CN103507123B - Wood interlayer thermoplastic composite material and preparing method thereof - Google Patents
Wood interlayer thermoplastic composite material and preparing method thereof Download PDFInfo
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- CN103507123B CN103507123B CN201210201989.3A CN201210201989A CN103507123B CN 103507123 B CN103507123 B CN 103507123B CN 201210201989 A CN201210201989 A CN 201210201989A CN 103507123 B CN103507123 B CN 103507123B
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Abstract
The invention relates to a wood interlayer thermoplastic composite material and a preparing method thereof. The composite material is composed of five layers of materials which are an upper panel, a macromolecular adhesive film, a core material, a macromolecular adhesive film and a lower panel in sequence from top to bottom. Glass fiber reinforcement polypropylene base prepreg tape is laid up according to 0 degree/90 degrees/0 degree, firstly pressed in a hot mode, then pressed in a cold mode through a pressure roller and a rolling device, and formed in a composite mode, so that the panel materials are obtained. The macromolecular adhesive films are arranged between the core material and the upper panel, and between the core material and the lower panel, hot-pressing and gluing are carried out at the temperature of 175-190 DEG C, at the beginning stage, air is exhausted for one time every two minutes, and the air is exhausted for three times to obtain the product. Compared with the prior art, the wood interlayer thermoplastic composite material is high in chemical strength, long in service life, waterproof, mothproof, good in wholesomeness, easy to clean and corrosion-resistant.
Description
Technical field
The present invention relates to a kind of wood moulding bonded composite, especially relate to a kind of wood interlayer thermoplastic composite and
Its preparation method.
Background technology
With social fast development, the city-building speed also demand to building template in fast development, building industry
It is consequently increased rapidly.Current building template is mainly traditional Wood construction formwork and bamboo matter building template, and goes out on a small quantity
Existing plastic building template.Simultaneously with the development of carrier, wagon-floor is also increasing to the demand of timber.
The more raw speed of timber is certain, and the substantial amounts of consumption to timber says it is progressive of the epoch that do not meet from the angle of environmental protection
The trend of exhibition.And the performance of wherein Wood construction formwork is low, water proofing property and mould proof row are poor, occur expanding layering now after water suction
As reusing number of times few (less than 5 times).The mothproof performance of the wooden waterproof slab of lorry is bad, and unrepairable after damage.For
These problems of Wood construction formwork and the presence of wooden base plate at present, the invention provides a kind of wood moulding bonded composite, tool
There are the mothproof performance of certain waterproof, preferable mechanical property, the excellent properties such as recoverability after damage.
Content of the invention
The purpose of the present invention is exactly to overcome the defect of above-mentioned prior art presence to provide a kind of mechanical strength height, make
With life-span length, waterproof, mothproof, good, easy to clean, corrosion-resistant, the recoverable wood interlayer thermoplastic composite of wholesomeness and its
Preparation method.
The purpose of the present invention can be achieved through the following technical solutions: a kind of wood interlayer thermoplastic composite, its
It is characterised by, this composite is made up of five layer materials, be followed successively by top panel, macromolecule felted-membrane, core, high score from top to bottom
Sub- adhesive film and lower panel.
Above described, the material of plate and lower panel is the behavior of polypropylene composites of glass fiber reinforcement, glass fibre
Weight percentage ranges are 40%-60%, and fibre fineness scope used is 150-9600tex.
Described macromolecule felted-membrane is polypropylene-base macromolecule felted-membrane, and the one side of this macromolecule felted-membrane is polarity
, with core bonding, another side is nonpolar, with top panel or lower panel bonding.
Described core is wooden plywood, selects vertically and horizontally the plywood that laying is obtained by a certain percentage, typically wooden
The fibre orientation number of plies in the vertical is more than the number of plies transversely, and this and material are high to the performance requirement of length direction in use
It is corresponding in the performance of width, therefore improve the utilization rate of material.
Above described, the thickness of plate or lower panel is 1mm-10mm, and the thickness of core is 7-25mm.
