Compatilizer and glass fiber reinforced polypropylene composite material

Abstract

The invention discloses a compatilizer and a preparation method thereof. Meanwhile, the invention further discloses a glass fiber reinforced polypropylene composite material. The polypropylene composite material comprises the following components by weight: 35-90 parts of polypropylene, 20-50 parts of glass fiber, 5-15 parts of a compatilizer and 0.2-0.6 part of an antioxidant, wherein the polypropylene contains polypropylene A, and the melt flow rate of the polypropylene A under the condition of 230DEG C and 2.16kg is 800-1800g / 10min. By using the polypropylene A and the specific compatilizer, the glass fiber can be better wrapped and infiltrated, so that the appearance anti-floating fiber effect is good; meanwhile, the invention further discloses a preparation method of the glass fiber reinforced polypropylene composite material.

Description

technical field [0001] The invention relates to the field of polymer material modification, in particular to a compatibilizer and a glass fiber reinforced polypropylene composite material. Background technique [0002] Glass fiber reinforced polypropylene (GFRPP) has the advantages of high rigidity, high impact, good fatigue creep resistance, short molding cycle, and recyclability, which largely solves a series of shortcomings such as low rigidity and poor fatigue creep of pure PP. After being put into use in the 1970s, it has been widely used in many fields such as home appliances, electronic appliances, construction industry, aerospace, ships and automobiles. However, in terms of engineering applications, the phenomenon of glass fiber exposure greatly limits the use of GFRPP materials. [0003] In recent years, with the improvement of the use environment and aesthetic requirements of polymer materials, people have put forward higher requirements for the floating fiber con...

AI Technical Summary

Problems solved by technology

In many current studies, some scholars use anti-floating fiber masterbatches, such as CN108912514, which uses glass fiber and PB-1 as anti-floating fiber masterbatches and then adds them to the finished product, so that the glass fiber in the masterbatch has undergone a second pass and the retention length will be reduced. reduce, affecting the mechanical properties of the product; such as CN 103756014B uses zinc oxide as anti-floating fiber masterbatch, this anti-floating fiber masterbatch is white, and cannot be applied to dark-colored products

In addition, some scholars add anti-floating fiber agent in the product, and the type of anti-floating fiber agent is also various, such as CN 107254104A using high-melting index PP (MFR>500g / 10min), ethylene bisstearic acid amide dispersant It is used in combination with TAF lubricant, but ethylene bis stearic acid amide dispersant and TAF are small molecules, which may cause stickiness.

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