Polysiloxane as well as preparation method and application thereof

• Main Authors: LIU JIE, ZHU YUE, LEI SENHAO, TANG TAO
• Format: Patent
• Language: Chinese; English
• Published: 29.08.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention discloses polysiloxane as well as a preparation method and application thereof, and belongs to the technical field of chemical engineering. The polysiloxane has a structure as shown in a formula I. The polysiloxane is used as a flame retardant of the polycarbonate material, high flame retardant performance can be realized through a low addition amount, and the polycarbonate material has excellent performance in oxygen index, vertical combustion and cone calorimetry tests. The impact strength of the prepared polycarbonate material containing the polysiloxane flame retardant is higher than that of a common polycarbonate material, and the polycarbonate material has better impact resistance, so that a new thought is provided for developing the polycarbonate material with high flame retardance, low heat release and excellent mechanical properties. 本发明公开了一种聚硅氧烷及其制备方法与应用，属于化工技术领域。所述聚硅氧烷具有式I所示结构，所述聚硅氧烷作为聚碳酸酯材料的阻燃剂，通过低添加量即可实现高阻燃性能并且使聚碳酸酯材料在氧指数、垂直燃烧、锥形量热测试中具有优秀的表现。本发明制备的含聚硅氧烷阻燃剂的聚碳酸酯材料冲击强度大于普通聚碳酸酯材料，具有更好的