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題 名 | 木材之化學改質及其膠合性之研究(4)[fec1]--不同乙醯化處理材之膠合性及塗裝性=Chemically Modified Wood and Its Gluing Properties (Ⅳ)[fec1]--Gluing and Coating Properties of Acetylated Wood |
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作 者 | 劉正字; 李文昭; 夏以淳; | 書刊名 | 林業研究季刊 |
卷 期 | 22:3 2000.09[民89.09] |
頁 次 | 頁27-36 |
分類號 | 436.188 |
關鍵詞 | 化學改質; 乙醯化; 膠合性; 塗裝性; Chemical modification; Acetylation; Gluing property; Coating property; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究以醋酸酐對杉木、紅柳桉及紅櫟木等3種木材行之醯化化學改質,並以尿素甲醛膠合劑(UF)、間二酚甲醛膠合劑(RF)、聚醋酸乙烯乳膠(PVAc)、聚胺基甲酸酯膠合劑(PU)、環氧樹脂膠合劑(Epoxy)等,及硝化纖維素洋料(NC lacquer)、聚胺基甲酸酯塗料(PU)等進行膠合及塗,探討乙醯化處理材之膠合性及塗裝性。由結果知,UF、RF、PU、Epoxy等膠合劑對乙醯化處理後木材之接觸角減小,乙醯化處狂材膠合時以RF膠之膠合效果最佳,UF膠最差,各乙醯化試材之膠合強度值均較未處理材降低。木材經乙醯化處理後之光澤度降低,然經NC lacquer或PU塗料塗裝後之光澤度則乙醯化處理材高於未乙醯化處理者,且其塗膜度、耐衝擊性及附著性多優於未經乙醯化處理者。 |
英文摘要 | This study investigated the gluing and coating properties of acetylated China fir (Cunninghamialanceolata), red lauan (Shorea spp.) and red oak (Quercus rubra) woods. After the treatment, the treated woods were glued with adhesives such as urea formaldehyde resin (UF), resorcinol formaldehyde resin (RF), polyvinyl acetate emulsion adhesive (PVAc), polyurethane resin (PU) and epoxy resin (epoxy), or coated with coatings such as nitrocellulose lacquer (NC lacquer) and polyurethane coating (PU). The results were summarized as follows: The contact angles of wood with UF, RF, PU and PVAc were diminished after the wood had been acetylated. Acetylated wood that glued with RF exhibited the best gluing properties, and glued with UF was the worst, but the bonding strength of all acetylated woods was lower than that of untreated woods. Acetylation treatment would reduce the gloss of wood. After the wood specimens were coated with NC lacquer or PU coating, the gloss of acetylated wood was higher than that of untreated wood, and the hardness, impact resistance and crosscut adhesion of the coating film of acetylated woods were better than that of untereated wood. |
本系統中英文摘要資訊取自各篇刊載內容。