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A kind of high temperature resistant acrylate rubber and preparation method thereof

An acrylate and high-temperature-resistant technology, which is applied in the field of acrylate rubber, can solve the problems that the high-temperature resistance of acrylate rubber is difficult to meet the requirements, so as to improve resin dispersion and contact stability, increase cross-linking density, and improve heat resistance Effect

Inactive Publication Date: 2018-06-12
SHENZHEN HANYUXIN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on its excellent performance, its application fields are becoming wider and wider, and the requirements for its various properties are getting higher and higher. The requirements for high temperature resistance of acrylic rubber are also gradually increasing. fulfil requirements

Method used

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  • A kind of high temperature resistant acrylate rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of high-temperature-resistant acrylate rubber, the specific method is: step (1): take 25 parts by weight of solvent into the reactor, heat to 100 ° C, and then add 40 parts by weight of hard monomer methyl methacrylate, soft sheet 12 parts by weight of n-butyl acrylate, 3 parts by weight of hydroxyethyl acrylate, 3 parts by weight of epoxy acrylate, 6 parts by weight of benzyl methacrylate, 3 parts by weight of 2-hydroxyethyl methacrylate phosphate, In the core-shell microspheres, 4 parts by weight of each of the three types of microspheres with silica as the shell and lead-zinc-tin as the core and 1.2 parts by weight of the initiator are mixed evenly, and are added dropwise into the reactor at a uniform speed. The dropping process is completed in 1.5 hours. , continue to react for 1h; Step (2): 3 parts by weight of hydroxyethyl acrylate, 3 parts by weight of epoxy acrylate, 6 parts by weight of benzyl methacrylate, 3 parts by weight of 2-hydroxyet...

Embodiment 2-3 and comparative example 1-7

[0022] The preparation methods of Examples 2-3 and Comparative Examples 1-6 are the same as those of Example 1, the only difference being the difference in components and dosage, see the table below for details. In the preparation method of Comparative Example 7, the filler and the core-shell microspheres were added at the same time, and the components and dosage were the same as in Example 1.

[0023]

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Abstract

The invention provides a high-temperature-resistant acrylate rubber, which uses 30-45 parts by weight of methyl methacrylate as a hard monomer, 10-15 parts by weight of n-butyl acrylate as a soft monomer, 30-35 parts by weight of a functional monomer, and fillers 20-30 parts by weight, 10-15 parts by weight of special core-shell microspheres, 2-4 parts by weight of initiator, 1-3 parts by weight of vulcanizing agent, 30-60 parts by weight of solvent; the functional monomer contains hydroxyl, carboxyl , one or more of epoxy groups, aromatic groups, and phosphate groups. The invention integrates multiple means for improving high-temperature resistance and cooperates with each other to obtain acrylate rubber with excellent high-temperature resistance, which can meet the needs of the prior art.

Description

technical field [0001] The invention relates to an acrylic rubber, in particular to a high temperature resistant acrylic rubber. Background technique [0002] Acrylate rubber is a rubber made of acrylate polymer as the main component. It has heat resistance like silicone rubber and fluororubber and oil resistance like fluororubber, epichlorohydrin rubber and nitrile rubber. It can be used in automotive parts that require heat resistance and lubricating oil resistance, such as various seals near the engine, gaskets, packings, turbine hoses, etc. [0003] Based on its excellent performance, its application fields are becoming wider and wider, and the requirements for its various properties are getting higher and higher. The requirements for high temperature resistance of acrylic rubber are also gradually increasing. fulfil requirements. Therefore, there is an urgent need for an acrylate rubber with excellent high temperature resistance to meet the needs of the prior art. C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/12C08K13/06C08K9/06C08K3/04C08K3/22C08K5/19C08K5/098C08F220/14C08F220/18C08F220/28C08F220/32C08F230/02C08F2/44
CPCC08F2/44C08F220/14C08K3/04C08K3/042C08K3/22C08K5/098C08K5/19C08K7/00C08K7/16C08K9/06C08K13/06C08L2201/08C08K2003/2227C08L33/12C08L43/02C08F220/1804C08F220/20C08F220/1807C08F220/32C08F230/02C08F220/281C08F220/18
Inventor 马晓均
Owner SHENZHEN HANYUXIN ELECTRONICS TECH
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