• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Asian Paint Industry Council(APIC) Meeting; 20040919-22; China World Hotel(CN) >The application of molecular distillation technology in separating free TDI
【24h】

The application of molecular distillation technology in separating free TDI

机译：分子蒸馏技术在分离游离TDI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

The technology to synthesize polyurethane (PU) by the reaction between toluene diisocyanate (TDI) and hydroxyl compounds is widely used in the production of curing agents used for paints. For example, the addition compounds manufactured by the reaction between TMP (tri-methyl propane) and TDI (toluene diisocyanate), or the prepolymers and tripolymers made with TDI are all used widely because of their excellent properties. However , the content of the free TDI in curing agents processed by the old method popularly used in China for decades is very high, generally exceed 2%, and may reach 6%. It is harmful not only to the health of the painter but also to the environment because of the volatilization of TDI. The paint researchers worked hard on studying how to decrease the content of the free TDI since long ago, spending much manpower and material resources, and had never been successful because it is too much difficult to do it.
机译：通过甲苯二异氰酸酯（TDI）和羟基化合物之间的反应合成聚氨酯（PU）的技术被广泛用于涂料用固化剂的生产中。例如，通过TMP（三甲基丙烷）与TDI（甲苯二异氰酸酯）反应制得的加成化合物，或由TDI制得的预聚物和三聚物由于其优异的性能而被广泛使用。但是，几十年来在中国流行使用的旧方法加工的固化剂中游离TDI的含量很高，通常超过2％，甚至可能达到6％。由于TDI的挥发，它不仅对画家的健康有害，而且对环境有害。涂料研究人员自很久以来就一直在努力研究如何减少免费TDI的内容，花费大量的人力和物力，但从未成功过，因为这样做太难了。

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