臺灣博碩士論文加值系統

本研究主要探討幾丁聚醣微球的製備，幾丁聚醣微球的製造大致使用三聚磷酸鈉離子交聯與戊二醛化學交聯兩種形式，用以增強在酸性環境中的機械強度，並實驗測量各種製法幾丁聚醣微球對重金屬離子的吸附能力，使用PCS與SEM觀測微球大小與外觀。研究以微乳化有效地降低液滴之間的界面張力使乳液分散相質點更為細小，交聯更為迅速與完全。實驗結果以微乳化凝膠法製三聚磷酸鈉-幾丁聚醣微球擁有最大吸附量80.65mg Pb2+/g chitason，同時擁有最小顆粒平均粒徑為500 nm。

Some chitosan beads were prepared by ionic cross-linking with sodium tripolyphosphate and chemical cross-linking with glutaraldehyde in this research to increase the mechanical strength and stability in acidic solution. Investigation the adsorption capability of heavy metal, Pd2+ with chitosan bead in solution was studies in this research. The PCS and SEM were used to determine the particle size and appearance of beads. Microemulsion technique was used to prepare smaller chitosan bead with higher degree of cross-linking. Sodium tripolyphosphate-chitosan bead prepared from micro-emulsification have saturation adsorption amount 80.65 Pb2+ mg/g chitosan with a average particle size of 500nm.

第壹章、緒論
1-1前言………………………………………………………….……….1
1-2介紹微膠囊…………………………………………………………..2
1-3介紹幾丁質與幾丁聚醣……………………………………………..3
1-4介紹溶膠、凝膠……………………………………………………..5
1-5凝膠相分離法………………………………………………………..7
1-6實驗膠囊製備原理…………………………………………………..9
1-7幾丁聚醣對鉛的吸附機制…………………………………………12
1-8微乳液的結構與特性………………………………………………17
第貳章、實驗
2-1藥品……………………………………………….………..……….21
2-2儀器………………………………………………….…………...…23
2-3幾丁聚醣微球製備方法……………………………………………24
2-3-1凝固浴法………………………………………….………………24
2-3-2去溶劑化法……………………………………………………….25
2-3-3乳化凝膠法……………………………………………………….25
2-3-4改良式乳化凝膠法……………..………………………..……….26
2-3-5 W/O型微乳化凝膠法……………………………………………26
2-3-6乳化化學交聯法………………………………………...………..27
2-3-7微乳化化學交聯法………………………….…………..………..27
2-4幾丁聚醣微球吸附鉛金屬實驗……………………………………28
2-5重金屬含量實驗……………………………………………………29
2-6粒徑測量實驗………………………………………………………29
第參章、結果與討論
3-1幾丁聚醣微球吸附變因……………………………………………30
3-1-1固化膠囊時間…………………………………………….………30
3-1-2磁力攪拌………………………………………………………….32
3-1-3重金屬水溶液pH對幾丁聚醣吸附效能的影響………………...34
3-1-4幾丁聚醣來源………………..……...……………………………39
3-2各微球製法優缺點與改良…………………………………………41
3-3微乳化凝膠法………………………………………………………43
3-4 Langmuir吸附………………………………………………………48第肆章、結論
第伍章、參考文獻…………………………………………….….……..63

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