| Morphology Evolution and Compatibilizing Mechanism of Compatibilized HIPS/HVPBR TPV |
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| DOI： |
| Key Words: HIPS；HVPBR；SBS block copolymer；microstructure；morphology evolution；compatibilizing mechanism |
| Author Name | Affiliation | | ZHAO Jing | Qingdao University of Science and Technology | | HE Ning | Qingdao Institute of Products Quality Supervision and Inspection | | WANG Zhaobo | Qingdao University of Science and Technology |
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| Abstract: |
| The SBS block copolymer compatibilized HIPS/HVPBR TPV was prepared by the dynamic vulcanization method. The morphology evolution of rubber phase during the dynamic curing process was observed by field emission scanning electron microscope. The effect of compatibilizer SBS on the microstructure of TPV was investigated and its compatibilizing mechanism was discussed. The results showed that，the size of rubber particles in SBS compatibilized TPV was decreased with extended curing time，and when the curing time was about 6 min，the rubber particles were spherical and dispersed in the resin phase with the size of 3～5 μm. Compared with the uncompatibilized TPV，the rubber particles in SBS compatibilized TPV showed rougher surface，more uniform shape and smaller size. Under shearing force，nano-level disordered and stacked structure on the surface of rubber particles in SBS compatibilized TPV was formed，which enhanced the interfacial interaction between rubber particles and resin phase and improved the
physical properties of TPV. |
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