| Download | - View accepted manuscript: Swelling and adhesion characteristics of lignin-filled polyurethane sealant (PDF, 1.1 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1163/156856194X00177 |
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| Author | Search for: Lacasse, M. A.1ORCID identifier: https://orcid.org/0000-0001-7640-3701; Search for: Feldman, D. |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Subject | swelling; adhesion; lignin; polyurethane seala; adhesives; buildings; Adhésifs et mastics |
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| Abstract | Previously, polyurethane (PU)-lignin polyblend sealants from the point of view of adhesion tovarious substrates, morphology based on scanning electron microscopy, and miscibility based on differential scanning calorimetry (DSC) and 13C nuclear magnetic resonance (NMR) were studied. In this study the same polyblends together with PU filled with a few mineral fillers were used. Swelling tests were applied to establish the number average molecular weight between crosslinks of the PU and to assess the degree of interaction between various fillers including different types of lignin and the PU matrix. Lignins were found to restrict less the degree of swelling of PU than that by the Sillitin (siliceous clay)-Titanox Ti02 3.17:1 wt/wt mixture. Data based on the swelling method show that lignins do not interact with the elastomer matrix to as great an extent as Sillitin/Titanox filler mixture, a finding which is in good agreement with the former DSC and NMR results. |
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| Publication date | 1994 |
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| Publisher | Taylor and Francis |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 39006
NRC-IRC-5237 |
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| NPARC number | 20375124 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 409da701-6ded-41d2-81c6-c9b74dad5149 |
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| Record created | 2012-07-23 |
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| Record modified | 2020-04-27 |
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