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Preparation method of 2-amino-3-fluoro-5-trifluoromethylpyridine modified GO flame-retardant silicone rubber

A technology of trifluoromethylpyridine and silicone rubber, which is applied in the field of preparation of 2-amino-3-fluoro-5-trifluoromethylpyridine modified GO flame-retardant silicone rubber, which can solve the problem of small improvement in mechanical properties and flame-retardant Solve the problems of large amount of additives, high curing temperature, etc., to achieve a wide range of use, improve flame retardancy, and improve mechanical properties

Inactive Publication Date: 2020-05-01
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN 106118065 A discloses an intumescent flame retardant silicone rubber and its preparation method. The disadvantage of this flame retardant is that the curing temperature is high and the amount of flame retardant added is large, which will cause the fluidity of the rubber to change during processing. Poor, affecting the processing performance and mechanical properties of rubber
[0005] Chinese patent CN103146199 A discloses a method comprising polytitanium organosiloxane, methylphenyl vinyl silicone rubber, hexamethyldisilazane, bis-pentasulfurizing agent, fumed silica and phosphate flame retardant, The silicone rubber product produced by this invention has high flame-retardant properties and is suitable for applications in the field of inflammable and explosive fields, but its mechanical properties have little improvement

Method used

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  • Preparation method of 2-amino-3-fluoro-5-trifluoromethylpyridine modified GO flame-retardant silicone rubber
  • Preparation method of 2-amino-3-fluoro-5-trifluoromethylpyridine modified GO flame-retardant silicone rubber
  • Preparation method of 2-amino-3-fluoro-5-trifluoromethylpyridine modified GO flame-retardant silicone rubber

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Effect test

Embodiment 1

[0033] Weigh 100 parts of 107 glue, add 1 part of silica treated with silane coupling agent, 10 parts of inorganic flame retardant, 0.5 part of the flame retardant assistant described in claim 1, and stir at 80 °C under vacuum conditions 2h; after stirring, the temperature was lowered to room temperature, then crosslinking agent and organic tin catalyst were added, stirred evenly, and cured at room temperature to obtain room temperature vulcanized rubber.

Embodiment 2

[0035] Weigh 100 parts of 107 glue, then add 1 part of silica treated with silane coupling agent, 10 parts of inorganic flame retardant, and 1 part of the flame retardant assistant described in claim 1, and stir under vacuum at 80 °C. 2h; after stirring, the temperature was lowered to room temperature, then crosslinking agent and organic tin catalyst were added, stirred evenly, and cured at room temperature to obtain room temperature vulcanized rubber.

Embodiment 3

[0037] Weigh 100 parts of 107 glue, add 1 part of silica treated with silane coupling agent, 10 parts of inorganic flame retardant, and 1.5 parts of the flame retardant assistant described in claim 1, and stir at 80 °C under vacuum conditions. 2h; after stirring, the temperature was lowered to room temperature, then crosslinking agent and organic tin catalyst were added, stirred evenly, and cured at room temperature to obtain room temperature vulcanized rubber.

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Abstract

The invention relates to a preparation method of 2-amino-3-fluoro-5-trifluoromethylpyridine modified GO flame-retardant silicone rubber and relates to a preparation method of flame-retardant siliconerubber. In the invention, flame-retardant silicone rubber 107 glue is used as a base material; a reinforcing agent is fumed silica treated by a silane coupling agent KH550; an inorganic flame retardant is MDH; the flame retardant additive is 2-amino-3-fluoro-5-trifluoromethylpyridine modified GO (graphene oxide); organotin is used as catalyst, and the cross-linking agent is DTBP. The preparation method comprises a chemical process for introducing 2-amino-3-fluoro-5-trifluoromethylpyridine into GO to be used as the flame retarding additive of silicone rubber, so that the cured silicone rubber flame retardant has the advantages of good flame retardant property, tensile strength and tearing strength; compared with the traditional silicone rubber, the silicone rubber as the flame retardant additive has the advantages that the flame retardant property of the silicone rubber is effectively improved, and the application range of the silicone rubber is wider.

Description

technical field [0001] The invention relates to a preparation method of 2-amino-3-fluoro-5-trifluoromethylpyridine modified GO flame-retardant silicone rubber, in particular to a 2-amino-3-fluoro-5-trifluoromethyl pyridine Preparation method of pyridine modified GO flame retardant silicone rubber. Background technique [0002] Graphene oxide, as a single-layer material exfoliated from graphite oxide, can exist stably in aqueous solutions and polar solvents due to the introduction of a large number of oxygen-containing groups on the surface and edges. After oxidation treatment, graphene oxide still maintains a layered structure, but many oxygen functional groups are introduced into the graphene monolith of each layer. The introduction of these oxygen functional groups makes the single graphene structure very complicated. [0003] Silicone rubber is a kind of polymer elastomer with both organic and inorganic properties. Its main chain structure is that silicon atoms and oxyg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08K9/04C08K3/04C08K7/26C08K13/06
CPCC08K7/26C08K9/04C08K13/06C08L2201/02C08K3/042C08L83/04
Inventor 葛铁军谢天齐张美玲施智超张扬向平
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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