STUDIES ON MECHANICAL, OPTICAL AND BARRIER PROPERTIES OF LOW DENSITY POLY ETHYLENE WITH MICRO CLAY
Abstract
LDPE (Low density Poly ethylene) was melt blended with micro clay (0.5, 1, 3 & 5 wt%) by using a twin screw compounding extruder. Tubular blown film was taken using a tubular blown film extruder. Mechanical, optical and barrier properties were evaluated. The following trend was observed as the micro clay concentration was increased: The tensile strength was increased by 18% in machine direction (M/D) and decreased by 36% in transverse direction (T/D). The Elongation at break was lowered in both Machine and transverse directions. The tear strength was increased by 158 and 50% in M/D and T/D respectively. Dart impact strength was increased by about 95%. MFI decreased and density increased. WVTR decreased by 90% and oxygen gas permeability 80% decreased. Haze increased by 20% and clarity slightly decreased by 2%.
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J A Brydson, Polymer materials, 2005 7th edition Published by Elsevier
John Briston, Advanced in Plastics Packaging Technology by, Published by Pira International 1992.
RasikaTankhiwaleS.K.Bajpai, Preparation, characterization and antibacterial applications of ZnO-nanoparticles coated polyethylene films for food packaging,
Colloids and Surfaces B: Biointerfaces, Volume 90, 1 February 2012, Pages 16-20,
https://doi.org/10.1016/j.colsurfb.2011.09.031Get rights and content
YageXingaXihongLibLiZhangbQinglianXuaZhenmingCheaWeiliLibYuminBaiaKeLia , Effect of
TiO2 nanoparticles on the antibacterial and physical properties of polyethylene-based
film, Progress in Organic Coatings, Volume 73, Issues 2–3, February–March 2012,
Pages 219-224 https://doi.org/10.1016/j.porgcoat.2011.11.005Get rights and content
PoonsubThreepopnatkul, ChanikarnWongnarat, WirawanIntolo, SunanthaSuato ,
Chanin Kulsetthanchalee, Effect of TiO2 and ZnO on Thin Film Properties of PET/PBS Blend
for Food Packaging Applications. Energy Procedia, Volume 56, 2014, pp. 102-111
https://doi.org/10.1016/j.egypro.2014.07.137Get rights and content
Amparo Llorens, Elsa Lloret, Pierre A.Picouet, Raul Trbojevich, Avelina Fernandez,
Review, Metallic-based micro and nanocomposites in food contact materials and
active food packaging, Trends in Food Science & Technology, Volume 24,
Issue 1, March 2012, Pages 19-29. https://doi.org/10.1016/j.tifs.2011.10.001Get rights
and content
E. Kontov M. Niaounakis, Thermo mechanical properties of LLDPE/SiO2 Nano
composites Polymer, Vol 47, (4) 2006 P 1267-1280
Riko Uotila, Ulla Hippi, Santeri Paavola, Jukka Seppala, Compatibilization of
PP/elastomer/microsilica composites with funtionalized poly olefins: Effect on
microstructure and mechanical properties, Polymer, Vol 46(19) 2005, P7923-7930
A Dorigato, A Pegoretti, A Penati, Linear Low-density Poly ethylene/Silica micro- and
nano composites: dynamic rheological measurements and modeling, eXPRESS Polymer
Letters Vol. 4 (2), 2010, P115-129,
Supri A G, H Salmah and K Hazwan, Low Density Polyethylene –Nanoclay
Composites: The effect of Poly (Acrylic Acid) on Mechanical Properties, XRD,
Morphology Properties, and Water Absorption, Malaysian Polymer Journal (MPJ), Vol
(2) 2008, P30-53
Ruijun Gu, Mohini m Sain, Effect of wood fiber and Microclay on the Performance of
Soy Based Polyureathane Foams, J. Polymers and Environment, Vol 21 (1), 2013, P
-53.
Li Xie, Xia-Yan Lv, Zhong-Jie Han, Ji-Hao Ci, Chang-Qing Fang and Peng-Gang Ren,
Preparation and Performance of High-Barrier Low Density Polyethylene/Organic
Montmorrionite Nanocomposites, Polymer-Plastics Technology and Engineering, Vol.
(12(), 2012, P1251-1257
Susan Dadbin, Mohsen Noferesti, Masoud Frounchi, Oxygen Barrier LDPE/LLDPE/
Organo nano-composites Films for food packaging, Macromolecular Symposia, special
issue: Polymer Science and Technology, Vol. 274 (1), 2008, P 22-27
Annual ASTM Standards, Vol. 08- 01.03, Philadelphia, USA.
Michael D. Roussel, James E. Cara, Allen R. Guy, Lane G. Shaw Calcium carbonate
barrier films and uses thereof …Patent US 20090324979 A1.
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