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研究生:賴靜荷
研究生(外文):LAI, JING-HE
論文名稱:聚醯胺6微球製備之研究
論文名稱(外文):Study on Preparation of Polyamide 6 Microspheres
指導教授:劉博滔
指導教授(外文):LIU, BO-TAU
口試委員:林語堂許淳鈞
口試委員(外文):LIN, YU-TANGSHIU, CHUEN-JIUN
口試日期:2018-04-10
學位類別:碩士
校院名稱:國立雲林科技大學
系所名稱:化學工程與材料工程系
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:2018
畢業學年度:106
語文別:中文
論文頁數:74
中文關鍵詞:聚醯胺 6微球溶劑沉析法陰離子聚合分散聚合
外文關鍵詞:Polyamide 6microsphereSolvent precipitationAnionic polymerizationDispersion polymerization
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  • 被引用被引用:0
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聚醯胺粉末具有優良的機械性質、抗磨損、耐化學性、 熔融流動性和加工性,廣泛的應用在各個領域,包括粉末塗料、化妝品、激光燒結材料、醫藥載體等,為一種有發展前景的高分子材料。
本研究以製備聚醯胺 6 微球粉末為主,分別進行物理溶劑沉析法與陰離子聚合法來探討。物理溶劑沉析法是以PVP 當保護劑, 其藉由不同溫度與不同分子量PVP 可以製備出 不同的粒徑大小,而製程中甲醇的殘留會影響到析出成球。陰離子聚合法發現添加硬脂酸鈉會使粒徑有所改變,在 0.3 wt%硬脂酸鈉時其粒徑較大。透過 XRD、 TGA、 DSC 等儀器進行檢測,物理溶劑沉析法微球粉末性質與原聚醯胺 6 性質差異不大。陰離子聚合法的微球粉末在 0.3 wt%硬脂酸鈉下能有較佳裂解性質和結晶度。
Polyamide powders have excellent mechanical properties, wear resistance,chemical resistance, melt flowability, and processability. They have been widely used in various fields such as powder coating, cosmetics, laser sintering materials, and pharmaceutical carrier, being very promising polymer materials.
In this study, polyamide 6 microspheres were prepared by the solvent precipitation method and anionic polymerization method, respectively. Different particle sizes can be prepared with various temperatures and various molecular-weights of PVP by the precipitation method. The residual methanol in the solution influences the formation of polyamide 6 microspheres. With respect to the anionic polymerization method, it was found that the addition of sodium stearate would change the particle size and the maximal particle size was prepared with 0.3 wt% sodium stearate. According to the analyses of XRD, TGA, DSC and other instruments, the properties of microspheres prepared by the solvent precipitation method is similar to that of pristine polyamide 6 and the microspheres prepared with 0.3 wt% sodium stearate by the anionic polymerization method feature optimal thermal stability and crystallinity.
目錄
摘要 i
Abstract ii
誌謝 iii
目錄 iv
表目錄 vii
圖目錄 viii
第一章 緒論 1
1.1聚醯胺簡介 1
1.2聚醯胺應用 3
1.3高分子微球在3D列印的應用 4
1.4研究動機 5
第二章 文獻回顧 6
2.1 聚醯胺6製備方法 6
2.1.1水解開環聚合法 6
2.1.2陰離子聚合法 9
2.2 聚醯胺6微球製備方法 10
2.2.1物理溶劑沉析法 10
2.2.2陰離子聚合成型法 13
第三章 實驗方法 17
3.1實驗藥品 17
3.2實驗儀器 18
3.3實驗流程 19
3.3.1物理溶劑沉析法 19
3.3.2陰離子聚合法 20
3.4材料檢測 21
3.4.1光學顯微鏡(Optical microscope, OM) 21
3.4.2掃描式電子顯微鏡(Scanning Electron Microscopy, SEM) 21
3.4.3 X-射線繞射儀(X-Ray Diffraction, XRD) 21
3.4.4比表面積及孔徑分析儀(BET) 22
3.4.5熱重分析儀(Thermogravimetric analysis, TGA) 22
3.4.6示差掃瞄熱量分析儀(Differential scanning calorimetry, DSC) 22
3.4.7雷射粒徑分析儀(Laser Diffraction Particle Size Analyzer, PSA) 23
3.4.8 分子量的測定 23
第四章 結果與討論 24
4.1物理溶劑沉析法 24
4.1.1不同溫度的影響 25
4.1.2不同PVP分子量影響 28
4.1.3製程方法對微球成形的影響 35
4.2陰離子聚合法 38
4.2.1聚醯胺6微球表面特徵與界面活性劑的影響 39
4.2.2 改變起始劑的影響 44
4.2.3改變催化劑的影響 46
4.2.4改變單體初始濃度 49
4.3聚醯胺6的結構與性能比較 52
第五章 結論 58
參考文獻 59


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