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題 名 | 快速硬化型膠合劑製作結構用集成材之研究(2)--樹皮萃取物在快速硬化型膠合劑之應用=Studies on the Manufacture of Structural Laminated Woods using Fast-Set Adhesives (Ⅱ)--Application of Bark Extractives on the Fast-Set Adhesives |
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作 者 | 劉正字; 李文昭; 江哲明; | 書刊名 | 中華林學季刊 |
卷 期 | 31:3=122 1998.09[民87.09] |
頁 次 | 頁297-305 |
分類號 | 474.33 |
關鍵詞 | 快速硬化型膠合劑; 樹皮萃取物; 酚-間苯二酚-甲醛共聚合膠合劑; 酚-間胺基酚-甲醛共聚合膠合劑; Fast-set adhesive; Bark extractive; Phenol-resorcinol-formaldehyde copolymer adhesive; PRF; Phenol-m-aminophenol-formaldehyde copolymer adhesive; PMAF; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究乃探討將省產相思樹及臺灣二葉松之樹皮萃取物添加於間苯二酚-甲醛樹 脂( RF )、 酚-間苯二酚-甲醛樹脂( PRF )及酚-間胺基酚-甲醛樹脂( PMAF )時 對其性質之影響。 所得重要結果如下:於 RF、PRF、PMAF 等合成樹脂中直接加入樹皮粉為 填充劑時,對其合成樹脂之膠化時間並無影響,然添加樹皮萃取物時,則其膠化時間大幅縮 短,且隨萃取物添加量增加,膠液粘度增大,膠化時間進一步縮短。在樹脂╱萃取物混合比 100/50 時,RF 及 PRF 樹脂常態下之膠合強度值均在 120Kgf/cm �揖H上,且其常態及返覆 煮沸後膠合試驗之木破率均在 80 %以上,而單獨使用萃取物為膠合劑則其常態膠合強度值 偏低,且幾無耐水膠合強度可言。 |
英文摘要 | This study investigated the effects of the addition of Taiwan acacia (Acacia confusa Merr.) and Taiwan red pine (Pinus taiwanensis Hayata) bark extractives on the properties of resorcinol-formaldehyde resins (RF) , phenol-resorcinol-formaldehyde copolymer resins (PRF) and phenol-m-aminophenol-formaldehyde copolymer resins (PMAF). The gelation time of synthetic resins, such as RF, PRF and PMAF, was not influenced by the additon of wood garks straight as filler, but was shortened greatly by the addition of bark extractives. As the amonut of added bark extractives increased, the viscosity increased and the resin gelation time decreased. The dry bonding strengths of RF and PRF resins blended with bark extractives, at a blending ratio of 100/50, were over 120 Kgf/cm ��. Wood failures of specimens tested dry, or after repeatedly soaked in boiling water, were over 80%. However, if bark extractives were used as adhesives, their dry bondingb strength was weak and they had almost no wet bonding strength. |
本系統中英文摘要資訊取自各篇刊載內容。