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

被引：3

作者：

Hwang, Mun Young ^{[1
]}

Yoon, Soon Ho ^{[2
]}

Kim, Minkook ^{[2
]}

机构：

[1] Korea Automot Technol Inst KATECH, Cheonan Si 31214, South Korea

[2] Korea Inst Sci & Technol KIST, Inst Adv Composite Mat, Jeonbuk 55324, South Korea

来源：

POLYMERS | 2024年 / 16卷 / 20期

关键词：

surface treatments; adhesion by chemical bonding; thermoplastic composite; UV irradiation; SINGLE LAP JOINTS; MECHANICAL-PROPERTIES; UV; COMPOSITE; OZONE; EPOXY; POLYPROPYLENE; RESIN;

D O I：

10.3390/polym16202864

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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%.

引用

页数：15

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