| Compatibility and Mullins Effect of ABS/NBR TPV |
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| DOI： |
| Key Words: ABS；NBR；TPV；compatibilizer；Mullins effect |
| Author Name | Affiliation | | WEI Dong-ya | Qingdao University of Science and Technology | | ZHAO Jing | Qingdao University of Science and Technology | | DU Fang-lin | Qingdao University of Science and Technology | | WANG Zhao-bo | Qingdao University of Science and Technology |
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| Abstract: |
| Thermoplastic vulcanizates（TPV） based on acrylonitrile butadiene styrene terpolymer（ABS）/NBR were prepared by dynamic vulcanization method.Chlorinated polyethylene（CPE）was used as compatibilizer，and the effects of the addition level of CPE on physical properties，Mullins effect and microstructure of the TPVs were investigated.The results showed that，CPE could improve the compatibility of ABS/NBR system，and when the addition level of CPE was 6 phr，the comprehensive properties of ABS/NBR TPV were the best.Mullins effect could be observed during the uniaxial loading unloading cycles，and the maximum stress，internal friction and tanδ under fixed deformation were significantly reduced after the first loading unloading cycle while they were only slightly reduced after later loading unloading cycles.Compared with the TPV without CPE，CPE/ABS/NBR TPV had higher residual deformation，stronger stress softening effect and higher tanδ.Morphology analysis result by SEM showed that the fracture surface of compatibilized TPV was smooth and the crosslinked NBR particles were dispersed uniformly. |
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