• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Polymers and the Environment >Water Absorption Kinetics and Hygrothermal Aging of Poly(lactic acid) Containing Halloysite Nanoclay and Maleated Rubber
【24h】

Water Absorption Kinetics and Hygrothermal Aging of Poly(lactic acid) Containing Halloysite Nanoclay and Maleated Rubber

机译：含埃洛石纳米粘土和马来酸化橡胶的聚乳酸的吸水动力学和湿热老化

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

Poly(lactic acid)/halloysite nanoclay composites (PLA/HNC) containing maleic anhydride grafted styrene-ethylene/butylene-styrene (SEBS-g-MAH) were produced using melt compounding followed by compression molding. The effects of hygrothermal aging on the thermal properties and functional groups changes of the HNC reinforced PLA (with and without SEBS-g-MAH) at three different temperatures (i. e., 30, 40 and 50 degrees C) were analyzed using differential scanning calorimetry and Fourier transform infrared spectroscopy techniques. The diffusion coefficient (D) of PLA was decreased by the incorporation of HNC and SEBS-g-MAH. The activation energy of water diffusion (E-a) of PLA/HNC/SEBS-g-MAH nanocomposites was higher than that of pure PLA. The glass transition temperature (T-g), cold-crystallization temperature (T-cc) and melting temperature (T-m) of the PLA sample were shifted to lower temperature and the effect was more pronounced at 50 degrees C. The carbonyl index values of all PLA samples increased after immersed in 40 and 50 degrees C, which is due to the formation of higher amount of carboxyl groups during the hydrolysis process.
机译：使用熔融混合然后压缩成型来制备包含顺丁烯二酸酐接枝的苯乙烯-乙烯/丁烯-苯乙烯（SEBS-g-MAH）的聚乳酸/卤化物纳米粘土复合材料（PLA / HNC）。使用差示扫描量热法分析了湿热老化对HNC增强PLA（有和没有SEBS-g-MAH）在三种不同温度（即30、40和50摄氏度）下的热性能和官能团变化的影响。傅立叶变换红外光谱技术。通过加入HNC和SEBS-g-MAH可以降低PLA的扩散系数（D）。 PLA / HNC / SEBS-g-MAH纳米复合材料的水扩散（E-a）活化能高于纯PLA。将PLA样品的玻璃化转变温度（Tg），冷结晶温度（T-cc）和熔融温度（Tm）移至较低温度，并且在50摄氏度时效果更为明显。所有PLA的羰基指数值样品浸入40和50摄氏度后会增加，这是由于在水解过程中形成了大量的羧基。

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