Organic silicon rubber

A technology of silicone rubber and fluorosilicone rubber, which is applied in the field of rubber, can solve the problem that the comprehensive performance of silicone rubber cannot meet the requirements of harsh environments, and achieve the effect of excellent mechanical properties

Inactive Publication Date: 2019-03-08
CHANGSHA XIAORU INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a silicone rubber to solve the technical problem tha

Method used

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  • Organic silicon rubber

Examples

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Comparison scheme
Effect test

Embodiment 1

[0028] An organosilicon rubber is prepared through the following steps:

[0029] (1) Low-phenyl silicone rubber, fluorosilicone rubber modified by sucrose polyester, structure control agent and organic modified silicon powder are mixed with a kneader to obtain a mixture;

[0030] (2) Add vulcanizing agent and 2,4-pentadienoate zinc salt to the mixture, mix well and treat at 140°C for 2 hours, then heat it under vacuum for 25 minutes, cool to room temperature (25°C) and discharge it to obtain Rubber compound

[0031] (3) After cutting and compression molding the rubber mixture, use a hot press at 200°C and 15MPa for 10 minutes to obtain a shaped vulcanized product;

[0032] (4) Put the shaped vulcanized product in an oven and place it at 250°C for 10 hours, and it will be obtained.

[0033] Among them, the mass ratio of low phenyl silicone rubber, sucrose polyester modified fluorosilicone rubber, structure control agent, organic modified silicon powder, vulcanizing agent and zinc salt o...

Embodiment 2

[0041] An organosilicon rubber is prepared through the following steps:

[0042] (1) Low-phenyl silicone rubber, fluorosilicone rubber modified by sucrose polyester, structure control agent and organic modified silicon powder are mixed with a kneader to obtain a mixture;

[0043] (2) Add vulcanizing agent and zinc salt of 2,4-pentadienoate to the mixture, mix well and treat at 180°C for 3 hours, then heat it under vacuum for 40 minutes, cool to room temperature (25°C), and discharge it. Rubber compound

[0044] (3) After cutting and compression molding the rubber mixture, use a hot press at 220°C and 20MPa for 15 minutes to obtain a shaped vulcanized product;

[0045] (4) Place the shaped vulcanized product in an oven and place it at 300°C for 12 hours, and it is ready.

[0046] Among them, the mass ratio of low phenyl silicone rubber, sucrose polyester modified fluorosilicone rubber, structure control agent, organic modified silicon powder, vulcanizing agent and zinc salt of 2,4-penta...

Embodiment 3

[0054] An organosilicon rubber is prepared through the following steps:

[0055] (1) Low-phenyl silicone rubber, fluorosilicone rubber modified by sucrose polyester, structure control agent and organic modified silicon powder are mixed with a kneader to obtain a mixture;

[0056] (2) Add vulcanizing agent and zinc salt of 2,4-pentadienoate to the mixture, mix well and treat at 140°C for 3 hours, then heat it under vacuum for 25 minutes, cool to room temperature (25°C), and discharge. Rubber compound

[0057] (3) After the rubber mixture is cut and compression molded, it is hot-pressed with a hot press at 220°C and 15MPa for 15 minutes to obtain a shaped vulcanized product;

[0058] (4) Put the shaped vulcanized product in an oven and place it at 250°C for 12 hours to get it.

[0059] Among them, the mass ratio of low phenyl silicone rubber, sucrose polyester modified fluorosilicone rubber, structure control agent, organic modified silicon powder, vulcanizing agent and zinc salt of 2,4-...

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Abstract

The invention provides organic silicon rubber which is prepared by the following steps: (1) mixing low-phenyl silicon rubber, saccharose polyester modified fluorinated silicone rubber, a structure controller and organic modified silicon micro powder by using a kneading machine so as to obtain a mixture; (2) putting a vulcanizing agent and a 2,4-pentadienoic acid zinc salt into the mixture, uniformly mixing, treating for 2-3 hours at 140-180 DEG C, heating for 25-40 minutes at a vacuum state, cooling to the room temperature, and discharging so as to obtain blended rubber; (3) cutting the blended rubber, carrying out mold pressing, carrying out hot pressing for 10-15 minutes by using a hot press at 200-220 DEG C at 15-20MPa so as to obtain a molded vulcanization product; (4) placing the molded vulcanization product into an oven for 10-12 hours at 250-300 DEG C, so as to obtain the organic silicon rubber. The organic silicon rubber provided by the invention has an excellent mechanical property, and is aging resistance, wearing resistance and oil resistance.

Description

Technical field [0001] The present invention relates to the technical field of rubber, in particular, to a silicone rubber. Background technique [0002] Silicone rubber, also known as organosiloxane or silicone rubber, is a linear high molecular polymer with -Si-O-bond as the main molecular chain and monovalent organic groups as side groups. According to the vulcanization temperature, it is divided into high temperature and room temperature vulcanized silicon Two types of rubber. Silicone rubber has excellent properties, including high weather resistance and electrical properties, reduced compression set, high heat resistance and cold resistance, and is widely used in many fields, such as electronic equipment, automobiles, construction and food. [0003] In view of the advantages of silicone rubber, it is widely used in some harsh environments, and with it comes higher requirements for its performance, including its mechanical properties, aging resistance, abrasion resistance, an...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L83/08C08K9/06C08K9/02C08K9/04C08K3/36C08K5/098
CPCC08L83/04C08L83/08C08K9/06C08K9/02C08K9/04C08K3/36C08K5/098
Inventor 不公告发明人
Owner CHANGSHA XIAORU INFORMATION TECH CO LTD
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