The effect of calcium carbonate particles on the wear behavior of nano-composite gear PA6/PP/Nano CaCO3
Subject Areas : journal of New Materials
R. Mohsenzadeh
1
(کارشناسی ارشد، مهندسی مکانیک، دانشگاه تبریز، تبریز)
K. Shelesh Nezhad
2
(دانشیار، مهندسی مکانیک، دانشگاه تبریز، تبریز)
M. Soltanzadeh
3
(کارشناسی ارشد، مهندسی مکانیک، دانشگاه تبریز، تبریز)
S. Montakhabi
4
(کارشناسی ارشد، مهندسی مکانیک، دانشگاه تبریز، تبریز)
Keywords: Wear, Nano-CaCO3, PA6, Polypropylene,
Abstract :
Nanocomposite gears based on Polyamide 6/Polypropylene (PA6/PP 67/33) blend containing 2.5 to 10 (wt%) of nano-CaCO3 and 5 (wt%) of maleated polypropylene (PP-g-MAH) as compatibilizer were prepared by injection molding. The wear and temperature of gears were characterized against the time by employing a gear testing rig. The ends of gears working lives at which the permanent deformation was happened and, as a consequence, power transmission interrupted, under output torque 14.8 Nm were obtained. The inclusion of nano-CaCO3 led to the 5 °C reduction of gears working temperatures. The maximum life under the torque of 14.8 Nm, was observed in nanocomposite gears containing 2.5 (wt%) of nano-CaCO3 was nearly 2.5 times higher than that of neat PA6 gears. The raise of gears durability by inclusion of CaCO3 nanoparticles was attributed to the improvements of gear teeth flexural and wear resistances.
References:
1- R. Senthilvelan, "Effect of rotational speed on the performance of unreinforced and Glass fiber reinforced Nylon6 spur gears", Materials and Design, Vol. 28, pp. 765–772, 2007.
2- H. Imrek, "Performance improvement method for Nylon 6 spur gears" Tribology Internation, Vol. 42, pp. 503-510, 2009.
3- E. Alfredo, Selection of Polymeric Materials, USA, William Andrew, pp. 26-27, 2008.
4- F. Mend, H. Can, M. KemalKu, "Fatigue properties of polypropylene involute Rack gear reinforced with metallic springs", Materialsand Design, Vol. 27, pp. 427–433, 2006.
5- M. Kohan, Nylon plastics handbook, Munich, Carl Hanser, pp. 9.32-9.43, 1995.
6- D.P.N. Vlasveld, J. Groenewold, H.E.N. Bersee, and S.J. Picken, "Moisture absorption in polyamide-6silicatenanocomposite and its influence on the mechanical properties", Polymer, Vol. 46, pp. 12567-12576, 2005.
7- DC. Evans, Polymer–fluid interaction in relation to wear. London: Mechanical Engineering Publication Ltd.; pp. 47–56, 1978.
8- G. Srinath, "Sliding wear performance of polyamide6–clay nano composites in water", Composites Science and Technology, Vol 67, pp. 399-405, 2007.
9- م. مطلبی، ح. اورنگ، ک. شلش نژاد، "مقایسه خواص مکانیکی نانو کامپوزیت های پلی آمید 6 – کربنات کلسیم و پلی آمید 6 - سیلیکا "، یازدهمین کنفرانس مهندسی ساخت و تولید ایران، دانشگاه تبریز، مهر1389.
10- س. منتخبی، اثر افزودن نانو ذرات معدنی بر خواص مکانیکی آلیاژ PA6/PP، پایان نامه کارشناسی ارشد، دانشگاه تبریز، دانشکده مکانیک، گروه ساخت و تولید، شهریور 1390.
11- Kusmono. M, Ishak ,Chow,T. Takeichi, and Rochmadi, "Enhancement of properties of PA6/PP nano composites via organic modification and compatibilization", Express Polymer Letters, Vol. 2, No .9, pp. 655664, 2008.
