Effect Of Epoxidized Natural Rubber  (Enr) on Film and Adhesive Properties of  Polyvinyl Alcohol (Pva)

Voaraweth Kanjanarnun; Thummanoon Prodpran; Surasit Prasarpran

Volume : III, Issue : I, January - 2014

Effect Of Epoxidized Natural Rubber (Enr) on Film and Adhesive Properties of Polyvinyl Alcohol (Pva)

Voaraweth Kanjanarnun, Thummanoon Prodpran, Surasit Prasarpran

Abstract :

Effect of epoxidized natural rubber (ENR) (ENR-12, ENR-27 and ENR-42) incorporated in polyvinyl alcohol (PVA) at various ratios (PVA/ENR = 100/0, 90/10, 80/20, 70/30, 60/40, 50/50 and 0/100) on adhesive and film properties of different PVA (BF-17, BP-17 and BF-26) was investigated. Incorporation of ENR at 10-30% could improve the film mechanical properties (i.e., increased tensile strength and elongation at eak) and adhesion properties (i.e., increased adhesive shear strength and elongation) of the PVA. In particular, PVA/ENR blend prepared from PVA-BF26 and ENR-12 at PVA/ENR ratio of 80/20 exhibited the best adhesive properties. This blend also showed the greatest improvement of mechanical properties of the resulting film, compared to the PVA without ENR incorporation.