摘要
采用橡胶加工分析仪和恒速型双筒毛细管流变仪研究了炭黑填充不同牌号溶聚丁苯橡胶(SSBR)的动态黏弹性能和流变性能。结果表明,当炭黑用量增加至20份时,SSBR-T 2003混炼胶出现炭黑网络结构,当炭黑用量增加至25份时,SSBR-2305混炼胶出现炭黑网络结构;随着炭黑用量的增加,SSBR-T 2003混炼胶的储能模量(G')和损耗模量(G″)增大,Payne效应越明显,而SSBR-2305混炼胶的G'和G″也均增大,但未发生突增,Payne效应的变化微弱;不同用量炭黑填充的SSBR混炼胶均呈现假塑性流体的特性,且SSBR-T 2003混炼胶的非牛顿性较显著;SSBR-T 2003混炼胶的流动界面状态基本稳定,而SSBR-2305混炼胶的流动在高剪切速率下发生黏/滑的转变。
The dynamic viscoelasticity and rheo-logical properties of different grades of solution pol-ymerized styrene-butadiene rubber （ SSBR ） filled with carbon black were studied using rubber pro-cessing analyzer and double cylinder capillary rhe-ometer with constant speed. The results showed that the carbon black network formed in SSBR-T 2003 compound at 20 phr carbon black, and in SSBR-2305 compound at 25 phr carbon black. With the increase of carbon black, the storage modulus and loss modulus of SSBR-T 2003 compound increased and the Payne effect got more obvious, the storage modulus and loss modulus of SSBR-2305 compound also increased, but there was no sharp increase, and the Payne effect was weak. The SSBR com-pounds with different amounts of carbon black ex-hibited pseudoplastic fluid behavior and the SSBR-T 2003 compounds showed more significant non-New- tonian behavior. The flow interface of the SSBR-T 2003 compound was basically stable, but that of the SSBR-2305 compound undergone a chang from stick to slip.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
2013年第3期216-219,共4页
China Synthetic Rubber Industry
基金
国家自然科学基金资助项目(50273016)
关键词
溶聚丁苯橡胶
炭黑
网络结构
结合胶
动态黏弹性能
流变性能
solution polymerized styrene-butadi-ene rubber
carbon black
network structure
carbongel
dynamic viscoelasticity
rheological property