12- B. Suresha, B.N. RaviKumar, M. Venkataramareddy, T. Jayaraju. "Role of micro/nano fillers on mechanical and tribological properties of polyamide66/polypropylene composites", Materials and Design, Vol. 31, pp. 311993, 2010.
13- M. Zhang, X.B. Wang, X.S. Fu, Y.Q. Xia, "Performance and anti-wear mechanism of CaCO3 nanoparticles as a green additive in poly-alpha-olefin", Tribol, Vol. 42, pp. 1029–1039, 2009.
14- N.A. Wright, and S.N. Kukureka, "Wear testing and measurement techniques for polymer composite gears", Wear, Vol. 251, pp. 1567-1578, 2001.
15- K. Mao, "Friction and wear Behavior of acetal and nylon gears", Wear, Vol. 267, pp. 639-645. 2009.
16- E. Ashrafi,A. Nezami-Fard, K. Shelesh-Nezhad, "Experimental Study of Wear Behavior in Polyacetal(POM)/Clay Nanocomposite Gears". The 2ndInternational Conference on Composites: Dec. 27-30, Kish Island, Iran.2010.
17- Q.X. Zhang, "Crystallization and impact energy of polypropylene/CaCO3 nanocomposites with nonionic modifier", Polymer, Vol. 45, pp. 5985–5994, 2004
18- S. Kirupasankar, C. Gurunathan, R. Gnanamoorthy, "Transmission efficiency of polyamide nanocomposite spur gears", Materials and Design, Vol. 12, pp. 0261-3069, 2012.
19- A. Ayman, "Friction and Wear of Polymer Composites Filled by Nano-Particles", World Journal of Nano Science and Engineering, Vol. 2, pp. 32-39, 2012.
20- D. Li Chang.a, Klaus Friedrich, "Enhancement effect of nanoparticles on the sliding wear of shortfiber-reinforced polymer composites: Acritical discussion of wear mechanisms", Tribology International, Vol. 43, pp. 2355–2364, 2010.
21- L. Chang, "On the sliding wear of nanoparticle filled polyamide 66 composites", Composites Science and Technology" Vol. 66, pp. 3188–3198, 2006.
22- I. Kemal, A. Whittle, R. Burford, T. Vodenitcharova, M. Hoffman, "Toughening of unmodified polyvinylchloride through the addition of nanoparticulate calcium carbonate", Polymer, Vol. 50, pp. 4066-4079, 2009.
23- T.D. Lam, T.V. Hoang, D.T. Quang, and J.S. Kim, "Effect of nanosized and surface-modified precipitated calcium carbonate on properties of CaCO3/polypropylene nanocomposites", Materials Science and Engineering, Vol. 501, pp. 87-93, 2009.
24- ن. بازوبندی، س.م. زبرجد، س.ع. سجادی، "مطالعه ی مقاومت خراشی پلی اتیلن و کامپوزیت تقویت شده ان با نانو ذرات کربنات کلسیم"، مجله مواد نوین، جلد 4، شماره 2، صفحه 79، زمستان 1392.
25- ز. شکوری، "ارزیابی ریزساختار نانوکامپوزیت کوپلیمر (اکرینولیتریل- بوتادین) تقویت شده بوسیله نانو کربنات کلسیم با استفاده از آزمون نفوز پذیری"، مجله مواد نوین، جلد 6، شماره 2، صفحه 29، زمستان 1394.
26- س. صاحبیان سقی، س.م. زبرجد، ا. لاتزری، "تاثیر همزمان عملیات سطحی و امواج آلتراسون بر توزیع پذیری نانو لوله های کربنی در زمینه پلی اتیلن"، مجله مواد نوین، جلد 5، شماره 1، پاییز 1393.
27- J. Scheirs, Compositional and failure analysis of polymers, Apractical approach. Chichester, John Wiley and Sons, 2000.
28- J. Tripathi D. Practical, Guide to Polypropylene. UK, Rapra Technology Limited, 2002.