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A kind of heat-resistant neoprene composition

A chloroprene rubber and composition technology, applied in the field of rubber, can solve the problems of thermal aging and other poor performance, affecting the service life of rubber products, etc., achieve good heat resistance, improve safety and service life, and improve heat resistance Effect

Inactive Publication Date: 2011-12-14
TIANJIN PENGYI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of the automobile industry, the amount of neoprene used in the automobile industry continues to increase, and the working temperature continues to increase. Ordinary neoprene products show poor performance such as thermal aging, which affects the service life of rubber products.

Method used

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  • A kind of heat-resistant neoprene composition
  • A kind of heat-resistant neoprene composition
  • A kind of heat-resistant neoprene composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0013] In parts by mass

[0014]

[0015] Carry out the usual mixing and processing according to the raw materials and dosage in the listed composition:

[0016] 1. Rubber and raw material weighing

[0017] 2. One stage of internal refining-one stage of refining-the next film

[0018] 3. The second stage of internal refining - the second stage of refining - the next film

[0019] 4. Vulcanized film

[0020] 5. Cut the style according to the standard

[0021] 6. Carry out experimental testing

[0022] The following is a summary of test results using polyurethane rubber to improve the heat resistance of neoprene:

[0023]

[0024] Through the summary of the above tests, the selection of polyurethane rubber to improve the heat resistance of chloroprene rubber has significantly improved the heat resistance compared with the traditional chloroprene rubber formulation.

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Abstract

The invention relates to a heat-resistant chloroprene rubber composition; the composition is chloroprene rubber, polyurethane rubber, sulfur, accelerator DM, accelerator PTD, carbon black, rapid press furnace black, anti-aging agent RD, nonylated di Aniline, coumarone resin, epoxy octyl stearate, butanediol dimethacrylate and γ-aminopropyl triethoxysilane; wherein: the sum of the parts of neoprene rubber and polyurethane rubber is 100 parts. By adding polyurethane rubber to chloroprene rubber and under the joint action of various additives, the heat resistance of chloroprene rubber has been further improved. The heat resistance temperature has reached 155°C, and the short-term heat resistance can last for 120 hours. And other properties of the rubber have not changed significantly, and the heat resistance effect is good. The improvement of the heat resistance of neoprene rubber also improves the use value of rubber. Neoprene materials and their products can play a better role in the automotive field, petrochemical and other fields, and improve the safety and service life of the products.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a heat-resistant chloroprene rubber composition. Background technique [0002] Rubber materials and products are widely used in various fields such as automobile machinery, metallurgy, coal, cement building materials, petrochemical industry, and aerospace. From tires, tapes, hoses, and various rubber parts, most of them put forward strict requirements on the heat resistance of rubber materials, and become the basic conditions and main performance indicators for selection. The heat resistance of rubber not only affects the working performance of the product, but also determines its safety and service life. [0003] Neoprene rubber is a kind of polymer elastomer polymerized from 2-chloro-1,3-butadiene. As a general-purpose special rubber, it not only has good physical and mechanical properties, but also has good weather resistance, heat resistance, and chemical corrosion resistanc...

Claims

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Application Information

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IPC IPC(8): C08L11/00C08L75/04C08L45/02C08K13/02C08K3/06C08K3/04C08K5/18C08K5/1515C08K5/103C08K5/544
Inventor 张洪起杨健
Owner TIANJIN PENGYI GRP CO LTD
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