การทดลองเพื่อศึกษาผลของความเข้มข้นของสารกัดผิว เวลา และอุณหภูมิของกระบวนการกัดผิว ต่อการยึดติดแน่นของชั้นเคลือบโลหะบนชิ้นงานพลาสติกเอบีเอส / พงษ์ศักดิ์ ฉัตรฉวีวัฒนา = Experimental study of the effect of concentration of etching solution, time and temperature of etching process on the adhesion of metallic film on ABS plastic substrate / Pongsak Chatchaweewattana
The experimentals were conducted to study the effects of concentration of chromic acid in etching solution at 200, 420 and 600 g/l (chromic acid and sulphuric acid in solution with total concentration 800 g/l), time of etching process at 3, 6, 9 and 12 min. and temperature of etching process at 55, 65 and 75 ℃ on adhesion strength between copper metallic film and ABS plastic substrate. Adhesion strength was tested following JISH 8630 peel test method. Sample fixture was designed and built according to the standard. Surface topography of etched ABS plastics were studied by scanning electron microscope. The results showed that the concentration of etching solution, etching temperature and etching time have the combined effects on the surface topography of the etched ABS plastics. These in turn yielded different adhesion strength between copper metallic film and ABS plastic substrate. Overall, it was found that there was no clear trend on the effect of concentration of etching solution on the adhesion strength. However, when the etching time was increased, the adhesion strength had a tendency to increase. But it dropped later once the etching time was increased beyond certain value. When the etching temperature was increased, the adhesion strength had a tendency to increase.