摘要
通过橡胶加工分析仪和毛细管流变仪分别研究了添加偶联剂KH560、Si69、NXT和不加偶联剂的白炭黑填充天然橡胶的填料网络结构,考察了不同偶联剂对白炭黑填充NR的流变形为的影响。结果表明,3种偶联剂均改善了白炭黑的表面特性,使白炭黑填料网络化程度减轻,储能模量和损耗模量变小,Payne效应大大减弱,改善了加工性能。其中偶联剂NXT的改性综合效果最佳。
The filler networks of silica filled natural rubber（NR） added coupling agent KH560 and Si69, NXT and without coupling agent were studied by rubber processing analyzer（RPA） and capillary rheometer. The effects of different coupling agents on the rheological behavior of silica filled NR were investigated. The results show that the three kinds of coupling agents could improve the surface characteristics of silica, lessen the silica network, reduce the storage modulus and loss modulus, the Payne effect becomes weakened greatly, and the processability is improved. The comprehensive modification effect of coupling agent NXT is the best.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2017年第2期72-77,共6页
Polymer Materials Science & Engineering
基金
基金项目:黔科合LH字[2014]7608
