教師資料查詢 | 類別: 期刊論文 | 教師: 黃招財 CHAO-TSAI HUANG (瀏覽個人網頁)

標題:Study on the Viscoelasticity Properties of the Glass Mat Thermoplastics (GMT) in Compression Molding System.
學年107
學期2
出版(發表)日期2019/03/18
作品名稱Study on the Viscoelasticity Properties of the Glass Mat Thermoplastics (GMT) in Compression Molding System.
作品名稱(其他語言)
著者Chao-Tsai (CT) Huang; Ling-Jue Chen; Tse-Yu Chien; Shih-Po Sun; Chih-Wei Wang; Chih-Chung Hsu; David Hsu; Rong-Yeu Chang
單位
出版者
著錄名稱、卷期、頁數SPE Technical Papers 35, p.1-5
摘要Compression molding is one of the lightweight technologies able to provide efficient way to retain fiber length for better mechanical property comparing to injection molding. In compression molding development, materials such as glass fiber mat thermoplastics (GMT) are often applied. However, due to the complicated micro-structure of the reinforced material, and the interaction of fiber-resin matrix, it is still challenge to have uniform compressed GMT product. In this study, we have developed a method to measure the rheological properties of GMT material through a compression system. Specifically, we have utilized compression molding system to estimate the rheological parameters of GMT. Those rheological parameters are then integrated into CAE (Moldex3D) to evaluate the flow behavior under the compression operation. Results showed that the trend of the loading force is increased exponentially against displacement at various compression speeds. However, some significant differences between simulation and experiment are observed. Specifically, at the early compression stage, the volume of long fiber-resin matrix is expanded by 50% in real experiment. This causes the loading force difference at the beginning between simulation and experiment. On the other hand, at the middle to the end stage, due to the fiber-resin matrix separation, the more the resin left the matrix, the higher the resistance generated. This results in the jump up of the loading force in the real experiments comparing to the simulation prediction. This deviation can be validated through the measurement of fiber content through TGA.
關鍵字Viscoelasticity;Glass Mat Thermoplastics (GMT);Compression Molding;fiber-resin matrix separation
語言英文(美國)
ISSN
期刊性質國外
收錄於EI;
產學合作
通訊作者黃招財
審稿制度
國別美國
公開徵稿
出版型式,電子版
相關連結
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