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High-performance carboxylic acid type acrylate rubber formula for injection process

A high-performance carboxylic acid and acrylate technology, applied in the field of high-performance carboxylic acid-type acrylate rubber formulation, can solve the problem of difficulty in meeting the requirements of high heat resistance, high oil resistance and high performance, immature synthesis technology, and poor production process technology. problems, to achieve the effect of improving practicability and safety, improving mechanical properties, and good fluidity

Inactive Publication Date: 2020-09-04
广东天诚密封件股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional chlorine-containing and double-crosslinked acrylate rubbers can no longer meet the complex and changeable automotive working conditions and the harsh material performance requirements of the test, but due to the high elasticity, fast heat generation and Mooney stability of carboxylic acid acrylate rubber The industry has no experience or technology to solve the above problems, such as poor performance, immature synthesis process technology, poor production process process (sticky mold, serious mold contamination), etc. The high heat resistance and high performance new carboxylate acrylate rubber for injection molding process The formula is a blank in the industry
[0003] With the continuous improvement of the working conditions and service life of the sealing parts of the automobile supporting manufacturers, the corresponding performance requirements for the rubber materials also need to be continuously improved, especially for the heat resistance, oil resistance, and low-pressure deformation performance requirements of the materials, which are currently used in the market. Acrylic rubber materials have been difficult to meet the high performance requirements of high heat resistance, high oil resistance and low pressure change

Method used

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  • High-performance carboxylic acid type acrylate rubber formula for injection process

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Embodiment Construction

[0038] Embodiment 1~Example 5 provide the high-performance carboxylic acid type acrylate rubber formula for injection process according to the present invention, and its raw material composition (by weight) is as shown in Table 1:

[0039] Table 1:

[0040] components Example 1 Example 2 Example 3 Example 4 Example 5 CT 90.00 70.00 75.00 85.00 80.00 CT-2 0.00 25.00 0.00 0.00 0.00 CT-4 0.00 0.00 10.00 10.00 15.00 GLS 10.00 5.00 15.00 5.00 5.00 N550 30.00 45.00 30.00 30.00 30.00 N330 27.00 20.00 20.00 20.00 20.00 N990 25.00 5.00 0.00 20.00 20.00 N774 0.00 0.00 10.00 0.00 0.00 SA 1.50 1.50 1.50 1.50 1.50 445 2.00 2.00 2.00 2.00 2.00 WS280P 1.00 1.00 2.00 2.00 1.00 Simethicone 0.50 0.50 1.00 2.00 2.00 Graphite F1 2.00 1.00 0.00 0.00 0.00 KD-1 0.90 0.90 1.20 1.20 1.40 DOTG 2.00 2.00 2.00 2.70 2.50 18D 0.60 1.00 0.80...

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Abstract

The invention relates to a high-performance carboxylic acid type acrylate rubber formula for an injection process, and is suitable for a sealing material with high temperature resistance grade, strongweather resistance and small compression set. The formula comprises raw rubber, a vulcanizing agent, an accelerant, an anti-aging agent, stearic acid, carbon black, an internal releasing agent, a plasticizer, an anti-scorching agent, a flow aid and resin TMV. The TMV resin which is not used in a common rubber formula is creatively added into the formula, the TMV resin not only increases the stiffness of the rubber, but also greatly reduces the viscosity of the acrylate rubber, improves the demolding performance of the product, greatly improves the physical and mechanical properties of the material, and meanwhile, the tensile property of the material is greatly improved, the vulcanization time is properly prolonged and the processability is improved by using the ethylene acrylate rubber GLS. Therefore, the formula has unique industry advancement and formula innovation.

Description

technical field [0001] The invention relates to a high-performance carboxylic acid type acrylate rubber formula used in injection technology, which is suitable for sealing materials with high temperature resistance, strong weather resistance and small compression permanent deformation. Background technique [0002] Traditional chlorine-containing and double-crosslinked acrylate rubbers can no longer meet the complex and changeable automotive working conditions and the harsh material performance requirements of the test, but due to the high elasticity, fast heat generation and Mooney stability of carboxylic acid acrylate rubber The industry has no experience or technology to solve the above problems, such as poor performance, immature synthesis process technology, poor production process process (sticky mold, serious mold contamination), etc. The high heat resistance and high performance new carboxylate acrylate rubber for injection molding process The formula is even more bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/04C08L23/08C08L83/04C08K13/02C08K3/04C08K5/09C08K5/17C08K5/31
CPCC08L33/04C08L2201/08C08L2205/025C08L2205/035C08L23/0869C08L83/04C08K13/02C08K3/04C08K5/09C08K5/17C08K5/31
Inventor 陈思东孙少佳李建文周培肯黄学敏潘梓彬
Owner 广东天诚密封件股份有限公司