Recycling extrusion of poly(ether-block-amide) thermoplastic elastomer (Pebax®): the influence of chemical and crystal change on mechanical properties,Polymer International

当前位置： X-MOL 学术 › Polym. Int. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Recycling extrusion of poly(ether-block-amide) thermoplastic elastomer (Pebax®): the influence of chemical and crystal change on mechanical properties
Polymer International ( IF 2.9 ) Pub Date : 2021-05-19 , DOI: 10.1002/pi.6258
Yuan Gui ₁ , Yucai Li ₂ , Xin Wu ₂ , Xinxing Feng ₃ , Guotao Huang ₁ , Jianping Deng ₁ , Cao Wang ₂ , Kai Pan ₁

Affiliation

In this work, two poly(ether-block-amide) thermoplastic elastomers (Pebax® 2533 and Pebax® 5533) were subjected to five extrusion cycles. We characterized the various performance changes of the two materials after injection molding, including chemical structure, crystalline properties and mechanical properties, and also analyzed the reasons for the observed changes. Attenuated total reflectance Fourier transform infrared spectroscopy shows that, after repeated extrusion, free hydroxyl groups and new oxygen-containing functional groups (carbonyl groups) were formed inside the materials. X-ray photoelectron spectroscopy shows that the oxygen content of the material increased significantly. TGA shows that the thermal stability of the material was slightly improved. The elastomer melt index also increased with extrusion cycles. By analyzing the crystalline properties (DSC, XRD) of the materials, we tentatively explain the different changes in the two poly(ether-block-amide) thermoplastic elastomers in terms of mechanical properties. © 2021 Society of Industrial Chemistry.

中文翻译：

聚（醚-嵌段-酰胺）热塑性弹性体 (Pebax®) 的回收挤出：化学和晶体变化对机械性能的影响

在这项工作中，两个聚（醚-嵌段-酰胺）热塑性弹性体（Pebax® 2533 和 Pebax® 5533）进行五次挤出循环。我们表征了注射成型后两种材料的各种性能变化，包括化学结构、结晶性能和机械性能，并分析了观察到变化的原因。衰减全反射傅里叶变换红外光谱表明，经过反复挤压，材料内部形成了游离羟基和新的含氧官能团（羰基）。X射线光电子能谱显示材料的氧含量显着增加。TGA表明材料的热稳定性略有提高。弹性体熔体指数也随着挤出循环而增加。通过分析结晶特性（DSC、嵌段酰胺）热塑性弹性体在机械性能方面。© 2021 工业化学学会。

更新日期：2021-05-19

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11