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مطالعه اثر حفاظتی نانو اکسید روی در مقابل هوازدگی چندسازه چوب-پلی پروپیلن | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| مقاله 3، دوره 37، شماره 1 - شماره پیاپی 78، فروردین 1401، صفحه 17-27 اصل مقاله (976.17 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijwpr.2021.353685.1666 | ||
| نویسندگان | ||
| داود رسولی* 1؛ حسین یوسفی2؛ مهدی مشکور2 | ||
| 1استادیار گروه تکنولوژی و مهندسی چوب، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، ایران | ||
| 2دانشیار گروه تکنولوژی و مهندسی چوب، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، ایران | ||
| چکیده | ||
| در این بررسی اثر نانو اکسید روی به‌عنوان جاذب نور فرابنفش بر مقاومت به هوازدگی چندسازه چوب-پلیپروپیلن مطالعه شد. برای این منظور، چندسازههای چوب-پلیپروپیلن با افزودن 0، 1، 2 و 3 درصد نانو اکسید روی به کمک مخلوطکن داخلی و پرس آزمایشگاهی ساخته شدند. سپس آزمون هوازدگی شدت گرفته به مدت 1480 ساعت (در توالیهای 0، 480، 960 و 1480 ساعت) روی آنها انجام شد. برای مطالعه شدت هوازدگی، از آزمونهای مقاومت کششی، سختی، رنگسنجی، تصاویر استریومیکروسکوپ و طیفسنجی FTIR استفاده شد. نتایج نشان داد که هوازدگی موجب تخریب فیزیکی و شیمیایی سطح نمونهها، تغییر رنگ و کاهش مقاومتهای کششی و سختی شده است. وجود نانو اکسید روی در ساختار چندسازه توانست تا حدودی از افت مقاومت کششی و سختی نمونهها و همچنین تخریب سطح آنها جلوگیری کند. درمجموع می‌توان گفت که استفاده از 2 درصد نانو اکسید روی عملکرد بهتری را در برابر هوازدگی نسبت به سایر مقادیر مورد استفاده در این تحقیق داشته است. | ||
| کلیدواژه‌ها | ||
| چندسازه چوب-پلیپروپیلن؛ هوازدگی؛ نانو اکسید روی | ||
| عنوان مقاله [English] | ||
| A study on the protective effect of nano zinc oxide against weathering of wood-polypropylene composite | ||
| نویسندگان [English] | ||
| Davood Rasouli1؛ Hossein Yousefi2؛ Mahdi Mashkour2 | ||
| 1Assistant Prof, Department of Wood Engineering and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran. | ||
| 2Associate Prof, Department of Wood Engineering and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran. | ||
| چکیده [English] | ||
| In this research, the effect of using nano-zinc oxide (nano-ZnO) as a UV absorbent on the weathering resistance of wood- polypropylene composite was investigated. For this purpose, composite samples containing 0, 1, 2 and 3% nano-ZnO were manufactured using an internal mixer and a laboratory press. The prepared specimens were exposed to artificial weathering for 1480 hrs (in the periods of 0 ,480, 960 and 1480 hrs). The weathering degradation of specimens was monitored by tensile strength, hardness, colorimetry, Fourier transform infrared spectroscopy (FTIR), and, stereomicroscope tests. Results showed that weathering caused color changes, tensile strength and hardness loss, physical and chemical degradation on the surface of the samples. The use of nano-ZnO partially prevented tensile strength and hardness loss of samples as well as their surface degradation. In general, the use of 2% nano ZnO has been a better performance against weathering than other values. | ||
| کلیدواژه‌ها [English] | ||
| Wood-PP composite, Weathering, Nano-zinc oxide | ||
| مراجع | ||
|
-ASTM D882–02., 2002. In Standard test method for tensile properties of thin plastic sheeting. American Society for Testing and Materials, West Conshohocken: PA.
-Andrady, A., 2007. "Ultraviolet radiation and polymers. In Physical properties of polymers handbook, 857-866. Springer.
-ASTM, D., 2005a., 2240, Standard test method for rubber property-Durometer hardness.
-ASTM, D., 2005b., 4329-05. Standard Practice for Fluorescent UV Exposure of Plastics.
-ASTM, H., D2244–Standard Test Method for Calculation of Color Differences from Instrumentally Measured Color Coordinates.
-Beg, M.D.H. and Pickering, K.L., 2008. Accelerated weathering of unbleached and bleached Kraft wood fibre reinforced polypropylene composites. Polymer Degradation and Stability 93 (10): 1939-1946.
-Butylina, S., Hyvärinen, M. and Kärki, T., 2012a. A study of surface changes of wood-polypropylene composites as the result of exterior weathering. Polymer Degradation and Stability 97 (3): 337-345.
-Butylina, S., Hyvärinen, M. and Kärki. T., 2012b. Weathering of wood-polypropylene composites containing pigments. European Journal of Wood and Wood Products 70 (5): 719-726.
-Chang, B.P., Mohanty, A.K. and Misra, M., 2020. Studies on durability of sustainable biobased composites: a review. RSC Advances 10 (31): 17955-17999.
-Chaochanchaikul, K., Rosarpitak, V. and Sombatsompop, N., 2013. Photodegradation profiles of PVC compound and wood/PVC composites under UV weathering. Express Polymer Letters 7 (2).
