Preparation and Mechanical Properties of PTFE/SPT Composites Reinforced with Nanoparticles

Abstract:

Nanoparticles have been used with polymer to make composites having remarkable properties. An attempt was made in this direction, in order to enhance the mechanical and tribological properties of nanocomposites. In the paper, the polytetrafluroethylene (PTFE) polymer-based nanocomposites filled with serpentine (SPT) and reinforced with different nanoparticles such as nano-β-carborundum whisker (β-SiCw), nano-copper and nano-TiO2 were prepared by using cold briquetting and hot-press sintering technologies. Also, the mechanical performances of these nanocomposites were studied. The quasi-static tensile experiments and dynamic mechanical thermal analysis (DTMA) were carried out. The results obtained showed that the mechanical properties of these nanocomposites stronger depend on the variety of nanoparticle. Stress-displacement and stress relaxation curves indicate that theses composites are typical viscoelastic materials. These research findings are believed to be helpful for providing practical guide in applications.

• Periodical: Applied Mechanics and Materials (Volumes 29-32)
• Pages: 389-394
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.29-32.389
• Online since: August 2010
• Authors: Zhi Ning Jia, Yu Lin Yang, Bing Li Fan, Xiao Jing Yu
• Keywords: Mechanical Property, Polymer-Based Nanocomposite, Stress Relaxation, Viscoelasticity

References

[1] J. Bijwe, J. J. Rajesh and A. Jeyakumar. Influence of Solid Lubricants and Fiber Reinforcement on Wear Behaviour of Polyethersulphone, Tribol. Int., 33 (2000) pp.697-706.

DOI: 10.1016/s0301-679x(00)00104-3

[2] Cenna A. A, Dastoor P and Beehag A., Effects of Graphite Particle Addition upon the Abrasive Wear of Polymer Surfaces, J. Mater. Sci., 36 (2001) pp.891-900.

[3] Zhao-zhu ZHANG, Qun-ji XUE and Wei-min LIU, Friction and Wear Characteristics of Metal Sulfides and Graphite-Filled PTFE Composites under Dry and Oil-Lubricated Conditions, J Appl. Polym. Sci., 72 (1999) pp.751-761.

DOI: 10.1002/(sici)1097-4628(19990509)72:6<751::aid-app3>3.0.co;2-w

[4] W. Gregory Sawyer, Kevin D. Freudenberg and Praveen Bhimaraj, A Study on the Friction and Wear Behaviour of PTFE Filled with Alumina Nanoparticles, Wear, 254 (2003) pp.573-580.

DOI: 10.1016/s0043-1648(03)00252-7

[5] Wang Qihua, Xue Qunji and Liu Weimin. The friction and wear characteristics of nanometer SiC and polytetrafluoroethylene filled polyetheretherketone. Wear, 243 (2000) pp.140-146.

DOI: 10.1016/s0043-1648(00)00432-4

[6] J. K. Kriiger, C. Fischer and A. Le Coutre. The mono-crystalline state of polyvinylidene fluoride/trifluoroethylene on nano-structured Teflon. Appl. Phys. A, 70 (2000) pp.297-305.

DOI: 10.1007/s003390050050

[7] Khedkar J, Negulescu I and Meletis E. I. Sliding wear behavior of PTFE composites. Wear, 252 (2002) pp.361-369.

DOI: 10.1016/s0043-1648(01)00859-6

[8] Xin Feng, Huaiyuan Wang and Yijun Shi. The effects of the size and content of potassium titanate whiskers on the properties of PTW/PTFE composites. Mater. Sci. Eng., A, 2007(448), pp.253-258.

DOI: 10.1016/j.msea.2006.10.021

[9] V. N. Aderikha and V. A. Shapovalov. Effect of filler surface properties on structure, mechanical and tribological behavior of PTFE-carbon black composites. Wear, Article In Press.

DOI: 10.1016/j.wear.2010.02.022

[10] Zhi-ning Jia, Yu-lin Yang and Jin-jiang Chen. Inflence of serpentine content on tribological behaviors of PTFE/serpentine composite under dry sliding condition. Wear, 2010(268) pp.996-1001.

DOI: 10.1016/j.wear.2009.12.009

[11] Z. Zhang, P. Klein and K. Friedrich. Dynamic mechanical properties of PTFE based short carbon fibre reinforced composites: experiment and artificial neural network prediction. Compo. Sci. and Technol., 62 (2002) pp.1001-1009.

DOI: 10.1016/s0266-3538(02)00036-2