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热塑性聚酰胺弹性体的扩链共混改性及发泡行为研究

Study on Chain Extension Blending Modification and Foaming Behavior of Thermoplastic Polyamide Elastomer.

作者信息

Zhao Yuyin, Zheng Jiaxin, Guo Pei, Wang Congxiao, Guo Menghao, Xin Chunling, He Yadong

机构信息

College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing100029, China.

Engineering Research Center for Polymer Processing Equipment, Ministry of Education, Beijing100029, China.

出版信息

ACS Omega. 2023 Mar 6;8(11):9832-9842. doi: 10.1021/acsomega.2c06285. eCollection 2023 Mar 21.

DOI:10.1021/acsomega.2c06285
PMID:36969475
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10034832/
Abstract

In order to improve the melt foaming properties of thermoplastic polyamide elastomers and reduce the shrinkage rate of foamed materials, acid anhydride chain extenders SMA (styrene maleic anhydride copolymer) are used in this paper to in situ reactive blending thermoplastic polyamide elastomers (TPAE) and polyamide 6 (PA6). The rheological and crystalline properties of the modified samples were characterized by a rotational rheometer and differential scanning calorimeter, and the melt batch foaming experiment with CO as the foaming agent was carried out. The results showed that the melting enthalpy of modified TPAE reduced with the addition of content of PA6, which implied that the crystallinity of the hard phase of the system was depressed. Nevertheless, the reduction of crystallinity was beneficial to improve the penetration of gas and reduce the effect of the pressure difference inside and outside the cell on foam shrinkage. Additionally, the microcross-linked structure formed with the increase of PA6 content enhanced the storage modulus of modified TPAE, which could accelerate recovery of strain. The foaming temperature zone and recovery performance of all modified TPAE samples were significantly improved. The overall shrinkage rate was reduced to less than 10%, the maximum expansion ratio could reach 11-13 times with a more complete and uniform cell structure, and the resilience was improved by about 12%.

摘要

为了改善热塑性聚酰胺弹性体的熔体发泡性能并降低泡沫材料的收缩率，本文采用酸酐类扩链剂SMA（苯乙烯-马来酸酐共聚物）对热塑性聚酰胺弹性体（TPAE）和聚酰胺6（PA6）进行原位反应共混。采用旋转流变仪和差示扫描量热仪对改性样品的流变性能和结晶性能进行了表征，并以CO作为发泡剂进行了熔体间歇发泡实验。结果表明，随着PA6含量的增加，改性TPAE的熔融焓降低，这意味着体系硬相的结晶度降低。然而，结晶度的降低有利于提高气体的渗透率，并降低泡孔内外压力差对泡沫收缩的影响。此外，随着PA6含量的增加形成的微交联结构提高了改性TPAE的储能模量，这可以加速应变恢复。所有改性TPAE样品的发泡温度区间和恢复性能均得到显著改善。整体收缩率降低至10%以下，最大膨胀倍率可达11-13倍，泡孔结构更加完整均匀，回弹性提高了约12%。

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本文引用的文献

1
Effects of temperature, packaging and electron beam irradiation processing conditions on the property behaviour of Poly (ether-block-amide) blends.温度、包装及电子束辐照加工条件对聚（醚嵌段酰胺）共混物性能行为的影响。
Mater Sci Eng C Mater Biol Appl. 2014 Jun 1;39:380-94. doi: 10.1016/j.msec.2014.03.021. Epub 2014 Mar 16.