Flame retardant carbon-forming agent poly(terephthalate) dimethic acid polymer and preparation method thereof

A technology of dimethyl silicic acid and phenylene diester, which is applied in the field of silicon-based flame-retardant char-forming agent polydimethylsilicate terephthalate polymer and its preparation, can solve the problems of poor processing performance, low decomposition temperature, Easy to absorb water and other problems, to achieve the effect of excellent flame retardant effect, high decomposition temperature and low volatility
CN104710619BActive Publication Date: 2018-08-21HUZHOU RUIGAO NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUZHOU RUIGAO NEW MATERIALS CO LTD
Publication Date
2018-08-21

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Abstract

The invention relates to a polydimethyl silicate terephthalic diester polymer as a flame-retardant charring agent and a preparation method thereof. The structural formula of the polymer is shown in the description, and in the structural formula, n is equal to 20-50. The preparation method comprises the following steps: in the presence of triethylamine, enabling hydroquinone to react with equimolar dimethyl dihalide silane in an organic solvent, or enabling hydroquinone sodium to react with equimolar dimethyl dihalide silane in an organic solvent, and performing purification so as to obtain polydimethyl silicon acid terephthalic diester. The polydimethyl silicate terephthalic diester disclosed by the invention is high in molecular weight, is good in material compatibility, is not easy to separate out, is good in charring performance, and is suitable for being used as a flame-retardant charring agent of polyolefine, polyester, polyamide, an epoxy resin, an unsaturated resin and the like. The production technology is simple, the cost is low, and the industrialized production is easy to realize.
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Description

technical field

[0001] The invention relates to a silicon-based flame-retardant char-forming agent polydimethylsilicate terephthalate polymer and a preparation method thereof. The polymer is suitable for use in polyolefins, polyesters, polyamides, epoxy resins, unsaturated Flame retardant char forming agent for resin etc. Background technique

[0002] The most effective way to solve the flammability problem of synthetic polymer materials is to add flame retardants to the materials, but flame retardants can generally prevent and slow down the burning of materials or make materials more flammable, and cannot change the melting phase of materials when heated. The characteristic of change, that is, when the material is burned at high temperature, it will become a liquid flow or drip, which will move with the flame and cause secondary combustion. In order to solve the flammability and dripping problems of synthetic materials, the most effective method is to add a char-forming ag...

Claims

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