| Effect of Crude Gutta-percha on Properties of NR |
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| DOI： |
| Key Words: crude gutta-percha；NR；physical property；dynamic performance |
| Author Name | Affiliation | | LI Chun-xia | Qingdao University of Science and Technology | | WANG Yan | Qingdao University of Science and Technology | | SHEN Mei | Qingdao University of Science and Technology | | XIN Zhen-xiang | Qingdao University of Science and Technology |
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| Abstract: |
| The crude gutta-percha was obtained by using bio enzymatic pretreatment method to process eucommia leaves，and the effects of the addition level of crude gutta percha on the properties of NR were studied.The results showed that when the addition level of crude gutta percha exceeded 15 phr，the Mooney viscosity of NR compound increased significantly.As the addition level of crude gutta percha increased thet10和t90 of NR compound changed little，the physical properties of the vulcanizate were improved，shear storage modulus decreased，and loss factor increased. |
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