CN111531995A - High-strength light board and preparation method thereof - Google Patents

High-strength light board and preparation method thereof Download PDF

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Publication number
CN111531995A
CN111531995A CN202010343308.1A CN202010343308A CN111531995A CN 111531995 A CN111531995 A CN 111531995A CN 202010343308 A CN202010343308 A CN 202010343308A CN 111531995 A CN111531995 A CN 111531995A
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China
Prior art keywords
parts
layer
plate
graphene
panel
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CN202010343308.1A
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Chinese (zh)
Inventor
李云全
尚晓敏
朱道峰
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Anhui Zhongfu New Material Technology Co ltd
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Anhui Zhongfu New Material Technology Co ltd
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Priority to CN202010343308.1A priority Critical patent/CN111531995A/en
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    • 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
    • B32B5/18—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 features of a layer of foamed material
    • B32B17/064—
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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  • Polymers & Plastics (AREA)
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Abstract

The invention provides a high-strength light plate and a preparation method thereof, wherein the plate sequentially comprises plate surface layers and foam layers clamped by the plate surface layers, and the plate is prepared by sequentially laminating and hot-pressing the foam layers clamped by the two plate surface layers; the panel top layer orientation one side on foam layer has the stiffening rib, in the stiffening rib embedding foam layer, the panel top layer has high strength, high mechanical modulus and abrasion resistance, the foam level is in between two top layers, and foam and elastic material can improve the deformability of fibrous layer to alleviate inlayer and skin because the stress difference that the radius difference brought buckles, improve the cohesion between the panel, the stiffening rib can improve the mechanical strength and the anti buckling performance of panel, and in the stiffening rib embedding foam layer, can improve the cohesion between each layer, avoid the fracture between the layer, improve the life of panel.

