CN110845971A - Modified asphalt pre-laid waterproof coiled material and preparation method thereof - Google Patents
Modified asphalt pre-laid waterproof coiled material and preparation method thereof Download PDFInfo
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- CN110845971A CN110845971A CN201911228070.1A CN201911228070A CN110845971A CN 110845971 A CN110845971 A CN 110845971A CN 201911228070 A CN201911228070 A CN 201911228070A CN 110845971 A CN110845971 A CN 110845971A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J195/00—Adhesives based on bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/304—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being heat-activatable, i.e. not tacky at temperatures inferior to 30°C
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- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
- C09J2423/046—Presence of homo or copolymers of ethene in the substrate
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- C—CHEMISTRY; METALLURGY
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- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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- Mining & Mineral Resources (AREA)
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- Hydrology & Water Resources (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention relates to a modified asphalt pre-paved waterproof coiled material and a preparation method thereof, and the technical scheme is as follows: the tire base enhancement layer is arranged in the modified asphalt pressure-sensitive self-adhesive layer, the anti-sticking isolation film is arranged on the lower surface of the modified asphalt pressure-sensitive self-adhesive layer, the intermittent tear seams are arranged on the left side and the right side of the anti-sticking isolation film, the weather-resistant mineral particle functional layer and the anti-sticking isolation edge film are adjacently arranged on the upper surface of the modified asphalt pressure-sensitive self-adhesive layer, and the anti-sticking isolation edge film is arranged on one side edge of the upper surface of the modified asphalt pressure-sensitive self-adhesive layer. The invention not only solves the technical defect that a protective layer is required to be arranged when the traditional modified asphalt pre-laid coiled material is constructed in China, but also solves the technical defects that the high polymer pre-laid coiled material is easy to warp and release at the overlapping edge, the high polymer pre-laid coiled material is constructed at special-shaped positions such as internal and external corners and the like, and the high polymer pre-laid coiled material is temporarily fixed on the back surface by using an adhesive tape.
Description
Technical Field
The invention relates to a modified asphalt waterproof coiled material, in particular to a modified asphalt pre-paved waterproof coiled material and a preparation method thereof.
Background
One of the difficulties which plague the industry for decades in underground waterproofing is the waterproofing quality of the bottom plate and the side wall without the construction space. The main reason is leakage of blow-by water. Traditional waterproof materials adopt outer waterproof and inner waterproof, and waterproof coiled materials are only adhered to a base layer, but not adhered to structural concrete. Once the coil is damaged, groundwater can flow between the waterproofing layer and the structural concrete, from the concrete cracks into the interior of the building. Another reason is sedimentation effects. When the traditional waterproof material is bonded with the base layer, once foundation settlement occurs, the base layer is easy to deform and settle, the waterproof layer is easy to distort and deform along with the foundation settlement, the waterproof layer is easy to separate from the bonded base layer, the waterproof layer cannot be completely sealed, and the bottom plate is exposed in underground water. Therefore, it becomes a challenge how to provide direct full-bonding waterproof protection for the structural concrete at the side wall part without the construction space of the bottom plate and the side wall.
The U.S. Grace corporation invented a pre-paved waterproof roll system and a construction technology in 1992, and the high-molecular self-adhesive film waterproof roll is adopted to realize full adhesion between the structural concrete and the side wall part without the construction space of the bottom plate and the side wall in the world for the first time, so that the optimal waterproof effect is obtained. The waterproof coiled material is a novel waterproof coiled material developed after 90 years in the 20 th century, has the advantages of good low-temperature and waterproof performances, high tension and elongation, self-adhesion and the like, is deeply favored by the building waterproof industry, particularly by construction units, and is rapidly developed domestically in recent years. However, the self-adhesive adopted by the waterproof coiled materials in China still mainly adopts modified asphalt and the surface of the self-adhesive is provided with an anti-sticking isolating membrane, so that the technical defects that a cement mortar protective layer needs to be arranged in the pre-paving construction process are caused, and further the low construction efficiency and the potential engineering risk are caused. Some published documents in recent years report solutions, such as:
the invention discloses a non-uncovering type macromolecule self-adhesive waterproof coiled material and a preparation method thereof, wherein the patent application number of the Chinese patent is 201310297231.9, the patent name is 'a non-uncovering type macromolecule self-adhesive waterproof coiled material', the invention comprises a plastic base material, the two sides of the upper surface of the plastic base material are lapping areas, the middle part of the upper surface of the plastic base material is a bonding area with structural concrete, and a self-adhesive layer and an isolating layer are thermally coated on the upper surface of the plastic base material. Wherein the self-adhesive layer in the structure of the uncovering-free type macromolecule self-adhesive waterproof coiled material consists of SBS resin, SIS resin, plasticizer, tackifier, light absorbent and filler; the self-adhesive layer is provided with an isolating layer which is composed of active inorganic particles and can generate hydration reaction with the freshly mixed cement-based material. When the self-adhesive waterproof coiled material with the structure is used, concrete is directly poured without removing an isolation layer material on the surface of the self-adhesive waterproof coiled material, and a firm connection interface is formed. Therefore, the method has the advantages of simpler construction, reduction of resource waste, more stable and reliable bonding performance with concrete and the like.
