Co-OSA协效TPU/EVA膨胀阻燃体系的加工特性  

Processing Characteristics of Co-OSA Co-Effecting TPU/EVA Expansive Flame Retardant System

作　　者：苗田 王明星[1] 刘小芳 刘云路 张雷 张元 陈增红[1] 邹司农 MIAO Tian;WANG Mingxing;LIU Xiaofang;LIU Yunlu;ZHANG Lei;ZHANG Yuan;CHEN Zenghong;ZOU Si'nong(Material Technology and Engineering Research Institute,Zhuzhou Times New Material Technology Co.,Ltd.,Zhuzhou,Hunan 412000,China)

机构地区：[1]株洲时代新材料科技股份有限公司,材料技术与工程研究院,湖南株洲412000

出　　处：《塑料》2025年第1期29-33,共5页Plastics

摘　　要：将自制的协效阻燃剂Co-OSA与TPU/EVA膨胀阻燃体系熔融共混,制备了TPU/EVA共混体系,研究了Co-OSA的添加量对体系力学性能、阻燃性能及微观形貌的影响。结果表明,Co-OSA添加后,体系表面平整光滑;此时,平衡扭矩和溶体流动速率分别下降7.12%、提高17.9%。SEM显示,Co-OSA的添加提高了体系相容性;随着Co-OSA添加量的增加,拉伸强度、断裂伸长率及氧指数均呈先上升后下降的趋势;当Co-OSA的添加量为0.6%时,体系综合性能较好,此时,体系的氧指数为31.5%,拉伸强度和断裂伸长率分别为14.7 MPa、364.8%。The TPU/EVA blended system was prepared by melting and blending with the self-made co-effect flame retardant Co-OSA and TPU/EVA expansion flame retardant system,focusing on the effect of Co-OSA on the processing performance of the system,and the effects of Co-OSA addition on the mechanical properties,flame retardant properties and micromorphology of the system were studied.The results showed that the addition of Co-OSA made the surface of the system smooth and smooth.At this time,the equilibrium torque and melt flow rate decreased by 7.12%and increased by 17.9%,respectively.SEM showed that the addition of Co-OSA improved system compatibility;With the increase of Co-OSA addition,the tensile strength,elongation at break and oxygen index all increased first and then decreased.When the amount of Co-OSA added was 0.6%,the comprehensive performance of the system was better,the oxygen index of the system was 31.5%,the tensile strength and elongation at break was 14.7 MPa and 364.8%,respectively.

关 键 词：膨胀阻燃 TPU/EVA 协效阻燃剂 力学性能 加工性 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业] TQ325.5