Lignin and biodegradable polymer blends with chemically treated biofiller for green thermoplastic composites
This study investigated the development of thermoplastic composites by incorporating crude lignin extracted from coir fiber waste, into poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), a biodegradable polymer. The extracted crude lignin was blended with PHBV as a matrix, and spent coffee grounds...
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| Format: | Article |
| Language: | English |
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Budapest University of Technology
2025-03-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0013186&mi=cd |
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| author | Waleed Y. Rizg Amerh Aiad Alahmadi Mohammed Baradwan Rahul Dev Bairwan Marwan M Ahmed K. Mohamed Sherif El Saadany CK Abdullah H.P.S. Abdul Khalil |
| author_facet | Waleed Y. Rizg Amerh Aiad Alahmadi Mohammed Baradwan Rahul Dev Bairwan Marwan M Ahmed K. Mohamed Sherif El Saadany CK Abdullah H.P.S. Abdul Khalil |
| author_sort | Waleed Y. Rizg |
| collection | DOAJ |
| description | This study investigated the development of thermoplastic composites by incorporating crude lignin extracted from coir fiber waste, into poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), a biodegradable polymer. The extracted crude lignin was blended with PHBV as a matrix, and spent coffee grounds (SCG) were used as biofillers. SCG were chemically modified through sodium hydroxide (NaOH) treatment and maleic anhydride (MA) grafting to enhance their compatibility with the PHBV/lignin blend. Raw and modified SCG were characterized for their functional, morphological, and thermal properties before being incorporated. Thermoplastic biocomposites were prepared via melt compounding and compression molding and evaluated for water barrier, morphological, mechanical, and thermal properties. Results showed that MA-grafted SCG significantly enhanced PHBV-lignin properties, increasing tensile strength by 23.7% and thermal stability by 11.9% compared to the control matrix. Optimal performance was observed at 5% MA-grafted SCG filler loading. However, higher SCG concentrations (7%) led to filler agglomeration, negatively affecting the material properties. This research demonstrated the potential of utilizing agricultural and food waste to create high-performance thermoplastic composites for future applications in biodegradable packaging, contributing to the advancement of a circular economy and environmental sustainability. |
| format | Article |
| id | doaj-art-3f4b680cfe844410a46360b9cdc5168e |
| institution | Kabale University |
| issn | 1788-618X |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Budapest University of Technology |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-3f4b680cfe844410a46360b9cdc5168e2025-01-23T14:54:55ZengBudapest University of TechnologyeXPRESS Polymer Letters1788-618X2025-03-0119329431010.3144/expresspolymlett.2025.21Lignin and biodegradable polymer blends with chemically treated biofiller for green thermoplastic compositesWaleed Y. RizgAmerh Aiad AlahmadiMohammed BaradwanRahul Dev BairwanMarwan MAhmed K. MohamedSherif El SaadanyCK AbdullahH.P.S. Abdul KhalilThis study investigated the development of thermoplastic composites by incorporating crude lignin extracted from coir fiber waste, into poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), a biodegradable polymer. The extracted crude lignin was blended with PHBV as a matrix, and spent coffee grounds (SCG) were used as biofillers. SCG were chemically modified through sodium hydroxide (NaOH) treatment and maleic anhydride (MA) grafting to enhance their compatibility with the PHBV/lignin blend. Raw and modified SCG were characterized for their functional, morphological, and thermal properties before being incorporated. Thermoplastic biocomposites were prepared via melt compounding and compression molding and evaluated for water barrier, morphological, mechanical, and thermal properties. Results showed that MA-grafted SCG significantly enhanced PHBV-lignin properties, increasing tensile strength by 23.7% and thermal stability by 11.9% compared to the control matrix. Optimal performance was observed at 5% MA-grafted SCG filler loading. However, higher SCG concentrations (7%) led to filler agglomeration, negatively affecting the material properties. This research demonstrated the potential of utilizing agricultural and food waste to create high-performance thermoplastic composites for future applications in biodegradable packaging, contributing to the advancement of a circular economy and environmental sustainability.http://www.expresspolymlett.com/letolt.php?file=EPL-0013186&mi=cd biopolymer mechanical propertiesblends compression moulding |
| spellingShingle | Waleed Y. Rizg Amerh Aiad Alahmadi Mohammed Baradwan Rahul Dev Bairwan Marwan M Ahmed K. Mohamed Sherif El Saadany CK Abdullah H.P.S. Abdul Khalil Lignin and biodegradable polymer blends with chemically treated biofiller for green thermoplastic composites eXPRESS Polymer Letters biopolymer mechanical properties blends compression moulding |
| title | Lignin and biodegradable polymer blends with chemically treated biofiller for green thermoplastic composites |
| title_full | Lignin and biodegradable polymer blends with chemically treated biofiller for green thermoplastic composites |
| title_fullStr | Lignin and biodegradable polymer blends with chemically treated biofiller for green thermoplastic composites |
| title_full_unstemmed | Lignin and biodegradable polymer blends with chemically treated biofiller for green thermoplastic composites |
| title_short | Lignin and biodegradable polymer blends with chemically treated biofiller for green thermoplastic composites |
| title_sort | lignin and biodegradable polymer blends with chemically treated biofiller for green thermoplastic composites |
| topic | biopolymer mechanical properties blends compression moulding |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0013186&mi=cd |
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