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| 纳米SiO2改性NR/SBR共混胶的结构与性能研究 | |
| 引用本文： | 叶世荣,蔡伟宁,李志君,胡树,周宇,杨尚毅.纳米SiO2改性NR/SBR共混胶的结构与性能研究[J].弹性体,2012,22(3):68-72. |
| 作者姓名： | 叶世荣 蔡伟宁 李志君 胡树 周宇 杨尚毅 |
| 作者单位： | 1. 海南大学高分子材料与工程系,海南海口,570228 2. 海南天然橡胶产业集团股份有限公司金山加工分公司,海南乐东,572527 3. 海南大学高分子材料与工程系,海南海口570228;热带岛屿资源先进材料教育部重点实验室,海南海口570228 4. 北京中石伟业技术有限公司深圳市分公司,广东深圳,518035 |
| 基金项目： | 海南省自然科学基金资助项目（50302） |
| 摘 要： | 研究了纳米SiO2加入方式及用量对NR/SBR共混胶的正硫化时间、力学性能的影响,并研究了纳米SiO2改性前后共混胶的耐热分解性能、耐热空气老化性能及微观形态结构.结果表明:纳米SiO2的加入对共混胶的正硫化时间、力学性能及耐热稳定性能有较大影响；当纳米SiO2加入量为7％(质量分数)并采用NR/SBR共混均匀后先加入纳米SiO2,再加入小料、硫磺的方式制备NR/SBR共混胶时,纳米SiO2通过使NR/SBR共混胶的分散相细化并使共混胶的整体交联密度提高,有效地提高了NR/SBR共混胶的综合力学性能和耐热稳定性能,达到了对NR/SBR共混胶良好的补强改性效果. |
| 关 键 词： | 天然橡胶/丁苯橡胶共混胶 纳米SiO2 增强改性 结构与性能 |
Structure and properties of nano-SiO2 modified NR/SBR blends |
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| YE Shi-rong , CAI Wei-ning , LI Zhi-jun , HU Shu , ZHOU Yu , YANG Shang-yi.Structure and properties of nano-SiO2 modified NR/SBR blends[J].China Elastomerics,2012,22(3):68-72. | |
| Authors: | YE Shi-rong CAI Wei-ning LI Zhi-jun HU Shu ZHOU Yu YANG Shang-yi |
| Affiliation: | 1. Department of Polymer Material Science and Engineering, Hainan University, Haikou 570228, China; 2. Hainan Natural Rubber Industry Group Co. ,Ltd. , Jinshan Processing Branch ,Le- dong 572527, China;3. Key Laboratory of Ministry of Education for Application Technology of Chemical Materials in Hainan Superior Resources, Haikou 570228, China;4. Beijing JONES Co. , Ltd. , Shenzhen Branch, Shenzhen 518035, China) |
| Abstract: | The effects of the added methods and amount of nano-SiO2 on the vulcanization time, mechanical properties of NR/SBR blends were investigated. Hot air aging properties and morphology structure of NR/SBR blends were also investigated. The results showed that, nano-SiOs＇s addition has a greater impact on the vulcanization time,mechanical properties and thermal stability of the blends; when NR/SBR was evenly blended, added nano-SiO2, followed by small materials, combined with the condition that nano-SiO2＇ s addition was 7%, the nano-SiO2 would develop the overall crosslink density of the NR/SBR blends, by refining their phase dispersion. It also effectively improved mechanical prop- erties and thermal stability of the above blends, reached a good result in reinforcement and modification for NR/SBR blends. |
| Keywords: | NR/SBR blends nano-SiO2 enhance modification structure and properties |
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