CN105128473A - Reflecting luminous film - Google Patents

Abstract

The invention discloses a reflective luminous film, which comprises an explosion-proof film, a reflective layer, a light-emitting layer, a hardness treatment layer, a three-dimensional embossed layer and a base layer connected by an adhesive from top to bottom. The explosion-proof film includes a base and a The color-changing layer, the color-changing layer is composed of sulfide nano-layers and oxide nano-layers arranged alternately. The reflective material of the present invention utilizes the light-emitting performance of the light-emitting material to enhance the ability of people to identify signs in the case of insufficient light, so that they can see the target clearly and reduce potential safety hazards. of luminous intensity.

Description

A reflective film

technical field

The invention relates to the field of thin film materials, in particular to a reflective luminescent film.

Background technique

At this stage, there are two types of reflective materials and luminescent materials on the market. Among them, luminescent film is a soft plastic composite film that can store light and emit light; so luminescent film is also called light storage film. The surface of the luminescent film can absorb the energy of the irradiated light, and when the illuminance on the surface is lower than a certain value, it can emit visible light. Luminescent film is an important functional material, which plays a very important role in cathode ray tubes, electroluminescence and field emission display devices.

At present, the luminescent material in the luminescent film is mainly photo-induced energy storage long afterglow luminescent material, which has two main branches, namely zinc sulfide luminescent material and rare earth activated alkaline earth metal aluminate luminescent material. Rare earth-activated alkali metal aluminate luminescent materials are characterized by high initial brightness, long afterglow time, no radioactive hazards and resistance to environmental erosion, and are known as green energy-saving materials. This type of luminescent material can absorb and store the energy of sunlight and light, and then release energy to emit light in the dark. It does not need a power supply, does not have the problem of parts being damaged and cannot be used, does not require daily maintenance, and has high reliability. It has been widely used in emergency instructions and other instructions, signs, signs, etc. However, the rare earth-activated alkaline earth metal aluminate luminescent material has poor waterproof ability, and after deliquescence in water, the luminous intensity of the luminescent material decreases and the luminous life is shortened. However, the luminous intensity of zinc sulfide luminescent material is low, and it cannot be used in a very dark environment.

The reflective film made of reflective material is widely used. In order to enhance the recognizability of road traffic, vehicles, advertisements and other signs, the reflective material is pasted on the back of the sign. Generally, the reflective film has no other function except to reflect light along the incident direction of the light source. In the case of poor external light conditions, the function of the luminescent film is very limited, and it is not easy for poets to detect it. In traffic facilities, it will be reflected that the driver cannot clearly see the warning signs, leaving a safety hazard. Consider introducing luminescent materials into the luminescent film to enhance the luminous intensity of the reflective film in the case of insufficient light, enhance people's recognition ability, make them see the target clearly, and reduce potential safety hazards. However, simply mixing the luminescent material and the reflective material will cause the luminescence and reflection to interfere with each other, and the effect is unsatisfactory.

Contents of the invention

In order to solve the above problems, the present invention provides a reflective light-emitting film. The light-reflective material can enhance the ability of people to identify signs in the case of insufficient light by virtue of the light-emitting performance of the light-emitting material, so that people can see the target clearly and reduce potential safety hazards. The light-emitting material The luminous intensity of the reflective light-emitting film is enhanced by using the retroreflective principle of the reflective material.

In order to achieve the above object, the technical scheme that the present invention takes is:

A reflective light-emitting film, which includes an explosion-proof film, a reflective layer, a light-emitting layer, a hardness treatment layer, a three-dimensional embossed layer, and a base layer connected by an adhesive from top to bottom. The explosion-proof film includes a base and a color-changing layer arranged on the base. The layer is formed by staggered arrangement of sulfide nanolayers and oxide nanolayers, and the base layer is prepared from the following components by weight:

30-50 parts of polycarbonate; 5-15 parts of silicon-containing polycarbonate resin; 0.5-5 parts of chemical resistance modifier, 5-25 parts of heat-resistant agent; 3-6 parts of flame retardant synergist; 6-22 parts of flame retardant, 0.1-1 part of antioxidant, 0.1-1 part of lubricant, 1-10 parts of inorganic nanoparticles, 1-2 parts of vanillin and 1-2 parts of thymol;

The light-emitting layer is prepared from the following components by weight:

30-50 parts of alkaline earth magnesium oxide phosphor; 20-30 parts of alkyd base material; 10-15 parts of polyfluorene or polyfluorene derivative; 3-5 parts of rheology accelerator; 2-3 parts of anti-skinning agent; 3-5 parts of plasticizer; 1-5 parts of filler.

