Effect of fiber treatments on tensile and thermal properties of starch/ethylene vinyl alcohol copolymers/coir biocomposites
Coir fibers received three treatments, namely washing with water, alkali treatment (mercerization) and bleaching. Treated fibers were incorporated in starch/ethylene vinyl alcohol copolymers (EVOH) blends. Mechanical and thermal properties of starch/EVOH/coir biocomposites were evaluated. Fiber morp...
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| Veröffentlicht in: | Bioresource technology 2009-11, Vol.100 (21), p.5196-5202 |
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| container_title | Bioresource technology |
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| creator | Rosa, Morsyleide F. Chiou, Bor-sen Medeiros, Eliton S. Wood, Delilah F. Williams, Tina G. Mattoso, Luiz H.C. Orts, William J. Imam, Syed H. |
| description | Coir fibers received three treatments, namely washing with water, alkali treatment (mercerization) and bleaching. Treated fibers were incorporated in starch/ethylene vinyl alcohol copolymers (EVOH) blends. Mechanical and thermal properties of starch/EVOH/coir biocomposites were evaluated. Fiber morphology and the fiber/matrix interface were further characterized by scanning electron microscopy (SEM). All treatments produced surface modifications and improved the thermal stability of the fibers and consequently of the composites. The best results were obtained for mercerized fibers where the tensile strength was increased by about 53% as compared to the composites with untreated fibers, and about 33.3% as compared to the composites without fibers. The mercerization improved fiber–matrix adhesion, allowing an efficient stress transfer from the matrix to the fibers. The increased adhesion between fiber and matrix was also observed by SEM. Treatment with water also improved values of Young’s modulus which were increased by about 75% as compared to the blends without the fibers. Thus, starch/EVOH blends reinforced with the treated fibers exhibited superior properties than neat starch/EVOH. |
| doi_str_mv | 10.1016/j.biortech.2009.03.085 |
| format | Article |
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Treated fibers were incorporated in starch/ethylene vinyl alcohol copolymers (EVOH) blends. Mechanical and thermal properties of starch/EVOH/coir biocomposites were evaluated. Fiber morphology and the fiber/matrix interface were further characterized by scanning electron microscopy (SEM). All treatments produced surface modifications and improved the thermal stability of the fibers and consequently of the composites. The best results were obtained for mercerized fibers where the tensile strength was increased by about 53% as compared to the composites with untreated fibers, and about 33.3% as compared to the composites without fibers. The mercerization improved fiber–matrix adhesion, allowing an efficient stress transfer from the matrix to the fibers. The increased adhesion between fiber and matrix was also observed by SEM. Treatment with water also improved values of Young’s modulus which were increased by about 75% as compared to the blends without the fibers. Thus, starch/EVOH blends reinforced with the treated fibers exhibited superior properties than neat starch/EVOH.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2009.03.085</identifier><identifier>PMID: 19560341</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Biocompatible Materials - chemistry ; Biocomposites ; Biological and medical sciences ; coir ; Coir fibers ; composite polymers ; Differential Thermal Analysis ; ethylene ; Fundamental and applied biological sciences. Psychology ; Lignin - analogs & derivatives ; Lignin - chemistry ; Lignin - ultrastructure ; Materials Testing ; Mechanical and thermal properties ; mechanical properties ; Microscopy, Electron, Scanning ; Natural fibers ; Polyvinyls - chemistry ; starch ; Starch - chemistry ; Surface treatment ; Temperature ; Tensile Strength ; thermal properties ; Thermogravimetry ; vinyl alcohol ; vinyl compounds</subject><ispartof>Bioresource technology, 2009-11, Vol.100 (21), p.5196-5202</ispartof><rights>2009</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c565t-321c2d7300708a89170e09cd1e839f38647f3affe7a8dccc5d19da0399347c703</citedby><cites>FETCH-LOGICAL-c565t-321c2d7300708a89170e09cd1e839f38647f3affe7a8dccc5d19da0399347c703</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0960852409006518$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21782148$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19560341$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Rosa, Morsyleide F.