EUCALYPTUS WOOD NANOFIBRILS AS REINFORCEMENT OF CARRAGEENAN AND STARCH BIOPOLYMERS FOR IMPROVEMENT OF PHYSICAL PROPERTIES
In tropical countries there are innumerous options of biodegradable polymers and lignocellulosic sources to produce green nanocomposites. The main drawback of carrageenan and starch application for packaging is their poor strength in high moisture conditions. However, blending and addition of cellul...
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| Veröffentlicht in: | Journal of tropical forest science 2018-07, Vol.30 (3), p.292-303 |
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| creator | Lopes, TA Bufalino, L Júnior MG Tonoli, GHD Mendes, LM |
| description | In tropical countries there are innumerous options of biodegradable polymers and lignocellulosic sources to produce green nanocomposites. The main drawback of carrageenan and starch application for packaging is their poor strength in high moisture conditions. However, blending and addition of cellulose nanofibrils may overcome the limitation. This investigation aimed to compare the physical strength of starch and carrageenan films, and to determine the best blending proportion of these biopolymers. In addition, a recommended load of eucalyptus cellulose nanofibrils, to produce nanocomposites with improved physical strength, was investigated. Carrageenan replaced starch at proportions 100, 80, 50, 20 and 0%. Cellulose nanofibrils were produced from eucalyptus sawdust and added to the films at 10, 20 and 30% loads. Carrageenan is more hydrophilic than starch, hence it should be applied up to 20% in blends. The increase of nanofibrils from 10 to 30% decreased water solubility and absorption, while density increased. A 10% load of nanofibrils was enough to decrease water vapor permeability. The physical strength of carrageenan for packaging may be improved by blending with starch and adding 30% of cellulose nanofibrils. |
| doi_str_mv | 10.26525/jtfs2018.30.3.292303 |
| format | Article |
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The main drawback of carrageenan and starch application for packaging is their poor strength in high moisture conditions. However, blending and addition of cellulose nanofibrils may overcome the limitation. This investigation aimed to compare the physical strength of starch and carrageenan films, and to determine the best blending proportion of these biopolymers. In addition, a recommended load of eucalyptus cellulose nanofibrils, to produce nanocomposites with improved physical strength, was investigated. Carrageenan replaced starch at proportions 100, 80, 50, 20 and 0%. Cellulose nanofibrils were produced from eucalyptus sawdust and added to the films at 10, 20 and 30% loads. Carrageenan is more hydrophilic than starch, hence it should be applied up to 20% in blends. The increase of nanofibrils from 10 to 30% decreased water solubility and absorption, while density increased. A 10% load of nanofibrils was enough to decrease water vapor permeability. The physical strength of carrageenan for packaging may be improved by blending with starch and adding 30% of cellulose nanofibrils.</description><identifier>ISSN: 0128-1283</identifier><identifier>EISSN: 2521-9847</identifier><identifier>DOI: 10.26525/jtfs2018.30.3.292303</identifier><language>eng</language><publisher>Kuala Lumpur: FOREST RESEARCH INSTITUTE MALAYSIA</publisher><subject>Biodegradability ; Biodegradation ; Biopolymers ; Blending ; Carbohydrates ; Carrageenan ; Cassava ; Cellulose ; Ecosystems ; Eucalyptus ; Glycerol ; Investigations ; Lignocellulose ; Load ; Moisture content ; Nanocomposites ; Packaging ; Permeability ; Physical properties ; Polymers ; Renewable resources ; Sawdust ; Starch ; Strength ; Water vapor ; Wood</subject><ispartof>Journal of tropical forest science, 2018-07, Vol.30 (3), p.292-303</ispartof><rights>Forest Research Institute Malaysia</rights><rights>Copyright Forest Research Institute Malaysia Jul 2018</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c350t-e1fff62a6b2ccb4d940eca90a538d0620d9d519d3912688f96d46f8ed937f39a3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/26512514$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/26512514$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,27901,27902,57992,58225</link.rule.ids></links><search><creatorcontrib>Lopes, TA</creatorcontrib><creatorcontrib>Bufalino, L</creatorcontrib><creatorcontrib>Júnior MG</creatorcontrib><creatorcontrib>Tonoli, GHD</creatorcontrib><creatorcontrib>Mendes, LM</creatorcontrib><title>EUCALYPTUS WOOD NANOFIBRILS AS REINFORCEMENT OF CARRAGEENAN AND STARCH BIOPOLYMERS FOR IMPROVEMENT OF PHYSICAL PROPERTIES</title><title>Journal of tropical forest science</title><description>In tropical countries there are innumerous options of biodegradable polymers and lignocellulosic sources to produce green nanocomposites. The main drawback of carrageenan and starch application for packaging is their poor strength in high moisture conditions. However, blending and