AR—M—AR粉对脲醛树脂增强效果研究

A Study on Strengthening Effect by AR-M-AR powder for Urea Formaldehyde Resin

利用AR－M－AR粉对脲醛树脂（UF树脂）进行增强和降低游离甲醛释放量研究结果表明，由羟甲基化三聚氰胺和烷基间苯二酚制成的线型AR－M－AN粉能显著提高UF树脂胶合板的胶接强度，特别是胶合耐水性，并能明显地减少UF树脂胶合板的游离甲醛释放量。但是，对于在强酸性条件下合成的部分UF树脂添加AR－M－AR粉后胶接强度下降。

The effect of adding AR-M-AR powder to Urea Formaldehyde resins (UF) was investigated' The addition of a novo1ac type AR -M -AR powder made from methylolated melamine and alkylresorcinol could bing a considerable improvement in bonding properties of UF plywood,in water resistance,and the emission of formaldehyde from UF plywood while,the addition of the AR-M-AR powder to some strongacid catalyzed resins,the bonding strength was decreased.