Preparation and characterization of polyethylene nanocomposites with clay and silver nanoparticles
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Characterization of Minerals, Metals, and Materials
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Polyethylene is widely used for packing applications. Different grades of polyethylene, LLDPE and LDPE play a major role in the film blowing industry. The use of nanoclay in polymer matrices (non-polar) requires the use of a compatibilizer agent, ethylene graft maleic anhydride copolymer (PE-g-MA), which acts as a bridge for nanoclay-matrix-interaction. In our study, blown films of LLDPE, LDPE, and their blends were produced using a twin screw extruder. The combination of PEs as matrix, montmorillonite (MMT) and silver nanoparticles (AgNPs) intended to improve mechanical and thermal properties. Nanocomposites films with 1 wt% of montmorillonite and 0.5–1.0 wt% silver nanoparticles were prepared by blow extrusion and evaluated. Nanoclay intercalation/exfoliation degree was investigated by X-ray diffraction spectroscopy (XRD) and scanning electron microscopy (SEM). Mechanical and thermal properties were evaluated. The results showed optimum dispersion at intercalation/exfoliation levels for polyethylene nanocomposite (PENC), slight increasing in mechanical and especially improvement in thermal properties.
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OLIANI, WASHINGTON L.; FERMINO, DANILO M.; KOMATSU, LUIZ G.H.; LUGAO, ADEMAR B.; RANGARI, VIJAYA K.; LINCOPAN, NILTON; PARRA, DUCLERC F. Preparation and characterization of polyethylene nanocomposites with clay and silver nanoparticles. In: IKHMAYIES, SHADIA (ed.); LI, BOWEN (ed.); CARPENTER, JOHN S. (ed.); LI, JIAN (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); FIRRAO, DONATO (ed.); ZHANG, MINGMING (ed.); PENG, ZHIWEI (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); BAI, CHENGUANG (ed.); KALAY, YUNUS E. (ed.); GOSWAMI, RAMASIS (ed.); KIM, JEONGGUK (ed.). Characterization of Minerals, Metals, and Materials. Gewerbestrasse, Switzerland: Springer International Publishing AG., 2017. p. 709-718. (The Minerals, Metals & Materials Series). Disponível em: http://repositorio.ipen.br/handle/123456789/27927. Acesso em: 20 Mar 2026.
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