Processing and Crystal Microstructure of Porous High Pressure Crystallized Nanodiamond/UHMWPE Biomedical Nanocomposite

Abstract:

A novel processing technique using a series of mixing/refluxing procedures and high-pressure crystallization (HPC) to fabricate nanodiamond/ultra high molecular weight polyethylene (ND/UHMWPE) nanocomposites for biomedical application was examined. For better mimetic lubrication, a porous structure was implemented in this study. Vitamin E as an anti-oxidation additive was also incorporated in selected porous specimens. The morphology of the specimens was investigated by transmission electron microscopy. The phase and crystal characteristics were revealed by Raman spectroscopy and X-ray diffraction. Shore D hardness was used to study the effect of the material’s porous structure and particle-induced crystallization on the bulk mechanical property. The dispersion of NDs in the UHMWPE matrix can significantly promote the crystallinity of the HPC specimens, even with a porous structure. However, the bulk hardness does not reveal this improvement in crystal microstructure.

• Periodical: Advanced Materials Research (Volumes 328-330)
• Pages: 857-860
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.328-330.857
• Online since: September 2011
• Authors: Chau Chang Chou, Jyun Hao You, Cheng Lun Wu
• Keywords: Biomaterial, Crystal Structure, Nanocomposite, Nanodiamond, UHMWPE

References

[1] C.J. Schwartz and S. Bahadur: Tribol. Lett. Vol. 34 (2009), p.125.

[2] P.A. Williams, K. Yamamoto, T. Masaoka, H. Oonishi and I.C. Clarke: Tribol. Trans. Vol. 50 (2009), p.227.

[3] D.C. Bassett, S. Block and G.J. Piermarini: J. Appl. Phys. Vol. 45 (1974), p.4146.

[4] E. Oral, C.A.G. Beckos, A.J. Lozynsky, A.S. Malhi and O.K. Muratoglu: Biomaterials Vol. 30 (2009), p.1870.

[5] G. Wu, W.G. Zhang and C.T. Wang: TRIBOLOGY Vol. 27 (2007), p.539.

[6] C. -C. Chou, Y. -Z. Wang and J. -H. You: submitted to J. Mech. Behav. Biomed. Mater. (2011).

[7] A. Neville, A. Morina, T. Liskiewicz and Y. Yan: Proc. Inst. Mech. Eng. Part C-J. Mech. Eng. Sci. Vol. 221 (2007), p.1223.

[8] J. Jordan, K.I. Jacob, R. Tannenbaum, M.A. Sharaf and I. Jasiuk: Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process. Vol. 393 (2005), p.1.

[9] D. Huitink, T. Zarrin, M. Sanders, S. Kundu and H. Liang: J. Tribol. -Trans. ASME Vol. 133 (2011), p.021603.

[10] J.M. Wernik and S.A. Meguid: Appl. Mech. Rev. Vol. 63 (2010), p.050801.

[11] S.L. Ruan, P. Gao, X.G. Yang and T.X. Yu: Polymer Vol. 44 (2003), p.5643.

[12] Y.Q. Zhao, K.T. Lau, J.K. Kim, C.L. Xu, D.D. Zhao and H.L. Li: Compos. Pt. B-Eng. Vol. 41 (2010), p.646.

[13] P.H. Hermans and A. Weidinger: Die Makromolekulare Chemie Vol. 44 (1961), p.24.