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題 名 | AA-NC Semi-IPNs木器塗料(2)--AA/NC組成對塗料與塗膜性質之影響=AA-NC Semi-IPNs Wood Coatings(Ⅱ)--Effects of AA/NC Compositions on the Properties of Coatings and Films |
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作 者 | 盧崑宗; 劉正字; 林士棉; | 書刊名 | 林業研究季刊 |
卷 期 | 25:2 2003.06[民92.06] |
頁 次 | 頁55-64 |
分類號 | 474.33 |
關鍵詞 | 酸硬化胺基醇酸樹脂; 硝化纖維素; 半互穿聚合體網狀結構物; 木器塗料; Acid-curing amino-alkyd resin; Nitrocellulose; Semi-interpenetrating polymer networks; Wood coatings; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究係以油溶性尿素樹脂(UF)及短油型大豆油變性醇酸樹酯(Alkyd),依UF/Alkyd=30/70(重量比),並以對甲苯磺酸為硬化劑(添加量UF重量之10%),調配成之酸硬化胺基醇酸樹脂(AA),再與硝化纖維素(NC)摻合,依連續式聚合而成AA-NC半互穿聚合體網狀結構物(Semi-IPNs)作為木器塗料,探討AA/NC組成對塗料及塗膜性質之影響。試驗結果發現,各種組成AA-NC Semi-IPNs之塗料乾燥性,塗膜硬度、耐磨耗性、拉伸強度及甲醛釋出量等均較AA者為佳,且隨NC含量之增加而愈為優良;然而,其可使用時間大幅縮短,影響塗裝作業性,塗膜破壞伸長率、抗彎曲性及耐衝擊性不佳,塗膜缺乏韌性,且耐光性亦較AA者為差。整體而言,胺基樹脂全部使用UF之AA-NC Semi-IPNs,並不適用為木器塗料。 |
英文摘要 | The AA-NC semi-interpenetrating polymer networks (semi-IPNs) made from acid-curing amino-alkyd resin (AA) and nitrocellulose (NC) were prepared by sequential polymerization for wood coatings. The AA was formulated by the composition of urea-formaldehyde resin (UF)/short-oil type soybean oil modified alkyd resin (Alkyd) =30/70 (by wt.) and the addition of 10% of p-toluenesulfonic acid solution (conc. 25% in isopropyl alcohol) based on the weight (of UF as catalyst. To investigate the effects of AA/NC compositions on the properties of AA-NC semi-IPNs coatings, five kinds of AA/NC compositions i.e. 100.0, 75/25, 50/50, 25/75, and 0/100 were examined in the study. The results indicated that the drying character of AA-NC semi-IPNs coatings, the hardness, abrasive resistance, tensile strength, and released formaldehyde of AA-NC semi-IPNs films were better than those of AA and these properties also enhanced with increasing NC. Whereas, the poor working ability by the shorter pot-life of AA-NC semi-IPNs coating than that of AA, and a brittle, yellowing film by the worse elongation at break, bending resistance, impact resistance, and lightfastness of AA-NC semi-IPNs films than those of AA, were gotten in this study. On these results, it could be suggested that the AA-NC semi-IPNs containing amino resin of UF only was unsuited for wood coatings. |
本系統中英文摘要資訊取自各篇刊載內容。