Description

High-strength light board and preparation method thereof
Technical Field
The invention relates to a high-strength light plate and a preparation method thereof.
Background
The plastic building template is a new product after a wood template, a steel template and a bamboo plywood, is a novel environment-friendly building material which uses plastics to replace wood and uses plastics to replace steel and saves energy, has the advantages of recoverability, corrosion resistance, good demoulding performance, repeated use and the like, adopts a skinning foam process, has high surface flatness, can meet the requirements of a dry wall after concrete is poured, and does not need secondary plastering treatment on the wall surface. Building a template: the template product is rapidly popularized and developed in developed countries and regions such as America, Germany, Japan and the like, and a house built by the building template is environment-friendly and energy-saving. Its advantages are saving wood; the construction is convenient and fast, and has superiority in safety and other aspects; the building template is not required to be maintained and can be recycled, so that the production cost can be greatly reduced, and a plurality of key problems in engineering can be solved.
The composite material has a good market prospect, has an increasing market application share in various fields, has an international development trend, becomes one of national economic prop industries in the coming years, and has a very wide product application market.
Disclosure of Invention
The invention provides a high-strength light plate and a preparation method thereof, wherein the plate sequentially comprises plate surface layers and foam layers clamped by the plate surface layers, and the plate is prepared by sequentially laminating and hot-pressing the foam layers clamped by the two plate surface layers; the panel top layer orientation one side on foam layer has the stiffening rib, in the stiffening rib embedding foam layer, the panel top layer has high strength, high mechanical modulus and abrasion resistance, the foam level is in between two top layers, and foam and elastic material can improve the deformability of fibrous layer to alleviate inlayer and skin because the stress difference that the radius difference brought buckles, improve the cohesion between the panel, the stiffening rib can improve the mechanical strength and the anti buckling performance of panel, and in the stiffening rib embedding foam layer, can improve the cohesion between each layer, avoid the fracture between the layer, improve the life of panel.
The specific scheme is as follows:
a high-strength lightweight board is characterized in that: the plate sequentially comprises a plate surface layer and a foam layer clamped by the plate surface layer, the plate is prepared by sequentially laminating and hot-pressing the two plate surface layers and the foam layer clamped by the two plate surface layers, and a reinforcing rib is arranged on one side of the plate surface layer facing the foam layer and embedded into the foam layer;
the surface layer of the plate consists of the following components: 170 parts of graphene/glass composite fiber, 20-25 parts of epoxy resin, 35-45 parts of polyvinyl chloride, 15-20 parts of polyethylene, 4-8 parts of a copolymer of maleic anhydride and methyl acrylate, 1-3 parts of an acrylonitrile-styrene-butadiene copolymer, 1-3 parts of p-phenylenediamine, 15-20 parts of calcium stearate, 5-10 parts of zinc oxide, 10-15 parts of titanium dioxide and 20-25 parts of chloroprene rubber;
the foam layer consists of the following components: 60-70 parts of PVC resin, 8-12 parts of polypropylene foaming agent, 18-22 parts of polybutylene terephthalate, 8-10 parts of pentaerythritol bisdimethylsilicate, 5-8 parts of maleic anhydride grafted polyethylene, 8-10 parts of polyethylene octene co-elastomer and 18-22 parts of talcum powder.
Further, the surface layer of the plate consists of the following components: 160 parts of graphene/glass composite fiber, 26 parts of epoxy resin, 40 parts of polyvinyl chloride, 17 parts of polyethylene, 6 parts of a copolymer of maleic anhydride and methyl acrylate, 2 parts of an acrylonitrile-styrene-butadiene copolymer, 2 parts of p-phenylenediamine, 18 parts of calcium stearate, 8 parts of zinc oxide, 12 parts of titanium dioxide and 22 parts of chloroprene rubber.
Further, the foam layer is composed of the following components: 65 parts of PVC resin, 10 parts of polypropylene foaming agent, 20 parts of polybutylene terephthalate, 9 parts of pentaerythritol bis-dimethyl silicate, 5 parts of maleic anhydride grafted polyethylene, 9 parts of polyethylene octene co-elastomer and 20 parts of talcum powder.
Furthermore, the reinforcing ribs are a plurality of ribs arranged in parallel, and the ribs extend along the same direction.
Furthermore, the included angle of the extending direction of the reinforcing ribs on the surface layers of the plates on the two side surfaces of the plates is a right angle.
Further, the graphene/glass composite fiber is prepared by the following method: (1) mixing the microporous glass fiber with sodium carboxymethylcellulose, adding graphene, dispersing in acetone, uniformly stirring, transferring to a vacuum heating kettle, pressurizing to 30MPa at 85 ℃, standing for 1h, filtering and drying to obtain graphene-loaded glass fiber; (2) soaking the graphene-loaded glass fiber prepared in the step (1) in a barium nitrate solution with the mass concentration of 40% for 1h, taking out the glass fiber, transferring the glass fiber into a ammonium dihydrogen phosphate solution with the mass concentration of 20%, standing, and generating barium phosphate and barium hydrogen phosphate crystal precipitates in micropores of the glass fiber, so that barium phosphate and barium hydrogen phosphate particles are assembled in internal pores of the glass fiber to encapsulate graphene, thereby forming the graphene/glass composite fiber.
Further, a preparation method for preparing the plate comprises the steps of respectively feeding raw materials of each layer of the plate into a double-screw extruder, then advancing the melt to a screen changer, and then reaching a distributor; and the material processed by the distributor enters a die, is shaped in a shaping table, is transferred to a cooling bracket for cooling through a traction device, is transferred to a slitting saw for slitting through the traction device, is transversely cut through a transverse cutting saw platform, and is moved out from a conveying platform, so that the forming of each layer is completed, and then the layers are sequentially stacked and hot-pressed, so that the reinforcing ribs are embedded into the foam layer, and the plate is obtained. The thickness of each layer is not particularly required, and can be adjusted according to actual needs.
The invention has the following beneficial effects:
1) the surface layer of the plate has high strength, high mechanical modulus and wear resistance.
