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題 名 | 酚液化孟宗竹製備Resol型醇溶性酚樹脂及其性質=Preparation and Properties of Resol Type Alcohol Soluble PF Resins Made from the Liquefied Moso Bamboo (Phyllostachys Pubesens) |
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作 者 | 陳奕君; 李文昭; 劉正字; | 書刊名 | 林業研究季刊 |
卷 期 | 29:2 2007.06[民96.06] |
頁 次 | 頁55-65 |
分類號 | 474.1 |
關鍵詞 | 醇溶性酚樹脂; 液化竹材; 成型物; 孟宗竹; Alcohol sOluble PF resin; Liquefied bamboo; Moldings; Phyllostachys pubesens; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究以酚為溶劑,H₂SO₄及HCl為催化劑就孟宗竹材進行液化處理,並將孟宗竹液化產物應用於Resol型醇溶性酚樹脂之製備,探討其適用之合成條件及其合成樹脂之性質。由試驗結果顯示,液化時以H₂SO₄為催化劑者有較佳之液化效果。將液化孟宗竹應用於Resol型醇溶性酚樹脂製備時,宜採用之合成條件為甲醛/酚(E/P)莫耳比1.2/1,氨水/酚添加比10/1(mL/莫耳),合成反應時應先將酚液化竹材與福馬林先行混合,並添加15g之40%NaOH□及1/3量之氨水,隨後將反應液於60min內加熱至65℃,再逐漸加入其餘之氨水,並在溫度80℃進行反應20-30min。所合成液態之酚樹脂應用於成型物製作時宜先以80℃加熱24hr,再以135℃加熱0.5hr,熱硬化樹脂之重量保留率可達92.5-99.7%。 |
英文摘要 | MOso bamboo (Phyllostachys pubesens) was liquefied in phenol with the H₂SO₄ and HCI as catalyst. The liquefied bamboo was used in the preparation of resol type alcohol soluble RF resin. The appropriate synthesis conditions and the properties of these RF resins were investigated. The results showed that moso bamboo liquefied with H₂SO₄ as the catalyst had better effect. As the liquefied bamboo was used in the preparation of resol type alcohol soluble PF resins, the adequate synthesis conditions were using the formaldehyde/phenol (F/P) molar ration of 1.2/1 and ammonia/phenol (mL/mole) of 10/1. The calculated amount of liquefied bamboo, formalin, 15g of 40% NaOH□ and third amount of ammonia solution should be mixed completely prior to synthesis processing, and then the reactant would be heating to 65°C within 60 min, followed by adding the remnant ammonia solution gradually, and maintained the reaction temperature at 80°C for 20 to 30 min. When the liquid type PF resins were used in the manufacturing of moldings, it should be heating at 80°C for 24 hr first, and then elevated the temperature to 135°C for 0.5 hr. The weight retention of the thermosetting resins was between 92.5% and 99.7%. |
本系統中英文摘要資訊取自各篇刊載內容。