Wherein, the hardness treatment layer is a UV treatment layer.

Wherein, the substrate is a PET film.

Wherein, the thickness of the sulfide nano-layer is 11-503 nm; the thickness of the oxide nano-layer is 11-503 nm.

Wherein, the chemical resistance modifier is an acrylic additive containing a perfluoroalkyl group.

Wherein, the heat-resistant agent N-phenylmaleimide copolymer and α-methylstyrene copolymer are mixed at a mass ratio of 2:3.

Wherein, the flame retardant synergist is obtained by mixing zinc borate, antimony trioxide and antimony pentoxide in a mass ratio of 2:1:3.

Wherein, the brominated flame retardant is obtained by mixing tetrabromobisphenol A, decabromodiphenylethane and brominated epoxy in a mass ratio of 1:1:1.

Wherein, the antioxidant is a hindered phenolic compound, and the lubricant is one or a mixture of silicone oil, white mineral oil, fatty acid amide, stearate or ethylene bisstearamide.

Wherein, the inorganic nanoparticles are one of nano silicon dioxide and nano montmorillonite.

The present invention has the following beneficial effects:

By interlacing the sulfide layer and the oxide layer, using the inherent refractive index of the sulfide and oxide to the light, the incident light is repeatedly superimposed and refracted through the superposition of the sulfide layer and the oxide layer, and the multiplicity of light is achieved by using the refracted light. channel interference, thereby greatly reducing the radiation of infrared and ultraviolet rays, thereby greatly improving the heat insulation effect; at the same time, the sulfide and oxide are transparent in nature, which ensures the light transmittance of the film. Through the sulfide layer and oxide The superposition of the layers repeatedly superimposes and refracts the incident light, and uses the refracted light to carry out multi-channel interference of light, so that the original transparent PET original film has different color effects under the observation of different visual angles, and the base layer has good durability. Corrosion, antibacterial and flame retardant properties greatly extend the overall service life of the reflective luminous film. Through the setting of the three-dimensional embossed layer, different patterns can be pressed according to needs, so that the reflective luminous film has a certain decorative function.

Description of drawings

FIG. 1 is a schematic structural view of a light-reflective film according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of the structure of the explosion-proof membrane in the embodiment of the present invention.

Detailed ways

In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 1-2, the embodiment of the present invention provides a reflective light-emitting film, which includes an explosion-proof film 1 connected by an adhesive, a reflective layer 2, a light-emitting layer 3, a hardness treatment layer 4, and a three-dimensional embossing from top to bottom. Layer 5 and base layer 6, the explosion-proof membrane 1 includes a base 11 and a color-changing layer 12 arranged on the base 11, the color-changing layer 12 is formed by staggered arrangement of sulfide nano-layers 13 and oxide nano-layers 14, and the base layer 6 consists of the following weight Components prepared from:

30-50 parts of polycarbonate; 5-15 parts of silicon-containing polycarbonate resin; 0.5-5 parts of chemical resistance modifier, 5-25 parts of heat-resistant agent; 3-6 parts of flame retardant synergist; 6-22 parts of flame retardant, 0.1-1 part of antioxidant, 0.1-1 part of lubricant, 1-10 parts of inorganic nanoparticles, 1-2 parts of vanillin and 1-2 parts of thymol;

The luminescent layer 3 is prepared from the following components by weight:

30-50 parts of alkaline earth magnesium oxide phosphor; 20-30 parts of alkyd base material; 10-15 parts of polyfluorene or polyfluorene derivative; 3-5 parts of rheology accelerator; 2-3 parts of anti-skinning agent; 3-5 parts of plasticizer; 1-5 parts of filler.

