A comparative study of UV aging characteristics of poly(ethylene-co-vinyl acetate) and poly(ethylene-co-vinyl acetate)/carbon black mixture

Copuroglu M., ŞEN M.

POLYMERS FOR ADVANCED TECHNOLOGIES, vol.16, no.1, pp.61-66, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 16 Issue: 1
  • Publication Date: 2005
  • Doi Number: 10.1002/pat.538
  • Journal Name: POLYMERS FOR ADVANCED TECHNOLOGIES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.61-66
  • Keywords: poly(ethylene-co-vinyl acetate), carbon black, aging, degradation, FT-IR, LOW-DENSITY POLYETHYLENE, THERMOOXIDATIVE STABILITY, STABILIZATION, DECOMPOSITION, DEGRADATION, MECHANISMS, OXIDATION, PRODUCTS, KINETICS
  • Hacettepe University Affiliated: Yes

Abstract

In this comparative study, the effect of carbon black (CB) on the UV aging characteristics of poly(ethylene-co-vinyl acetate) (EVA) was investigated. EVA, containing 13% vinyl acetate (VA), and poly(ethylene-co-vinyl acetate)/carbon black mixture (EVA/CB), containing 13% VA and 1% CB, were aged by means of UV light with a wavelength in the vicinity of 259nm, in air, up to 400hr. Sol-gel analyses were made to determine the percentage gelation of both virgin and aged samples. FT-IR measurements were performed to follow the chemical changes which took place in the samples during aging. Dynamic and isothermal thermogravimetry studies were performed for determination of the thermal stabilities of virgin and aged samples.