THE EFFECTS OF ZINC OXIDE AND CLAY NANOPARTICLES ON THERMAL, BARRIER, AND MECHANICAL PROPERTIES OF POLYPROPYLENE AND HIGH DENSITY POLYETHYLENE

Year 2015, Volume: 33 Issue: 1, 16 - 21, 01.03.2015

Parahat Atayev Tuğçe Bekat Mualla Öner

Abstract

Rod-shaped ZnO crystals were synthesized by chemical precipitation method and added into polypropylene and high density polyethylene together with montmorillonite particles by melt extrusion method. Surface modification with stearic acid was applied to the ZnO particles. Decreased oxygen permeability and increased elastic modulus were observed for both polypropylene and polyethylene when ZnO and clay particles were added together. Thermal properties of the polymers were preserved with the addition of the particles.

Keywords

Polyolefins, barrier property, mechanical properties, ZnO.

References

• [1] Wang Z.L., “Nanostructures of zinc oxide”, Mater. Today 7, 26–33, 2004.
• [2] Chandramouleeswaran S., Mhaske S.T., Kathe A.A. et al., “Functional behaviour of polypropylene/ZnO–soluble starch nanocomposites”, Nanotechnology 18, 385702, 2007.
• [3] Merijs M.R., Bochkov I., Grigalovca A. et al., “Nanocomposites based on ZnO modified polymer blends”, Macromol. Symp. 322,130–134, 2012.
• [4] Cui Y., Wang X., Li Z. et al., “Fabrication and Properties of Nano-ZnO / Glass-Fiber- reinforced polypropylene composites”, J. Vinyl Addit. Technol. 16,189-194, 2010.
• [5] Zaman H.U., Hun P.D., Khan R.A. et al., “Morphology, mechanical, and crystallization behaviors of micro- and nano-ZnO filled polypropylene composites”, J. Reinf. Plast. Compos. 31, 323–329, 2012.
• [6] Lepot N., Van Bael M.K., Van Den Rul H. et al., “Influence of incorporation of zno nanoparticles and biaxial orientation on mechanical and oxygen barrier properties of polypropylene films for food packaging applications”, J. Appl. Polym. Sci. 120,1616-1623, 2011.
• [7] Altan M., Yildirim H., “Effects of compatibilizers on mechanical and antibacterial properties of injection molded nano-ZnO filled polypropylene”, J. Compos. Mater. 46,3189–3199, 2012.
• [8] Li S., Li Y., “Mechanical and antibacterial properties of modified nano-ZnO/high-density polyethylene composite films with a low doped content of nano-ZnO”, J. Appl. Polym. Sci. 116, 2965–2969, 2010.
• [9] Kijkobchai P., Wacharawichanant S., “Effect of surface-treated ZnO on mechanical and morphological properties of high density polyethylene/ZnO nanocomposites”, TIChe International Conference, Thailand (2011), Paper code pp011.
• [10] Li Y.N., Cha K.H., He Q.H., “Preparation and properties research of modified nano-ZnO/HDPE composite films”, Adv. Mater. Res.174,450–453, 2011.
• [11] Atayev P., Oner M., “Effect of incorporation of clay and zinc oxide nanoparticles on oxygen barrier properties of polypropylene sheet”, J. Plast. Film Sheeting 30,248–265, 2013.
• [12] Akin B., Oner M., “Aqueous pathways for formation of zinc oxide particles in the presence of carboxymethyl inulin”, Res. Chem. Intermed. 38,1511–1525, 2012.
• [13] Ercan N., Durmus A., Soyubol G. et al., “Rheological and barrier properties of HDPE/clay nanocomposites compatibilized by an OX-PE blend”, Acad. J. Mat. Eng. 8,55–60, 2010.
• [14] Monsiváis-Barrón J., Bonilla-Rios J., Ramos de Valle F. et al., “Oxygen permeation properties of HDPE-layered silicate nanocomposites”, Polym. Bull. 70,939–951, 2013.
• [15] Carrera M.C., Erdmann E., Destéfanis H., “Barrier properties and structural study of nanocomposite of HDPE/montmorillonite modified with polyvinylalcohol”, J. Chem. 2013,1–7, 2013.
• [16] Elen K., Murariu M., Peeters R. et al., “Towards high-performance biopackaging: barrier and mechanical properties of dual-action polycaprolactone/zinc oxide nanocomposites”, Polym. Adv. Technol. 23,1422–1428, 2012.