| 芳纶浆粕在天然橡胶胶料中的应用研究 |
| Application of Aramid Pulp in NR Compound |
| 投稿时间：2020-03-20 修订日期：2020-03-20 |
| DOI：10.12136/j.issn.1000-890X.2020.05.0356 |
| 中文关键词: 天然橡胶 芳纶浆粕 母胶 硫化特性 物理性能 伸张疲劳寿命 |
| 英文关键词: NR aramid pulp masterbatch vulcanization characteristics physical property tensile fatigue life |
| 基金项目:国防基础科研重点项目（JCKY2017208B013） |
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| 中文摘要: |
| 采用Kevlar 1F538，Kevlar 1F1710，Twaron 1091和Twaron 1095自制4种芳纶浆粕母胶，研究其对天然橡胶（NR）胶料各项性能的影响。结果表明，4种芳纶浆粕母胶均能够延长胶料的焦烧时间，缩短正硫化时间，提高硫化胶的硬度、100%定伸应力、拉伸强度、拉断伸长率、撕裂强度和伸长疲劳性能，其中Twaron 1091芳纶浆粕母胶的综合效果最优，加入后胶料的焦烧时间延长了29. 1%，硫化胶的拉伸强度提高了12. 4%，撕裂强度提高了17. 9%，伸张疲劳寿命延长了35. 2%，且动态储能模量增大。 |
| 英文摘要: |
| Four kinds of aramid pulp masterbatch were prepared by using Kevlar 1F538，Kevlar 1F1710，Twaron 1091 and Twaron 1095，and their effects on the properties of natural rubber（NR） compound were studied. The results showed that use of aramid pulp masterbatch could prolong the scorch time of the
compound，shorten the optimal vulcanization time，and improve the hardness，modulus at 100% elongation，tensile strength，elongation at break，tear strength and tensile fatigue life of the vulcanizate. It was found that Twaron 1091 aramid pulp masterbatch was the best. The scorch time of the compound with Twaron 1091 aramid pulp masterbatch was prolonged by 29. 1%，the tensile strength of corresponding vulcanizate increased by 12. 4%，the tear strength increased by 17. 9%，the tensile fatigue life was prolonged by 35. 2%，and the dynamic storage modulus increased. |
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