Effect of vacuum–ultraviolet irradiation in a nitrogen gas atmosphere on the adhesive bonding of carbon-fiber-reinforced polyphenylene sulfide composites

S. Kawasaki, Y. Ishida, T. Ogasawara
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Abstract

ABSTRACT Recently, various physical surface treatment methods have been studied to improve the adhesive bonding strengths of fiber-reinforced thermoplastic resins. Excellent surface treatment methods in terms of treatment time, effective irradiation distance, and strength reliability are required. This study was carried out to evaluate the effect of vacuum–ultraviolet (VUV) irradiation on the bonding strength of a carbon-fiber-reinforced polyphenylene sulfide under a nitrogen atmosphere. Various surface treatment parameters, such as the treatment time, irradiation distance, atmosphere, and standing time after the surface treatment, were changed. The adhesive strength, evaluated through a compression shear test, was improved by the VUV irradiation treatment. Additionally, the joint surface fracture changed from an interface fracture to a cohesive fracture of the adhesive or adherend. Furthermore, the joint strength was improved even when the irradiation distance was increased. Furthermore, oxygen-containing functional groups were introduced at the sample surface upon the VUV treatment, according to X-ray photoelectron spectra.
氮气气氛下真空紫外辐照对碳纤维增强聚苯硫醚复合材料粘接的影响
近年来,人们研究了各种物理表面处理方法来提高纤维增强热塑性树脂的粘接强度。需要在处理时间、有效辐照距离和强度可靠性方面有优秀的表面处理方法。研究了真空紫外(VUV)辐照对氮气氛下碳纤维增强聚苯硫醚结合强度的影响。改变处理时间、辐照距离、气氛、表面处理后静置时间等表面处理参数。通过压缩剪切试验评估,VUV辐照处理提高了粘接强度。结合面断裂由界面断裂转变为粘接剂或粘附物的内聚断裂。随着辐照距离的增加,接头强度也有所提高。此外,根据x射线光电子能谱,在VUV处理后,样品表面引入了含氧官能团。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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