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Transparent heat-insulating film and its preparing process

A technology of heat insulation film and transparent film, which is applied in the field of transparent heat insulation film containing nanoparticles and its preparation, can solve the problems of complicated preparation method and inability to directly use film materials, and achieves simple preparation method, good light transmittance and cost. low cost effect

Active Publication Date: 2007-04-25
NANJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The heat-insulating glass film layers used in the above patents all use sputtering or deposition methods to realize the functional film layer on the glass surface, and the preparation method is relatively complicated.
However, the preparation described in patent CN200410014672.4 is a coating, which cannot be directly used as a membrane material

Method used

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  • Transparent heat-insulating film and its preparing process

Examples

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Comparison scheme
Effect test

example 1

[0027] Example 1: PVC-based transparent thermal insulation film, composed of a transparent substrate and a coating film, the thickness of the coating film is 10 μm. The composition and structure of the heat insulation film are shown in Table 1:

[0028] Table 1 Composition of transparent thermal barrier coating

[0029] Component

[0030] Nano powder

[0031] Stretch and flatten the PVC film through the fixture frame, apply the transparent heat-insulating paint on the PVC substrate by brushing, and dry it at 60°C for two hours to form a film, forming a PVC-based transparent heat-insulating film. This heat-insulating film has Good heat insulation performance and visible light transmittance, after relevant tests and calculations, its light transmittance reaches 80%, and its red shielding rate reaches 63%.

example 2

[0032] Example 2: PVB-based transparent heat-insulating film, composed of a PVB substrate and a layer of coating film, the thickness of the coating film is 15 μm. The composition and composition of the coating are shown in Table 2.

[0033] Table 2 Composition of transparent thermal barrier coating

[0034] Component

[0035] Apply the transparent thermal insulation coating on the PVB substrate by spraying, and dry it at 80°C for 2 hours to form a film. This thermal insulation film has good thermal insulation performance and visible light transmittance. After relevant tests and calculations, its visible light The light transmittance in the region can reach 78%, the shielding rate of light in the near-infrared region can reach 80%, and the shielding rate of ultraviolet light can reach 98%, with excellent comprehensive performance.

example 3

[0036] Example 3: PC-based transparent heat-insulating film, consisting of a PC substrate and a layer of coating film, the thickness of the coating film is 40 μm. The composition and composition of the coating are shown in Table 3.

[0037] Table 3 Composition of transparent thermal barrier coating

[0038] Component

[0039] Stretch and flatten the PC film, apply the transparent thermal insulation coating on the PC substrate by brushing, and dry it at 100°C for 1 hour to form a film. This thermal insulation film has good thermal insulation performance and visible light transmittance , after relevant tests and calculations, its light transmittance in the visible light region can reach 75%, and the shielding rate of light in the near-infrared region can reach 60%, with excellent comprehensive performance.

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Abstract

The invention discloses a transparent thermal insulation film, which is composed of transparent base and nanometer transparent insulating coating, wherein the paint is sprayed on the surface of transparent film base, which is dried to obtain transparent product. The invention is fit for automobile window and architectural window.

Description

technical field [0001] The present invention relates to a transparent heat-insulating film and a preparation method thereof, in particular to a transparent heat-insulating film containing nanoparticles and a preparation method thereof. It can be widely used in automobile windows, building windows, glass curtain walls and other occasions. Background technique [0002] In the prior art, heat insulation of glass is usually solved by heat insulation film or heat insulation sticker, and heat insulation film has excellent comprehensive performance, so it has been widely used. [0003] According to the data, Chinese patent CN93110358.4 (preparation method and special nozzle for glass transparent heat-insulating film) adopts atmospheric pressure chemical vapor deposition process to form transparent heat-insulating film on the glass surface. [0004] Chinese patent CN200310111067.4 (F, Mn co-doped deposition nano SnO 2 Transparent heat-insulating film) invented a transparent heat-i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08J7/04C08L27/06C08L69/00C08L23/06C08L23/12C08L67/00
Inventor 赵石林许仲梓张永进缪国元姚晨卢小松
Owner NANJING UNIV OF TECH
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