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Shock-resistant wear-resistant compound liner and preparation method thereof

A technology of anti-impact and wear-resistant, composite liner, which is applied in the field of polymer processing, can solve the problems of non-recyclable, etc., and achieve the effects of excellent wear resistance, good processing performance, and low material cost

Active Publication Date: 2013-10-09
JIANGSU XINYE HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN 1032175A blends and cross-links ultra-high molecular weight polyethylene, styrene-butadiene rubber, super wear-resistant carbon black, dicumyl peroxide and other additives, and makes a composite material by molding method, so that the wear amount is close to The residual rate of strength is 83%-96%, and the temperature rises to 350°C without softening. However, the composite material is a cross-linked system, a ball thermosetting material, which cannot be recycled, and can only be made by mechanical processing such as turning. Final product

Method used

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  • Shock-resistant wear-resistant compound liner and preparation method thereof
  • Shock-resistant wear-resistant compound liner and preparation method thereof
  • Shock-resistant wear-resistant compound liner and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] The impact-resistant and wear-resistant composite liner is composed of the following components, and the parts by weight of each component are:

[0022]

[0023] The preparation method of the impact-resistant and wear-resistant composite liner specifically includes the following steps:

[0024] (1) First take each raw material component respectively according to formula ratio;

[0025] (2) Add the weighed ultrafine magnesium hydroxide and vinyltriethoxysilane into a high-speed mixer, and stir at a high speed for 2-3 minutes;

[0026] (3) Add ultra-high molecular weight polyethylene, medium density polyethylene, low density polyethylene, zinc stearate, and dicumyl peroxide into the mixed powder in step (2), and then stir at high speed for 2-3 minutes ;

[0027] (4) mica is added in the compound of step (3), continue high-speed stirring 4-6min;

[0028] (5) Finally, the uniformly stirred mixture is hot-pressed and formed under a set temperature and pressure on an or...

Embodiment 2

[0030] The impact-resistant and wear-resistant composite liner is composed of the following components, and the parts by weight of each component are:

[0031]

[0032] Among them, the molecular weight of ultra-high molecular weight polyethylene is 3-7 million.

[0033] The preparation method is as follows:

[0034] (1) First take each raw material component respectively according to formula ratio;

[0035] (2) Add the weighed ultrafine magnesium hydroxide and vinyltriethoxysilane into a high-speed mixer, and stir at a high speed for 2-3 minutes;

[0036] (3) Add ultra-high molecular weight polyethylene, medium density polyethylene, low density polyethylene, zinc stearate, and dicumyl peroxide into the mixed powder in step (2), and then stir at high speed for 2-3 minutes ;

[0037] (4) mica is added in the compound of step (3), continue high-speed stirring 4-6min;

[0038] (5) Finally, the uniformly stirred mixture is hot-pressed and formed under a set temperature and p...

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Abstract

The invention relates to a shock-resistant wear-resistant compound liner, comprising the following components in parts by weight: 40-55 parts of ultrahigh molecular weight polyethylene, 5-10 parts of medium density polyethylene, 5-10 parts of low density polyethylene, 3-5 parts of superfine magnesium hydroxide, 20-30 parts of mica, 8-10 parts of vinyl triethoxy silane, 0.5-1.5 parts of zinc stearate and 0.3-0.5 part of dicumyl peroxide. Formula materials are stirred to be uniform in a high-speed stirring machine in steps, and hot press forming is carried out on a hot pressing machine. The prepared shock-resistant and wear-resistant compound liner keeps the characteristics of the ultrahigh molecular weight polyethylene such as excellent wear resistance, shock resistance, chemical corrosion resistance and low temperature toughness and also has the characteristics of good processability and low material cost.

Description

technical field [0001] The invention relates to the field of polymer processing, in particular to an impact-resistant and wear-resistant composite liner and a preparation method thereof. Background technique [0002] Ultra-high molecular weight polyethylene (polyethylene with a viscosity-average molecular weight exceeding 1.5 million) has excellent wear resistance, impact resistance, chemical corrosion resistance and low-temperature toughness, and is widely used as a thermoplastic engineering plastic. However, ultra-high molecular weight polyethylene also has some inherent disadvantages of polyethylene resin, such as low heat distortion temperature, poor creep resistance, large thermal expansion coefficient, and low surface hardness, which limit its application range to a certain extent. [0003] The measures to improve the heat resistance of ultra-high molecular weight polyethylene products mainly include: adopting stretching process to orient ultra-high molecular weight po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K13/02C08K3/34C08K5/5425C08K5/14C08K5/098
Inventor 候世祥
Owner JIANGSU XINYE HEAVY IND