PPO/SEBS/SEBS-g-MAH共混物的阻燃性能研究  

Study on flame retardant properties of PPO/SEBS/SEBS-g-MAH blends

作　　者：陶宇 陆红霞[1] 邵为 肖雨婷 高炜斌[1] Tao Yu;Lu Hongxia;Shao Wei;Xiao Yuting;Gao Weibing(School of Chemical and Pharmaceutical Engineering,Changzhou Vocational Institute of Engineering,Changzhou 213164)

机构地区：[1]常州工程职业技术学院化工与制药工程学院,常州213164

出　　处：《化工新型材料》2023年第7期145-148,共4页New Chemical Materials

基　　金：国家自然科学基金青年项目(BK51303016);常州工程职业技术学院2021年校科研基金项目(11130300120002)。

摘　　要：以苯乙烯-乙烯/丁二烯-苯乙烯嵌段共聚物(SEBS)为弹性体改性剂,SEBS-g-MAH为相容剂,红磷和Mg(OH)_(2)作为阻燃剂,采用双螺杆挤出技术,制备了阻燃聚苯醚(PPO)/SEBS/SEBS-g-MAH共混物。结果表明:当红磷用量为15份时,Mg(OH)_(2)仅用80份,PPO/弹性体共混物的极限氧指数(LOI)就能达到28%,燃烧等级达UL94 V-0级,同时燃烧时的热释放速率(HRR)及生烟速率(SPR)均大幅降低。Flame retardant PPO/SEBS/SEBS-g-MAH blends were prepared by twin-screw extrusion with styrene ethylene/butadiene styrene block copolymer(SEBS)as elastomer,SEBS-g-MAH as compatibilizer,and red phosphorus and Mg(OH)_(2) as flame retardant.When the amount of red phosphorus was 15 phr and Mg(OH)_(2) was only 80 phr,the limiting oxygen index(LOI)of PPO/elastomer blend could reach 28%and the combustion grade could reach UL94V-0 level.At the same time,the heat release rate(HRR)and smoke generation rate(SPR)during combustion were greatly reduced.

关 键 词：聚苯醚 苯乙烯-乙烯/丁二烯-苯乙烯嵌段共聚物 复配 阻燃性能 

分 类 号：TQ328[化学工程—合成树脂塑料工业]