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Polypropylene composite material with high performance and preparation method thereof

A composite material, polypropylene technology, applied in the field of materials, can solve the problems of pressure resistance and durable hydrolysis resistance, and achieve the effects of improved notched impact performance, improved flexural strength and flexural modulus, and high performance

Inactive Publication Date: 2018-11-27
浙江希卡姆复合材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional polypropylene composite materials fail to pass the pressure resistance and durable hydrolysis resistance. Generally, they will crack after 6,000 pressure injections. Foreign equivalent materials require 30,000 times to pass.

Method used

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  • Polypropylene composite material with high performance and preparation method thereof
  • Polypropylene composite material with high performance and preparation method thereof
  • Polypropylene composite material with high performance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A high-performance polypropylene composite material consisting of the following raw materials in weight percent:

[0021]

[0022] The above-mentioned homopolymer PP component is homopolypropylene, and its characteristic flexural modulus is 1700MPa;

[0023] The above-mentioned copolymerized PP component is copolymerized polypropylene, and its characteristic notched impact is 45KJ / m 2 ;

[0024] The surface of the above-mentioned alkali-free glass fiber is treated with a silane coupling agent, and the diameter of the single filament is 9 microns;

[0025] The above-mentioned reactive compatibilizer is a polyolefin reactive compatibilizer;

[0026] Other additives are ultraviolet absorber 2 hydroxy-4-n-octyloxybenzophenone;

[0027] Prepared by the following method:

[0028] 1. Ingredients: add homopolymerized PP, copolymerized PP and compatibilizer in the high-speed mixer in sequence according to the weight ratio of the formula, and pre-mix for 5 minutes, add ant...

Embodiment 2

[0032] A high-performance polypropylene composite material consisting of the following raw materials in weight percent:

[0033]

[0034]

[0035] The above-mentioned homopolymer PP component is homopolypropylene, and its characteristic flexural modulus is 1700MPa;

[0036] The above-mentioned copolymerized PP component is copolymerized polypropylene, and its characteristic notched impact is 45KJ / m 2 ;

[0037] The surface of the above-mentioned alkali-free glass fiber is treated with a silane coupling agent, and the diameter of the single filament is 9 microns;

[0038] The above-mentioned reactive compatibilizer is a polyolefin reactive compatibilizer;

[0039] Other additives are ultraviolet absorber 2 hydroxy-4-n-octyloxybenzophenone;

[0040] Prepared by the following method:

[0041] 1. Ingredients: add homopolymerized PP, copolymerized PP and compatibilizer in the high-speed mixer in sequence according to the weight ratio of the formula, and pre-mix for 5 minu...

Embodiment 3

[0045] A high-performance polypropylene composite material consisting of the following raw materials in weight percent:

[0046]

[0047]

[0048] The above-mentioned homopolymer PP component is homopolypropylene, and its characteristic flexural modulus is 1700MPa;

[0049] The above-mentioned copolymerized PP component is copolymerized polypropylene, and its characteristic notched impact is 45KJ / m2;

[0050] The surface of the above-mentioned alkali-free glass fiber is treated with a silane coupling agent, and the diameter of the single filament is 9 microns;

[0051] The above-mentioned reactive compatibilizer is a polyolefin reactive compatibilizer;

[0052] Other additives are ultraviolet absorber 2 hydroxy-4-n-octyloxybenzophenone;

[0053] Prepared by the following method:

[0054] 1. Ingredients: add homopolymerized PP, copolymerized PP and compatibilizer in the high-speed mixer in sequence according to the weight ratio of the formula, and pre-mix for 5 minutes...

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Abstract

The invention belongs to the technical field of materials, and especially relates to a composite material and a preparation method thereof. The polypropylene composite material with high performance designed by the invention consists of the following raw materials, by weight: 45%-55% of a PP homopolymer component, 10%-20% of a PP copolymer component, 3%-8% of a reactive compatibilizer, 16%-40% ofalkali-free glass fibers, 0.1%-0.5% of an anti-hydrolysis agent, 0.2%-0.8% of an antioxidant, and 0.1%-0.5% of other auxiliary agents. According to the preparation method, the PP homopolymer componentis added to improve the rigidity of the material, a part of specially selected PP copolymer is added to improve a part of the toughness, and a very high performance balance can be achieved through the combination of the selected glass fibers. The addition of the anti-hydrolysis agent and the long-term antioxidant can keep the physical properties of the material unchanged for a long time.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a composite material and a preparation method thereof. Background technique [0002] In real life, more and more small water pumps are using engineering plastics instead of metal materials. Polypropylene composite materials have the characteristics of good water resistance, good dimensional stability, environmental protection, and low price and easy availability. However, conventional polypropylene composite materials cannot pass the pressure resistance and durable hydrolysis resistance. Generally, they will crack after 6,000 pressure injections. Foreign equivalent materials require 30,000 times to pass. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a polypropylene composite material with high rigidity, high impact resistance and durable hydrolysis resistance. [0004] In order...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08K13/06C08K9/06C08K7/14B29C47/92B29C48/92
CPCC08K2201/003C08L23/12C08L2205/03C08L23/14C08K13/06C08K9/06C08K7/14
Inventor 王洪祥韩文广叶志鹏
Owner 浙江希卡姆复合材料股份有限公司
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