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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/54172

    Title: 聚乳酸/氮化鋁導熱高分子複材之製備與性質研究
    Other Titles: The preparation and properties of PLA/AlN thermally conductive polymer composites
    Authors: 鄧佳宜;Teng, Chia-I
    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;氮化鋁;導熱高分子;聚烯烴;Poly(lactic acid);Aluminum Nitride;thermally conductive;polyolefin
    Date: 2011
    Issue Date: 2011-06-16 22:06:44 (UTC+8)
    Abstract: 本研究以生物可分解高分子聚乳酸為基材與陶瓷材料氮化鋁製備導熱複材,並以兩種不同增韌劑提升高分子複材之機械性質,以熔融混煉法及熱壓成型法製備複材。探討氮化鋁添加比例10 phr、20phr及30phr對於導熱係數之影響;更討論不同增韌劑對於複材之各種影響,包括拉伸性質、耐衝擊性質、顯微結構、熱性質及導熱之測試。
    In this study, we aimed at enhancing thermal conductivity of polymer composites. We use biodegradable polymer poly(lactic acid) to be the matrix and the ceramic powder aluminum nitride to be the filler. And we use two kinds of polyolefin to improve mechanical properties.We use blender and hot press method to produce our samples. The result was analyzed by tensile test, impact test, DSC, SEM and thermal conductivity.
    We found poly(lactic acid) is a hard and brittle materials form tensile test and impact test. The addition of aluminum nitride made composites more brittle. So we used POE and mPOE as toughener. It will improve elongation at break and impact strength, especially mPOE. Morphology of PLA/POE and PLA/mPOE composites were investigated by SEM, PLA and mPOE are compatible slightly. The degree of crystallization and melt temperature of blends were observed by differential scanning calorimetry (DSC). The results indicate the addition of elastomer or aluminum nitride decrease the degree of crystallization. Rheological properties were tested by plate to plate rheometer. The addition toughner made storage modulus decreased. Because of composites are softer than neat PLA. However more aluminum nitride made storage modulus increased. PLA/AlN composites become rigid. Thermal conductivity of PLA/AlN increased with AlN content increased. Compare with neat PLA, thermal conductivity of PLA/AlN 30 phr composite increase 46%.
    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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