-Clausen, C.A., Green, F. and Kartal, S.N., 2010. Weatherability and leach resistance of wood impregnated with nano-zinc oxide. Nanoscale research letters 5 (9): 1464-1467.
-Du, H., Wang, W., Wang, Q., Zhang, Z., Sui, S. and Zhang, Y., 2010. Effects of pigments on the UV degradation of wood‐flour/HDPE composites. Journal of applied polymer science 118 (2): 1068-1076.
-Fabiyi, J.S. and McDonald, M., 2014. Degradation of polypropylene in naturally and artificially weathered plastic matrix composites. Maderas. Ciencia y tecnología 16 (3): 275-290.
-Friedrich, D. and Luible, A., 2016. Investigations on ageing of wood-plastic composites for outdoor applications: A meta-analysis using empiric data derived from diverse weathering trials." Construction and Building Materials 124: 1142-1152.
-Farahani, M. and Banikarim, F., 2013. Effect of nano-zinc oxide on decay resistance of wood-plastic composites. BioResources 8 (4): 5715-5720.
-Fei, P., Xiong, H., Cai, J., Liu, C. and Yu, Y., 2016. Enhanced the weatherability of bamboo fiber-based outdoor building decoration materials by rutile nano-TiO2. Construction and Building Materials 114:307-316.
-Homkhiew, C., Ratanawilai, T. and Thongruang, W., 2014. Effects of natural weathering on the properties of recycled polypropylene composites reinforced with rubberwood flour. Industrial Crops and Products 56: 52-59.
-Kaymakci, A., 2020. Effect of sepiolite clay nanofibers on physical, mechanical, and thermal properties of wood-plastic nanocomposites. Journal of Thermoplastic Composite Materials
-Matuana, L.M., Jin, S. and Stark, N.M., 2011. Ultraviolet weathering of HDPE/wood-flour composites coextruded with a clear HDPE cap layer. Polymer Degradation and Stability 96 (1): 97-106.
-Matuana, L.M. and Kamdem, D.P., 2002. Accelerated ultraviolet weathering of PVC/wood‐flour composites. Polymer Engineering & Science 42 (8): 1657-1666.
-Muasher, M. and Sain, M., 2006. The efficacy of photostabilizers on the color change of wood filled plastic composites. Polymer degradation and stability 91 (5): 1156-1165.
-Nguyen, T.V., Dao, P.H., Nguyen, T.A., Dang, V.H., Ha, M.N. and Nguyen, P., 2020. Photocatalytic degradation and heat reflectance recovery of waterborne acrylic polymer/ZnO nanocomposite coating. Journal of Applied Polymer Science 137 (37): 49-116.
-Pandey, K.K. and Pitman, A., 2003. FTIR studies of the changes in wood chemistry following decay by brown-rot and white-rot fungi. International biodeterioration & biodegradation 52 (3): 151-160.
-Rajakumar, K., Sarasvathy, V., Chelvan, A.T., Chitra, R. and Vijayakumar, C.T., 2009. Natural weathering studies of polypropylene. Journal of Polymers and the Environment 17 (3): 191-202.
-Rangavar, H., Taghiyari, H.R., Oromiehie, A., Gholipour, T. and Safarpour, A., 2017. Effects of nanoclay on physical and mechanical properties of wood-plastic composites. Wood Material Science & Engineering 12 (4): 211-219.
-Rasouli, D., Dintcheva, N.T., Faezipour, M., La Mantia, F.P., Farahani, M. and Tajvidi, M., 2016. Effect of nano zinc oxide as UV stabilizer on the weathering performance of wood-polyethylene composite." Polymer Degradation and Stability 133: 85-91.
-Saunders, K.J., 2012. Organic polymer chemistry: an introduction to the organic chemistry of adhesives, fibres, paints, plastics and rubbers: Springer Science & Business Media.
-Stark, N.M. and Matuana, L.M., 2007. Characterization of weathered wood–plastic composite surfaces using FTIR spectroscopy, contact angle, and XPS. Polymer Degradation and Stability 92 (10): 1883-1890.
-Stark, N.M. and Matuana, L.M., 2006. Influence of photostabilizers on wood flour–HDPE composites exposed to xenon-arc radiation with and without water spray. Polymer degradation and stability 91 (12): 3048-3056.
-Tripathi, D., 2002. Practical guide to polypropylene: iSmithers Rapra Publishing.
-Whelan, A. and Whelan, T., 1994. Polymer technology dictionary: Springer Science & Business Media.
-Williams, R.S., 2005. Weathering of wood. Handbook of wood chemistry and wood composites 7: 139-185.
-Xuan, L., Han, C., Wang, D., Cheng, W. and Li, Q., 2017. Effect of surface-modified TiO2 nanoparticles on the anti-ultraviolet aging performance of foamed wheat straw fiber/polypropylene composites. Materials 10 (5): 456.
-Zhang, Z.M., Du, H., Wang, W.H. and Wang, Q.W., 2010. Property changes of wood-fiber/HDPE composites colored by iron oxide pigments after accelerated UV weathering. Journal of Forestry Research 21 (1): 59-62. | ||
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