Portal de Periódicos da CAPES

Studies of jute fiber composites with polyesteramide polyols as interfacial agent

1983; Wiley; Volume: 28; Issue: 10 Linguagem: Inglês

10.1002/app.1983.070281003

1097-4628

Ratna Mukherjea, Sampa Pal, Shankha Sanyal,

Polymer Nanocomposites and Properties

Abstract Polyesteramide polyols have been synthesized by melt condenstion using a mixture of alkanolamines, polyethylene glycols, and dicarboxylic acids/anhydrieds, and the behavior or resin samples as interfacrial agents in unidirectional as well as random composites of jute/epoxy and jute/polyester has been evaluated. Mechanical properties of these composties with or without interfacial agents have been determined along with the effect of water uptake on such properties. The incorporation of polyesteramide polyol (PEAP) resins as interfacila agents has been found to significantly improcve the mechanical properties of jute fiber composites. It has also been found that increasing the hydroxyl value of PEAP results in a better bonding of the composities up to a certain optimum limit of hydroxyl value beyond which the molecular weight of the interfacila agent as well as its bonding strenght decreases. Use of PEAP resin of optimum hydroxyl value and molecular weight also significantly improves the water resistance capacities of jute/epoxy composites.