• 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 >Physical properties of unsaturated polyester resin from glycolyzed PET fabrics
【24h】

Physical properties of unsaturated polyester resin from glycolyzed PET fabrics

机译：乙二醇化PET织物中不饱和聚酯树脂的物理性能

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

Physical properties of unsaturated polyester resins (UPE resins) prepared from glycolyzed poly (ethylene terephthalate) (PET) and PET/cotton blended fabrics were investigated. Initially, PET and PET/cotton blended fabrics were chemically recycled by glycolysis. The depolymerizations were carried out in propylene glycol with the presence of zinc acetate as a catalyst. The reaction time was varied at 4, 6, and 8 h. The glycolyzed products were then esterified using maleic anhydride to obtain UPE resins. The prepared resins were cured using styrene monomer, methyl ethyl ketone peroxide, and cobalt octoate as a crosslinking agent, an initiator and an accelerator, respectively. The cured resin products were tested for their mechanical properties and thermal stability. The results indicated that, among the fabric based resins, one prepared from the 8-h glycolyzed product possessed the highest mechanical properties those are tensile strength, tensile modulus, flexural strength, impact strength, and hardness. The highest thermal stability was also found in the cured resin prepared from the 8-h glycolyzed product. The mechanical properties of fabric based resins were slightly lower than those of the bottle based resin. (c) 2007 Wiley Periodicals, Inc.
机译：研究了由乙二醇化聚对苯二甲酸乙二醇酯（PET）和PET /棉混纺织物制备的不饱和聚酯树脂（UPE树脂）的物理性能。最初，PET和PET /棉混纺织物通过糖酵解进行化学回收。在乙酸锌作为催化剂存在下，在丙二醇中进行解聚。反应时间在4、6和8小时变化。然后使用马来酸酐将糖化产物酯化，得到UPE树脂。所制备的树脂分别使用苯乙烯单体，过氧化甲乙酮和辛酸钴作为交联剂，引发剂和促进剂进行固化。测试固化的树脂产品的机械性能和热稳定性。结果表明，在基于织物的树脂中，由8-h乙二醇化产物制得的一种具有最高的机械性能，即拉伸强度，拉伸模量，弯曲强度，冲击强度和硬度。在由8小时糖基化产物制备的固化树脂中也发现了最高的热稳定性。织物基树脂的机械性能略低于瓶基树脂的机械性能。 （c）2007年Wiley Periodicals，Inc.

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