【作者】 高轶；

【导师】 赵素合；

【作者基本信息】 北京化工大学 ， 材料加工工程， 2006， 硕士

【摘要】 本论文研究工作分为四个部分：1．从水玻璃浓度、反应最终达到的PH值、陈化时间、醇类物质对反应体系是否有影响几个方面考察了白炭黑制备的工艺条件，发现当水玻璃溶液的浓度在5％时，在PH达到7左右，出现透明的凝胶；反应体系的PH值控制在7时，得到的白炭黑—SSBR硫化胶的综合性能最佳；陈化时间为1h时，白炭黑纳米粒子半径较小。在反应体系中加入乙二醇后，可将白炭黑粒子隔离，减弱白炭黑粒子的团聚，同时能增加白炭黑表面有机成份，提高白炭黑在橡胶基体中的分散。2．通过DSC测试发现，硅烷偶联剂和白炭黑在80℃发生缩合反应，当偶联剂用量1％～3％时缩合度明显增高。且当偶联剂达3％时，可达最佳的性能价格比。改性SiO₂粉体／橡胶复合材料的ΔG′，tan δ明显小于SiO₂粉体／橡胶复合材料，相态结构的观察结果表明MSiO₂与胶料间的界面作用强，分散性好。3．采用阴离子活性聚合技术，用自主开发的多锂引发剂，以苯乙烯、丁二烯为基础单体，合成出具有活性端基的锡偶联结构星形大分子，在此基础上，采用自行研制的有机化白炭黑与聚合胶液复合→共凝聚→研制纳米复合胶料。研究了复合纳米填料的加入方式。4．对于上述研制的星形锡偶联的溶聚丁苯橡胶进行结构与性能的研究。将碳黑加入胶料中，由于偶联端为Sn-C弱键，可转键接于炭黑表面，增强炭黑与橡胶的界面作更多还原

【Abstract】 The research of the thesis can be divided into four parts: 1. The influence of NaSiO₃ concentration, reaction temperature, aging time, and glycol for the reaction system were studied. A preparation technology was assured. The NaSiO₃ concentration was controlled at 5%, the reaction temperature for "crystal seed" was limited at 40 ℃ and nano-SiO₂ was 80 ℃. The final pH value was limited around 7, and aging time was 1h. We found that the physical mechanical properties of the home made nano-SiO₂/SSBR were better than the market nano-SiO₂/SSBR. 2. The results showed that the silanol groups on the surface of SiO₂ reacted with the alkoxyl group of silicane coupling agents at 85⁹0℃. The peak area of hydroxyl of SiO₂ and nano-SiO₂ modified （MSiO₂） in FTIR spectrum was quantitatively determined, and so the specific content of hydroxyl on the surface of SiO₂ was obtained. By the way of observing TEM photograph the dispersion of MSiO₂ in Sn-SSBR was markedly improved. And at the same time the modulus, the tensile strength of MSiO₂/Sn-SSBR composite were increased and the tear strength, elongation of that were更多还原