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Preparation method of high-heat-resistance rubber

A high heat-resistant, rubber technology, applied in the rubber field, can solve the problem of becoming a conductor, etc., and achieve the effects of good mechanical stability, simple production method, and convenience for local materials.

Inactive Publication Date: 2018-07-13
黄燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is an insulator and does not conduct electricity easily, but it may become a conductor if it is exposed to water or a different temperature

Method used

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  • Preparation method of high-heat-resistance rubber
  • Preparation method of high-heat-resistance rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] High heat resistance rubber preparation method:

[0029] 100 parts by weight of methyl vinyl silicone rubber, 3 parts by weight of phenyl silicone oil, 3 parts by weight of paraffin, 15 parts by weight of 2,5-dimethyl-2,5-bis-(tert-butylperoxy)hexane, 2 parts by weight of vinyl tris (2-methoxyethoxy) silane, 2 parts by weight of 2-thiol imidazoline, 4.5 parts by weight of heat stabilizer and 3 parts by weight of inorganic antibacterial agent were stirred at 400 rpm for 10 minutes Mix evenly to obtain a mixture, then add the mixture to a banbury mixer for banburying, the banbury temperature is 180°C, the time is 10 minutes, and the speed is 100 rpm to obtain a banbury product; place the banbury product in The vulcanization is carried out in an oven, and the temperature of the oven is kept at 180° C. for 10 hours. The high heat-resistant rubber of Example 1 was obtained.

[0030] The inorganic antibacterial agent is obtained by stirring and uniformly mixing magnesium al...

Embodiment 2

[0033] It is basically the same as Example 1, except that the inorganic antibacterial agent is obtained by stirring and mixing magnesium titanate and magnesium tungstate at a mass ratio of 1:1. The high heat-resistant rubber of Example 2 was obtained.

Embodiment 3

[0035] It is basically the same as in Example 1, except that the inorganic antibacterial agent is obtained by stirring and mixing uniformly magnesium aluminate and magnesium tungstate at a mass ratio of 1:1. The high heat-resistant rubber of Example 3 was obtained.

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Abstract

The invention discloses a preparation method of a high-heat-resistance rubber. The preparation method comprises the following steps: uniformly mixing 95-105 parts by weight of methyl vinyl silicone rubber, 1-5 parts by weight of phenyl silicone oil, 1-5 parts by weight of paraffin, 10-20 parts by weight of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, 1-3 parts by weight of vinyl-tris(2-methoxyethoxy)silane, 1-5 parts by weight of 2-mercaptoimidazoline, 1-10 parts by weight of a heat stabilizer and 1-10 parts by weight of an inorganic antibacterial agent, performing internal mixing for 6-15 minutes at the internal mixing temperature of 120-200 DEG C at the rotation speed of 40-120 rpm to obtain an internal mixing product; placing the internal mixing product in a drying oven for vulcanization for 5-25 hours at the temperature 160-200 DEG C. The preparation method of the high-heat-resistance rubber is simple, the requirements of materials are low, local materials can be obtained conveniently, and large-scale processing and manufacturing can be met, the non-toxic auxiliary additive is added, so that the product is excellent in performance and has the characteristics of high melting point, good thermal stability, corrosion resistance, good mechanical stability and the like.

Description

technical field [0001] The invention relates to a rubber, in particular to a method for preparing high heat-resistant rubber. Background technique [0002] Rubber is divided into natural rubber and synthetic rubber according to raw materials. According to the shape, it can be divided into block raw rubber, latex, liquid rubber and powder rubber. Latex is a colloidal water dispersion of rubber; liquid rubber is an oligomer of rubber, which is generally a viscous liquid before vulcanization; powder rubber is processed from latex into powder to facilitate batching and processing. The thermoplastic rubber developed in the 1960s does not require chemical vulcanization, but is formed by the processing method of thermoplastics. Rubber is divided into two types: general-purpose and special-purpose according to the use. It is an insulator and does not conduct electricity easily, but if it is exposed to water or a different temperature, it may become a conductor. Conduction is the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/04C08L91/06C08K13/02C08K3/24C08K5/14C08K5/5425C08K5/37
CPCC08K2201/003C08K2201/014C08L83/04C08L2201/08C08L2205/025C08L2205/03C08L91/06C08K13/02C08K3/24C08K5/14C08K5/5425C08K5/37
Inventor 黄燕
Owner 黄燕