2) The foam layer is located between the two surface layers, and the foam material and the elastic material can improve the deformation capacity of the fiber layer, so that the stress difference caused by different bending radiuses of the inner layer and the outer layer is relieved, and the binding force between the plates is improved.
3) The reinforcing ribs can improve the mechanical strength and the bending resistance of the plate, and the reinforcing ribs are embedded into the foam layers, so that the binding force between layers can be improved, interlayer cracking is avoided, and the service life of the plate is prolonged.
4) The surface layer of the plate contains the self-made graphene/glass composite fiber, the graphene/glass composite fiber is high in hydrophilicity and dispersion performance, a fiber network can be formed in the surface layer of the plate, and the mechanical performance of the plate can be greatly improved.
5) The different components are arranged according to the different requirements of each layer, the three layers can be stably jointed in the hot pressing process, the mechanical strength of the composite board is enhanced by compounding the three layers, and the ageing resistance and the temperature resistance of the board are improved.
Detailed Description
The present invention will be described in more detail below with reference to specific examples, but the scope of the present invention is not limited to these examples.
Examples
The high-strength light plate is prepared by respectively putting raw materials of each layer of the plate into a double-screw extruder, then pushing a melt into a screen changer and then reaching a distributor; and the material treated by the distributor enters a die, is shaped in a shaping table, is transferred to a cooling bracket through a traction device for cooling, is transferred to a slitting saw for slitting through the traction device, is transversely cut through a transverse cutting saw platform, and is moved out from a conveying platform, so that the forming of each layer is completed, and then the layers are sequentially laminated and hot-pressed according to the sequence to obtain the plate.
The foam layer thickness on panel top layer, foam layer are 3mm, 6mm respectively, the height of the stiffening rib on panel top layer is 2mm, and the interval is 5mm, and the contained angle of the extending direction of the stiffening rib on panel top layer on panel both sides face is the right angle.
The graphene/glass composite fiber is prepared by the following method: (1) mixing the microporous glass fiber with sodium carboxymethylcellulose, adding graphene, dispersing in acetone, uniformly stirring, transferring to a vacuum heating kettle, pressurizing to 30MPa at 85 ℃, standing for 1h, filtering and drying to obtain graphene-loaded glass fiber; (2) soaking the graphene-loaded glass fiber prepared in the step (1) in a barium nitrate solution with the mass concentration of 40% for 1h, taking out the glass fiber, transferring the glass fiber into a ammonium dihydrogen phosphate solution with the mass concentration of 20%, standing, and generating barium phosphate and barium hydrogen phosphate crystal precipitates in micropores of the glass fiber, so that barium phosphate and barium hydrogen phosphate particles are assembled in internal pores of the glass fiber to encapsulate graphene, thereby forming the graphene/glass composite fiber.
Example 1
The surface layer of the plate consists of the following components: 150 parts of graphene/glass composite fiber, 20 parts of epoxy resin, 35 parts of polyvinyl chloride, 15 parts of polyethylene, 4 parts of a copolymer of maleic anhydride and methyl acrylate, 1 part of an acrylonitrile-styrene-butadiene copolymer, 1 part of p-phenylenediamine, 15 parts of calcium stearate, 5 parts of zinc oxide, 10 parts of titanium dioxide and 20 parts of chloroprene rubber;
the foam layer consists of the following components: 60 parts of PVC resin, 8 parts of polypropylene foaming agent, 18 parts of polybutylene terephthalate, 8 parts of pentaerythritol bisdimethylsilicate, 5 parts of maleic anhydride grafted polyethylene, 8 parts of polyethylene octene co-elastomer and 18 parts of talcum powder.
Example 2
The surface layer of the plate consists of the following components: 170 parts of graphene/glass composite fiber, 25 parts of epoxy resin, 45 parts of polyvinyl chloride, 20 parts of polyethylene, 8 parts of a copolymer of maleic anhydride and methyl acrylate, 3 parts of an acrylonitrile-styrene-butadiene copolymer, 3 parts of p-phenylenediamine, 20 parts of calcium stearate, 10 parts of zinc oxide, 15 parts of titanium dioxide and 25 parts of chloroprene rubber;
the foam layer consists of the following components: 70 parts of PVC resin, 12 parts of polypropylene foaming agent, 22 parts of polybutylene terephthalate, 10 parts of pentaerythritol bisdimethylsilicate, 8 parts of maleic anhydride grafted polyethylene, 10 parts of polyethylene octene co-elastomer and 22 parts of talcum powder.
Example 3
The surface layer of the plate consists of the following components: 160 parts of graphene/glass composite fiber, 26 parts of epoxy resin, 40 parts of polyvinyl chloride, 17 parts of polyethylene, 6 parts of a copolymer of maleic anhydride and methyl acrylate, 2 parts of an acrylonitrile-styrene-butadiene copolymer, 2 parts of p-phenylenediamine, 18 parts of calcium stearate, 8 parts of zinc oxide, 12 parts of titanium dioxide and 22 parts of chloroprene rubber.
The foam layer consists of the following components: 65 parts of PVC resin, 10 parts of polypropylene foaming agent, 20 parts of polybutylene terephthalate, 9 parts of pentaerythritol bis-dimethyl silicate, 5 parts of maleic anhydride grafted polyethylene, 9 parts of polyethylene octene co-elastomer and 20 parts of talcum powder.
Test and results
And (3) testing tensile property: the tensile rate was 5mm/min, as determined according to ISO 527-2.
And (3) testing the bending property: the bending speed was 2mm/min, as measured according to ISO 178.
The warp deformation resistance is determined by the ratio of the longitudinal shrinkage to the transverse shrinkage, and the size of the test sample is 150mm multiplied by 100mm multiplied by 4 mm.
And (3) testing the impact resistance: the bending speed is 2mm/min according to ISO 179 standard
TABLE 1
Item Example 1 Example 2 Example 3 Existing light plate (commercially available)
Tensile Strength (MPa) 153 155 162 125
Flexural Strength (MPa) 162 165 180 132
Flexural modulus (MPa) 6230 6300 6360 5523
Ratio of longitudinal to transverse shrinkage 0.82 0.84 0.83 0.68
Impact strength (KJ/m)2) 15.3 15.5 15.9 12.1
Coefficient of thermal conductivity (W/m X K) 0.114 0.118 0.120 0.210
Combustion performance V0 V0 V0 V1
The board obtained by the invention has various parameters superior to the performance of the existing board, lighter weight, better heat insulation performance and flame retardant performance.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention.

