3성분계 난연성 도료의 최적조성비에 대한 실험적 연구

Abstract

The optimal composition of APP, PER, and MEL, which are for the expansion of ternary systems flame retardant paints, was explored. Dry film thickness test showed physical property as a coating paint. Measuring expansion of char layer and density loss by a gas emission eg. N2 and H2O, after exposure at 800 ℃ for 30 sec. represented intumescent properties. In addition, To test a synergistic effect in APP/PER/MEL system, TiO2 was investigated as dosage-dependent manners. We found out addition of TiO2 showed the increase of the char layer formation, the following conclusions were obtained.

(1) In the composition ratio of Ammonium poly phosphate: Pentaerythritol: Melamine(A1P1M1), as a result of comparison with the negative control (A0P1M1), the expandability increased 23.1 times when A2P1M1, and the expandability increased 30.55 times when A3P1M1, significantly increasing.

(2) It was observed that as the number of moles of Ammonium polyphosphate increased, the expandability increased and the density decreased.

(3) When the number of moles of pentaerythritol was increased, the degree of expansion decreased and the density tended to increase.

(4) The expansion degree with respect to the change in the number of moles of Melamine decreased, and the density tended to increase slightly.

(5) When the ratios of amounts of ternary systems material are the same, the change in the thickness of the coating film by TiO2 does not significantly change depending on the amount of TiO2 added.

(6) Where ratios of amounts of ternary systems materials are the same, the expansion degree with respect to the change in the number of moles of TiO2 slightly increased, but the density slightly decreased.