[1]刘建武,郭 成,张 跃,等.纤维板用微游离醛脲醛树脂的制备工艺研究[J].常州大学学报(自然科学版),2016,(01):48-53.[doi:10.3969/j.issn.2095-0411.2016.01.010]
　LIU Jianwu,GUO Cheng,ZHANG Yue,et al.Study on Preparation Process of Urea-Formaldehyde Resin with Micro-Free Formaldehyde for Application in Fiber Board[J].Journal of Changzhou University(Natural Science Edition),2016,(01):48-53.[doi:10.3969/j.issn.2095-0411.2016.01.010]
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纤维板用微游离醛脲醛树脂的制备工艺研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2016年01期
页码:
48-53
栏目:
出版日期:
2016-01-28

文章信息/Info

Title:
Study on Preparation Process of Urea-Formaldehyde Resin with Micro-Free Formaldehyde for Application in Fiber Board
文章编号:
2095-0411(2016)01-0048-06
作者:
刘建武1; 2; 郭 成1; 张 跃2; 邱 俊3; 沈介发2; 严生虎2; 陈代祥2; 李春涛3
1. 南京工业大学 理学院,江苏 南京 211800; 2. 常州大学 制药与生命科学学院,江苏 常州 213164; 3. 南通广泰生化制品有限公司,江苏 海安 226600
Author(s):
LIU Jianwu1; 2;  GUO Cheng1;  ZHANG Yue2;  QIU Jun3;  SHEN Jiefa2;  YAN Shenghu2;  CHEN Daixiang2;  LI Chuntao3
1. College of Sciences,Nanjing Tech University,Nanjing 211800,China; 2. School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China; 3. Nantong Guangtai Biochemical Products Co. Ltd., Haian 226600, China
关键词:
脲醛树脂;  胶黏剂;  微游离醛
Keywords:
urea-formaldehyde resin;  adhesive;  micro free formaldehyde
分类号:
TQ 433
DOI:
10.3969/j.issn.2095-0411.2016.01.010
文献标志码:
A
摘要:
采用弱碱-弱酸-弱碱工艺,以尿素、甲醛为原料,二乙醇胺、三聚氰胺为改性剂,尿素与甲醛“分批加入,多点分段”控制反应过程,进行脲醛树脂游离甲醛含量减量化的实验。通过单因素实验,考察F/U物质的量比、pH、温度、改性剂等对脲醛树脂胶粘剂游离甲醛含量和性能的影响。结果表明,在甲醛/尿素物质的量比为1.2:1,加成反应pH为7.5～8.5,加成反应温度为90～95 ℃,缩聚反应pH为4.5～5.5,缩聚反应温度85～90 ℃条件下,添加0.5%(wt.)的二乙醇胺和3%(wt.)的三聚氰胺为改性剂,制得的环保型纤维板用脲醛树脂具有微甲醛释放、耐水性能好、无公害、污染小、绿色环保等特点,其性能技术指标达到E0级标准。
Abstract:
Weak alkali-weak acid-weak alkali process was used in this research. Using urea and formaldehyde as starting material, diethanolamine and melamine as modifier, urea-formaldehyde resin was synthesized by the process of “added in batches, multi-point section”, which was controlled to decrease the free formaldehyde. Individual factor experiments were carried out to study the influence of the F/U molar ratio, pH, temperature, modifier and so on. The result showed that, at optimized conditions when the mole ratio of formaldehyde upon urea at 1.2:1, the pH of addition reaction in 7.5-8.5, the addition temperature in 90-95 ℃, the pH of polycondensation in 4.5-5.5, the polycondensation temperature in 85-90 ℃, the respective amount of diethanolamine and melamine at 0.5% and 3%(wt.), the optimum condition was obtained with micro formaldehyde emission and good water-proof property. Finally, this process could reach pollution-free, green and friendly-environment for fiber board, the resin could reach the national E0 level standard of resin used for fiber board.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目:国家科技支撑计划课题(2011BAE19B02); 中国石油化工集团公司委托开发项目(LZ10018)。
作者简介:刘建武(1973—),男,新疆石河子人,博士生,主要从事有机化工与有机材料中的绿色合成工艺研究。
更新日期/Last Update: 2016-01-28