Investigation on the Main Driving Force to Cause the Variation of the Core Material Penetration Behavior in Different Materials Arranged Co-injection Moulding
學年 107
學期 1
發表日期 2018-09-19
作品名稱 Investigation on the Main Driving Force to Cause the Variation of the Core Material Penetration Behavior in Different Materials Arranged Co-injection Moulding
作品名稱（其他語言）
著者 Chao-Tsai (CT) Huang; Wei-Jie Tzeng; Cheng-Huang Chen; Gwo-Geng Lin; Chih-Chung Hsu; Rong-Yeu Chang; Shi-Chang Tseng
作品所屬單位
出版者
會議名稱 8th bi-annual International Conference on Polymers and Moulds Innovations (PMI2018)
會議地點 Guimarães, 葡萄牙
摘要 Co-injection moulding is widely used in our daily life for manufacturing soft-feel skin/hard core, virgin skin/recycled core, and many other arranged products. However, there are still too many combinations of designs and parameters to cause that the interface between skin and core materials is not easy to be well controlled. In this study, we have applied three different material combination, say PS/PS, PS/PP, and PS/ABS. For each combination, it can be arranged as low viscosity-to-high viscosity (Low/High) or high vis-cosity-to-low viscosity (High/Low) structure. Results showed that at PS/PS system with a unique skin-to-core ratio and a fixed flow rate, general operation parameters have no significant effect on the change of the inter-face between skin and core. As in PS/PS combination with Low/High structure, it generates longer and nar-rower locus. On the other hand, as in High/Low structure, it generates shorter and wider locus. Moreover, as considered the different material combination, PS/PP and PS/ABS with Low/High structure, the core penetra-tion trend of the longer and narrower locus is similar as that of PS/PS system with the same structure. Howev-er, the core penetration distance is influenced significantly by the materials. Furthermore, to get more preci-sion prediction on the core penetration distance, it is investigated through the interaction among various material properties and time domain. Results showed that in Low/High structure, the different core penetration distance behavior is proportional to the dynamic change of the viscosity as time period proceeded. Finally, some experimental studies are also performed to verify the numerical predictions. In the general core penetration measurement, the numerical prediction is in a good agreement with the experimental data in trend.
關鍵字 co-injection molding;core penetration;flow imbalance
語言 en
收錄於
會議性質 國際
校內研討會地點 無
研討會時間 20180919~20180921
通訊作者
國別 PRT
公開徵稿
出版型式
出處 PMI2018 Conference Proceedings
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/115849 )