Abstract:

This paper aimed at the problem of the finish foil being easily affected with damp, took the melamine modified urea formaldehyde resin as the research object, studied the anti-moisture performance and the influencing factors of the finish foil. In the experiment, it found through the same temperature and moisture treatment and observation at definite-time, when the ratio of the melamine to urea of the resin is 1∶5,the anti-moisture performance is improved drastically; when the amount of the impregnation glue is 30% and 50% respectively, the process of absorbing moisture is different, the absorbing moisture velocity of the paper of high amount of the impregnation glue is fast; in different environmental moisture, the absorbing moisture ratio increased with the moisture improved. This paper also discussed the countermeasure when the finish foil uses and stores in different moisture environment.

Key words: Urea-melamine-formaldehyde co-condensed resin, Impregnation, Finish foil, Moisture-resistance