...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polymers for advanced technologies >Effect of polysiloxane and silane-modified SiO_2 on a novel intumescent flame retardant polypropylene system
【24h】

Effect of polysiloxane and silane-modified SiO_2 on a novel intumescent flame retardant polypropylene system

机译：聚硅氧烷和硅烷改性的SiO_2对新型膨胀型阻燃聚丙烯体系的影响

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 effects of polysiloxane and silane-modified SiO_2 (M-SiO_2) on properties of intumescent flame retardant polypropylene (IFR-PP) have been studied. The results demonstrate that both polysiloxane and M-SiO_2 could effectively enhance the flame retardancy of the IFR-PP, despite only 20 wt% loading of IFRs. Remarkably, the polysiloxane can clearly improve the water resistance of IFR-PP. It can obtain UL-94 V-0 rating, and its LOI remains over 34% after the water treatment. The surface tension data, XPS data, and SEM sufficiently prove that the some of polysiloxane transfers to the IFR-PP surface during processing. The TGA data show that the polysiloxane more effectively enhances the thermal stability of the IFR-PP at high temperature and increases the char residue. The CONE results reveal that the polysiloxane can clearly change the decomposition behavior of PP and markedly reduce flammability parameters. The homogenous and compact intumescent char layers further confirm that polysiloxane is a very effective silicon-containing additive for the flame retardancy and water resistance of the IFR-PP.
机译：研究了聚硅氧烷和硅烷改性的SiO_2（M-SiO_2）对膨胀型阻燃聚丙烯（IFR-PP）性能的影响。结果表明，尽管仅加入20 wt％的IFR，但聚硅氧烷和M-SiO_2均可有效提高IFR-PP的阻燃性。值得注意的是，聚硅氧烷可以明显改善IFR-PP的耐水性。它可以达到UL-94 V-0等级，并且经过水处理后其LOI保持超过34％。表面张力数据，XPS数据和SEM足以证明加工过程中一些聚硅氧烷转移到IFR-PP表面。 TGA数据表明，聚硅氧烷在高温下更有效地增强了IFR-PP的热稳定性，并增加了炭渣。 CONE结果表明，聚硅氧烷可以明显改变PP的分解行为，并显着降低可燃性参数。均匀且致密的膨胀炭层进一步证实，聚硅氧烷对于IFR-PP的阻燃性和耐水性而言是非常有效的含硅添加剂。

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