In document 2, chinese patent application No. 201420307428.6, the patent name "a high polymer pre-paved waterproof roll" is that the technical scheme of the patent is: the upper surface of the modified polyethylene plastic waterproof main body layer is an SIS hot-melt pressure-sensitive self-adhesive layer, and a weather-resistant mineral particle functional layer with cement reaction activity and a heat-reflection type anti-sticking isolation edge film positioned on one side edge of the coiled material are covered on the upper surface of the SIS hot-melt pressure-sensitive self-adhesive layer; the beneficial effects are that: the heat-reflection type anti-sticking isolation edge film can obviously reduce the surface temperature of the SIS hot-melt pressure-sensitive self-adhesive layer at the lapping edge part of the high-molecular pre-paved waterproof coiled material exposed to the sun outdoors, so that the thermal creep property of the SIS hot-melt pressure-sensitive self-adhesive is reduced, and the removal of the anti-sticking isolation edge film in the construction process is facilitated; the setting of the weather-resistant mineral particle functional layer enables the coiled material to have the concrete mortar bonding construction characteristic, effectively prevents the problem of ultraviolet ray aging caused by long-term exposure of self-adhesive glue in the air, and provides a non-sticky pedestrian surface for construction operation, thereby avoiding the setting of a cement mortar protective layer and reducing the construction cost.
The technical scheme reported in the above-mentioned published documents adopts macromolecule self-adhesive to replace modified asphalt self-adhesive, and basically solves the technical defects of poor ageing resistance and the need of setting cement mortar protective layer in the pre-laying construction process of the domestic existing products. However, the method still has fatal technical defects, namely, after the construction of the polyethylene plastic waterproof main body layer is finished, the lap joint part of the coiled material is easy to deform and tilt or even separate under the dual actions of swelling of the SIS hot melt pressure-sensitive self-adhesive and internal stress of the polyethylene plastic waterproof main body layer after the construction of the polyethylene plastic waterproof main body layer is exposed to the sun, and the engineering quality is seriously influenced; meanwhile, the production cost is high, the current market demand situation is difficult to adapt, and the popularization and the application of the product are seriously influenced.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a modified asphalt pre-paved waterproof coiled material and a preparation method thereof, which can solve the technical defects of the existing product, solve the cost problem and meet the technical requirements of national standard ' pre-paved waterproof coiled material ' (GB/T23457-2017) ').
The invention provides a modified asphalt pre-paved waterproof coiled material, which has the technical scheme that: the modified asphalt pressure-sensitive self-adhesive layer comprises a tire base enhancement layer (1), a modified asphalt pressure-sensitive self-adhesive layer (2), an anti-adhesion isolating film (3), a discontinuous tearing seam (4), a weather-resistant mineral particle functional layer (5) and an anti-adhesion isolating edge film (6), wherein the tire base enhancement layer (1) is positioned in the modified asphalt pressure-sensitive self-adhesive layer (2), the anti-adhesion isolating film (3) is positioned on the lower surface of the modified asphalt pressure-sensitive self-adhesive layer (2), the discontinuous tearing seam (4) is arranged on the left side and the right side of the anti-adhesion isolating film (3), the weather-resistant mineral particle functional layer (5) and the anti-adhesion isolating edge film (6) are adjacently arranged on the upper surface of the modified asphalt pressure-sensitive self-adhesive layer (2), and the anti-adhesion isolating edge film (6) is positioned.
Preferably, the base reinforcing layer (1) adopts a long fiber polyester base or a high-density polyethylene cross laminated film, and the anti-sticking isolating film (3) adopts a wrinkle-type or pattern-type anti-wrinkling anti-sticking isolating film. The anti-sticking isolation side film (6) adopts a heat reflection type polyester anti-sticking isolation film.
The preferable technical parameters of the long-fiber polyester tire are as follows: the gram weight is more than or equal to 250 g/square meter, the thickness is less than or equal to 1.5mm, the maximum tensile force is more than or equal to 850N/50mm, the elongation at maximum tensile force (extensometer method) is more than or equal to 42%, the tear strength of a nail rod is more than or equal to 220N, and the tear strength of a right angle is more than or equal to 350N. While the preferred technical parameters for the high density polyethylene cross-laminated film are: the number of composite layers is more than or equal to 3, the gram weight is more than or equal to 200 g/square meter, the thickness is less than or equal to 0.2mm, the maximum tension is more than or equal to 500N/50mm, the elongation at maximum tension (extensometer method) is less than or equal to 400%, the tear strength of a nail rod is more than or equal to 120N, and the tear strength of a right angle is more than or equal to 30N.
