金属同士または金属とCFRPを高度に接着する技術「NAT（nano adhesion technoIogy）」

摘要

筆者らは2000年にNMT（Nano Molding Technology）rnという射出接合技術を発明した．これは，射出成形金型rnに特定の表面処理をしたアルミ合金をインサートし，PBTrnやPPS系樹脂を射出して樹脂成形品とアルミ合金片が接rn合一体化するというもの．%When metal alloys, that have special surface structure suggested in NAT-theory, can be bonded together using normal epoxy-adhesive. As a consequence, it can obtain twice or triple strength compare to traditional bonding processes. We already discovered several immersing processes for each metal alloys (Al, Mg, Cu, Ti, SUS, normal steel, …)to create such surface structure. While CFRP is made of carbon-fiber and epoxy-resin, so metal alloys that was treated NAT-treatment can be bonded strongly with CFRP with epoxy-adhesive NAT can obtain the shear strength between metal & metal 60-70 MPa, and that between metal & CFRP 40 -45 MPa.