The Use of Nanoscale Montmorillonite (MMT) as Reinforcement for Polylactide Acid (PLA) Prepared by Fused Deposition Modeling (FDM)—Comparative Study with Biocarbon and Talc Fillers
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
- −
- PLA—Poly(lactic acid) granules, variety Ingeo 2500D (NatureWorks, Minetonka, Minneapolis, MN, USA), MFI = 8 g/10 min (210 °C; 2.16 kg),
- −
- MMT—Montmorillonite nano-clay from Sigma-Aldrich, particles were surface-treated with 0.5–5 wt% aminopropyltriethoxysilane, 15–35 wt% octadecylamine,
- −
- Talc—the talcum clay filler (magnesium hydrogen metasilicate), producer: Biomus,
- −
- BC—Biocarbon powder, obtained during the pyrolysis process at 650 °C, particular filler was prepared from the wood chips. Before using the filler was ball milled for 24 h, the procedure and properties of biochar was described in our previous work [23]. Producer: Fluid S.A.
2.2. Sample Preparation
2.3. Characterization
3. Results
3.1. Composite Structure Evaluation—SEM Observations
3.2. Mechanical Performance—Static Tensile/Flexural Tests and Impact Resistance Measurements
3.3. Thermomechanical Properties—DMTA Analysis and HDT/Vicat Tests
Sample | HDT (0.455 MPa) [°C] | VST * (10 N) [°C] | C Factor [–] |
---|---|---|---|
PLA | 62.0 ± 0.3 | 68.1 ± 0.9 | 1.00 |
PLA/1MMT | 57.3 ± 0.8 | 67.3 ± 2.1 | 1.10 |
PLA/2MMT | 61.7 ± 0.1 | 69.4 ± 0.1 | 0.81 |
PLA/5MMT | 62.2 ± 0.9 | 73.6 ± 4.0 | 0.03 |
PLA/10BC | 57.8 ± 0.2 | 66.4 ± 0.6 | 0.77 |
PLA/20BC | 63.4 ± 0.4 | 72.1 ± 0.3 | 0.64 |
PLA/10Talc | 59.5 ± 1.1 | 67.0 ± 3.4 | 0.95 |
PLA/20Talc | 60.7 ± 0.3 | 69.8 ± 0.1 | 0.13 |
3.4. DSC Analysis
4. Discussion and Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Conflicts of Interest
References
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Sample | MMT [%] | BC [%] | Talc [%] |
---|---|---|---|
PLA | - | - | - |
PLA/1MMT | 1 | - | - |
PLA/2MMT | 2 | - | - |
PLA/5MMT | 5 | - | - |
PLA/10BC | - | 10 | - |
PLA/20BC | - | 20 | - |
PLA/10Talc | - | - | 10 |
PLA/20Talc | - | - | 20 |
Sample | Density (Calculated) [g/cm3] | Density (of Filament) [g/cm3] | Density (of FDM Part) [g/cm3] | Porosity (of FDM Part) [%] |
---|---|---|---|---|
PLA | 1.25 * | 1.247 (±0.005) | 1.203 (±0.034) | 3.9 |
PLA/1MMT | 1.26 | 1.245 (±0.015) | 1.214 (±0.031) | 3.6 |
PLA/2MMT | 1.26 | 1.246 (±0.008) | 1.218 (±0.047) | 3.3 |
PLA/5MMT | 1.28 | 1.269 (±0.011) | 1.231 (±0.010) | 3.8 |
PLA/10BC | 1.28 | 1.267 (±0.014) | 1.235 (±0.021) | 3.5 |
PLA/20BC | 1.31 | 1.297 (±0.009) | 1.261 (±0.042) | 3.7 |
PLA/10Talc | 1.32 | 1.313 (±0.011) | 1.278 (±0.038) | 3.2 |
PLA/20Talc | 1.41 | 1.394 (±0.007) | 1.337 (±0.054) | 5.2 |
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Andrzejewski, J.; Markowski, M.; Barczewski, M. The Use of Nanoscale Montmorillonite (MMT) as Reinforcement for Polylactide Acid (PLA) Prepared by Fused Deposition Modeling (FDM)—Comparative Study with Biocarbon and Talc Fillers. Materials 2022, 15, 5205. https://doi.org/10.3390/ma15155205
Andrzejewski J, Markowski M, Barczewski M. The Use of Nanoscale Montmorillonite (MMT) as Reinforcement for Polylactide Acid (PLA) Prepared by Fused Deposition Modeling (FDM)—Comparative Study with Biocarbon and Talc Fillers. Materials. 2022; 15(15):5205. https://doi.org/10.3390/ma15155205
Chicago/Turabian StyleAndrzejewski, Jacek, Mateusz Markowski, and Mateusz Barczewski. 2022. "The Use of Nanoscale Montmorillonite (MMT) as Reinforcement for Polylactide Acid (PLA) Prepared by Fused Deposition Modeling (FDM)—Comparative Study with Biocarbon and Talc Fillers" Materials 15, no. 15: 5205. https://doi.org/10.3390/ma15155205