The Structure and Curing Acceleration of PMUF Resins with Sodium Carbonate

Zhen Zhong Gao; Feng Liao

doi:10.4028/www.scientific.net/AMR.181-182.287

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The Structure and Curing Acceleration of PMUF Resins with Sodium Carbonate
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 181-182The Structure and Curing Acceleration of PMUF...

The Structure and Curing Acceleration of PMUF Resins with Sodium Carbonate

Abstract:

The phenol-melamine-urea-formaldehyde (PMUF) cocondensed resin adhesive was prepared by using phenol, urea, melamine and formaldehyde as reactants. It was characterized by 13C NMR and the results indicated that the PMUF could reduce the content of free formaldehyde, and it could make wood-based panel with high water resistance and weatherability. Sodium carbonate (Na2CO3) was able to shorten the curing time by 40% when applied to the plywood process. The addition of Na2CO3 as the curing accelerator of a PMUF had little influence on the bonding strength of waterproof layer and could shorten the hot-press time.

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Advanced Materials Science and Technology, ICMST 2010

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Periodical:

Advanced Materials Research (Volumes 181-182)

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287-292

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.181-182.287

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Online since:

January 2011

Authors:

Zhen Zhong Gao, Feng Liao

Keywords:

Adhesive, Formaldehyde, Melamine, Phenol, Sodium Carbonate, Urea

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