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Flame-retardant enhanced-type polypropylene composite material and preparing method thereof

A composite material and polypropylene technology, which is applied in the field of flame-retardant reinforced polypropylene composite material and its preparation, can solve the problems of inability to have both flame-retardant and enhanced dual-functional properties, low flame-retardant and reinforcement efficiency, etc., and achieve improved Comprehensive mechanical properties, improved compatibility, and high strength

Inactive Publication Date: 2017-04-26
DONGGUAN POLYTECHNIC
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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 overcome the low efficiency of flame retardancy and reinforcement of polypropylene composite materials in the prior art, or the problem that the dual-functional characteristics of flame retardancy and reinforcement cannot be simultaneously provided, and to provide a polypropylene composite material through modified fillers, carbon nanotubes, additives and Combination and synergy of flame retardants, and then propose a flame-retardant reinforced polypropylene composite material and its preparation method

Method used

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  • Flame-retardant enhanced-type polypropylene composite material and preparing method thereof
  • Flame-retardant enhanced-type polypropylene composite material and preparing method thereof

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Effect test

Embodiment 1

[0026] A flame-retardant reinforced polypropylene composite material is characterized in that: it is composed of polypropylene matrix, carbon nanotube modified masterbatch, potassium titanate whiskers, compound flame retardant, modified filler, compatibilizer and antioxidant Made, by weight, 50 parts of polypropylene matrix, 15 parts of carbon nanotube modified masterbatch, 8 parts of potassium titanate whiskers, 10 parts of compound flame retardant, 10 parts of modified filler, 3 parts of compatibilizer and 1 part of antioxidant; the modified filler is mixed with modified glass fiber and modified nano-silica in a weight ratio of 5:2; the compound flame retardant is a nitrogen-phosphorus compound flame retardant agent, the particle size is 5 microns; the carbon nanotube modified masterbatch is formed by mixing and melting a polypropylene matrix and multi-walled carbon nanotubes with a weight ratio of 10:1, and the multi-walled carbon nanotubes pass through other 10% by weight ...

Embodiment 2

[0035] A flame-retardant reinforced polypropylene composite material, which is made of polypropylene matrix, carbon nanotube modified masterbatch, potassium titanate whiskers, compound flame retardant, modified filler, compatibilizer and antioxidant, according to Weight ratio: 55 parts of polypropylene matrix, 18 parts of carbon nanotube modified masterbatch, 10 parts of potassium titanate whiskers, 13 parts of compound flame retardant, 13 parts of modified filler, 4 parts of compatibilizer and 1 part of antioxidant part; the modified filler is mixed with modified glass fiber and modified nano-silica in a weight ratio of 5:2; the compound flame retardant is a nitrogen-phosphorus compound flame retardant, and the particle size 10 microns; the carbon nanotube modified masterbatch is formed by mixing and melting a polypropylene matrix and multi-walled carbon nanotubes with a weight ratio of 13:1, and the multi-walled carbon nanotubes pass through 13% of its weight surface before m...

Embodiment 3

[0044] A flame-retardant reinforced polypropylene composite material, which is made of polypropylene matrix, carbon nanotube modified masterbatch, potassium titanate whiskers, compound flame retardant, modified filler, compatibilizer and antioxidant, according to Weight ratio: 65 parts of polypropylene matrix, 20 parts of carbon nanotube modified masterbatch, 12 parts of potassium titanate whiskers, 16 parts of compound flame retardant, 15 parts of modified filler, 5 parts of compatibilizer and 2 parts of antioxidant part; the modified filler is composed of modified glass fiber and modified nano-silica in a weight ratio of 5:2; the compound flame retardant is a nitrogen-phosphorus compound flame retardant with a particle size of 5 -10 microns; the carbon nanotube modified masterbatch is formed by mixing and melting a polypropylene matrix and multi-walled carbon nanotubes with a weight ratio of 15:1, and the multi-walled carbon nanotubes pass through 15% of its weight surface be...

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Abstract

Disclosed are an flame-retardant enhanced-type polypropylene composite material and a preparing method thereof. The flame-retardant enhanced-type polypropylene composite material is prepared from a polypropylene matrix, carbon nanotube modified master batch, a potassium titanate crystal whisker, a composite fire retardant, modified filler, a compatilizer and an antioxidant, wherein the carbon nanotube modified master batch is prepared through the mixed melting of the polypropylene matrix and multiwall-carbon nanotube according to a weight ratio of 10-15:1, the composite fire retardant is a nitrogen-phosphorous composite fire retardant, through the interaction of the nitrogen-phosphorous composite fire retardant and the multiwall-carbon nanotube, a combustion decomposition product of the polypropylene composite material can generate a compact, and continuously stable char layer; meanwhile, two-mechanical melt blending of the multi-walled carbon nanotube are adopted so that the multiwall-carbon nanotube can be fully dispersed in the polypropylene matrix, and two-mechanical melt blending of the multi-walled carbon nanotube are adopted. According to the flame-retardant enhanced-type polypropylene composite material and the preparing method thereof, the operation technology is simple, the added filler causes no pollution to the environment, and thus the flame-retardant enhanced-type polypropylene composite material is environmentally friendly.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, in particular to a flame-retardant reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] As a general-purpose thermoplastic, polypropylene is polymerized from propylene monomer. Because of its low density, easy processing, non-toxicity, good mechanical properties, fatigue resistance and stress crack resistance, it can be recycled and reused. , so it has a wide range of applications in the automotive industry, electrical industry, daily necessities and packaging industries. However, polypropylene has a large shrinkage rate, is easy to scratch the surface, is easy to age, and is easy to burn when exposed to fire. During the combustion process, the flame drops and a large amount of black smoke is released, and its molecular chain contains methyl groups, which increases the rigidity of the entire molecular chain and reduces its Impact p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L83/06C08K13/06C08K9/06C08K9/02C08K7/14C08K3/36C08K7/24C08K7/08C08J5/06C08J3/22B29C47/92B29C48/92
CPCC08L23/12B29C48/92B29C2948/9258B29C2948/92704C08J3/226C08J5/06C08J2323/12C08J2423/12C08K2201/004C08K2201/011C08L2201/02C08L2205/025C08L2205/03C08L2205/08C08L83/06C08K13/06C08K9/06C08K9/02C08K7/14C08K3/36C08K7/24C08K7/08
Inventor 张峻岭张茂荣文周
Owner DONGGUAN POLYTECHNIC
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