教師資料查詢 | 類別: 期刊論文 | 教師: 陳幹男 CHEN KAN-NAN (瀏覽個人網頁)

標題:Ultradrawing properties of ultrahigh- molecular-weight polyethylene/carbon nanotube fibers prepared at various formation temperatures
學年99
學期1
出版(發表)日期2011/01/01
作品名稱Ultradrawing properties of ultrahigh- molecular-weight polyethylene/carbon nanotube fibers prepared at various formation temperatures
作品名稱(其他語言)
著者Yeh, Jen-taut; Lai, Yu-ching; Hai, Liu ; Shu, Yao-chi ; Huang Chi-yuan; Huang Kuo-shien ; Chen Kan-nan
單位淡江大學化學學系
出版者Chichester: John Wiley & Sons Ltd.
著錄名稱、卷期、頁數Polymer international 60(1), pp.59-68
摘要The influence of formation temperature on the ultradrawing properties of ultrahigh-molecular-weight polyethylene/carbon nanotube (UHMWPE/CNT) fiber specimens is investigated. Gel solutions of UHMWPE/CNT with various CNT contents were gel-spun at the optimum concentration and temperature but were cooled at varying formation temperatures in order to improve the ultradrawing and tensile properties of the UHMWPE/CNT composite fibers. The achievable draw ratio (Dra) values of UHMWPE/CNT as-prepared fibers reach a maximum when they are prepared with the optimum CNT content and formation temperature. The Dra value of UHMWPE/CNT as-prepared fibers produced using the optimum CNT content and formation temperature is about 33% higher than that of UHMWPE as-prepared fibers produced using the optimum concentration and formation temperature. The percentage crystallinity (Wc) and melting temperature (Tm) of UHMWPE/CNT as-prepared fiber specimens increase significantly as the formation temperature increases. In contrast, Wc increases but Tm decreases significantly as the CNT content increases. Dynamic mechanical analysis of UHMWPE and UHMWPE/CNT fiber specimens exhibits particularly high α-transition and low β-transition, wherein the peak temperatures of α-transition and β-transition increase dramatically as the formation temperature increases and/or CNT content decreases. In order to understand these interesting drawing, thermal and dynamic mechanical properties of the UHMWPE and UHMWPE/CNT as-prepared fiber specimens, birefringence, morphological and tensile studies of as-prepared and drawn fibers were carried out. Possible mechanisms accounting for these interesting properties are proposed.
關鍵字ultrahigh-molecular-weight polyethylene;carbon nanotubes;formation temperatures
語言英文
ISSN0959-8103
期刊性質國外
收錄於SCI
產學合作
通訊作者Yeh, Jen-taut
審稿制度
國別英國
公開徵稿
出版型式紙本
相關連結
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