CN109605868B - A kind of concrete high-efficiency thermal insulation and moisturizing composite curing film with light-heat conversion effect - Google Patents
A kind of concrete high-efficiency thermal insulation and moisturizing composite curing film with light-heat conversion effect Download PDFInfo
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 41
- 230000000694 effects Effects 0.000 title claims abstract description 34
- 230000003020 moisturizing effect Effects 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 238000009413 insulation Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000004831 Hot glue Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims description 33
- 239000011347 resin Substances 0.000 claims description 33
- 239000002985 plastic film Substances 0.000 claims description 24
- 229920006255 plastic film Polymers 0.000 claims description 24
- 238000010521 absorption reaction Methods 0.000 claims description 15
- 239000004745 nonwoven fabric Substances 0.000 claims description 15
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 13
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 13
- 229920006395 saturated elastomer Polymers 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 10
- 229920000767 polyaniline Polymers 0.000 claims description 8
- 229920000128 polypyrrole Polymers 0.000 claims description 8
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 7
- 229920001169 thermoplastic Polymers 0.000 claims description 7
- 239000004416 thermosoftening plastic Substances 0.000 claims description 7
- 229920000058 polyacrylate Polymers 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 2
- MOFVSTNWEDAEEK-UHFFFAOYSA-M indocyanine green Chemical compound [Na+].[O-]S(=O)(=O)CCCCN1C2=CC=C3C=CC=CC3=C2C(C)(C)C1=CC=CC=CC=CC1=[N+](CCCCS([O-])(=O)=O)C2=CC=C(C=CC=C3)C3=C2C1(C)C MOFVSTNWEDAEEK-UHFFFAOYSA-M 0.000 claims description 2
- 229960004657 indocyanine green Drugs 0.000 claims description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 2
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920000123 polythiophene Polymers 0.000 claims description 2
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 2
- 239000011118 polyvinyl acetate Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 239000002174 Styrene-butadiene Substances 0.000 claims 1
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 150000003926 acrylamides Chemical class 0.000 claims 1
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 229920001400 block copolymer Polymers 0.000 claims 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 claims 1
- 239000005060 rubber Substances 0.000 claims 1
- 239000011115 styrene butadiene Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 12
- 230000001070 adhesive effect Effects 0.000 abstract description 12
- 239000004744 fabric Substances 0.000 abstract description 2
- 238000001723 curing Methods 0.000 description 43
- 230000000052 comparative effect Effects 0.000 description 19
- 239000012790 adhesive layer Substances 0.000 description 12
- 238000012423 maintenance Methods 0.000 description 12
- 229920002401 polyacrylamide Polymers 0.000 description 7
- 229910021538 borax Inorganic materials 0.000 description 6
- 238000005336 cracking Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 239000004328 sodium tetraborate Substances 0.000 description 6
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- 230000035699 permeability Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Lining And Supports For Tunnels (AREA)
- Laminated Bodies (AREA)
Abstract
本发明涉及一种具有光热转换效果的混凝土高效保温保湿复合养护膜，其由具有光热转换功能的塑料膜、高吸水树脂材料和透水密贴层依次复合而成，所述各材料间通过热熔胶和水性胶粘结，解决了目前的保湿养护布/膜材料持续保水效果一般，异形面难以密贴，保温效果不足等问题。The invention relates to a concrete high-efficiency thermal insulation and moisturizing composite curing film with light-heat conversion effect. The bonding of hot melt adhesive and water-based adhesive solves the problems that the current moisturizing and curing cloth/film materials have poor continuous water retention effect, difficult to adhere closely to the special-shaped surface, and insufficient thermal insulation effect.
Description
技术领域technical field
本发明属于混凝土养护的技术领域，具体涉及一种具有光热转换效果的混凝土高效保温保湿复合养护膜。The invention belongs to the technical field of concrete curing, and in particular relates to a concrete high-efficiency thermal insulation and moisturizing composite curing film with light-heat conversion effect.
