充油BR/EVA/SBS/HIPS TPV的结构与性能  

Structure and Properties of BR/EVA/SBS/HIPS TPV Filled with Aromatic Oil

作　　者：张艺馨[1] 郎丰正[1] 王兆波[1] 

机构地区：[1]青岛科技大学材料科学与工程学院,山东青岛266042

出　　处：《特种橡胶制品》2011年第6期12-15,共4页Special Purpose Rubber Products

摘　　要：采用动态硫化法制备了充油顺丁橡胶(BR)/乙烯-醋酸乙烯共聚物(EVA)/苯乙烯-丁二烯-苯乙烯共聚物(SBS)/高抗冲聚苯乙烯(HIPS)共混型热塑性硫化胶(TPV),研究了在树脂相中填充芳烃油对TPV性能和亚微观结构的影响。结果表明,随着芳烃油用量的提高,TPV的硬度、拉伸永久变形、强度均呈显著下降趋势,而拉断伸长率较大幅度提高;SEM研究表明,充油TPV的断面形貌较为平整,表明TPV具有较强形变回复能力;刻蚀后样品表面的BR硫化胶粒子外观不规则,粒子尺寸在5～40μm之间。The cis-1,3-butadiene rubber（BR） / ethylene-vinyl acetate copolymer（EVA） / styrene-butadiene-styrene block copolymer（SBS） / high impact polystyrene（HIPS） thermoplastic vulcanizate（TPV） was prepared by dynamic vulcanization.The influence of aromatic oil on the mechanical properties and the sub-microstructure of the BR/EVA/SBS/HIPS TPV were investigated.The results showed that with the increase of aromatic oil content,the Shore A hardness and tensile set of the prepared TPV were decreased obviously,but the elongation at break was increased apparently.The fracture surface morphology of the TPV was smooth,indicating the strong deformation recovery ability.The vulcanized BR particles were dispersed evenly on the etched surface of the TPV and the dimension of the BR dispersed particles was in the range of 5~40 μm.

关 键 词：BR HIPS 动态硫化 芳烃油 亚微观结构 

分 类 号：TQ333.2[化学工程—橡胶工业] TQ334.3