Poli(butilen adipato-ko-tereftalato)/Fenoxi sistemaren nahaskortasuna eta hesi-propietateen aldaketa

Abstract

Biodegradable and compostable Poly(butylene adipate-co-terephthalate) (PBAT) copolymer has been stud ied. lt has good mechanical properties, but in order to be used in industrial appl ications its barrier properties must be improved significant ly. For this purpose it has been mixed with phenoxy resin. Miscibility is established through determ ination of the glass transition temperature. The relationship between the T~ and composition has been stud ied using different models, since th is re lat ionship reflects the strength of the interactions. Water vapou r and oxygen permeability ha ve been measured to determine transpon properties. The results indicare that the PBAT/Ph system is miscib le o ver the en tire composition range. The analysis of the transport properties results shows that the addition of phenoxy causes a sharp decrease in water vapour and oxygen permeability, wh ich is beneficia! for industrial applications .