| NR原位改性炭黑对NR胶料性能的影响 |
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| 引用本文： | 刘晓丽,宋帅帅,李文姬,吴友平.NR原位改性炭黑对NR胶料性能的影响[J].橡胶工业,2010,57(3):145-149. |
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| 作者姓名： | 刘晓丽 宋帅帅 李文姬 吴友平 |
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| 作者单位： | 北京化工大学,北京市新型高分子材料制备与加工重点实验室,北京,100029 |
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| 摘 要： | 分别采用高温转矩流变仪和常温两辊开炼机制备NR原位改性炭黑(GCB)和NR/炭黑共混物(KCB),并制备GCB/NR和KCB/NR硫化胶,对其性能进行研究.结果表明,与KCB相比,GCB的耐热性能提高,结合橡胶质量分数增大;当炭黑用量相同时,与KCB/NR硫化胶相比,GCB/NR硫化胶的交联密度、定伸应力、压缩永久变形和储能模量较大,拉伸强度和回弹值较小;当炭黑用量小于60份时,GCB/NR硫化胶耐疲劳性能优于KCB/NR硫化胶.
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| 关 键 词： | 炭黑 结合橡胶 交联密度 原位改性 |
Influence of in-situ modification of carbon black on the properties of NR compounds |
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| LIU Xiao-li,SONG Shuai-shuai,LI Wen-ji and WU You-ping.Influence of in-situ modification of carbon black on the properties of NR compounds[J].China Rubber Industry,2010,57(3):145-149. |
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| Authors: | LIU Xiao-li SONG Shuai-shuai LI Wen-ji and WU You-ping |
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| Affiliation: | LIU Xiao-li,SONG Shuai-shuai,LI Wen-ji,WU You-ping(Beijing University of Chemical Technology,Beijing 100029,China) |
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| Abstract: | The carbon black was in-situ modified by NR at high temperature by using rheomix mixer to prepare GCB,and NR/carbon black blend(KCB) was prepared by using two-roll mill at room temperature.The GCB/NR and KCB/NR vulcanizates were prepared,and their properties were investigated.The results showed that,the thermal stability of GCB was better and its bound rubber content was higher when compared with KCB;the cross-linking density,modulus,compression set and storage modulus of GCB/NR vulcanizates were higher,and... |
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| Keywords: | NR |
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