PF和PUF树脂分子结构对比研究  

Comparison of the Molecular Structure between Phenol-formaldehyde and Phenol-urea-formaldehyde Resins

作　　者：杜官本[1] 雷洪[1] PIZZI Antonio 

机构地区：[1]西南林业大学材料工程学院,云南昆明650224 [2]国家高级土木工程学院,法国南锡第一大学,埃皮纳勒法国88000

出　　处：《林产化学与工业》2013年第1期27-31,共5页Chemistry and Industry of Forest Products

基　　金：国家林业局推广项目(2010-46);国家自然科学基金资助项目(30930074)

摘　　要：为了判断苯酚-尿素-甲醛(PUF)树脂中原料共缩聚反应是否发生,并确认共缩聚分子形成特点,借助13C核磁共振(13C NMR)和基质辅助激光解析电离飞行时间质谱(MALDI-TOF-MS)两种主要分析仪器,对比研究了苯酚-甲醛(PF)树脂和PUF树脂的结构特点,结果证实了PUF树脂中苯酚、尿素和甲醛3种原料之间共缩聚反应的存在,认为PUF树脂结构以PF树脂为主体,且共缩聚结构主要形成于合成反应初期。To confirm the existence of co-condensation in phenol-urea-formaldehyde （PUF） resin and understand the development of molecular structure during the polymerization, the characteristic structure of PUF was analyzed based on the study of structure of phenol-formaldehyde （PF） resin with the help of two main instruments 13C NMR and MALDI-TOF-MS. Analysis results confirmed that the co-condensation among phenol, urea and formaldehyde indeed occurred and formed at the beginning of polymerization. The resuhs also confirmed that structure of copolymer mainly derived from PF resin.

关 键 词：PUF树脂 PF树脂 结构 共缩聚 

分 类 号：TQ35[化学工程]