[1]吴志刚,张本刚,梁坚坤,等. 大豆蛋白-三聚氰胺-尿素-甲醛树脂胶黏剂固化剂的研究[J].西北林学院学报,2019,34(5):212-217.[doi:10.3969/j.issn.1001-7461.2019.05.33]
 WU Zhi-gang,ZHANG Ben-gang,LIANG Jian-kun,et al. Development of Curing Agent of Soy Protein-Melamine-Urea-Formaldehyde (SMUF) Resin[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2019,34(5):212-217.[doi:10.3969/j.issn.1001-7461.2019.05.33]
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 大豆蛋白-三聚氰胺-尿素-甲醛树脂胶黏剂固化剂的研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第34卷
期数:
2019年第5期
页码:
212-217
栏目:
出版日期:
2019-09-30

文章信息/Info

Title:
 Development of Curing Agent of Soy Protein-Melamine-Urea-Formaldehyde (SMUF) Resin
文章编号:
1001-7461(2019)05-0212-06
作者:
 吴志刚12张本刚1梁坚坤3席雪冬1雷洪1余丽萍2周晓剑1*
 (1.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;2.贵州大学 林学院,贵州 贵阳 550025;3.凯里学院,贵州 黔东南 556011)
Author(s):
 WU Zhi-gang12ZHANG Ben-gang1LIANG Jian-kun3XI Xue-dong1LEI Hong1YU Li-ping2ZHOU Xiao-jian1*
 (1.Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products,Southwest Forestry University,Kunming 650224,Yunnan China; 2.College of Forestry,Guizhou University,Guiyang 550025,Guizhou,China; 3.Kaili University,Qiandongnan 556011,Guizhou,China)
关键词:
 大豆蛋白-三聚氰胺-尿素-甲醛树脂固化剂胶合性能固化特征热性能
Keywords:
 soy protein-melamine-urea-formaldehyde resin (SMUF) curing agent bonding performance curing behavior thermal performance
分类号:
S781.65
DOI:
10.3969/j.issn.1001-7461.2019.05.33
文献标志码:
A
摘要:
 以大豆蛋白降解液、三聚氰胺、尿素和高浓度甲醛为原料,合成了一种低摩尔比的大豆蛋白-三聚氰胺-尿素-甲醛共缩聚树脂胶黏剂(SMUF)。选用(NH4)2SO4、(NH4)2S2O8、(NH4)2HPO4和H3PO4作为SMUF树脂的固化剂,研究了固化剂对SMUF树脂基本理化性能的影响。结果表明:1)传统固化剂(NH4)2SO4不能使SMUF树脂充分固化,最终树脂胶合强度低、耐水性差,固化后的胶层断面疏松、多孔;2)H3PO4和(NH4)2S2O8属于中强酸体系,两者均能一定程度加速SMUF树脂的固化,树脂胶合强度和耐水性均得到改善,固化温度显著降低,固化放热量有所提高;3)(NH4)2HPO4是一种缓冲型酸,其催化SMUF树脂的固化速度较为均匀,树脂综合性能较优,树脂的胶合强度和耐水性较好,固化温度也有所降低,树脂交联程度高,树脂固化层断面相对较为均匀。
Abstract:
 A soy protein-melamine-urea-formaldehyde resin with lower molar ratio was prepared by using soy protein degradation fluid,melamine,urea and high concentration formaldehyde.(NH4)2SO4,(NH4)2S2O8,(NH4)2HPO4 and H3PO4 were as used to investigate the effect of these curing agents on the basci phycial-chemcial properties of SMUF resin.The results showed that 1) (NH4)2SO4 could not fully cure SMUF resin,the resultant resin had lower bonding strength,inferior water resistance,and loose and porous curing interface.2) H3PO4 and (NH4)2S2O8 belonged to medium strong acid system,they could accelerate the curing speed of SMUF resin in some extents.The bonding strength and water resistance were improved,although curing temperature decreased significantly,curing exothermic value increased.3) (NH4)2HPO4 was a buffering acid,the curing speed was very uniform.The resin performances,bonding strength,and water resistance were better.The curing temperature was lower and the resin curing interface was uniform.

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备注/Memo

备注/Memo:
 收稿日期:2018-12-31修回日期:2019-01-17
基金项目:国家自然科学基金(31800481,31660176、31870546);云南省教育厅科学研究基金项目(2017ZZX209);贵州省科技支撑项目(黔科合支撑[2019]2308和[2019]2325);贵州省林业厅项目(黔林科合[2017]14);西南林业大学校启动基金项目(111814)。
作者简介:吴志刚,男,博士,副教授,研究方向:森林资源综合利用。E-mail:wzhigang9@163.com
*通信作者:周晓剑,男,博士,副研究员,研究方向:木材胶黏剂及复合材料。Email:xiaojianzhou@hotmail.com
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