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紫外线辐照表面处理以提高聚酰胺基碳纤维增强热塑性聚合物的粘结强度

Ultraviolet Irradiation Surface Treatment to Enhance the Bonding Strength of Polyamide-Based Carbon Fiber-Reinforced Thermoplastic Polymers.

作者信息

Hwang Mun Young, Yoon Soon Ho, Kim Minkook

机构信息

Korea Automotive Technology Institute (KATECH), Cheonan-si 31214, Republic of Korea.

Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonbuk 55324, Republic of Korea.

出版信息

Polymers (Basel). 2024 Oct 10;16(20):2864. doi: 10.3390/polym16202864.

DOI:10.3390/polym16202864
PMID:39458692
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11511410/
Abstract

Adhesive bonding is a suitable joining method to satisfy the increasing industrial demand for carbon fiber-reinforced polymers without the need for a machining process. However, thermoplastic-based carbon fiber-reinforced polymers have small adhesive strength with structural thermoset adhesives. In this study, an ultraviolet irradiation surface treatment was developed to improve the adhesive bonding strength for polyamide-based carbon fiber-reinforced polymer. The type of ultraviolet wavelength, irradiation distance and irradiation time were optimized. Surface treatment with simultaneous UV irradiation of 185 nm and 254 nm wavelength generated unbound N-H stretching that was capable of chemical bonding with epoxy adhesives through a photo-scission reaction of the amide bond of polyamide matrix. Therefore, ultraviolet irradiation treatment improved the wettability and functional groups of the polyamide-based carbon fiber-reinforced polymers for adhesive bonding. As a result, the adhesive strength of the polyamide-based carbon fiber-reinforced polymers was increased by more than 230%.

摘要

粘接是一种合适的连接方法，可满足工业界对碳纤维增强聚合物日益增长的需求，且无需加工工艺。然而，热塑性基碳纤维增强聚合物与结构热固性胶粘剂的粘合强度较小。在本研究中，开发了一种紫外线辐照表面处理方法，以提高聚酰胺基碳纤维增强聚合物的粘接强度。对紫外线波长类型、辐照距离和辐照时间进行了优化。同时进行185nm和254nm波长的紫外线辐照表面处理产生了未结合的N-H拉伸，其能够通过聚酰胺基体酰胺键的光解反应与环氧胶粘剂发生化学键合。因此，紫外线辐照处理改善了聚酰胺基碳纤维增强聚合物用于粘接的润湿性和官能团。结果，聚酰胺基碳纤维增强聚合物的粘合强度提高了230%以上。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/8f25c3a5f1cc/polymers-16-02864-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/8de45ad64b1a/polymers-16-02864-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/e175548adbc0/polymers-16-02864-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/f3f5207e8214/polymers-16-02864-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/ebdbc4e22f5d/polymers-16-02864-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/bed914ac2514/polymers-16-02864-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/8ca373850771/polymers-16-02864-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/d0a5e6b3ae21/polymers-16-02864-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/2b1935aaf58a/polymers-16-02864-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/f73986a3ed6b/polymers-16-02864-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/8f25c3a5f1cc/polymers-16-02864-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/8de45ad64b1a/polymers-16-02864-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/e175548adbc0/polymers-16-02864-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/f3f5207e8214/polymers-16-02864-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/ebdbc4e22f5d/polymers-16-02864-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/bed914ac2514/polymers-16-02864-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/8ca373850771/polymers-16-02864-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/d0a5e6b3ae21/polymers-16-02864-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/2b1935aaf58a/polymers-16-02864-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/f73986a3ed6b/polymers-16-02864-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb81/11511410/8f25c3a5f1cc/polymers-16-02864-g010.jpg

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本文引用的文献

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