Mixed Rigid and Flexible Component Design for High-Performance Polyimide Films
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Methods
2.2.1. Infrared Spectroscopic Analysis
2.2.2. Morphology and Structural Analysis
2.2.3. Thermal Analysis
2.2.4. Mechanical Analysis
2.2.5. Adhesion Properties
2.2.6. Synthesis of PAA Precursors
2.2.7. Thermal Imidization of PAA Films
3. Results
3.1. Synthesis of PAAs and Fabrication of PI Films
3.2. Viscosities of PAAs and FTIR Analysis of the PI Films
3.3. Morphology and Structures
3.4. Thermal Properties
3.5. Adhesion Properties of PI-80/Copper Laminate
3.6. Mechanical Properties
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Samples | ηinh 1 (dL/g) | Tg 2 (°C) | Td5% 3 (°C) | R800 4 (%) | Water absorption (%) | |
---|---|---|---|---|---|---|
DSC | DMA | |||||
PI-0 | 1.85 | 278 | 296 | 523 | 54.2 | 2.0 |
PI-20 | 2.06 | 307 | 328 | 527 | 59.7 | 2.3 |
PI-40 | 2.20 | 314 | 334 | 522 | 61.7 | 2.5 |
PI-60 | 2.25 | 343 | 340 | 521 | 56.1 | 2.9 |
PI-80 | 2.30 | NF 5 | 371 | 523 | 62.7 | 2.5 |
PI-100 | 2.15 | NF | 397 | 529 | 65.6 | 3.0 |
Samples | CTE (50–250 °C) ppm/K | CTE (50–300 °C) ppm/K | CTE (100–200 °C) ppm/K |
---|---|---|---|
PI-0 | 67.9 | 82.0 | 76.2 |
PI-20 | 53.3 | 55.8 | 54.5 |
PI-40 | 37.8 | 38.6 | 38.9 |
PI-60 | 24.4 | 25.6 | 24.4 |
PI-80 | 19.0 | 19.6 | 18.8 |
PI-100 | 15.2 | 15.9 | 15.4 |
Cu | 19.0 | 19.4 | 18.6 |
Kapton | 33.5 | 34.2 | 33.0 |
Upilex | 44.9 | 55.3 | 43.4 |
Samples | Elastic (GPa) | Max stress (MPa) | Break strain (%) |
---|---|---|---|
PI-0 | 3.4 ± 0.05 | 146.0 ± 1.9 | 16.6 ± 4.9 |
PI-20 | 3.8 ± 0.14 | 157.8 ± 3.4 | 21.5 ± 8.7 |
PI-40 | 4.9 ± 0.16 | 173.3 ± 4.8 | 9.4 ± 3.8 |
PI-60 | 5.8 ± 0.07 | 205.6 ± 8.8 | 7.3 ± 1.0 |
PI-80 | 5.7 ± 0.48 | 209.0 ± 5.9 | 6.2 ± 0.4 |
PI-100 | 6.2 ± 0.37 | 220.8 ± 10.0 | 6.8 ± 1.2 |
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Yu, X.; Liang, W.; Cao, J.; Wu, D. Mixed Rigid and Flexible Component Design for High-Performance Polyimide Films. Polymers 2017, 9, 451. https://doi.org/10.3390/polym9090451
Yu X, Liang W, Cao J, Wu D. Mixed Rigid and Flexible Component Design for High-Performance Polyimide Films. Polymers. 2017; 9(9):451. https://doi.org/10.3390/polym9090451
Chicago/Turabian StyleYu, Xiaohui, Weihua Liang, Jianhua Cao, and Dayong Wu. 2017. "Mixed Rigid and Flexible Component Design for High-Performance Polyimide Films" Polymers 9, no. 9: 451. https://doi.org/10.3390/polym9090451