使用抗聚集能力表征白炭黑的分散性  

Characterization of Silica Dispersion by Using Aggregation Resistance

作　　者：蒋云 王丹灵[1] 任福君[1] 陈生[1] JIANG Yun;WANG Danling;REN Fujun;CHEN Sheng(Zhongce Rubber Group Co.,Ltd,Hangzhou 310018,China)

机构地区：[1]中策橡胶集团有限公司

出　　处：《轮胎工业》2019年第8期476-481,共6页Tire Industry

摘　　要：首先证明白炭黑聚集是决定胶料模量的最主要因素,并且不受硫化网络的影响,然后尝试用白炭黑聚集程度之差[δ(ΔG′)(G′为弹性模量)]来表征白炭黑的分散性。研究结果表明:δ(ΔG′)越大,白炭黑的抗聚集能力越弱;δ(ΔG′)与胶料的门尼焦烧时间、定伸应力和拉伸强度都有非常好的相关性,进一步表明了δ(ΔG′)的研究意义。This work showed that the aggregation of silica was the most important factor influencing the modulus of silica filled compound,and it was not significantly affected by the crosslink of rubber network.Then the aggregation resistance of silica[δ(ΔG′),G′ was modulus of elasticity] was used to characterize silica dispersion. The results showed that,the bigger the δ(ΔG′),the weaker the aggregation resistance of silica. In addition,δ(ΔG′)had good correlation with the scorch time,stress at fixed elongation and tensile strength of the compound,which further demonstrated the research significance of δ(ΔG′).

关 键 词：高分散性白炭黑 白炭黑聚集 抗聚集能力 弹性模量 分散性 

分 类 号：TQ330.63[化学工程—橡胶工业] TQ30.383