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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 戴怡德 | |
| dc.contributor.author | Kuan-An Chen | en |
| dc.contributor.author | 陳冠安 | zh_TW |
| dc.date.accessioned | 2021-06-15T06:44:28Z | - |
| dc.date.available | 2016-07-07 | |
| dc.date.copyright | 2011-07-07 | |
| dc.date.issued | 2011 | |
| dc.date.submitted | 2011-06-30 | |
| dc.identifier.citation | Boodhoo, K. V. K., R. J. Jachuck, “Process intensification: spinning disk reactor for syrene polymerization,” Applied Thermal Engineering, 20, 1127-1146 (2000)
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/48015 | - |
| dc.description.abstract | 碳酸鈣是一種用量龐大的無機材料，目前廣泛應用於橡膠、塑膠、造紙、塗料、建材、醫藥、封裝材料等方面。隨著用途不同，各領域對於產物性質也有著不同的需求，某些領域常常會需要特定晶貌之碳酸鈣微粉。一般而言，所謂的性質包括有產物的晶貌、粒徑、晶相與比表面積等，特別是晶貌與粒徑決定了產品的主要性能。
本研究以超重力輔助之微乳膠技術調控碳酸鈣微粉之性質，使用的逆微乳膠系統為AOT/異辛烷/水溶液，AOT為界面活性劑，異辛烷為油相，水溶液則是含氯化鈣或碳酸鈉反應物之水相。關於粉體之製備方式，首先，使用超重力裝置製備兩反應物之逆微乳膠溶液，接著，用磁攪拌混合二逆微乳膠溶液，待微胞交換溶質後碳酸鈣沉澱而出，離心並乾燥沉澱物即可得到碳酸鈣微粉。本研究主要探討超重力裝置對於逆微乳膠溶液其穩定性之影響；水相濃度、反應溫度、R值、添加劑等操作變數對碳酸鈣在晶貌、粒徑與晶相之影響。最後，分析產物之再現性、細部結構與比表面積。期望超重力裝置能幫助穩定逆微乳膠溶液，並得到產量高、粒徑均勻且具有特殊晶貌之碳酸鈣。 本研究證實在磁石攪拌器無法穩定之系統，超重力裝置能提供額外的能量來穩定逆微乳膠溶液。在磁石攪拌器已能穩定之系統，超重力裝置則有縮短成核引發時間與提高產率之效果，改善了傳統的逆微乳膠法其產率低的缺點。在產物方面則成功製備出均勻且再現性佳的圓盤狀、甜甜圈狀等特殊晶貌之碳酸鈣，圓盤狀碳酸鈣之粒徑約0.8~1μm，比表面積約9.18m2/g，甜甜圈狀碳酸鈣之粒徑約1~2μm，比表面積則高達45.33m2/g，預期可作為高效能的吸收劑。超重力輔助之微乳膠技術可說是一種非常具有發展潛力之技術 | zh_TW |
| dc.description.provenance | Made available in DSpace on 2021-06-15T06:44:28Z (GMT). No. of bitstreams: 1 ntu-100-R98524019-1.pdf: 15131625 bytes, checksum: 3d2ee1e7d97b749b50b59374be31ecfc (MD5) Previous issue date: 2011 | en |
| dc.description.tableofcontents | 摘要 I
Abstract II 目錄 IV 圖索引 VI 表索引 XIV 第一章 緒論 1 第二章 文獻回顧 4 2-1 結晶基本理論 4 2-1-1 溶解度與過飽和度 4 2-1-2 結晶方式 7 2-1-3 微觀混合對成核之影響 9 2-2 超重力系統簡介 10 2-2-1 超重力技術之介紹 10 2-2-2 超重力裝置之結構與原理 12 2-3 乳膠原理 15 2-3-1 界面活性劑之介紹 15 2-3-2 微胞之性質與結構 17 2-3-3 乳膠系統之介紹 22 2-4 碳酸鈣微粉之簡介 24 2-4-1 碳酸鈣之基本性質與應用 24 2-4-2 介穩相與穩定相 26 2-4-3 碳酸鈣之分類與製備方法 28 2-5 影響碳酸鈣性質之重要因素 29 2-5-1 逆微乳膠組成對碳酸鈣之影響 29 2-5-2 水相組成對碳酸鈣之影響 31 2-5-3 添加劑對碳酸鈣之影響 33 2-5-4 特殊晶貌之碳酸鈣 36 第三章 實驗原理與方法 38 3-1 實驗藥品 38 3-2 實驗裝置 39 3-3 分析儀器及原理 41 3-4 實驗流程與步驟 43 3-4-1 反應溶液之配製 43 3-4-2 逆微乳膠溶液之製備 44 3-4-3 碳酸鈣微粉之合成 46 3-5 產物分析 48 3-5-1 逆微乳膠溶液其微胞粒徑之量測 48 3-5-2 碳酸鈣產率之計算 48 3-5-3 碳酸鈣晶相之定量分析 49 3-5-4 碳酸鈣比表面積之量測 51 第四章 結果與討論 53 4-1 與以往實驗相比較之重現性 53 4-1-1 圓盤狀晶體之重現結果 53 4-1-2 甜甜圈狀晶體之重現結果 55 4-1-3 六角星狀晶體之重現結果 55 4-1-4 相同廠牌界面活性劑之影響 58 4-2 超重力輔助操作對逆微乳膠穩定性之影響 60 4-2-1 磁石攪拌器已能穩定之系統 60 4-2-2 磁石攪拌器無法穩定之系統 70 4-3 超重力輔助程序中操作變數對碳酸鈣性質之影響 76 4-3-1 水相濃度效應 76 4-3-2 反應溫度效應 87 4-3-3 不同R值(水相濃度比)之添加劑效應 91 4-3-4 磁石攪拌器與超重力裝置之產物比較 106 4-4 產物討論 117 4-4-1 圓盤狀碳酸鈣 117 4-4-2 甜甜圈狀碳酸鈣 120 第五章 結論 123 符號說明 125 參考文獻 127 | |
| dc.language.iso | zh-TW | |
| dc.title | 以超重力輔助之微乳膠技術製備碳酸鈣微粉 | zh_TW |
| dc.title | Synthesis of Calcium Carbonate Ultrafine Particles Using the Higee-Assisted Microemulsion Technique | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 99-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 吳乃立,劉懷勝,陳昱劭,史宗淮 | |
| dc.subject.keyword | 超重力,逆微乳膠法,碳酸鈣,晶貌與晶相控制, | zh_TW |
| dc.subject.keyword | Higee,microemulsion method,calcium carbonate,shape and morphology control, | en |
| dc.relation.page | 132 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2011-06-30 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 化學工程學研究所 | zh_TW |
| 顯示於系所單位： | 化學工程學系 | |
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