</creatorcontrib><creatorcontrib>Chiou, Bor-sen</creatorcontrib><creatorcontrib>Medeiros, Eliton S.</creatorcontrib><creatorcontrib>Wood, Delilah F.</creatorcontrib><creatorcontrib>Williams, Tina G.</creatorcontrib><creatorcontrib>Mattoso, Luiz H.C.</creatorcontrib><creatorcontrib>Orts, William J.</creatorcontrib><creatorcontrib>Imam, Syed H.</creatorcontrib><title>Effect of fiber treatments on tensile and thermal properties of starch/ethylene vinyl alcohol copolymers/coir biocomposites</title><title>Bioresource technology</title><addtitle>Bioresour Technol</addtitle><description>Coir fibers received three treatments, namely washing with water, alkali treatment (mercerization) and bleaching. Treated fibers were incorporated in starch/ethylene vinyl alcohol copolymers (EVOH) blends. Mechanical and thermal properties of starch/EVOH/coir biocomposites were evaluated. Fiber morphology and the fiber/matrix interface were further characterized by scanning electron microscopy (SEM). All treatments produced surface modifications and improved the thermal stability of the fibers and consequently of the composites. The best results were obtained for mercerized fibers where the tensile strength was increased by about 53% as compared to the composites with untreated fibers, and about 33.3% as compared to the composites without fibers. The mercerization improved fiber–matrix adhesion, allowing an efficient stress transfer from the matrix to the fibers. The increased adhesion between fiber and matrix was also observed by SEM. Treatment with water also improved values of Young’s modulus which were increased by about 75% as compared to the blends without the fibers. Thus, starch/EVOH blends reinforced with the treated fibers exhibited superior properties than neat starch/EVOH.</description><subject>Biocompatible Materials - chemistry</subject><subject>Biocomposites</subject><subject>Biological and medical sciences</subject><subject>coir</subject><subject>Coir fibers</subject><subject>composite polymers</subject><subject>Differential Thermal Analysis</subject><subject>ethylene</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Lignin - analogs & derivatives</subject><subject>Lignin - chemistry</subject><subject>Lignin - ultrastructure</subject><subject>Materials Testing</subject><subject>Mechanical and thermal properties</subject><subject>mechanical properties</subject><subject>Microscopy, Electron, Scanning</subject><subject>Natural fibers</subject><subject>Polyvinyls - chemistry</subject><subject>starch</subject><subject>Starch - chemistry</subject><subject>Surface treatment</subject><subject>Temperature</subject><subject>Tensile Strength</subject><subject>thermal properties</subject><subject>Thermogravimetry</subject><subject>vinyl alcohol</subject><subject>vinyl compounds</subject><issn>0960-8524</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU1v1DAQhiMEokvhLxRf4Jbs2E5i-waqyodUiQP0bHmdCfHKiYPtrbTiz-PVLnDsyZfn9bwzT1XdUGgo0H67b3YuxIx2ahiAaoA3ILtn1YZKwWumRP-82oDqoZYda6-qVyntAYBTwV5WV1R1PfCWbqrfd-OINpMwktHtMJIc0eQZl5xIWEjGJTmPxCwDyRPG2XiyxrBizA7TKZWyiXbaYp6OHhckj245emK8DVPwxIY1-OOMMW1tcJGU0jbMa0guY3pdvRiNT_jm8l5XD5_uftx-qe-_ff56-_G-tl3f5ZozatkgOIAAaaSiAhCUHShKrkYu-1aM3JQ1hJGDtbYbqBoMcKV4K6wAfl29P_9bmv86YMp6dsmi92bBcEi6Fx0wLvmTIAPRC9V2BezPoI0hpYijXqObTTxqCvrkR-_1Xz_65EcD18VPCd5cJhx2Mw7_YxchBXh3AUyyxo_RLNalfxyjQjLaysK9PXOjCdr8jIV5-M6A8jK8kxROW384E1hO--gw6mQdLhYHF4txPQT3VNs_gD-9WQ</recordid><startdate>20091101</startdate><enddate>20091101</enddate><creator>Rosa, Morsyleide F.</creator><creator>Chiou, Bor-sen</creator><creator>Medeiros, Eliton S.</creator><creator>Wood, Delilah F.</creator><creator>Williams, Tina G.</creator><creator>Mattoso, Luiz H.C.</creator><creator>Orts, William J.</creator><creator>Imam, Syed H.