In the following embodiments, the hardness treatment layer 1 used is a UV treatment layer; the substrate 11 is a PET film. The thickness of the sulfide nano-layer is 11-503nm; the thickness of the oxide nano-layer is 11-503nm; the chemical resistance modifier is an acrylic additive containing perfluoroalkyl; the heat-resistant agent N-phenyl maleic acid The copolymer of imide and the copolymer of α-methylstyrene are mixed in a mass ratio of 2:3; the flame retardant synergist is composed of zinc borate, antimony trioxide, and antimony pentoxide in a mass ratio of 2:1: 3 Mixed obtained; the brominated flame retardant is obtained by mixing tetrabromobisphenol A, decabromodiphenylethane, and brominated epoxy in a mass ratio of 1:1:1; the antioxidant is a hindered phenol compound, and the The lubricant is one or a mixture of silicone oil, white mineral oil, fatty acid amide, stearate or ethylene bisstearamide; the inorganic nanoparticles are one of nano-silica and nano-montmorillonite The sulfide nano-layer is zinc sulfide nano-layer, sodium sulfide nano-layer, calcium sulfide nano-layer, barium sulfide nano-layer, manganese sulfide nano-layer; the nano-oxide layer is silicon dioxide nano-layer, germanium dioxide nano-layer, Selenium nanolayer.

Example 1

A reflective light-emitting film, which includes an explosion-proof film 1, a reflective layer 2, a light-emitting layer 3, a hardness treatment layer 4, a three-dimensional embossed layer 5, and a base layer 6 connected by an adhesive from top to bottom. The explosion-proof film 1 includes a base 11 and a design The color-changing layer 12 on the substrate 11, the color-changing layer 12 is formed by staggered arrangement of sulfide nano-layers 13 and oxide nano-layers 14, and the base layer 6 is prepared from the following components by weight:

30 parts of polycarbonate; 5 parts of silicon-containing polycarbonate resin; 0.5 parts of chemical resistance modifier, 5 parts of heat resistance agent; 3 parts of flame retardant synergist; 6 parts of brominated flame retardant, 0.1 part of antioxidant 1 part, 0.1 part of lubricant, 1 part of inorganic nanoparticles, 1 part of vanillin and 1 part of thymol;

The luminescent layer 3 is prepared from the following components by weight:

30 parts of alkaline earth magnesium oxide phosphor; 20 parts of alkyd base material; 10 parts of polyfluorene or polyfluorene derivative; 3 parts of rheology accelerator; 2 parts of anti-skinning agent; 3 parts of plasticizer; 1 part of filler.

Example 2

A reflective light-emitting film, which includes an explosion-proof film 1, a reflective layer 2, a light-emitting layer 3, a hardness treatment layer 4, a three-dimensional embossed layer 5, and a base layer 6 connected by an adhesive from top to bottom. The explosion-proof film 1 includes a base 11 and a design The color-changing layer 12 on the substrate 11, the color-changing layer 12 is formed by staggered arrangement of sulfide nano-layers 13 and oxide nano-layers 14, and the base layer 6 is prepared from the following components by weight:

50 parts of polycarbonate; 15 parts of silicon-containing polycarbonate resin; 5 parts of chemical resistance modifier, 25 parts of heat resistance agent; 6 parts of flame retardant synergist; 22 parts of brominated flame retardant, 1 part of antioxidant 1 part, 1 part of lubricant, 10 parts of inorganic nanoparticles, 2 parts of vanillin and 2 parts of thymol;

The luminescent layer 3 is prepared from the following components by weight:

50 parts of alkaline earth magnesium oxide phosphor; 30 parts of alkyd base material; 15 parts of polyfluorene or polyfluorene derivative; 5 parts of rheology accelerator; 3 parts of anti-skinning agent; 5 parts of plasticizer; 5 parts of filler.

