Consideratii asupra proprietatilor fizice ale materialelor compozite rasina-fibra textila netesuta

摘要

The main objective to these experimental researches is to characterise the stratified plates from prepolimerised wadding obtained by thermoformation technology.The prepolimerised wadding is made up of 65% natural regenerated unwoven fibbers and 35% phenolformaldehyde resin.The parameters studied for the manufacturing of the stratified plates by means of their formation technology are:temperture (160 deg C,180 deg C,200 deg C),number of layers (1,2 and 3 layers) and thickness (3,5 and 7 mm).There were studied the following physical properties:mass and volume content of the resin in these composites,the density and mass on square metre.