The optimized technical parameters of the wrinkle-resistant anti-sticking isolating film in the wrinkle type or the pattern type are as follows: the gram weight is more than or equal to 35 g/square meter, the maximum tensile force is more than or equal to 70N/50mm, and the elongation at the maximum tensile force (extensometer method) is more than or equal to 200 percent.
The heat reflection type polyester release film has the following technical parameters: the gram weight is more than or equal to 40 g/square meter, the maximum tensile force is more than or equal to 200N/50mm, and the elongation at the maximum tensile force (extensometer method) is more than or equal to 50 percent.
Preferably, the modified asphalt pressure-sensitive self-adhesive comprises the following components in parts by weight: 5-12 parts of SBS thermoplastic rubber; 15-30 parts of regenerated rubber powder; 90-110 parts of heavy traffic asphalt; 15-30 parts of rubber operating oil; 3-10 parts of a solid tackifier; 0-10 parts of a liquid tackifier; 5-15 parts of petroleum resin; 45-70 parts of fly ash; 2-5 parts of an environment-friendly odor-free activating agent; 5-20 parts of high-activity superfine slag micro powder.
The invention provides a modified asphalt pre-paved waterproof coiled material, and a modified asphalt pressure-sensitive self-adhesive is prepared by the following method:
firstly, adding regenerated rubber powder into a high-speed hot mixer, spraying an environment-friendly odor-free activating agent under low-speed stirring, starting high-speed stirring, heating to 90-100 ℃ to prepare odor-free activated rubber powder, then discharging the activated rubber powder to a low-speed cold mixer, and stirring and cooling to room temperature for later use; then adding the heavy traffic asphalt and the rubber operating oil into a vertical batching tank, stirring, mixing and heating to 140-150 ℃, then sequentially and slowly adding SBS thermoplastic rubber, solid tackifier and prefabricated odor-free activated rubber powder, slowly heating to 160-170 ℃, starting a colloid mill to grind for 2-3 times until no visible particles exist, adding liquid tackifying resin and petroleum resin, cooling and stirring until the petroleum resin is melted and dispersed uniformly, sending the modified asphalt into a horizontal filling stirring tank, adding fly ash, keeping the temperature and stirring uniformly, adding high-activity superfine slag micro powder, and stirring uniformly to prepare the modified asphalt pressure-sensitive self-adhesive.
Preferably, the SBS thermoplastic rubber is a styrene-butadiene-styrene block copolymer, and the preferred technical parameters are: the combined styrene content (mass fraction) is 28-32%, the block styrene content (mass fraction) is 96-100%, the combined styrene is a commercial product, the average molecular weight (Mn) is about 10 ten thousand, and the melt mass flow rate is 0.5-1.0 g/10min (230 ℃/10 kg).
Preferably, the solid tackifier is a linear random rubber, and the main technical parameters are as follows: the combined styrene content (mass fraction) is 24-26%, the polystyrene content (mass fraction) is 17-18%, and the melt mass flow rate is 0.1-0.5 g/10min (230 ℃/10 kg).
Preferably, the environment-friendly odor-free activating agent is vegetable oil modified by bio-oil esterification, is a commercially available product, and has the main technical parameters of: kinematic viscosity (25 ℃) of 80-120 mm2The flash point of the opening is more than or equal to 220 ℃, the condensation point is-10 to-20 ℃, the volatile matter (180 ℃/2 h) is less than or equal to 2.0 percent, the content of eighteen Polycyclic Aromatic Hydrocarbons (PAHS) is less than or equal to 2mg/kg, and the ash content (800 ℃/2 h) is less than or equal to 0.2 percent.
The high-activity superfine slag micro powder is a superfine inorganic powder material with high hydration reaction activity, and the preferable technical indexes are as follows: the specific surface area is 700-1000 square meters per kg, the activation index (when 7 days) is more than or equal to 96 percent, and the water content is less than or equal to 0.5 percent.
The weather-resistant mineral particle functional layer (5) is composed of synthetic sand, preferably the synthetic sand made of white cement, high-activity superfine slag powder, natural mineral particles and the like, and the size range of the synthetic sand is 30-70 meshes of continuous grading.
Preferably, the heavy-traffic asphalt is naphthenic low-smoke asphalt produced by an atmospheric and vacuum distillation process; the regenerated rubber powder is 60-mesh activated rubber powder; the fly ash is fly ash of a thermal power plant.
The liquid tackifier is low molecular weight liquid rubber, and the preferable technical parameters are that the open flash point is more than or equal to 220 ℃, the pour point is less than or equal to 5 ℃, the average molecular weight (Mn) is 1000-1500, and the kinematic viscosity (100 ℃) is 300-1000 mm2/s。
The rubber operating oil is environment-friendly rubber operating oil, and the main technical parameters comprise: kinematic viscosity (25 ℃) is less than or equal to 1500mm2The concentration of the Polycyclic Aromatic Hydrocarbon (PAHS) is less than or equal to 10 mg/kg, and the aniline point is 65-95 ℃.
