Flexible nanocomposite electrothermal films based on carbon nanotubes and waterborne polyurethane with high reliability, stretchability and low-temperature performance for wind turbine blade deicing

Zheng, Bojun; Wang, Huatao; Wu, Xulei; Yang, Ketong; Yu, Yangtao; Cui, Hongxin; Gao, Feng; Qian, Kun; Yao, Hai; Li, Jing; Xu, Wanting; Gong, Xiaobo; Wang, Yingying; Zhang, Ziyang; Dong, Yuzhen

doi:10.1016/j.compositesa.2022.106979

Cited by 20 publications

(4 citation statements)

References 52 publications

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“…[ 29 ] Wang et al decorated aramid nonwoven fabric with MXene that takes around 40s to reach 75 °C. [ 30 ] In fact, the CNT/PDMS composite takes advantage of the aligned CNT instead of placing the conductive components randomly, therefore, it can present such an outstanding electrothermal performance. It is worth noting that, during the test, the composite heater exhibits anisotropy in electrothermal performance depending on how the CNT was placed (Figure 2b).…”

Section: Resultsmentioning

confidence: 99%

Superior Stable, Highly Efficient, and Anisotropic Electrothermal Composite Heater in Various Directions with Fast Response Based on Aligned Carbon Nanotube Sheets

et al. 2022

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Flexible electrothermal heaters have a great potential for applications of warm‐keeping and thermotherapy. However, those common electrothermal heaters are so sensitive to strain that they are hard to resistant to deformation while still keeping the stable and outstanding electrothermal performance. Here, a flexible and elastic composite heater with a stable electrothermal property under varied strain with large deformation is developed by mimicking the wrinkle feature of human skin in a carbon nanotube (CNT)/polydimethylsiloxane (PDMS) bilayered structure. The created wrinkle feature of CNT film from the resilience of PDMS makes the electrothermal heater a stable electrothermal performance within 30–40% strain in different directions. The aligned preference of CNTs in the CNT film gives the electrothermal heater an ability that shows different electrothermal performance depending on different angles between the direction of CNT alignment and the long axis of the sample. This composite electrothermal heater also presents a highly efficient electrothermal performance that can reach 200 °C within 30s upon 2 V.

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Section: Resultsmentioning

confidence: 99%

Superior Stable, Highly Efficient, and Anisotropic Electrothermal Composite Heater in Various Directions with Fast Response Based on Aligned Carbon Nanotube Sheets

et al. 2022

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“…Thermoset polymers have been widely used in aviation, aerospace, automotive and other structural materials because of their excellent physicochemical properties [11,12]. Recently, epoxy resin has become one of the most important materials in the field of wind Polymers 2024, 16, 235 2 of 13 turbine blades due to its structural stability, light weight, high strength, high modulus, low shrinkage and good dimensional stability [13][14][15]. In contrast, PU has the potential benefit of better fatigue resistance, lower viscosity, higher strength, higher modulus and lower shrinkage than epoxy resin, and these benefits have attracted attention in the wind turbine blades field [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, epoxy resin has become one of the most important materials in the field of wind Polymers 2024, 16, 235 2 of 13 turbine blades due to its structural stability, light weight, high strength, high modulus, low shrinkage and good dimensional stability [13][14][15]. In contrast, PU has the potential benefit of better fatigue resistance, lower viscosity, higher strength, higher modulus and lower shrinkage than epoxy resin, and these benefits have attracted attention in the wind turbine blades field [16][17][18]. Despite the potentials of PU, its poor processing characteristics have limited its development in recent years.…”

Section: Introductionmentioning

confidence: 99%

Efficient Regulation of the Cross-Linking Structure in Polyurethane: Achieving Outstanding Processing and Mechanical Properties for a Wind Turbine Blade