背景技术Background technique
合理的养护是确保混凝土工程质量的关键控制环节，对控制混凝土的早期失水开裂、后期干燥收缩开裂，以及温度裂缝至关重要。如何实现混凝土全过程保温保湿养护，降低混凝土的干燥收缩开裂及温度应力开裂风险，提高混凝土结构的耐久性，一直是混凝土界研究的热点。Reasonable maintenance is a key control link to ensure the quality of concrete engineering, and it is very important to control the early water loss cracking, the later drying shrinkage cracking, and the temperature cracking of concrete. How to realize the whole process of heat preservation and moisturizing maintenance of concrete, reduce the risk of drying shrinkage cracking and temperature stress cracking of concrete, and improve the durability of concrete structure has always been a research hotspot in the concrete field.
对于大多数现浇混凝土而言，目前常用的养护方法主要有人工洒水养护和喷洒养护剂养护，但这两种方法在实际应用中均存在较大的不足。人工洒水养护存在的不足主要体现在：①洒水养护的频次和水量难以保证，导致混凝土的养护湿度难以满足规范要求。在严重缺水的地区，这一问题体现得愈发突出；②在早期刚浇筑的混凝土表面直接喷洒冷水，易加剧现浇混凝土结构表面与内部的温差，增大温度开裂风险；③无法实现保温养护的效果；④适用范围有限，对于高塔和隧道衬砌等非平面结构，无法进行有效的人工洒水养护。而喷洒养护剂养护虽然规避了人工洒水养护时的补水不及时、加剧温差、适用范围有限的问题，但由于养护剂的保湿效果不足，混凝土的失水率多数仍在20%以上，同样很难实现真正的保湿养护。For most cast-in-place concrete, the current commonly used curing methods mainly include manual watering curing and spraying curing agent curing, but these two methods have major deficiencies in practical application. The shortcomings of artificial watering maintenance are mainly reflected in: ①The frequency and water volume of watering maintenance are difficult to guarantee, which makes it difficult for the curing humidity of concrete to meet the specification requirements. In areas with severe water shortage, this problem becomes more and more prominent; ② Directly spraying cold water on the surface of the concrete just poured in the early stage will easily increase the temperature difference between the surface and the interior of the cast-in-place concrete structure, and increase the risk of temperature cracking; ③ It is impossible to achieve thermal insulation ④ The scope of application is limited, for non-planar structures such as tall towers and tunnel linings, it is impossible to carry out effective artificial watering maintenance. Although spraying curing agent maintenance avoids the problems of untimely replenishment, aggravating temperature difference and limited application range during manual watering curing, but due to the insufficient moisturizing effect of curing agent, the water loss rate of concrete is still more than 20%, which is also difficult. For true moisturizing care.
为进一步提高混凝土养护效果，人们逐渐开始关注节水养护技术。如实用新型专利CN 206855716 U公开了一种混凝土节水保湿养护膜，包括依次叠设的不透水膜、无纺布和吸水膜，具备铺设速度快，体积小，重量轻减少运输成本等特点。发明专利CN 106739343A公开了一种利用高吸水浆液制备混凝土节水保湿养护膜的制备方法，所制备养护膜具有良好的重复使用性。但总体而言，目前的保湿养护布/膜材料存在持续保水效果一般，异形面难以密贴，保温效果不足等问题，需要开发更适应于现浇混凝土养护的养护膜。In order to further improve the curing effect of concrete, people gradually began to pay attention to water-saving curing technology. For example, utility model patent CN 206855716 U discloses a concrete water-saving, moisturizing and curing film, which includes an impermeable film, a non-woven fabric and a water-absorbing film stacked in sequence, and has the characteristics of fast laying speed, small size, light weight, and reduced transportation costs. Invention patent CN 106739343A discloses a preparation method for preparing concrete water-saving moisturizing curing film by using high water absorption slurry, and the prepared curing film has good reusability. However, in general, the current moisturizing and curing cloth/membrane materials have problems such as poor continuous water-retaining effect, difficulty in closely adhering special-shaped surfaces, and insufficient thermal insulation effect.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于解决上述问题，提供一种具有光热转换效果的混凝土高效保温保湿复合养护膜。The purpose of the present invention is to solve the above-mentioned problems, and to provide a concrete high-efficiency thermal insulation and moisturizing composite curing film with light-heat conversion effect.