addition of cellulose nanofibrils may overcome the limitation. This investigation aimed to compare the physical strength of starch and carrageenan films, and to determine the best blending proportion of these biopolymers. In addition, a recommended load of eucalyptus cellulose nanofibrils, to produce nanocomposites with improved physical strength, was investigated. Carrageenan replaced starch at proportions 100, 80, 50, 20 and 0%. Cellulose nanofibrils were produced from eucalyptus sawdust and added to the films at 10, 20 and 30% loads. Carrageenan is more hydrophilic than starch, hence it should be applied up to 20% in blends. The increase of nanofibrils from 10 to 30% decreased water solubility and absorption, while density increased. A 10% load of nanofibrils was enough to decrease water vapor permeability. The physical strength of carrageenan for packaging may be improved by blending with starch and adding 30% of cellulose nanofibrils.</description><subject>Biodegradability</subject><subject>Biodegradation</subject><subject>Biopolymers</subject><subject>Blending</subject><subject>Carbohydrates</subject><subject>Carrageenan</subject><subject>Cassava</subject><subject>Cellulose</subject><subject>Ecosystems</subject><subject>Eucalyptus</subject><subject>Glycerol</subject><subject>Investigations</subject><subject>Lignocellulose</subject><subject>Load</subject><subject>Moisture content</subject><subject>Nanocomposites</subject><subject>Packaging</subject><subject>Permeability</subject><subject>Physical properties</subject><subject>Polymers</subject><subject>Renewable resources</subject><subject>Sawdust</subject><subject>Starch</subject><subject>Strength</subject><subject>Water 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WOOD NANOFIBRILS AS REINFORCEMENT OF CARRAGEENAN AND STARCH BIOPOLYMERS FOR IMPROVEMENT OF PHYSICAL PROPERTIES</title><author>Lopes, TA ; Bufalino, L ; Júnior MG ; Tonoli, GHD ; Mendes, LM</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c350t-e1fff62a6b2ccb4d940eca90a538d0620d9d519d3912688f96d46f8ed937f39a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Biodegradability</topic><topic>Biodegradation</topic><topic>Biopolymers</topic><topic>Blending</topic><topic>Carbohydrates</topic><topic>Carrageenan</topic><topic>Cassava</topic><topic>Cellulose</topic><topic>Ecosystems</topic><topic>Eucalyptus</topic><topic>Glycerol</topic><topic>Investigations</topic><topic>Lignocellulose</topic><topic>Load</topic><topic>Moisture content</topic><topic>Nanocomposites</topic><topic>Packaging</topic><topic>Permeability</topic><topic>Physical 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science</jtitle><date>2018-07-01</date><risdate>2018</risdate><volume>30</volume><issue>3</issue><spage>292</spage><epage>303</epage><pages>292-303</pages><issn>0128-1283</issn><eissn>2521-9847</eissn><abstract>In tropical countries there are innumerous options of biodegradable polymers and lignocellulosic sources to produce green nanocomposites. The main drawback of carrageenan and starch application for packaging is their poor strength in high moisture conditions. However, blending and addition of cellulose nanofibrils may overcome the limitation. This investigation aimed to compare the physical strength of starch and carrageenan films, and to determine the best blending proportion of these biopolymers. In addition, a recommended load of eucalyptus cellulose nanofibrils, to produce nanocomposites with improved physical strength, was investigated. Carrageenan replaced starch at proportions 100, 80, 50, 20 and 0%. Cellulose nanofibrils were produced from eucalyptus sawdust and added to the films at 10, 20 and 30% loads. Carrageenan is more hydrophilic than starch, hence it should be applied up to 20% in blends. The increase of nanofibrils from 10 to 30% decreased water solubility and absorption, while density increased. A 10% load of nanofibrils was enough to decrease water vapor permeability. The physical strength of carrageenan for packaging may be improved by blending with starch and adding 30% of cellulose nanofibrils.</abstract><cop>Kuala Lumpur</cop><pub>FOREST RESEARCH INSTITUTE MALAYSIA</pub><doi>10.26525/jtfs2018.30.3.292303</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0128-1283 |
| ispartof | Journal of tropical forest science, 2018-07, Vol.30 (3), p.292-303 |
| issn | 0128-1283 2521-9847 |
| language | eng |
| recordid | cdi_proquest_journals_2133764430 |
| source | Jstor Complete Legacy; EZB-FREE-00999 freely available EZB journals |
| subjects | Biodegradability Biodegradation Biopolymers Blending Carbohydrates Carrageenan Cassava Cellulose Ecosystems Eucalyptus Glycerol Investigations Lignocellulose Load Moisture content Nanocomposites Packaging Permeability Physical properties Polymers Renewable resources Sawdust Starch Strength Water vapor Wood |
| title | EUCALYPTUS WOOD NANOFIBRILS AS REINFORCEMENT OF CARRAGEENAN AND STARCH BIOPOLYMERS FOR IMPROVEMENT OF PHYSICAL PROPERTIES |
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