Corncob waste as a potential filler in biocomposites: A decision towards sustainability
Waste resource utilization is of utmost importance today in order to promote circular economy and sustainable development. The current research work focuses on utilizing post-consumer corncob (CC) waste into value-added products by exploring its potential as a filler/additive in polypropylene (PP) c...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-10-01
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| Series: | Composites Part C: Open Access |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666682022000809 |
| _version_ | 1798019650411298816 |
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| author | Sandeep Gairola Tejas Pramod Naik Shishir Sinha Inderdeep Singh |
| author_facet | Sandeep Gairola Tejas Pramod Naik Shishir Sinha Inderdeep Singh |
| author_sort | Sandeep Gairola |
| collection | DOAJ |
| description | Waste resource utilization is of utmost importance today in order to promote circular economy and sustainable development. The current research work focuses on utilizing post-consumer corncob (CC) waste into value-added products by exploring its potential as a filler/additive in polypropylene (PP) composites. If successful, the added fillers will substitute 5-20% PP without compromising the functional requirements of non-structural (non-load bearing) products. Corncob filler (CCF) at four-filler loadings (5, 10, 15, and 20 wt.%) and two variants of particle size (S1-100-355 µm and S2-355-710 µm) was melt-compounded using an extruder and then injection molded into composite samples. The effect of filler size and loading was investigated on water diffusion kinetics, mechanical, thermal, and flammability characteristics for analyzing the performance of developed materials during in-service conditions. Thermal and flammability characteristics were analyzed by thermo-gravimetric analysis (TGA), Ul-94 horizontal burning (HB), and limiting oxygen index (LOI) test. CCF-S1 exhibited better mechanical properties with higher tensile and flexural modulus than CCF-S2. For 10 wt. % loading, lower size (S1 filler) showed 5.85% and 2.94% increase in tensile and flexural modulus, respectively than higher filler size S2. CCF-S1 filled composites record lowered HB rate than S2 filler with no notable change in LOI values. The results revealed the possible reuse and utilization of CCF as a reinforcing filler at 10% loading with a filler size of 100-355 µm. The properties achieved using CCF and extrusion injection molding process are significant enough for non-structural applications such as paper weight, tableware, mementos etc. |
| first_indexed | 2024-04-11T16:42:48Z |
| format | Article |
| id | doaj.art-b4bd1fc4e20b4b68be15d2ff63a57ce1 |
| institution | Directory Open Access Journal |
| issn | 2666-6820 |
| language | English |
| last_indexed | 2024-04-11T16:42:48Z |
| publishDate | 2022-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Composites Part C: Open Access |
| spelling | doaj.art-b4bd1fc4e20b4b68be15d2ff63a57ce12022-12-22T04:13:37ZengElsevierComposites Part C: Open Access2666-68202022-10-019100317Corncob waste as a potential filler in biocomposites: A decision towards sustainabilitySandeep Gairola0Tejas Pramod Naik1Shishir Sinha2Inderdeep Singh3Centre of Excellence in Disaster Mitigation and Management, Indian Institute of Technology, Roorkee, IndiaMechanical and Industrial Engineering Department, Indian Institute of Technology, Roorkee, IndiaCentre of Excellence in Disaster Mitigation and Management, Indian Institute of Technology, Roorkee, India; Chemical Engineering Department, Indian Institute of Technology, Roorkee, IndiaCentre of Excellence in Disaster Mitigation and Management, Indian Institute of Technology, Roorkee, India; Mechanical and Industrial Engineering Department, Indian Institute of Technology, Roorkee, India; Corresponding author at: Mechanical and Industrial Engineering Department, Indian Institute of Technology Roorkee, Roorkee, India.Waste resource utilization is of utmost importance today in order to promote circular economy and sustainable development. The current research work focuses on utilizing post-consumer corncob (CC) waste into value-added products by exploring its potential as a filler/additive in polypropylene (PP) composites. If successful, the added fillers will substitute 5-20% PP without compromising the functional requirements of non-structural (non-load bearing) products. Corncob filler (CCF) at four-filler loadings (5, 10, 15, and 20 wt.%) and two variants of particle size (S1-100-355 µm and S2-355-710 µm) was melt-compounded using an extruder and then injection molded into composite samples. The effect of filler size and loading was investigated on water diffusion kinetics, mechanical, thermal, and flammability characteristics for analyzing the performance of developed materials during in-service conditions. Thermal and flammability characteristics were analyzed by thermo-gravimetric analysis (TGA), Ul-94 horizontal burning (HB), and limiting oxygen index (LOI) test. CCF-S1 exhibited better mechanical properties with higher tensile and flexural modulus than CCF-S2. For 10 wt. % loading, lower size (S1 filler) showed 5.85% and 2.94% increase in tensile and flexural modulus, respectively than higher filler size S2. CCF-S1 filled composites record lowered HB rate than S2 filler with no notable change in LOI values. The results revealed the possible reuse and utilization of CCF as a reinforcing filler at 10% loading with a filler size of 100-355 µm. The properties achieved using CCF and extrusion injection molding process are significant enough for non-structural applications such as paper weight, tableware, mementos etc.http://www.sciencedirect.com/science/article/pii/S2666682022000809CorncobLignocellulosicThermoplastic compositesFick's diffusionThermal stabilityFlammability |
| spellingShingle | Sandeep Gairola Tejas Pramod Naik Shishir Sinha Inderdeep Singh Corncob waste as a potential filler in biocomposites: A decision towards sustainability Composites Part C: Open Access Corncob Lignocellulosic Thermoplastic composites Fick's diffusion Thermal stability Flammability |
| title | Corncob waste as a potential filler in biocomposites: A decision towards sustainability |
| title_full | Corncob waste as a potential filler in biocomposites: A decision towards sustainability |
| title_fullStr | Corncob waste as a potential filler in biocomposites: A decision towards sustainability |
| title_full_unstemmed | Corncob waste as a potential filler in biocomposites: A decision towards sustainability |
| title_short | Corncob waste as a potential filler in biocomposites: A decision towards sustainability |
| title_sort | corncob waste as a potential filler in biocomposites a decision towards sustainability |
| topic | Corncob Lignocellulosic Thermoplastic composites Fick's diffusion Thermal stability Flammability |
| url | http://www.sciencedirect.com/science/article/pii/S2666682022000809 |
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