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A kind of light reflecting material and its preparation method and application

A technology of light reflective material and reflective layer, applied in the field of optical materials, can solve the problems of limited reflection effect of metal nanoparticles and poor heat insulation effect, so as to reduce the penetration of sunlight, strong specular reflection effect, and good heat insulation. energy saving effect

Active Publication Date: 2022-08-05
广州中达新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the influence of nano-ceramics, the reflective effect of metal nanoparticles is extremely limited, and the thermal insulation effect is not good

Method used

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  • A kind of light reflecting material and its preparation method and application
  • A kind of light reflecting material and its preparation method and application
  • A kind of light reflecting material and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0067] An intelligent dimming EVA film, comprising a lower layer, a middle layer and an upper layer stacked in sequence, wherein the lower layer is a thermochromic EVA film, the middle layer is an up-conversion nano-ceramic EVA film, and the upper layer is a nano-silver wire composite nano-ceramic EVA film. The preparation method of the intelligent dimming EVA film comprises the following steps:

[0068] S1: the lower layer thermochromic composition, namely the preparation of thermochromic EVA film functional preparatory material

[0069] Weigh 25g of citric acid chelated copper and put it in a 500mL beaker, add 10g of polyvinylpyrrolidone to it, then add 215g of 1,6-hexanediol diacrylate dropwise, stir evenly, and use an ultrasonic cell disintegrator to ultrasonically disperse it for 30min. The ultrasonic frequency was 2000 Hz to obtain a citric acid chelated copper dispersion. Then 125g PEG (molecular weight is 1250) was added dropwise to the citric acid chelated copper dis...

Embodiment 2

[0094] An intelligent dimming EVA film, comprising a lower layer, a middle layer and an upper layer stacked in sequence, wherein the lower layer is a thermochromic EVA film, the middle layer is an up-conversion nano-ceramic EVA film, and the upper layer is a nano-silver wire composite nano-ceramic EVA film. The preparation method of the intelligent dimming EVA film comprises the following steps:

[0095] S1: the lower layer thermochromic composition, namely the preparation of thermochromic EVA film functional preparatory material

[0096] First weigh 25g of citric acid chelated copper and put it in a 500ml beaker, add 10g of polyvinylpyrrolidone to it, then dropwise add 215g of dicyclopentadiene ethoxymethacrylate, stir evenly and then use an ultrasonic cell disintegrator to disperse by ultrasonic 30min, ultrasonic frequency is 2000Hz, obtain citric acid chelated copper dispersion. Then 125g PEG (molecular weight is 1250) was added dropwise to the citric acid chelated copper ...

Embodiment 3

[0118] An intelligent dimming EVA film comprises a lower layer, a middle layer and an upper layer stacked in sequence, wherein the lower layer is a thermochromic EVA film, the middle layer is an up-conversion nano-ceramic EVA film, and the upper layer is a nano-silver wire composite nano-ceramic EVA film. The preparation method of the intelligent dimming EVA film comprises the following steps:

[0119] S1: the lower layer thermochromic composition, namely the preparation of thermochromic EVA film functional preparatory material

[0120] Weigh 10g of citric acid chelated copper and put it in a 500ml beaker, add 5g of polyvinylpyrrolidone to it, then add 185g of triallyl isocyanurate (TAIC) dropwise, stir evenly and use an ultrasonic cell crusher to ultrasonicate. Disperse for 30min, and the ultrasonic frequency is 2000Hz to obtain a citric acid chelated copper dispersion. Then 100g PEG (molecular weight is 1250) was added dropwise to the citric acid chelated copper dispersion ...

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Abstract

The invention discloses a light reflection material, a preparation method and application thereof. The light reflection material contains nano silver wires and nano ceramics, and the nano silver wires coat the nano ceramics. The invention adopts nano silver wire instead of nano silver particles, the nano silver wire can avoid being wrapped and covered by nano ceramics, and effectively exert the reflection effect; and compared with the nano silver particles, the nano silver wire has stronger specular reflection effect, which can reduce the penetration of sunlight. Pass. At the same time, the nano-ceramics in the light-reflecting material can block sunlight, further reduce the penetration of sunlight, and have a good heat insulation effect.

Description

technical field [0001] The invention relates to the technical field of optical materials, in particular to a light reflecting material and a preparation method and application thereof. Background technique [0002] With the development of society, ecological problems are becoming more and more serious, and the importance of protecting the environment and saving energy has been paid more and more attention by more and more people. The energy consumption of door and window glass accounts for 50% of the energy consumption of the building, of which energy-saving glass can block the heat in the sunlight and reduce the energy consumption for stabilizing the indoor hot and cold environment. In order to improve energy efficiency, prevent the temperature inside the doors and windows of the building from rising, and reduce the electricity consumption of indoor air conditioners, it is necessary that the glass of doors and windows can effectively block the infrared rays that bring heat ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/10C08K9/06C08K3/22C08K7/06C08L23/08C08J5/18B32B27/30B32B27/18B32B17/06B32B33/00E04B2/88E04B1/76E06B9/24
CPCC08K9/10C08K9/06C08K3/22C08K7/06C08J5/18B32B27/306B32B27/18B32B33/00E04B2/88E04B1/76E06B9/24C08J2323/08C08K2201/011B32B2307/416B32B2307/304E04B2001/7691E06B2009/2417
Inventor 余力彭德松廖媛于定月吴二平郑梅
Owner 广州中达新材料科技有限公司
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