...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polymers for advanced technologies >Influence of compatibilizer and multifunctional additive loadings on flame retardation, plasticization, and impact modification of polylactide and poly(butylene adipate-co-terephthalate) biodegradable blends
【24h】

Influence of compatibilizer and multifunctional additive loadings on flame retardation, plasticization, and impact modification of polylactide and poly(butylene adipate-co-terephthalate) biodegradable blends

机译：相容剂和多功能添加剂载荷对搅拌，塑化和丁二酸酯 - 己二酸丁二醇酯的影响的阻燃，增塑和冲击改性的影响

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 poor compatibility and flame retardation of polylactide (PLA) and poly(butylene adipate-co-terephthalate) (PBAT) blends seriously limit their applications. This study focused on the mechanical properties and flame retardancy of a PLA/PBAT blend under the influence of different levels of compatibilizer and multifunctional additives (MFA). PLA and PBAT were successfully compatibilized via reactive blending in a twin-screw extruder. The flame retardation, flexibility, and impact toughness of the compatibilized blend were improved by the presence of tricresyl phosphate (TCP) and triethyl citrate (TEC). Separately and in combination, the two additives played crucial roles in flame retardant effectiveness, plasticization, and impact modification. The compatibilized blend displayed a UL-94 V-0 rating and exhibited a high limiting oxygen index (LOI). A slight reduction in thermal stability was exhibited when 20 phr TCP was incorporated into the blend. During combustion, an integrated char layer formed on the compatibilized blend surface and retarded flammability. The combination of TCP and TEC not only significantly improved dripping behavior and flame-retardant properties of the compatibilized blend but also cooperatively enhanced the elongation at break and impact strength without impacting tensile strength, Young's modulus, LOI value, and thermal stability. The failure behavior of the blend changed from brittle to ductile, as evidenced by SEM, which revealed elongated fibrils after tension. These characteristics were associated with the presence of the MFAs and the improved interfacial adhesion between PLA and PBAT. As a result, flame retardation, flexibility, and impact resistance were enhanced. These improvements permit the wider application of PLA, especially in the electronic and automotive fields. Highlights
机译：聚丙环（PLA）和聚（丁烯己二酸丁二醇酯）（PBAT）共混物的差的相容性和阻燃性差异差，严重限制了它们的应用。本研究重点是PLA / PBAT混合物在不同级别的增容剂和多官能添加剂（MFA）的影响下的机械性能和阻燃性。通过双螺杆挤出机中的反应性共混成功地将PLA和PBAT成功化。通过存在三苯二甲酸三苯基（TCP）和柠檬酸三乙酯（TEC），改善了相容化混合物的阻燃，柔韧性和冲击韧性。单独和组合，两种添加剂在阻燃效果，塑化和冲击改性中起到了至关重要的作用。兼容的混合物显示UL-94 V-0等级，并显示出高限制的氧指数（LOI）。当20phr TCP掺入混合物中时，表现出热稳定性的轻微降低。在燃烧期间，在相容化的共混物表面上形成的集成炭层和延迟的易燃性。 TCP和TEC的组合不仅显着改善了增容的共混物的滴水行为和阻燃性能，而且还合作地增强了断裂和冲击强度的伸长率，而不会影响拉伸强度，杨氏模量，LOI值和热稳定性。混合物的故障行为从脆性变为延展性，如SEM所证明的，张力后透露了细长的原纤维。这些特性与MFA的存在和PLA和PBAT之间的改善的界面粘附相关。结果，增强了阻燃，柔韧性和抗冲击性。这些改进允许更广泛地应用PLA，特别是在电子和汽车领域。强调

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