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تاثیر نانو ولاستونیت بر مقاومت به آتش و چسبندگی پوشش آکریلیک پایه آب در سطح چوب | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| مقاله 2، دوره 33، شماره 2 - شماره پیاپی 63، تیر 1397، صفحه 166-178 اصل مقاله (271.15 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijwpr.2018.114552.1429 | ||
| نویسندگان | ||
| حسین رنگ آور* 1؛ سعید خجسته خسرو2؛ مسعود تقی پور جاوی3 | ||
| 1دانشیار گروه صنایع چوب دانشگاه شهید رجایی | ||
| 2گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه تربیت مدرس، نور، مازندران | ||
| 3گروه صنایع چوب، دانشکده مهندسی عمران، دانشگاه تربیت دبیر شهید رجایی، | ||
| چکیده | ||
| در مطالعه حاضر اثر افزودن نانو ذرات ولاستونیت (casio3) به پوشش آکریلیک پایه آب بر قابلیت مقاومت به آتش و مقاومت چسبندگی پوشش مورد مطالعه قرار گرفت. نانو ولاستونیت با غلظت‌های 5/0، 5/1 و 5/2 درصد وزنی نسبت به جرم خشک پوشش آکریلیک با آن مخلوط شد. برای تثبیت نانو ذرات در بستر پوشش از دستگاه اولتراسونیک استفاده گردید. فرایند پوشش دهی نمونه‌ها با و بدون کاربرد نانو ولاستونیت در پوشش آکریلیک روی نمونه‌های چنار و نوئل صورت پذیرفت و ویژگیهای آنها شامل مقاومت به آتش و مقاومت چسبندگی مورد بررسی قرار گرفتند. نتایج نشان داد که افزودن نانو ولاستونیت تا 5/2 درصد به پوشش آکریلیک، اثر بسیار قابل توجهی بر بهبود مقاومت به آتش نمونه‌ها بخصوص تاخیراندازی زمان شعله‌وری گونه‌های نوئل و چنار با بهبود 258 و 184 درصدی نسبت به نمونه‌های شاهد داشته است. از طرف دیگر بررسی چسبندگی پوشش آکریلیک به سطح نمونه‌های چوبی حاکی از بهبود این ویژگی پوشش با افزودن نانو ولاستونیت بود. در مورد چسبندگی پوشش نیز بالاترین میزان این ویژگی در نانو پوشش حاوی بیشترین میزان نانو ذرات ولاستونیت مشاهده گردید. البته لازم به ذکر است که عملکرد نانو پوشش‌های حاوی 5/1 درصد نانو روی ویژگیهای مورد بررسی نیز در حد قابل قبولی بود. | ||
| کلیدواژه‌ها | ||
| نانو ولاستونیت؛ پوشش چوب؛ چنار و نوئل؛ تاخیر انداز آتش؛ مقاومت چسبندگی | ||
| عنوان مقاله [English] | ||
| The effect of nano wollastonite on the fire resistance and the adhesion properties of water based acrylic coating in wood surface | ||
| نویسندگان [English] | ||
| Saeed Khojasteh Khosro2؛ Masoud Taghipour Javy3؛ | ||
| 2Department of Wood and Paper Science and Technology, Faculty of Natural Resources, Tarbiat Modares University, Noor | ||
| 3Wood Science and Technology Department, Faculty of Civil Engineering, Shahid Rajaee Teacher Training University | ||
| چکیده [English] | ||
| The main objective of the current study was the investigation of the effect of adding the wollastonite nanoparticles (casio3) to the water based acrylic coating onto the fire resistance capability and adhesion strength of coating. The nano wollastonites with the concentrations of 0.5, 1.50, and 2.5 wt% were dispersed into the coating. Ultrasonic device was used to stabilize the nanoparticles into the substrates. The coating process was carried out with and without application of the nanoparticles on the surfaces of spruce and sycamore samples and their properties comprising the fire resistance and the adhesion strength were investigated. The obtained results showed that adding of nano wollastonite to the acrylic coating with the waight percent of 2.5% (w/w) had the significance effect onto the resistance of the samples to fire. In particluar, these effects was observed in cas of the retard time of ignition of the spruce and sycamore samples with the improvement values of 258 and 184 % compared with the control samples, respectively. Furthermore, the investigation of adhesion properties of coatings to the sample surface indicated that the applied nano wollastonites improved these properties of coatings. In case of the adhesion properties, however, the highest value of this properties was observed in the highest content of wollastonite nanoparticles. It should be noted that the performance of nanocomposite coating containing of the 1.5 wt% of nano onto investigated properties was also acceptable. | ||
