• 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 >Synthesis and characterizations of a latent polyhedral oligomeric silsequioxane-containing catalyst and its application in polybenzoxazine resin
【24h】

Synthesis and characterizations of a latent polyhedral oligomeric silsequioxane-containing catalyst and its application in polybenzoxazine resin

机译：潜在的含多面体低聚倍半硅氧烷的催化剂的合成，表征及其在聚苯并恶嗪树脂中的应用

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

In this article, a novel latent curing agent, octa(paratoluenesulfonic acid ammomium salt) (OPAAS) polyhedral oligomeric silsequioxane was synthesized and used in modifying the polybenzoxazine/2,2'-(1,3-phenylene)-bis(4,5-dihydro- oxazoles) (PBO) (PBZ/PBO) resin. The liberated octa(aminophenyl) silsesquioxane and paratoluenesulfonic acid can catalyze the ring-opening reaction of benzoxazine (BZ) resin. The initial curing temperature (T _i), peak curing temperature (T _p) and the Enthalpy of the curing temperature had significantly decreased with respect to pristine BZ/PBO resin. When the OPAAS amount was 3 wt %, the peak curing temperature decreased from 233.7 to 218.2°C. Also, PBZ/PBO/OPAAS composites exhibited better storage modulus than pure PBZ/PBO resin. Meanwhile, PBZ/PBO/OPAAS composites are more thermally stable than PBZ/PBO resin.
机译：本文合成了一种新型的潜在固化剂八（对甲苯磺酸铵盐）（OPAAS）多面体低聚倍半硅氧烷，并将其用于改性聚苯并恶嗪/ 2,2'-（1,3-亚苯基）-双（4,5） -二氢-恶唑（PBO）（PBZ / PBO）树脂。释放的八（氨基苯基）倍半硅氧烷和对甲苯磺酸可以催化苯并恶嗪（BZ）树脂的开环反应。相对于原始的BZ / PBO树脂，初始固化温度（T _i），峰值固化温度（T _p）和固化温度的焓显着降低。当OPAAS量为3wt％时，峰值固化温度从233.7℃降低至218.2℃。同样，PBZ / PBO / OPAAS复合材料比纯PBZ / PBO树脂具有更好的储能模量。同时，PBZ / PBO / OPAAS复合材料比PBZ / PBO树脂更热稳定。

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