Anti-floating fiber agent and anti-floating fiber polypropylene reinforced composite material

Abstract

The invention discloses an anti-floating fiber agent and a preparation method thereof. Meanwhile, the invention also discloses an anti-floating fiber polypropylene reinforced composite material. The anti-floating fiber polypropylene reinforced composite material comprises the following components in parts by weight, 35-90 parts of polypropylene, 20-50 parts of glass fibers, 5-15 parts of the anti-floating fiber agent and 0.2-0.6 part of an antioxidant, the polypropylene comprises polypropylene A, and the melt flow rate of the polypropylene A at 230 DEG C and 2.16 kg is 1000-1500g / 10min. By using the polypropylene A and the anti-floating fiber agent, the glass fiber can be better wrapped and infiltrated, so that the appearance anti-floating fiber effect is good; in addition, the invention also discloses a preparation method of the anti-floating fiber polypropylene reinforced composite material.

Description

technical field [0001] The invention relates to the field of polymer material modification, in particular to an anti-floating fiber agent and an anti-floating fiber polypropylene reinforced 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 t...

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 and affect the mechanical properties of the product; such as CN 103756014 B 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 agents in products, and the types of anti-floating fiber agents are also various, such as CN 107254104 A using high-melt index PP (MFR>500g / 10min), ethylene bisstearic acid amide dispersion dispersant and TAF lubricant, but ethylene bis stearic acid amide dispersant and TAF are small molecules that may cause stickiness due to precipitation

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