| Properties of Silica Reinforced NR/TBIR Blends |
| Received:August 27, 2018 Revised:August 27, 2018 |
| DOI：10.12136/j.issn.1000-890X.2019.04.0270 |
| Key Words: NR；TBIR；silica；fatigue resistance；friction coefficient；dispersion |
| Author Name | Affiliation | E-mail | | ZHANG Yuefa | Qingdao University of Science and Technology | zhangyuefa1234@163.com | | SHAO Huafeng* | Qingdao University of Science and Technology | hfshao_sjtu@163.com | | WANG Riguo | Shandong Huaju Polymer Materials Co. ，Ltd | | | HE Aihua | Qingdao University of Science and Technology | |
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| Abstract: |
| The properties of silica reinforced natural rubber（NR）/high trans-1，4-butadiene isoprene rubber（TBIR） blend were investigated. The results showed that，the strength of NR compound was improved by blending with TBIR. With the increase of TBIR amount，the compression set and DIN wear of the NR/TBIR vulcanizate and silica reinforced NR/TBIR vulcanizate were reduced，the flexural fatigue resistance and tensile fatigue resistance were greatly improved，and the static friction coefficient and dynamic friction coefficient increased. The average particle size of silica aggregates in the silica reinforced NR/TBIR vulcanizate was smaller than that in the silica reinforced NR vulcanizate，and the dispersion of silica in rubber matrix was improved. |
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