Mechanical characteristics of sealants based on polyurethane-lignin polyblends

Download
  1. (PDF, 1 MB)
  2. Get@NRC: Mechanical characteristics of sealants based on polyurethane-lignin polyblends (Opens in a new window)
AuthorSearch for: ; Search for:
TypeArticle
Journal titleJournal of Adhesion Science and Technology
ISSN0169-4243
Volume8
Issue9
Pages957969; # of pages: 13
SubjectAdhesives and Sealants; Buildings
AbstractPreviously, different characteristics such as curing, morphology, miscibility and swelling havebeen evaluated in studies of polyurethane-lignin polyblends. In the present paper the mechanical propertiesof the same polyblends are investigated and compared with those of polyurethane filled with some mineralfillers. The effect of these fillers and lignin on the polyurethane sealant curing kinetics and the effect of theirpacking characteristics on the mechanical properties are considered and discussed. The research showed thatthe addition of mineral fillers or different kinds of lignins increases the Young modulus. The enhancementof the mechanical characteristics is more evident for Sillitin/Titanox (clay/Ti02) filled polyurethane thanfor lignin filled polyurethane. This mineral filler combination increases both stress and strain, which isattributed to its finer average particle size.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number39007
5236
NPARC number20375185
Export citationExport as RIS
Report a correctionReport a correction
Record identifierd0f738de-ca28-4213-90a3-7c38ed16b3c8
Record created2012-07-23
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)