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生物质化学工程

生物质化学工程 ›› 2011, Vol. 45 ›› Issue (5): 17-20.

• 研究报告 • 上一篇    下一篇

碱木质素-酚醛复合胶黏剂在竹胶板中的应用研究

庄晓伟1, 穆有炳2, 潘炘1, 章江丽1, 王春鹏2, 赵临五2   

  1. 1. 浙江省林业科学研究院 浙江省森林资源生物与化学利用重点实验室, 浙江 杭州 310023;2. 中国林业科学研究院 林产化学工业研究所; 国家林业局 林产化学工程重点开放性实验室; 江苏省生物质能源与材料重点实验室, 江苏 南京 210042
  • 收稿日期:2011-03-28 修回日期:1900-01-01 出版日期:2011-09-30 发布日期:2011-09-30

Applications of Alkali Lignin/Phenol-formaldehyde Resin in Bamboo Plywood

ZHUANG Xiao-wei1, MU You-bing2, PAN Xin1, ZHANG Jiang-li1, WANG Chun-peng2, ZHAO Lin-wu2   

  1. 1. Zhejiang Forestry Academy;Zhejiang Provincial Key Lab.of Biological and Chemical Utilizing of Forest Resources,Zhejiang Province, Hangzhou 310023, China;2. Institute of Chemical Industry of Forest Products,CAF; Key and Open Lab.on Forest Chemical Engineering,SFA; Key Lab.of Biomass Energy and Material,Jiangsu Province, Nanjing 210043, China
  • Received:2011-03-28 Revised:1900-01-01 Online:2011-09-30 Published:2011-09-30

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摘要： 采用羟甲基化碱木质素(HKLF)与酚醛树脂(PF)复合制备碱木质素-酚醛复合胶黏剂(KPF),研究了HKLF添加量对KPF性能的影响,并分析其在竹胶板中应用的可行性。结果表明:HKLF添加量为10 %~30 %的KPF生产的竹胶板性能优异,其静曲强度及其弹性模量、吸水厚度膨胀率及胶合强度等物理力学性能均符合LY/T 1574-2000 《混凝土模板用竹材胶合板》标准的B类竹材胶合板要求,与纯酚醛胶所制竹胶板的胶合性能相当,且对竹材浸胶量影响较小。HKLF添加量为40 %时,竹胶板干状横向静曲强度和吸水厚度膨胀率不达标。因此,HKLF添加量为10 %~30 %的KPF作为竹胶板用胶黏剂是可行的。

关键词: 碱木质素, 羟甲基化, 酚醛胶, 竹胶板

Abstract: The lignin-phenol-formaldehyde resin adhesive (KPF) was prepared by blending phenol-formaldehyde resin (PF) with alkali lignin modified by hydroxymethylation (HKLF). Effect of amount of lignin on performance of bamboo plywood was studied. The feasibility of alkali lignin-phenol-formaldehyde resin used in bamboo plywood was analyzed. The results showed that mechanical properties of bamboo plywood, such as modulus of rupture, modulus of elasticity, thickness swelling rate and bonding quality, met the standards of LY/T 1574-2000, when dose of hydroxymethylated lignin was 10 % to 30 %. Performance of bamboo plywood with KPF is almost the same as that of other similar products with PF. However, when dose of hydroxymethylated lignin was 40 %, modulus of rupture and thickness swelling rate did not meet standards. Therefore, KPF can be applied to bamboo plywood when dose of hydroxymethylated lignin was 10 % to 30 %.

Key words: alkali lignin, hydroxymethylated, phenol-formaldehyde adhesive, bamboo plywood

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