TY - JOUR T1 - Sıvı Azot Ön İşlemi ve Boraks Uygulamasının Sarıçam Ağaç Malzemenin Yanma Özelliklerine Etkisi TT - The Effect of Liquid Nitrogen Pretreatment And Borax Application on The Combustion Properties of Scots Pine Wood Material AU - Özcan, Süleyman AU - Özcan, Cemal AU - Çalim, Osman PY - 2025 DA - October Y2 - 2025 DO - 10.17474/artvinofd.1650829 JF - Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi JO - AÇÜOFD PB - Artvin Çoruh University WT - DergiPark SN - 2146-1880 SP - 281 EP - 289 VL - 26 IS - 2 LA - tr AB - Bu çalışmada, sıvı azot ön işlemi uygulanan emprenyeli sarıçam (Pinus sylvestris L.) ağaç malzemenin yanma özellikleri üzerindeki etkileri araştırılmıştır. Bu amaç doğrultusunda şu numune grupları hazırlanmıştır: Ön işlem görmemiş emprenyesiz kontrol numuneleri, emprenye işlemi uygulanmış numuneler, sıvı azot ön işlemi uygulanmış numuneler, emprenye işlemi ve sıvı azot ön işlemi uygulanmış numuneler. Yanma testi ASTM-E 69 standardına göre gerçekleştirilmiştir. Kütle kaybı, gazların salınımı (CO ppm, NO ppm, % O2), baca ve yanma sıcaklığı farkları yanma sırasında her 30 saniye için belirlenmiştir. Veriler analiz edilmiş ve farklı uygulamaların etkinliği tartışılmıştır. Sonuç olarak sıvı azot ön işlemi ile muamele etmenin, ağaç malzemede sağlanan boraks retensiyonunu %30’ a yakın arttırdığı görülmüştür. Bu artış, kütle kaybını alevli yanma sonunda %7, yanma sonunda %2 azaltmıştır. Burada ağaç malzemenin içerisinde tutulan koruyucu ve yangın geciktirici madde miktarının artması hem emprenye kalitesini hem de ağaç malzemenin kullanım ömrünü pozitif etkilemiştir. KW - Sıvı azot KW - Boraks KW - Yanma KW - Sarıçam N2 - In this study, the effects of liquid nitrogen pretreatment on the combustion properties of impregnated Scots pine (Pinus sylvestris L.) wood were investigated. For this purpose, the following sample groups were prepared: Unpretreated and unimpregnated control samples, impregnated samples, liquid nitrogen pretreated samples, impregnated and liquid nitrogen pretreated samples. The combustion test was carried out according to ASTM-E 69 standard. Mass loss, gas release (CO ppm, NO ppm, % O2), flue and combustion temperature differences were determined for every 30 seconds during combustion. The data were analyzed and the effectiveness of different applications was discussed. As a result, it was seen that liquid nitrogen pretreatment increased the borax retention provided in the wood material by nearly 30%. This increase decreased the mass loss by 7% at the end of flaming combustion and by 2% at the end of combustion. Here, the increase in the amount of protective and fire retardant substances held in the wood material has a positive effect on both the impregnation quality and the service life of the wood material. CR - ASTM-D 1413-76 (1976) American Society for Testing and Materials. ASTM-D 1413-76: Standard test method of testing wood preservatives by laboratory soil block cultures. Annual Book of ASTM Standards. CR - ASTM-E 69 (2007) American Society for Testing and Materials. ASTM-E 69: Standard test methods for combustible properties of treated wood by the fire apparatus. ASTM Standards. CR - Aytaşkın A (2009) Çeşitli kimyasal maddelerle emprenye edilmiş ağaç malzemelerin bazı teknolojik özellikleri. Yüksek Lisans Tezi, Karabük Üniversitesi Fen Bilimleri Enstitüsü, Karabük. CR - Habaş AŞ (2023) Sıvı azot (nitrojen). https://www.habas.com.tr/Content/images/uploads/F300/GBF1_Azot(S%C4%B1v%C4%B1)rev_9.pdf CR - Hafızoğlu H, Yalınkılıç MK, Yıldız ÜC, Baysal E, Demirci Z, Peker H (1994) Türkiye bor kaynaklarının odun koruma (emprenye) endüstrisinde değerlendirilme imkânları. TÜBİTAK Projesi TOAG-875. CR - He S, Lin L, Fu F, Zhou Y, Fan M (2014) Microwave treatment for enhancing the liquid permeability of Chinese fir. BioResources, 9:1924–1938.https://doi.org/10.4067/S0718-221X2016005000013 CR - Keskin H, Süzer Ertürk N, Çolakoğlu MH, Korkut S (2013) Combustion properties of rowan wood impregnated with various chemical materials. International Journal of Physical Sciences, 8(21): 1128–1135. https://doi.org/10.5897/IJPS12.690 CR - Kurt R, Mengeloğlu F (2008) The effect