Study of the synthesis parameters of a urea-formaldehyde resin synthesized according to alkaline-acid process

Goncalves Carolina; Pereira Joao; Paiva Nadia; Ferra Joao; Martins Jorge; Magalhaes Fernao; Barros-Timmons Ana; Carvalho Luisa

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Study of the synthesis parameters of a urea-formaldehyde resin synthesized according to alkaline-acid process

机译：根据碱性酸法合成尿素 - 甲醛树脂的合成参数研究

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This paper presents a study of two crucial synthesis parameters of the alkaline-acid process of UF resin synthesis: condensation formaldehyde/urea (F/U) molar ratio and U feed rate during the methylolation step. The differences in the polymeric structures and the performance of the ensuing resins on particleboards (PBs) properties were analyzed and compared with a standard resin. The molecular weight distribution of the resins was monitored by gel permeation chromatography/size exclusion chromatography (GPC/SEC) and the unreacted oligomers by high-performance liquid chromatography (HPLC). The PBs produced were analyzed following European standards for mechanical tests and formaldehyde emission. The data obtained were also submitted to a statistical analysis.

机译：本文介绍了UF树脂合成碱性酸工艺的两个关键合成参数：缩合甲醛/尿素（F / U）摩尔比和甲基解液期间的进料速率。分析了聚合物结构的差异及其在刨花板（PBS）性质上进行的性能，并与标准树脂进行比较。通过高效液相色谱（HPLC）通过凝胶渗透色谱/尺寸排阻色谱（GPC / SEC）和未反应的低聚物监测树脂的分子量分布。在欧洲机械试验标准和甲醛排放后分析生产的PBS。所获得的数据也提交到统计分析。

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来源
《International Journal of Adhesion & Adhesives》 |2020年第1期|共11页
作者
Goncalves Carolina; Pereira Joao; Paiva Nadia; Ferra Joao; Martins Jorge; Magalhaes Fernao; Barros-Timmons Ana; Carvalho Luisa;
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作者单位

Univ Porto Fac Engn LEPABE Rua Dr Roberto Frias S-N P-4200465 Porto Portugal;

Univ Porto Fac Engn LEPABE Rua Dr Roberto Frias S-N P-4200465 Porto Portugal;

Ind Quim SA EuroResinas P-7520195 Sines Portugal;

Ind Quim SA EuroResinas P-7520195 Sines Portugal;

Univ Porto Fac Engn LEPABE Rua Dr Roberto Frias S-N P-4200465 Porto Portugal;

Univ Porto Fac Engn LEPABE Rua Dr Roberto Frias S-N P-4200465 Porto Portugal;

Univ Aveiro Aveiro Inst Mat CICECO P-3810193 Aveiro Portugal;

Univ Porto Fac Engn LEPABE Rua Dr Roberto Frias S-N P-4200465 Porto Portugal;

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原文格式 PDF
正文语种 eng
中图分类胶粘剂工业;
关键词
Adhesives for wood; Resin-based composites; Wood and wood composites; Formaldehyde/urea (F/U) molar ratio; Urea (U) feed rate;

机译：木材粘合剂;基于树脂的复合材料;木材和木材复合材料;甲醛/尿素（F / U）摩尔比;尿素（U）饲料速率;

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专利

1. Study of the synthesis parameters of a urea-formaldehyde resin synthesized according to alkaline-acid process [J] . Goncalves Carolina, Pereira Joao, Paiva Nadia, International Journal of Adhesion & Adhesives . 2020,第1期

机译：根据碱性酸法合成尿素 - 甲醛树脂的合成参数研究
2. Synthesis and properties of rigid polyurethane foams synthesized from modified urea-formaldehyde resin [J] . Zhu Heng, Xu Shi-ai Construction and Building Materials . 2019,第MARa30期

机译：改性脲醛树脂合成硬质聚氨酯泡沫的合成及性能
3. Statistical evaluation of the effect of urea-formaldehyde resins synthesis parameters on particleboard properties [J] . Goncalves C., Pereira J., Paiva N. T., Polymer Testing . 2018,第期

机译：尿素 - 甲醛树脂合成参数对刨花板性能影响的统计评价
4. On the Study of Unstable Structure in the Synthesis of Urea-formaldehyde Resins [C] . LI Ai-ping, KAN Cheng-you, DU Yi, Proceedings of the 3rd World Congress on Adhesion and Related Phenomena(WCARP-III) . 2006

机译：脲醛树脂合成中不稳定结构的研究
5. Effects of melamine and ether contents on the curing and performance properties of urea-formaldehyde (UF) resins as binders for particleboard [D] . Mao, An 2013

机译：三聚氰胺和醚含量对用作刨花板粘合剂的脲醛树脂的固化和性能的影响
6. Modified Epoxy Resin Synthesis from Phosphorus—Containing Polyol and Physical Changes Studies in the Synthesized Products [O] . Jeong Beom Jang, Tae Hee Kim, Taeyoon Kim, 2019

机译：含磷的改性环氧树脂合成多元醇及其合成产物的物理变化研究
7. Study of the Influence of Technological Parameters on Generating Flat Part with Cylindrical Features in 3D Printing with Resin Cured by Optical Processing [O] . Aurel Tulcan, Mircea Dorin Vasilescu, Liliana Tulcan 2020

机译：用光学处理用树脂固化的三维印刷圆柱特征在圆柱形特征中产生扁平部件的影响研究
8. A Literature Review - Problem Definition Studies on Selected Toxic Chemicals. Volume 6. Occupational Health and Safety and Environmental Aspects of Urea-Formaldehyde Resins. [R] . Hsiao, S., Villaume, J. E. 1978

机译：文献综述 - 选择有毒化学品的问题定义研究。第6卷。尿素 - 甲醛树脂的职业健康和安全及环境方面。

Study of the synthesis parameters of a urea-formaldehyde resin synthesized according to alkaline-acid process

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