Flame-retardant nylon material and preparation method thereof

By blending modified polysilsesquioxane flame retardant with nylon materials to form a ceramic barrier layer and a heat-insulating coke layer, the problems of insufficient flame retardancy and mechanical properties of nylon materials are solved, and the effects of high-efficiency flame retardancy and anti-dripping are improved.

CN121851697APending Publication Date: 2026-04-14SHENZHEN WOER HEAT SHRINKABLE MATERIAL
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Patent Information

Application Number
CN202512050559.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-31
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing nylon materials have poor flame retardancy, poor physical and mechanical properties, and are prone to dripping during combustion. Adding a large amount of flame retardant reduces the mechanical properties of the material.

Method used

Modified polysilsesquioxane flame retardant is used. The flame retardant containing epoxy groups, phosphorus and nitrogen elements is prepared in an alkaline environment and blended with nylon material to form a dense ceramic barrier layer, a heat-insulating coke layer and a porous foamed carbon layer, which synergistically retard flame.

Benefits of technology

It significantly improves the flame retardant, dielectric, and mechanical properties of nylon materials, while also enhancing anti-dripping and crack resistance and reducing the amount of flame retardant required.

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Abstract

The invention discloses a flame-retardant nylon material which comprises 50-70 parts of PA (polyamide), 1-5 parts of a toughening agent, 3-5 parts of a P-series flame retardant, 3-5 parts of an N-series flame retardant and 10-20 parts of a modified polysilsesquioxane flame retardant, and the modified polysilsesquioxane flame retardant is prepared from raw materials including silsesquioxane A, a compound B and a catalyst in an alkaline environment. The silsesquioxane A comprises at least one epoxy group D, and the compound B contains a phosphorus element P and a nitrogen element N and at least comprises a halogen end group X. The flame-retardant nylon material provided by the invention is excellent in flame retardant property and dielectric property, has good processability and mechanical property, greatly improves the anti-cracking property and anti-dripping effect of the flame-retardant nylon material, and is safe and environment-friendly.
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