It should be noted that: the environment-friendly odor-free activator is a vegetable oil modified by a biomass oil esterification product, such as corn oil modified by palm oil esterification product. The rubber powder swelling agent has the functions of softening, swelling and activating rubber, and can promote the C-C bond and C-S bond of the rubber powder to break under the action of mechanical external force, so that the rubber powder swelling agent has the functions of rapid degradation and activation of tire rubber powder, the swelling and degradation speed of the tire rubber powder in asphalt can be accelerated by adding the odor-free activating agent, the swelling time of the rubber powder is effectively shortened, the production efficiency of the modified asphalt is improved, and the energy consumption is reduced. Meanwhile, the odor-free activating agent can reduce the emission of carbon monoxide, sulfur dioxide, hydrogen sulfide and other atmospheric pollutants through the actions of chemical decomposition, reaction absorption and the like, greatly reduce the pungent smell in the preparation of modified asphalt and the production process of modified asphalt coiled materials, and also obviously reduce the production amount and treatment difficulty of waste gas and waste water.
It needs to be further explained that: the chemical components of the high-activity superfine slag micro powder comprise SiO2、Al2O3The content of active minerals such as CaO, MgO, etc., vitreous body, dicalcium silicate, etc. is more than 95%, and the active minerals are characterized by potential hydration activity, when the active minerals are mixed with cement concrete, active SiO2、Al2O3With C in cement3S and C2Ca (OH) produced by hydration of S2And (3) reacting to further form a hydrated calcium silicate product, filling micro capillary holes of the cement concrete, and greatly improving the compactness of the concrete. Also has latent hydraulic properties, containsDicalcium silicate and vitreous body (e.g. C)2S, etc.) has independent hydraulicity and can be quickly hardened in water under the excitation action of CaO and CaSO4, so that the introduction of the high-activity superfine slag micro-powder component enables the modified asphalt pressure-sensitive self-adhesive to have cement reactivity.
It is further explained that: the weather-resistant mineral particles constituting the weather-resistant mineral particle functional layer (5) have the following technical characteristics: one is irregular flat polygonal, has proper continuous gradation, can effectively improve the contact surface with the hot-melt pressure-sensitive self-adhesive, thereby improving the adhesion firmness and simultaneously putting an end to the puncture damage of the sharp particles to the thermoplastic polyolefin waterproof main body layer; the self-adhesive has excellent weather resistance and water resistance, and can effectively prevent the problem of ultraviolet aging and the like caused by long-term exposure of the self-adhesive in the air under the protection of the self-adhesive; thirdly, the cement has cement reactivity and plays a role in reaction and combination in the solidification process of concrete; and the fourth step is to have the anti-sticking function, which plays the role of anti-sticking in production and transportation, and makes the coiled material resist trampling of human in the construction process.
The technical principle of the invention is as follows: the modified asphalt pressure-sensitive self-adhesive can be endowed with excellent low-temperature performance, pressure-sensitive characteristics and other physical characteristics by adopting various modifiers such as SBS thermoplastic rubber, reclaimed rubber powder, solid tackifier and the like to carry out compound modification on asphalt, and simultaneously, the polarity of the modified asphalt pressure-sensitive self-adhesive is adjusted to expand the adaptability to a bonding base layer; the rubber operating oil and the environment-friendly odor-free activating agent are used for softening rubber sections and plastic sections of modifiers such as SBS and the like, so that the modifiers are fully swelled in asphalt to form an island-in-sea structure of the asphalt, thereby having excellent adhesion and creep property; the wettability of the modified asphalt pressure-sensitive self-adhesive to a bonding base layer is further improved by introducing the petroleum resin and the liquid tackifier, so that the modified asphalt pressure-sensitive self-adhesive has good initial viscosity, lasting viscosity and bonding force; the purpose of introducing the high-activity superfine slag powder and the liquid tackifier in the system is to ensure that the high-activity superfine slag powder and the active group (SiO) on the molecular structure of the tackifying resin are in contact with the interface of the uncured cement when the product is in contact with the interface of the uncured cement2、Al2O3、C2S and hydroxyl groups, etc.) in cementThe modified asphalt pressure-sensitive self-adhesive can generate thermal creep under the action of cement hydration heat, micro pores on an adhesion interface are automatically filled, van der waals attraction is formed on the adhesion interface, and weather-resistant mineral particles can form mechanical riveting force with cured cement besides reacting with the cement, so that bonding force formed by the combination forces of van der waals attraction force plus chemical bonding force plus mechanical riveting force is formed on the adhesion interface after the cement is cured, and continuous, permanent and firm adhesion is formed after the concrete is cured. The water channeling channel is completely eliminated, a skin-type waterproof system is formed, and even if the waterproof layer is locally damaged, external water cannot flow between the waterproof layer and the structural concrete. And the waterproof performance is obviously improved.
