Scalable Silicone Composites for Thermal Management in Flexible Stretchable Electronics
Abstract
:1. Introduction
2. Experimental Part
2.1. Materials
2.2. Measurements
2.3. Procedure
2.3.1. Surface Treatment of the hBN with D4 (BND4)
2.3.2. Exfoliation of hBN Aggregates (BND4Ex)
2.3.3. Preparation of PDMS-BN Composites
3. Result and Discussion
3.1. Filler Processing and Characterization
3.2. Preparation of PDMS-BN Composites
3.3. Characterization of the Obtained PDMS-BN Composites
3.3.1. Analysis of the Internal Morphology of Crosslinked Composites
3.3.2. Study of Mechanical Behavior
3.3.3. Study of Dielectric Behavior
3.3.4. Thermal Conductivity Assessment
- Commercial thermal paste:
- PDMS-BND4Ex-10 as thermal paste:
- PDMS-BND4Ex-50 as thermal paste:
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Sample Labeling | PDMS, pph | BN, pph | DBTDL, wt% | TEOS, wt% | ||
---|---|---|---|---|---|---|
BN | BND4 | BND4Ex | ||||
PDMS | 100 | - | - | - | 0.85 | 5.0 |
PDMS-BN-10 | 90 | 10 | - | - | ||
PDMS-BN-30 | 70 | 30 | - | |||
PDMS-BN-50 | 50 | 50 | - | |||
PDMS-BND4-10 | 90 | - | 10 | - | ||
PDMS-BND4-30 | 70 | - | 30 | - | ||
PDMS-BND4-50 | 50 | - | 50 | - | ||
PDMS-BND4Ex-10 | 90 | - | - | 10 | ||
PDMS-BND4Ex-30 | 70 | - | - | 30 | ||
PDMS-BND4Ex-50 | 50 | - | - | 50 |
Sample | Mechanical Data (ASTM D 412-06a) | Dielectrical Data (at 1 Hz) | UTT h | |||||
---|---|---|---|---|---|---|---|---|
Sm a, % | Y b, MPa | Tnm c, MPa | εr d | Ε″ e | Σ f, S/cm | Cp g, F | kJ/m3 | |
PDMS | 213 | 0.24 | 0.22 | 3 | 0.25024 | 1.04 × 10−13 | 8.15 × 10−12 | 3.0 |
PDMS-BN-10 | 135 | 0.4 | 0.23 | 4.2 | 0.04638 | 2.63 × 10−14 | 6.08 × 10−12 | 1.8 |
PDMS-BN-30 | 270 | 0.7 | 1.02 | 4.1 | 0.18628 | 1.06 × 10−13 | 6.82 × 10−12 | 13.5 |
PDMS-BN-50 | 245 | 0.81 | 0.8 | 4.4 | 0.05216 | 2.96 × 10−14 | 6.21 × 10−12 | 10.7 |
PDMS-BND4-10 | 250 | 0.25 | 0.52 | 5.1 | 0.00277 | 1.38 × 10−11 | 4.81 × 10−12 | 4.5 |
PDMS-BND4-30 | 240 | 0.88 | 95 | 4.8 | 0.00123 | 6.18 × 10−12 | 7.85 × 10−12 | 11.5 |
PDMS-BND4-50 | 260 | 1.16 | 1.24 | 4.6 | 0.05072 | 2.88 × 10−14 | 7.84 × 10−12 | 16.5 |
PDMS-BND4Ex-10 | 370 | 0.38 | 0.6 | 3.8 | 6.88 × 10−4 | 3.44 × 10−12 | 9.47 × 10−12 | 11.3 |
PDMS-BND4Ex-30 | 400 | 0.7 | 1.23 | 3.8 | 4.65 × 10−4 | 2.33 × 10−12 | 7.73 × 10−12 | 24.3 |
PDMS-BND4Ex-50 | 400 | 1.14 | 1.53 | 3.6 | 0.00234 | 1.17 × 10−11 | 7.51 × 10−12 | 33.0 |
Composite Sample | Thermal Conductivity, W·K−1·m−1 | Conductance, W·K−1 | Reference |
---|---|---|---|
PDMS | 0.082 | This study | |
PDMS-BN-10 | 1.887 | 0.012 | This study |
PDMS-BN-30 | 2.062 | 0.013 | |
PDMS-BN-50 | 2.753 | 0.018 | |
PDMS-BND4-10 | 1.091 | 0.007 | This study |
PDMS-BND4-30 | 1.675 | 0.011 | |
PDMS-BND4-50 | 1.994 | 0.013 | |
PDMS-BND4Ex-10 | 3.543 | 0.023 | This study |
PDMS-BND4Ex-30 | 2.259 | 0.014 | |
PDMS-BND4Ex-50 | 2.018 | 0.013 | |
CPCM * | 1.968 | - | [13] |
SCPCM ** | 2.899 | - | [13] |
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Stiubianu, G.-T.; Bele, A.; Grigoras, M.; Tugui, C.; Ciubotaru, B.-I.; Zaltariov, M.-F.; Borza, F.; Bujoreanu, L.-G.; Cazacu, M. Scalable Silicone Composites for Thermal Management in Flexible Stretchable Electronics. Batteries 2022, 8, 95. https://doi.org/10.3390/batteries8080095
Stiubianu G-T, Bele A, Grigoras M, Tugui C, Ciubotaru B-I, Zaltariov M-F, Borza F, Bujoreanu L-G, Cazacu M. Scalable Silicone Composites for Thermal Management in Flexible Stretchable Electronics. Batteries. 2022; 8(8):95. https://doi.org/10.3390/batteries8080095
Chicago/Turabian StyleStiubianu, George-Theodor, Adrian Bele, Marian Grigoras, Codrin Tugui, Bianca-Iulia Ciubotaru, Mirela-Fernanda Zaltariov, Firuța Borza, Leandru-Gheorghe Bujoreanu, and Maria Cazacu. 2022. "Scalable Silicone Composites for Thermal Management in Flexible Stretchable Electronics" Batteries 8, no. 8: 95. https://doi.org/10.3390/batteries8080095