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从制浆黑液中分离木素及木素-苯酚-甲醛(LPF)树脂制备的研究
引用本文:国婷,陈克利,杨淑蕙,李树村.从制浆黑液中分离木素及木素-苯酚-甲醛(LPF)树脂制备的研究[J].林产工业,1999(1).
作者姓名:国婷  陈克利  杨淑蕙  李树村
作者单位:天津轻工业学院!助教,天津,300222,天津轻工业学院!天津,300222,天津轻工业学院!天津,300222,天津轻工业学院!天津,300222
摘    要:用盐酸沉淀马尾松硫酸盐制浆黑液中的木素,经离心分离,干燥后制成本素粉末。然后用木素代替部分苯酚合成本素酚醛树脂,调制供胶合板用的胶粘剂,并进行压板试验。经分离木素后的黑液,CODcr和色度均大大下降,使黑液的污染负荷大大降低。木素型胶粘剂胶合的三层胶合板的胶合强度超过了国家标准规定的指标。

关 键 词:黑液  酸沉淀  缩聚  LPF树脂  胶合强度

Isolation of Lignin from Masson pine Kraft pulping black liqour and Preparation of Lignin-based Adhesives
Guo Ting, Chen Keli, Yang Shuhui, Li Shucai.Isolation of Lignin from Masson pine Kraft pulping black liqour and Preparation of Lignin-based Adhesives[J].China Forest Products Industry,1999(1).
Authors:Guo Ting  Chen Keli  Yang Shuhui  Li Shucai
Abstract:Masson pine kraft lignin (KL) was precipitated with HCl from the bra fi pulping waste liquor,and then was used to prepare lignin-based PF adhesives for plywood. After isolating the kraft lignin, the black liquor became clear,transparent,without bad smell and foam. CODcr and Colourity of the supernatant solution was much lower than those of the black liqour. The bond quality of LPF adhesives was compared with that of the phenol-formaldehyde (PF) adhesives in bonding Manchurian ash plywood and verified exceeding the requirement of national industrial standard.
Keywords:Kraft pulping waste liquor  Acid precipitation  Co-condensation  Lignin-based PF resin Bond quality  
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