Example 3

A reflective light-emitting film, which includes an explosion-proof film 1, a reflective layer 2, a light-emitting layer 3, a hardness treatment layer 4, a three-dimensional embossed layer 5, and a base layer 6 connected by an adhesive from top to bottom. The explosion-proof film 1 includes a base 11 and a design The color-changing layer 12 on the substrate 11, the color-changing layer 12 is formed by staggered arrangement of sulfide nano-layers 13 and oxide nano-layers 14, and the base layer 6 is prepared from the following components by weight:

40 parts of polycarbonate; 10 parts of silicon-containing polycarbonate resin; 2.75 parts of chemical resistance modifier, 15 parts of heat resistance agent; 4.5 parts of flame retardant synergist; 14 parts of brominated flame retardant, 0.55 parts of antioxidant 0.55 parts of lubricant, 5.5 parts of inorganic nanoparticles, 1.5 parts of vanillin and 1.5 parts of thymol;

The luminescent layer 3 is prepared from the following components by weight:

40 parts of alkaline earth magnesium oxide phosphor; 25 parts of alkyd base material; 12.5 parts of polyfluorene or polyfluorene derivative; 4 parts of rheology accelerator; 2.5 parts of anti-skinning agent; 4 parts of plasticizer; 3 parts of filler.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be It is regarded as the protection scope of the present invention.

Claims (10)

1. A reflective luminous film, characterized in that it comprises an explosion-proof film (1), a reflective layer (2), a luminous layer (3), a hardness treatment layer (4), and a three-dimensional embossed film successively connected by an adhesive from top to bottom. layer (5) and base layer (6), the explosion-proof film (1) comprises a base (11) and a color-changing layer (12) located on the base (11), and the color-changing layer (12) is composed of a sulfide nano-layer (13) and an oxidized Object nano-layers (14) are staggered, and the base layer (6) is prepared from the following components by weight: 30-50 parts of polycarbonate; 5-15 parts of silicon-containing polycarbonate resin; 0.5-5 parts of chemical resistance modifier, 5-25 parts of heat-resistant agent; 3-6 parts of flame retardant synergist; 6-22 parts of flame retardant, 0.1-1 part of antioxidant, 0.1-1 part of lubricant, 1-10 parts of inorganic nanoparticles, 1-2 parts of vanillin and 1-2 parts of thymol; The light-emitting layer (3) is prepared from the following components by weight: 30-50 parts of alkaline earth magnesium oxide phosphor; 20-30 parts of alkyd base material; 10-15 parts of polyfluorene or polyfluorene derivative; 3-5 parts of rheology accelerator; 2-3 parts of anti-skinning agent; 3-5 parts of plasticizer; 1-5 parts of filler. 2. A reflective light-emitting film according to claim 1, characterized in that, the hardness treatment layer (1) is a UV treatment layer. 3. A reflective luminous film according to claim 1, characterized in that the substrate (11) is a PET film. 4. A kind of reflective light-emitting film according to claim 1, characterized in that, the thickness of the sulfide nano-layer (13) is 11-503 nm; the thickness of the oxide nano-layer (14) is 11-503 nm . 5 . The light-reflective film according to claim 1 , wherein the chemical resistance modifier is an acrylic additive containing a perfluoroalkyl group. 6. A kind of reflective light-emitting film according to claim 1, characterized in that, the copolymer of the heat-resistant agent N-phenylmaleimide and the copolymer of α-methylstyrene are in a mass ratio of 2 : 3 mixed. 7 . The reflective luminous film according to claim 1 , wherein the flame retardant synergist is obtained by mixing zinc borate, antimony trioxide and antimony pentoxide in a mass ratio of 2:1:3. 8. A kind of reflective light-emitting film according to claim 1, characterized in that, the brominated flame retardant is tetrabromobisphenol A, decabromodiphenylethane, brominated epoxy in a mass ratio of 1 : 1:1 mixed. 9. A kind of reflective luminous film according to claim 1, is characterized in that, described antioxidant is hindered phenolic compound, and described lubricant is silicone oil, white mineral oil, fatty acid amide, stearate or One or more mixtures of ethylene bis stearamide. 10. A light-reflective film according to claim 1, characterized in that the inorganic nanoparticles are one of nano-silicon dioxide and nano-montmorillonite.