| 有机粘土/丁基橡胶和有机粘土/氯化丁基橡胶纳米复合材料的结构与性能 |
| Structure and Properties of Organic Clay/IIR and Organic Clay/CIIR Nanocomposites |
| 投稿时间：2020-02-22 修订日期：2020-02-22 |
| DOI：10.12136/j.issn.1000-890X.2020.08.0575 |
| 中文关键词: 丁基橡胶 氯化丁基橡胶 有机粘土 纳米复合材料 插层型结构 气体阻隔性能 |
| 英文关键词: IIR CIIR organic clay nanocomposites intercalated structure gas barrier property |
| 基金项目:国家自然科学基金资助项目（51573124） |
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| 中文摘要: |
| 通过熔体插层法制备了有机粘土/丁基橡胶纳米复合材料（IIRCNs）和有机粘土/氯化丁基橡胶纳米复合材料（CIIRCNs），考察了有机粘土用量对纳米复合材料硫化特性、物理性能和气体阻隔性能的影响。结果表明：随着有机粘土用量的增大，IIRCNs和CIIRCNs的t90不断延长，硫化速率降低；拉伸强度和撕裂强度先增大后减小，有机粘土用量为10份时达到最大值；由于加入有机粘土，IIRCNs和CIIRCNs的气体阻隔性能变好，且后者更优。X射线衍射和扫描电子显微镜分析表明，有机粘土用量为10份时，其均匀分散于橡胶基体中，形成了插层型结构。 |
| 英文摘要: |
| Organic clay/butyl rubber nanocomposites（IIRCNs） and organic clay/chlorinated butyl rubber nanocomposites （CIIRCNs ） were prepared by melt intercalation. The effects of the addition level of organic clay on the vulcanization properties，physical properties and gas barrier properties of the nanocomposites were investigated. The results showed that the t90 of IIRCNs and CIIRCNs were prolonged，and the curing rate decreased with the increase of the addition level of organic clay. The tensile strength and tear strength first increased and then decreased，and the maximum values were reached when the addition level of organic clay was 10 phr. Due to the addition of organic clay，IIRCNs and CIIRCNs had better gas barrier properties，and the latter was better. The results of X-ray diffraction and scanning electron microscopy showed that when the addition level of organic clay was 10 phr，it was uniformly dispersed in the rubber matrix and formed an intercalated structure. |
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