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Heat-resistant natural rubber and preparation method thereof

A natural rubber and heat-resistant technology, which is applied in the field of resistant modified natural rubber and its preparation, can solve the problems of low heat aging performance, achieve good heat resistance, improve heat resistance, and improve thermal environment performance

Inactive Publication Date: 2016-12-07
建新赵氏科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, the products of the prior art have low thermal aging properties and are difficult to meet the problems and deficiencies of the automotive industry's increasing requirements for rubber products.

Method used

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  • Heat-resistant natural rubber and preparation method thereof
  • Heat-resistant natural rubber and preparation method thereof
  • Heat-resistant natural rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] Product name: heat-resistant modified natural rubber material used for automobile chassis vibration damping products;

[0023] formula:

[0024] Formula unit is weight percent;

[0025] Rubber raw materials; natural rubber, 51%

[0026] Rubber raw material: EPDM rubber, 13.5%;

[0027] Reinforcing agent: quick-pressed carbon black, 17.5%;

[0028] Reinforcing agent; silica, 7.5%

[0029] Plasticizer: paraffin oil, 4.2%;

[0030] Active agent: zinc oxide 3.2%;

[0031] Vulcanizing agent: sulfur, 0.9%;

[0032] Processing aids: Accelerator, 2.2%;

[0033] preparation:

[0034] Preparation conditions, equipment

[0035] Ambient pressure: one atmosphere;

[0036] Ambient temperature: room temperature;

[0037] Preparation equipment: XK-660 open rubber mixer, FARREL K6 internal mixer;

[0038] Preparation process: mixing;

[0039] Step 1. Preheat the internal mixer with water, control the temperature of the internal mixer working room to <50°C, and the speed of ...

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Abstract

The invention discloses heat-resistant natural rubber and a preparation method thereof. The heat-resistant natural rubber is characterized by being prepared from the following ingredients: 48 to 53 weight percent of natural rubber, 8 to 14 weight percent of ethylene propylene diene rubber, 12 to 18 weight percent of fast extruding furnace carbon black, 4 to 8 weight percent of white carbon black, 3 to 6 weight percent of paraffin oil, 2.2 to 3.5 weight percent of zinc oxide, 0.6 to 1.2 weight percent of sulphur and 1.5 to 2.3 weight percent of accelerants. The natural rubber is subjected to heat-resistant performance modification by using the ethylene propylene diene rubber as a modifying agent and matching a reasonable sulfuration promotion system; the heat-resistant performance of the natural rubber is improved; the heat-resistant natural rubber is provided; an automobile chassis vibration attenuation product can be manufactured by the modified natural rubber material; the goals of improving the heat-resistant performance and meeting the increasingly increase requirement of automobile industry on the rubber product are achieved.

Description

technical field [0001] The invention relates to the technical field of modified rubber materials, in particular to a resistant modified natural rubber and a preparation method thereof. Background technique [0002] The existing technology uses natural rubber materials to make automobile chassis vibration damping products. With the increasing technical indicators of the automobile industry, the existing natural rubber is difficult to meet the standard requirements of the heat-resistant and aging material properties of the products; [0003] The test data of the automobile chassis damping product that prior art natural rubber material is made is as follows: [0004] Standard specification (TL52716): [0005] [0006] Conclusion: From the above thermal aging performance analysis, many performances are unqualified; [0007] Therefore, the products of the prior art have the problems and deficiencies of low thermal aging performance and difficulty in meeting the increasing re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L23/16C08L91/06C08K13/02C08K3/04C08K3/36C08K3/22C08K3/06C08K5/47C08K5/40C08K5/39
CPCC08L7/00C08L2201/08C08L2205/03C08L23/16C08L91/06C08K13/02C08K3/04C08K3/36C08K2003/2296C08K3/06C08K5/47C08K5/40C08K5/39
Inventor 李恒荣田安伟胡余优刘杰丁斌煊陈讯
Owner 建新赵氏科技股份有限公司
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