| NBR/PVC/OMMT纳米复合材料的结构与性能研究 |
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| 引用本文： | 游长江,冯健中,沈洁,丁奎,段晓霞,贾德民.NBR/PVC/OMMT纳米复合材料的结构与性能研究[J].橡胶工业,2006,53(5):261-266. |
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| 作者姓名： | 游长江 冯健中 沈洁 丁奎 段晓霞 贾德民 |
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| 作者单位： | 华南理工大学,材料科学与工程学院,广东,广州,510640 |
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| 基金项目： | 中国科学院资助项目;广东省自然科学基金 |
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| 摘 要： | 采用乳液共沉法和直接混炼法制备NBR/PVC/有机蒙脱土（OMMT）纳米复合材料,研究纳米复合材料的硫化特性、微观结构、动态力学性能和热稳定性.结果表明,OMMT能够显著促进NBR的硫化反应,使NBR/PVC/OMMT纳米复合材料的焦烧时间和正硫化时间明显缩短;乳液共沉法和直接混炼法NBR/PVC/OMMT纳米复合材料是插层型纳米复合材料,乳液共沉法NBR/PVC/OMMT纳米复合材料中的OMMT分散更为均匀,其储能模量、玻璃化温度和热分解温度均高于NBR/PVC共混物和直接混炼法NBR/PVC/OMMT纳米复合材料,具有较好的动态力学性能和热稳定性.
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| 关 键 词： | 有机蒙脱土 纳米复合材料 硫化特性 动态力学性能 |
| 文章编号： | 1000-890X(2006)05-0261-06 |
| 收稿时间： | 11 24 2005 12:00AM |
| 修稿时间： | 2005年11月24 |
Structure and properties of NBR/PVC/OMMT nanocomposites |
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| YOU Chang-jiang,FENG Jian-zhong,SHEN Jie,DING Kui,DUAN Xiao-xia and JIA De-min.Structure and properties of NBR/PVC/OMMT nanocomposites[J].China Rubber Industry,2006,53(5):261-266. |
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| Authors: | YOU Chang-jiang FENG Jian-zhong SHEN Jie DING Kui DUAN Xiao-xia and JIA De-min |
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| Affiliation: | South China University of Technology,Guangzhou 510640,China |
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| Abstract: | The NBR/PVC/organomontmorillonite(OMMT) nanocomposites were prepared by(emulsion) co-precipitation technique and direct mixing technique respectively.The curing characteristics,microstructure,dynamic properties and thermal stability of the obtained nanocomposites were investigated.The results showed that t_s and t_(90) of NBR/PVC/OMMT nanocomposites reduced significantly as OMMT could accelerate the curing rate of NBR remarkably;the NBR/PVC/OMMT nanocomposites prepared by both emulsion co-precipitation technique and direct mixing technique were(intercalation) type nanocomposites;and the NBR/PVC/OMMT nanocomposites prepared by emulsion co-precipitation technique featured more uniform dispersion of OMMT and higher storage modulus,T_g and pyrolytic temperature as well as better dynamic properties and thermal stability when compared to that prepared by direct mixing technique. |
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| Keywords: | NBR PVC |
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