| 预改性片层粘土在溴化丁基橡胶中的应用 |
| Application of Pre-modified Lamellar Clay in BIIR |
| 投稿时间：2019-03-06 修订日期：2019-03-06 |
| DOI：10.12136/j.issn.1000-890X.2020.03.0187 |
| 中文关键词: 粘土 有机改性 溴化丁基橡胶 复合材料 气密层 动态力学性能 气密性 |
| 英文关键词: clay organic modification BIIR composite inner liner dynamic mechanical properties air tightness |
| 基金项目: |
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| 中文摘要: |
| ：研究预改性片层粘土（100份丁苯橡胶纳米复合80份粘土）在溴化丁基橡胶（BIIR）中的应用。结果表明：预改性片层粘土在BIIR中能够实现均匀的纳米分散，粘土片层与橡胶分子链的作用力增强；与未加预改性片层粘土的胶料相比，预改性片层粘土/BIIR复合材料的交联密度减小，正硫化时间缩短，拉伸强度、拉断伸长率和拉断永久变形增大，60 ℃时的损耗因子减小，气密性明显提高，其具有很高的性价比。 |
| 英文摘要: |
| The application of pre-modified lamellar clay[SBR/clay （dosage ratio 100/80 ）nanocomposite] in brominated butyl rubber （BIIR） was studied. The results showed that，uniform nano
dispersion of the pre-modified lamellar clay in BIIR was achieved，and the interaction force between the lamellar clay and rubber molecular chain increased. Compared with the compound without the pre-modified lamellar clay，the crosslinking density of the pre-modified lamellar clay/BIIR composite decreased，the optimum curing time was shortened，the tensile strength，elongation at break and permanent deformation at break increased，the loss factor at 60 ℃ decreased，the air tightness was significantly improved.The composite
had a high performance cost ratio. |
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