超臨界流體製作聚乙烯塑膠發泡粒之研究

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Title:	超臨界流體製作聚乙烯塑膠發泡粒之研究 The Study of Forming Polyethylene Foam by Using Supercritical Fluid
Authors:	李貴琪佘岱螢游輝仁邱永和
Contributors:	紡工系
Keywords:	超臨界流體微細發泡聚乙烯 supercritical fluids microcellular polyethylene
Date:	2011-02
Issue Date:	2017-06-14 13:15:34 (UTC+8)
Abstract:	本研究以兩種不同聚乙烯塑膠粒，經超臨界微細發泡所製成之發泡粒進行比較，首先利用不同溫度及壓力條件下，測試其體積膨脹率，發現在90℃，壓力20MPa時，具有最佳之膨脹率。再利用不同洩壓速率條件，分別測試其發泡孔、外觀色澤等，發現當洩壓速率越快時，孔徑則越均勻，色澤之變化也越明顯，而膨脹率亦隨之增加。 In this study, we use the two different polyethylene pellets by the microcellular, to compare foam aperture and appearance color in different temperature and pressure. The results show LDPE's molecule structure is fragile than HDPE's, LDPE foam aperture is more large and irregular, and it is appearance of the color is uneven.
Relation:	華岡紡織期刊； 18卷1期 (2011 / 02 / 01) ， P48 - 54
Appears in Collections:	[Department of Textile Engineering ] Journal of the Hwa Gang Textile

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