Study on the Crystallization, Miscibility, Morphology, Properties of Poly(lactic acid)/Poly(ε-caprolactone) Blends
學年 97
學期 1
出版（發表）日期 2009-01-01
作品名稱 Study on the Crystallization, Miscibility, Morphology, Properties of Poly(lactic acid)/Poly(ε-caprolactone) Blends
作品名稱（其他語言）
著者 Yeh, Jen-taut; Wu, Ching-ju; Tsou, Chi-hui; Chai, Wan-lan; Chow, Jing-dong; Huang, Chi-yuan; Chen, Kan-nan; Wu, Chin-san
單位 淡江大學化學學系
出版者 Philadelphia: Taylor & Francis Inc.
著錄名稱、卷期、頁數 Polymer-Plastics Technology and Engineering 48(6), pp.571-578
摘要 A series of blends of poly(lactic acid) (PLA) and poly(ε-caprolactone) (PCL) with different mass ratio were prepared by means of the melt blending method to study their crystallization, miscibility, morphology, and thermal and mechanical properties. The result of DSC tests showed that the melting temperatures of PLA and PCL shifted toward each other, and that the largest shift appeared at the PLA70PCL30 blend. This result reveals that the PLA70PCL30 blend gives the strongest interaction intensity among the blends. Combined the result of dynamic mechanical analysis and SEM morphologies, it was found that PLA and PCL form a partial miscible blend, in which an amount of amorphous PCL (amorphous PLA) is dissolved in the PLA-rich phase (PCL-rich phase), leading to a depression of the Tg. value. The polarized optical micrographs showed that PCL can serve as a nucleating agent to promote PLA crystallization in the PLA/PCL blend. Moreover, the PLA70PCL30 blend gave the largest growth rate of PLA spherulite. Finally, the mechanical property of PLA/PCL blends indicated that PLA can easily be tuned from rigid to ductile by the addition of PCL.
關鍵字 Blends; Crystallization; Miscibility; Poly(lactic acid); Poly(ε-caprolactone)
語言 en
ISSN 0360-2559
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者 Wu, Chin-san
審稿制度
國別 USA
公開徵稿
出版型式 紙本
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