Modirahmati, S., Jahan Latibari, A., Nourbakhsh, A., Roohnia, M., Minaei, M. (2012). The impact of nanoclay on the performance of polypropylene/OCC fibers/nanoclay composite. , 27(3), 373-385. doi: 10.22092/ijwpr.2012.115762
Sina Modirahmati; Ahmad Jahan Latibari; Amir Nourbakhsh; Mehran Roohnia; Mansor Minaei. "The impact of nanoclay on the performance of polypropylene/OCC fibers/nanoclay composite". , 27, 3, 2012, 373-385. doi: 10.22092/ijwpr.2012.115762
Modirahmati, S., Jahan Latibari, A., Nourbakhsh, A., Roohnia, M., Minaei, M. (2012). 'The impact of nanoclay on the performance of polypropylene/OCC fibers/nanoclay composite', , 27(3), pp. 373-385. doi: 10.22092/ijwpr.2012.115762
Modirahmati, S., Jahan Latibari, A., Nourbakhsh, A., Roohnia, M., Minaei, M. The impact of nanoclay on the performance of polypropylene/OCC fibers/nanoclay composite. , 2012; 27(3): 373-385. doi: 10.22092/ijwpr.2012.115762

The impact of nanoclay on the performance of polypropylene/OCC fibers/nanoclay composite

تحقیقات علوم چوب و کاغذ ایران
Article 1, Volume 27, Issue 3 - Serial Number 40, September 2012, Pages 373-385    PDF (304.95 K)
DOI: 10.22092/ijwpr.2012.115762
Authors
Sina Modirahmati1; Ahmad Jahan Latibari* 2; Amir Nourbakhsh3; Mehran Roohnia4; Mansor Minaei1
1MS.c. ,Wood and Paper Science and Technology Department ,Karaj Branch, Islamic Azad University, Karaj, Iran
2Prof., Department of Wood and Paper Science and Technology, Karaj Branch, Islamic Azad University Karaj Branch, Karaj, Iran,
3Associate Professor, Wood and Paper Science Dept. Research Institute of Forests and Rangelands
4Assistant Professor, Wood and Paper Science and Technology, Karaj Branch, Islamic Azad University, Karaj, Ira
Abstract
The impact of  nanoclay  addition on the properties of  polypropylene/ OCC fibers/ nanoclay Composite was investigated. Composites were prepared using 67% polypropylene, 30% OCC fiber, 3% MAPP and three dosages (2.5, 5, 7.5% based on total weight of PP/OCC/MAPP) of  nanoclay. Premix- melting of nanoclay and polypropylene was used to add nanoclay to the composite mixture. Pre-mixed nanoclay/ polypropylene  was melt-mixed with OCC fibers and MAPP and then test samples were made using this compound. The results revealed that addition of nanoclay to polypropylene/OCC fiber composite reduced flexural strength , tensile strength and notched Izod impact strength, but the flexural modulus and tensile modulus of final composite were improved significantly. The influence of nanoclay addition on flexural strength and tensile modulus of composite  was statistically significant at 99% level whereas its effect on tensile strength was statistically significant at 95%. However, the effect of nanoclay on both flexural modulus of elasticity and impact strength was not statistically significant. The addition of nanoclay to the composite reduces the bonding between polypropylene and OCC fibers. In the case of notched Izod strength, nanoclay particles generated stress concentration point within the composite structure initiating easier failure. Water absorption after 2 and 24 hours immersion was reduced.
Keywords
Nanoclay; Composite; OCC; Flexural strength; tensile strength
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