Дослідження впливу фосфорвмісних компонентів на властивості вогнезахисного покриття деревини

Abstract

The rheological properties of silicic acid sols with additions of a phosphate buffer solution with pH 6, 7, and 8 (volume fraction of 15, 20, and 25%) were studied. The highest survivability of the sol buffered with a pH 7 solution (volume fraction of the additive was 15%) was recorded. The fact of incorporation of phosphate ions in the gel structure was confirmed by the results of photometric determination by the molybdenum method. The 1st group of fire-resistant efficiency of silicophosphate coating obtained based on silica sol with additives of orthophosphate acid was established. It was determined that the best indicators of fire resistance are given by a single-layer coating of the studied composition.