Claims (7)

1. A high-strength lightweight board is characterized in that: the plate sequentially comprises a plate surface layer and a foam layer clamped by the plate surface layer, the plate is prepared by sequentially laminating and hot-pressing the two plate surface layers and the foam layer clamped by the two plate surface layers, and a reinforcing rib is arranged on one side of the plate surface layer facing the foam layer and embedded into the foam layer;
the surface layer of the plate consists of the following components: 170 parts of graphene/glass composite fiber, 20-25 parts of epoxy resin, 35-45 parts of polyvinyl chloride, 15-20 parts of polyethylene, 4-8 parts of a copolymer of maleic anhydride and methyl acrylate, 1-3 parts of an acrylonitrile-styrene-butadiene copolymer, 1-3 parts of p-phenylenediamine, 15-20 parts of calcium stearate, 5-10 parts of zinc oxide, 10-15 parts of titanium dioxide and 20-25 parts of chloroprene rubber;
the foam layer consists of the following components: 60-70 parts of PVC resin, 8-12 parts of polypropylene foaming agent, 18-22 parts of polybutylene terephthalate, 8-10 parts of pentaerythritol bisdimethylsilicate, 5-8 parts of maleic anhydride grafted polyethylene, 8-10 parts of polyethylene octene co-elastomer and 18-22 parts of talcum powder.
2. The panel as claimed in the preceding claim, said panel skin consisting of: 160 parts of graphene/glass composite fiber, 26 parts of epoxy resin, 40 parts of polyvinyl chloride, 17 parts of polyethylene, 6 parts of a copolymer of maleic anhydride and methyl acrylate, 2 parts of an acrylonitrile-styrene-butadiene copolymer, 2 parts of p-phenylenediamine, 18 parts of calcium stearate, 8 parts of zinc oxide, 12 parts of titanium dioxide and 22 parts of chloroprene rubber.
3. A panel according to the preceding claim, said foam layer consisting of: 65 parts of PVC resin, 10 parts of polypropylene foaming agent, 20 parts of polybutylene terephthalate, 9 parts of pentaerythritol bis-dimethyl silicate, 5 parts of maleic anhydride grafted polyethylene, 9 parts of polyethylene octene co-elastomer and 20 parts of talcum powder.
4. The sheet as claimed in any one of the preceding claims, wherein the ribs are arranged in parallel and extend in the same direction.
5. The sheet material as claimed in claim 4, wherein the reinforcing ribs of the sheet material skin on both sides of the sheet material extend at right angles.
6. The plate as claimed in the above claims, wherein the graphene/glass composite fiber is prepared by the following method: (1) mixing the microporous glass fiber with sodium carboxymethylcellulose, adding graphene, dispersing in acetone, uniformly stirring, transferring to a vacuum heating kettle, pressurizing to 30MPa at 85 ℃, standing for 1h, filtering and drying to obtain graphene-loaded glass fiber; (2) soaking the graphene-loaded glass fiber prepared in the step (1) in a barium nitrate solution with the mass concentration of 40% for 1h, taking out the glass fiber, transferring the glass fiber into a ammonium dihydrogen phosphate solution with the mass concentration of 20%, standing, and generating barium phosphate and barium hydrogen phosphate crystal precipitates in micropores of the glass fiber, so that barium phosphate and barium hydrogen phosphate particles are assembled in internal pores of the glass fiber to encapsulate graphene, thereby forming the graphene/glass composite fiber.
7. A method of making a panel as claimed in any one of claims 1 to 6, which comprises separately feeding the raw materials for each layer of the panel into a twin screw extruder and then advancing the melt to a screen changer and then to a distributor; and the material processed by the distributor enters a die, is shaped in a shaping table, is transferred to a cooling bracket for cooling through a traction device, is transferred to a slitting saw for slitting through the traction device, is transversely cut through a transverse cutting saw platform, and is moved out from a conveying platform, so that the forming of each layer is completed, and then the layers are sequentially stacked and hot-pressed, so that the reinforcing ribs are embedded into the foam layer, and the plate is obtained.
CN202010343308.1A 2020-04-27 2020-04-27 High-strength light board and preparation method thereof Withdrawn CN111531995A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113148440A (en) * 2020-12-02 2021-07-23 中国人民解放军空军军医大学 A packing box for food air-drop
CN113277227A (en) * 2020-12-02 2021-08-20 中国人民解放军空军军医大学 Packaging box for air-drop of fragile articles
CN113277197A (en) * 2020-12-02 2021-08-20 中国人民解放军空军军医大学 A packing box for liquid air-drop

