Facile flexible reversible thermochromic membranes based on micro/nanoencapsulated phase change materials for wearable temperature sensor

He, Yayue; Li, Wei; Han, Na; Wang, Jianping

doi:10.1016/j.apenergy.2019.04.077

Cited by 120 publications

(74 citation statements)

References 50 publications

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Section: Resultsmentioning

confidence: 99%

“…However, as shown in Fig. 12 d, He et al optimized the accuracy of the mapping temperature of thermochromic materials, which can reflect the specific value of the temperature more accurately [ 198 ]. In future research, the development of thermochromic materials sensitive to temperature and can accurately respond to temperature will also gradually becoming one research focus.…”

Section: Resultsmentioning

confidence: 99%

“…c Optical images of an e-TLC device on the wrist during an occlusion test (scale bar, 3 cm) [15]. d Facile flexible reversible thermochromic membranes based on micro/nanoencapsulated phase change materials for wearable temperature sensor [198] the sensor structure parameters can be adjusted, showing customizable functions, and achieving the purpose of overall structural fabricating. In the future, 3D printing is the best candidate for the development of unique functional structures [199].…”

Section: Applicationsmentioning

confidence: 99%

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Printable, Highly Sensitive Flexible Temperature Sensors for Human Body Temperature Monitoring: A Review

Chen

et al. 2020

Nanoscale Res Lett

168

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In recent years, the development and research of flexible sensors have gradually deepened, and the performance of wearable, flexible devices for monitoring body temperature has also improved. For the human body, body temperature changes reflect much information about human health, and abnormal body temperature changes usually indicate poor health. Although body temperature is independent of the environment, the body surface temperature is easily affected by the surrounding environment, bringing challenges to body temperature monitoring equipment. To achieve real-time and sensitive detection of various parts temperature of the human body, researchers have developed many different types of high-sensitivity flexible temperature sensors, perfecting the function of electronic skin, and also proposed many practical applications. This article reviews the current research status of highly sensitive patterned flexible temperature sensors used to monitor body temperature changes. First, commonly used substrates and active materials for flexible temperature sensors have been summarized. Second, patterned fabricating methods and processes of flexible temperature sensors are introduced. Then, flexible temperature sensing performance are comprehensively discussed, including temperature measurement range, sensitivity, response time, temperature resolution. Finally, the application of flexible temperature sensors based on highly delicate patterning are demonstrated, and the future challenges of flexible temperature sensors have prospected.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Applicationsmentioning

confidence: 99%

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Printable, Highly Sensitive Flexible Temperature Sensors for Human Body Temperature Monitoring: A Review

Chen

et al. 2020

Nanoscale Res Lett

168

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“…When the temperature is lower than this value, the original color is restored [4]. The thermochromic coating can not only be used for surface temperature measurement [5], 3D printing [6], overtemperature warning [7], and anti-counterfeiting identification [8], but also for decoration [9]. At present, most of the thermochromic coatings are prepared by adding thermochromic materials into the coatings [10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Coating Process on Performance of Reversible Thermochromic Waterborne Coatings for Chinese Fir

2020

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The effect of the coating process on the properties of reversible thermochromic waterborne coating on the surface of Chinese fir was examined. The results demonstrated that the most critical process parameter affecting the color difference and gloss of the coating was the way of adding thermochromic ink. The coating process had little influence on the adhesion, impact resistance adding, liquid resistance, and original properties of the coating. There was no obvious gloss variation in the coating under different coating processes. For the (3+3) layered coatings, when the thermochromic ink was added to the topcoats, the discoloration performance was the most obvious and the comprehensive performance of coating was better. Meanwhile, the gloss was 55.6%, the adhesion grade was grade 0, the impact resistance was 5.0 kg·cm, the liquid resistance grade of the coating to sodium chloride, ethanol and detergent was grade 1, and the liquid resistance grade to red ink was grade 3. The discoloration performance of the coating was stable under the conditions of aging and time change. This study provides new insight into preparing thermochromic intelligent waterborne wood coatings with potential practical applications on Chinese fir wood surfaces, and also lays a foundation for its application in furniture engineering.Coatings 2020, 10, 223 2 of 15 consumption. Wang et al. [14] prepared a poly-3,4-ethylene dioxythiophene coating, which provided a new idea for the preparation of a highly conductive coating with an obvious thermochromic effect on the textile pattern. Pan et al. [15] prepared the thermochromic vanadium dioxide films co-sputtered by vanadium and stainless-steel. It has good durability in high-temperature environments, whether humid or dry. The thermochromic coatings in these studies are chiefly used in the fields of windows, buildings, fabrics, infrared sensors, etc., while research on the thermochromic waterborne coatings applied to the surface of furniture and wood is relatively rare.Organic reversible thermochromic materials are mainly composed of chromogenic agents and solvent, which have significant characteristics in the temperature of color change, color combination, and color contrast before and after color change [16]. Therefore, compared with inorganic and liquid crystal thermochromic materials, organic thermochromic materials are more popular because of their sensitive color change, rich color, good durability, long shelf life, and low cost. Organic reversible thermochromic ink has the advantages of convenient detection. They are fast, accurate, have no need for additional auxiliary equipment, and have a broad application prospect in thermochromic coatings [17]. Chinese fir is highly applied to construction, in bridges, house furnishings, woodwork, and other domains [18], on account of its light weight, good machinability, resistance to deforming, insect-resistance, anti-corrosion, and other excellent properties [19]. Waterborne wood coatings are free of volatile organic compounds (VOCs) [20] and air co...

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“…1 Organic thermochromic systems are widely used as a carrier in various applications such as smart packaging and textiles, security printing, energy storage applications, memory storage devices, smart windows, sensors, and so forth. [2][3][4][5][6] Thermochromism is the phenomenon of a color change as a result of the phase transition caused by the temperature variation. 7 With thermochromic pigments (TPs), the whole new era is opening in the field of textile materials due to development of innovative fabrics and coloration systems.…”

Section: Introductionmentioning

confidence: 99%

Insight into color change of reversible thermochromic systems and their incorporation into textile coating

Štaffová

Kučera

Tocháček

et al. 2020

J of Applied Polymer Sci

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Dynamic color and phase change of chosen thermochromic systems were deeply investigated and their incorporation into polyurethane textile coating was developed. The colorimetric properties of three commercial reversible leuco dyes-based thermochromic pigments (TPs) with activation temperature at 38, 50, and 60 C were studied. Color change as a function of temperature was evaluated and colorimetric values were related to phase transition temperatures via differential scanning calorimetry (DSC) measurement. Light fastness of commercial TPs in polyurethane coating was determined by accelerated aging measurement and the color stability has been improved by using ultraviolet absorber (UVA). This research opens new possibilities for smart textiles, which is a very promising field in high-technology materials.

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Facile flexible reversible thermochromic membranes based on micro/nanoencapsulated phase change materials for wearable temperature sensor

Cited by 120 publications

References 50 publications

Printable, Highly Sensitive Flexible Temperature Sensors for Human Body Temperature Monitoring: A Review

Printable, Highly Sensitive Flexible Temperature Sensors for Human Body Temperature Monitoring: A Review

Effect of Coating Process on Performance of Reversible Thermochromic Waterborne Coatings for Chinese Fir

Insight into color change of reversible thermochromic systems and their incorporation into textile coating

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