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http://dx.doi.org/10.9713/kcer.2022.60.2.295

Development of Paint-free Metallic Plastic Material for Automotive Parts  

Choi, Min Jin (Hyundai Motor Group, Exterior & Powertrain System Plastic Materials Development Team)
Cho, Jeong-Min (Hyundai Motor Group, Exterior & Powertrain System Plastic Materials Development Team)
Choi, Young Ho (Hyundai Motor Group, Exterior & Powertrain System Plastic Materials Development Team)
Choi, Min Ho (Hyundai Motor Group, Exterior & Powertrain System Plastic Materials Development Team)
Lee, Choon Soo (Hyundai Motor Group, Exterior & Powertrain System Plastic Materials Development Team)
Sung, Han Ki (Hyundai Motor Group, Plastic Mold Manufacturing Engineering Department Team)
Lee, Kyoung Sil (Hyundai Motor Group, Kia Design Engineering Team)
Park, Ki Hun (Daewon Chemical Company)
Hwang, Se Jong (Daewon Chemical Company)
Publication Information
Korean Chemical Engineering Research / v.60, no.2, 2022 , pp. 295-299 More about this Journal
Abstract
In this paper, paint-free metallic plastic material, polypropylene (PP) and acrylonitrile styrene acrylate (ASA) materials were investigated on the applications for bumper skid plate and outside mirror housing parts. In order to maximize metallic effect, type, size and content of aluminum pigment were optimized based on flop index. Hybrid aluminum pigments with different aspect ratios were used to conceal weld lines. By controlling the fluidity of the material, the flow mark problem, generated on the surface of the part, was resolved. We also investigated the surface defects of flow and weld lines by using the developed modeling and simulation.
Keywords
Paint-free metallic plastic material; Aluminum pigment; Skid plate; Outside mirror housing; Weld line; Flow mark;
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