<i>Hedysarum coronarium</i><i>-Based</i> Green Composites Prepared by Compression Molding and Fused Deposition Modeling
In this work, an innovative green composite was produced by adding <i>Hedysarum coronarium</i> (HC) flour to a starch-based biodegradable polymer (Mater-Bi<sup>®</sup>, MB). The flour was obtained by grinding together stems, leaves and flowers and subsequently sieving it, sel...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/2/465 |
| _version_ | 1797492469557886976 |
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| author | Roberto Scaffaro Maria Clara Citarrella Emmanuel Fortunato Gulino Marco Morreale |
| author_facet | Roberto Scaffaro Maria Clara Citarrella Emmanuel Fortunato Gulino Marco Morreale |
| author_sort | Roberto Scaffaro |
| collection | DOAJ |
| description | In this work, an innovative green composite was produced by adding <i>Hedysarum coronarium</i> (HC) flour to a starch-based biodegradable polymer (Mater-Bi<sup>®</sup>, MB). The flour was obtained by grinding together stems, leaves and flowers and subsequently sieving it, selecting a fraction from 75 μm to 300 μm. Four formulations have been produced by compression molding (CM) and fused deposition modeling (FDM) by adding 5%, 10%, 15% and 20% of HC to MB. The influence of filler content on the processability was tested, and rheological, morphological and mechanical properties of composites were also assessed. Through CM, it was possible to obtain easily homogeneous samples with all filler amounts. Concerning FDM, 5% and 10% HC-filled composites proved also easily printable. Mechanical results showed filler effectively acted as reinforcement: Young’s modulus and tensile strengths of the composites increased from 74.3 MPa to 236 MPa and from 18.6 MPa to 33.4 MPa, respectively, when 20% of HC was added to the pure matrix. FDM samples, moreover, showed higher mechanical properties if compared with CM ones due to rectilinear infill and fibers orientation. In fact, regarding the 10% HC composites, Young’s modulus of the CM and FDM ones displayed a relative increment of 176% and 224%, respectively. |
| first_indexed | 2024-03-10T01:04:07Z |
| format | Article |
| id | doaj.art-0747b23fa9b94a8c871d85137e4287b6 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T01:04:07Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-0747b23fa9b94a8c871d85137e4287b62023-11-23T14:29:42ZengMDPI AGMaterials1996-19442022-01-0115246510.3390/ma15020465<i>Hedysarum coronarium</i><i>-Based</i> Green Composites Prepared by Compression Molding and Fused Deposition ModelingRoberto Scaffaro0Maria Clara Citarrella1Emmanuel Fortunato Gulino2Marco Morreale3Department of Engineering, University of Palermo, Viale delle Scienze, ed. 6, 90128 Palermo, ItalyDepartment of Engineering, University of Palermo, Viale delle Scienze, ed. 6, 90128 Palermo, ItalyDepartment of Engineering, University of Palermo, Viale delle Scienze, ed. 6, 90128 Palermo, ItalyFaculty of Engineering and Architecture, Kore University of Enna, Cittadella Universitaria, 94100 Enna, ItalyIn this work, an innovative green composite was produced by adding <i>Hedysarum coronarium</i> (HC) flour to a starch-based biodegradable polymer (Mater-Bi<sup>®</sup>, MB). The flour was obtained by grinding together stems, leaves and flowers and subsequently sieving it, selecting a fraction from 75 μm to 300 μm. Four formulations have been produced by compression molding (CM) and fused deposition modeling (FDM) by adding 5%, 10%, 15% and 20% of HC to MB. The influence of filler content on the processability was tested, and rheological, morphological and mechanical properties of composites were also assessed. Through CM, it was possible to obtain easily homogeneous samples with all filler amounts. Concerning FDM, 5% and 10% HC-filled composites proved also easily printable. Mechanical results showed filler effectively acted as reinforcement: Young’s modulus and tensile strengths of the composites increased from 74.3 MPa to 236 MPa and from 18.6 MPa to 33.4 MPa, respectively, when 20% of HC was added to the pure matrix. FDM samples, moreover, showed higher mechanical properties if compared with CM ones due to rectilinear infill and fibers orientation. In fact, regarding the 10% HC composites, Young’s modulus of the CM and FDM ones displayed a relative increment of 176% and 224%, respectively.https://www.mdpi.com/1996-1944/15/2/465green compositesbiocompositesFDMbiopolymersMater-Binatural filler |
| spellingShingle | Roberto Scaffaro Maria Clara Citarrella Emmanuel Fortunato Gulino Marco Morreale <i>Hedysarum coronarium</i><i>-Based</i> Green Composites Prepared by Compression Molding and Fused Deposition Modeling Materials green composites biocomposites FDM biopolymers Mater-Bi natural filler |
| title | <i>Hedysarum coronarium</i><i>-Based</i> Green Composites Prepared by Compression Molding and Fused Deposition Modeling |
| title_full | <i>Hedysarum coronarium</i><i>-Based</i> Green Composites Prepared by Compression Molding and Fused Deposition Modeling |
| title_fullStr | <i>Hedysarum coronarium</i><i>-Based</i> Green Composites Prepared by Compression Molding and Fused Deposition Modeling |
| title_full_unstemmed | <i>Hedysarum coronarium</i><i>-Based</i> Green Composites Prepared by Compression Molding and Fused Deposition Modeling |
| title_short | <i>Hedysarum coronarium</i><i>-Based</i> Green Composites Prepared by Compression Molding and Fused Deposition Modeling |
| title_sort | i hedysarum coronarium i i based i green composites prepared by compression molding and fused deposition modeling |
| topic | green composites biocomposites FDM biopolymers Mater-Bi natural filler |
| url | https://www.mdpi.com/1996-1944/15/2/465 |
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