...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Science >Halloysite nanotubes loaded with liquid organophosphate for enhanced flame retardancy and mechanical properties of polyamide 6
【24h】

Halloysite nanotubes loaded with liquid organophosphate for enhanced flame retardancy and mechanical properties of polyamide 6

机译：Halloysite纳米管，装有液体有机磷酸盐，用于增强聚酰胺的阻燃性和机械性能6

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

Aiming at achieving polyamide 6 with enhanced flame retardancy and maintained mechanical properties, halloysite nanotubes (HNT) and bisphenol-A bis(diphenyl phosphate) (BDP) flame retardant were introduced to prepare PA6/HNT/BDP flame retardant nanocomposites. Efficient loading of BDP inside the HNT lumen was demonstrated. Qualitative and quantitative characterization of BDP-loaded HNT revealed that BDP was mainly encapsulated inside the central lumen of halloysite and also located in the small pores on the outer surface of HNT. The use of only BDP (up to 4 wt%) or HNT (up to 10 wt%) cannot improve the UL-94 of the PA6 to reach V-0 classification. By combining use of HNT and BDP, the nanocomposites achieved V-0 rating with significant suppression in peak heat release rate and total heat release from cone calorimeter. The negative effect of BDP on strength and rigidity of PA6 composites was obviously minimized by encapsulating some portions of BDP in the nanotube. As a result, the tensile strength and thermal stability of the PA6 retained without loss of stiffness. During burning process, the BDP in the bulk polymer performed its function in the early period of the process, whereas the BDP inside the nanotube possessed a prolonged release for flame retardation at the later stage of combustion.
机译：旨在实现具有增强的阻燃性和维持力学性能的聚酰胺6，引入了霍利石纳米管（HNT）和双酚-A（二苯基）（BDP）阻燃剂，制备PA6 / HNT / BDP阻燃纳米复合材料。证明了HNT腔内的BDP的高效负载。加载BDP的HNT的定性和定量表征显示，BDP主要封装在霍金石的中央腔内，也位于HNT外表面上的小孔隙中。仅使用BDP（最多4wt％）或HNT（最多10wt％）不能改善PA6的UL-94，以达到V-0分类。通过组合HNT和BDP的使用，纳米复合材料达到V-0等级，峰值热释放速率显着抑制和来自锥形量热仪的总热释放。通过在纳米管中封装一些BDP的部分，明显最小化了BDP对PA6复合材料强度和刚性的负面影响。结果，保留了PA6的拉伸强度和热稳定性而不会损失刚度。在燃烧过程中，散装聚合物中的BDP在该方法的早期期间进行其功能，而纳米管内的BDP在燃烧后期的后期具有阻燃延长的延长释放。

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