教師資料查詢 | 類別: 期刊論文 | 教師: 林國賡 Lin, Gwo-geng (瀏覽個人網頁)

標題:Experimentation and modeling for the apparent elongation viscosity of polymer melts with the White-Metzner model
學年103
學期1
出版(發表)日期2014/09/30
作品名稱Experimentation and modeling for the apparent elongation viscosity of polymer melts with the White-Metzner model
作品名稱(其他語言)
著者Gwo-Geng Lin; Jin-Ton Chang; Ting-Wei Kuo
單位化學工程與材料工程學系暨研究所
出版者美國Wiley
著錄名稱、卷期、頁數Polymers for Advanced Technologies 25(12), pp.1565–1571
摘要The measurement of the apparent elongation viscosity ( ) of several polyolefin melts was conducted in this study by using the isothermal fiber-spinning method. The White-Metzner (W-M) model was used to analyze the spinning flow of the polymer melts and, thus, the elongation viscosity was predicted at elongation strain rates ranging from 0 to approximately 5 s-1. The values of the model parameters required in the W-M model were obtained by curve-fitting the experimental data obtained from the shear measurements. The elongation viscosity predicted using the W-M model was in good agreement with the experimental results of fiber spinning. In addition, could also be estimated directly from the measured shear viscosity ( ) with a formulation using the W-M model; the subsequently obtained elongation viscosity and Trouton ratio ( ) were reasonable within a wide range of strain rates. Based on the experimental and theoretical results, the polyolefin with a high molecular weight was observed to have high elongation viscosity, and the polymer with a broad molecular weight distribution also possessed high . The TR value of the commercial polypropylene (PP-1040) began to increase from 3 at a deformation rate of 0.1 s-1 and grew up asymptotically to 10, whereas the TR of high-density polyethylene (HDPE-606) remained at 3 within the entire range of strain rates.
關鍵字
語言英文(美國)
ISSN
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者林國賡
審稿制度
國別美國
公開徵稿
出版型式,電子版,紙本
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