Header menu link for other important links
X
Mechanical and dynamic mechanical studies of resol/vinyl acetate-2-ethylhexylacrylate/hexamethoxymethylmelamine interpenetrating network systems
C DATTA, D BASU, A BANERJEE
Published in WILEY-BLACKWELL
2003
Volume: 90
   
Issue: 7
Pages: 1765 - 1771
Abstract
Resol was solution blended with vinyl acetate-2-ethylhexylacrylate (VAc-EHA) resin in aqueous medium, in varying weight fractions, with hexamethoxymethylmelamine (HMMM) as crosslinker, and data was compared with a control. The present work was aimed at getting an optimum combination of tensile strength, dynamic mechanical strength, impact strength, and toughness by synthesis of an interpenetrating network (IPN) of the resins. The control gave a semi-IPN system, in which the resol crosslinked, while the acrylic did not, whereas the blend, where HMMM was the crosslinker, gave a full IPN system. Full IPNs of the resol/VAc-EHA system had higher moduli and ultimate tensile strength than the semi-IPNs. Dynamic mechanical study showed that full IPN systems have higher T g values than semi-IPN systems. The impact strength increases with increasing proportions of VAc-EHA copolymer.
About the journal
JournalData powered by TypesetJournal of Applied Polymer Science
PublisherData powered by TypesetWILEY-BLACKWELL
ISSN0021-8995