【摘要】 研究改性石墨矸石粉补强天然橡胶(NR)的性能,并以煅烧温度、煅烧时间和偶联剂用量为3个因子通过正交试验来研究石墨矸石粉的最佳改性条件。结果表明:与炭黑补强胶料相比,石墨矸石粉补强胶料具有相似的硫化特性,焦烧时间略长。改性石墨矸石粉对NR具有明显的补强作用。SPSS软件分析的硫化胶物理性能结果显示,改性条件对补强性能影响主次顺序为偶联剂用量、煅烧温度和煅烧时间。正交试验分析确定石墨矸石粉的最佳改性条件为:煅烧温度800℃,煅烧时间1.5h,偶联剂用量(占石墨矸石粉质量的比例)2.2%。更多还原

【Abstract】 The properties of NR reinforced by the modified graphite gangue powder were studied,and the optimum modification conditions of the graphite gangue powder were obtained by orthogonal experiment considering three main influencing factors: calcination temperature,calcination time and addition level of coupling agent.The results showed that,compared with those of carbon black reinforced NR,the graphite gangue powder reinforced NR possessed similar curing characteristics and slightly longer scorch time.The graphite gangue powder possessed obvious reinforcement on NR.It was indicated from the SPSS software analysis that,in descending order,the degree of significance of those three factors on the reinforcing properties was listed as:addition level of coupling agent,calcination temperature and calcination time.The optimum modification condition was as follows: calcination temperature at 800 ℃,calcination time of 1.5 h,and addition level of coupling agent(weight percent in graphite gangue powder) at 2.2%.更多还原