Thermoset nanocomposites from two-component waterborne polyurethanes and cellulose whiskers
We prepared thermoset nancomposites from biomass-based two-component waterborne polyurethane (2K-WPU) and cellulose namowhiskers (CNWs). Due to the formation of hydrogen bonds, the viscosity of 2K-WPU dispersion was found to be increased with the addition of CNWs. SEM images showed "sea-island...
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| Veröffentlicht in: | Carbohydrate polymers 2014-05, Vol.105, p.207-213 |
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| creator | WU, Guo-Min JIAN CHEN HUO, Shu-Ping LIU, Gui-Feng KONG, Zhen-Wu |
| description | We prepared thermoset nancomposites from biomass-based two-component waterborne polyurethane (2K-WPU) and cellulose namowhiskers (CNWs). Due to the formation of hydrogen bonds, the viscosity of 2K-WPU dispersion was found to be increased with the addition of CNWs. SEM images showed "sea-island structure" corresponding to the microphase separation between CNWs nano-filler and the 2K-WPU matrix. The α-relaxation temperature (Tα) and glass transition temperature (Tg) increased with the increase of CNWs content, which was due to the formation of a rigid CNWs nano-phase acting as crosslinking points in the 2K-WPU matrix. Mechanical properties from tensile test showed Young's modulus and tensile strength of 2K-WPU/CNWs nanocomposites were reinforced by the addition of CNWs. Thermo-stability of 2K-WPU/CNWs nanocomposites decreased slightly with the increase of CNWs content, which could be attributed to the increased thermal conductivity of the material after adding CNWs. |
| doi_str_mv | 10.1016/j.carbpol.2014.01.095 |
| format | Article |
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Due to the formation of hydrogen bonds, the viscosity of 2K-WPU dispersion was found to be increased with the addition of CNWs. SEM images showed "sea-island structure" corresponding to the microphase separation between CNWs nano-filler and the 2K-WPU matrix. The α-relaxation temperature (Tα) and glass transition temperature (Tg) increased with the increase of CNWs content, which was due to the formation of a rigid CNWs nano-phase acting as crosslinking points in the 2K-WPU matrix. Mechanical properties from tensile test showed Young's modulus and tensile strength of 2K-WPU/CNWs nanocomposites were reinforced by the addition of CNWs. Thermo-stability of 2K-WPU/CNWs nanocomposites decreased slightly with the increase of CNWs content, which could be attributed to the increased thermal conductivity of the material after adding CNWs.</description><identifier>ISSN: 0144-8617</identifier><identifier>EISSN: 1879-1344</identifier><identifier>DOI: 10.1016/j.carbpol.2014.01.095</identifier><identifier>PMID: 24708971</identifier><identifier>CODEN: CAPOD8</identifier><language>eng</language><publisher>Kidlington: Elsevier</publisher><subject>Applied sciences ; Biomass ; Cellulose - chemistry ; Composites ; Elastic Modulus ; Exact sciences and technology ; Forms of application and semi-finished materials ; Hydrogen Bonding ; Nanocomposites - chemistry ; Nanocomposites - ultrastructure ; Polymer industry, paints, wood ; Polyurethanes - chemistry ; Rheology ; Technology of polymers ; Temperature ; Tensile Strength ; Thermal Conductivity ; Transition Temperature ; Turpentine - chemistry ; Viscosity</subject><ispartof>Carbohydrate polymers, 2014-05, Vol.105, p.207-213</ispartof><rights>2015 INIST-CNRS</rights><rights>Copyright © 2014 Elsevier Ltd. 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Due to the formation of hydrogen bonds, the viscosity of 2K-WPU dispersion was found to be increased with the addition of CNWs. SEM images showed "sea-island structure" corresponding to the microphase separation between CNWs nano-filler and the 2K-WPU matrix. The α-relaxation temperature (Tα) and glass transition temperature (Tg) increased with the increase of CNWs content, which was due to the formation of a rigid CNWs nano-phase acting as crosslinking points in the 2K-WPU matrix. Mechanical properties from tensile test showed Young's modulus and tensile strength of 2K-WPU/CNWs nanocomposites were reinforced by the addition of CNWs. Thermo-stability of 2K-WPU/CNWs nanocomposites decreased slightly with the increase of CNWs content, which could be attributed to the increased thermal conductivity of the material after adding CNWs.