高效陶瓷化阻燃硅橡胶的制备及性能研究  

Preparation and Property Investigation on High Efficient Ceramizable Flame Retardant Silicone Rubber

作　　者：王韶晖 秦永法 龚雪冰 WANG Shaohui;QIN Yongfa;GONG Xuebing(Anhui Estone Materials Technology Co.,Ltd.,Bengbu 233400,China;Bengbu Estone Polymer Composites Co.,Ltd.,Bengbu 233400,China)

机构地区：[1]安徽壹石通材料科技股份有限公司,安徽蚌埠233400 [2]蚌埠壹石通聚合物复合材料有限公司,安徽蚌埠233400

出　　处：《特种橡胶制品》2024年第4期1-6,19,共7页Special Purpose Rubber Products

基　　金：应急管理部消防救援局重点研发项目-锂离子电池生产工艺及建筑防火关键技术研究资助(2022XFZD12)。

摘　　要：将硅酸盐、氢氧化铝及其经对应表面处理填料分别加入硅橡胶中制备了硅橡胶复合材料,对比了不同陶瓷化粉体对复合材料性能的影响。结果表明,CFR-2不需添加助熔剂即可实现低温短时间下的高效高质量成瓷,600℃×45 min煅烧后的弯曲强度可达15 MPa;其复合材料的有机物陶瓷化转化率净值高达49.7%,远高于其他样品。经过配方优化后,CFR-2的改进型粉体可同时达到FV-0级阻燃和高效陶瓷化,并保持优良的电绝缘性。A silicate,aluminum hydroxide and their corresponding modified fillers were respectively incorporated into a silicone rubber in order to prepare silicone composites.The effects of different ceramization fillers on the properties of the composites were analyzed and compared.The results showed that CFR-2 composite could convert into ceramic with high efficiency and quality at lower temperature and in shorter time even without help of a necessary fluxing agent.Flexural strength of the composite could be achieved about 15 MPa after calcined 45 min at 600℃.Net organics ceramization ratio of the composite was as high as 49.7%according to TGA analysis,which was much higher than the other samples.FV-0 flame retardant rating and high efficiency cermization could both be achieved after optimization on the recipe and further modification and at the same time with excellent electrical insulation.

关 键 词：陶瓷化 阻燃 硅橡胶 成瓷强度 有机物陶瓷化转化率净值 

分 类 号：TQ333.93[化学工程—橡胶工业]