| کلیدواژه‌ها [English] | ||
| Nano wollastonite, Wood coating, Spruce and sycamore, Fire retardant, Adhesion strength | ||
| مراجع | ||
|
-Chang, H., Kuo, Z.H., Tsai, K.C. and Chen, T.L., 2011. Analysis on properties of water-based fire-retardant nano-coatings. In Advanced Materials Research (Vol. 311, pp. 1985-1992). Trans Tech Publications. -Chin, J., Byrd, E., Martin, J. and Nguyen, T., 2005.Validation of the Reciprocity Law for Coating Photo degradation, J. Coat. Technol. Res., 2 (7): 499–508. -De Meijer, M. and Militz, H., 2000. Wet adhesion of low-VOC coatings on wood: a quantitative analysis. Progress in Organic Coatings, 38(3), 223-240. -Farhadinejad, Z., Ehsani, M., Khosravian, B. and Ebrahimi, G., 2012. Study of thermal properties of wood plastic composite reinforced with cellulose micro fibril and nano inorganic fiber filler. European Journal of Wood and Wood Products, 70(6): 823-828. -Ghofrani, M. and Khojasteh Khosro, S., 2014a. The effect of wood surface finishing quality on the adhesion strength of clear coat. Journal of Color Science technology, 7: 339-345. -Ghofrani, M. and Khojasteh Khosro, S., 2014b. The effect of surface fat removal in fatty wood on the adhesion strength of clear coating. Journal of Color Science and Technology,8(2) 101-107. -Ghofrani, M., Mirkhandouzi, F.Z. and Ashori, A., 2016b. Effects of extractives removal on the performance of clear varnish coatings on boards. Journal of Composite Materials, 50(21), 3019-3024. -Ghofrani, M., Samadi, E. and Khojasteh Khosro, S., 2016a. Heat treatment of wood and the investigation of its effect on surface wettability and adhesion strength of coating. Iranian Journal of Wood and Paper Science Research, 31(2): 362-373. -Girardi, F., Cappelletto, E., Sandak, J., Bochicchio, G., Tessadri, B., Palanti, S.E. and Di Maggio, R., 2014. Hybrid organic–inorganic materials as coatings for protecting wood. Progress in Organic Coatings, 77(2), 449-457. -Haghighi, A., Taghiyari, H.R. and Karimi, A.N., 2013. Study on fire-retardant properties of nano-wollastonite in fir wood (Abies alba). Iranian Journal of Wood and Paper Science Research, 28(2): 258-265. -Harada, T., Uesugi, S. and Masuda, H., 2006. Fire resistance of thick wood-based boards. Journal of Wood Science, 52(6): 544-551 -Humar, M., 2013. Influence of Norway spruce and European larch Heartwood ring-width on extractive content and durability. Wood Ind., 64: 79-85. -Jahan Latibari, A., 2007. Science and technology of adhesion for lignocellulosic substances, Daneshgahe azad eslami, Karaj, 348p. -Kasseney, B.D., Deng, T. and Mo, J., 2011 Effect of wood hardness and secondary compounds on feeding preference of Odontotermes formosanus (Isoptera: Termitidae). J Econ Entomol, 104:862–867. -Kaygin, B. and Akgun, E., 2008. Comparison of conventional varnishes with nanolake UV varnish with respect to hardness and adhesion durability, Int. J. Mol. Sci, 9: 476-485. -Kaygin, B. and Akgun, E., 