Surface and composite interface of carbon fiber modified by grafting of diethanolamine
The γ-ray co-irradiation method was employed to study the effect of diethanolamine modification on the surface of carbon fiber (CF) and the interfacial properties of CF/epoxy composites. Compared with the original carbon fiber, the surface of modified fibers became rougher. The amount of oxygen-containing functional groups was increased and the nitrogen element was detected after irradiation grafting. The interlaminar shear strength (ILSS) of composites reinforced by carbon fibers irradiated in diethanolamine solution was increased and then decreased as the irradiation dose increased. The ILSS of CF/epoxy composites was enhanced by 16.1％ at 200kGy dose, compared with that of untreated one. The γ-ray irradiation grafting is expected to be a promising method for the industrialized modification of carbon fibers.
Carbon fibers Composites Interface adhesion Surface γ-ray irradiation
Lei Chen Zhiwei Xu Jialu Li Xiaoqing Wu Li Chen
Key Laboratory of Advanced Braided Composites, Ministry of Education, Tianjin Polytechnic University, Tianjin 300160, China
国际会议
青岛
英文
497-500
2009-10-09（万方平台首次上网日期，不代表论文的发表时间）