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Radiation cooling passive cooling fabric and preparation method thereof

A radiative cooling and fabric technology, used in textiles and papermaking, coating, fiber processing, etc., can solve the problem of difficult daytime radiative cooling and cooling of clothing, and achieve improved radiative cooling performance, strong sunlight reflectivity, and strong adhesion. Effect

Pending Publication Date: 2020-05-15
XI'AN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the existing daytime radiation cooling of clothes is difficult, and to provide a radiation cooling passive cooling fabric and its preparation method

Method used

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  • Radiation cooling passive cooling fabric and preparation method thereof

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Embodiment Construction

[0026] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a radiation cooling passive cooling fabric and a preparation method thereof, and belongs to the technical field of textile. The radiation cooling passive cooling fabric sequentially comprises an infrared high emission top layer, a sunlight low absorption fabric layer and a sunlight high reflection bottom layer from top to bottom; the infrared high emission top layer is 0.5-0.9 in emissivity on infrared light with the wavelength of 8-13[mu]m; the sunlight low absorption fabric layer is 0.3-0.9 in sunlight emissivity; the sunlight high reflection bottom layer is 0.5-0.9 in sunlight emissivity; and the sunlight low absorption fabric layer is woven by fibers, wherein the cross sections of the fibers are triangular. According to the fabric, through synergic matching of three layers, a high infrared emissivity and strong sunlight reflectivity effect is realized in daytime, and the radiation cooling performance of the material in daytime is improved.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a radiation cooling passive cooling fabric and a preparation method thereof. Background technique [0002] Radiation cooling technology is a safe and environmentally friendly passive cooling technology that does not require additional energy consumption during the cooling process. It is developed based on the black body radiation law proposed by Planck in 1900. Since the earth's atmosphere has a transparent window in the 8-13μm band, this allows objects on the earth to radiate their own heat in the form of thermal radiation through the transparent window back to space and use the universe as a cold end to achieve the purpose of cooling. In past studies, radiative cooling applied at night has been able to achieve a good cooling effect, such as TiO 2 It can be mixed with white paint and applied to aluminum panels to achieve better cooling at night. However, during th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N7/00D06N3/14D06N3/00D06M11/83D06M101/32
CPCD06N7/0094D06N3/0036D06N3/0034D06N3/0015D06N3/0063D06N3/14D06M11/83D06M2101/32D06N2209/0876D06N2211/10
Inventor 吴倩
Owner XI'AN POLYTECHNIC UNIVERSITY
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