【學術亮點】Castor oil and its glyceride-based polyurethane flexible and rigid foam with vanillin for antibacterial material
Facility Agricultural: Utilization of Livestock Waste in Automated Cultivation of Microalgae and Reutilization in Poultry Farming【Department of Forestry / Chen, Yi-Chun / Professor】
設施農業：畜牧廢棄物於小球藻自動栽培與禽類再利用【森林學系/陳奕君教授】
| 論文篇名 | 英文：Castor oil and its glyceride-based polyurethane flexible and rigid foam with vanillin for antibacterial material 中文：香草醛添加蓖麻油及其甘油酯基之軟硬性發泡體於抗菌材料之應用 |
| 期刊名稱 | Industrial Crops and Product |
| 發表年份,卷數,起迄頁數 | 2025, 232, no.121275 |
| 作者 | Wu, Yao-Chi; Chen, Yi-Chun(陳奕君)* |
| DOI | 10.1016/j.indcrop.2025.121275 |
| 中文摘要 | 本研究以蓖麻油與甘油進行酯交換反應，成功合成蓖麻油甘油酯(Castor oil glyceride)，並以其作為多元醇原料與1,6-己二異氰酸酯三聚體（HDB）反應製備聚胺基甲酸酯（PU）泡棉。實驗中於配方中添加不同比例之香草醛（vanillin），分別佔多元醇總羥基之10%與20%，以探討COG與香草醛對PU發泡體性質之影響。結果顯示，COG成功合成，其羥值為339.1 mg KOH/g，重量平均分子量為860 g/mol，分散指數為1.3。與傳統蓖麻油基PU泡棉相比，COG基發泡體具有較短的反應時間、更高的壓縮強度與熱穩定性。隨著香草醛比例增加，發泡體密度與壓縮強度略為下降，但其溶劑殘留率皆高於95%。香草醛的引入略微提升泡棉之熱性質，並與蓖麻油產生協同抗菌效果，顯著增強其抗菌活性。此結果顯示，結合香草醛與蓖麻油製得之生質PU泡棉兼具良好力學性質、熱穩定性與抗菌功能，具應用於環保建材與綠色製造領域之潛力。 |
| 英文摘要 | Castor oil glyceride (COG) was synthesized via transesterification of castor oil with glycerol. Polyurethane (PU) foams were subsequently prepared by reacting castor oil or COG as the polyol component with 1,6-hexamethylene diisocyanate trimer biuret (HDB). Vanillin was incorporated in quantities equivalent corresponding to 10 % or 20 % of the total hydroxyl groups of the polyol. The effects of COG and vanillin as raw materials on the properties of PU foams were investigated. The successful synthesis of COG was confirmed, exhibiting a hydroxyl value of 339.1 mg KOH/g, a weight average molecular weight (Mw) of 860 g/mol, and a polydispersity index (PDI) of 1.3 g/mol. Compared to castor oil-based PU foams, COG-based foams exhibited a shorter reaction time, along with significantly higher compressive strength and thermal stability. Increasing the vanillin content led to a decrease in both foam density and compressive strength. The weight retention of solvents exhibited an efficiency above 95 %. The incorporation of vanillin demonstrated a slight enhancement in the thermal properties of castor oil-based foams. Notably, the incorporation of vanillin and castor oil improves the antibacterial activity of the bio-based PU foams. Vanillin addition contributed to the enhancement of the thermal and antibacterial properties of castor oil-derived PU foams. |
| 發表成果與本中心研究主題相關性 | 農業副產物循環利用為核心，未來推動蓖麻油發泡體於小球藻再利用技術推動低碳製程與永續農業產業鏈發展。 |
