Synthesis and Properties of Melamine Modified Urea Formaldehyde Resin for Impregnation Under New Process

Zhiyong Zheng; Huaihao Chen; Kaijie Zheng; Qi Li; An Mao

doi:doi:10.11648/j.ijmsa.20221101.12

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Synthesis and Properties of Melamine Modified Urea Formaldehyde Resin for Impregnation Under New Process

Zhiyong Zheng, Huaihao Chen, Kaijie Zheng, Qi Li, An Mao

Published in International Journal of Materials Science and Applications (Volume 11, Issue 1)

Received: 30 December 2021 Accepted: 11 January 2022 Published: 25 January 2022

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Abstract

In this paper, the basic properties of UF and UMF resins for impregnation under conventional and new processes were compared, and their chemical structures were characterized by ¹³C NMR. The effects of synthetic process and melamine addition on the bonding strength and formaldehyde emission of UF and UMF resins were studied. The resin synthesized by the new process has higher linear and methylene ether bond content, relatively lower methylene content, longer curing time and storage life and lower free formaldehyde content than the conventional resin; When melamine was added at the initial stage of UF resin synthesis reaction, it did not significantly change the total amount of methylene ether and hydroxymethyl in the resin system, but the content of class I hydroxymethyl increased and the content of class II hydroxymethyl decreased. The reason may be that the added melamine and urea react not only with the remaining formaldehyde in the system, but also with the formaldehyde removed from hydroxymethyl due to dehydroxylation reaction, Hydroxymethylmelamine and monobasic substituted urea are produced. At this time, about 50% of melamine still exists in UMF resin in the form of free or low hydroxymethylate, and does not participate in the formation of the main structure of the resin. Melamine was added in the early stage of the reaction. The modified resin bonded plywood has high bonding strength and low formaldehyde emission.

Published in	International Journal of Materials Science and Applications (Volume 11, Issue 1)
DOI	10.11648/j.ijmsa.20221101.12
Page(s)	9-14
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Melamine Modified Urea Formaldehyde Resin, Impregnation, New Process, Synthesis

References

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[2]	X. Li, J. Luo, J. Li, Q. Gao. Effects of diatomite inorganic fillers on the properties of a melamine–urea–formaldehyde resin. Journal of Applied Polymer Science, 133 (41): 44095-44103, 2016.
[3]	A. Mao, E. B. Hassan, and M. G. Kim, Investigation of low mole ratio UF and UMF resins aimed at lowering the formaldehyde emission potential of wood composite boards. BioResources, 8 (2), 2453-2469, 2013.
[4]	A. Mao, E. B. Hassan, and M. G. Kim, Low mole ratio UF and UMF resins entailing uron-type methylene-ether groups and their low formaldehyde emission potentials. BioResources, 8 (2), 2470-2486, 2013.
[5]	A. Mao, E. B. Hassan, and M. G. Kim, Low mole ratio urea-melamine-formaldehyde resins entailing increased methylene-ether group contents and their formaldehyde emission potentials of wood composite boards. BioResources, 8 (3), 4659-4675, 2013.
[6]	A. Mao, E. B. Hassan, and M. G. Kim, The effects of adding melamine at different resin synthesis points of low mole ratio urea-melamine-formaldehyde (UMF) resins. BioResources, 8 (4), 5733-5748, 2013.
[7]	Laza, J. M., Julian, C. A., Larrauri, E., Rodriguez, M., and Leon, L. M. (2019). “Thermal scanning rheometer analysis of curing kinetic of an epoxy resin: 2. An amine as curing agent,” Polymer 40 (1), 35-45.
[8]	Oh, Y. S. (2009). “Evaluation of melamine-modified urea-formaldehyde resin binders for particleboard,” Forest Prod. J. 49 (11-12), 31-34.
[9]	A. Mao, W. Xu, E. Xi, Q. Li, and H. Wan, Evaluation of phenol-formaldehyde resins modified and blended with pyrolysis bio-oil for plywood. Forest Products Journal, 68 (2), 113-119, 2018.
[10]	Young No, B., and Kim, M. G. Curing of low level melamine-modified urea-formaldehyde particleboard binder resins studied with dynamic mechanical analysis (DMA), Journal of Applied Polymer Science 97 (1), 377-389, 2005.
[11]	P. Qu, H. Huang, G. Wu, E. Sun, and Z. Chang. Effects of hydrolysis degree of soy protein isolate on the structure and performance of hydrolyzed soy protein isolate/urea/formaldehyde copolymer resin. Journal of Applied Polymer Science, 132 (7): 41469-41477, 2015.
[12]	P. Qu, H. Huang, G. Wu, E. Sun, and Z. Chang. The effect of hydrolyzed soy protein isolate on the structure and biodegradability of urea–formaldehyde adhesives. Journal of Adhesion Science and Technology, 29 (6): 502-517, 2015.
[13]	L. C, Y. Zhang, and X. N. Li. A high-performance bio-adhesive derived from soy protein isolate and condensed tannins. RSC Advances, 7 (34): 21226-21233, 2017.
[14]	P. Wei, X. Rao, J. Yang, Y. Guo, H. Chen, Y. Zhang, S. Chen, X. Deng, and X. Wang, Hot pressing of wood-based composites: a review. Forest Products Journal, 66 (7/8): 419-427, 2016.
[15]	Young No, B., and Kim, M. G. Evaluation of melamine-modified urea-formaldehyde resins as particleboard binders, Journal of Applied Polymer Science, 106 (6), 4148-4156, 2007.

