Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/79271
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dc.contributorInstitute of Textiles and Clothing-
dc.creatorHan, YT-
dc.creatorHu, JL-
dc.creatorXin, ZY-
dc.date.accessioned2018-11-05T01:45:16Z-
dc.date.available2018-11-05T01:45:16Z-
dc.identifier.issn2073-4360en_US
dc.identifier.urihttp://hdl.handle.net/10397/79271-
dc.language.isoenen_US
dc.publisherMolecular Diversity Preservation International (MDPI)en_US
dc.rights© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.rightsThe following publication Han, Y., Hu, J., & Xin, Z. (2018). In-Situ Incorporation of Alkyl-Grafted Silica into Waterborne Polyurethane with High Solid Content for Enhanced Physical Properties of Coatings. Polymers, 10(5), 514, 1-15 is available at https://dx.doi.org/10.3390/polym10050514en_US
dc.subjectWaterborne polyurethaneen_US
dc.subjectSilicaen_US
dc.subjectHybriden_US
dc.subjectHigh solid contenten_US
dc.subjectCoatingsen_US
dc.subjectMicrophaseen_US
dc.titleIn-situ incorporation of alkyl-grafted silica into waterborne polyurethane with high solid content for enhanced physical properties of coatingsen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage1en_US
dc.identifier.epage15en_US
dc.identifier.volume10en_US
dc.identifier.issue5en_US
dc.identifier.doi10.3390/polym10050514en_US
dcterms.abstractWaterborne polyurethane (WPU) with high solid content (45%) was obtained by utilizing dimethylol propionic acid (DMPA) and ethoxylated capped polymeric diol as complex hydrophilic groups. Alkyl-grafted silica was incorporated into polymer matrix through in situ polymerization to improve the performance of coatings casted from WPU dispersions. The addition of alkyl-grafted silica enlarged the particle size distribution whilst increased emulsion viscosity, which showed little influence on attainment of high solid content for WPU. The properties of obtained WPU/Silica coatings were investigated. Results showed that the functionalized surface of silica provides good compatibility with the WPU matrix, which promoted the homogeneous dispersion of silica particles. This facilitated the formation of nanosized silica papillae on coatings, contributing to surface roughness and hydrophobicity. Solvent resistance of WPU was enhanced with existence of alkyl-grafted silica particles. The WPU/Silica coatings also displayed improved thermal stability due to the thermal insulation ability and tortuous path effect of silica. Besides this, valid interactions between silica and WPU resulted in hybrid microphase of which the synergistic effect imparted superior mechanical properties at relatively low loadings of silica (2%). The facile technique presented here will provide an effective and promising method for preparing WPU hybrids with enhanced performance.-
dcterms.accessRightsopen access-
dcterms.bibliographicCitationPolymers, May 2018, v. 10, no. 5, 514, p. 1-15-
dcterms.isPartOfPolymers-
dcterms.issued2018-
dc.identifier.isiWOS:000435199300052-
dc.identifier.scopus2-s2.0-85046999746-
dc.identifier.artn514en_US
dc.identifier.rosgroupid2017004303-
dc.description.ros2017-2018 > Academic research: refereed > Publication in refereed journal-
dc.description.validate201810 bcrcen_US
dc.description.oaVersion of Record-
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublished-
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