Structural Parameters Affecting Electrothermal Properties of Woolen Knitted Fabrics Integrated with Silver-Coated Yarns
Abstract
:1. Introduction
2. Theoretical Analysis
2.1. Input Power
2.2. Heat Loss
2.3. Equilibrium Temperature
3. Experimental Procedures
3.1. Materials
3.2. Sample Preparation
3.3. Method
3.4. Experiment 1: Resistance Measurements of Samples
3.5. Experiment 2: Simultaneous Testing of the Resistance and Temperature of Samples
4. Results and Discussion
4.1. Experiment 1
4.2. Experiment 2
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Material | Yarn Count | Composition | Linear Resistance | Supplier |
---|---|---|---|---|
Silver-coated yarn A | 47 tex | Nylon 66 coated with silver | 1 Ω/cm | Germany Statex Produktions and Vertriebs GmbH |
Silver-coated yarn B | 2 tex | Nylon 6 coated with silver | 69 Ω/cm | |
Wool | 77 tex | 100% merino wool | Nonconductive | HongTai Cashmere Production Company |
Polyester yarn | 22 tex | Polyester fiber | Nonconductive | Tongxiang Tonglun Textile Co., Ltd. |
Sample No. | Number of Transverse Knitting Stitches (pcs) | Number of Longitudinal Knitting Stitches (pcs) | Total Number of Stitches | NP Value (Related to Tension) | Pulling Value |
---|---|---|---|---|---|
S1 | 6 | 9 | 54 | 90 | 10 |
S2 | 5 | 15 | 75 | 82 | 10 |
S3 | 8 | 20 | 160 | 80 | 10 |
S4 | 10 | 10 | 100 | 70 | 10 |
S5 | 6 | 17 | 102 | 85 | 10 |
S6 | 6 | 20 | 120 | 85 | 10 |
Voltage | 1 V | 2 V | 3 V | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Sample No. | 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | |
S1 | RV | 16.78 | 16.77 | 16.75 | 16.89 | 16.72 | 16.58 | 16.57 | 16.29 | 16.09 |
X ± SD | 16.77 ± 0.01 | 16.73 ± 0.13 | 16.32 ± 0.20 | |||||||
S2 | RV | 11.79 | 11.79 | 11.7 | 11.85 | 11.73 | 11.48 | 10.97 | 10.6 | 10.38 |
X ± SD | 11.76 ± 0.04 | 11.69 ± 0.15 | 10.65 ± 0.24 | |||||||
S3 | RV | 5.76 | 5.75 | 5.71 | 5.47 | 5.27 | 5.14 | 3.81 | 4.1 | 4.03 |
X ± SD | 5.74 ± 0.02 | 5.29 ± 0.14 | 3.98 ± 0.12 | |||||||
S4 | RV | 25.71 | 25.54 | 25.3 | 25.38 | 25.3 | 25.27 | 25.4 | 25.23 | 25.07 |
X ± SD | 25.52 ± 0.17 | 25.32 ± 0.05 | 25.23 ± 0.13 | |||||||
S5 | RV | 11.44 | 11.43 | 11.41 | 11.51 | 11.47 | 11.42 | 11.35 | 11.19 | 11.08 |
X ± SD | 11.43 ± 0.01 | 11.47 ± 0.04 | 11.21 ± 0.11 | |||||||
S6 | RV | 10.36 | 10.34 | 10.32 | 10.39 | 10.29 | 10.20 | 10.02 | 9.75 | 9.55 |
X ± SD | 10.34 ± 0.02 | 10.29 ± 0.08 | 9.77 ± 0.19 |
Length (cm) | Resistance Before Heating (Ω) | Resistance After Heating (Ω) | Rate of Resistance Change (%) |
---|---|---|---|
4.5 | 290.45 | 241.83 | −16.7 |
3.5 | 225.97 | 179.39 | −20.6 |
3.2 | 210.45 | 154.86 | −26.4 |
Sample No. | Equation |
---|---|
S1 | R0 = 16.69 − 0.49U |
S2 | R = 11.06 − 0.60U |
S3 | R = 5.12 − 0.76U |
S4 | R = 25.20 − 0.76U |
S5 | R = 11.36 − 0.36U |
S6 | R = 10.02 − 0.52U |
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Sun, K.; Liu, S.; Long, H. Structural Parameters Affecting Electrothermal Properties of Woolen Knitted Fabrics Integrated with Silver-Coated Yarns. Polymers 2019, 11, 1709. https://doi.org/10.3390/polym11101709
Sun K, Liu S, Long H. Structural Parameters Affecting Electrothermal Properties of Woolen Knitted Fabrics Integrated with Silver-Coated Yarns. Polymers. 2019; 11(10):1709. https://doi.org/10.3390/polym11101709
Chicago/Turabian StyleSun, Kexia, Su Liu, and Hairu Long. 2019. "Structural Parameters Affecting Electrothermal Properties of Woolen Knitted Fabrics Integrated with Silver-Coated Yarns" Polymers 11, no. 10: 1709. https://doi.org/10.3390/polym11101709
APA StyleSun, K., Liu, S., & Long, H. (2019). Structural Parameters Affecting Electrothermal Properties of Woolen Knitted Fabrics Integrated with Silver-Coated Yarns. Polymers, 11(10), 1709. https://doi.org/10.3390/polym11101709