Tensile creep behavior and structures of sisal fiber reinforced styrene butadiene thermoplastic elastomer/polystyrene composites

IF 1.4 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
Yuxin Liu, Liangyan Liao, Zesheng Liang, Rulong Wu, Fang Yang
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引用次数: 0

Abstract

Styrene butadiene thermoplastic elastomer (SBS)/polystyrene (PS)/sisal fiber (SF) composites were prepared by melt-blending method. The tensile creep behavior of SBS/PS/SF composites was studied and fitted by four viscoelastic models including Findley, Burger, generalized Kelvin-Voigt and Maxwell models. The effects of content and surface properties of SF treated by alkali and silane coupling agent on the creep behavior, structures and thermal properties of the composites under the action of tensile stress were investigated. The results indicated that the generalized Kelvin-Voigt model and generalized Maxwell model could best fit the tensile creep behavior of SBS/PS/SF composites. The creep resistance and thermal stability of the composites improved with the increases of SF content and tensile stress. The interfacial properties of fiber and matrix were enhanced after SF treated by silane, which would be beneficial to the improvements of the creep resistance and thermal stability. The glass transition temperature of the composite increased with the increase of SF content, but decreased after the action of the tensile stress.
剑麻纤维增强丁二苯乙烯热塑性弹性体/聚苯乙烯复合材料的拉伸蠕变性能和结构
采用熔融共混法制备了丁苯热塑性弹性体(SBS)/聚苯乙烯(PS)/剑麻纤维(SF)复合材料。采用Findley、Burger、广义Kelvin-Voigt和Maxwell四种粘弹性模型对SBS/PS/SF复合材料的拉伸蠕变行为进行了研究和拟合。研究了经碱和硅烷偶联剂处理的SF含量和表面性能对拉伸应力作用下复合材料蠕变行为、结构和热性能的影响。结果表明,广义Kelvin-Voigt模型和广义Maxwell模型最能拟合SBS/PS/SF复合材料的拉伸蠕变行为。随着SF含量的增加和拉伸应力的增加,复合材料的抗蠕变性能和热稳定性得到改善。硅烷处理后的纤维与基体的界面性能得到增强,有利于提高纤维的抗蠕变性能和热稳定性。复合材料的玻璃化转变温度随着SF含量的增加而升高,但在拉应力作用下降低。
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来源期刊
Journal of Elastomers and Plastics
Journal of Elastomers and Plastics 工程技术-材料科学:综合
CiteScore
3.30
自引率
5.90%
发文量
41
审稿时长
6 months
期刊介绍: The Journal of Elastomers and Plastics is a high quality peer-reviewed journal which publishes original research on the development and marketing of elastomers and plastics and the area in between where the characteristics of both extremes are apparent. The journal covers: advances in chemistry, processing, properties and applications; new information on thermoplastic elastomers, reinforced elastomers, natural rubbers, blends and alloys, and fillers and additives.
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