CN2302262Y

CN2302262Y - Transparent heat insulation diaphragm

Info

Publication number: CN2302262Y
Application number: CN 97234784
Authority: CN
Inventors: 邵剑心; 康长生
Original assignee: SHANGHAI AUYI PHOTOELECTRONIC CO Ltd
Current assignee: SHANGHAI AUYI PHOTOELECTRONIC CO Ltd
Priority date: 1997-06-12
Filing date: 1997-06-12
Publication date: 1998-12-30
Anticipated expiration: 2007-06-12

Abstract

The utility model provides a transparent heat insulation diaphragm, which is composed of film layers sputtered on a substrate. The substrate is made of transparent and flexible materials, such as polyester films, etc. The substrate uses tin indium oxide \ Ag\ tin indium oxide film as a film layer of the structure and is completed by coating an adhesion agent layer. The utility model has the advantages of high transmittivity of the visible region (>80%), high reflectivity of the infrared region (>90%) and conductivity. The utility model is especially suitable for front windows of automobiles, a display freezer, windows of buildings, and various occasions of complex surfaces which need visible transparence and isolated heat radiation.

Description

A kind of transparent heat-insulated film

The utility model relates to optical field, is a kind ofly to see through visible light and the film of reflects infrared light.

Along with human civilization advance, energy-conservation and environment protection has become the important topic that people pay close attention to.Because simple glass for ultrared isolated not enough, makes the isolated thermal-radiating place of needs such as glass door of big area window, motor-vehicle glass window and refrigerator-freezer of Highrise buildings bring huge energy lost, even brings pollution to environment.For solving this class problem, people have invented all heat reflection films, all are in order to increase ultrared reflection, to isolate radiant heat, and then reach energy-conservation purpose.But the heat reflection film of most kinds of regrettably seeing in the market, the transparency of its visible region are not high, thereby have influenced daylighting and visibility, in some occasion (for example front screen of automobile), this defective or even fatal.Also have minority heat reflection film to adopt titanium oxide/silver/titanium oxide, perhaps the structure of bismuth oxide/gold/bismuth oxide has higher visible transparency, but the production cost of this class heat reflection film is higher, is difficult to be promoted the use of on a large scale.

The purpose of this utility model is to provide a kind of visible transparency height, and infrared isolation is good, and cheap transparent heat-insulated film.

The transparent heat-insulated film of the utility model is that sputtered layer is formed in substrate, and substrate is transparent flexible materials such as mylar, and order adopts the rete of tin indium oxide/silver/tin indium oxide film structure, and the coating adhesive layer is finished then.

The utility model description of drawings is as follows:

Fig. 1 is that the rete of the transparent heat-insulated film of the utility model is arranged synoptic diagram.

Fig. 2 for the transparent heat-insulated film of the utility model as seen to seeing through and reflectance curve figure that region of ultra-red records.Shown the visible region surpass 80% high permeability and infrared region surpasses 90% high-reflectivity.

Below in conjunction with accompanying drawing the utility model is elaborated.

See also accompanying drawing, substrate 1 is transparent flexible materialss such as mylar.It is one complete visible transparent and film reflective infrared and that have electroconductibility is that

rete

2,3 and 4 constitutes.Wherein rete 2 is the tin indium oxide material, and thickness is about 40 nanometers, and with the method preparation of reactive magnetron sputtering, used target is indium stannum alloy (indium is about about 9: 1 with the ratio of tin content).Have advantages such as production efficiency height, material cost are low with the rete of this kind method preparation.And rete 3 is an argent, and thickness is about 15 nanometers, and with the magnetically controlled sputter method preparation, the film quality that makes is very high.Rete 4 is basic identical with rete 2, also is the indium tin oxides film about thick about 40 nanometers.Rete 5 is a binder layer, uses the coating method gluing.

This kind film is bonded to the window of automotive window, all kinds of buildingss, and on the transparent doors such as various display refrigerator-freezers, the transparency is good, can completely cut off thermal-radiating penetrating such as the sun again effectively, has power saving function.

The thickness of each rete in the above-mentioned film structure is adjusted slightly, can also be obtained some special-effects.For example: the thickness of slight modification rete 3, the transmitance that can be used for regulating the visible region; And the thickness of change rete 2 and rete 4 then might make entire structure present some light colors, as blue or golden yellow, has certain decoration function.

The utlity model has following advantage:

(1) has visual field high permeability (＞80%), infrared region high reflectance (＞90%) Characteristics have significantly energy-conservation, insulation effect, are particularly suitable for car windscreen, display ice The application of the occasions such as cabinet and glass of building window.

(2) have production efficiency height, advantage that cost is low, be fit to scale operation and popularization.

(3), thereby can switch on and reach function such as antifog, defrost because the utility model film has electroconductibility.

(4) because substrate is a flexible materials, be applicable to various complex-curved occasions.

(5) can regulate visible transmitance and change appearance color according to demand.

Claims

1, a kind of transparent heat-insulated film, sputtered layer is formed in substrate, it is characterized in that:

(a) be substrate 1 with transparent flexible materials such as mylars;

(b) be right after substrate 1 order and adopt tin indium oxide/silver/tin indium oxide film structure; Rete 2 is the tin indium oxide material, about 40 nanometers of thickness; Rete 3 is an ag material, about 15 nanometers of thickness, and rete 4 is the tin indium oxide material, about 40 nanometers of thickness;

(c) be binder layer along the rete 5 that connects rete 4.