以七水合氯化镧（LaCl₃·7H₂O）和脂肪酸丁酯（FAB）为原料，以乙醇为溶剂，合成FAB-La配合物。探讨了反应温度、物质的量的比、pH等反应条件对FAB-La配合物产率的影响，确定了最佳合成条件，并研究了所合成的FAB-La配合物对丁苯橡胶（SBR）的硫化促进作用，探讨了FAB-La配合物用量对橡胶材料加工及使用性能的影响。实验结果表明，FAB-La配合物最佳的合成条件为：合成温度为50℃，pH=7~8，LaCl₃·7H₂O与FAB物质的量的比为1/1.1。红外光谱分析结果表明，FAB与LaCl₃发生了一定的化学作用，添加FAB-La配合物可明显提高SBR混炼的硫化性能及硫化胶力学性能。

FAB-La complex is synthesized by using butyl ester of fatty acid (FAB) and seven hydrate lanthanum chloride (LaCl₃·7H₂O) as raw materials and ethanol solution as solvent.The effects of reaction temperature,molar ratio of FAB to LaCl₃ and pH on the yield of FAB-La complex are studied and the optimum synthesis conditions are confirmed.The promotion of the prepared FAB-La complex on the vulcanization of styrene-butadiene rubber (SBR) is also detected.The influences of FAB-La adding amount on the processing and using performances of rubber materials are discussed.The experimental result shows that the optimal synthesis conditions for FAB-La complex are as follows:reaction temperature of 150℃,pH of 7-8 and n(LaCl₃):n(FAB)=1:1.1.The FTIR analysis shows that certain chemical reaction happens between FAB and LaCl₃.It is also clear that the prepared FAB-La complex can significantly improve the vulcanization property and mechanical property of SBR.

张青海(1983-),男,硕士,讲师,主要从事高分子材料加工改性研究,591107222@qq.com