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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。
Oil-filled butadiene rubber (BR) / ethylene-vinyl acetate copolymer (EVA) / styrene-butadiene-styrene copolymer (SBS) / high impact polystyrene Mixed thermoplastic vulcanizates (TPVs), the effects of aromatic hydrocarbon oil filled in the resin phase on the properties and submicroscopic structure of TPV were investigated. The results show that with the increase of the amount of aromatic oil, the hardness, tensile permanent set and strength of TPV all show a significant decreasing trend, while the elongation at break increases greatly. The SEM shows that the cross-sectional morphology of the oil-filled TPV is relatively The results show that TPV has a strong ability of deformation recovery. The appearance of BR vulcanizate particles on the surface of the sample after etching is irregular, and the particle size is between 5 and 40 μm.