• 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 >Foamed polyurethane plastics of reduced flammability
【24h】

Foamed polyurethane plastics of reduced flammability

机译：泡沫聚氨酯塑料降低可燃性

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 study, modified foamed polyurethane materials were obtained with the use of new polyols. The polyols were synthesized by the reaction of N,N-bis(2-hydroxyethyl)oxamide esterified with boric acid and various excesses of ethylene carbonate. Thus, poly(ethylene glycol)s with incorporated oxamide and borate groups containing different amounts of boron and nitrogen were obtained. On the basis of these new polyols, rigid polyurethane foams were produced. They contained 0.8-1.2 wt % boron and 7.9-8.5 wt % nitrogen. The resulting foams showed reduced flammability, as determined on the basis of the measurements of the oxygen index and horizontal and vertical flammability tests. The foams also exhibited improved thermal stabilities and mechanical strengths and good dimensional stabilities. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45748.
机译：在该研究中，通过使用新的多元醇获得改性的发泡聚氨酯材料。 通过用硼酸和各种过量的碳酸亚乙酯酯化的N，N-BIS（2-羟乙基）氧酰胺的反应合成多元醇。 因此，得到了具有掺入含有不同量硼和氮的氧化氧酰胺和硼酸硼基团的聚（乙二醇）S。 在这些新多元醇的基础上，制备刚性聚氨酯泡沫。 它们含有0.8-1.2wt％硼和7.9-8.5wt％氮。 所得泡沫显示可燃性降低，如氧指数的测量和水平和垂直易燃性测试所确定的。 泡沫还表现出改善的热稳定性和机械强度和良好的尺寸稳定性。 （c）2017 Wiley期刊，Inc.J.Phill。 聚合物。 SCI。 2018,135,45748。

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