浅色免漆地板表板的工艺研究

Process Study of Light-coloured Lacquer-free Flooring Skins

以低分子量酚醛树脂为主体,加入三聚氰胺甲醛尿素树脂共混浸渍改性地板表板,研究出了三聚氰胺甲醛尿素树脂共混改性酚醛树脂(改性酚醛树脂A)最优制备工艺以及浅色免漆地板最佳浸渍工艺参数,结果表明:当三聚氰胺甲醛尿素树脂添加比40%,三聚氰胺尿素摩尔比1∶1,苯酚甲醛摩尔比1∶2时,制备出的改性酚醛树脂A,浸渍处理后白度值降低为4.3,浅化地板表板效果最佳。改性酚醛树脂A浸渍后的地板表板相比于未浸渍的地板表板硬度提高了78%,对比传统酚醛树脂浸渍的地板表板提升了45%,改性酚醛树脂A表面耐磨性能比传统酚醛树脂增加37.5%,以上均符合GB/T 18103-2013《实木复合地板》的要求。本研究通过对地板表板进行改性,使其表面颜色更浅、耐磨性更好,同时省去了淋漆工序,简化了三层实木复合地板的制备工艺,降低了生产成本,对指导工厂实际生产具有重要意义。

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.