TY  - EJOU
AU  - Zhang, Bengang 
AU  - Pizzi, Antonio 
AU  - Petrissans, Mathieu 
AU  - Petrissans, Anelie 
AU  - Colin, Baptiste 

TI  - A Melamine–Dialdehyde Starch Wood Particleboard Surface Finish without Formaldehyde
T2  - Journal of Renewable Materials

PY  - 2023
VL  - 11
IS  - 11
SN  - 2164-6341

AB  - Melamine-dialdehyde starch resins used for wood surface finishes have been developed. The reaction of melamine
with dialdehyde starch has been shown to occur by FTIR and MALDI ToF spectrometry, with several oligomer
species due to the reaction of the two materials being identified, and the resin thermal stability was studied by
thermogravimetric analysis. The resins were prepared by two different procedures when it was realized that dialdehyde starch is sensitive to too high a temperature for prolonged times. The melamine-dialdehyde starch resins
were applied on particleboard supports as a direct liquid surface finish and a resin-impregnated paper. The surface finishes were tested for adhesion by the cross-cut test, their initial sessile drop contact angle, and the contact
angle evolution as a function of time. The best results were obtained by the resins catalyzed by 2% ammonium
sulfate and applied to the support surface as a resin-impregnated paper hot pressed for 3 min at 200°C, although
the results at 180°C also looked promising.
KW  - Melamine-dialdehyde starch; resins; wood surface finishes; FTIR; MALDI ToF

DO  - 10.32604/jrm.2023.028888