A kind of preparation method of wood interlayer thermoplastic composite is it is characterised in that the method comprises the following steps:
(1) preparation of top panel and lower panel: glass fiber reinforced polypropylene base prepreg tape is carried out according to 0 °/90 °/0 °
Laying, composite molding of colding pressing after first hot pressing under pressure roll and rolling device, wherein hot pressing temperature is 190-200 DEG C, hot pressing pressure
Power is 2.5-3mpa, and hot pressing time is 10-15min, and pressure of colding pressing edges up 3mpa from 1.5mpa, and the time of colding pressing is 15-
20min, prepared panel material；
(2) put into macromolecule felted-membrane between core and top panel, following flaggy, at a temperature of 175 DEG C -190 DEG C
Carry out thermo-compression bonding, start simultaneously at the stage, once, aerofluxuss number of times is 3 times for aerofluxuss at intervals of two minutes, and pressure is 2.5-3.5mpa, heat
The pressure time is 10-20min, continues, after hot pressing, the 20min that colds pressing, and pressure of colding pressing is 1.5mpa-3mpa, obtains product.
Step (1) described glass fiber reinforced polypropylene base prepreg tape is obtained by the following method: by continuous glass fibre
Impregnate fully with polypropylene melt melt resin in recombiner unit through traction unit and after preheating after uniformly spreading out, be then passed through flattening list
The continuous glass fibre single-oriented presoaked belts that the effect of unit and rolling unit is obtained.
Compared to existing technology, the advantage of the wood interlayer thermoplastic composite that the present invention is obtained is:
(1) what the present invention was obtained has mechanical strength height, long service life, waterproof, easily based on wood interlayer composite
Cleaning, corrosion-resistant, good, the recoverable advantage of good weatherability, nail-holding ability.
(2) present invention makes panel using polypropylene-base macromolecule both sexes adhesive film as the hot pressing complex technique of tack coat
Higher with the adhesion strength of core material.
(3) in the present invention panel material using the enhanced coiled material of continuous glass fibre so that panel material have more excellent
Intensity and modulus, make thermoplastic sandwich composite material have higher cost performance.
(4) panel material in the present invention and core all can be according to using the longitudinal strengths making material by ply sequence
Higher than transverse strength so that the material of gained can obtain maximized use value.
(5) the wood interlayer thermoplastic composite that the present invention is obtained, has stronger design, can be tied by change
The selection of structure design and material requires reaching the specific impact of performance.
Brief description
Fig. 1 is the structural representation of product of the present invention.
Wherein 1 is top panel, 2 is the first polymer bond layer, 3 is core, 4 is the second polymer bond layer, 5 is following
Plate.
Specific embodiment
Embodiment 1
Panel material adopts the behavior of polypropylene composites of continuous lod, and core is wooden plywood's material, and thickness is
The percetage by weight of the glass fibre in 18mm, wherein panel material is about 50%, and plate thickness is 2mm.
The preparation of glass fiber reinforced thermoplastics composite upper and lower panel: by pre- to glass fiber reinforced polypropylene base
Leaching band carries out laying according to the mechanical property requirements of concrete application according to 0 °/90 °/0 °, and wherein 2: 1 ratio has met building mould
Mechanical strength in plate length is higher than the applicable cases of width, makes material have higher utilization rate.Then in certain heat
Carry out composite molding, wherein hot pressing temperature is 180 DEG C, hot pressing pressure is 3mpa, hot pressing time under the conditions of pressure cold-press process
For 10min, cold pressing pressure 3mpa, and the time of colding pressing is obtained panel material for 20min.
Tack coat is polypropylene-base macromolecule felted-membrane, and the one side of this macromolecule felted-membrane is polarity, and another side is non-pole
Property.The polarity one side of macromolecule felted-membrane and wooden core bond, and nonpolar one side is bondd with fiberglass reinforced sheet material.In a cover half
Under the conditions of tool, panel, macromolecule felted-membrane and core are entered heat pressure adhesive.Hot pressing temperature is 185 DEG C, and pressure is about 2.5mpa, heat
The pressure time is 10min, continues, after hot pressing, the 10min that colds pressing, and pressure of colding pressing is 2.5mpa, to reach preferable bonding effect
Really.The bending property of gained wood interlayer composite is shown in Table 1.
