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
CN112266481BActive Publication Date: 2021-09-28INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
Publication Date
2021-09-28

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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.
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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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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