中文摘要 本研究將Vectra A950與聚碳酸酯(Polycarbonate,簡稱PC)以不同的比例，使用塑譜儀進行混煉。針對高Vectra A950含量試樣與高PC含量試樣，討論混煉後的熱性質、熱動態機械性質、混合型態、穩態流變行為與動態流變行為。 研究結果顯示，Vectra A950與PC共混煉後由SEM的圖片分析中得知為連續相與懸浮相之兩相分離且界面較為脆弱。在熱性質方面；熱重量損失實驗結果呈現在最大量的劣解溫度出現不同於兩混合純料的第三特性峰。混煉物均呈現單一的玻璃轉移溫度，且都介於在兩純料的玻璃轉移溫度之間。在機械性質方面；由熱動態分析儀與旋轉式流變儀的實驗結果顯示，高Vectra A950含量試樣會因為加入PC混煉後造成儲存模數下降、損失模數上升。高PC含量的試樣，加入Vectra A950混煉後，儲存模數沒有明顯的改變，但是，損失模數卻明顯的降低。 Abstract This research blends the Vectra A950 and polycarbonate in various compositions, and discusses thermal properties, dynamic mechanical properties, mixing behavior, steady-state flow behavior and linear viscoelastic behavior of Vectra A950-rich samples and PC-rich samples. The SEM results shows that blends of the Vectra A950 and PC are totally phase separated and interface adhesion is week. The TGA results show an extra most degradation temperature peak emerges. All blends show a unique glass transition temperature which sits between the Tg’s of the constituents. The DMA and rotational rheometer results reveal that the addition of PC to Vectra A950 reduces storage modulus and enhances loss modulus. For these PC-rich blends, addition of Vectra A950 has no influence to storage modulus and greatly reduces loss modulus.
