Nanocomposites of ethylene-vinyl acetate copolymer (EVA) and organoclay prepared by twin-screw melt extrusion

2004 ◽  
Vol 25 (5) ◽  
pp. 535-542 ◽  
Author(s):  
Farao Zhang ◽  
Uttandaraman Sundararaj
Keyword(s):  
Vinyl Acetate ◽  
Ethylene Vinyl Acetate ◽  
Melt Extrusion ◽  
Twin Screw ◽  
Acetate Copolymer ◽  
Ethylene Vinyl Acetate Copolymer

Vibrational spectroscopic and ultrasound analysis for the in-process monitoring of poly(ethylene vinyl acetate) copolymer composition during melt extrusion

The Analyst ◽  
2005 ◽  
Vol 130 (3) ◽  
pp. 286 ◽  
Author(s):  
S. E. Barnes ◽  
E. C. Brown ◽  
M. G. Sibley ◽  
H. G. M. Edwards ◽  
P. D. Coates
Keyword(s):  
Vinyl Acetate ◽  
Process Monitoring ◽  
Ethylene Vinyl Acetate ◽  
Copolymer Composition ◽  
Melt Extrusion ◽  
Poly Ethylene ◽  
Acetate Copolymer ◽  
Ethylene Vinyl Acetate Copolymer

The rheological behavior of ethylene vinyl acetate copolymer/rectorite nanocomposites during the melt extrusion process

2016 ◽  
Vol 27 (11) ◽  
pp. 1446-1450 ◽  
Author(s):  
Z. Chen ◽  
C. Yin ◽  
S. Wang ◽  
Q. M. Fu ◽  
Q. R. Deng ◽  
...  
Keyword(s):  
Vinyl Acetate ◽  
Rheological Behavior ◽  
Ethylene Vinyl Acetate ◽  
Extrusion Process ◽  
Melt Extrusion ◽  
Acetate Copolymer ◽  
Ethylene Vinyl Acetate Copolymer

scholarly journals MOISTURE ABSORPTION BEHAVIOR OF MALEIC ANHYDRIDE GRAFTED POLYETHYLENE MODIFIED ETHYLENE VINYL ACETATE COPOLYMER / HIGH DENSITY POLYETHYLENE NANOCOMPOSITES

2014 ◽  
pp. 39-43
Author(s):  
ATUL RAJAN ◽  
PRADEEP UPADHYAYA ◽  
VIJAI KUMAR ◽  
NAVIN CHAND
Keyword(s):  
Maleic Anhydride ◽  
Vinyl Acetate ◽  
High Density Polyethylene ◽  
Moisture Absorption ◽  
Ethylene Vinyl Acetate ◽  
High Density ◽  
Twin Screw ◽  
Blend Nanocomposites ◽  
Acetate Copolymer ◽  
Ethylene Vinyl Acetate Copolymer

The compatibilized poly ethylene vinyl acetate copolymer (EVA)/high density polyethylene (HDPE) /organomodified montmorillonite (OMMT) blend nanocomposites were prepared in a co-rotating twin-screw extruder followed by injection molding. Montmorillonite clay was modified by octadecylamine and aminopropyltriethoxysilane to make it organophilic. Maleic anhydride grafted high-density polyethylene was used as a Compatibilizer. Nanoclay was added in different proportions to the selected EVA/HDPE blend composition. The concentration of nanoclay was varied from1 to 5 phr in the polymer blend. The resulting nanocomposites were evaluated in terms of their water absorption behavior. Moisture absorption behavior of compatibilized blends is lower than their corresponding blend. On adding the nanoclay the moisture absorption behavior of blend nanocomposites changed at 4 phr nanoclay loading.

scholarly journals Indicator Layers Based on Ethylene-Vinyl Acetate Copolymer (EVA) and Dicyanovinyl Azobenzene Dyes for Fast and Selective Evaluation of Vaporous Biogenic Amines

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4361
Author(s):  
Tinkara Mastnak ◽  
Aleksandra Lobnik ◽  
Gerhard Mohr ◽  
Matjaž Finšgar
Keyword(s):  
Biogenic Amines ◽  
Vinyl Acetate ◽  
Colour Change ◽  
Ethylene Vinyl Acetate ◽  
Yellow Orange ◽  
Colour Changes ◽  
Limit Sensitivity ◽  
Linear Concentration Range ◽  
Acetate Copolymer ◽  
Ethylene Vinyl Acetate Copolymer

The article presents naked-eye methods for fast, sensitive, and selective detection of isopentylamine and cadaverine vapours based on 4-N,N-dioctylamino-4′-dicyanovinylazobenzene (CR-528) and 4-N,N-dioctylamino-2′-nitro-4′-dicyanovinylazobenzene (CR-555) dyes immobilized in ethylene-vinyl acetate copolymer (EVA). The reaction of CR-528/EVA and CR-555/EVA indicator layers with isopentylamine vapours caused a vivid colour change from pink/purple to yellow/orange-yellow. Additionally, CR-555/EVA showed colour changes upon exposure to cadaverine. The colour changes were analysed by ultraviolet–visible (UV/VIS) molecular absorption spectroscopy for amine quantification, and the method was partially validated for the detection limit, sensitivity, and linear concentration range. The lowest detection limits were reached with CR-555/EVA indicator layers (0.41 ppm for isopentylamine and 1.80 ppm for cadaverine). The indicator layers based on EVA and dicyanovinyl azobenzene dyes complement the existing library of colorimetric probes for the detection of biogenic amines and show great potential for food quality control.

Role of montmorillonite in flame retardancy of ethylene–vinyl acetate copolymer

2006 ◽  
Vol 91 (3) ◽  
pp. 593-599 ◽  
Author(s):  
Andrea Szép ◽  
András Szabó ◽  
Nikoletta Tóth ◽  
Péter Anna ◽  
György Marosi
Keyword(s):  
Vinyl Acetate ◽  
Flame Retardancy ◽  
Ethylene Vinyl Acetate ◽  
Acetate Copolymer ◽  
Ethylene Vinyl Acetate Copolymer
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