Embodiment 2
Panel material adopts the behavior of polypropylene composites of continuous lod, and core is wooden plywood's material, and thickness is
The percetage by weight of the glass fibre in 25mm, wherein panel material is about 55%, and plate thickness is 3mm.
The preparation of glass fiber reinforced thermoplastics composite upper and lower panel: by pre- to glass fiber reinforced polypropylene base
Leaching band carries out laying according to the mechanical property requirements of concrete application according to 0 °/90 °/0 °, and wherein 2: 1 ratio is to have met use
Mechanical strength in middle length is higher than the applicable cases of width, makes material have higher utilization rate.Then in certain heat
Carry out composite molding, wherein hot pressing temperature is 180 DEG C, hot pressing pressure is 3mpa, hot pressing time under the conditions of pressure cold-press process
For 10min, pressure of colding pressing is 3mpa, and the time of colding pressing is obtained panel material for 20min.
Tack coat is polypropylene-base macromolecule felted-membrane, and the one side of this macromolecule felted-membrane is polarity, and another side is non-pole
Property.The polarity one side of macromolecule felted-membrane and wooden core bond, and nonpolar one side is bondd with fiberglass reinforced sheet material.In a cover half
Under the conditions of tool, panel, macromolecule felted-membrane and core are entered heat pressure adhesive.Hot pressing temperature is 185 DEG C, and pressure is about 3mpa, hot pressing
Time is 10min, continues, after hot pressing, the 10min that colds pressing, and pressure of colding pressing is 3mpa, reaching preferable bond effect.Institute
The bending property obtaining wood interlayer composite is shown in Table 1.
Table 1
| Thickness (mm) | Bending strength (mpa) | Bending moduluses (gpa) | Maximum, force (n) | |
| Embodiment 1 | 18 | 53 | 5.9 | 1180 |
| Embodiment 2 | 25 | 108 | 6.7 | 2500 |
Embodiment 3
A kind of preparation method of wood interlayer thermoplastic composite is it is characterised in that the method comprises the following steps:
(1) in recombiner unit and polypropylene fusion tree through traction unit and after preheating after continuous glass fibre uniformly being spread out
Fat dipping fully, is then passed through flattening the continuous glass fibre single-oriented presoaked belts that the effect of unit and rolling unit is obtained, should
In prepreg tape, the weight percentage ranges of glass fibre are 40%, and fibre fineness scope used is 150tex.
(2) preparation of top panel and lower panel: glass fiber reinforced polypropylene base prepreg tape is carried out according to 0 °/90 °/0 °
Laying, composite molding of colding pressing after first hot pressing under pressure roll and rolling device, wherein hot pressing temperature is 190 DEG C, and hot pressing pressure is
2.5mpa, hot pressing time is 15min, and pressure of colding pressing edges up 3mpa from 1.5mpa, and the time of colding pressing is 15min, prepared panel material
Material；
(3) core is wooden plywood, selects vertically and horizontally the plywood that laying is obtained by a certain percentage, general wood fibre
The orientation number of plies in the vertical is more than the number of plies transversely, and this and material are higher than width to the performance requirement of length direction in use
The performance in degree direction is corresponding, therefore improves the utilization rate of material；
(4) put into macromolecule felted-membrane between core and top panel, following flaggy, macromolecule felted-membrane is polypropylene-base
Macromolecule felted-membrane, the one side of this macromolecule felted-membrane is polarity, and with core bonding, another side is nonpolar, with top panel
Or lower panel bonding, carry out thermo-compression bonding at a temperature of 175 DEG C, start simultaneously at the stage, at intervals of two minutes aerofluxuss once, aerofluxuss
Number of times is 3 times, and pressure is 3mpa, and hot pressing time is 20min, continues, after hot pressing, the 20min that colds pressing, and pressure of colding pressing is 1.5mpa,
Obtain product, as described in Figure 1, products obtained therefrom is followed successively by top panel 1, the first macromolecule felted-membrane 2, core 3, second from top to bottom
Macromolecule felted-membrane 4, lower panel 5, the thickness of this product top panel is 1mm, and the thickness of lower panel is 1mm, and the thickness of core is
7mm.
