一种高透光阻燃多层材料

By using reactive extrusion technology and core-shell structured flame-retardant particles, the problem of low light transmittance and easy combustion and dripping of polyester environmentally friendly materials in ultra-thin specifications has been solved, achieving a synergistic improvement in high light transmittance and flame retardancy.

CN121492460BActive Publication Date: 2026-07-17JIANGSU BANGYU FILM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU BANGYU FILM TECH CO LTD
Filing Date
2025-12-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing polyester-based environmentally friendly materials undergo molecular chain thermal degradation during secondary thermal processing, increasing mechanical brittleness. Furthermore, the introduction of biodegradable components leads to thermodynamic incompatibility of the system, resulting in severe light scattering at the interface. This makes it difficult to meet the requirements for high light transmittance and flame retardancy, especially in ultra-thin materials where they are prone to combustion and dripping, posing a secondary fire risk.

Method used

By using a reactive extrusion process, chain extenders are used to repair and compatibilize the matrix resin in situ during melt processing, constructing a stable molecular network. Flame-retardant particles with a core-shell structure are introduced, and the optical matching between the shell and the matrix is ​​used to eliminate light scattering, while the core layer supports and inhibits melt dripping.

Benefits of technology

It significantly improves the mechanical toughness, aging resistance, and flame retardant safety performance of the material, ensuring high light transmittance and flame retardant properties, and solves the technical bottleneck of low light transmittance and easy combustion and dripping of traditional polyester degradable materials in ultra-thin sizes.

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Abstract

本发明涉及多层材料制备技术领域，具体为一种高透光阻燃多层材料。本发明通过反应性挤出工艺，在熔融加工过程中对基体树脂进行原位修复与增容，构建了稳固的分子网络，有效解决了多相体系间的界面相容性问题；同时，协同引入具有核壳结构的阻燃粒子，通过壳层与基体的光学匹配消除光散射，并利用中间层的骨架支撑作用抑制熔体滴落。制备的多层材料在环保特性的前提下，显著提升了多层材料的力学韧性、耐老化稳定性及阻燃安全性能，克服了传统聚酯类降解材料在超薄规格下透光率低且易燃烧滴落的技术瓶颈。
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Citation Information

Patent Citations

  • Flame-retardant monomer containing DOPO (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) groups and preparation method and application of flame-retardant monomer

    CN103755742A

  • Multi-layer core-shell particle toughened poly(methyl methacrylate) composite material and preparation method thereof

    CN110437570A