Compared with the prior art, the invention has the following beneficial effects:
the modified asphalt pre-paved waterproof coiled material manufactured and produced by the invention has the advantages that the upper surface adopts the protective layer-free design of the weather-resistant mineral particle functional layer, so that the product has the pre-paved anti-sticking construction function, and the lower surface adopts the design of the modified asphalt pressure-sensitive self-sticking adhesive layer and the anti-sticking isolating film which can be removed according to the requirement, so that the modified asphalt pre-paved waterproof coiled material has the temporary fixing function of the base layer. Therefore, the technical defect that a protective layer is required to be arranged when the domestic modified asphalt pre-laid coiled material is constructed is overcome. Meanwhile, the technical defects that the high polymer pre-laid coiled material is easy to warp and release at the overlapping edge and the high polymer pre-laid coiled material needs to be temporarily fixed on the back surface by using an adhesive tape when being constructed at special-shaped positions such as internal and external corners and the like are overcome. The raw materials used for production are wide in material obtaining range, convenient and easy to obtain, so that the production cost is greatly reduced, the higher-molecular-type pre-paved coiled material has a remarkable cost advantage, and the method is convenient to use and beneficial to improvement of the construction efficiency and the construction quality reliability.
The adhesive has the advantages that the adhesive has the effective combination of a cement reaction activity modified asphalt pressure-sensitive self-adhesive layer and a weather-resistant mineral particle functional layer, so that the coiled material has the adhesive property of cement mortar (or concrete) and the pre-paving anti-adhesion function, and the coiled material can be subjected to the adhesive construction operation of the cement mortar (or concrete). Thereby effectively solving the problem that dust and the like on the construction site pollute the bonding surface.
And secondly, the application of the modified asphalt pressure-sensitive self-adhesive with cement reactivity enables the coiled material to have the thermal creep characteristic under the action of cement hydration heat, so that the adhesiveness of the coiled material under the low-temperature condition (the construction environment temperature is 5-10 ℃) is ensured, and the construction application temperature of the coiled material is widened.
Thirdly, the introduction of the chemical reaction process of the bonding process of the modified asphalt pressure-sensitive self-adhesive with cement reactivity enables the modified asphalt pressure-sensitive self-adhesive to form permanent organic combination with the structural layer concrete, and eliminates the hidden trouble of water channeling; even if the coiled material is locally damaged, the water is limited in a small range, and the waterproof reliability is improved.
And fourthly, the modified asphalt pressure-sensitive self-adhesive with cement reactivity has strong self-healing property and unique self-healing capability for slight construction damage.
And fifthly, the construction is convenient, a leveling layer is not needed, the requirement on the base layer is low, the influence of weather and base layer humidity is avoided, the construction in rainy season and construction period reaching engineering have unique obvious advantages, and a cement mortar protective layer which is time-consuming and financial-consuming is not needed.
And sixthly, the waterproof coiled material is laid on the base layer in the air, is convenient and quick, and is not influenced by the sedimentation deformation of the base layer.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the upper diagram: the modified asphalt self-adhesive tyre comprises a tyre base reinforcing layer 1, a modified asphalt pressure-sensitive self-adhesive layer 2, an anti-adhesion isolating film 3, a discontinuous tear seam 4, a weather-resistant mineral particle functional layer 5 and an anti-adhesion isolating edge film 6.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The invention provides a modified asphalt pre-paved waterproof coiled material, which comprises the following preparation methods:
1. the preparation method of the modified asphalt pressure-sensitive self-adhesive comprises the following steps:
firstly, adding 30 parts of regenerated rubber powder into a high-speed (hot) mixer, spraying 5 parts of environment-friendly odor-free activating agent such as palm oil esterified substance modified corn oil under low-speed stirring, starting high-speed stirring, heating to 90 ℃ to prepare odor-free activated rubber powder, then discharging the odor-free activated rubber powder into a low-speed (cold) mixer, and stirring and cooling to room temperature for later use; then adding 90 parts of heavy traffic asphalt and 30 parts of rubber operating oil into a vertical batching tank, stirring, mixing and heating to 150 ℃, then slowly adding 5 parts of SBS thermoplastic rubber, 5 parts of solid tackifier and prefabricated odor-free activated rubber powder in turn, slowly heating to 170 ℃, starting a colloid mill to grind for 2-3 times until no visible particles exist, adding 2 parts of liquid tackifying resin and 15 parts of petroleum resin, cooling, stirring until the petroleum resin is melted and uniformly dispersed, sending the modified asphalt into a horizontal filling stirring tank, adding 60 parts of fly ash, keeping the temperature, stirring uniformly, adding 10 parts of high-activity superfine slag micro powder, and stirring uniformly to prepare the modified asphalt pressure-sensitive adhesive.