本发明所述的一种具有光热转换效果的混凝土高效保温保湿复合养护膜，特征在于由具有光热转换功能的塑料膜、高吸水树脂材料和透水密贴层依次复合而成，所述各材料间通过热熔胶和水性胶粘结。The high-efficiency heat-insulating and moisturizing composite curing film for concrete with light-heat conversion effect according to the present invention is characterized in that it is composed of a plastic film with light-heat conversion function, a superabsorbent resin material and a water-permeable adhesive layer in turn. The materials are bonded by hot melt adhesive and water-based adhesive.
所述塑料膜中含有具有光热转换效果的稀土配合物、吲哚菁绿、聚苯胺、聚吡咯、聚噻吩中的一种或多种，其用量为塑料膜总质量的0.001%~0.1%，且塑料膜的太阳能吸收率高于0.7，半球发射率低于0.2。The plastic film contains one or more of rare earth complexes with photothermal conversion effects, indocyanine green, polyaniline, polypyrrole, and polythiophene, and the amount thereof is 0.001% to 0.1% of the total mass of the plastic film. , and the solar absorption rate of the plastic film is higher than 0.7, and the hemispherical emissivity is lower than 0.2.
所述高吸水树脂材料为聚丙烯酸盐，聚丙烯腈，改性聚乙烯醇，聚丙烯酰胺中的一种或多种组成。The superabsorbent resin material is composed of one or more of polyacrylate, polyacrylonitrile, modified polyvinyl alcohol, and polyacrylamide.
所述透水密贴层为水刺无纺布，且其面密度为10 g/m2 ~ 100 g/m2。The water-permeable dense layer is a spunlace non-woven fabric, and its surface density is 10 g/m 2 ~ 100 g/m 2 .
所述热熔胶为聚酰胺、聚酯、聚乙烯、EVA、聚氨酯中的一种或多种的混合物，且用量为0.1 g/m2 ~ 10 g/m2。The hot melt adhesive is a mixture of one or more of polyamide, polyester, polyethylene, EVA, and polyurethane, and the dosage is 0.1 g/m 2 to 10 g/m 2 .
所述水性胶由聚乙烯醇、聚乙烯醇缩甲醛、聚乙烯醇缩丁醛、聚醋酸乙烯酯、水性聚氨酯、聚丙烯酸酯、硼砂改性聚乙烯醇中的一种或多种混合物组成，且与基材的剥离强度为5N/10mm ~ 20N/10mm。The water-based glue is composed of one or more mixtures of polyvinyl alcohol, polyvinyl formal, polyvinyl butyral, polyvinyl acetate, water-based polyurethane, polyacrylate, and borax-modified polyvinyl alcohol, And the peel strength with the substrate is 5N/10mm ~ 20N/10mm.
所述高吸水树脂材料的饱和吸水量在150%~350%之间。The saturated water absorption of the superabsorbent resin material is between 150% and 350%.
所述养护膜在正常日照条件下，可提高养护膜内温度1~15℃。The curing film can increase the temperature in the curing film by 1-15°C under normal sunshine conditions.
