| 混炼工艺对杜仲胶/天然橡胶并用胶性能的影响 |
| Effect of Mixing Processes on Properties of EUG/NR Blends |
| 投稿时间：2022-03-04 修订日期：2022-03-04 |
| DOI：10.12136/j.issn.1000-890X.2023.10.0817 |
| 中文关键词: 混炼工艺 杜仲胶 天然橡胶 炭黑分散性 结晶性 伸张疲劳性能 |
| 英文关键词: mixing process EUG NR carbon black dispersion crystallinity tensile fatigue property |
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| 中文摘要: |
| 研究混炼工艺对不同并用比的杜仲胶（EUG）/天然橡胶（NR）并用胶性能的影响。结果表明：当EUG用量不大于30份时，EUG/NR并用胶无明显的结晶，EUG硫化胶的结晶为β晶型；与干法混炼工艺下EUG/NR并用胶相比，湿法混炼工艺下EUG/NR并用胶的Payne效应弱，炭黑分散性更好；随着EUG用量的增大，EUG/NR并用胶的拉伸强度减小；湿法混炼工艺下EUG/NR并用胶的伸张疲劳寿命延长，当EUG用量为20份时干法和湿法混炼工艺下EUG/NR并用胶的伸张疲劳次数均最大。 |
| 英文摘要: |
| 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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