首页    期刊浏览 2024年11月30日 星期六
登录注册

文章基本信息

  • 标题:Effects of Zinc-Free Processing Aids on Silica-Reinforced Tread Compounds for Green Tires
  • 本地全文:下载
  • 作者:Nam Chul Kim ; Sung Ho Song
  • 期刊名称:International Journal of Polymer Science
  • 印刷版ISSN:1687-9422
  • 电子版ISSN:1687-9430
  • 出版年度:2019
  • 卷号:2019
  • 页码:1-10
  • DOI:10.1155/2019/9123635
  • 出版社:Hindawi Publishing Corporation
  • 摘要:With the development of “green tires” in the tire industry, the conventional carbon black filler that is used in tread formulations is being replaced with silica. Generally, this requires the addition of a processing aid, containing zinc ion, which acts as a lubricant and dispersing agent. However, because zinc is a heavy metal, zinc-free processing aids (ZFAs) are required to satisfy worldwide environmental concerns. We present herein a series of catalytically synthesized ZFAs and evaluate the effects of replacing zinc ion-containing processing aids (ZCAs) on a silica tread formulation. Interestingly, replacing ZCA with ZFA in a two parts per hundred rubber (phr) by weight formulation improved both its tensile strength and elongation by as much as 31% and 20%, respectively. ZFA-rubber formulations also exhibited a twofold enhancement in fatigue properties over those of ZCA-rubber formulations. Furthermore, pneumatic tires were fabricated from our ZFA-rubber formulation and compared against tires containing ZCAs. The ZFA-rubber composite exhibited improved dry and wet braking and rolling resistance due to enhanced dispersion of silica in the rubber matrix. These results show that rubber composites prepared with ZFAs may be promising in tire engineering applications.
国家哲学社会科学文献中心版权所有