本发明的积极效果是：The positive effects of the present invention are:
养护膜在实现保湿功能的同时避免了水分蒸发引起的热量散失，同时，在膜内复合光热转化功能材料，可进一步提升其在日照条件下的光热转换效率，使养护膜内部温度进一步升高，从而加速混凝土水化反应速率，提高混凝土早期强度。在此基础上，合适密度的无纺布提供了与混凝土基面良好的形状密贴性和合适的力学性能；优化后的剥离强度使所制备的养护膜与混凝土基面具有了良好粘接能力，并在养护结束剥离时不会留有残胶。The curing film realizes the moisturizing function and avoids the heat loss caused by water evaporation. At the same time, the composite photothermal conversion functional material in the film can further improve its photothermal conversion efficiency under sunlight conditions, and further increase the internal temperature of the curing film. high, thereby accelerating the hydration reaction rate of concrete and improving the early strength of concrete. On this basis, the non-woven fabric of suitable density provides good shape adherence with the concrete base and suitable mechanical properties; the optimized peel strength enables the prepared curing film to have good adhesion to the concrete base. , and there will be no glue residue when peeling off at the end of the curing.
具体实施方式Detailed ways
为详细说明本发明的特征及所能达到的效果，下面结合实施例和对比例做详细说明。In order to illustrate the features of the present invention and the achievable effects in detail, a detailed description is given below in conjunction with the embodiments and comparative examples.
实施例1Example 1
所述具有光热转换效果的混凝土高效保温保湿复合养护膜由具有光热转换功能的塑料膜、高吸水树脂材料和透水密贴层依次复合而成，各材料间通过热熔胶和水性胶粘结。所述塑料膜中含有0.05%的铕配合物，光热转换效率为0.8。所述高吸水树脂材料为聚丙烯酸盐。所述透水密贴层为水刺无纺布，且其面密度为20 g/m2。所述热熔胶为EVA胶，用量为0.5 g/m2。所述水性胶为聚乙烯醇缩甲醛，且与基材的剥离强度为10N/10mm。所述高吸水树脂材料的饱和吸水量在150%。The concrete high-efficiency heat-insulating and moisturizing composite curing film with light-heat conversion effect is composed of a plastic film with light-heat conversion function, a superabsorbent resin material and a water-permeable adhesive layer in turn. Knot. The plastic film contains 0.05% europium complex, and the photothermal conversion efficiency is 0.8. The superabsorbent resin material is polyacrylate. The water-permeable dense layer is a spunlace non-woven fabric, and its areal density is 20 g/m 2 . The hot melt adhesive is EVA adhesive, and the dosage is 0.5 g/m 2 . The water-based adhesive is polyvinyl formal, and the peel strength with the substrate is 10N/10mm. The saturated water absorption of the superabsorbent resin material is 150%.
实施例2Example 2
所述具有光热转换效果的混凝土高效保温保湿复合养护膜由具有光热转换功能的塑料膜、高吸水树脂材料和透水密贴层依次复合而成，各材料间通过热熔胶和水性胶粘结。所述塑料膜中含有总质量分数为0.06%的聚苯胺和聚吡咯，光热转换效率为0.8。所述高吸水树脂材料为聚丙烯酰胺。所述透水密贴层为水刺无纺布，且其面密度为80 g/m2。所述热熔胶为热塑性丁苯嵌段共聚物，用量为1 g/m2。所述水性胶由硼砂改性聚乙烯醇，且与基材的剥离强度为8N/10mm。所述高吸水树脂材料的饱和吸水量在350%。The concrete high-efficiency heat-insulating and moisturizing composite curing film with light-heat conversion effect is composed of a plastic film with light-heat conversion function, a superabsorbent resin material and a water-permeable adhesive layer in turn. Knot. The plastic film contains polyaniline and polypyrrole with a total mass fraction of 0.06%, and the photothermal conversion efficiency is 0.8. The superabsorbent resin material is polyacrylamide. The water-permeable dense layer is a spunlace non-woven fabric, and its areal density is 80 g/m 2 . The hot melt adhesive is a thermoplastic styrene-butadiene block copolymer, and the dosage is 1 g/m 2 . The water-based adhesive is modified by borax polyvinyl alcohol, and the peel strength with the substrate is 8N/10mm. The saturated water absorption of the superabsorbent resin material is 350%.
