臺灣博碩士論文加值系統

摘要 iii
ABSTRACT iv
致謝 v
目錄 vi
圖目錄 ix
表目錄 xii
第一章 緒論 1
1.1聚乳酸(Polylactic Acid, PLA) 1
1.2成形技術與退火製程 2
1.3研究動機與目的 4
1.4研究方法 4
1.5論文架構 6
第二章 基礎理論與文獻回顧 7
2.1微射出成形(Micro Injection Molding)技術 7
2.2熱處理 7
2.3 退火處理(Annealing Process) 8
2.4表面粗糙度(Surface Roughness) 8
2.5結晶度(Crystallinity) 9
2.6差式掃描量熱儀(Differential Scanning Calorimetry, DSC) 9
2.7時間-溫度疊加原理(Time-Temperature Superposition, TTS) 10
2.7.1 Williams-Landel-Ferry方程式 10
2.7.2阿瑞尼斯方程式(Arrhenius Equation) 11
2.7.3活化能(Activation Energy) 11
2.8相關文獻 12
2.8.1退火相關文獻 12
2.8.2表面粗糙度相關文獻 14
2.8.3結晶度相關文獻 15
2.8.4時間-溫度疊加原理相關文獻 17
第三章 研究方法 18
3.1試驗設計 18
3.2產品模型建立 21
3.3模具介紹 22
3.4實驗設備 23
3.4.1 微射出成形機 23
3.4.2真空烘箱 24
3.4.3雷射共軛焦顯微鏡(Laser Scanning Confocal Microscopy, LSCM) 26
3.4.4差式掃描量熱儀(Differential Scanning Calorimetry, DSC) 27
3.4.5光學顯微鏡(Optical Microscope, OM) 28
3.5微射出成形試片製備與量測 29
3.5.1聚乳酸介紹 29
3.5.2微射出試片 30
3.5.3退火處理前PLA試片結晶度 32
3.5.4退火處理前PLA試片表面粗糙度 33
3.5.4.1退火處理前PLA試片表面粗糙度 35
3.5.5退火處理前PLA試片外形尺寸 41
3.5.5.1退火處理前PLA試片長度 42
3.5.5.2退火處理前PLA試片寬度 47
3.5.5.3退火處理前PLA試片厚度 52
第四章 結果與討論 58
4.1退火處理後結果 59
4.1.1退火處理後PLA試片結晶度 59
4.1.2退火處理後PLA試片表面粗糙度 62
4.1.3退火處理後PLA試片外形尺寸 71
4.1.3.1退火處理後PLA試片長度 71
4.1.3.2退火處理後PLA試片寬度 79
4.1.3.3退火處理後PLA試片厚度 87
4.2品質改善比率 95
4.2.1結晶度改善比率 95
4.2.2表面粗糙度改善比率 97
4.2.3 外形尺寸變化比率 104
4.2.3.1長度尺寸變化比率 104
4.2.3.2寬度尺寸變化比率 105
4.2.3.3厚度尺寸變化比率 106
4.3升溫階段熱處理結果 109
4.3.1升溫階段熱處理PLA試片表面粗糙度 109
4.3.2升溫階段退火處理PLA試片外形尺寸 115
4.3.2.1升溫階段退火處理PLA試片長度 115
4.3.2.2升溫階段退火處理PLA試片寬度 119
4.3.2.3升溫階段退火處理PLA試片厚度 123
4.3.3升溫階段退火處理PLA試片改善比率 127
4.3.3.1升溫階段退火處理表面粗糙度改善比率 127
4.3.3.2升溫階段退火處理外形尺寸變化比率 130
4.4時間與溫度疊加關係 133
4.4.1結晶度之WLF方程式 133
4.4.2表面粗糙度之WLF方程式 137
第五章 結論與未來展望 141
5.1結論 141
5.1.1結晶度與外形尺寸 141
5.1.2表面粗糙度 141
5.1.3時間與溫度疊加關係 141
參考文獻 143

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