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林业科学 ›› 2009, Vol. 12 ›› Issue (8): 124-128.doi: 10.11707/j.1001-7488.20090822

• 论文 • 上一篇    下一篇

PMUF树脂胶黏剂的制备与性能

高振忠1廖峰1,2邓世兵1郑振杰1   

  1. 1.华南农业大学林学院广州 510642; 2.华南理工大学材料科学与工程学院广州 510640
  • 收稿日期:2009-03-24 修回日期:1900-01-01 出版日期:2009-08-25 发布日期:2009-08-25
  • 基金资助:
     

Preparation and Properties of PMUF Resin Adhesive

Gao Zhenzhong1,Liao Feng1,2,Deng Shibing1,Zheng Zhenjie1   

  1. 1.College of Forestry, South China Agricultural UniversityGuangzhou 510642;2. College of Materials Science and Engineering, South China University of TechnologyGuangzhou 510640
  • Received:2009-03-24 Revised:1900-01-01 Online:2009-08-25 Published:2009-08-25
  • Supported by:
     

摘要:

以尿素和三聚氰胺作为酚醛树脂改性单体制备苯酚-三聚氰胺-尿素-甲醛(PMUF)树脂胶黏剂,研究甲醛、苯酚、尿素、三聚氰胺及氢氧化钠用量对PMUF树脂胶黏剂性能的影响,并采用DSC和13C-NMR对其进行表征。结果表明: PMUF树脂游离甲醛含量低,能满足耐水、耐候性能要求较高的人造板产品的生产。当甲醛、苯酚、尿素、三聚氰胺、NaOH的摩尔比为3.1∶1∶0.7∶0.3∶0.5时胶黏剂性能最佳,其最佳固化温度为135.5 ℃。

关键词: 酚醛, 尿素, 三聚氰胺, PMUF树脂, 胶黏剂

Abstract:

Phenol-melamine-urea-formaldehyde(PMUF) resin adhesive was prepared by adopting urea and melamine as the modified monomer for phenol formaldehyde resin. The effects of the molar ratio of folmaldehyde,phenol,urea, melamine and sodium hydroxide on performance of PMUF resin adhesive were studied. It was characterized by DSC and13C-NMR. The results indicate that the PMUF can reduce the content of free formaldehyde, and it can make wood-based panel with high water resistance and weatherability. The properties of PMUF resin adhesive are best when the molar ratio is 3.1∶1∶0.7∶0.3∶0.5 (formaldehyte∶phenol∶urea∶melamine∶NaOH) and the best curing temperature is 135.5 ℃.

 

Key words: phenol, urea, melamine, PMUF resin, adhesive

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