| Effect of Mixing Processes on Properties of EUG/NR Blends |
| Received:March 04, 2022 Revised:March 04, 2022 |
| DOI：10.12136/j.issn.1000-890X.2023.10.0817 |
| Key Words: mixing process；EUG；NR；carbon black dispersion；crystallinity；tensile fatigue property |
| Author Name | Affiliation | E-mail | | SUN Quan | Beijing University of Chemical Technology | 3264155447@qq.com | | DENG Linhui | Beijing University of Chemical Technology | | | XIANG Wankun | Beijing University of Chemical Technology | | | LIU Haobei | Standards and Quality Department of China Building Materials Federation | | | ZHAO Xiuying* | Beijing University of Chemical Technology | zhaoxy@mail. buct. edu. cn |
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| Abstract: |
| The effect of mixing processes on the properties of Eucommia ulmoides gum（EUG）/natural rubber（NR） blends with different blend ratios was studied.The results showed that，when the amount of EUG was no more than 30 phr，there was no obvious crystallization in the EUG/NR blends.The crystalline structure of EUG vulcanizate was β crystal form.Compared with EUG/NR blend under dry mixing process，the Payne effect of EUG/NR blend under wet mixing process was weak and the carbon black dispersion was better.With the increase of the amount of EUG，the tensile strength of EUG/NR blend decreased.Under the wet mixing process，the tensile fatigue life of EUG/NR blend was extended.When the amount of EUG was 20 phr，the tensile fatigue lives of EUG/NR blends under dry and wet mixing processes were both the largest. |
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