对比例1：Comparative Example 1:
所述具有光热转换效果的混凝土高效保温保湿复合养护膜由具有光热转换功能的塑料膜、高吸水树脂材料和透水密贴层依次复合而成，各材料间通过热熔胶和水性胶粘结。所述塑料膜中含有总质量分数为0.06%的聚苯胺和聚吡咯，光热转换效率为0.8。所述高吸水树脂材料为聚丙烯酰胺。所述透水密贴层为水刺无纺布，且其面密度为120 g/m2。所述热熔胶为热塑性丁苯嵌段共聚物，用量为1 g/m2。所述水性胶由硼砂改性聚乙烯醇，且与基材的剥离强度为8N/10mm。所述高吸水树脂材料的饱和吸水量在350%。The concrete high-efficiency heat-insulating and moisturizing composite curing film with light-heat conversion effect is composed of a plastic film with light-heat conversion function, a superabsorbent resin material and a water-permeable adhesive layer in turn. Knot. The plastic film contains polyaniline and polypyrrole with a total mass fraction of 0.06%, and the photothermal conversion efficiency is 0.8. The superabsorbent resin material is polyacrylamide. The water-permeable dense layer is a spunlace non-woven fabric, and its areal density is 120 g/m 2 . The hot melt adhesive is a thermoplastic styrene-butadiene block copolymer, and the dosage is 1 g/m 2 . The water-based adhesive is modified by borax polyvinyl alcohol, and the peel strength with the substrate is 8N/10mm. The saturated water absorption of the superabsorbent resin material is 350%.
对比例2：Comparative Example 2:
所述具有光热转换效果的混凝土高效保温保湿复合养护膜由具有光热转换功能的塑料膜、高吸水树脂材料和透水密贴层依次复合而成，各材料间通过热熔胶和水性胶粘结。所述塑料膜中含有总质量分数为0.06%的聚苯胺和聚吡咯，光热转换效率为0.8。所述高吸水树脂材料为聚丙烯酰胺。所述透水密贴层为水刺无纺布，且其面密度为9g/m2。所述热熔胶为热塑性丁苯嵌段共聚物，用量为1 g/m2。所述水性胶由硼砂改性聚乙烯醇，且与基材的剥离强度为8N/10mm。所述高吸水树脂材料的饱和吸水量在350%。The concrete high-efficiency heat-insulating and moisturizing composite curing film with light-heat conversion effect is composed of a plastic film with light-heat conversion function, a superabsorbent resin material and a water-permeable adhesive layer in turn. Knot. The plastic film contains polyaniline and polypyrrole with a total mass fraction of 0.06%, and the photothermal conversion efficiency is 0.8. The superabsorbent resin material is polyacrylamide. The water-permeable dense layer is a spunlace non-woven fabric, and its areal density is 9 g/m 2 . The hot melt adhesive is a thermoplastic styrene-butadiene block copolymer, and the dosage is 1 g/m 2 . The water-based adhesive is modified by borax polyvinyl alcohol, and the peel strength with the substrate is 8N/10mm. The saturated water absorption of the superabsorbent resin material is 350%.
对比例3：Comparative Example 3:
所述具有光热转换效果的混凝土高效保温保湿复合养护膜由具有光热转换功能的塑料膜、高吸水树脂材料和透水密贴层依次复合而成，各材料间通过热熔胶和水性胶粘结。所述塑料膜中含有总质量分数为0.06%的聚苯胺和聚吡咯，光热转换效率为0.8。所述高吸水树脂材料为聚丙烯酰胺。所述透水密贴层为水刺无纺布，且其面密度为80g/m2。所述热熔胶为热塑性丁苯嵌段共聚物，用量为11 g/m2。所述水性胶由硼砂改性聚乙烯醇，且与基材的剥离强度为8N/10mm。所述高吸水树脂材料的饱和吸水量在350%。The concrete high-efficiency heat-insulating and moisturizing composite curing film with light-heat conversion effect is composed of a plastic film with light-heat conversion function, a superabsorbent resin material and a water-permeable adhesive layer in turn. Knot. The plastic film contains polyaniline and polypyrrole with a total mass fraction of 0.06%, and the photothermal conversion efficiency is 0.8. The superabsorbent resin material is polyacrylamide. The water-permeable and tight adhesive layer is a spunlace non-woven fabric, and its surface density is 80 g/m 2 . The hot melt adhesive is a thermoplastic styrene-butadiene block copolymer, and the dosage is 11 g/m 2 . The water-based adhesive is modified by borax polyvinyl alcohol, and the peel strength with the substrate is 8N/10mm. The saturated water absorption of the superabsorbent resin material is 350%.
