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作为热塑性复合材料基体的星状支化聚酰胺

Star-Branched Polyamides as the Matrix in Thermoplastic Composites.

作者信息

Núñez Carrero Karina C, Herrero Manuel, Asensio María, Guerrero Julia, Merino Juan Carlos, Pastor José María

机构信息

Foundation for Research and Development in Transport and Energy (CIDAUT), Parque Tecnológico de Boecillo, 47051 Valladolid, Spain.

Department of Condensed Matter Physics, Escuela de Ingenierías Industriales, University of Valladolid, Paseo del Cauce, 59, 47011 Valladolid, Spain.

出版信息

Polymers (Basel). 2022 Feb 26;14(5):942. doi: 10.3390/polym14050942.

DOI:10.3390/polym14050942
PMID:35267765
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8912622/
Abstract

The aim of this study is the preparation of star-shaped branched polyamides (sPA6) with low melt viscosity, but also with improved mechanical properties by reactive extrusion. This configuration has been obtained by grafting a tri-functional, three-armed molecule: 5-aminoisophthalic-acid, used as a linking agent (LA). The balance between the fluidity, polarity and mechanical properties of sPA6s is the reason why these materials have been investigated for the impregnation of fabrics in the manufacture of thermoplastic composites. For these impregnation processes, the low viscosity of the melt has allowed the processing parameters (temperature, pressure and time) to be reduced, and its new microstructure has allowed the mechanical properties of virgin thermoplastic resins to be maintained. A significant improvement in the ultrasonic welding processes of the composites was also found when an energy director based on these materials was applied at the interface. In this work, an exhaustive microstructural characterization of the obtained sPAs is presented and related to the final properties of the composites obtained by film stacking.

摘要

本研究的目的是通过反应挤出制备具有低熔体粘度且机械性能得到改善的星形支化聚酰胺（sPA6）。这种结构是通过接枝一种三官能团、三臂分子：5-氨基间苯二甲酸作为连接剂（LA）而获得的。sPA6的流动性、极性和机械性能之间的平衡是这些材料被研究用于热塑性复合材料制造中织物浸渍的原因。对于这些浸渍工艺，熔体的低粘度使得加工参数（温度、压力和时间）得以降低，并且其新的微观结构使得原始热塑性树脂的机械性能得以保持。当在界面处应用基于这些材料的能量导向器时，还发现复合材料的超声焊接工艺有显著改善。在这项工作中，对所获得的sPA进行了详尽的微观结构表征，并将其与通过薄膜堆叠获得的复合材料的最终性能相关联。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/035b0e943951/polymers-14-00942-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/55b7255d3365/polymers-14-00942-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/381b43f1b59d/polymers-14-00942-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/6058ea0bcb73/polymers-14-00942-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/abc8adab4819/polymers-14-00942-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/0f1e0fcc560c/polymers-14-00942-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/77c8d32a8075/polymers-14-00942-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/48710f2a4fae/polymers-14-00942-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/5cfb587158bb/polymers-14-00942-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/1a63c46913d9/polymers-14-00942-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/8e8bfee27d8b/polymers-14-00942-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/113ebe0f1e4c/polymers-14-00942-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/eef68d37cf6b/polymers-14-00942-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/035b0e943951/polymers-14-00942-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/55b7255d3365/polymers-14-00942-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/381b43f1b59d/polymers-14-00942-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/6058ea0bcb73/polymers-14-00942-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/abc8adab4819/polymers-14-00942-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/0f1e0fcc560c/polymers-14-00942-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/77c8d32a8075/polymers-14-00942-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/48710f2a4fae/polymers-14-00942-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/5cfb587158bb/polymers-14-00942-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/1a63c46913d9/polymers-14-00942-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/8e8bfee27d8b/polymers-14-00942-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/113ebe0f1e4c/polymers-14-00942-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/eef68d37cf6b/polymers-14-00942-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be2/8912622/035b0e943951/polymers-14-00942-g013.jpg

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