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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/32282

    標題: Effect of a low-molecular-weight compatibilizer on the immiscible blends of cellulose acetate propionate and poly(butylene terephthalate)
    作者: Liang, Nai-Yun
    Don, Trong-Ming
    Huang, Chih-Yuan
    Lee, Chia-Fen
    Chiu, Wen-Yen
    貢獻者: Natl Taiwan Univ, Inst Polymer Sci & Engn
    Tamkang Univ, Dept Chem & Mat Engn
    Chia Nan Univ Pharm & Sci, Dept Cosmet Sci
    Natl Taiwan Univ, Dept Chem Engn
    Natl Taiwan Univ, Dept Mat Sci & Engn
    關鍵字: Cellulose acetate propionate (CAP)
    Poly(butylene terephthalate) (PBT)
    Partially miscible
    日期: 2018-03-06
    上傳時間: 2019-11-15 15:48:02 (UTC+8)
    出版者: SPRINGER
    摘要: Blends of poly(butylene terephthalate) (PBT) and cellulose acetate propionate (CAP) were found to be immiscible. In order to improve the interfacial strength and miscibility of the PBT/CAP blends, a low-molecular-weight poly(ethylene glycol) (PEG) was thus pre-mixed with the CAP to form the P-CAP mixture. It was then blended with the PBT up to 15 wt% using a twin-screw extruder to prepare the PBT/P-CAP blends, and subsequently processed into the films and fibers by compression-molding and melt-spinning, respectively. The thermal and dynamic mechanical analyses suggested that the PBT and CAP became partially miscible and the interfacial strength was thus improved in the PBT/ PCAP blends, owing to the addition of PEG. The PEG was not only miscible with the CAP but also with the PBT, and it served as a plasticizer as well as a compatibilizer. From the observation of the fractured surface of the PBT/P-CAP films, the PBT component was present as dispersed particles in the P-CAP matrix with size ranging from 1.4 to 3.0 mu m; yet it became nanofiber in the spun fibers. Successful fibers of the PBT/ P-CAP blends with an average diameter of 20 mu m could be spun, where the tensile strength and elongation at break were in the range of 0.6-0.7 g/denier and 12-16%, respectively. Finally, the ultra-fine PBT nanofibers with diameters in the range of 50-70 nm were observed after removing the P-CAP matrix with acetone from the fibers, owing to the formation of PBT nanofibers during spinning and orientation processes. This method thus could successfully produce nano-scale PBT fibers with fineness comparable with the nanofibers developed via electrospinning technology.
    link: http://dx.doi.org/10.1007/s10965-018-1487-5
    關聯: European Radiology, v.25, n.4, 88
    Appears in Collections:[化妝品應用與管理系(所)] 期刊論文

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