scholarly journals Development and Characterization of Poly Ethylene-Co-Vinyl Acetate (PEVA) Hybrid Nanocomposite Encapsulates for Solar PV

2020 ◽  
Author(s):  
Rashmi Aradhya ◽  
Madhu Bilugali Mahadevaswamy ◽  
Poornima
Keyword(s):  
Vinyl Acetate ◽  
Hybrid Nanocomposite ◽  
Solar Pv ◽  
Poly Ethylene

Characterization of Mechanical and Thermal Properties of Poly(ethylene-co -vinyl acetate) with Differents Bentonites

2014 ◽  
Vol 343 (1) ◽  
pp. 88-95 ◽  
Author(s):  
Reinaldo Yoshio Morita ◽  
Juliana Regina Kloss ◽  
Ronilson Vasconcelos Barbosa
Keyword(s):  
Thermal Properties ◽  
Vinyl Acetate ◽  
Mechanical And Thermal Properties ◽  
Poly Ethylene

scholarly journals Characterization of copolymers grafed with vinyl chloride onto poly(ethylene-vinyl acetate).

1988 ◽  
Vol 45 (9) ◽  
pp. 677-682
Author(s):  
Norio INOUE ◽  
Miya OKAMURA ◽  
Sadao SEGAWA
Keyword(s):  
Vinyl Acetate ◽  
Vinyl Chloride ◽  
Ethylene Vinyl Acetate ◽  
Poly Ethylene

Incorporation of Hybrid Pre-Dispersed Organo-Montmorillonite/ Destabilized Bentonite Nanofillers for Improving Tensile Strength of PEVA Copolymer with 40% Vinyl Acetate Composition

2020 ◽  
Vol 1010 ◽  
pp. 118-123
Author(s):  
Tuty Fareyhynn Mohammed Fitri ◽  
Azlin Fazlina Osman ◽  
Rahimah Othman ◽  
Zaleha Mustafa
Keyword(s):  
Tensile Strength ◽  
Vinyl Acetate ◽  
Mechanical Performance ◽  
Matrix Material ◽  
Tensile Load ◽  
Sem Analysis ◽  
Hybrid Nanocomposite ◽  
Elongation At Break ◽  
Melt Compounding ◽  
Poly Ethylene

In this work, soft and flexible poly (ethylene-co-vinyl acetate) (PEVA) with 40% vinyl acetate (VA) composition was used as matrix material to form nanocomposites with single nanofiller (organo-montmorillonite (OMMT) or Bentonite (Bent)) and hybrid nanofillers (OMMT+Bent in the ratios of 4:1, 3:2, 2:3 and 1:4). In order to achieve greater exfoliation and dispersion of the hybrid nanofillers in the PEVA matrix, the pre- dispersing and destabilization technique was applied to the O-MMT and Bent, respectively. The procedures were done prior to the melt compounding process of the nanocomposite. A tensile test was done to evaluate the mechanical properties of the resultant nanocomposites and to allow the selection of the best OMMT/Bent ratio for the production of the hybrid nanocomposite. The structure and fractured surfaces of the neat PEVA and nanocomposite were analyzed using Fourier Transform Infrared (FTIR) and Scanning Electron Microscopy (SEM), respectively. Results indicated that the addition of hybrid pre-dispersed OMMT/destabilized bentonite nanofillers into the PEVA matrix resulted in greater mechanical performance as compared to the single OMMT or single Bent nanofiller. The best achievement in the tensile strength and elongation at break of the PEVA hybrid nanocomposite was obtained when the hybrid nanofillers was added in the ratio of 4:1 (OMMT: Bent). The SEM analysis showed that the PEVA hybrid nanocomposite with 4OMMT: 1Bent had greater matrix deformation than the neat PEVA when subjected to tensile load. This mechanical deformation could be related to the increased flexibility of the PEVA chains which facilitated more energy absorption during the stretching of the material. Apparently, this mechanism acted as a matrix toughening process which allowed the increment of both tensile strength and elongation at break values of the PEVA upon the addition of the hybrid nanofillers.

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