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A kind of maleopimaric acid modified silicon-phosphorus synergistic flame retardant, its preparation method and flame-retardant polyurethane foam prepared therefrom

A technology of maleopimaric acid and polyurethane foam, which is applied in the field of flame-retardant materials, can solve the problems of poor flame-retardant performance of rigid polyurethane foam, and achieve the effects of ensuring stability, high flame-retardant performance, and improving rigidity

Active Publication Date: 2021-09-28
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defects of poor flame retardancy of rigid polyurethane foam in the prior art, the present invention provides a maleopimaric acid modified silicon-phosphorus synergistic flame retardant, its preparation method and flame-retardant polyurethane foam prepared therefrom

Method used

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  • A kind of maleopimaric acid modified silicon-phosphorus synergistic flame retardant, its preparation method and flame-retardant polyurethane foam prepared therefrom
  • A kind of maleopimaric acid modified silicon-phosphorus synergistic flame retardant, its preparation method and flame-retardant polyurethane foam prepared therefrom
  • A kind of maleopimaric acid modified silicon-phosphorus synergistic flame retardant, its preparation method and flame-retardant polyurethane foam prepared therefrom

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Experimental program
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Effect test

Embodiment 1

[0042] Weigh 150ml of γ-aminopropylmethyldiethoxysilane and 150ml of deionized water, stir and react at 90°C for 4.5h to obtain aminosilane hydrolyzate (HAPMS). 10 parts by weight of HAPMS, 90 parts by weight of octamethylcyclotetrasiloxane (D 4 ), 0.4 parts by weight of hexamethyldisiloxane (MM) and 0.1 parts by weight of potassium hydroxide (KOH) was heated to 140° C., stirred and reacted for 6 hours to obtain polysiloxane. 40 parts by weight of polysiloxane and 10 parts by weight of maleopimaric acid (MPA) were weighed, heated to 91° C. and stirred for 4 hours. After the reaction is completed, weigh 40 parts by weight of the above product and 10 parts by weight of DOPO, dissolve them in 300ml of chloroform, react at 50°C for 12 hours, and remove the solvent by rotary evaporation to obtain maleopimaric acid modified silicon-phosphorus synergistic flame retardant . Weigh 55 parts by weight of polyether polyol (ZS4110, Jiangsu Zhongshan Chemical Co., Ltd.), 45 parts by weigh...

Embodiment 2

[0048] Weigh 150ml of γ-aminopropylmethyldiethoxysilane and 150ml of deionized water, stir and react at 90°C for 4.5h to obtain aminosilane hydrolyzate (HAPMS). 20 parts by weight of HAPMS, 80 parts by weight of octamethylcyclotetrasiloxane (D 4 ), 0.3 parts by weight of hexamethyldisiloxane (MM) and 0.1 parts by weight of potassium hydroxide (KOH) was heated to 140° C., stirred and reacted for 6 hours to obtain polysiloxane. 30 parts by weight of polysiloxane and 20 parts by weight of maleopimaric acid (MPA) were weighed, heated to 91° C. and stirred for 4 hours. After the reaction is completed, weigh 40 parts by weight of the above product and 10 parts by weight of DOPO, dissolve them in 300ml of chloroform, react at 50°C for 12 hours, and remove the solvent by rotary evaporation to obtain maleopimaric acid modified silicon-phosphorus synergistic flame retardant . Weigh 55 parts by weight of polyether alcohol (ZS4110, Jiangsu Zhongshan Chemical Co., Ltd.), 45 parts by weig...

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Abstract

The invention discloses a maleopimaric acid-modified silicon-phosphorus synergistic flame retardant, a preparation method thereof and a flame-retardant polyurethane foam prepared therefrom. The maleopimaric acid-modified silicon-phosphorus synergistic flame retardant has a general structural formula as follows : Wherein, a is 1‑10, b is 10‑20, c is 1‑10, and d is 10‑20. The present invention obtains the maleopimaric acid modified silicon-phosphorus synergistic flame retardant by reacting maleopimaric acid, DOPO and polysiloxane, and introduces it into the polyurethane skeleton through chemical modification to obtain a long-lasting flame-retardant , and rigid polyurethane foam with excellent mechanical properties, and at the same time fundamentally solve the compatibility problem of adding flame retardants through physical blending, and the synergistic promotion of DOPO and polysiloxane is obvious, making polyurethane foam The flame retardant performance of the film is significantly improved, and at the same time, it also promotes the improvement of mechanical properties.

Description

technical field [0001] The invention relates to a maleopimaric acid-modified silicon-phosphorus synergistic flame retardant, a preparation method thereof and a flame-retardant polyurethane foam prepared therefrom, belonging to the field of flame-retardant materials. Background technique [0002] Rigid polyurethane foam is produced by the reaction of polyols and polyisocyanates in the presence of blowing agents and catalysts. Rigid polyurethane foam has the characteristics of light weight, low thermal conductivity and good heat preservation, and is widely used in the fields of pipelines and building materials. However, the porous structure of rigid polyurethane foam makes it extremely easy to burn, and the flame spreads extremely fast. Once a fire occurs, the fire is difficult to control, which brings great safety hazards to people's daily use. Therefore, in order to improve the flame retardant performance of polyurethane foam and prevent it from harming people in a fire, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/395C08G77/388C08G77/26C09K21/14C08G18/67C08G18/61C08G18/48C08G18/76C08G101/00
CPCC08G18/4009C08G18/48C08G18/615C08G18/6705C08G18/7671C08G77/26C08G77/388C08G77/395C09K21/14
Inventor 刘鹤王诗博王丹商士斌宋湛谦
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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