Polyurethane-based sealants modified by blending with Kraft lignin

Download
  1. (PDF, 753 KB)
  2. Get@NRC: Polyurethane-based sealants modified by blending with Kraft lignin (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1002/app.1988.070350118
AuthorSearch for: ; Search for: ; Search for:
TypeArticle
Journal titleJournal of Applied Polymer Science
ISSN00218995
10974628
Volume35
Issue1
Pages247257
AbstractAn investigation was conducted to establish the viability of blending Kraft lignin (L), a naturally occuring, readily available polymer resource, with polyurethane-(PU) based sealants. The sealants were tested in a detailed program where lignin-sealant blends, having blend ratios varying between 0 and 20 pbw L, were prepared on substrates of aluminum, mortar, and wood, and subjected to laboratory control (C), artificial weathering (AW), and natural weathering (NW) conditions. Results of tension testing showed that generally, lignin acts as a reinforcing agent which adds rigidity to the polymeric matrix, as indicated by the increase in toughness and modulus of blended sealants with the addition of lignin. In addition, the curing mode of PU, as determined by sequence hardness testing, was modified with the addition of lignin.
Publication date
LanguageEnglish
Peer reviewedYes
NRC publication
This is a non-NRC publication

"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.

NPARC number23000662
Export citationExport as RIS
Report a correctionReport a correction
Record identifierc9b4fe05-3368-4351-9b80-70406ba86f94
Record created2016-08-19
Record modified2016-08-19
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)