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Glassfiber reinforced polypropylene material without fiber exposion and manufacturing process thereof

A technology of polypropylene and glass fiber, applied in the field of organic polymer composite materials, to achieve the effect of stable size, high surface finish, and not easy to age

Inactive Publication Date: 2010-06-30
KECHUANG POLYMER SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to effectively overcome the defects of the existing polypropylene raw materials, and provide a glass fiber reinforced polypropylene raw material that is similar in appearance to the unimproved similar material but comparable in performance to the improved similar material without fiber exposure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] The first embodiment provides a fiber-free glass fiber reinforced green environmental protection polypropylene raw material, which is composed of the following components in a weight ratio: polypropylene: 65%, alkali-free glass fiber: 30%; heat stabilizer: 0.5%, glass Fiber treatment agent: 1.0%, coupling agent: 1.0%, light stabilizer: 0.5%, ultraviolet absorber: 0.5%, other additives: 1.5%;

[0011] First weigh the polypropylene, heat stabilizer, glass fiber treatment agent, coupling agent, light stabilizer, ultraviolet absorber, and other additives in proportions, then mix at low speed in the mixer for 10 minutes, and the mixer uses low speed mixing , Made of stainless steel, the gap between the mixing blade and the barrel wall should be less than 0.5 cm. The mixing effect of the raw and auxiliary materials should be visually uniform, and there is no obvious agglomeration or agglomeration, and then use; the twin screw extruder uses 36 long diameters Compared with, if it ...

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PUM

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Abstract

The invention relates to an organic high-molecular composite material, in particular to a glassfiber reinforced polypropylene material without fiber exposion and a manufacturing process thereof. The organic high-molecular composite material comprises the following components in percentage by weight: 49.5%-95% of polypropylene, 5%-50% of alkali-free glass fibers, 0.1%-3.0% of heat stabilizers, 0.1%-3.0% of glass fiber finishing agents, 0.2%-8% of coupling agents, 0.1%-2.0% of light stabilizers, 0.1%2.0% of ultraviolet absorbers and 1.3%-5.5% of other auxiliary agents. The glassfiber reinforced polypropylene material without the fiber exposion is not easily subject to embrittlement at low temperature, abrasion, aging and melt disruption, decomposition in contact with hot metal for a long time, contraction cavity, sink mark and deformation and has small constriction range and constriction value, stable dimension and high surface smoothness of generated products.

Description

Technical field [0001] The invention relates to an organic polymer composite material, and more specifically, to a fiber-free glass fiber reinforced polypropylene raw material. The invention also relates to a method of making this polypropylene raw material. Background technique [0002] Polypropylene (PP) as a thermoplastic polymer has a very wide range of applications in the plastics field. It is currently one of the most widely used engineering plastics. It has excellent flow properties and a wide range of flow rates, as well as other unique polymerizations. The combination of physical properties makes it have excellent processing properties, and at the same time, it is cheap, non-toxic, odorless, and has a low density. It can be used at about 100 degrees. It has good electrical properties and high-frequency insulation. It is not affected by humidity. For the production of general mechanical parts, corrosion-resistant parts and insulating parts. Common acid and alkali organi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K7/14
Inventor 孙平
Owner KECHUANG POLYMER SUZHOU
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