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APA Style

Zhiyong Zheng, Huaihao Chen, Kaijie Zheng, Qi Li, An Mao. (2022). Synthesis and Properties of Melamine Modified Urea Formaldehyde Resin for Impregnation Under New Process. International Journal of Materials Science and Applications, 11(1), 9-14. https://doi.org/10.11648/j.ijmsa.20221101.12

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ACS Style

Zhiyong Zheng; Huaihao Chen; Kaijie Zheng; Qi Li; An Mao. Synthesis and Properties of Melamine Modified Urea Formaldehyde Resin for Impregnation Under New Process. Int. J. Mater. Sci. Appl. 2022, 11(1), 9-14. doi: 10.11648/j.ijmsa.20221101.12

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AMA Style

Zhiyong Zheng, Huaihao Chen, Kaijie Zheng, Qi Li, An Mao. Synthesis and Properties of Melamine Modified Urea Formaldehyde Resin for Impregnation Under New Process. Int J Mater Sci Appl. 2022;11(1):9-14. doi: 10.11648/j.ijmsa.20221101.12

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@article{10.11648/j.ijmsa.20221101.12,
  author = {Zhiyong Zheng and Huaihao Chen and Kaijie Zheng and Qi Li and An Mao},
  title = {Synthesis and Properties of Melamine Modified Urea Formaldehyde Resin for Impregnation Under New Process},
  journal = {International Journal of Materials Science and Applications},
  volume = {11},
  number = {1},
  pages = {9-14},
  doi = {10.11648/j.ijmsa.20221101.12},
  url = {https://doi.org/10.11648/j.ijmsa.20221101.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20221101.12},
  abstract = {In this paper, the basic properties of UF and UMF resins for impregnation under conventional and new processes were compared, and their chemical structures were characterized by 13C NMR. The effects of synthetic process and melamine addition on the bonding strength and formaldehyde emission of UF and UMF resins were studied. The resin synthesized by the new process has higher linear and methylene ether bond content, relatively lower methylene content, longer curing time and storage life and lower free formaldehyde content than the conventional resin; When melamine was added at the initial stage of UF resin synthesis reaction, it did not significantly change the total amount of methylene ether and hydroxymethyl in the resin system, but the content of class I hydroxymethyl increased and the content of class II hydroxymethyl decreased. The reason may be that the added melamine and urea react not only with the remaining formaldehyde in the system, but also with the formaldehyde removed from hydroxymethyl due to dehydroxylation reaction, Hydroxymethylmelamine and monobasic substituted urea are produced. At this time, about 50% of melamine still exists in UMF resin in the form of free or low hydroxymethylate, and does not participate in the formation of the main structure of the resin. Melamine was added in the early stage of the reaction. The modified resin bonded plywood has high bonding strength and low formaldehyde emission.},
 year = {2022}
}

