FRP의 사출성형에 있어서 기계적 특성과 섬유함유물 분포에 관한 연구

Abstract

This study was performed for the assessment of various phenomenons that occur in cases of injection molding of long fiber thermoplastic composites and in the dimension of establishing systematic research of such occurrences and the main results gained through this experiment are organized as follows. 1. It was shown that mechanical properties within long fiber thermoplastic composites that had gone through injection molding were dominantly affected more by material factors such as the fiber content ratio within the composite rather than by molding factors. 2. Fiber content ratio increases up to 30wt% but when it exceeds 50wt%, it shows a decline. 3. The affect of fiber content on the distribution of fiber content ratio is that as content increased, distribution became equal in all areas excluding the flow front. 4. As opposite lengths increase, the distribution of fiber content ratio increases and as fiber content increases, the affect on injection molding conditions becomes small.