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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(1)--合成條件對PRF及PMAF樹脂性質之影響=Studies on the Manufacture of Structural Laminated Woods Using Fast-Set Adhesives (Ⅰ)--The Effects of Synthetic Conditions on the Properties of PRF and PMAF Resins |
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作 者 | 劉正字; 李文昭; 江哲明; | 書刊名 | 林產工業 |
卷 期 | 17:2 1998.06[民87.06] |
頁 次 | 頁321-332 |
分類號 | 474.33 |
關鍵詞 | 快速硬化型膠合劑; 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-setting adhesive; Phenol-resorcinol-formaldehyde copolymer adhesive; PRF; Phenol-m-aminophenol-formaldehyde copolymer adhesive; PMAF; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究乃探討合成條件對酚-間苯二酚-甲醛樹脂(PRF)及酚-間胺基酚-甲醛樹脂 (PMAF)性質之影響,所得重要結果可歸納如下: 1.PMAF共聚合樹脂之膠化時間較RF樹脂短,PRF共聚合樹脂之膠化時間則較RF樹脂為長。 2.PMAF及PRF樹脂之粘度隨其台成時,PF預聚合反應之甲醛/酚之mole比增加或反應時間延 長、反應溫度增高而增大,膠化時間及保存性則縮短。PMAF共聚合樹脂其間胺基酚添加量較 高者,膠化時間較短。 3.提高RF樹脂、PRF樹脂或PMAF樹脂之PH值或增加硬化劑之添加量均可縮短其膠化時間, 且PH值對膠化時間影響之效應較硬化劑添加量更為明顯。 4.PRF樹脂之常態膠合強度及木破率均大於PMAF樹脂。PRF樹脂或PMAF樹脂之合成條件對其 膠合強度之影響並不明顯。 |
英文摘要 | In this study, the effects of synthetic conditions on the properties of phenol-resorcinol-formaldehyde copolymer adhesive(PRF) and phenol-m- aminophenol-formaldehyde copolymer adhesive(PMAF) were investigated. The results were summarized as follows: 1. The gelation time of PMAF copolymer resins were shorter than RF resin, but the gelation time of PRF copolymer resins were longer than RF resin. 2. The increment of the molar ratio of formaldehyde/phenol or the reaction time or the reaction temperature at the prepolymerization of PF resins would increase the viscocity and decrease the gelation time and storage life of PRF and PMAF resins. For PMAF resins, the more m-aminophenol added at the copolymerization of PMAF resins, the shorter gelation time of these resins would be. 3. The increment of the PH values or the level of hardener added of RF, PRF or PMAF resins would decrease their gelation time, and the effect of the decrement of PH value would be larger than the level of hardener added. 4. The dry bonding strength and wood failure of PRF resins were larger than PMAF resins and there had no significant effects of synthesis conditions on the bonding strength for both PRF and PMAF resins. |
本系統中英文摘要資訊取自各篇刊載內容。