01734naa a2200277 a 450000100080000000500110000800800410001910000230006024500930008326000090017652009050018565000110109065000090110165000190111065000130112965000090114265300150115165300160116665300200118265300140120270000220121670000150123870000230125370000220127677301580129810248192008-04-16       2002    bl ---       0--  u    #d1 aMEDEIROS, E. S. de  aMechanical and thermal properties of phenolic composites reinforced with hybrid fabrics.  c2002  aMechanical (tensile and impact) properties of novolac type phenolic composite reinforced with jute/cotton hybrid woven fabrics were investigated as a function of fiber orientation and roving/fabric characteristics. Scanning electron microscopy (SEM) was carried out to investigate the fiber-matrix adhesion. Results showed that the composite properties are strongly influenced by test direction and roving/fabrics characteristics. The highest tensile and impact strengths and Young's modulus were found along the jute rovings direction which decreased with increasing test angle. Jute fiber exhibited a better interaction with the matrix than cotton: the former has a higher irregular surface due to its multicellular nature, which promotes a better mechanical adhesion at the interface. The combination of jute/cotton properties in this composite is suitable for lightweight structural applications.  acotton  ajute  anatural fibers  aAlgodão  aJuta  aComposites  aCompósitos  aFibras naturais  aPhenolics1 aAGNELLI, J. A. M.1 aJOSEPH, K.1 aCARVALHO, L. H. de1 aMATTOSO, L. H. C.  tIn: MATTOSO, L. H. C.; LEÃO, A.; FROLLINI, E. (Ed.). Natural polymers and compósites IV. [São Carlos: EMBRAPA: USP; S.l.: UNESP, 2002]. 8 f. 1 CD-ROM.