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Invention Application
WO2021057356A1 低线性膨胀系数、阻燃聚碳酸酯复合材料及其制备方法 审中-公开

低线性膨胀系数、阻燃聚碳酸酯复合材料及其制备方法
Abstract:
一种低线性膨胀系数、阻燃聚碳酸酯复合材料，包括以下重量份的成分：Sc 2W 3O 120.5～1.5份、聚硼硅氧烷0.7～1.5份和聚碳酸酯90～100份。通过聚硼硅氧烷配合负热膨胀材料Sc 2W 3O 12，制备出了一种低线性膨胀系数、阻燃聚碳酸酯复合材料，最终复合材料的CLTE最低可达1.8*10 -51/K，阻燃最佳可达UL94-5VA/1.6mm，氧指数可达40％以上。同时，还公开了所述低线性膨胀系数、阻燃聚碳酸酯复合材料的制备方法。
Abstract(English):

Provided is a low linear-expansion coefficient, flame-retardant polycarbonate composite material, comprising the following ingredients in parts by weight: 0.5–1.5 parts of Sc2W3O12, 0.7–1.5 parts of polyborosiloxane, and 90–100 parts of polycarbonate. The negative thermal expansion material Sc2W3O12 is combined with polyborosiloxane to prepare a low linear-expansion coefficient, flame-retardant polycarbonate composite material; the CLTE of the final composite material can reach as low as 1.8*10-51/K, optimal flame retardancy can reach UL94-5VA/1.6mm, and the oxygen index can reach more than 40%. Also disclosed is a method for preparing said low linear-expansion coefficient, flame-retardant polycarbonate composite material.

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