新型高结构炭黑填料在天然橡胶中的应用  

Application of a new high structure carbon black packing in natural rubber

作　　者：唐成玉 何宇 刘平 李琳 谭苏芸 辜其隆 陈建 Tang Cheng-yu;He Yu;Liu Ping;Li Lin;Tan Su-yun;Gu Qi-long;Chen Jian(College of Materials Science and Engineering,Sichuan University of Science&Engineering,Sichuan Zigong 643000,China;Sichuan Province Key Laboratory for Corrosion and Protection of Material,Sichuan University of Science&Engineering,Sichuan Zigong 643000,China)

机构地区：[1]四川轻化工大学材料科学与工程学院,四川自贡643000 [2]材料腐蚀与防护四川省重点实验室,四川自贡643000

出　　处：《炭素技术》2020年第5期51-55,71,共6页Carbon Techniques

基　　金：国家自然科学基金面上项目(51572177);四川省科技厅项目(2018FZ0071)。

摘　　要：自制一种新型高结构炭黑(NCB),并按不同的比例与N330共同作为填料,通过机械混炼后测定其力学性能,用SEM观察其断裂面的形貌。采用超薄切片机将硫化后的橡胶切成平台面,置于原子力显微镜下观测炭黑在橡胶中的分散性。结果表明:该高结构炭黑颗粒呈球形,颗粒均匀,直径在150 nm左右。将其与N330共同充当填料,NCB占比为30%时,复合材料的玻璃化转变温度最低,为-44.06℃,其耐低温性能最好。当NCB的占比在50%时,炭黑在橡胶中分散性较好,炭黑/橡胶复合材料的综合性能较好。A new type of high structure carbon black(NCB) is made and characterized. The composites by mechanical mixing with the obtained high structure carbon black and N330 in different proportions are prepared. And the mechanical properties are determined and the fracture surface morphology is observed by SEM. The dispersibility of carbon black in rubber is observed under atomic force microscope. The results show that the high structure carbon black particles are spherical in shape and uniform with the diameter of about 150 nm. With N330 together as a filler, NCB accounted for 30%, the glass transition temperature of composite materials is the lowest(-44.06 ℃), and the low temperature resistance performance is the best. When the proportion of NCB is 50%, carbon black in rubber has a better dispersion and the comprehensive performance of carbon black/rubber composite material is better.

关 键 词：高结构炭黑 力学性能 分散性 

分 类 号：TQ127.11[化学工程—无机化工] TB332[一般工业技术—材料科学与工程]