Jiang,

Li,

et al. 2024

Polymers

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Although epoxy resin has been extensively used in the field of wind turbine blades, polyurethane has attracted much attention in recent years, due to its potential value of better fatigue resistance, lower processing viscosity and higher strength than epoxy resin blades. Herein, we construct a dense cross-linking structure in polyurethane (PU) based on different amounts of hydroxypropyl methacrylate (HPMA) with low processing viscosity and excellent mechanical properties. By increasing the content of HPMA, the thermal stability of PU is enhanced, but the micro-morphology does not change significantly. When the content of HPMA is 50 g (in 200 g copolymer), the PU sample PH-50 exhibits a viscosity of 70 MPa·s and a gelation time of 120 min at 25 °C, which is sufficient to complete processes like pouring and filling. By post-curing the PH-50 at 80 °C for 2 h, the heat distortion temperature can reach 72 °C, indicating the increase of temperature resistance. The PU copolymers also have excellent mechanical and dynamic thermo-mechanical properties due to the cross-linking structure between PU chains and poly-HPMA chains. Additionally, the PU copolymer has excellent compatibility with various glass fiber fabrics (GFF), showing a good match in the vacuum infusion experiment and great properties in the mechanical test. By compounding PH-50 with GFF, the composite with high strength is easily prepared for a wind turbine blade in various positions. The tensile strengths of the composites are all over 1000 MPa in the 0° direction. Such composites are promising for the future development of wind turbine blades that meet the stringent requirements for outstanding processing and mechanical properties.

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“…Nanocomposite films can be used in flexible electronics by incorporating inorganic materials into an organic matrix with low cost, lightweight, and easy to fabricate. 12 PVA and CoFe 2 O 4 composite film have a wide range of technological applications, especially in portable electronic devices, memory devices, and optoelectronics. These composite films can be used also as humidity sensors, optical waveguide sensors, holographic gratings, and in polarizing sheets production.…”

mentioning

confidence: 99%

Structural, Optical, and Morphological Study of Manganese Substituted Cobalt Ferrite and Its Effect on the Magnetic and Dielectric Properties of PVA Composites

Saeed,

Hussain,

Ismail

2024

ECS J. Solid State Sci. Technol.

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Nanopowders of Mn-substituted CoFe2O4 were prepared in different proportions using the sol-gel auto-combustion method and were structurally and morphologically studied. In another step, composites based on polyvinyl alcohol (PVA) with Mn-substituted CoFe2O4 fillers were prepared, and the effect of the Mn-substituted CoFe2O4 on the optical, magnetic, and dielectric properties was studied. X-ray analysis revealed the formation of polycrystalline Mn-substituted CoFe2O4. The results showed a decrease in the lattice constant with Mn2+ substituted and incorporated into the crystal structure of CoFe2O4. The Fourier confirmed the spinel structure of the Mn-substituted CoFe2O4 transform infrared spectrum where absorption bands appeared at 569–561 and 446–407 cm-1, which are attributed to tetrahedral and octahedral groups. The magnetic properties were affected when Mn ions were substituted with CoFe2O4, as shown by the results of VSM. It was observed that the saturation magnetization, remnant magnetization, and coercivity decreased with increasing Mn content. The dielectric constant and loss tangent of PVA/MnxCo1−xFe2O4 were also studied. The difference in the diameters of the substituted and host ions causes the dielectric constant to increase following the substitution of Mn ions.

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Flexible nanocomposite electrothermal films based on carbon nanotubes and waterborne polyurethane with high reliability, stretchability and low-temperature performance for wind turbine blade deicing

Cited by 20 publications

References 52 publications

Superior Stable, Highly Efficient, and Anisotropic Electrothermal Composite Heater in Various Directions with Fast Response Based on Aligned Carbon Nanotube Sheets

Superior Stable, Highly Efficient, and Anisotropic Electrothermal Composite Heater in Various Directions with Fast Response Based on Aligned Carbon Nanotube Sheets

Efficient Regulation of the Cross-Linking Structure in Polyurethane: Achieving Outstanding Processing and Mechanical Properties for a Wind Turbine Blade

Structural, Optical, and Morphological Study of Manganese Substituted Cobalt Ferrite and Its Effect on the Magnetic and Dielectric Properties of PVA Composites

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