| 废旧轮胎橡胶的常温应力诱导固相力化学脱硫化研究 |
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| 引用本文： | 张新星,卢灿辉,梁梅. 废旧轮胎橡胶的常温应力诱导固相力化学脱硫化研究[J]. 高分子材料科学与工程, 2006, 22(6): 118-121 |
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| 作者姓名： | 张新星 卢灿辉 梁梅 |
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| 作者单位： | 高分子材料工程国家重点实验室,四川大学高分子研究所,四川,成都,610065;高分子材料工程国家重点实验室,四川大学高分子研究所,四川,成都,610065;高分子材料工程国家重点实验室,四川大学高分子研究所,四川,成都,610065 |
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| 基金项目： | 国家自然科学基金项目(50233010)，国家863计划课题(2003AA322080) |
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| 摘 要： | 利用固相力化学反应器实现对废旧轮胎橡胶的常温力化学脱硫化。实验结果,表明胶粉的交联密度和凝胶含量随碾磨次数增加显著降低,通过碾磨,再硫化橡胶的力学性能得到显著提高。碾磨40次后,拉伸强度由碾磨前2.3 M Pa提高到10.9 M Pa;断裂伸长率由碾磨前的69.6%提高到290.0%。再硫化胶的断面形貌分析表明,用脱硫胶制得的胶片具有良好的界面结合。
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| 关 键 词： | 脱硫化 力化学 废旧轮胎橡胶 固相 |
| 文章编号： | 1000-7555（2006）06-0118-04 |
| 收稿时间： | 2006-04-27 |
| 修稿时间： | 2006-04-27 |
Studies on the Stress-Induced Mechanochemical Devulcanization of Waste Tire Rubber in Solid State at Ambient Temperature |
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| ZHANG Xin-xing,LU Can-hui,LIANG Mei. Studies on the Stress-Induced Mechanochemical Devulcanization of Waste Tire Rubber in Solid State at Ambient Temperature[J]. Polymer Materials Science & Engineering, 2006, 22(6): 118-121 |
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| Authors: | ZHANG Xin-xing LU Can-hui LIANG Mei |
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| Affiliation: | The State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China |
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| Abstract: | The stress-induced mechanochemical devulcanization of waste tire rubber at ambient temperature can be achieved through pan-milling.The crosslinking density and gel fraction of waste tire rubber decreases with increasing cycles of pan-milling.The mechanical properties of revulcanized rubber increase remarkably through pan-milling.After pan-milled 40 cycles,the tensile strength of revulcanized rubber increases from(2.3) MPa to (10.9) MPa,the elongation at break increases from(69.6%) to 290%.The SEM observation of cryo-fractured surface of revulcanized rubber indicates that the mechanochemically devulcanized rubber shows much better interfacial adhesion. |
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| Keywords: | devulcanization mechanochemistry waste tire rubber solid state |
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