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Addition type flame retardant liquid silicon resin and preparation method thereof

A liquid silicon, addition type technology, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, etc., can solve the problem of insufficient flame retardant performance, high energy consumption, storage Insufficient storage stability and other problems, to achieve good flame retardancy and heat resistance, improve the effect of flame retardant performance

Inactive Publication Date: 2011-10-19
HUANGSHAN QIANGLU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a kind of additive type flame retardant liquid silicone resin, solve the existing liquid silicone resin used for the surface coating of materials such as glass fiber casing, silicone tube, glass fiber cloth, especially the insufficient flame retardant performance, Insufficient storage problem
[0010] A further object of the present invention is to provide a method for preparing an addition-type flame-retardant liquid silicone resin, which solves the problems of long time consumption and high energy consumption in the existing liquid silicone resin preparation method

Method used

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  • Addition type flame retardant liquid silicon resin and preparation method thereof
  • Addition type flame retardant liquid silicon resin and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0024] Embodiment 1. Preparation of an addition-type flame-retardant liquid silicone resin,

[0025] In parts by weight, it includes 100-130 parts of base resin branched-chain phenyl vinyl siloxane, 50-80 parts of reactive diluent linear phenyl vinyl siloxane, and cross-linking agent linear phenyl modified containing 0.5-1.0 parts of hydrogen siloxane, 0.01-0.05 parts of chloroplatinic acid-divinyltetramethyldisiloxane catalyst, 0.001-0.01 parts of temperature-sensitive inhibitor dimethyl fumarate (DMF);

Embodiment 2

[0026] Embodiment 2, the synthesis of basic silicone resin branched chain type phenyl vinyl siloxane

[0027] Raw material components: in parts by weight, 25-35 parts of phenyltrichlorosilane, 2-5 parts of phenyldimethylchlorosilane, 100-120 parts of diphenyldichlorosilane, 50- 60 parts, 10-15 parts of methyl vinyl dichlorosilane, 150-200 parts of a solvent selected from toluene, butyl acetate, and isopropanol, hydrolyzed for 12-18 hours, and co-hydrolyzed and condensed the above monomers and solvents to obtain The hydrolyzate is then heated and polycondensed for 6-12 hours under the action of 4-10 parts of catalyst (concentrated hydrochloric acid) to obtain the basic silicone resin.

Embodiment 3

[0028] Embodiment 3, the synthesis of linear phenyl vinyl siloxane

[0029] In parts by weight, put 150-170 parts of bis(methylphenylvinyl)disiloxane and 240-260 parts of diphenyldimethoxysilane into the reactor, raise the temperature to 80°C-105°C, add Appropriate amount of water 30-40 parts and catalyst (concentrated hydrochloric acid) 6-8 parts, react for 4-8 hours and neutralize with 2.5-5 parts of alkali sodium hydroxide to obtain linear phenyl vinyl siloxane.

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Abstract

The invention provides addition type flame retardant liquid silicon resin. The addition type lame retardant liquid silicon resin comprises the following components in parts by weight: 100-130 parts of basic resin branched-chain phenylvinylsiloxane, 50-80 parts of active diluting agent linear phenylvinylsiloxane, 0.5-1.0 part of cross-linking agent linear phenyl modified hydrogen-containing siloxane, 0.01-0.05 part of chloroplatinic acid-divinyltetramethyldisiloxane catalyst and 0.001-0.01 part of temperature-sensitive inhibitor dimethyl fumarate. In the processes of preparing the basic silicon resin, an active diluting agent and a cross-linking agent, phenyl is used for pre-modifying so that the flame retardant property, the high-temperature resistance and the volume resistance of the product are greatly improved.

Description

technical field [0001] The invention relates to a silicone resin and a preparation method thereof, in particular to an addition-type flame-retardant liquid silicone resin used for surface coating of glass fiber sleeves, silicone tubes, glass fiber cloth and the like and a preparation method thereof. Background technique [0002] Silicone resins are thermosetting polysiloxane polymers with a highly cross-linked structure. The early products are made of organochlorosilanes (such as MeSiCl3, Me2SiCl2, MePhSiCl2, PhSiCl3, Ph2SiCl2) through hydrolytic condensation and rearrangement to make active siloxane prepolymers that are stable at room temperature. When applied, it is further heated to shrink and cross-link into a harder or less elastic solid silicone. Silicone resin has good electrical insulation properties, temperature resistance and waterproof effect. And the weather resistance is better than general organic resin. Therefore, it is an ideal material for the coating of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05C08G77/20B01J31/22
Inventor 李讨饭赵强程琳根王晶李萍
Owner HUANGSHAN QIANGLU NEW MATERIALS
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