金屬有機骨架粉末於擠出滾圓造粒技術應用之研究

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姓名

林泊邑(Po-yi Lin) 查詢紙本館藏

畢業系所

機械工程學系

論文名稱

金屬有機骨架粉末於擠出滾圓造粒技術應用之研究

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至系統瀏覽論文 (2029-7-31以後開放)

摘要(中)

本論文主要以金屬有機骨架材料（MOF）作為實驗材料，並使用羧甲基纖維素鈉（CMC-NA）作為賦形劑，實驗設備為工研院提供濕式籃式進料擠出機和球形搓圓機，將對MOF粉體進行擠出滾圓(Extrusion Spheronization)的濕式造粒。通過調整濕粉團水分含量、賦形劑濃度、賦形劑固含量、擠出機主軸轉速、擠出機篩網孔洞大小、滾圓機轉速、滾圓機負載量等，其最終目的在於探討擠出滾圓製程的機制，透過改變不同造粒參數來提升MOF顆粒的品值，本實驗將針對最終顆粒之尺寸分布、顆粒縱橫比、顆粒強度、顆粒速度場等探討其相關造粒機制。
實驗結果顯示水分含量為擠出滾圓造粒相當關鍵的參數，當水分含量過低時，擠出物會變得酥脆，無法順利形成球形顆粒，導致圓柱狀擠出物破裂成細粉。若水分含量過高，擠出物會呈現黏滯狀態，使顆粒過快地互相黏結，形成過大的團聚顆粒。只有在水分含量適中時，擠出物才會具有適合塑形的塑性，能夠在滾圓過程中逐漸形成均勻且緻密的球形顆粒。此外，擠出機主軸轉速、篩網孔洞尺寸、滾圓機負載量等操作參數也對合格的MOF顆粒品質具有重要影響，這些參數在本文也將更詳細的討論。

摘要(英)

This thesis primarily focuses on using Metal-Organic Framework (MOF) materials as experimental subjects, with sodium carboxymethyl cellulose (CMC-NA) as a binder. The experimental equipment, provided by the Industrial Technology Research Institute (ITRI), includes a wet basket-feed extruder and a spheronizer, which are used for wet granulation of MOF powders through extrusion spheronization. By adjusting various parameters such as the moisture content of the wet mass, binder concentration, binder solid content, extruder shaft speed, extruder screen size, spheronizer speed, and spheronizer load, the ultimate goal is to investigate the mechanism of the extrusion spheronization process. This is achieved by altering different granulation parameters to enhance the quality of MOF granules. This study specifically examines the granulation mechanism related to the final particle size distribution, particle aspect ratio, particle strength, and particle velocity field.
The experimental results indicate that moisture content is a crucial parameter for extrusion spheronization granulation. When the moisture content is too low, the extrudate becomes brittle and cannot form spherical granules properly, resulting in the cylindrical extrudate breaking into fine powder. Conversely, if the moisture content is too high, the extrudate becomes viscous, causing the granules to stick together too quickly, leading to the formation of oversized agglomerates. Only with an appropriate moisture content does the extrudate exhibit suitable plasticity, allowing for the gradual formation of uniform and dense spherical granules during the spheronization process.Furthermore, the operating parameters such as the extruder spindle speed, screen hole size, and granulator load significantly influence the quality of the MOF granules. These parameters will be discussed in more detail in this thesis.

關鍵字(中)

★ 造粒
★ 擠出滾圓
★ 金屬有機骨架
★ 濕式擠出機
★ 球形搓圓機
★ 吸附劑
★ 除濕
★ 擠出物節點

關鍵字(英)

★ Granulation
★ Extrusion-Spheronization
★ MOF, Metal-Organic Framework
★ Wet Extruder
★ Spheronizer Machine
★ Adsorbent
★ Dehumidification
★ Extrudate Fractures

論文目次

摘要 I
Abstract II
致謝 III
目錄 IV
附圖目錄 VI
附表目錄 XVII
符號說明 XVIII
第一章簡介 1
1-1前言 1
1-1-1造粒技術與機制 1
1-1-2擠出滾圓造粒技術 2
1-1-2-1擠出技術 3
1-1-2-2滾圓技術 4
1-1-3滾圓顆粒流動性分析 6
1-2研究動機 8
第二章實驗方法與原理 17
2-1實驗設備與材料 17
2-1-1金屬有機骨架材料 17
2-1-2賦形劑CMC-NA 18
2-1-3擠出滾圓裝置 18
2-1-4重量的精準控制 19
2-2實驗流程 19
2-1-5混合設備 20
2-1-5-1 抬頭攪拌機 20
2-1-5-2電動攪拌機 20
2-1-6影像拍攝 21
2-3分析方法 21
2-3-1水分含量檢驗 21
2-3-2檢驗顆粒尺寸 22
2-3-3檢驗顆粒硬度和脆性 22
2-3-4檢驗顆粒堆積密度 22
2-3-5速度場分析 23
2-3-6顆粒真圓度分析 24
2-3-7粉體性質分析 24
第三章結果與討論 37
3-1 初始原料對後續擠出滾圓之探討 38
3-1-1 初始粉末粒徑尺寸對擠出滾圓的影響 38
3-1-2 賦形劑濃度與固含量對擠出滾圓的影響 39
3-2 水分含量對擠出滾圓之探討 40
3-3 擠出參數對結果之探討 41
3-3-1 擠出三次與擠出一次的比較 42
3-3-2 不同Wdo擠出一次的比較 44
3-3-3 擠出機主軸轉速對擠出滾圓的影響 45
3-3-4 擠出機篩網孔洞對擠出滾圓的影響 49
3-4 滾圓參數對結果之探討 51
3-4-1 滾圓機負載量對擠出滾圓的影響 52
3-4-2 滾圓時添加額外粉末對擠出滾圓的影響 57
第四章結論與建議 116
參考文獻 118

參考文獻

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指導教授

蕭述三(Shu-San Hsiau)

審核日期

2024-8-7

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