A new composite material of chlorinated polyethylene rubber and its preparation method

A technology of chlorinated polyethylene and rubber composition is applied in the field of chlorinated polyethylene composite new material and its preparation, and can solve the problems of high cost, poor flame retardant performance and the like

Active Publication Date: 2020-10-27
HANGZHOU KELI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the rubber used for building sealing strips generally uses EPDM rubber. Ethylene-propylene rubber is a commonly used synthetic rubber. It has good weather resistance, but its flame retardant performance is not good. For very strict flame retardant sealing strips, some Neoprene is used, but the cost is higher

Method used

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  • A new composite material of chlorinated polyethylene rubber and its preparation method
  • A new composite material of chlorinated polyethylene rubber and its preparation method
  • A new composite material of chlorinated polyethylene rubber and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A new composite material of chlorinated polyethylene rubber, which consists of: 100kg of rubber type chlorinated polyethylene, 7kg of magnesium hydroxide, 35kg of semi-reinforced 774 carbon black, 60kg of 990 carbon black, 0.5kg of stearic acid, stearic acid Calcium 2kg, kaolin E2 15kg, dioctyl terephthalate 25kg, protective wax 0.5kg, antimony trioxide 4kg, thiadiazole vulcanizing agent ECHO S 8083M-504.5kg.

[0026] The preparation method of chlorinated polyethylene rubber sealing strip is:

[0027] (1) take chlorinated polyethylene rubber and various auxiliary agents according to the formula;

[0028] (2) Put the additives other than the vulcanizing agent and the weighed chlorinated polyethylene rubber into the internal mixer, and control the rubber mixing temperature ≦ 100°C by passing cooling water. After mixing the rubber for 3 minutes, add the vulcanizing agent and then Knead for about 1.5 minutes and discharge, make 4-5 triangular bags on the open mill, then th...

Embodiment 2

[0031] A new composite material of chlorinated polyethylene rubber, which consists of: 100kg of rubber type chlorinated polyethylene, 10kg of magnesium hydroxide, 40kg of semi-reinforced 774 carbon black, 70kg of 990 carbon black, 1kg of stearic acid, calcium stearate 3kg, kaolin E2 20kg, dioctyl terephthalate 32kg, protective wax 1kg, antimony trioxide 6kg, thiadiazole vulcanizing agent ECHO S 808 3M-505.5kg.

[0032] The preparation method of chlorinated polyethylene rubber sealing strip is the same as embodiment 1.

Embodiment 3

[0034] A new composite material of chlorinated polyethylene rubber, which consists of: 100kg of rubber-type chlorinated polyethylene, 8.5kg of magnesium hydroxide, 37.5kg of semi-reinforced 774 carbon black, 65kg of 990 carbon black, 0.75kg of stearic acid, hard Calcium fatty acid 2.5kg, kaolin E217.5kg, dioctyl terephthalate 28.5kg, protective wax 0.75kg, antimony trioxide 5kg, thiadiazole vulcanizing agent ECHOS808 3M-50 5kg.

[0035] The preparation method of chlorinated polyethylene rubber sealing strip is the same as embodiment 1.

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Abstract

The invention relates to a novel chlorinated polyethylene rubber compound material, in particular to a novel chlorinated polyethylene rubber compound material for preparing sealing strips and a methodfor preparing the novel chlorinated polyethylene rubber compound material. The novel chlorinated polyethylene rubber compound material comprises, by weight, 100 parts of rubber-based chlorinated polyethylene, 7-10 parts of magnesium hydroxide, 35-40 parts of semi-reinforced 774 carbon black, 60-70 parts of 990 carbon black, 0.5-1 part of stearic acid, 2-3 parts of calcium stearate, 15-20 parts ofkaolin E2, 25-32 parts of dioctyl terephthalate, 4-6 parts of antimony trioxide, 0.5-1 part of protection wax and 4.5-5.5 parts of vulcanizing agents ECHOS 808 3M-50. The novel chlorinated polyethylene rubber compound material and the method have the advantage that the novel chlorinated polyethylene rubber compound material is excellent in ageing resistance, ozone resistance, flame retardance andmechanical property and low in cost and can be used for preparing the flame-retardant building sealing strips. The invention further provides a method for preparing the sealing strips.

Description

technical field [0001] The invention relates to a new composite material of chlorinated polyethylene rubber, more specifically, to a new composite material of chlorinated polyethylene used for preparing sealing strips and a preparation method thereof. Background technique [0002] Chlorinated polyethylene is an important polymer material prepared by chlorine substitution reaction of polyethylene, and can also be regarded as a terpolymer of ethylene, vinyl chloride and 1,2-dichloroethylene. According to its properties and uses, it can be divided into two categories: resin type products (CPE) and rubber type products (CM rubber). The former has higher relative molecular weight, mechanical strength, melting temperature and plasticizing temperature, and is mainly used for general purpose. Resin PVC, ABS, PP, PE and other weather resistance and impact modifiers; the latter has moderate mechanical strength and flexibility, low melt viscosity and plasticizing temperature, and is ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/28C08L91/06C08K13/02C08K5/12C08K5/09C08K3/04C08K3/34C08K5/47
CPCC08L23/286C08L2201/02C08L2201/08C08L91/06C08K13/02C08K5/12C08K5/09C08K3/04C08K3/346C08K5/47
Inventor 李玉平虢湘刿高旭东刘毓红孙锦伟
Owner HANGZHOU KELI CHEM CO LTD
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