Abstract
It is important to control adhesion between thermoplastics resin and metal in molding thermoplastics resin. There are some methods controlling adhesion, as usage, use of a release agent. In this study, we focused on texture on metal surface in order to control adhesion. It was reported that adhesion decreased on metal surface texture which consisted of microscale or nanoscale pores. Metal surface texture reduced adhesion with decreasing ratio of contact area between thermoplastics resin and metal surface. It is important that melted thermoplastics resin does not intrude to texture. The previous researches have not revealed the conditions, in which thermoplastics resin does not intrude to texture. We investigated influence of each parameter on intrusion of thermoplastics resin to texture. Investigated parameters are pressing time, trapped air in micropores, and diameter of micropores. And we got the result that the smaller diameter of the micropore is, the smaller intrusion depth is.
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