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TY  - JOUR
T1  - Synthesis and Properties of Melamine Modified Urea Formaldehyde Resin for Impregnation Under New Process
AU  - Zhiyong Zheng
AU  - Huaihao Chen
AU  - Kaijie Zheng
AU  - Qi Li
AU  - An Mao
Y1  - 2022/01/25
PY  - 2022
N1  - https://doi.org/10.11648/j.ijmsa.20221101.12
DO  - 10.11648/j.ijmsa.20221101.12
T2  - International Journal of Materials Science and Applications
JF  - International Journal of Materials Science and Applications
JO  - International Journal of Materials Science and Applications
SP  - 9
EP  - 14
PB  - Science Publishing Group
SN  - 2327-2643
UR  - https://doi.org/10.11648/j.ijmsa.20221101.12
AB  - In this paper, the basic properties of UF and UMF resins for impregnation under conventional and new processes were compared, and their chemical structures were characterized by 13C NMR. The effects of synthetic process and melamine addition on the bonding strength and formaldehyde emission of UF and UMF resins were studied. The resin synthesized by the new process has higher linear and methylene ether bond content, relatively lower methylene content, longer curing time and storage life and lower free formaldehyde content than the conventional resin; When melamine was added at the initial stage of UF resin synthesis reaction, it did not significantly change the total amount of methylene ether and hydroxymethyl in the resin system, but the content of class I hydroxymethyl increased and the content of class II hydroxymethyl decreased. The reason may be that the added melamine and urea react not only with the remaining formaldehyde in the system, but also with the formaldehyde removed from hydroxymethyl due to dehydroxylation reaction, Hydroxymethylmelamine and monobasic substituted urea are produced. At this time, about 50% of melamine still exists in UMF resin in the form of free or low hydroxymethylate, and does not participate in the formation of the main structure of the resin. Melamine was added in the early stage of the reaction. The modified resin bonded plywood has high bonding strength and low formaldehyde emission.
VL  - 11
IS  - 1
ER  -

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Author Information

Zhiyong Zheng

Lanling Jiesen Decoration Materials Co., Ltd, Linyi, China
Huaihao Chen

College of Forestry, Shandong Agricultural University, Taian, China
Kaijie Zheng

Lanling Jiesen Decoration Materials Co., Ltd, Linyi, China
Qi Li

College of Forestry, Shandong Agricultural University, Taian, China
An Mao

College of Forestry, Shandong Agricultural University, Taian, China

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Plain Text BibTeX RIS

APA Style

Zhiyong Zheng, Huaihao Chen, Kaijie Zheng, Qi Li, An Mao. (2022). Synthesis and Properties of Melamine Modified Urea Formaldehyde Resin for Impregnation Under New Process. International Journal of Materials Science and Applications, 11(1), 9-14. https://doi.org/10.11648/j.ijmsa.20221101.12

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ACS Style

Zhiyong Zheng; Huaihao Chen; Kaijie Zheng; Qi Li; An Mao. Synthesis and Properties of Melamine Modified Urea Formaldehyde Resin for Impregnation Under New Process. Int. J. Mater. Sci. Appl. 2022, 11(1), 9-14. doi: 10.11648/j.ijmsa.20221101.12

