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研究生:李佩華
論文名稱:酚液化竹材製備酚樹脂膠合劑之研究
論文名稱(外文):Study on Phenolic Resins Prepared with Liquefied Phenolated Bamboo
指導教授:林正榮林正榮引用關係
指導教授(外文):Lin, Cheng-Jung
學位類別:碩士
校院名稱:國立屏東科技大學
系所名稱:木材科學與設計系所
學門:農業科學學門
學類:林業學類
論文種類:學術論文
論文出版年:2008
畢業學年度:96
語文別:中文
論文頁數:69
中文關鍵詞:酚液化竹材膠合剪力強度resol型酚甲醛樹脂間苯二酚-酚甲醛樹脂
外文關鍵詞:liquefied phenolated bambooshear bond strengthresol-type phenol- formaldehyde resinresorcinol-phenol-formaldehyde resin
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本研究以苯磺酸及對甲苯磺酸為催化劑進行孟宗竹之酚液化處理,探討其最適當之液化條件,及液化產物用於製備resol型酚甲醛樹脂(phenol formaldehyde;PF)與間苯二酚-酚-甲醛樹脂(resorcinol phenol formaldehyde;RPF)之最適當合成條件,及其樹脂應用於合板與木材之膠合性能。結果顯示,酚液化孟宗竹材之最適當液化條件為酚/竹粉重量比3.0/1.0,苯磺酸催化劑用量,以對酚添加量為5-15 %,反應溫度130 ℃,反應60 min。酚液化竹材以製備水溶性Resol型酚樹脂條件時,以甲醛/酚化竹材產物(phenolated bamboo;Pb)/NaOH之莫耳比1.8/1/0.4,在85 ℃反應溫度下反應30 min者,其用於合板膠合之膠合剪力最佳,且均能符合合板標準膠合強度大於7 kgf/cm2以上之要求(CNS 1349 , 2008)。以液化竹材產物製備間苯二酚-酚-甲醛樹脂製備時,其合成條件以液化竹材Pb / F1(第一階段所添加福馬林之莫耳比) / F2(第二階段所添加福馬林之莫耳比)/ R=1/0.5/0.34/0.34時,有較佳之膠合強度值。以各種液化產物製備間苯二酚-酚甲醛樹脂,其中除PRPbF-30外,其餘皆能符合CNS 11031結構用集成材之膠合強度要求。
The purpose of this study was intend to use benzenesulfonic acid and p-toluenesulfonic acid as catalysts in phenolation of moso bamboo inner layler shavings trying to find out the suitable liquefaction conditions .Then, what is the most suitable synthetic conditions for preparing PF and RPF from phenolated moso bamboo and the shear bond strength of plywood and glued laminated wood bonded by these phenolic resins were also studied .
The results show that the suitable conditions for phenolation of moso bamboo inner layler shavings were phenol-to-bamboo weight ratio of 3.0/1.0 , with benzenesulfonic acid addition ranging from 7.5-15 % , at the reaction temperature of 130 ℃ for 60 min. And the most suitable condition for preparing water-soluble phenolic resol resin from phenolated moso bamboo is the formulation that with the molar ratio of formaldehyde to phenolated bamboo to NaOH is 1.8/1/0.4 , and at 85 ℃ reaction for 30 min .The shear bond strength of plywood bonded by this phenolic resol resin can be satisfied with the Chinese National Standard (CNS 1349 , 2008).Its requirement of shear bond strength should be over 7 kgf /cm2.

The most suitable condition for preparing resorcinol phenol formaldehyde resin from phenolated moso bamboo is with the molar ratio of phenolated bamboo / F1 / F2 / R=1/0.5/0.34/0.34. The shear bond strength of those resin were able to satisfy the requirements specified in CNS-11031 structural glued laminated wood .
目 錄
摘 要 I
Abstract Ⅲ
謝 誌……………………………………………………………………... Ⅴ目 錄 Ⅶ
圖表目錄 Ⅸ
壹、 前 言 1
貳、 文獻回顧 2
一、液化處理之原因 2
二、液化反應機制之分類 2
(一) 溶劑 2
(二) 催化劑 4
三、液化過程中主要之反應 6
四、液化之機制 6
五、影響液化效果之因子 9
(一) 重量比 9
(二) 反應溫度 9
(三) 反應時間 10
(四) 催化劑之種類與添加量 10
(五) 木粉含水率 10
(六) 木粉之粒徑 11
六、酚甲醛樹脂之合成 11
七、液化木竹材製產物備酚樹脂性質之影響因子 13
(一) 甲醛/液化木材(F/PW)之莫耳比 13
(二) 合成反應溫度 14
(三) 氫氧化鈉/酚莫耳比 14
八、間苯二酚-酚甲醛樹脂膠合劑 14
參、 材料與方法 16
一、試驗材料 16
(一) 試藥 16
(二) 試材 17
二、試驗方法 18
(一) 孟宗竹酚液化處理及產物性質 18

(二) 液化竹材製備resol型酚甲醛樹脂 22
(三) 液化竹材製備間苯二酚-酚甲醛樹脂合成 30
肆、結果與討論 35
一、酚液化孟宗竹處理 35
(一)孟宗竹之化學組成分 35
    (二)酚液化孟宗竹材產物之基本性質 35
  二、酚液化產物製備resol型酚甲醛樹脂 47
(一) Resol型酚甲醛樹脂基本性質 47
(二)酚甲醛樹脂之熱硬化性分析 49
(三)酚甲醛樹脂之合板引張膠合強度 51
三、液化竹材製備間苯二酚-酚甲醛樹脂 53
(一)間苯二酚-酚甲醛樹脂之基本性質 53
(二)間苯二酚-酚甲醛樹脂之木材膠合強度 54
伍、結 論 57
參考文獻 58
附 錄 63
作者簡介 .......................................................................................................69
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