对比例4：Comparative Example 4:
所述具有光热转换效果的混凝土高效保温保湿复合养护膜由具有光热转换功能的塑料膜、高吸水树脂材料和透水密贴层依次复合而成，各材料间通过热熔胶和水性胶粘结。所述塑料膜中含有总质量分数为0.06%的聚苯胺和聚吡咯，光热转换效率为0.8。所述高吸水树脂材料为聚丙烯酰胺。所述透水密贴层为水刺无纺布，且其面密度为80g/m2。所述热熔胶为热塑性丁苯嵌段共聚物，用量为1 g/m2。所述水性胶由硼砂改性聚乙烯醇，且与基材的剥离强度为8N/10mm。所述高吸水树脂材料的饱和吸水量在100%。The concrete high-efficiency heat-insulating and moisturizing composite curing film with light-heat conversion effect is composed of a plastic film with light-heat conversion function, a superabsorbent resin material and a water-permeable adhesive layer in turn. Knot. The plastic film contains polyaniline and polypyrrole with a total mass fraction of 0.06%, and the photothermal conversion efficiency is 0.8. The superabsorbent resin material is polyacrylamide. The water-permeable and tight adhesive layer is a spunlace non-woven fabric, and its surface density is 80 g/m 2 . The hot melt adhesive is a thermoplastic styrene-butadiene block copolymer, and the dosage is 1 g/m 2 . The water-based adhesive is modified by borax polyvinyl alcohol, and the peel strength with the substrate is 8N/10mm. The saturated water absorption of the superabsorbent resin material is 100%.
对比例5：Comparative Example 5:
所述具有光热转换效果的混凝土高效保温保湿复合养护膜由具有光热转换功能的塑料膜、高吸水树脂材料和透水密贴层依次复合而成，各材料间通过热熔胶和水性胶粘结。所述塑料膜中含有总质量分数为0.06%的聚苯胺和聚吡咯，光热转换效率为0.8。所述高吸水树脂材料为聚丙烯酰胺。所述透水密贴层为水刺无纺布，且其面密度为80g/m2。所述热熔胶为热塑性丁苯嵌段共聚物，用量为1 g/m2。所述水性胶由硼砂改性聚乙烯醇，且与基材的剥离强度为8N/10mm。所述高吸水树脂材料的饱和吸水量在400%。The concrete high-efficiency heat-insulating and moisturizing composite curing film with light-heat conversion effect is composed of a plastic film with light-heat conversion function, a superabsorbent resin material and a water-permeable adhesive layer in turn. Knot. The plastic film contains polyaniline and polypyrrole with a total mass fraction of 0.06%, and the photothermal conversion efficiency is 0.8. The superabsorbent resin material is polyacrylamide. The water-permeable and tight adhesive layer is a spunlace non-woven fabric, and its surface density is 80 g/m 2 . The hot melt adhesive is a thermoplastic styrene-butadiene block copolymer, and the dosage is 1 g/m 2 . The water-based adhesive is modified by borax polyvinyl alcohol, and the peel strength with the substrate is 8N/10mm. The saturated water absorption of the superabsorbent resin material is 400%.
