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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/87922

    Title: Preparation and properties of PLAPTT composites
    Other Titles: PLA/PTT複合材料之製備及性質測定
    Authors: 馬瑞克;Sipos, Marek
    Contributors: 淡江大學化學工程與材料工程學系碩士班
    林國賡;Lin, Gwo-Geng
    Keywords: 聚乳酸;聚對苯二甲酸丙二醇酯;mPOE;cellulose;PLA;PTT;cellulose;Cloisite 30B;tensile modulus;composite
    Date: 2012
    Issue Date: 2013-04-13 11:52:24 (UTC+8)
    Abstract: 本研究從事三成分高分子複材(PLA/PTT/filler)之開發,以及其各種機
    烯 - 辛烯)(mPOE),天然的醋酸纖維素以及納米黏土Cloisite 30B。
    SEM顯示PLA/PTT/mPOE具有三相的微結構。 當基材PLA/PTT添加醋
    加極少量卻有良好的機械性質。但是,Cloisite 30B 的添加量如高達
    Ternary blends with a matrix of poly(lactic acid) (PLA) and
    poly(trimethylene terephthalate) (PTT) were studied. The third component added was maleic anhydride grafted poly(ethylene octene) (mPOE), because grafted copolymers are often used as compatibilizers in immiscible matrices. Another filler was cellulose acetate, as a natural filler and Cloisite 30B as a nanoclay. Firstly matrix with various amounts of PTT was investigated. DSC and SEM results confirms immiscibility by showing two different glass
    transition temperatures (Tg) and two distinguishable phases.
    Mechanical properties of the mixtures are between the values for pure PLA and pure PTT. Addition of mPOE increases Izod impact strength, as it is rubbery component. On the other hand, mPOE increases crystallinity in PLA phase and higher amount of mPOE lowers Young''s modulus. SEM pictures show creation of ternary phase. Cellulose acetate keeps mechanical properties in moderate values although the trend
    is opposite to mPOE. With higher amount of cellulose impact
    strength was decreased, Young''s modulus increased and crystallinity of the matrix was decreased as well. Nanoclay showed best properties with small addition, which is related to highest surface area compared to the same volume of other fillers. With the addition of 3% of 30B, all mechanical properties decreased which can be the result of agglomeration of nanoparticles in microscale causing
    concentration of tension.
    Appears in Collections:[化學工程與材料工程學系暨研究所] 學位論文

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