以废旧橡胶粉为原料,制备了力化学再生胶,通过研究活化再生温度、时间以及剪切温度对再生胶中凝胶含量的影响,得到了最佳的再生工艺条件,并对废旧橡胶粉和再生胶的重均相对分子质量、氧硫元素含量、表观形貌及热分析曲线进行了分析.结果表明:最佳的力化学再生工艺条件为温度220℃、时间2.5h、剪切温度70℃;力化学法主要破坏硫交联键,能在较大程度上保持橡胶主链的完整;与废胶粉相比,力化学再生胶表面氧元素的质量分数由23.62％增至26.89％,硫元素的质量分数由1.37％降至1.07％;力化学再生胶的表面形貌极不规整,且呈相互粘结的塑性状态,其热稳定性弱于废胶粉的.
参考文献
| [1] | 李拓;白鸿柏;路纯 .编织嵌槽型金属橡胶的力学性能和阻尼性能[J].机械工程材料,2014,38(07):63-65. |
| [2] | 曾德智;李坛;雷正义 等.承压状态下氟橡胶O型密封圈耐酸性介质腐蚀性能[J].机械工程材料,2014,38(08):88-92. |
| [3] | Joseph L Massey;Jennifer C Parr;Todd A Wagler .Ultrasound devulcanization of unfilled natural rubber networks,studied via component molecular mobility[J].Polymer international,2007(7):860-869. |
| [4] | 杨罡,赵西坡,吴涛,杨贻婷,彭少贤.再生橡胶性能测试与表征方法[J].弹性体,2014(3):65-70. |
| [5] | Tao, G.;He, Q.;Xia, Y.;Jia, G.;Yang, H.;Ma, W. .The effect of devulcanization level on mechanical properties of reclaimed rubber by thermal-mechanical shearing devulcanization[J].Journal of Applied Polymer Science,2013(5):2598-2605. |
| [6] | Medhat M. Hassan;Raouf O. Aly;S.E. Abdel Aal .Mechanochemical devulcanization and gamma irradiation of devulcanized waste rubber/high density polyethylene thermoplastic elastomer[J].Journal of industrial and engineering chemistry,2013(5):1722-1729. |
| [7] | 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(06):118-121. |
| [8] | Zhang, XX;Lu, CH;Liang, M .Properties of natural rubber vulcanizates containing mechanochemically devulcanized ground tire rubber[J].Journal of Polymer Research,2009(4):411-419. |
| [9] | Balasubramanian, M .Cure modeling and mechanical properties of counter rotating twin screw extruder devulcanized ground rubber tire-natural rubber blends[J].Journal of Polymer Research,2009(2):133-141. |
| [10] | Jiang, GM;Zhao, SH;Luo, JY;Wang, YQ;Yu, WY;Zhang, CR .Microbial Desulfurization for NR Ground Rubber by Thiobacillus ferrooxidans[J].Journal of Applied Polymer Science,2010(5):2768-2774. |
| [11] | JEONG S O .ISAYEV A h Continuous ultrasonic devulcanization of unfilled butadiene rubber[J].Journal of Applied Polymer Science,2004,93(03):1166-1173. |
| [12] | Lu, Z.;Zhang, X.;Tian, D.;Li, H.;Lu, C. .Mechanochemical preparation of devulcanized ground fluoroelastomers for the enhancement of the thermal stability of nitrile-butadiene rubber vulcanizates[J].Journal of Applied Polymer Science,2012(4):1351-1358. |
| [13] | Jiang, K.;Shi, J.;Ge, Y.;Zou, R.;Yao, P.;Li, X.;Zhang, L. .Complete devulcanization of sulfur-cured butyl rubber by using supercritical carbon dioxide[J].Journal of Applied Polymer Science,2013(4):2397-2406. |
| [14] | G.K.Jana;C.K.Das .Recycling Natural Rubber Vulcanizates through Mechanochemical Devulcanization[J].Macromolecular Research,2005(1):30-38. |
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