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CN206511291U (en) * 2016-10-31 2017-09-22 江阴市乐牛环保新材料科技有限公司 A kind of enhanced low deformation space pallet of supporting plate
CN108610603A (en) * 2016-12-10 2018-10-02 惠州市瑞诺科技有限公司 A kind of high-strength building engineering plastic form and preparation method thereof
CN109294091A (en) * 2018-09-26 2019-02-01 成都新柯力化工科技有限公司 A kind of the graphene flame-retardant master batch and preparation method of reinforced nylon66
CN109703146A (en) * 2018-12-27 2019-05-03 东莞市森蓝新材料科技有限公司 A kind of engineering plastic alloy composite plastic template and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN206511291U (en) * 2016-10-31 2017-09-22 江阴市乐牛环保新材料科技有限公司 A kind of enhanced low deformation space pallet of supporting plate
CN108610603A (en) * 2016-12-10 2018-10-02 惠州市瑞诺科技有限公司 A kind of high-strength building engineering plastic form and preparation method thereof
CN109294091A (en) * 2018-09-26 2019-02-01 成都新柯力化工科技有限公司 A kind of the graphene flame-retardant master batch and preparation method of reinforced nylon66
CN109703146A (en) * 2018-12-27 2019-05-03 东莞市森蓝新材料科技有限公司 A kind of engineering plastic alloy composite plastic template and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113148440A (en) * 2020-12-02 2021-07-23 中国人民解放军空军军医大学 A packing box for food air-drop
CN113277227A (en) * 2020-12-02 2021-08-20 中国人民解放军空军军医大学 Packaging box for air-drop of fragile articles
CN113277197A (en) * 2020-12-02 2021-08-20 中国人民解放军空军军医大学 A packing box for liquid air-drop

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