对比例6：Comparative Example 6:
所述具有光热转换效果的混凝土高效保温保湿复合养护膜由具有光热转换功能的塑料膜、高吸水树脂材料和透水密贴层依次复合而成，各材料间通过热熔胶和水性胶粘结。所述塑料膜中含有0.05%的碳黑。所述高吸水树脂材料为聚丙烯酸盐。所述透水密贴层为水刺无纺布，且其面密度为20 g/m2。所述热熔胶为EVA胶，用量为0.5 g/m2。所述水性胶为聚乙烯醇缩甲醛，且与基材的剥离强度为10N/10mm。所述高吸水树脂材料的饱和吸水量在150%。The concrete high-efficiency heat-insulating and moisturizing composite curing film with light-heat conversion effect is composed of a plastic film with light-heat conversion function, a superabsorbent resin material and a water-permeable adhesive layer in turn. Knot. The plastic film contains 0.05% carbon black. The superabsorbent resin material is polyacrylate. The water-permeable dense layer is a spunlace non-woven fabric, and its areal density is 20 g/m 2 . The hot melt adhesive is EVA adhesive, and the dosage is 0.5 g/m 2 . The water-based adhesive is polyvinyl formal, and the peel strength with the substrate is 10N/10mm. The saturated water absorption of the superabsorbent resin material is 150%.
在同一批混凝土成型试块后，在其表面包覆不同的养护膜，并置于室外，经28天相同养护处理后，得到如下表的结果：After the same batch of concrete is formed, the surface is covered with different curing films and placed outdoors. After 28 days of the same curing treatment, the results in the following table are obtained:
由实施例2和对比例1结果可知，对比例1中使用的无纺布面密度过大，对平面结构的养护效果良好，在立面养护时易因重量过大而发生养护膜的掉落。From the results of Example 2 and Comparative Example 1, it can be seen that the surface density of the non-woven fabric used in Comparative Example 1 is too large, and the maintenance effect on the plane structure is good, and the maintenance film is prone to fall due to excessive weight during facade maintenance. .
由实施例2和对比例2结果可知，对比例2中使用的无纺布面密度过大，对保湿养护效果尚可，但SAP从无纺布中透出较多，在养护期结束后混凝土表面残留较多高吸水树脂材料，不易清理。From the results of Example 2 and Comparative Example 2, it can be seen that the surface density of the non-woven fabric used in Comparative Example 2 is too large, and the effect of moisturizing and curing is acceptable, but SAP leaks out from the non-woven fabric a lot, and the concrete after the curing period is over. There is a lot of superabsorbent resin material remaining on the surface, which is not easy to clean.
由实施例2和对比例3结果可知，对比例3中使用的热熔胶量过多，导致养护膜透水性下降，反而降低了整体养护效果。From the results of Example 2 and Comparative Example 3, it can be seen that the amount of hot melt adhesive used in Comparative Example 3 is too large, which leads to a decrease in the water permeability of the curing film, which reduces the overall curing effect.
由实施例2和对比例4结果可知，对比例4中使用的高吸水树脂材料饱和吸水量过低，导致养护膜储释水功能下降，降低了保湿养护效果。It can be seen from the results of Example 2 and Comparative Example 4 that the saturated water absorption of the superabsorbent resin material used in Comparative Example 4 is too low, which leads to a decrease in the water storage and release function of the curing film, and reduces the moisturizing and curing effect.
由实施例2和对比例5结果可知，对比例5中使用的高吸水树脂材料饱和吸水量过高，对平面结构的养护效果良好，在立面养护时易因重量过大而发生养护膜的掉落。From the results of Example 2 and Comparative Example 5, it can be seen that the saturated water absorption of the superabsorbent resin material used in Comparative Example 5 is too high, and the maintenance effect on the plane structure is good, and the maintenance film is easy to occur due to excessive weight during the maintenance of the facade. fall.
由实施例1和对比例6结果可知，对比例6中使用碳黑导致养护膜半球发射率较高，降低了养护膜在夜间的保温养护效果。It can be seen from the results of Example 1 and Comparative Example 6 that the use of carbon black in Comparative Example 6 leads to a higher hemispheric emissivity of the curing film, which reduces the thermal insulation and curing effect of the curing film at night.
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