Reinforced polypropylene composite material and preparation method thereof

A composite material, polypropylene technology, applied in the field of plastics, can solve the problems of high shrinkage rate, poor compatibility of polar polymers, low mechanical strength, etc., to achieve the effect of improving interface function, improving interface strength, and purifying air quality

Inactive Publication Date: 2020-05-08
广东顺威赛特工程塑料开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, polypropylene is a highly crystalline polymer, its shrinkage rate is as high as 1.6-2%, its mechanical strength is low, and its polar polymer compatibility is poor, these shortcomings limit its further application

Method used

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  • Reinforced polypropylene composite material and preparation method thereof
  • Reinforced polypropylene composite material and preparation method thereof
  • Reinforced polypropylene composite material and preparation method thereof

Examples

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Effect test

no. 1 example

[0024] The reinforced polypropylene composite material is characterized in that: by weight percentage, it includes 30-69% of polypropylene, 20-33% of bamboo charcoal fiber, 5-15% of maleic anhydride grafted polypropylene, 0.5-1% of coupling agent, Toughening agent 3-8%, dispersant 1-3% and auxiliary agent 1.5%-3%. Bamboo charcoal is another brand-new environmentally friendly material with excellent performance developed by bamboo resources. Bamboo charcoal is formed after bamboo is dried and carbonized at 800 degrees. Bamboo charcoal has a strong ability to absorb and decompose, can absorb moisture and dry, deodorize and antibacterial, and has the properties of negative ion penetration. Bamboo charcoal fiber uses nanotechnology to micronize bamboo charcoal first, then process nano-scale bamboo charcoal micropowder through high-tech technology, and then use traditional chemical fiber preparation process to spin and form qualified bamboo charcoal fiber.

[0025] The coupling ag...

no. 2 example

[0035] This reinforced polypropylene composite material is different from the first embodiment in that it includes 53.5% polypropylene, 30% bamboo charcoal fiber, 10% maleic anhydride grafted polypropylene, 0.5% vinyl silane coupling agent, Toughening agent 3%, dispersant 1% and auxiliary agent 2%.

[0036] Other parts not described are the same as those of the first embodiment, and will not be analyzed and described here.

no. 3 example

[0038] This reinforced polypropylene composite material is different from the first embodiment in that it includes 49.2% polypropylene, 30% bamboo charcoal fiber, 10% maleic anhydride grafted polypropylene, 0.8% vinyl silane coupling agent, Toughening agent 5%, dispersant 3% and auxiliary agent 2%.

[0039] Other parts not described are the same as those of the first embodiment, and will not be analyzed and described here.

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Abstract

A reinforced polypropylene composite material comprises the following components in percentage by weight: 30-69% of polypropylene, 20-33% of bamboo charcoal fiber, 5-15% of maleic anhydride grafted polypropylene, 0.5-1% of coupling agent, 3-8% of toughening agent, 1-3% of dispersing agent and 1.5-3% of assistant. According to the polypropylene composite material disclosed by the invention, the nanoscale bamboo charcoal fiber is selected as a reinforcing agent; the bamboo charcoal fibers have strong adsorption and decomposition capability, are deodorant and antibacterial, and have negative ionpenetration performance and the like; the adsorption capacity of the composite material on particles with the diameter of less than or equal to 2.5 microns in air can be greatly improved, thereby purifying air quality, removing peculiar smell and protecting air refreshing capability. Meanwhile, , tensile strength and bending strength of polypropylene can be greatly improved, so that the product isobviously improved in rigidity; the bamboo charcoal fiber special structure can play a framework supporting role in the polypropylene material and hinder polypropylene crystallization, and accordingly shrinkage of the composite material is reduced.

Description

technical field [0001] The invention relates to a plastic, in particular to a reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene (PP for short) is one of the thermoplastics with the largest output. It has the advantages of low density, good heat resistance, excellent bending fatigue resistance, excellent chemical stability and electrical properties, so it is widely used in Automobiles, home appliances, office supplies, electronic appliances and other fields. However, polypropylene is a highly crystalline polymer, its shrinkage rate is as high as 1.6-2%, its mechanical strength is low, and its polar polymer compatibility is poor. These shortcomings limit its further application. Finding effective ways to improve the mechanical properties of PP materials and improve their shrinkage and deformation defects has become a research hotspot. Secondly, with the increasing severity of global air pollution and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08K7/06C08K5/134C08K5/526C08K5/54C08K13/04
CPCC08L23/12C08K2201/011C08L51/06C08K7/06C08K5/1345C08K5/526C08K5/54C08K13/04
Inventor 彭万晏伟何迎新
Owner 广东顺威赛特工程塑料开发有限公司
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