[1]王辉,吴志刚,席雪冬,等. 新型三聚氰胺-尿素-甲醛树脂制备与研究(Ⅰ)——大豆蛋白水解液改性MUF[J].西北林学院学报,2016,31(1):260-264.[doi:10.3969/j.issn.1001-7461.2016.01.45]
 WANG Hui,WU Zhi-gang,XI Xue-dong,et al. Synthesis and Study of a New Melamine-urea-formaldehyde Resin(Ⅰ)——MUF Resin Modified by Degradated Soy-protein[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2016,31(1):260-264.[doi:10.3969/j.issn.1001-7461.2016.01.45]
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 新型三聚氰胺-尿素-甲醛树脂制备与研究(Ⅰ)——大豆蛋白水解液改性MUF()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第31卷
期数:
2016年第1期
页码:
260-264
栏目:
出版日期:
2016-01-31

文章信息/Info

Title:
 Synthesis and Study of a New Melamine-urea-formaldehyde Resin(Ⅰ)——MUF Resin Modified by Degradated Soy-protein
文章编号:
1001-7461(2016)01-0260-05
作者:
 王辉吴志刚席雪冬曹明郭晓申雷洪杜官本
 (西南林业大学 云南省木材胶黏剂及胶合制品重点实验室,云南 昆明 650224)
Author(s):
 WANG HuiWU Zhi-gangXI Xue-dongCAO MingGUO Xiao-shenLEI HongDU Guan-ben
(Wood Adhesives and Glued Products Key Laboratory of Yunnan Province,Southwest Forestry University,Kunming,Yunnan 650224,China)
关键词:
 三聚氰胺-尿素-甲醛树脂大豆蛋白结构性能游离甲醛
Keywords:
 MUF soy protein structure characteristic free formaldehyde
分类号:
Q946.86
DOI:
10.3969/j.issn.1001-7461.2016.01.45
文献标志码:
A
摘要:
 以三聚氰胺、大豆蛋白(SPI)降解液、尿素和甲醛为原料,合成了一种改性的三聚氰胺-尿素-甲醛树脂(MUF)。分析了改性后MUF的性能,并借助核磁共振(13C-NMR)、红外光谱(FT-IR)和动态热机械性能(DMA)分析改性后MUF的结构变化和热机械性能。结果表明:当加入10%SPI降解液时,合成的MUF机械性能最优,刨花板内结合强度和静曲强度分别提高30%和46%,游离甲醛含量降低21%。13C-NMR分析表明,加入SPI降解液,可以提高MUF树脂中的亚甲基桥键、亚甲基醚键和三聚氰胺与尿素共缩聚反应产生的亚甲基醚键含量,最终体系具有较高的缩聚度、交联度和较低的游离甲醛。FT-IR分析表明,改性后的MUF酰胺特征峰吸收谱带由明显双肩峰变成单肩峰,表明蛋白质降解液与MUF树脂发生了交联反应。DMA测试结果表明,以大豆蛋白降解液改性MUF,可以显著改善最终胶合产品的热机械性能。
Abstract:
 A new melamine-urea-formaldehyde(MUF) resin based on melamine,degraded soy-protein,urea and formaldehyde were prepared.The structure characteristics and thermal mechanical properties of this new MUF resin were studied by 13C-NMR,FT-IR and DMA.When addition amount of degraded soy protein was 10%,bonding strength and MOR of particleboard respectively increased by 30% and 46%,content of free formaldehyde decreased by 21%.13C-NMR results showed that,the contents of methylene bridges,methylene ether bond and ether bond formed by copolycondensation reaction between melamine and urea increased.Final resin system had high polycondensation and crosslinking degree,low free formaldehyde emission.The FT-IR results indicated that degraded soy protein reacted with MUF.The DMA results showed that this new MUF resin could improve the thermal mechanical performance of the final products.

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备注/Memo

备注/Memo:
 收稿日期:2015-03-22修回日期:2015-04-14
基金项目:林业公益性行业科研专项(201304505);“十二五”国家科技支撑计划项目(2012BAD24B03);云南省应用基础研究重点项目(2013FA038);云南省中青年学术带头人后备人才项目(2011HB024)。
作者简介:王辉,女,博士,研究方向:木材胶黏剂与木质复合材料。E-mail:1002469654@qq.com
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