Preparation method and application of flame-retardant polyether

A technology of flame-retardant polyether and reaction, which is applied in the field of preparation of organic polymer compounds, can solve problems such as poor flame-retardant effect, escape of external flame retardant, and impact on the quality of polyurethane materials, and achieve good foam quality and flame-retardant Obvious effect

Active Publication Date: 2015-01-21
JURONG NINGWU NEW MATERIAL CO LTD BY SHARES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the quality of polyurethane materials prepared by adding flame retardants is affected, and the...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A flame-retardant preparation method, which uses ethylenediamine, tris(3-hydroxypropyl)phosphine, and dibromoneopentyl glycol as initiators; dimethylamine as a catalyst; and propylene oxide ring-opening polymerization reaction to prepare . Including the following steps:

[0015] The parts by weight of raw materials are: 5 parts of ethylenediamine (Nanjing Gutian Chemical Co., Ltd.); 30 parts of tris(3-hydroxypropyl)phosphine (Tianjin Luyuan Tianmei Technology Co., Ltd.); Chemical Co., Ltd.) 23 parts; dimethylamine (Nanjing Gutian Chemical Co., Ltd.) 2.0 parts; dimethylamine is an aqueous solution of dimethylamine with a mass percentage of 40%. Propylene oxide (Shandong Binhua Group Co., Ltd.) 40 parts;

[0016] Put ethylenediamine, tris(3-hydroxypropyl)phosphine and dibromoneopentyl glycol into the reactor, then put in dimethylamine, and then pass through propylene oxide at a temperature of 130°C, and add propylene oxide After the end, keep stirring at 130°C for 1 ho...

Embodiment 2

[0019] Yet another flame retardant preparation method, using ethylenediamine, tris(3-hydroxypropyl)phosphine, and dibromoneopentyl glycol as initiators; dimethylamine as a catalyst; ring-opening polymerization reaction with propylene oxide preparation. Including the following steps:

[0020] The parts by weight of raw materials are: 10 parts of ethylenediamine (Nanjing Gutian Chemical Co., Ltd.); 20 parts of tris(3-hydroxypropyl)phosphine (Tianjin Luyuan Tianmei Technology Co., Ltd.); Chemical Co., Ltd.) 23 parts; Dimethylamine (Nanjing Gutian Chemical Co., Ltd.) 0.5 parts; Propylene oxide (Shandong Binhua Group Co., Ltd.) 46.5 parts;

[0021] Put ethylenediamine, tris(3-hydroxypropyl)phosphine and dibromoneopentyl glycol into the reactor, then put in dimethylamine, and then pass through propylene oxide at a temperature of 110°C, and add propylene oxide After the end, stir at 110°C for 3 hours to fully react the system, then vacuumize and filter to obtain a flame-retardant p...

Embodiment 3

[0023] An application of the flame-retardant polyether prepared by the above-mentioned preparation method, taking 100 parts of polyether, 2 parts of silicone oil, 0.2 parts of triethylenediamine catalyst, 3 parts of water, and 110 parts of isocyanate, foaming after high-speed stirring and mixing to obtain polyurethane foam products.

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Abstract

The invention discloses a preparation method and application of flame-retardant polyether. The flame-retardant polyether contains N, P and Br elements and is reactive flame-retardant polyether. According to the preparation method, the flame-retardant polyether is prepared from the following raw materials in parts by weight: 5-10 parts of ethylenediamine, 20-30 parts of tri(3-hydroxypropyl)phosphine, 23-28 parts of dibromoneopentyl glycol, 0.5-2.0 parts of dimethylamine and 30-51.5 parts of epoxy propane. Polyurethane foaming plastics prepared from the flame-retardant polyether have a favorable flame-retardant effect and have the advantages of stable flame retardance and better foam quality as comparison with polyurethane foaming plastics prepared by additionally adding a flame retardant.

Description

technical field [0001] The invention belongs to a preparation method of an organic polymer compound, in particular to a preparation method of a flame-retardant polyether for polyurethane foam and an application of the obtained product. Background technique [0002] Ordinary polyurethane foam is a flammable material. In order to meet the requirements of flame retardancy, flame retardants are usually added when preparing polyurethane foam. However, the quality of polyurethane materials prepared by adding flame retardants is affected, and the added flame retardants will escape with the passage of time, and the flame retardant effect is getting worse. Contents of the invention [0003] In order to overcome the problems existing in the prior art, the purpose of the present invention is to provide a preparation method of flame-retardant polyether and the application of the obtained product. The polyurethane foam prepared by using the flame-retardant polyether has good flame-reta...

Claims

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Application Information

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IPC IPC(8): C08G65/28C08G18/50
Inventor 翟洪金郑磊倪小明于文超王飞其他发明人请求不公开姓名
Owner JURONG NINGWU NEW MATERIAL CO LTD BY SHARES
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