dc.contributor.author |
Simitzis, J |
en |
dc.contributor.author |
Karagiannis, K |
en |
dc.contributor.author |
Zoumpoulakis, L |
en |
dc.date.accessioned |
2014-03-01T01:12:00Z |
|
dc.date.available |
2014-03-01T01:12:00Z |
|
dc.date.issued |
1996 |
en |
dc.identifier.issn |
0014-3057 |
en |
dc.identifier.uri |
https://dspace.lib.ntua.gr/xmlui/handle/123456789/11915 |
|
dc.subject |
Activation Energy |
en |
dc.subject |
Kinetic Parameter |
en |
dc.subject |
Kinetics |
en |
dc.subject |
First Order |
en |
dc.subject.classification |
Polymer Science |
en |
dc.subject.other |
EPOXY LIGNIN POLYBLENDS |
en |
dc.subject.other |
COCONUT HUSK LIGNIN |
en |
dc.subject.other |
RESINS |
en |
dc.subject.other |
PARAMETERS |
en |
dc.subject.other |
DSC |
en |
dc.title |
Influence of biomass on the curing of novolac-composites |
en |
heal.type |
journalArticle |
en |
heal.identifier.primary |
10.1016/0014-3057(96)00011-0 |
en |
heal.identifier.secondary |
http://dx.doi.org/10.1016/0014-3057(96)00011-0 |
en |
heal.language |
English |
en |
heal.publicationDate |
1996 |
en |
heal.abstract |
Novolac resin (N) was cured with hexamethylenetetramine (hexa) without or with biomass (B). The agricultural/industrial by-product of olive stones was used as biomass. The curing was followed by DSC and i.r.-spectroscopy and the kinetic of curing was performed based on DSC scans. For the cured composites having high amounts of hexa (28.6%), the characteristic peaks of hexa were present, whereas for the material having low amounts of hexa (10%) these peaks disappeared. The composites containing high proportions of novolac (N = 70%) exhibit the same values of the enthalpy changes Delta H and Delta H-m, the latter calculated from the law of mixtures, whereas the composites with high proportion of biomass (B = 30%) show different values of Delta H and Delta H-m. The kinetic parameters of activation energy E and frequency factor k(o) of the total curing reaction of novolac with hexa are almost the same for high amounts of hexa (20%, 28.6%) but are slightly increased with decreased amounts of hexa (10%, 5%). The incorporation of biomass in the mass of novolac-hexa leads to an increase of E and k(o). Generally, the curing reaction for all materials is a first order reaction. Copyright (C) 1996 Elsevier Science Ltd |
en |
heal.publisher |
PERGAMON-ELSEVIER SCIENCE LTD |
en |
heal.journalName |
European Polymer Journal |
en |
dc.identifier.doi |
10.1016/0014-3057(96)00011-0 |
en |
dc.identifier.isi |
ISI:A1996UU46200008 |
en |
dc.identifier.volume |
32 |
en |
dc.identifier.issue |
7 |
en |
dc.identifier.spage |
857 |
en |
dc.identifier.epage |
863 |
en |