| Popis: |
In this study, the surfaces of MDF were coated with a mixture of calcite, fire retardant (FR) and glue. Then the properties of MDF boards combustion resistance were investigated. Borax and muscovite, known as flame retardants, were added to the mixture at 1%, 3% and 5% relative to the oven dry weight of calcite. The burning tests of the samples were carried out according to ASTM E 69 standard so that the combustion characteristics could be determined. The weight loss, temperature, O2, CO and NO gas emissions quantities of the test samples were measured. The measurements were recorded every 30 seconds. Borax had the most positive effect on weight loss (74.5%) and O2 amount (20.5%), while muscovite 5% chemistry had a greater effect on temperature (289 oC) and NO amount (342 ppm). Borax and muscovite used in surface coating have been positively influenced on burning performance depending on addition rate. |
