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Graphene/TiO2-based near-infrared/ultraviolet radiation resistant polymer composite film and preparation method thereof

A composite film, ultraviolet radiation technology, applied in coatings, epoxy resin coatings, etc., can solve the problems of low transparency, poor heat insulation effect, light pollution preparation cost, etc., and achieves low preparation cost, easy film coating, and favorable application. and promotion effect

Inactive Publication Date: 2011-05-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of poor heat insulation effect, low transparency, serious light pollution and high preparation cost of existing heat reflective materials and provide graphene / TiO 2 Basic near-infrared / ultraviolet radiation resistant polymer composite film and preparation method thereof

Method used

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  • Graphene/TiO2-based near-infrared/ultraviolet radiation resistant polymer composite film and preparation method thereof
  • Graphene/TiO2-based near-infrared/ultraviolet radiation resistant polymer composite film and preparation method thereof
  • Graphene/TiO2-based near-infrared/ultraviolet radiation resistant polymer composite film and preparation method thereof

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specific Embodiment approach 1

[0012] Specific implementation mode one: the present implementation mode graphene / TiO 2 The near-infrared / ultraviolet radiation-resistant polymer composite film is made by adding a mixture of graphene oxide dispersion and nano-titanium dioxide dispersion to the epoxy acrylate curing system at a volume ratio of 1 to 10:50; Wherein the mass concentration of the graphene oxide dispersion is 2% to 20%, the mass concentration of the nano titanium dioxide dispersion is 2% to 20%, and the graphene oxide dispersion and the nano titanium dioxide dispersion are mixed according to a volume ratio of 1 to 2:1 , the curing system of epoxy acrylate is mixed and stirred according to the following mass percentages: 48% to 69% of epoxy acrylate, 29% to 48% of ethoxylated trihydroxypropane triacrylate, 1-hydroxycyclohexylphenylmethanol Ketones 2% to 4%.

[0013] In this embodiment, graphene is preferred as a material with excellent photoelectric characteristics. It is also the thinnest two-dime...

specific Embodiment approach 2

[0014] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the polymer composite film is added to the ring according to the volume ratio of 1:10 by the mixed liquid composed of graphene oxide dispersion liquid and nano-titanium dioxide dispersion liquid. Made in an oxyacrylate curing system. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0015] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the mass concentration of graphene oxide dispersion liquid is 10%, the mass concentration of nano titanium dioxide dispersion liquid is 10%; Graphene oxide dispersion liquid and nano titanium dioxide dispersion liquid The dispersion liquid is mixed according to the volume ratio of 1:1. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a graphene / TiO2-based near-infrared / ultraviolet radiation resistant polymer composite film and a preparation method thereof, relating to a near-infrared / ultraviolet radiation resistant composite film and a preparation method thereof. The invention aims to solve the problems of the existing heat reflecting material such as poor heat insulation effect, low transparency, serious light pollution and high production cost and the like. The composite film is prepared by adding the mixed liquid of graphene oxide dispersion and nano-TiO2 dispersion in the curing system of epoxy acrylate at a volume ratio of 1-10:50. The preparation method comprises the following steps: 1) preparing graphene oxide; 2) preparing TiO2 nanoparticles; 3) preparing nanometer graphene / TiO2 composite; and 4) preparing the graphene / TiO2-based near-infrared / ultraviolet radiation resistant polymer composite film. The composite film is mainly used for the glass coating of a building or means of transport for running an air-conditioning system.

Description

technical field [0001] The invention relates to a composite film resistant to near-infrared / ultraviolet radiation and a preparation method thereof. Background technique [0002] With the increasing depletion of non-renewable resources in the world, the issue of energy saving has become the focus of human attention. Since ordinary glass is not selective to sunlight, especially the near-infrared part (780-2500nm) with the most significant thermal effect in sunlight, heat The heat generated by radiation is transmitted to the interior of buildings and vehicles through glass, resulting in energy loss and increased energy consumption of buildings, etc., and the air-conditioning load is significantly increased in hot summer. Conventional methods to solve the sunscreen and heat insulation of glass mainly adopt methods such as attaching sunscreen and heat insulation film, using metal-coated heat-reflecting glass, etc., which can block part of the sunlight from passing through to achi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/08C08K9/02C08K3/04C08K9/06C08K3/22C08J5/18C08J3/28C09D163/10C09D7/12C09D5/00C03C17/32C03C17/22C03C17/23
Inventor 胡桢黄玉东徐慧芳姜再兴孙少凡姚宇环
Owner HARBIN INST OF TECH
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