适应性个人温度调节的全天候3D自折叠面料
Xiaohui Zhang1,2,3, Yuheng Gu1,2,3, Xujiang Chao4
1Future Intelligent Wear Centre, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, 999077, Hong Kong, People's Republic of China.
Nano-micro letters
|June 11, 2025
概括
这项研究介绍了一种用于个人热调节的新型自折叠针织布. 它提供可适应的加热和冷却模式,在不断变化的环境中提高舒适性和效率.
科学领域:
- 材料科学 材料科学 材料科学
- 织工程 织工程 织工程
- 可穿戴技术可穿戴技术
背景情况:
- 个人温度调节对于舒适,健康和效率至关重要,特别是全球气候变化.
- 现有的热面料通常具有静态特性,限制其适应动态环境条件的适应性.
- 越来越需要先进的织品,可以积极管理热舒适度.
研究的目的:
- 开发一种具有双重热调节能力的创新三维 (3D) 自折针织布.
- 为了研究面料在升温和降温模式中的性能.
- 评估面料的耐用性,舒适性和个人热管理中的潜在应用.
主要方法:
- 使用可扩展的针织技术制造3D自折叠针织织品.
- 在加热模式下的热性质的表征 (捕获空气以获得高热阻).
- 使用二氧化 (TiO2) 和聚二甲基 (PDMS) 涂料提高太阳反射和红外辐射的冷却模式性能的评估.
主要成果:
- 织物在3D状态下实现了高热阻力 (0.06 m2 K W-1),用于加热.
- 在二维状态下,涂层提供高太阳反射率 (89.5%) 和红外辐射率 (93.5%),在阳光下产生4.3°C的冷却效应.
- 这种织物表现出极好的耐用性 (>1000个折叠周期),可洗性,透气性和灵活性.
结论:
- 开发的3D自折布为适应性个人热管理提供了创新的解决方案.
- 这种织品解决了静态热面料的局限性,提供双模式调节,以提高舒适性和效率.
- 潜在的应用包括可穿戴技术,极端环境装备和可持续时尚.
相关概念视频
01:26Thermoregulation
1.2K
The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
1.2K
01:43Thermosensation
31.7K
Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
31.7K
01:21Masonry in Cold and Hot Weather Conditions
129
In cold weather, masonry construction requires specific precautions to ensure mortar does not freeze before curing, as this can significantly weaken its strength and watertightness. Mortar temperature should be maintained between 60°F and 80°F to support proper hydration and curing. Below 40°F, mortar water must be heated, but should not exceed 120°F as high temperatures can reduce mortar's compressive and bond strength.
Other key practices include keeping masonry units...
Other key practices include keeping masonry units...
129
01:29Decreased Body Temperature
677
A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...
677
01:09Thermal Stress
2.5K
If the temperature of an object is changed while it is prevented from expanding or contracting, the object is subjected to stress. The stress is compressive if the object expands in the absence of constraint and tensile if it contracts. This stress resulting from temperature change is known as thermal stress. It can be quite large and can cause damage. To avoid this stress, engineers may design components so they can expand and contract freely. For instance, on highways, gaps are deliberately...
2.5K
01:13Equipments Used to Measure Body Temperature
1.2K
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
1.2K