| 改性二氧化硅/NR纳米复合材料结构与性能研究 |
| Structure and properties of modified silica/NR nanocomposite |
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| DOI： |
| 中文关键词: 改性二氧化硅 天然胶乳 纳米复合材料 微观结构 物理性能 |
| 英文关键词: modified silica natural rubber latex nanocomposite microstructure physical properties |
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| 中文摘要: |
| 采用聚二甲基二烯丙基氯化铵（PDDA）对二氧化硅进行表面改性，制备改性二氧化硅/NR纳米复合材料，并对其微观结构和物理性能进行研究。结果表明，改性二氧化硅均匀分散在天然胶乳基体中；扫描电子显微镜分析显示复合材料呈界面模糊的海岛结构；改性二氧化硅/NR纳米复合材料的物理性能较NR胶料大幅提高；随着改性二氧化硅用量的增大，改性二氧化硅/NR纳米复合材料的物理性能先提高后降低；当改性二氧化硅的用量为5.3份时，纳米复合材料的综合物理性能较好。 |
| 英文摘要: |
| The surface of silica was modified by polydimethyl diallylammonium chloride，and the modified silica/NR nanocomposite was prepared，and its microstructure and physical properties were investigated.The results showed that modified silica was uniformly dispersed in nature rubber latex；it was found by SEM that there was sea-island structure without clear phase boundary in silica/NR nanocomposite；compared with NR compound，the physical properties of modified silica/NR nanocomposite increased significantly；as the addition level of modified silica increased，the physical properties of modified silica/NR nanocomposite increased first and then decreased；when the addition level of modified silica was 5.3 phr，the composite possessed better comprehensive physical properties. |
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