2009. A nano-technological product: An innovative varnish type for wooden surfaces, Scientific Research and Essays, 4 (1): 1-7. -Khojasteh Khosro, S., 2014. Investigation on the effect of nano Zinc Oxide on physical properties of polyurethane clear coat in wooden furniture surfaces, degree of M.Sc, Shahid Rajaee Teacher Training University, Iran. -Khojasteh Khosro, S., Ghofrani, M. and Ganjaee Sari, M., 2015. The effect of adding zinc oxide nanoparticles on color change and adhesion strength of polyurethane coating on wood surface. Iranian Journal of Wood and Paper Science Research, 30(4): 690-704. -Khosravian, B., 2009. Evaluation of mechanical,physical,thermal and morphological properties ofhybrid composites and nano-hybrid compositespolypropylene/wood flour/wollastonit. Ms. Thesis,Tehran University.103pp. -Luyt, A.S., Dramicanin, M.D., Antic, Z. and Djokovic, V., 2009. Morphology, mechanical and thermal properties of composites of polypropylene and nanostructured wollastonite filler. Polymer testing, 28: 348-356. -Miszczyk, A. and Schauer, T., 2005. Electrochemical approach to evaluate the interlayer adhesion of organic coatings. Progress in Organic Coatings 52(4): 298-305. -Nikonova, N.S., Tikhomirova, I.N., Belyakov, A.V. and Zakharov, A.I., 2003. Wollastonite in silicate matrices. Glass and Ceramics, 60(9-10): 342-346. -Poshtiri, A.H., Taghiyari, H.R. and Karimi, A.N. 2014. Fire-retarding properties of nano-wollastonite in solid wood. Philippine Agricultural Scientist, 97(1). -Rangavar, H. and Alavi Seresht, S.A., 2015. Effect of nano-wollastonite, poly vinyl chloride and high density polyethylene polymers and board structure on fire resistance of particleboard made of pepper stalk and industrial wood. Iranian Journal of Wood and Paper Science Research, 30(3): 503-512. -Sow, C., Riedl, B. and Blanchet, P., 2011. UV-waterborne polyurethane-acrylate nanocomposite coatings containing alumina and silica nanoparticles for wood: mechanical, optical, and thermal properties assessment. Journal of Coatings Technology and Research, 8(2): 211-221. -Stark, N.M., White, R.H., Mueller, S.A. and Osswald, T.A., 2010. Evaluation of various fire retardants for use in wood flour-polyethylene composites. Polymer Degradation and Stability, 95: 1903-1910. -Taghiyari, H.R., Ghorbanali, M. and Tahir, P.M., 2014. Effects of the improvement in thermal conductivity coefficient by nano-wollastonite on physical and mechanical properties in medium-density fiberboard (MDF). BioResources, 9(3), 4138-4149. -Taghiyari, H.R., Rangavar, H. and Nouri, P., 2013b. Fire-retarding properties of nanowollastonite in MDF. European Journal of Wood and Wood Products, 71(5): 573-581. -Taghiyari, H.R., Mobini, K., Sarvari Samadi, Y., Doosti, Z., Karimi, F., Asghari, M., Jahangiri, A. and Nouri, P., 2013a. Effects of nano-wollastonite on thermal conductivity coefficient of medium-density fiberboard. Journal of Molecular Nanotechnology; 2:1 http://dx.doi.org/ 10.4172/ 23248777.1000106. -Taghiyari, H.T., 2012. Fire-Retarding Properties of Nano-Silver in Solid Woods.Wood Science and Technology, 46(5): 939 –952. -Tzakor-Rezaie, V., Najafi, A. and Sinaie, A., 2016. The effect of nano-wollastonite on bending properties and fire resistance of wood flour/polypropylene composite. Iranian Journal of Wood and Paper Science Research. 31:3, 425-434. (in Persian) | ||
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