STUDY OF UNSATURATED PERMEABILITY OF AMAZON NATURAL FIBERS FABRICS

• DOI: 10.22533/at.ed.3173152308054

• Palavras-chave: Infusion, curaua, jute, raffia.

• Keywords: Infusion, curaua, jute, raffia.

• Abstract:

  In this work, the unsaturated permeability of natural fibers of curaua, jute and raffia, arranged in the form of aligned fibers and woven in a flat style, was determined through the process of rectilinear resin infusion using a polyester resin as the working fluid. unsaturated. Fiber compressibility tests were previously carried out in order to study the effects of the vacuum level inside the infusion chamber on fiber compaction and to predict the porosity of fiber arrays. The effects on the permeability of the surface treatment of curauá fibers with NaOH at different concentrations were also studied. The results showed that raising the vacuum level, by changing the state of compaction of the fibers, reduced the overall permeability of all fibers and arrangements tested. The alkaline treatment of the curauá fibers contributed to the increase in the global permeability of the fabrics by reducing the permeability inside the fiber bundles.