Embodiment 4
A kind of preparation method of wood interlayer thermoplastic composite is it is characterised in that the method comprises the following steps:
(1) in recombiner unit and polypropylene fusion tree through traction unit and after preheating after continuous glass fibre uniformly being spread out
Fat dipping fully, is then passed through flattening the continuous glass fibre single-oriented presoaked belts that the effect of unit and rolling unit is obtained, should
In prepreg tape, the weight percentage ranges of glass fibre are 60%, and fibre fineness scope used is 9600tex.
(2) preparation of top panel and lower panel: glass fiber reinforced polypropylene base prepreg tape is carried out according to 0 °/90 °/0 °
Laying, composite molding of colding pressing after first hot pressing under pressure roll and rolling device, wherein hot pressing temperature is 200 DEG C, and hot pressing pressure is
3mpa, hot pressing time is 10min, and pressure of colding pressing edges up 3mpa from 1.5mpa, and the time of colding pressing is 20min, prepared panel material；
(3) core is wooden plywood, selects vertically and horizontally the plywood that laying is obtained by a certain percentage, general wood fibre
The orientation number of plies in the vertical is more than the number of plies transversely, and this and material are higher than width to the performance requirement of length direction in use
The performance in degree direction is corresponding, therefore improves the utilization rate of material；
(4) put into macromolecule felted-membrane between core and top panel, following flaggy, macromolecule felted-membrane is polypropylene-base
Macromolecule felted-membrane, the one side of this macromolecule felted-membrane is polarity, and with core bonding, another side is nonpolar, with top panel
Or lower panel bonding, carry out thermo-compression bonding at a temperature of 190 DEG C, start simultaneously at the stage, at intervals of two minutes aerofluxuss once, aerofluxuss
Number of times is 3 times, and pressure is 3.5mpa, and hot pressing time is 10min, continues, after hot pressing, the 20min that colds pressing, and pressure of colding pressing is 3mpa,
Obtain product, the thickness of this product top panel is 10mm, the thickness of lower panel is 10mm, the thickness of core is 25mm.
Claims (6)
1. a kind of wood interlayer thermoplastic composite is it is characterised in that this composite is made up of five layer materials, from top to bottom
It is followed successively by top panel, macromolecule felted-membrane, core, macromolecule felted-membrane and lower panel, described core is wooden plywood；
Described composite passes through following steps and is obtained:
(1) preparation of top panel and lower panel: glass fiber reinforced polypropylene base prepreg tape is spread according to 0 °/90 °/0 °
Layer, composite molding of colding pressing after first hot pressing under pressure roll and rolling device, wherein hot pressing temperature is 190-200 DEG C, hot pressing pressure
For 2.5-3mpa, hot pressing time is 10-15min, and pressure of colding pressing edges up 3mpa from 1.5mpa, and the time of colding pressing is 15-20min,
Prepared panel material；
(2) put into macromolecule felted-membrane between core and top panel, following flaggy, carry out at a temperature of 175 DEG C -190 DEG C
Thermo-compression bonding, starts simultaneously at the stage, and once, aerofluxuss number of times is 3 times, and pressure is 2.5-3.5mpa, during hot pressing for aerofluxuss at intervals of two minutes
Between be 10-20min, continue, after hot pressing, the 20min that colds pressing, pressure of colding pressing be 1.5mpa-3mpa, obtain product.
2. a kind of wood interlayer thermoplastic composite according to claim 1 it is characterised in that above described plate and
The material of lower panel is the behavior of polypropylene composites of glass fiber reinforcement, and the weight percentage ranges of glass fibre are 40%-
60%, fibre fineness scope used is 150-9600tex.
3. a kind of wood interlayer thermoplastic composite according to claim 1 is it is characterised in that described macromolecule glues
Conjunctiva is polypropylene-base macromolecule felted-membrane, and the one side of this macromolecule felted-membrane is polarity, and with core bonding, another side is non-
Polarity, with top panel or lower panel bonding.
