Flow Marks of Polypropylene (PP) Composites in the Injection Molding

• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: Hyeon-Taek Jeong Yong-Ryeol Kim
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제32권 제2호, 320~325쪽, 전체 6쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2015.06.30

영문 초록

Flow mark is a sort of surface defect on the composite that can arise during the filling stage of the injection molding process. The purpose of this study is to clarify a mechanism of the flow mark which appears on the surface of injection molded Polypropylene (PP) through the characterization of the surface structure. The materials used in this report are PP/rubber and PP/talc compounding, which are widely used in automobile part. The flow mark shows two different constitutions, such as a luster part and a cloud part on the surface of the injection molded PP. We have investigated the surface structure of PP/rubber and PP/talc composites by using scanning electron microscope (SEM), energy dispersive x-ray spectroscopy (EDAX) and optical microscopy (OM). As a result, the cloud part contains higher contents of the rubber and talc compare to the luster part.

목차

1. Introduction

2. Experimental

3. Result and discussion

4. Conclusion

References

키워드

Flow mark injection molding Polypropylene (PP) cloud part luster part.