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A kind of flame-retardant polyurethane foam and preparation method thereof

A technology of foam plastics and polyurethane, which is applied in the field of flame-retardant polyurethane foam plastics, can solve problems such as poor compatibility, decrease in compressive strength of polyurethane foam materials, and unsustainable flame-retardant performance, and achieve low cost, long-lasting flame retardancy, The effect of excellent flame retardancy

Active Publication Date: 2021-08-10
湖南科旺科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor compatibility of ammonium polyphosphate and polyurethane foam base material, the compressive strength of the obtained polyurethane foam material is greatly reduced, and the flame retardancy is not durable

Method used

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  • A kind of flame-retardant polyurethane foam and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 48 parts of diphenylmethane diisocyanate, 52 parts of polyether polyol, 2 parts of water, 0.24 parts of triethylenediamine, 0.4 parts of dibutyltin dilaurate, 0.5 parts of methyl silicone oil 201, lignin-diisocyanate-polyphosphoric acid Add 20 parts of ammonium (the mass ratio of lignin / diisocyanate / ammonium polyphosphate is 1:0.2:1) to the reactor at one time, mix and foam under high-speed stirring conditions to obtain flame-retardant polyurethane foam.

Embodiment 2

[0022] 35 parts of toluene diisocyanate, 65 parts of polyether polyol, 1.5 parts of water, 0.4 parts of triethanolamine, 0.45 parts of dibutyltin dilaurate, 0.45 parts of methyl silicone oil 201, lignin-diisocyanate-ammonium polyphosphate (lignin / The mass ratio of diisocyanate / ammonium polyphosphate is 1:0.25:1.1) Add 30 parts into the reactor at one time, mix and foam under high-speed stirring conditions to obtain flame-retardant polyurethane foam.

Embodiment 3

[0024] 40 parts of hexamethylene diisocyanate, 60 parts of polyether polyol, 2.5 parts of water, 0.35 parts of triethanolamine, 0.42 parts of dibutyltin dilaurate, 0.45 parts of methyl silicone oil 201, lignin-diisocyanate-ammonium polyphosphate ( The mass ratio of lignin / diisocyanate / ammonium polyphosphate is 1:0.2:1.2) 35 parts are added into the reactor at one time, mixed and foamed under high-speed stirring conditions to obtain flame-retardant polyurethane foam.

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Abstract

The invention provides a flame-retardant polyurethane foam plastic, wherein the components by mass of the flame-retardant polyurethane foam plastic are: 35-50 parts of toluene diisocyanate, 52-65 parts of polyether polyol, 1.5-2.5 parts of water, and triethanolamine 0.24-0.4 parts, 0.4-0.45 parts of dibutyltin dilaurate, 0.45-0.5 parts of methyl silicone oil 201 type, 20-30 parts of flame retardant; the invention adopts a one-step foaming process, and the process operation is simple and controllable Good, low cost, easy to realize industrial production.

Description

technical field [0001] The invention relates to the field of flame-retardant polyurethane foam, in particular to a flame-retardant polyurethane foam and a preparation method thereof. Background technique [0002] Polyurethane foam is widely used in many fields of production and life because of its porosity, low density, and excellent mechanical properties, photoelectrochemical properties, and chemical corrosion resistance. It is the most widely used polyurethane product. One of the widest range of products. However, while polyurethane foam brings convenience to people, it also poses a huge threat to the safety of people's lives and properties because of its low ignition point and the shortcomings of being extremely flammable. In order to improve the safety of people's life and property, flame-retardant polyurethane foam came into being and developed rapidly. [0003] The flame retardancy of polyurethane foam mainly includes additive flame retardancy and reactive flame reta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/48C08G18/32C08G18/64C08G18/73C08G18/76C08G18/79C08K3/32
CPCC08G18/3281C08G18/48C08G18/6492C08G18/73C08G18/7614C08G18/7671C08G18/794C08K3/32C08K2003/323C08G2110/0083
Inventor 苏胜培夏新红舒友杨峻基何雨欣
Owner 湖南科旺科技有限公司
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