Optical properties of CaCO3-filled poly(ethylene-co-vinyl acetate) films

Optical properties, such as transmittance and diffuse reflectance in the range of 200-800 nm, of hot-pressed films of poly(ethylene-co-vinyl acetate) filled with up to 10 wt% of calcium carbonate were analyzed. A linear relationship between optical properties and film thickness was found for these c...

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Bibliographic Details
Authors: Larena, Alicia, Villar, Marcelo Armando
Format: article
Status:Published version
Publication Date:2001
Country:Argentina
Institution:Consejo Nacional de Investigaciones Científicas y Técnicas
Repository:CONICET Digital (CONICET)
Language:English
OAI Identifier:oai:ri.conicet.gov.ar:11336/100967
Online Access:http://hdl.handle.net/11336/100967
Access Level:Open access
Keyword:COMPOSITES
DIFFUSE REFLECTANCE
EVA
OPTICAL PROPERTIES
TRANSMITTANCE
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
Description
Summary:Optical properties, such as transmittance and diffuse reflectance in the range of 200-800 nm, of hot-pressed films of poly(ethylene-co-vinyl acetate) filled with up to 10 wt% of calcium carbonate were analyzed. A linear relationship between optical properties and film thickness was found for these composites. In the range of compositions analyzed, transmittance of films decreases with an increasing in the filler content following an exponential law. The amount of decreasing can also be related to the average statistics particle diameter for a constant weight fraction of added filler by a square root law. Diffuse reflectance of the films was very low in the visible zone and increases considerably in the UV zone.