4. a kind of wood interlayer thermoplastic composite according to claim 1 it is characterised in that above described plate or
The thickness of lower panel is 1mm-10mm, and the thickness of core is 7-25mm.
5. a kind of preparation method of wood interlayer thermoplastic composite as claimed in claim 1 is it is characterised in that the method
Comprise the following steps:
(1) preparation of top panel and lower panel: glass fiber reinforced polypropylene base prepreg tape is spread according to 0 °/90 °/0 °
Layer, composite molding of colding pressing after first hot pressing under pressure roll and rolling device, wherein hot pressing temperature is 190-200 DEG C, hot pressing pressure
For 2.5-3mpa, hot pressing time is 10-15min, and pressure of colding pressing edges up 3mpa from 1.5mpa, and the time of colding pressing is 15-20min,
Prepared panel material；
(2) put into macromolecule felted-membrane between core and top panel, following flaggy, carry out at a temperature of 175 DEG C -190 DEG C
Thermo-compression bonding, starts simultaneously at the stage, and once, aerofluxuss number of times is 3 times, and pressure is 2.5-3.5mpa, during hot pressing for aerofluxuss at intervals of two minutes
Between be 10-20min, continue, after hot pressing, the 20min that colds pressing, pressure of colding pressing be 1.5mpa-3mpa, obtain product.
6. a kind of preparation method of wood interlayer thermoplastic composite according to claim 5 is it is characterised in that step
(1) described glass fiber reinforced polypropylene base prepreg tape is obtained by the following method: warp after continuous glass fibre is uniformly spread out
Traction unit and after preheating in recombiner unit with polypropylene melt melt resin dipping fully, be then passed through flattening unit and rolling unit
Effect be obtained continuous glass fibre single-oriented presoaked belts.
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| CN107521186A (en) * | 2017-09-18 | 2017-12-29 | 张家港市圣达汽车内饰材料有限公司 | A kind of special process method of GMT thermoplastic composites polyester fiber board |
| CN109953549B (en) * | 2017-12-14 | 2023-12-26 | 广州金发碳纤维新材料发展有限公司 | Zoned thermoplastic composite bed board and manufacturing method thereof |
| CN112196176B (en) * | 2020-09-27 | 2022-06-17 | 衡阳凌云特种材料有限公司 | Multilayer composite corrosion-resistant heat-insulating material and preparation method thereof |
| CN114919266B (en) * | 2022-05-26 | 2024-05-03 | 浙江清华长三角军民协同创新研究院(嘉兴) | Manufacturing method of composite sandwich structure of asymmetric panel |
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| US20070202314A1 (en) * | 2004-04-30 | 2007-08-30 | Sambark Co., Ltd | Thermoplastic Compound Plate-Shaped Material, Method For Manufacturing And Articles Manufactured Using The Same |
| DE102006057822A1 (en) * | 2006-12-06 | 2008-06-26 | Basell Poliolefine Italia S.R.L. | Solvent-free multilayer laminated material for production of, e.g. floor coverings, includes thermoplastic polymers, flexible material, fibrous intermediate layer comprising plastic and adhesive material, and metal, plastic, or wood |
| WO2009022022A1 (en) * | 2007-07-27 | 2009-02-19 | Ulma C Y E, S. Coop. | Method and unit for producing polymer sandwich panels and resulting panel |
| JP5124263B2 (en) * | 2007-12-27 | 2013-01-23 | Ｄｉｃ株式会社 | Woody laminated material and method for producing the same |
| CN101708614B (en) * | 2009-11-25 | 2011-09-28 | 宜兴森诺塑胶复合制品有限公司 | High-intensity wood plastic composite board and fabrication method thereof |
| CN102127964B (en) * | 2011-01-05 | 2012-07-25 | 江苏奇一科技有限公司 | Building template reinforced by composite of continuous fiber plastic coated belt material and preparation method thereof |
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Denomination of invention: Wood interlayer thermoplastic composite material and preparing method thereof Effective date of registration: 20191202 Granted publication date: 20170125 Pledgee: Chuzhou economic and Technological Development Corporation Pledgor: Shanghai Jieshijie New Materials (Group) Co., Ltd. Registration number: Y2019980000815 |
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