Composite radiation refrigeration film

A composite radiation and solar radiation technology, applied in refrigerators, refrigeration and liquefaction, synthetic resin layered products, etc., can solve the problem that the cooling effect needs to be further improved, and achieve the effect of improving the cooling effect and increasing the emissivity.

Active Publication Date: 2019-09-10
NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the refrigerating effect of the radiant refrigeration system of the above-mentioned patent needs to be further improved.

Method used

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  • Composite radiation refrigeration film
  • Composite radiation refrigeration film
  • Composite radiation refrigeration film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] A composite radiant refrigeration film, comprising a second emitting layer, a first emitting layer, and a metal reflective layer sequentially arranged from top to bottom, wherein:

[0070] The thickness of the second emission layer is 20μm. The second emission layer includes PET polymer and hollow second cells dispersed in the PET polymer. The average diameter of the second cells is 20 nm. The volume fraction in the emission layer is 3%;

[0071] The thickness of the first emission layer is 5 μm. The first emission layer includes TPX polymer and hollow first cells. The average diameter of the first cells is 5 μm. The volume fraction of the first cells in the first emission layer is 15%;

[0072] The thickness of the metal reflection layer is 200 nm, and the metal reflection layer is a silver layer plated on the first emission layer.

Embodiment 2

[0074] A composite radiant refrigeration film, comprising a second emitting layer, a first emitting layer, and a metal reflective layer sequentially arranged from top to bottom, wherein:

[0075] The thickness of the second emission layer is 50μm, and the second emission layer includes PET polymer and SiO 2 Particles, SiO 2 The average particle size of the particles is 200 nm, SiO 2 The volume fraction of particles in the second emitting layer is 20%;

[0076] The thickness of the first emission layer is 100 μm, the first emission layer includes ABS polymer and ceramic beads, the average particle size of the ceramic beads is 10 μm, and the volume fraction of the ceramic beads in the first emission layer is 10%;

[0077] The thickness of the metal reflection layer is 150 nm, and the metal reflection layer is an aluminum layer plated on the first emission layer.

Embodiment 3

[0079] The difference between the composite radiant refrigeration film of Example 3 and Example 1 is that: the outer surface of the second emitting layer of Example 3 has a convex microstructure, and the convex microstructure is embossed by a roller with a microstructure on the surface. Formed, the size of the raised microstructure is on the order of microns.

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Abstract

The invention discloses a composite radiation refrigeration film. The composite radiation refrigeration film comprises a top layer and a reflection layer arranged under the top layer. The reflection layer has high reflectivity for at least a part of solar radiation. The top layer comprises one or more polymers, and the polymer has an emissivity of not less than 80% at a wave band of 7-14 microns.The top layer comprises a first emission layer close to the reflection layer and a second emission layer far away from the reflection layer. The first emission layer comprises a first polymer and a plurality of first foam holes formed in the first polymer, and the second emission layer comprises a second polymer and a plurality of second foam holes formed in the second polymer, wherein the diameter of the first foam holes is 1-20 microns, and the diameter of the second foam holes is 1-200 nm.

Description

Technical field [0001] The invention relates to the technical field of radiant refrigeration, in particular to a composite radiant refrigeration film. Background technique [0002] The radiant refrigeration technology, as a non-energy-consuming temperature adjustment method, has good practicability, can enable human beings to achieve harmonious development in environmental protection and energy utilization, and will bring major changes to the energy field. [0003] Any object with a temperature higher than absolute zero will produce electromagnetic radiation. With the different conditions such as the material, molecular structure and temperature of the radiating object, the radiation wavelength is also different. In the infrared radiation waveband, in terms of the nature of radiation, when atoms or atomic groups in a molecule change from a high-energy vibration state to a low-energy vibration state, infrared radiation in the 2.5μm ~ 25μm band is generated. From the analysis of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/24B32B3/30B32B15/04B32B15/08B32B27/08B32B27/20B32B27/30B32B27/32B32B27/36F25B23/00
CPCB32B15/04B32B15/08B32B15/082B32B15/09B32B3/266B32B27/20B32B3/30B32B27/08B32B5/22B32B5/18F25B23/00B32B27/36B32B27/365B32B27/32B32B27/304B32B27/302B32B2270/00B32B2266/06B32B2266/0228B32B2266/025B32B2266/0264B32B2266/0235B32B2266/0278B32B2307/416B32B2307/54B32B2264/0214B32B2264/0285B32B2264/0278B32B2264/0242B32B2264/0228B32B2264/0235B32B2264/0292F28F13/18F28F21/067B32B2307/30B32B3/26B32B27/18F28F13/185F28F2245/06F24S70/275B64G1/50F24S70/225Y02E10/40
Inventor 徐绍禹其他发明人请求不公开姓名
Owner NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD
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