2. The forming preparation method of the modified asphalt pre-paved waterproof coiled material comprises the following steps:
the pre-prepared modified asphalt self-adhesive is sent to a forming production line, a long fiber polyester tire base reinforcing layer of 250 g/square meter is firstly subjected to asphalt dipping and squeezing in an oil dipping system, then enters an oil coating system to coat and fix the thickness of the modified asphalt pressure-sensitive self-adhesive on two sides of the reinforcing layer, then a weather-resistant mineral particle functional layer and a heat-reflective polyester anti-sticking barrier side film are coated on the upper surface of the modified asphalt pressure-sensitive self-adhesive, a fold-type or pattern-type anti-wrinkling anti-sticking barrier film is coated on the lower surface of the reinforcing layer, then an intermittent cutting device is used for cutting an intermittent tear seam in an on-line manner, and the reinforcing layer modified asphalt pre-laid waterproof coiled material product with the thickness of 4mm and the cement reaction activity is prepared through the procedures of traction, compaction, cooling, conveying. The adhesive performance is tested according to the relevant national standards of pre-paved waterproof coiled materials (GB/T23457-2017) and wet-paved waterproof coiled materials (GBT 35467-2017), and the like, and the relevant data are shown in Table 1.
Example 2:
the invention provides a modified asphalt pre-paved waterproof coiled material, which is different from the embodiment 1 in that the preparation method comprises the following steps:
1. preparation method of modified asphalt pressure-sensitive self-adhesive
Firstly, adding 15 parts of regenerated rubber powder into a high-speed (hot) mixer, spraying 3 parts of environment-friendly odor-free activating agent under low-speed stirring, starting high-speed stirring, heating to 100 ℃ to prepare odor-free activated rubber powder, then discharging the activated rubber powder to a low-speed (cold)) mixer, and stirring and cooling to room temperature for later use; then adding 110 parts of heavy traffic asphalt and 15 parts of rubber operating oil into a vertical batching tank, stirring, mixing and heating to 140 ℃, then slowly adding 10 parts of SBS thermoplastic rubber, 3 parts of solid tackifier and prefabricated odor-free activated rubber powder in turn, slowly heating to 160 ℃, starting a colloid mill to grind for 2-3 times until no visible particles exist, adding 4 parts of liquid tackifying resin and 10 parts of petroleum resin, cooling, stirring until the petroleum resin is melted and uniformly dispersed, sending the modified asphalt into a horizontal filling stirring tank, adding 45 parts of fly ash, keeping the temperature, stirring uniformly, adding 5 parts of high-activity superfine slag micro powder, and stirring uniformly to prepare the modified asphalt pressure-sensitive adhesive.
2. Forming preparation method of coiled material
The pre-prepared modified asphalt self-adhesive is sent to a forming production line, a long fiber polyester tire base reinforcing layer of 250 g/square meter is firstly subjected to asphalt dipping and squeezing in an oil dipping system, then enters an oil coating system to coat and fix the thickness of the modified asphalt pressure-sensitive self-adhesive on two sides of the reinforcing layer, then a weather-resistant mineral particle functional layer and a heat-reflective polyester anti-sticking barrier side film are coated on the upper surface of the modified asphalt pressure-sensitive self-adhesive, a fold-type or pattern-type anti-wrinkling anti-sticking barrier film is coated on the lower surface of the reinforcing layer, then an intermittent cutting device is used for cutting an intermittent tear seam in an on-line manner, and the reinforcing layer modified asphalt pre-laid waterproof coiled material product with the thickness of 4mm and the cement reaction activity is prepared through the procedures of traction, compaction, cooling, conveying. The adhesive performance is tested according to the relevant national standards of pre-paved waterproof coiled materials (GB/T23457-2017) and wet-paved waterproof coiled materials (GBT 35467-2017), and the like, and the relevant data are shown in Table 1.
Example 3:
the invention provides a modified asphalt pre-paved waterproof coiled material, which comprises the following preparation methods:
1. preparation method of modified asphalt pressure-sensitive self-adhesive
Firstly, adding 30 parts of regenerated rubber powder into a high-speed (hot) mixer, spraying 5 parts of environment-friendly odor-free activating agent under low-speed stirring, starting high-speed stirring, heating to 90 ℃ to prepare odor-free activated rubber powder, then discharging to a low-speed (cold)) mixer, and stirring and cooling to room temperature for later use; then adding 90 parts of heavy traffic asphalt and 30 parts of rubber operating oil into a vertical batching tank, stirring, mixing and heating to 150 ℃, then slowly adding 5 parts of SBS thermoplastic rubber, 5 parts of solid tackifier and prefabricated odor-free activated rubber powder in turn, slowly heating to 170 ℃, starting a colloid mill to grind for 2-3 times until no visible particles exist, adding 2 parts of liquid tackifying resin and 15 parts of petroleum resin, cooling, stirring until the petroleum resin is melted and uniformly dispersed, sending the modified asphalt into a horizontal filling stirring tank, adding 60 parts of fly ash, keeping the temperature, stirring uniformly, adding 10 parts of high-activity superfine slag micro powder, and stirring uniformly to prepare the modified asphalt pressure-sensitive adhesive.
