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  5. 添加氧化鋅奈米顆粒的增材製造樹脂義齒基底之性能評估
 
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添加氧化鋅奈米顆粒的增材製造樹脂義齒基底之性能評估

Other Title
Performance Evaluation of Additively Manufactured Denture Bases with Zinc Oxide Nanoparticles
Type
thesis
Date Issued
2025-07-14
Author(s)
洪郁仁
Advisor
李薇芳
Subjects
系所名稱:牙體技術學系碩士班
Publisher
牙體技術學系碩士班
Description
學位別:碩士
口試委員:彭珮雯; 馬天儷; 李薇芳
關鍵字:氧化鋅奈米顆粒、矽烷化、光固化樹脂、3D列印
Abstract
隨著高齡化社會來臨,義齒需求逐漸攀升,3D列印技術已逐漸成為提升義齒製作效率與客製化的關鍵工具。本研究旨在評估氧化鋅奈米顆粒(ZnO nanoparticles, ZnO NPs)應用於數位光固化增材製造(Additive Manufacturing, AM)義齒基底樹脂中的可行性與性能影響,並探討不同濃度與矽烷化表面改質對材料結構與物性表現之影響。
試驗設計分為未矽烷化與矽烷化兩大組別,並依添加濃度分為0%、0.5%、1%、2%、3%,以符合ISO 20795-1:2013之規格製作標準試片(65 × 10 × 3.3 mm)。 材料性質經由動態光散射粒徑分析儀(Dynamic Light Scattering, DLS)與掃描式電子顯微鏡(Scanning Electron Microscope, SEM)分析顯示,矽烷化可有效降低粒徑聚集傾向,提升分散穩定性與微觀結構均勻性。能量散射X射線譜(Energy-dispersive X-ray spectroscopy, EDS)與X光繞射分析(X-ray Diffraction, XRD)確認ZnO於樹脂中之分佈與結晶行為,並顯示矽烷化可影響其晶格排列與結合狀態,進一步透過接觸角量測、比色分析與粗糙度測試觀察材料表面性質變化。
結果指出ZnO濃度增加則降低表面親水性與粗糙度,但亦導致色差變化增加,矽烷化處理則進一步放大其光學差異。在機械性質方面,材料的抗彎曲強度隨ZnO濃度與矽烷化處理條件呈現差異。未矽烷化組於0.5%濃度下達到強度峰值,而矽烷化組則在2%濃度表現最佳,顯著優於對應未改質組(p < 0.05)。相較之下,硬度在各組間變化不大,整體無明顯趨勢,顯示ZnO顆粒對硬度影響有限。
結論,本研究適量添加ZnO奈米顆粒具有改善3D列印義齒基底樹脂機械與表面性質的潛力,尤其在經過矽烷化改質後,於2%濃度條件下能獲得最佳結構的穩定性與抗彎曲的表現,未來可作為數位牙科材料上強化設計與臨床應用等重要依。
URI
https://203.71.86.71/handle/123456789/9353

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