Graphene modification-based PP (polypropylene) material

A graphene modification and composite material technology, applied in the field of PP materials, can solve problems such as unsatisfactory antistatic effect of polypropylene, and achieve the effects of reducing viscosity, improving fluidity, and reducing density

Inactive Publication Date: 2019-03-15
合肥市丽红塑胶材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, polypropylene is widely used in the fields of auto parts and household appliances, but the antistatic effect of polypropylene is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The preparation method of the present invention is as follows:

[0029] A preparation method based on graphene-modified PP material, characterized in that:

[0030] S1. Heat the PP resin in an oven to 70-90°C for 2-3 hours, then take it out for use;

[0031] S2. Grind one or more of straw powder, wood powder, and bamboo powder under a grinder until the fineness of the wood fiber powder is 20 meshes, then divide the wood fiber powder into two parts, and process one of them carbonization dehydration;

[0032] S3. Stir and mix calcium carbonate, a portion of wood fiber powder without dehydration, thermoplastic polyurethane elastic particles, silane coupling agent, titanate coupling agent, and lubricant through a high-speed mixer;

[0033] S4. Heat the PP resin in step S1 to a hot-melt state in a metal container, add the product of step S3 into the hot-melted PP plastic, stir it with a mixer, and after fully mixing, drop to normal temperature;

[0034] S5. Pelletize the ...

Embodiment 1

[0042] A graphene-based modified PP material, comprising the following components in parts by weight: 80 parts of PP resin, 4 parts of calcium carbonate, 40 parts of wood fiber powder, 40 parts of thermoplastic polyurethane elastic particles, and 1 part of silane coupling agent , 1 part of titanate coupling agent, 1 part of carbon fiber, and 1 part of lubricant.

Embodiment 2

[0044] A graphene-based modified PP material, comprising the following components in parts by weight: 90 parts of PP resin, 4.5 parts of calcium carbonate, 45 parts of wood fiber powder, 45 parts of thermoplastic polyurethane elastic particles, 1.5 parts of silane coupling agent , 1.5 parts of titanate coupling agent, 1.5 parts of carbon fiber, and 1.5 parts of lubricant.

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Abstract

The invention relates to a graphene modification-based PP (polypropylene) material which comprises the following components in parts by weight: 80-100 parts of PP resin, 4-5 parts of calcium carbonate, 40-50 parts of wood fiber powder, 40-50 parts of thermoplastic polyurethane elastic particles, 1-2 parts of a silane coupling agent, 1-2 parts of a titanate coupling agent, 1-2 parts of carbon fibers and 1-2 parts of a lubricant. According to the invention, the wood fiber powder, the thermoplastic polyurethane elastic particles and PP are mixed together for modification, so that the tensile strength and bending modulus of elasticity in static bending of the composite material are both optimal, wherein the thermoplastic polyurethane elastic particles has the effect of enhancing the elastic strength of the whole material, and the wood fiber powder can reduce the density of the composite material after mixing.

Description

technical field [0001] The invention relates to a PP material, in particular to a graphene-based modified PP material. Background technique [0002] Polypropylene is a thermoplastic resin obtained by polymerizing propylene, referred to as PP. Polypropylene is a thermoplastic with light specific gravity, high surface hardness and high elasticity of the finished product, and polypropylene also has good heat resistance. The product can be sterilized at a temperature above 100°C. It does not deform at 150°C, and has good chemical stability. Except being corroded by concentrated sulfuric acid and concentrated nitric acid, it is relatively stable to various other chemical reagents. Polypropylene is suitable for making various chemical pipes and fittings, and has good anti-corrosion effect. High dielectric coefficient, and with the rise of temperature, it can be used to make heated electrical insulation products. It has good voltage resistance, arc resistance, and high breakdown v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L97/02C08L75/04C08K13/04C08K7/06C08K3/26C08K5/101C08J9/12
CPCC08J9/0061C08J9/0066C08J9/0085C08J9/0095C08J9/122C08J2203/06C08J2323/12C08J2475/04C08J2497/02
Inventor 张振东方尔平张文东
Owner 合肥市丽红塑胶材料有限公司
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