Akademik Veri Yönetim Sistemi
JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI, 2024 (ESCI)
This study was carried out to determine the effect of acid rain on the hardness of varnishes used on wooden materials in outdoor weather conditions. For this purpose, sessile oak (Qiierciis petrae Liebl) and Scots pine (Pinus Sylevestris L.) woods, which are frequently used, were chosen as test materials. After the samples were covered with synthetic and water-based varnish according to ASTM-D-3023 principles, they were exposed to the effects of sulfuric and nitric acid solutions at different concentrations and different amounts in the test samples, surface hardness according to ASTM-D 4366 principles. According to the experimental results, the highest hardness resistance in terms of material type was determined as oak, synthetic varnish, 5% Na, 120 (I), and the lowest was determined as Scots pine, water-based varnish, 5% Sa, 150 (II). According to the binary interaction, it is highest in Sc+Sn, M+III, Sn+I, M+5N, Sn+5N, II+3N, and lowest in Sc+Sb, Sc+II, Sb+II, Sc+5S, Sb+3S was detected in II+5S. According to the trible interaction, it is highest in Sc+Sn+I, Sc+Sn+3N, M+II+5N, Sn+I+5N, and lowest in Sc+Sb+II, Sc+Sb+3S, Sc+II+. 5N was found in Sb+II+3S. In multiple interaction, the highest hardness value was obtained as Sc+Sn+I+3S (37.6) and the lowest was obtained as Sc+Sb+I+3S (10.0). Accordingly, taking into account the values found in this study in wooden materials such as wooden yachts, garden furniture, wooden bridges, wooden houses, benches, walking paths etc. may be beneficial in terms of their effects on varnish hardness.