湿法球磨超细重质碳酸钙在天然橡胶中的应用  

Ultrafine Heavy Calcium Carbonate In Natural Rubber By Wet Ball Milling

作　　者：钟晨 肖毓秀 甘明龙 叶慧贤 Zhong Chen;Xiao Yuxiu;Gan Minglong;Ye Huixian(Jiangxi Guangyuan Chemical Co.,Ltd.,Ji'an 331500,China;Jinggangshan University,Ji'an 650216,China)

机构地区：[1]江西广源化工有限责任公司,江西吉安331500 [2]井冈山大学,江西吉安650216

出　　处：《云南化工》2024年第11期148-150,共3页Yunnan Chemical Technology

摘　　要：分别将雷蒙磨生产的600目重质碳酸钙,亿丰磨干法生产的2000目重质碳酸钙,湿法球磨生产的5000目重质碳酸钙应用在天然橡胶中,并与添加轻质碳酸钙的胶料进行对比研究,结果表明:填充重质碳酸钙的天然橡胶胶料的门尼黏度低,焦烧时间短,加工工艺性能好,且添加CC-5000的胶料的正硫化时间接近添加轻质碳酸钙的胶料。添加CC-5000的硫化胶其拉伸强度﹑100%和300%定伸强度优于轻钙。从撕裂强度来看,CC-5000添加到天然橡胶中的硫化胶的撕裂强度接近于添加轻质碳酸钙的硫化胶撕裂强度。In this study,600 mesh ground calcium carbonate(GCC)produced by Raymond mill,2000 mesh GCC produced by Yifeng dry grinding,and 5000 mesh GCC produced by wet ball milling were respectively applied to natural rubber,and compared with precipitated calcium carbonate(PCC).The results showed that the natural rubber compound filled with GCC had low Mooney viscosity,short scorch time and improved processing performance,and the positive vulcanization time of the compound added with ultrafine GCC CC-5000 by wet ball milling was close to that of the compound added with PCC.The tensile strength,100%and 300%fixed elongation strength of the vulcanized rubber with CC-5000 is better than that of PCC.From the point of view of tear strength,the tear strength of CC-5000 vulcanized rubber is close to the tear strength of vulcanized rubber with PCC.

关 键 词：天然橡胶 重质碳酸钙 轻质碳酸钙 力学性能 

分 类 号：TQ330.38[化学工程—橡胶工业]