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AMA Style

Zhiyong Zheng, Huaihao Chen, Kaijie Zheng, Qi Li, An Mao. Synthesis and Properties of Melamine Modified Urea Formaldehyde Resin for Impregnation Under New Process. Int J Mater Sci Appl. 2022;11(1):9-14. doi: 10.11648/j.ijmsa.20221101.12

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@article{10.11648/j.ijmsa.20221101.12,
  author = {Zhiyong Zheng and Huaihao Chen and Kaijie Zheng and Qi Li and An Mao},
  title = {Synthesis and Properties of Melamine Modified Urea Formaldehyde Resin for Impregnation Under New Process},
  journal = {International Journal of Materials Science and Applications},
  volume = {11},
  number = {1},
  pages = {9-14},
  doi = {10.11648/j.ijmsa.20221101.12},
  url = {https://doi.org/10.11648/j.ijmsa.20221101.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20221101.12},
  abstract = {In this paper, the basic properties of UF and UMF resins for impregnation under conventional and new processes were compared, and their chemical structures were characterized by 13C NMR. The effects of synthetic process and melamine addition on the bonding strength and formaldehyde emission of UF and UMF resins were studied. The resin synthesized by the new process has higher linear and methylene ether bond content, relatively lower methylene content, longer curing time and storage life and lower free formaldehyde content than the conventional resin; When melamine was added at the initial stage of UF resin synthesis reaction, it did not significantly change the total amount of methylene ether and hydroxymethyl in the resin system, but the content of class I hydroxymethyl increased and the content of class II hydroxymethyl decreased. The reason may be that the added melamine and urea react not only with the remaining formaldehyde in the system, but also with the formaldehyde removed from hydroxymethyl due to dehydroxylation reaction, Hydroxymethylmelamine and monobasic substituted urea are produced. At this time, about 50% of melamine still exists in UMF resin in the form of free or low hydroxymethylate, and does not participate in the formation of the main structure of the resin. Melamine was added in the early stage of the reaction. The modified resin bonded plywood has high bonding strength and low formaldehyde emission.},
 year = {2022}
}

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TY  - JOUR
T1  - Synthesis and Properties of Melamine Modified Urea Formaldehyde Resin for Impregnation Under New Process
AU  - Zhiyong Zheng
AU  - Huaihao Chen
AU  - Kaijie Zheng
AU  - Qi Li
AU  - An Mao
Y1  - 2022/01/25
PY  - 2022
N1  - https://doi.org/10.11648/j.ijmsa.20221101.12
DO  - 10.11648/j.ijmsa.20221101.12
T2  - International Journal of Materials Science and Applications
JF  - International Journal of Materials Science and Applications
JO  - International Journal of Materials Science and Applications
SP  - 9
EP  - 14
PB  - Science Publishing Group
SN  - 2327-2643
UR  - https://doi.org/10.11648/j.ijmsa.20221101.12
AB  - In this paper, the basic properties of UF and UMF resins for impregnation under conventional and new processes were compared, and their chemical structures were characterized by 13C NMR. The effects of synthetic process and melamine addition on the bonding strength and formaldehyde emission of UF and UMF resins were studied. The resin synthesized by the new process has higher linear and methylene ether bond content, relatively lower methylene content, longer curing time and storage life and lower free formaldehyde content than the conventional resin; When melamine was added at the initial stage of UF resin synthesis reaction, it did not significantly change the total amount of methylene ether and hydroxymethyl in the resin system, but the content of class I hydroxymethyl increased and the content of class II hydroxymethyl decreased. The reason may be that the added melamine and urea react not only with the remaining formaldehyde in the system, but also with the formaldehyde removed from hydroxymethyl due to dehydroxylation reaction, Hydroxymethylmelamine and monobasic substituted urea are produced. At this time, about 50% of melamine still exists in UMF resin in the form of free or low hydroxymethylate, and does not participate in the formation of the main structure of the resin. Melamine was added in the early stage of the reaction. The modified resin bonded plywood has high bonding strength and low formaldehyde emission.
VL  - 11
IS  - 1
ER  -

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