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Light-weight high-strength heat-insulation composite material plate and preparation method thereof

A technology of composite materials and panels, applied in the field of light-weight and high-strength thermal insulation composite panels and their preparation, to achieve the effects of improving oil absorption value and interface bonding force, high and low thermal conductivity, and improving mechanical properties

Inactive Publication Date: 2021-02-02
扬州万盛实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the surface treatment of hollow microspheres and other fillers is carried out to improve their compatibility with resins. This method aims to solve the problem of continuous production of composite material plates while maintaining high strength and low thermal conductivity.

Method used

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  • Light-weight high-strength heat-insulation composite material plate and preparation method thereof
  • Light-weight high-strength heat-insulation composite material plate and preparation method thereof
  • Light-weight high-strength heat-insulation composite material plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0035] 1) Pour 10kg of o-phthalic unsaturated polyester resin, 1kg of polystyrene, 8kg of coupling agent KH550 surface-modified hollow microspheres, and 0.2kg of benzoyl peroxide into a blender to mix and stir Obtain resin paste evenly;

[0036] 2) Lay a layer of 0.3kg unidirectional glass fiber cloth on the surface of the polyester lower film, then flow the resin paste in 1) from the valve to the fiber cloth, and 2.75kg of chopped composite felt settles on the fiber cloth after cutting, Then lay a layer of 0.3kg unidirectional glass fiber cloth, first pass through the pressure roller, then cover the polyester film, and finally squeeze through the roller, and the fiber is impregnated with resin to obtain a prepreg;

[0037] 3) The prepreg enters the curing zone, and is cured and formed at 0.7MPa pressure and 80°C;

[0038] 4) After the curing is completed, the polyester upper film and the lower film are recycled, and the board is cut into a certain size to obtain a finished p...

example 2

[0043] 1) Pour 10kg of o-phthalic unsaturated polyester resin, 1kg of polystyrene, 8kg of coupling agent KH550 surface-modified ceramic microbeads, and 0.2kg of benzoyl peroxide into a blender to mix and stir Obtain resin paste evenly;

[0044] 2) Lay a layer of 0.3k unidirectional glass fiber cloth on the surface of the polyester lower film, then flow the resin paste in 1) from the valve to the fiber cloth, and 2.75kg of chopped composite felt settles on the fiber cloth after cutting, Then lay a layer of 0.3kg unidirectional glass fiber cloth, first pass through the pressure roller, then cover the polyester film, and finally squeeze through the roller, and the fiber is impregnated with resin to obtain a prepreg;

[0045] 3) The prepreg enters the curing zone, and is cured and formed at 0.7MPa pressure and 80°C;

[0046] 4) After the curing is completed, the polyester upper film and the lower film are recycled, and the board is cut into a certain size to obtain a finished pro...

example 3

[0051] 1) the benzoyl peroxide of the ortho-phthalic unsaturated polyester resin of 10kg, the polystyrene of 1kg, the coupling agent KH550 surface modification hollow glass microsphere of 4kg, 0.2kg are poured into the stirrer and mixed and Stir evenly to obtain a resin paste;

[0052] 2) Lay a layer of 0.3kg unidirectional glass fiber cloth on the surface of the polyester lower film, then flow the resin paste in 1) from the valve to the fiber cloth, and 2.75kg of chopped composite felt settles on the fiber cloth after cutting, Then lay a layer of 0.3kg unidirectional glass fiber cloth, first pass through the pressure roller, then cover the polyester film, and finally squeeze through the roller, and the fiber is impregnated with resin to obtain a prepreg;

[0053] 3) The prepreg enters the curing zone, and is cured and formed at 0.7MPa pressure and 80°C;

[0054] 4) After the curing is completed, the polyester upper film and the lower film are recycled, and the board is cut int...

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Abstract

The invention relates to the technical field of automobile plates, in particular to a light high-strength heat-insulation composite material plate and a preparation method thereof, and the composite material plate comprises the following components in parts by weight: 100 parts of unsaturated polyester resin, 20-50 parts of chopped composite felt, 1-100 parts of surface modified hollow microspheres, 5-20 parts of unidirectional glass fiber cloth, 1-4 parts of curing agent and 5-20 parts of low-shrinkage additive. According to the invention, the chopped strand mat reinforced thermosetting resincomposite material plate is prepared by adopting a continuous plate making process, a layer of one-way fiber cloth is laid on each of the upper and lower parts of the composite mat, the mechanical property of the plate is further improved, the heat conductivity coefficient of the material is reduced by adopting a mode of combining the chopped strand mat and the hollow microspheres, and fillers such as the hollow microspheres are subjected to surface treatment, so that the compatibility of the fillers and resin is improved, and the method aims at continuously producing the composite material plate under the condition of keeping high strength and low heat conductivity coefficient.

Description

technical field [0001] The invention relates to the technical field of automobile plates, in particular to a light-weight, high-strength heat-insulating composite material plate and a preparation method thereof. Background technique [0002] Energy saving and environmental protection have become the inevitable trend of the development of the contemporary automobile industry, and automobile lightweight is an important way to achieve the goals of energy saving and environmental protection. The main ways to realize the lightweight of automobiles are material lightweight, structural design optimization and manufacturing process innovation. In these approaches, material weight reduction is the focus and core issue in realizing automobile weight reduction. [0003] Fiber-reinforced thermosetting resin-based composites have the advantages of low density, excellent mechanical properties, good molding process adaptability, and a wide range of raw material sources, and can be widely ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/06C08L25/06C08K7/14C08K9/06C08K7/22C08K5/14C08K13/06C08J5/24
CPCC08J5/24C08J2367/06C08J2425/06C08K7/14C08K9/06C08K7/22C08K5/14C08K13/06
Inventor 刘惠智王邦延朱祥楼梅启林周光轶艾清周兵蔡梦岚
Owner 扬州万盛实业有限公司
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