教師資料查詢 | 類別: 期刊論文 | 教師: 林達鎔 LIN, DAR-JONG (瀏覽個人網頁)

標題:Absorption and foaming of plastics using carbon dioxide
學年102
學期2
出版(發表)日期2014/07/01
作品名稱Absorption and foaming of plastics using carbon dioxide
作品名稱(其他語言)
著者Lin, Gwo-Geng; Lin, Dar-Jong; Wang, Li-Jung; Kuo, Ting-Wei
單位淡江大學化學工程與材料工程學系
出版者Dordrecht: Springer Netherlands
著錄名稱、卷期、頁數Research on Chemical Intermediates 40(6), pp.2259-2269
摘要In this study, carbon dioxide was used as a foaming agent for common
plastics, such as acrylonitrile–butadiene–styrene (ABS) polymer, polystyrene (PS),
polypropylene (PP), high-density polyethylene (HDPE), and high impact polystyrene
(HIPS). Carbon dioxide was first absorbed by the sample plastics placed within
a pressure vessel at various pressure levels and absorption time intervals. The
Henry’s constant of the absorbed carbon dioxide in the plastics was determined. The
diffusion coefficient of carbon dioxide in polymer was also identified by curve-
fitting with the relationship between the absorbed amount and time. The results
showed that ABS, PS, and HIPS absorbed more gas than did PP and HDPE, because
PP and HDPE exhibit higher crystallinity. Generally, a polymer can take up saturation
absorption of gas under higher pressure. After absorption, the foaming process
occurred at various temperatures and time intervals. The cell structure, density,
and size of the plastic foams were then investigated using scanning electron
microscopy. A longer foaming period and higher temperature increase the size of
the cell and decrease the cell density (the number of bubbles per unit volume). A
dense skin layer without bubbles appeared directly adjacent to the surface of the
foamed plastics. Its thickness decreased if the foaming process took place at higher
temperatures.
關鍵字Foamed plastics;Henry constant;Diffusion coefficient;Carbon dioxide;Absorption
語言英文
ISSN1568-5675;0922-6168
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者Lin, Gwo-Geng
審稿制度
國別荷蘭
公開徵稿
出版型式,電子版,紙本
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