</creator><general>Elsevier Ltd</general><general>[New York, NY]: Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><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>7QO</scope><scope>7ST</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope><scope>7X8</scope></search><sort><creationdate>20091101</creationdate><title>Effect of fiber treatments on tensile and thermal properties of starch/ethylene vinyl alcohol copolymers/coir biocomposites</title><author>Rosa, Morsyleide F. ; Chiou, Bor-sen ; Medeiros, Eliton S. ; Wood, Delilah F. ; Williams, Tina G. ; Mattoso, Luiz H.C. ; Orts, William J. ; Imam, Syed H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c565t-321c2d7300708a89170e09cd1e839f38647f3affe7a8dccc5d19da0399347c703</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Biocompatible Materials - chemistry</topic><topic>Biocomposites</topic><topic>Biological and medical sciences</topic><topic>coir</topic><topic>Coir fibers</topic><topic>composite polymers</topic><topic>Differential Thermal Analysis</topic><topic>ethylene</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Lignin - analogs & derivatives</topic><topic>Lignin - chemistry</topic><topic>Lignin - ultrastructure</topic><topic>Materials Testing</topic><topic>Mechanical and thermal properties</topic><topic>mechanical properties</topic><topic>Microscopy, Electron, Scanning</topic><topic>Natural fibers</topic><topic>Polyvinyls - chemistry</topic><topic>starch</topic><topic>Starch - chemistry</topic><topic>Surface treatment</topic><topic>Temperature</topic><topic>Tensile Strength</topic><topic>thermal properties</topic><topic>Thermogravimetry</topic><topic>vinyl alcohol</topic><topic>vinyl compounds</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rosa, Morsyleide F.</creatorcontrib><creatorcontrib>Chiou, Bor-sen</creatorcontrib><creatorcontrib>Medeiros, Eliton S.</creatorcontrib><creatorcontrib>Wood, Delilah F.</creatorcontrib><creatorcontrib>Williams, Tina G.</creatorcontrib><creatorcontrib>Mattoso, Luiz H.C.</creatorcontrib><creatorcontrib>Orts, William J.</creatorcontrib><creatorcontrib>Imam, Syed H.</creatorcontrib><collection>AGRIS</collection><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>Biotechnology Research Abstracts</collection><collection>Environment Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Bioresource technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rosa, Morsyleide F.</au><au>Chiou, Bor-sen</au><au>Medeiros, Eliton S.</au><au>Wood, Delilah F.</au><au>Williams, Tina G.</au><au>Mattoso, Luiz H.C.</au><au>Orts, William J.</au><au>Imam, Syed H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of fiber treatments on tensile and thermal properties of starch/ethylene vinyl alcohol copolymers/coir biocomposites</atitle><jtitle>Bioresource technology</jtitle><addtitle>Bioresour Technol</addtitle><date>2009-11-01</date><risdate>2009</risdate><volume>100</volume><issue>21</issue><spage>5196</spage><epage>5202</epage><pages>5196-5202</pages><issn>0960-8524</issn><eissn>1873-2976</eissn><abstract>Coir fibers received three treatments, namely washing with water, alkali treatment (mercerization) and bleaching. Treated fibers were incorporated in starch/ethylene vinyl alcohol copolymers (EVOH) blends. Mechanical and thermal properties of starch/EVOH/coir biocomposites were evaluated. Fiber morphology and the fiber/matrix interface were further characterized by scanning electron microscopy (SEM). All treatments produced surface modifications and improved the thermal stability of the fibers and consequently of the composites. The best results were obtained for mercerized fibers where the tensile strength was increased by about 53% as compared to the composites with untreated fibers, and about 33.3% as compared to the composites without fibers. The mercerization improved fiber–matrix adhesion, allowing an efficient stress transfer from the matrix to the fibers. The increased adhesion between fiber and matrix was also observed by SEM. Treatment with water also improved values of Young’s modulus which were increased by about 75% as compared to the blends without the fibers. Thus, starch/EVOH blends reinforced with the treated fibers exhibited superior properties than neat starch/EVOH.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>19560341</pmid><doi>10.1016/j.biortech.2009.03.085</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Biocompatible Materials - chemistry Biocomposites Biological and medical sciences coir Coir fibers composite polymers Differential Thermal Analysis ethylene Fundamental and applied biological sciences. Psychology Lignin - analogs & derivatives Lignin - chemistry Lignin - ultrastructure Materials Testing Mechanical and thermal properties mechanical properties Microscopy, Electron, Scanning Natural fibers Polyvinyls - chemistry starch Starch - chemistry Surface treatment Temperature Tensile Strength thermal properties Thermogravimetry vinyl alcohol vinyl compounds |
| title | Effect of fiber treatments on tensile and thermal properties of starch/ethylene vinyl alcohol copolymers/coir biocomposites |
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