茶多酚基多功能助剂TPN的制备及其在胎面胶中的应用研究

摘要

A new multifunctional rubber additive TPN was prepared by using tea polyphenol,N-tert-butylbenzothiazole-2-sulphenamide and formaldehyde as reactants based on the mechanism of Mannich reaction.It was characterized by infrared spectrum (IR ) and thermogravimetic analysis (TGA).It was then used in tire tread compounds to investigate its effects on the processing, mechanical and anti-aging properties of the compounds.The results showed that TPN was able to im-prove the curing rate,mechanical strength and anti-aging properties of the compounds.When its content was 1 .5 phr,the tire tread compounds had higher wet-skid resistance and lower compressive temperature-rise in comparison with the controlled samples.%基于曼尼希反应原理,以茶多酚、N-叔丁基-2-苯并噻唑次磺酰胺和甲醛为原料,制备了一种新型的橡胶加工助剂,采用红外光谱和热失重对其进行了表征.然后将该新型助剂应用到白炭黑补强的胎面胶中,研究该新型助剂对胎面胶加工性能、物理机械性能和耐老化性能的影响.结果表明,合成的新型茶多酚基助剂TPN应用在白炭黑填充的胎面胶中具有促进硫化、提高胎面胶强度和耐老化的多重作用.当TPN用量为1.5份时,还可以显著降低胎面胶生热和提高抗湿滑性.