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材料研究学报  2009, Vol. 23 Issue (3): 311-316    
  研究论文 本期目录 | 过刊浏览 |
离子液体与杉木粉对酚醛胶粘剂性能的影响
郭立颖;  史铁钧;  李忠;  段衍鹏
合肥工业大学化工学院 合肥 230009
Influence of ionic liquid and fir powder on properties of phenol-formaldehyde adhesive
GUO Liying;  SHI Tiejun;  LI Zhong;  DUAN Yanpeng
School of Chemical Engineering; Hefei University of Technology; Hefei 230009
引用本文:

郭立颖 史铁钧 李忠 段衍鹏. 离子液体与杉木粉对酚醛胶粘剂性能的影响[J]. 材料研究学报, 2009, 23(3): 311-316.
. Influence of ionic liquid and fir powder on properties of phenol-formaldehyde adhesive[J]. Chin J Mater Res, 2009, 23(3): 311-316.

全文: PDF(693 KB)  
摘要: 

制备了离子液体/杉木粉/酚醛树脂的复合胶粘剂, 用DSC、FTIR和TGA分别对其固化温度、化学结构及热稳定性进行测试分析, 研究了木粉和离子液体对复合胶粘剂性能的影响. 结果表明, 木粉能有效降低胶粘剂的游离醛含量, 离子液体可以大幅度提高胶粘剂的胶合性能. 与普通酚醛胶相比, 当离子液体与木粉质量比为10 : 1时, 复合胶粘剂游离醛从1.76%降低到0.24%, 拉伸剪切强度从2.16 MPa提高到5.39 MPa, 且固化后不龟裂, 透明度较高. TGA结果表明复合胶的热分解温度提高, 但残碳率降低. 分析了被离子液体溶解的木粉对游离醛的捕捉作用及离子液体对胶合性能的贡献.

关键词 有机高分子材料杉木粉离子液体酚醛树脂复合胶粘剂拉伸剪切强度    
Abstract

A kind of composite adhesive of the ionic liquid/fir powder/phenol-formaldehyde (PF) was prepared. Effects of the fir powder and ionic liquid on properties of the composite adhesive were investigated. Curing temperature, chemical structure and thermal stability of the composite adhesive were analyzed by DSC, FTIR and TGA, respectively. The results showed that the fir powder could decrease free formaldehyde effectively of the composite adhesive and the ionic liquid could increase the adhesive properties greatly. Free formaldehyde in the composite adhesive decreased from 1.76% to 0.24% compared to conventional PF adhesive, tensile shear strength increased from 2.16 MPa to 5.39 MPa when the mass ratio of the ionic liquid to fir powder was 10 : 1, and the cured composite adhesive had no crack and was also comparatively transparent. TGA indicated that initial thermal decomposition temperature of the composite adhesive was increased, but the content of residual carbon was decreased. Capture of the fir powder after dissolved in the ionic liquid for formaldehyde and contribution of the ionic liquid to the adhesive properties had been discussed.

Key wordsorganic polymer materials    fir powder    ionic liquid    phenol-formaldehyde resin    composite adhesive    tensile shear strength
收稿日期: 2008-11-28     
ZTFLH: 

O632

 
基金资助:

国家自然科学基金50773017资助项目.

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