電場印加状態の制御によるアクリル樹脂の付着特性制御手法の開発

抄録

In manufacturing processes of Long-Fiber-Thermoplastic Direct (LFT-D) for Carbon-Fiber-Reinforced Plastic (CFRP), thermoplastic resin is required to adhere to carbon fiber favorably during mixing process which mixes carbon fiber and thermoplastic resin. On the other hand, less adhesion of thermoplastic resin is required during eject process in stamping. Previous researches show that direct current electric field on metal reduces adhesion between melted acrylic resin and metal surface. On the other hand, it is not clarified if adhesion decreases to no bias level after electrical field imposing stops. If adhesion decreases after stopping electrical field imposing, new manufacturing method which increases adhesion during mixing process with electrical field and decreases adhesion during ejection may be developed. The purpose of this research is to clarify the effect of stopping electrical bias imposing on adhesion between metal surface and melted acrylic resin. In the result, adhesion decreases to 0.51 MPa which is same level of no bias condition, from 0.73 MPa which adhesion strength in DC -300V condition is.