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Preparation method of flame retardant polyether for polyurethane foam and application of prepared flame retardant polyether

A technology of polyurethane foam and flame retardant polyether, which is applied in the field of preparation of organic polymer compounds, can solve the problems of poor flame retardant effect, escape of external flame retardants, influence on the quality of polyurethane materials, etc. The effect of burning effect is obvious

Active Publication Date: 2015-01-07
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 added flame retardants will escape with the passage of time, and the flame retardant effect is getting worse

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A preparation method of flame-retardant polyether for polyurethane foam, using tris(3-hydroxypropyl)phosphine and dibromoneopentyl glycol as initiator; dimethylamine as catalyst; and propylene oxide ring-opening polymerization reaction preparation. Including the following steps:

[0015] Raw materials in parts by weight: 30 parts of tris(3-hydroxypropyl)phosphine (Tianjin Luyuan Tianmei Technology Co., Ltd.); 23 parts of dibromoneopentyl glycol (Shanghai Ruishuo Chemical Co., Ltd.); dimethylamine (Nanjing Gutian Chemical Co., Ltd.) 2.0 parts; Dimethylamine is a 40% aqueous solution of dimethylamine by mass. Propylene oxide (Shandong Binhua Group Co., Ltd.) 40 parts;

[0016] Put tris(3-hydroxypropyl)phosphine and dibromoneopentyl glycol into the reactor, then put in dimethylamine, and then feed propylene oxide at a temperature of 130°C. After the addition of propylene oxide, keep Stir at 130°C for 1 hour to fully react the system,

[0017] Vacuum and filter to obtai...

Embodiment 2

[0019] Another preparation method of flame-retardant polyether for polyurethane foam, using tris(3-hydroxypropyl)phosphine and dibromoneopentyl glycol as initiator; dimethylamine as catalyst; ring-opening polymerization with propylene oxide Reaction preparation. Including the following steps:

[0020] Raw materials in parts by weight: 20 parts of tris(3-hydroxypropyl)phosphine (Tianjin Luyuan Tianmei Technology Co., Ltd.); 23 parts of dibromoneopentyl glycol (Shanghai Ruishuo Chemical Co., Ltd.); dimethylamine (Nanjing Gutian Chemical Co., Ltd.) 0.5 parts; Propylene oxide (Shandong Binhua Group Co., Ltd.) 56.5 parts;

[0021] Put tris(3-hydroxypropyl)phosphine and dibromoneopentyl glycol into the reactor, then put in dimethylamine, and then feed propylene oxide at a temperature of 110°C. After the addition of propylene oxide, the Stir at 110°C for 3 hours to fully react the system,

[0022] Then vacuumize and filter to obtain flame retardant polyether.

Embodiment 3

[0024] An application of the flame-retardant polyether prepared by the above preparation method, take 100 parts of polyether for polyurethane foam, 2 parts of silicone oil, 0.2 parts of triethylenediamine catalyst, 3 parts of water, 110 parts of isocyanate, and foam after high-speed stirring A polyurethane foam product is obtained.

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PUM

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Abstract

The invention discloses a preparation method of flame retardant polyether for polyurethane foam and application of the prepared flame retardant polyether. The flame retardant polyether contains P and Br elements and is a reaction type flame retardant polyether. The flame retardant polyether is prepared from the following raw materials in parts by weight: 20-30 parts of tri(3-hydroxypropyl)phosphine, 23-28 parts of dibromoneopentyl glycol, 0.5-2.0 parts of dimethylamine and 40-56.5 parts of epoxy propane. The polyurethane foam plastic prepared by adopting the flame retardant polyether has good flame retardant effect and is stable in flame retardant property and good in foam quality compared with the polyurethane foam plastic prepared from extra adding 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 object of the present invention is to provide a preparation method of a flame-retardant polyether for polyurethane foam and the application of the obtained product. The polyurethane foam prepared by using the flame-retardant polyet...

Claims

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Application Information

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IPC IPC(8): C08G65/28C08G18/50C08G101/00
Inventor 应珏翟洪金赵文锋徐华丽陈小燕巫丹
Owner JURONG NINGWU NEW MATERIAL CO LTD BY SHARES
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