Effects of nano particle preservative materials on combustion properties of some wood species

Wood materials which are renewable, lightweight, widely used in interior and exterior decoration and easy to process is a source of raw materials. Wood materials also has high mechanical resistance and aesthetic appearance. However, the wood material has some negative features. For example, wood materials can be faced with insect or fungal destruction due to its natural structure. Wood materials also has poor endurance to sun, moisture and fire. To prevent these negative aspects, one of the widely used protection method is treating with various chemicals and top-level processings with layer maker materials. It is known that boron, ammonium and nitrogenous compounds which are used as a fire inhibitor today cause an increase in the hygroscopicity of the wood material. Nanotechnology is used in computer science, robotics, surface coating and nano-composite production. Thanks to the size of the nanomaterials used in the study, it is thought that nanomaterials will penetrate the wood material more deeply and it will decrease the necessity of being washed by dispersing homogeneously. This study was conducted to determine the combustion properties of nano hexagonal boron nitride impregnated wood material. In this study, pine (Pinus sylvestris Lipsky), Eastern spruce (Picea orientalis) and Anatolian chestnut (Castanea sativa Mill) from broadleaf trees, which are commonly used in the woodworking industry, were selected. They impregnated with hexagonal boron nitride (h-BN), which has %1.5 concentration, considering ASTM-D 1413-76 standards. In order to measure the combustion properties of the test samples, measurements were made in the combustion tester following ASTM E 160–50 (1975). In the result of study, temperatures of burning by fire, burning by itself and burning as a cinder, weight loss in combustion, decay time and total burning time are determined. As a result, the highest amount of retention was measured in spruce and the lowest amount of retention was measured in Anatolia chestnut. According to samples, h-BN implementation caused increasing temperatures of burning by itself and burning by fire. According to samples of temperatures of burning as a cinder, temperatures of spruce and chestnut has increased and temperature of pine has decreased with the implementation of h-BN. According to samples of decay time, when h-BN has implemented, it is observed that decay time has increased and also total burning time has increased in all samples but pine. In accordance with weight loss in combustion, when h-BN has implemented, it is identified that spruce and pine became stronger but chestnut became weaker.