Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass
Biocomposites based on polylactic acid (PLA), tall wheatgrass (TWG), and hemp (H) were made by injection molding. The article discusses the impact of the agrofiller content on the composite properties, including thermal (DSC, DMA, and TG) and mechanical characteristics (tensile modulus, tensile stre...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/21/6923 |
| _version_ | 1797631674610089984 |
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| author | Cezary Gozdecki Krzysztof Moraczewski Marek Kociszewski |
| author_facet | Cezary Gozdecki Krzysztof Moraczewski Marek Kociszewski |
| author_sort | Cezary Gozdecki |
| collection | DOAJ |
| description | Biocomposites based on polylactic acid (PLA), tall wheatgrass (TWG), and hemp (H) were made by injection molding. The article discusses the impact of the agrofiller content on the composite properties, including thermal (DSC, DMA, and TG) and mechanical characteristics (tensile modulus, tensile strength, and impact strength). Generally, the introduction of a plant filler into the polylactide matrix reduced the thermal resistance of the resulting composites. Plant fillers influenced primarily the cold crystallization process, probably due to their nucleating properties. The addition of fillers to the PLA matrix resulted in an increased storage modulus across all tested temperatures compared to pure PLA. In the case of a composite with 50% of plant fillers, it was almost 118%. The mechanical properties of the tested composites depended significantly on the amount of plant filler used. It was observed that adding 50% of plant filler to PLA led to a twofold increase in tensile modulus and a decrease in tensile strength and impact strength by an average of 23 and 70%, respectively. It was determined that composites incorporating tall wheatgrass (TWG) particles exhibited a slightly elevated tensile modulus while showcasing a marginally reduced strength and impact resistance in comparison to composites containing hemp (H) components. |
| first_indexed | 2024-03-11T11:26:40Z |
| format | Article |
| id | doaj.art-b7765f9164274134a00890124b7c9f7c |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T11:26:40Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-b7765f9164274134a00890124b7c9f7c2023-11-10T15:07:20ZengMDPI AGMaterials1996-19442023-10-011621692310.3390/ma16216923Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall WheatgrassCezary Gozdecki0Krzysztof Moraczewski1Marek Kociszewski2Faculty of Materials Engineering, Kazimierz Wielki University in Bydgoszcz, ul. Chodkiewicza 30, 85-064 Bydgoszcz, PolandFaculty of Materials Engineering, Kazimierz Wielki University in Bydgoszcz, ul. Chodkiewicza 30, 85-064 Bydgoszcz, PolandFaculty of Materials Engineering, Kazimierz Wielki University in Bydgoszcz, ul. Chodkiewicza 30, 85-064 Bydgoszcz, PolandBiocomposites based on polylactic acid (PLA), tall wheatgrass (TWG), and hemp (H) were made by injection molding. The article discusses the impact of the agrofiller content on the composite properties, including thermal (DSC, DMA, and TG) and mechanical characteristics (tensile modulus, tensile strength, and impact strength). Generally, the introduction of a plant filler into the polylactide matrix reduced the thermal resistance of the resulting composites. Plant fillers influenced primarily the cold crystallization process, probably due to their nucleating properties. The addition of fillers to the PLA matrix resulted in an increased storage modulus across all tested temperatures compared to pure PLA. In the case of a composite with 50% of plant fillers, it was almost 118%. The mechanical properties of the tested composites depended significantly on the amount of plant filler used. It was observed that adding 50% of plant filler to PLA led to a twofold increase in tensile modulus and a decrease in tensile strength and impact strength by an average of 23 and 70%, respectively. It was determined that composites incorporating tall wheatgrass (TWG) particles exhibited a slightly elevated tensile modulus while showcasing a marginally reduced strength and impact resistance in comparison to composites containing hemp (H) components.https://www.mdpi.com/1996-1944/16/21/6923biocompositePLAhemptall wheatgrassmechanical propertiesDSC |
| spellingShingle | Cezary Gozdecki Krzysztof Moraczewski Marek Kociszewski Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass Materials biocomposite PLA hemp tall wheatgrass mechanical properties DSC |
| title | Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass |
| title_full | Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass |
| title_fullStr | Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass |
| title_full_unstemmed | Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass |
| title_short | Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass |
| title_sort | thermal and mechanical properties of biocomposites based on polylactide and tall wheatgrass |
| topic | biocomposite PLA hemp tall wheatgrass mechanical properties DSC |
| url | https://www.mdpi.com/1996-1944/16/21/6923 |
| work_keys_str_mv | AT cezarygozdecki thermalandmechanicalpropertiesofbiocompositesbasedonpolylactideandtallwheatgrass AT krzysztofmoraczewski thermalandmechanicalpropertiesofbiocompositesbasedonpolylactideandtallwheatgrass AT marekkociszewski thermalandmechanicalpropertiesofbiocompositesbasedonpolylactideandtallwheatgrass |