2. Forming preparation method of coiled material
The pre-prepared modified asphalt self-adhesive is sent to a forming production line, then the two sides of a high-density polyethylene cross laminated film reinforced layer of 200 g/square meter are coated with the modified asphalt pressure-sensitive adhesive with fixed thickness, then the upper surface of the modified asphalt pressure-sensitive adhesive is coated with a weather-resistant mineral particle functional layer and a heat-reflective polyester anti-sticking isolating edge film, the lower surface is coated with a wrinkle-resistant or pattern-resistant anti-sticking isolating film, then an intermittent tearing seam is cut by an intermittent cutting device in an 'on-line' manner, and then the internal enhanced modified asphalt pre-laid waterproof coiled material product with the thickness of 1.2mm and the cement reaction activity is prepared through the procedures of traction, compaction, cooling, conveying, coiling, metering, cutting, packaging and the like. The adhesive performance is tested according to the relevant national standards of pre-paved waterproof coiled materials (GB/T23457-2017) and wet-paved waterproof coiled materials (GBT 35467-2017), and the like, and the relevant data are shown in Table 1.
Example 4:
the invention provides a modified asphalt pre-paved waterproof coiled material, which comprises the following preparation methods:
1. preparation method of modified asphalt pressure-sensitive self-adhesive
Firstly, adding 15 parts of regenerated rubber powder into a high-speed (hot) mixer, spraying 3 parts of environment-friendly odor-free activating agent under low-speed stirring, starting high-speed stirring, heating to 100 ℃ to prepare odor-free activated rubber powder, then discharging to a low-speed (cold)) mixer, and stirring and cooling to room temperature for later use; then adding 110 parts of heavy traffic asphalt and 15 parts of rubber operating oil into a vertical batching tank, stirring, mixing and heating to 140 ℃, then slowly adding 10 parts of SBS thermoplastic rubber, 3 parts of solid tackifier and prefabricated odor-free activated rubber powder in turn, slowly heating to 160 ℃, starting a colloid mill to grind for 2-3 times until no visible particles exist, adding 4 parts of liquid tackifying resin and 10 parts of petroleum resin, cooling, stirring until the petroleum resin is melted and uniformly dispersed, sending the modified asphalt into a horizontal filling stirring tank, adding 45 parts of fly ash, keeping the temperature, stirring uniformly, adding 5 parts of high-activity superfine slag micro powder, and stirring uniformly to prepare the modified asphalt pressure-sensitive adhesive.
2. Forming preparation method of coiled material
The pre-prepared modified asphalt self-adhesive is sent to a forming production line, then the two sides of a high-density polyethylene cross laminated film reinforced layer of 300 g/square meter are coated with the modified asphalt pressure-sensitive adhesive with fixed thickness, then the upper surface of the modified asphalt pressure-sensitive adhesive is coated with a weather-resistant mineral particle functional layer and a heat-reflective polyester anti-sticking isolating edge film, the lower surface is coated with a wrinkle-resistant or pattern-resistant anti-sticking isolating film, then an intermittent tearing seam is cut by an intermittent cutting device in an 'on-line' manner, and then the procedures of traction, compaction, cooling, conveying, coiling, metering, cutting, packaging and the like are carried out to prepare the internally-enhanced modified asphalt pre-laid waterproof coiled material product with the thickness of 1.2mm and the cement reaction activity. The adhesive performance is tested according to the relevant national standards of pre-paved waterproof coiled materials (GB/T23457-2017) and wet-paved waterproof coiled materials (GBT 35467-2017), and the like, and the relevant data are shown in Table 1.
TABLE 1 product adhesion Properties
As can be seen from the above results, the product has excellent cement reactivity, i.e., excellent cement mortar or post-cement
The cohesiveness of the cast concrete and the cohesiveness of the cast concrete both meet the technical requirements of national product standard of pre-paved waterproof coiled material (GB/T23457-2017).
The above description is only a few of the preferred embodiments of the present invention, and any person skilled in the art may modify the above-described embodiments or modify them into equivalent ones. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a modified asphalt pre-paved waterproofing membrane which characterized by: the modified asphalt pressure-sensitive self-adhesive layer comprises a tire base enhancement layer (1), a modified asphalt pressure-sensitive self-adhesive layer (2), an anti-adhesion isolating film (3), a discontinuous tearing seam (4), a weather-resistant mineral particle functional layer (5) and an anti-adhesion isolating edge film (6), wherein the tire base enhancement layer (1) is positioned in the modified asphalt pressure-sensitive self-adhesive layer (2), the anti-adhesion isolating film (3) is positioned on the lower surface of the modified asphalt pressure-sensitive self-adhesive layer (2), the discontinuous tearing seam (4) is arranged on the left side and the right side of the anti-adhesion isolating film (3), the weather-resistant mineral particle functional layer (5) and the anti-adhesion isolating edge film (6) are adjacently arranged on the upper surface of the modified asphalt pressure-sensitive self-adhesive layer (2), and the anti-adhesion isolating edge film (6) is positioned.
