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研究生:陳彥夫
研究生(外文):Yen-Fu Chen
論文名稱:PLA/PBATBlends之形態學及物性之研究
論文名稱(外文):A Study on Morphology and Physical Properties of PLA/PBAT blends
指導教授:邱顯堂
指導教授(外文):Hsien-Tang Chiu
學位類別:碩士
校院名稱:國立臺灣科技大學
系所名稱:高分子系
學門:工程學門
學類:化學工程學類
論文種類:學術論文
論文出版年:2008
畢業學年度:96
語文別:中文
論文頁數:62
中文關鍵詞:聚乳酸聚對苯二甲酸-己二酸丁二醇三元共聚酯力學性質熱處理相容性
外文關鍵詞:PLAPBATmechanical propertiesannealingcompatible
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本文主要在探討聚乳酸與聚對苯二甲酸己二酸丁二醇酯共混物的物理性質、形態及經過熱處理後的影響。使用雙螺桿混練機及射出成型機制備聚乳酸/聚對苯二甲酸-己二酸-1,4-丁二醇三元共聚酯(PLA/PBAT)共混物。採用DSC及DMA來了解材料的熱性質,拉力試驗機及衝擊試驗機等來研究共混物的力學性質,XRD及POM觀察共混物的結晶性,以及用SEM觀察破壞表面的形態。結果顯示PLA/PBAT共混物隨PBAT含量的增加而抗拉強度下降,伸長率則隨PBAT含量增加上升,衝擊吸收能也隨PBAT含量增加上升。經過熱處理後PLA的抗拉強度及楊氏係數會上升,並且加入PBAT會使得PLA的結晶有明顯的下降。PLA/PBAT的共混物在形態和熱性質上相容性不佳。
This paper report to study of mechanical properties and morphology of annealing PLA/PBAT blends. These materials were fabricated into the injection moldings by using twin-screw extruder and injection molding machine. The thermal properties of these blends were investigated by DSC and DMA. The values of tensile strength and fracture toughness were measured by tension machine and Izod impact machine. Crystallinity were observed by XRD and POM. Fracture surfaces were observed using SEM to study the morphology of blends. The results showed that the tensile strength of PLA/PBAT blends decrease with PBAT increase, elongation increase with PBAT increase. The impact strength increase with PBAT increase. Young’s modulus, tensile strength and Crystallinity increased after annealing. Crystallinity of PLA/PBAT blends decrease with PBAT increase. PLA/PBAT were incompatible with each other on morphology and thermal properties.
中文摘要………………………………………………………………Ⅰ
英文摘要………………………………………………………………Ⅱ
誌謝……………………………………………………………………Ⅲ
目錄……………………………………………………………………Ⅳ
表索引…………………………………………………………………Ⅵ
圖索引…………………………………………………………………Ⅶ
第一章  緒論…………………………………………………………1
第二章  文獻回顧……………………………………………………4
2.1 聚乳酸……………………………………………………………4
2.2 聚對苯二甲酸己二酸丁二醇共聚酯……………………………11
2.3 聚摻合……………………………………………………………12
第三章  實驗…………………………………………………………17
3.1 試片製備…………………………………………………………17
3.1.1 原料……………………………………………………17
3.1.2 製備儀器………………………………………………17
3.1.3 製備方法………………………………………………17
3.2 性質測定…………………………………………………………18
3.2.1 測定儀器………………………………………………18
3.2.2 測定方法………………………………………………19
3.2.2.1 結晶形態觀測………………………………19
3.2.2.2 拉伸強度測試………………………………21
3.2.2.3 衝擊強度測試………………………………22
3.2.3.4 形態觀察……………………………………23
3.2.2.5 熱性質分析…………………………………24
3.2.2.6 動態機械分析………………………………25
3.2.2.7 熱變形溫度測試……………………………25
3.3 實驗流程圖………………………………………………………27
第四章 結果與討論……………………………………………………28
4.1 PLA╱ECOFLEX摻合物之結晶形態………………………………28
4.2 PLA╱ECOFLEX摻合物之力學性質………………………………30
4.3 PLA╱ECOFLEX摻合物之表面形態………………………………32
4.4 PLA╱ECOFLEX摻合物之熱性質…………………………………34
第五章 結論…………………………………………………………57
第六章 參考文獻……………………………………………………58
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