Transparent heat insulation film and preparation method thereof

A technology of heat insulation film and transparent film, which is applied in the direction of coating, polyester coating, polyurea/polyurethane coating, etc., which can solve the problems of heat insulation effect, stability of transparent heat insulation film, UV aging resistance and wear resistance Deficiency and other problems, to achieve the effect of improving the anti-ultraviolet ability, improving the anti-ultraviolet aging and abrasion resistance, and improving the anti-ultraviolet effect

Active Publication Date: 2014-12-24
JIANGHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nanomaterials are first made into stable and dispersed water-based or solvent-based slurries, and then applied to coatings to obtain multifunctional nano-coatings with heat-insulating properties, which are coated on the surface of transparent films to obtain transparent heat-insulating films, but such There are still some problems in practical application of heat insulation film: on the one hand, because its heat insulation principle is only based on the reflection of near-infrared rays, reaching a near-infrared shielding rate of 70%, the heat insulation effect needs to be improved; on the other hand, the current The disclosed transparent thermal insulation film is still lacking in stability, UV aging resistance, abrasion resistance, etc.

Method used

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  • Transparent heat insulation film and preparation method thereof
  • Transparent heat insulation film and preparation method thereof
  • Transparent heat insulation film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] This embodiment provides a method for preparing a transparent heat-insulating film, the steps are:

[0036] 1) Preparation of POSS-carbon nanotube-ATO hybrid materials

[0037] a. Add 4g of dry carbon nanotubes and 100ml of mixed acid of 98% sulfuric acid and 60% nitric acid in a volume ratio of 3:1 in a beaker, ultrasonic treatment for 24 hours, suction filtration, washing, and vacuum drying at 100°C to obtain acidified carbon Nanotube 3g;

[0038] b. Put 3 g of acidified carbon nanotubes and 30 g of thionyl chloride prepared in step a into a flask, ultrasonically treat for 30 minutes, heat to 120° C., reflux for 30 hours under stirring, remove excess thionyl chloride by distillation, and heat at 80° C. Under vacuum drying obtains 2.6g of acylated carbon nanotubes;

[0039] c. Add 2.6g of acylated carbon nanotubes obtained in step b, 3.0g of nano antimony-doped tin dioxide and 2-(3,4-epoxycyclohexyl) ethyltrimethoxysilane 25g in the flask , sealed with a ground plug...

Embodiment 2

[0045] This embodiment provides a method for preparing a transparent heat-insulating film, the steps are:

[0046] 1) Preparation of POSS-carbon nanotube-ATO hybrid materials

[0047] a. Add 4g of dry carbon nanotubes and 100ml of mixed acid of 98% sulfuric acid and 60% nitric acid in a volume ratio of 3:1 in a beaker, ultrasonic treatment for 24 hours, suction filtration, washing, and vacuum drying at 100°C to obtain acidified carbon Nanotube 3g;

[0048] b. Put 3 g of acidified carbon nanotubes and 30 g of thionyl chloride prepared in step a into a flask, ultrasonically treat for 30 minutes, heat to 120° C., reflux for 30 hours under stirring, remove excess thionyl chloride by distillation, and heat at 80° C. Under vacuum drying obtains 2.6g of acylated carbon nanotubes;

[0049] c. Add 2.6g of acylated carbon nanotubes obtained in step b, 3.0g of nano antimony-doped tin dioxide and 2-(3,4-epoxycyclohexyl) ethyltrimethoxysilane 25g in the flask , sealed with a ground plug...

Embodiment 3

[0055] This embodiment provides a method for preparing a transparent heat-insulating film, the steps are:

[0056] 1) Preparation of POSS-carbon nanotube-ATO hybrid materials

[0057] a. Add 4g of dry carbon nanotubes and 100ml of mixed acid of 98% sulfuric acid and 60% nitric acid in a volume ratio of 3:1 in a beaker, ultrasonic treatment for 24 hours, suction filtration, washing, and vacuum drying at 100°C to obtain acidified carbon Nanotube 3g;

[0058] b. Put 3 g of acidified carbon nanotubes and 30 g of thionyl chloride prepared in step a into a flask, ultrasonically treat for 30 minutes, heat to 120° C., reflux for 30 hours under stirring, remove excess thionyl chloride by distillation, and heat at 80° C. Under vacuum drying obtains 2.6g of acylated carbon nanotubes;

[0059] c. Add 2.6g of acylated carbon nanotubes obtained in step b, 3.0g of nano antimony-doped tin dioxide and 2-(3,4-epoxycyclohexyl) ethyltrimethoxysilane 25g in the flask , sealed with a ground plug...

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Abstract

The invention discloses a transparent heat insulation film which is characterized by comprising a transparent film substrate and a heat insulation coating; the heat insulation coating comprises the following components in mass percent: 20%-40% of polyurethane acrylate, 10%-20% of organosilicon modified polyester acrylate, 25%-50% of monomer, 5%-20% of POSS-carbon-nano-tube-ATO hybrid material, 4%-6% of photoinitiator, 0-10% of organic solvent, 2%-3% of ultraviolet absorber, and 0.3%-1.5% of additive; the sum of the mass percent of all the components is 100%, wherein through the use of the POSS-carbon-nano-tube-ATO hybrid material, not only is the heat insulation effect enhanced, but also the ultraviolet ageing resistance and the wear resisting property of the coating can be improved. The invention further provides a preparation method of the transparent heat insulation film; the prepared transparent heat insulation film is good in transparency, heat insulation effect and anti-ultraviolet effect, is simple in technology and low in cost.

Description

technical field [0001] The invention relates to the technical field of heat-insulating films, in particular to a transparent heat-insulating film and a preparation method thereof. Background technique [0002] Windows are channels for heat to enter and exit, and the heat radiation of sunlight passes through the window glass to heat the room; the thermal insulation performance of glass has made a significant contribution to the world's energy saving and consumption reduction. In order to save energy, various measures have been taken to solve the heat insulation problem of glass. Traditionally, there are three main ways to solve the problem of glass heat insulation. One is to use glass heat insulation film, but the price of imported heat insulation film is too high at 200-600 yuan per square meter. Currently, it is only used in high-end cars; the other is to use heat reflection The reflective film emits heat through the reflective film, but the poor light transmission of this...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D167/06C09D7/12C08J7/04
Inventor 朱超胡巍陈峰彭湘红
Owner JIANGHAN UNIVERSITY
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