• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >CRcomposites with improved processing safety crosslinked via Heck's reaction
【24h】

CRcomposites with improved processing safety crosslinked via Heck's reaction

机译：Crcomposites通过Heck反应改善加工安全性交联

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The aim of this study was to optimize the composition of the chloroprene rubber (CR) composites crosslinked via the Heck-type reaction to ensure their safe processing at elevated temperature. The developed curing system consisting of iron (III) acetylacetonate (Fe(acac)) and triethanolamine (TEOA) demonstrates high activity and more eco-friendly composition in comparison with metal oxide system, commercially used for CR crosslinking. However, the high activity of Fe(acac)/TEOA system results in a short scorch time, which is the greatest disadvantage regarding the safe processing of CR rubber and thus, must be improved. Therefore, CR compounds with Fe(acac) in the presence of different additives were studied. The longest scorch times (t(02)) were observed for rubber compounds with urotropine (U), N-cyclohexyl-2-benzothiazole sulfenamide (CBS) or salicylic acid. Moreover, vulcanizates containing these additives exhibited higher tensile strengths and elongation at breaks compared to CR crosslinked with Fe(acac)/TEOA system.
机译：本研究的目的是优化通过Heck型反应交联的氯丁橡胶（CR）复合材料的组成，以确保其在高温下的安全加工。与商业上用于CR交联的金属氧化物体系相比，开发的由乙酰丙酮铁（III）和三乙醇胺（TEOA）组成的固化体系显示出高活性和更环保的组成。然而，Fe（acac）/TEOA体系的高活性导致焦烧时间短，这是CR橡胶安全加工的最大缺点，因此必须加以改进。因此，研究了在不同添加剂存在下铬与铁（acac）的化合物。对于含有乌洛托品（U）、N-环己基-2-苯并噻唑亚砜酰胺（CBS）或水杨酸的橡胶化合物，观察到最长的焦烧时间（t（02））。此外，与Fe（acac）/TEOA体系交联的CR相比，含有这些添加剂的硫化胶具有更高的拉伸强度和断裂伸长率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号