</description><subject>Applied sciences</subject><subject>Biomass</subject><subject>Cellulose - chemistry</subject><subject>Composites</subject><subject>Elastic Modulus</subject><subject>Exact sciences and technology</subject><subject>Forms of application and semi-finished materials</subject><subject>Hydrogen Bonding</subject><subject>Nanocomposites - chemistry</subject><subject>Nanocomposites - ultrastructure</subject><subject>Polymer industry, paints, wood</subject><subject>Polyurethanes - chemistry</subject><subject>Rheology</subject><subject>Technology of polymers</subject><subject>Temperature</subject><subject>Tensile Strength</subject><subject>Thermal Conductivity</subject><subject>Transition Temperature</subject><subject>Turpentine - chemistry</subject><subject>Viscosity</subject><issn>0144-8617</issn><issn>1879-1344</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpFkE9PwyAYh4nRuDn9CJpeTLy0Am2BHs3iv2SJl3nyQBh9yTrbUoFm2beXualcSOB5398vD0LXBGcEE3a_ybRyq8G2GcWkyDDJcFWeoCkRvEpJXhSnaBo_ilQwwifowvsNjocRfI4mtOBYVJxM0cdyDa6zHkLSq95q2w3WNwF8YpztkrC16c9bD31ItiqAW1nXQxKDd6ODsFZ9ZFVfJxradmzjpmS7bvwnOH-JzoxqPVwd7xl6f3pczl_Sxdvz6_xhkepc4JAC0NjRVIChxqpWWlGoqM4pZmVtNCUAgjIKhpclo3XOOC94JUoFFLShRT5Dd4e9g7NfI_ggu8bv68RudvSSlNED5XkuIloeUO2s9w6MHFzTKbeTBMu9V7mRR69y71ViIqPXOHdzjBhXHdR_U78iI3B7BJTXqjVO9brx_5yI4Yyw_BvIuoX2</recordid><startdate>20140525</startdate><enddate>20140525</enddate><creator>WU, Guo-Min</creator><creator>JIAN CHEN</creator><creator>HUO, Shu-Ping</creator><creator>LIU, Gui-Feng</creator><creator>KONG, Zhen-Wu</creator><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-1129-5647</orcidid></search><sort><creationdate>20140525</creationdate><title>Thermoset nanocomposites from two-component waterborne polyurethanes and cellulose whiskers</title><author>WU, Guo-Min ; JIAN CHEN ; HUO, Shu-Ping ; LIU, Gui-Feng ; KONG, Zhen-Wu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c380t-ee2861f9e0ed0adaca2e92c32065dfc21ee8262ef75562d367747985ae2ecf243</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Applied sciences</topic><topic>Biomass</topic><topic>Cellulose - chemistry</topic><topic>Composites</topic><topic>Elastic Modulus</topic><topic>Exact sciences and technology</topic><topic>Forms of application and semi-finished materials</topic><topic>Hydrogen Bonding</topic><topic>Nanocomposites - chemistry</topic><topic>Nanocomposites - ultrastructure</topic><topic>Polymer industry, paints, wood</topic><topic>Polyurethanes - chemistry</topic><topic>Rheology</topic><topic>Technology of polymers</topic><topic>Temperature</topic><topic>Tensile Strength</topic><topic>Thermal Conductivity</topic><topic>Transition Temperature</topic><topic>Turpentine - chemistry</topic><topic>Viscosity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>WU, Guo-Min</creatorcontrib><creatorcontrib>JIAN CHEN</creatorcontrib><creatorcontrib>HUO, Shu-Ping</creatorcontrib><creatorcontrib>LIU, Gui-Feng</creatorcontrib><creatorcontrib>KONG, Zhen-Wu</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Carbohydrate polymers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>WU, Guo-Min</au><au>JIAN CHEN</au><au>HUO, Shu-Ping</au><au>LIU, Gui-Feng</au><au>KONG, Zhen-Wu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermoset nanocomposites from two-component waterborne polyurethanes and cellulose whiskers</atitle><jtitle>Carbohydrate polymers</jtitle><addtitle>Carbohydr Polym</addtitle><date>2014-05-25</date><risdate>2014</risdate><volume>105</volume><spage>207</spage><epage>213</epage><pages>207-213</pages><issn>0144-8617</issn><eissn>1879-1344</eissn><coden>CAPOD8</coden><abstract>We prepared thermoset nancomposites from biomass-based two-component waterborne polyurethane (2K-WPU) and cellulose namowhiskers (CNWs). Due to the formation of hydrogen bonds, the viscosity of 2K-WPU dispersion was found to be increased with the addition of CNWs. SEM images showed "sea-island structure" corresponding to the microphase separation between CNWs nano-filler and the 2K-WPU matrix. The α-relaxation temperature (Tα) and glass transition temperature (Tg) increased with the increase of CNWs content, which was due to the formation of a rigid CNWs nano-phase acting as crosslinking points in the 2K-WPU matrix. Mechanical properties from tensile test showed Young's modulus and tensile strength of 2K-WPU/CNWs nanocomposites were reinforced by the addition of CNWs. Thermo-stability of 2K-WPU/CNWs nanocomposites decreased slightly with the increase of CNWs content, which could be attributed to the increased thermal conductivity of the material after adding CNWs.</abstract><cop>Kidlington</cop><pub>Elsevier</pub><pmid>24708971</pmid><doi>10.1016/j.carbpol.2014.01.095</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-1129-5647</orcidid></addata></record> |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Applied sciences Biomass Cellulose - chemistry Composites Elastic Modulus Exact sciences and technology Forms of application and semi-finished materials Hydrogen Bonding Nanocomposites - chemistry Nanocomposites - ultrastructure Polymer industry, paints, wood Polyurethanes - chemistry Rheology Technology of polymers Temperature Tensile Strength Thermal Conductivity Transition Temperature Turpentine - chemistry Viscosity |
| title | Thermoset nanocomposites from two-component waterborne polyurethanes and cellulose whiskers |
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