Preparation method of triazine hyperbranched carbonizing agent
CN120248322APending Publication Date: 2025-07-04GUANGDONG YUXING FIRE-RETARDANT NEW MATERIALS CO LTD
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Patent Information
- Application Number
- CN202510197635.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-07-04
AI Technical Summary
Technical Problem
The existing triazine-type hyperbranched carbon-forming agent has poor thermal stability and poor flame retardant effect.
Method used
The resorcinol [bis(2,6-dimethylphenyl)phosphate] group was used as the phosphorus source and reacted with trisocyanochloride to prepare triazine-type hyperbranched carbon-forming agent. By introducing resorcinol [bis(2,6-dimethylphenyl)phosphate] group, nitrogen and phosphorus synergistic flame retardant, improving thermal stability and carbon-forming ability.
Benefits of technology
It improves the thermal stability and flame retardant effect of triazine-type hyperbranched carbon-forming agents, and can generate more dense carbon layers in a short time, enhancing flame retardant performance.
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Figure CN120248322A_ABST
Abstract
The invention relates to a preparation method of a triazine hyperbranched carbonizing agent, which comprises the following steps: (1) in the presence of an anhydrous MgCl2 catalyst, carrying out reaction on phosphorus oxychloride and 2, 6-dimethylphenol to obtain di-(2, 6-dimethylphenyl) phosphoryl chloride, and carrying out reaction on the di-(2, 6-dimethylphenyl) phosphoryl chloride and resorcinol to obtain resorcinol [di (2, 6-dimethylphenyl) phosphate]; (2) slowly dropwise adding a resorcinol [bis (2, 6-dimethylphenyl) phosphate] solution into a mixed solution composed of cyanuric chloride, water, acetone and sodium hydroxide, and carrying out a reaction to obtain a substitute I; and (3) dropwise adding a mixed solution composed of a diamine compound and potassium hydroxide into the substitute I, and reacting to obtain the triazine hyperbranched carbonizing agent. The triazine hyperbranched charring agent disclosed by the invention is better in charring property, and the flame-retardant effect is improved.
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