The morphology of wax films precipitated from different kinds of protective waxes in natural rubber/butadiene rubber sidewall compounds under different storage conditions was characterized by scanning electron microscopy,and the influences of environmental temperature and humidity on the morphology of wax films were studied.The results showed that the low-carbon number normal paraffins in the protective wax composition were easy to precipitate flake-shaped wax film at low temperature(4℃)and room temperature,and the high-carbon number normal paraffins and isoparaffins were easy to precipitate aggregated spherical wax film at 40℃.The alternation of temperatures from 40 to 20℃promoted the precipitation of high-carbon number paraffins,facilitating the formation of a continuous aggregated spherical wax film.Humidity variation at high temperature had little effect on the morphology of wax film.
关键词
扫描电子显微镜/防护蜡/胎侧胶/碳数分布/蜡膜形貌/停放条件/温度
Key words
scanning electron microscopy/protective wax/sidewall compound/carbon number distribution/wax film morphology/storage condition/temperature
维普
万方数据