of boric acid/borax treatment on selected mechanical and combustion properties of poplar laminated veneer lumber. Wood Research, 53(3): 113–120. https://www.woodresearch.sk/wood_research/WR_2008_53_3_113_120.pdf CR - Kurt Ş, Özcan S, Yapıcı F, Likos E (2012) Dimensional stability of Uludağ fir wood treated with liquid nitrogen after the steam test. Journal of Forestry Faculty of Kastamonu University, 12(31). https://doi.org/dergipark.org.tr/tr/download/article-file/159569 CR - Kurt Ş, Yörür H, Özcan S, Korkmaz M, Dönmez Y, Günay MY (2014) Processes to increase retention in materials of wood whose impregnation is difficult, and system design. In I. International Industrial Design Engineering Symposium (ISIDE14) (pp. 1–8). Karabük, Turkey. CR - Kurt Ş (2022) Effects of liquid nitrogen in hardly impregnable fir wood. Wood Research, 67(1): 123–133. https://doi.org/10.37763/wr.1336-4561/67.1.123133 CR - Lu Y, Sun Q, Yang D, She X, Yao X, Zhu G, Liu Y, Zhao H, Li J (2012) Fabrication of mesoporous lignocellulose aerogels from wood via cyclic liquid nitrogen freezing–thawing in ionic liquid solution. Journal of Materials Chemistry, 22(27):13548–13557. https://doi.org/10.1039/c2jm31310c CR - Özcan C, Kurt Ş, Esen R, Korkmaz M (2016) The determinate combustion properties of fir wood impregnated with fire-retardants. The Online Journal of Science and Technology, 6(3): 77-82. https://tojned.net/journals/tojsat/volumes/tojsat-volume06-i03.pdf CR - Seo HJ, Hwang W, Lee MC (2017) Fire properties of Pinus densiflora utilizing fire-retardant chemicals based on borated and phosphorus (I)-Combustion characteristics. BioResources, 12(3): 5417–5427. https://doi.org/10.15376/biores.12.3.5417-5427 CR - Stepina I, Zheglova Y (2023) Pyrolysis of pine wood in the presence of boron–nitrogen compounds. Materials, 16(19): 6353. https://doi.org/10.3390/ma16196353 CR - TS 2471 (1976) Turkish Standard Institute. TS 2471: Wood-Determination of moisture content for physical and mechanical tests. TSE Standards. CR - TS 2472 (1976) Turkish Standard Institute. TS 2472: Wood-Determination of density for physical and mechanical tests. TSE Standards. CR - Wu G, Xu M (2014) Effects of boron compounds on the mechanical and fire properties of wood-chitosan and high-density polyethylene composites. BioResources, 9(3): 4173–4193. https://doi.org/10.15376/biores.9.3.4173-4193 CR - Yapıcı F, Uysal B, Kurt Ş, Esen R, Özcan C (2011) Impacts of impregnation chemicals on finishing process and combustion properties of oriental beech (Fagus orientalis L.) wood. BioResources, 6(4): 3933–3943. https://doi.org/10.15376/biores.6.4.3933-3943 CR - Yörür H, Kayahan K, Günay MN, Altun S (2017) The effects of liquid nitrogen treatment on the some physical and mechanical properties of Scots pine and oriental spruce wood. Turkish Journal of Forestry, 18(4): 309–313. https://doi.org/10.18182/tjf.341516 CR - Yörür H, Kayahan K (2018) Improving impregnation and penetration properties of refractory woods through cryogenic treatment. BioResources, 13(1): 1829–1842. https://doi.org/10.15376/biores.13.1.1829-1842 CR - Yu L, Cai J, Hui L, Lu F, Qin D, Fei B (2017) Effects of boric acid and/or borax treatments on the fire resistance of bamboo filament. BioResources, 12(3): 5296–5307. https://doi.org/10.15376/biores.12.3.5296-5307 CR - Yüksel M, Baysal E, Toker H, Sitki M, Şimşek H, Act A (2014) Combustion characteristics of oriental beech wood impregnated with commonly used borates. Journal of Materials Science and Engineering,4(2):45–52. https://www.hrpub.org/download/20140305/MS2-1340163.pdf CR - Zhao L, Lu J, Zhou Y, Jiang J (2015) Effect of low temperature cyclic treatments on modulus of elasticity of birch wood. BioResources, 10(2): 2318–2327. https://doi.org/10.15376/biores.10.2.2318-2327 CR - Zhu H, Luo W, Ciesielski PN, Fang Z, Zhu JY, Henriksson G, Himmel ME, Hu L (2016) Wood-derived materials for green electronics, biological devices, and energy applications. Chemical Reviews, 116(16):9305–9374 https://doi.org/10.1021/acs.chemrev.6b00225 UR - https://doi.org/10.17474/artvinofd.1650829 L1 - https://dergipark.org.tr/en/download/article-file/4658774 ER -