教授
硕士生导师
教师拼音名称:wangzhaobo
学位:工学博士
职称:教授
学科:材料物理与化学
材料学材料加工工程材料科学与工程其他专业邮箱:
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2019-09-15 山东省优秀教师
2019-05-16 山东省优秀研究生指导教师
2020-12-10 青岛市高校教学名师
2019-09-04 青岛市教书育人楷模
2019-09-15 青岛市新时代最美劳动者
2020-11-10 山东省大学生高分子实用技术大赛“优秀指导教师”
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关键字:Polypropylene; waste ethylene-propylene-diene terpolymer powder; styrene-butadiene-styrene; thermoplastic elastomers; morphology; interface interaction; Mullins effect
摘要:Thermoplastic elastomers (TPEs) based on polypropylene (PP)/waste ethylene-propylene-diene terpolymer powder (WEPDMP) composites were prepared by melt compounding, and the composites were compatibilized by styrene-butadiene-styrene block copolymer (SBS). The effects of SBS compatibilizer on mechanical, morphological properties, and the Mullins effect of the TPEs were investigated systematically. Experimental results indicate that SBS had a good compatibilization effect on the PP/WEPDMP composites. Compared with PP/WEPDMP composites, the tensile strength and the elongation at break went through a maximum value at an SBS content of 6 phr, which were improved by 49.4 and 170.3%, respectively. Morphology study shows that the interface interaction of the PP/WEPDMP composites compatibilized by SBS was strong, which contributed to the significantly improved mechanical properties. Mullins effect results show that the softening obviously appeared after the second loading-unloading cycle, while the maximum stress decreased slightly at the later cycles and the internal friction loss of PP/SBS/WEPDMP composites was lower than that of PP/WEPDMP composites, indicating the elasticity of PP/WEPDMP TPE is improved by the incorporation of SBS.
卷号:29
期号:3
是否译文:否