• 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 >Action of hydrocarbon and ester plasticizer in uethane elastomer for seaing puroposes
【24h】

Action of hydrocarbon and ester plasticizer in uethane elastomer for seaing puroposes

机译：烃和酯类增塑剂在聚氨酯弹性体中的作用，用于销售目的

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

A comparison of the effects of two types of modifiers, anthracene oil (hy-drocarbon) and dioctyl phthalate (ester), on physical and mechanical properties of urethane elastomers prepared from polyetherols (propylene oxide derivatives of various functionalities and MW) and TDI was performed. The aim of the study was to assess their suitability as binders in permanently elastic urethane sealants for use in con-struction. The urethane elastomers under investigation were synthesized by a prepoly-mer method. The modifiers, added to the reactive mixture before curing, were found to be fully compatible with the urethane elastomers and did not interfere with the curing process. The usable range of application for both modifiers was found to be up to 40 phr. Over this range the modified urethane elastomers are viscoelastic liquids. The hydro-carbon modifier does enhance the hydrophobic properties of urethane elastomer, at a lower degree of crosslinking. It was found that modified urethane elastomers may be good binders for sealants, although their long-term sealing properties must be con-firmed under field conditions.
机译：比较了两种类型的改性剂，蒽油（氢碳氢化合物）和邻苯二甲酸二辛酯（酯）对由聚醚醇（各种功能和分子量的环氧丙烷衍生物）和TDI制备的聚氨酯弹性体的物理和机械性能的影响。 。这项研究的目的是评估它们在建筑中使用的永久弹性聚氨酯密封胶中作为粘合剂的适用性。通过预聚物方法合成了所研究的氨基甲酸酯弹性体。发现在固化之前添加到反应性混合物中的改性剂与氨基甲酸酯弹性体完全相容，并且不会干扰固化过程。发现两种改性剂的可用应用范围高达40 phr。在该范围内，改性的氨基甲酸酯弹性体是粘弹性液体。烃改性剂确实以较低的交联度增强了聚氨酯弹性体的疏水性。已经发现，改性的氨基甲酸酯弹性体可能是密封胶的良好粘合剂，尽管必须在现场条件下确认其长期密封性能。

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