2. The modified asphalt pre-paved waterproof roll material as claimed in claim 1, which is characterized in that: the base reinforced layer (1) adopts a long-fiber polyester base or a high-density polyethylene cross laminated film.
3. The modified asphalt pre-paved waterproof roll material as claimed in claim 1, which is characterized in that: the anti-sticking isolating film (3) is a wrinkle-resistant anti-sticking isolating film or a pattern-resistant anti-sticking isolating film.
4. The modified asphalt pre-paved waterproof roll material as claimed in claim 1, which is characterized in that: the anti-sticking isolation side film (6) adopts a heat reflection type polyester anti-sticking isolation film.
5. The modified asphalt pre-paved waterproof roll material as claimed in claim 1, which is characterized in that: the modified asphalt pressure-sensitive self-adhesive comprises the following components in parts by weight: 5-12 parts of SBS thermoplastic rubber; 15-30 parts of regenerated rubber powder; 90-110 parts of heavy traffic asphalt; 15-30 parts of rubber operating oil; 3-10 parts of a solid tackifier; 0-10 parts of a liquid tackifier; 5-15 parts of petroleum resin; 45-70 parts of fly ash; 2-5 parts of an environment-friendly odor-free activating agent; 5-20 parts of high-activity superfine slag micro powder.
6. The modified asphalt pre-paved waterproof coiled material as claimed in claim 5, wherein the modified asphalt pressure-sensitive self-adhesive is prepared by the following method:
firstly, adding regenerated rubber powder into a high-speed hot mixer, spraying an environment-friendly odor-free activating agent under low-speed stirring, starting high-speed stirring, heating to 90-100 ℃ to prepare odor-free activated rubber powder, then discharging the activated rubber powder to a low-speed cold mixer, and stirring and cooling to room temperature for later use; then adding the heavy traffic asphalt and the rubber operating oil into a vertical batching tank, stirring, mixing and heating to 140-150 ℃, then sequentially and slowly adding SBS thermoplastic rubber, solid tackifier and prefabricated odor-free activated rubber powder, slowly heating to 160-170 ℃, starting a colloid mill to grind for 2-3 times until no visible particles exist, adding liquid tackifying resin and petroleum resin, cooling and stirring until the petroleum resin is melted and dispersed uniformly, sending the modified asphalt into a horizontal filling stirring tank, adding fly ash, keeping the temperature and stirring uniformly, adding high-activity superfine slag micro powder, and stirring uniformly to prepare the modified asphalt pressure-sensitive self-adhesive.
7. The modified asphalt pre-paved waterproof roll as claimed in claim 5, which is characterized in that: the SBS thermoplastic rubber is a styrene-butadiene-styrene block copolymer; the solid tackifier is a linear random rubber.
8. The modified asphalt pre-paved waterproof roll as claimed in claim 5, which is characterized in that: the environment-friendly odor-free activating agent is vegetable oil modified by bio-oil esterified substance.
9. The modified asphalt pre-paved waterproof roll as claimed in claim 5, which is characterized in that: the high-activity superfine slag micro powder is a superfine inorganic powder material with high hydration reaction activity.
10. The modified asphalt pre-paved waterproof roll as claimed in claim 5, which is characterized in that: the heavy traffic asphalt is naphthenic base low-smoke asphalt produced by an atmospheric and vacuum distillation process; the regenerated rubber powder is 60-mesh activated rubber powder; the fly ash is fly ash of a thermal power plant.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103547163A (en) * | 2011-05-23 | 2014-01-29 | J-制油株式会社 | Oil or fat composition |
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| CN110330910A (en) * | 2019-06-20 | 2019-10-15 | 江苏凯伦建材股份有限公司 | Cross-level press mold overlays the preparation process of waterproof roll |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103547163A (en) * | 2011-05-23 | 2014-01-29 | J-制油株式会社 | Oil or fat composition |
| CN104057686A (en) * | 2014-06-11 | 2014-09-24 | 胜利油田大明新型建筑防水材料有限责任公司 | Preparation method of pre-laid waterproof coiled material for concrete mortar bonding construction |
| CN203923773U (en) * | 2014-06-11 | 2014-11-05 | 胜利油田大明新型建筑防水材料有限责任公司 | A kind of high-polymer self-adhesion waterproof coiled material |
| CN106007545A (en) * | 2016-06-06 | 2016-10-12 | 中国石油集团长城钻探工程有限公司固井公司 | Cement slurry with long-term-integrity cement sheath for heavy-oil thermal-recovery well and preparation method thereof |
| CN110330910A (en) * | 2019-06-20 | 2019-10-15 | 江苏凯伦建材股份有限公司 | Cross-level press mold overlays the preparation process of waterproof roll |
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