木質文物修復填料──玻璃微粒及陶瓷微粒適用性研究

Restoration Fillers for Polychrome Wood - Applicability Researh on Glass Microspheres and Ceramic Microspheres

本研究針對玻璃微粒及陶瓷微粒進行各項試驗，以了解其作為木質文物修復填料之填充材的適用性。為了解玻璃微粒及陶瓷微粒作為木質文物修復填料之填充材的使用狀況，選擇不同比重及粒徑的空心與實心的玻璃微粒及陶瓷微粒，分別混合結合劑製成不同比例（10％、20％、30％）的試驗樣本。經文獻回顧及分析後，結合劑使用老化性質穩定的壓克力乳劑Plextol®D498，並加入成分相近的Lascaux®498HV作為比較。綜合各試驗結果，空心玻璃微粒具輕質比重小特性且親水性適中，在低至高體積百分濃度皆有良好操作性，適合表面性較薄的缺失處填補，實心玻璃微粒則具一定質量且比重大，親水性較空心玻璃微粒高，在不同濃度皆有良好操作性，但低濃度時易出現劣化，適合以高濃度施作於需要結構強度或是厚實填補的缺失處。陶瓷微粒介於兩者之間，比重與實心玻璃微粒相近，但親水性與空心玻璃微粒相近，硬度較實心玻璃微粒高，同時具有兩者之性質，各試驗結果皆顯示陶瓷微粒之物理性質穩定。本研究認為陶瓷微粒為木質文物修復之填充材選用的新選擇，單獨使用或與玻璃微粒相互混合使用作為修復填料，未來可進一步探討微米級粒子在物理性質上互補作用。然而在實際使用時建議依據本研究各項試驗結果，選擇適合的微米級粒子。

This research conducted various tests on ceramic microspheres and glass microspheres, and made a comprehensive analysis of the test results to understand their applicability as fillers for the restoration of cultural heritage polychrome wood. In order to understand the use of micron-level synthetic fillers as fillers for restoration of painted wood, this study selected glass microballons, glass microballs and ceramic microballs with different specific gravities and particle sizes, mixed with binders in different proportions (10%, 20%, 30%). The appropriate binders, acrylic emulsions with stable aging properties, Plextol® D 498, and Lascaux® 498 were selected after literature review and analysis. Finally, this research discusses the test and observation results of various glass microspheres and ceramic microspheres, comparing the physical properties of each as restoration fillers.