Process Study of Light-coloured Lacquer-free Flooring Skins.

In this study, low molecular weight phenolic resin was used as the main body, and melamine formaldehyde urea resin was added into the blending impregnation modified floor board. The optimal preparation process of melamine formaldehyde urea resin blending modified phenolic resin (modified phenolic resin A) and the optimal impregnation process parameters of light-colored no-paint floor were studied. The results showed that: when the ratio of melamine formaldehyde urea resin was 40%, the molar ratio of melamine urea was 1:1, and the molar ratio of phenol formaldehyde was 1:2, the modified phenolic resin A was prepared. After impregnation, the whiteness value was reduced to 4.3. Compared with the non-impregnated floor sheet, the hardness of the modified phenolic resin A impregnated floor sheet increased by 78%, compared with the traditional phenolic resin impregnated floor sheet increased by 45%. The surface wear resistance of modified phenolic resin A was 37.5% higher than that of traditional phenolic resin. All of the above conformed to requirements of the GB/T 18103--2013 "Solid Wood Composite Flooring". Through the modification of the floor table board, the surface color of the floor table board was lighter, and the wear resistance was better. Meanwhile, the spraying paint process could be removed, which simplified the three-layer solid wood composite floor preparation process and reduced the cost. The results were of great significance for guiding the actual production of the factory. [ABSTRACT FROM AUTHOR]