We have developed a new fiber spreading technology (FUKUI method) to obtain the continuously wide and thin reinforcing fiber-tow.
　We have developed the processing technology for producing at high speed the thin prepreg sheet below 0.05mm in thickness using a thermosetting resin or a thermoplastic resin.
　The mechanical tests were conducted on the thin-ply laminates which were produced by stacking these prepreg sheets. As a result, we have found that there are some characteristic thin-ply effects when thinning the layer thickness that make up the laminate composite.

References
・ S. Shin, R. Y. Kim, K. Kawabe, Stephen W. Tsai, “Experimental studies of thin-ply laminated composites”, Composite Science and Technology 67, (2007), 996-1008
・ K. Kawabe, H. Sasayama, and S. Tomoda, “New Spread Technology for Carbon Fiber Tow and Its Application to Composite Materials”, SAMPE Journal, 45, 2, (2009), 6-17
・ 笹山秀樹, 川邊和正, 友田茂, 大澤勇, 影山和郎、小形信男, “多方向強化複合材料積層板の初期破損に関する層厚さの影響”, 日本複合材料学会誌, 第30巻, 第4号, (2004) 142-148
・ 川邊和正, 笹山秀樹, 影山和郎, 小形信男, “多方向強化複合材料積層板の圧縮特性に関する層厚さの影響”, 日本複合材料学会誌, 34, 5, (2008), 173-181
・ 川邊和正, 笹山秀樹, 近藤慶一, “空気開繊技術による新しい複合材料”, 繊維機械学会誌, 66, 4, (2013), 243-248

Questionnaire 2014/Shinshu University Faculty of Textile Science and Technology Fii