裂解炭黑/炭黑N330并用对天然橡胶胶料性能的影响
Effect of CBp/Carbon Black N330 Blending on Properties of NR Compounds
董海凌 1姚慧丹 1冯馨从 1杨惠茹 1刘吉文 1孙翀1
作者信息
- 1. 青岛科技大学 高分子科学与工程学院,山东 青岛 266061
- 折叠
摘要
研究裂解炭黑(CBp)/炭黑N330并用对天然橡胶(NR)胶料性能的影响.结果表明:炭黑N330的比表面积大于CBp,灰分含量明显小于CBp,CBp与炭黑N330的含碳官能团种类及含量差别不大;单一填料硫化胶的表面粗糙度比并用填料硫化胶小,50份炭黑N330硫化胶的表面粗糙度小于50份CBp硫化胶;随着CBp/炭黑N330并用比的增大,胶料的结合胶含量减小,储能模量在小应变下减幅较大,硫化胶的交联密度、邵尔A型硬度、定伸应力和撕裂强度减小,拉断伸长率和回弹值增大,拉伸强度无明显变化,耐磨性能变差.
Abstract
The effect of pyrolysis carbon black(CBp)/carbon black N330 blending on the properties of natural rubber(NR)compounds was investigated.The results showed that the specific surface area of carbon black N330 was larger than that of CBp,the ash content was significantly lower than that of CBp,and the types and contents of carbon-containing functional groups in CBp and carbon black N330 were similar.The surface roughness of the vulcanizate with a single filler was smaller than that of the vulcanizate with blending fillers,and the surface roughness of the vulcanizate with 50 phr carbon black N330 was smaller than that of the vulcanizate with 50 phr CBp.As the CBp/carbon black N330 blending ratio increased,the bound rubber content of the compound decreased,the storage modulus decreased significantly under small strain,the crosslinking density,Shore A hardness,tensile stress at given elongation and tear strength of the vulcanizate decreased,while the elongation at break and rebound value increased,the tensile strength changed little,but the wear resistance deteriorated.
关键词
裂解炭黑/炭黑N330/天然橡胶/表面粗糙度/储能模量/物理性能Key words
CBp/carbon black N330/NR/surface roughness/storage modulus/physical property引用本文复制引用
出版年
2025
NETL
NSTL
万方数据