Passive radiation refrigeration composite material layer and preparation method thereof

A technology of composite material layer and radiative refrigeration, which is applied in the field of solar radiation-blocking coatings, solar radiation-blocking composite materials and their preparation, can solve the problems of increasing preparation and application costs, unfavorable application of passive radiative refrigeration materials, etc., and achieves The preparation method is simple, easy to realize, and the effect of optimizing comfort

Inactive Publication Date: 2020-07-10
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these structures are composed of multilayer structures, which increases the cost of preparation and application, and is not conducive to the simple and efficient application of passive radiative cooling materials.

Method used

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  • Passive radiation refrigeration composite material layer and preparation method thereof
  • Passive radiation refrigeration composite material layer and preparation method thereof
  • Passive radiation refrigeration composite material layer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] In this embodiment, a passive radiative cooling composite material layer, when the acetate fiber fabric with a size of 50 cm × 50 cm purchased from Mitsubishi Corporation of Japan is used as the base, the passive radiative cooling composite material layer is coated and arranged on the base , forming a composite layer structure of a substrate and a passive radiative cooling layer, the passive radiative cooling layer reflects visible light and near-infrared light in sunlight, and dissipates heat through an atmospheric window in the form of infrared radiation. The material components of the passive radiative cooling composite layer include functional inorganic nanoparticles α-Al that can reflect and scatter sunlight 2 o 3 1. A functional polymer acetate fiber with a radiation-enhancing effect, wherein the functional inorganic nanoparticles are evenly distributed in the functional polymer.

[0049] A preparation method of the passive radiative cooling composite material la...

Embodiment 2

[0062] This embodiment is basically the same as Embodiment 1, and the special features are:

[0063]In this embodiment, a passive radiation cooling composite material layer, when an organza fabric with a size of 50cm×50cm is used as the base, the passive radiation cooling composite material layer is coated on the base to form the base and the passive base. The passive radiation cooling layer reflects visible light and near-infrared light in sunlight, and dissipates heat through the atmospheric window in the form of infrared radiation. The material components of the passive radiative cooling composite layer include functional inorganic nanoparticles α-Al that can reflect and scatter sunlight 2 o 3 1. A functional polymer acetate fiber with a radiation-enhancing effect, wherein the functional inorganic nanoparticles are evenly distributed in the functional polymer.

[0064] A preparation method of the passive radiative cooling composite material layer of this embodiment, compr...

Embodiment 3

[0085] This embodiment is basically the same as the previous embodiment, and the special features are:

[0086] In this embodiment, a passive radiation refrigeration composite material layer, when an aluminum plate with a size of 15cm×7.5cm×0.05cm is used as the substrate, the passive radiation refrigeration composite material layer is coated on the substrate to form the substrate and The composite layer structure of the passive radiative cooling layer, the passive radiative cooling layer reflects visible light and near-infrared light in sunlight, and dissipates heat through the atmospheric window in the form of infrared radiation. The material components of the passive radiative cooling composite layer include functional inorganic nanoparticles α-Al that can reflect and scatter sunlight 2 o 3 , functional polymer acetate fiber for radiation enhancement and epoxy resin that can improve coating adhesion, the functional inorganic nanoparticles are uniformly distributed in the f...

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Abstract

The invention discloses a passive radiation refrigeration composite material layer which coats a substrate to form a composite layer structure of the substrate and a passive radiation refrigeration layer, and the passive radiation refrigeration layer reflects visible light and near-infrared light in sunlight and dissipates heat through an atmospheric window in an infrared radiation form. The invention discloses a preparation method of the passive radiation refrigeration composite material layer, and the method comprises the following steps: dissolving resin in a volatile solvent, dispersing nanoparticles in the volatile solvent, and mixing at normal temperature to form a suspension; dissolving a functional polymer in the suspension, and uniformly mixing to form a coating solution; and coating the substrate with the coating solution to volatilize the solvent so as to form the passive radiation refrigeration layer on the surface of the substrate. The material disclosed by the invention has a simple single-layer structure, can simply coat the surfaces of various substrates like a coating, can reduce the incompatibility among multi-layer structures and reduce the cost, and is simple and convenient in preparation method, easy to operate and low in cost.

Description

technical field [0001] The present invention relates to a solar radiation blocking material and a preparation method thereof, in particular to a solar radiation blocking composite material and a preparation method thereof, and also to a solar radiation blocking coating which is applied to radiation refrigeration materials and a preparation process technology field. Background technique [0002] According to statistics, the energy consumption of air conditioners accounts for 48% of the total energy consumption of buildings in my country. Therefore, a space temperature regulation method that is cheap, environmentally friendly, and requires no power consumption will become a new technology that can replace traditional air conditioners. Among them, the passive radiative cooling technology can transmit the heat of the building surface through the atmospheric window at a wavelength of 8-14 μm and emit it into outer space in the form of long-wave infrared heat radiation without th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D101/12C09D163/00C09D5/33B05D7/26F25B23/00
CPCB05D7/26B05D2301/00B05D2401/10B05D2401/21B05D2502/00B05D2503/00B05D2504/00B05D2506/10B05D2508/00B05D2518/00C08K2003/2227C08K2201/011C09D5/004C09D101/12F25B23/003C08K3/22C08L63/00Y02P20/10
Inventor 高彦峰李秋陈长危韦
Owner SHANGHAI UNIV
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