用于三明治智能窗的性和热敏水凝,具有自适应太阳能调制和节能节能的智能窗
Huijie Guan1, Yinghan Lu1, Yijiang You1
1School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China.
ACS applied materials & interfaces
|September 24, 2024
概括
这项研究开发了一种用于节能窗户的智能水凝. 复合材料自我调节太阳能传导率,为智能窗户应用提供出色的光学调制和增强的性.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 节能 节能 节能 节能 节能
背景情况:
- 热色水凝对于智能窗户和节能至关重要.
- 粘度坚固的水凝增强了智能窗户对外部力量的抵抗力.
研究的目的:
- 为智能窗户开发一种坚固,耐热的复合水凝.
- 将聚烯胺-异烯胺纳米颗粒 (PNIPAM NPs) 和W-doped VO2整合到聚烯胺- (PAM-Agar) 双网络水凝中.
主要方法:
- 将PNIPAM NP和W-doped VO2纳入PAM-Agar双网络水凝中.
- 光学属性的表征,包括光透率和太阳能调制.
- 评估机械性能,如性和粘附性.
主要成果:
- 复合水凝表现出优异的光学调制 (光透率为86.81%,光调制为78.89%,太阳能调制为83.59%) 的低临界溶液温度 (LCST) 为32.6°C.
- 优越的性 (0.215 MJ/m3) 增强了抗冲击能力,强大的粘合力 (151 N/m剥离力) 确保了耐用性.
- 水凝提供了绝热,有助于节能应用.
结论:
- 开发的复合水凝显示了先进智能窗户的巨大潜力.
- 这种材料通过自我调节的太阳能传导率和增强的耐用性为节能建筑提供了有前途的解决方案.
更多相关视频
12:07Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning
Published on: April 16, 2018
13.4K
08:17An Additive Manufacturing Technique for the Facile and Rapid Fabrication of Hydrogel-based Micromachines with Magnetically Responsive Components
Published on: July 18, 2018
7.1K
相关概念视频
Thermosensation
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...
Regulation of Transpiration by Stomata
During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.
Adaptations that Reduce Water Loss
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
Responses to Heat and Cold Stress
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
P-N junction
A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
Thermal Insulation in Masonry Walls
In hot, dry climates, the thermal mass of masonry walls can be beneficial, absorbing heat during the day and releasing it at night, thereby stabilizing indoor temperatures. However, in most other climates, additional insulation is necessary to enhance thermal resistance.
External insulation can be applied using an Exterior Insulation and Finish System (EIFS), which involves affixing panels of plastic foam to the wall and covering them with a polymeric stucco reinforced with glass fiber mesh.
External insulation can be applied using an Exterior Insulation and Finish System (EIFS), which involves affixing panels of plastic foam to the wall and covering them with a polymeric stucco reinforced with glass fiber mesh.
