Light reflector and preparation method thereof

A technology of light reflection and light stabilizer, which is applied in the direction of diffusing elements, mirrors, etc., can solve the problems that are not suitable for large-scale industrial production, affect the lighting intensity of lamps, reduce the effect of diffuse reflection, etc., and improve lighting comfort , Improve the self-cleaning function and improve the effect of reflectivity

Active Publication Date: 2013-08-07
BEIJING UNIV OF CHEM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The surface microstructure refers to a microlens array with linear or nonlinear geometric features, such as microgrooves, spheres, ellipsoids, polygons, paraboloids, hyperboloids, or combinations thereof; the composite structure diffuse reflection polymer prepared by this patent The material has a high reflectivity and a good diffuse reflection effect, but the polymer surface of the material has an electrostatic effect. After a long time of use, it is easy to absorb and accumulate dust on the surface of the material, thereby significantly reducing the diffuse reflection effect and seriously Affects the light intensity of the lamp
[0005] In addition, U.S. Patent US4104102 discloses the production of reflective film using the accumulation layer composite process, but the process conditions are tedious and complicated, the yield is low, and it is not suitable for large-scale industrial production

Method used

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  • Light reflector and preparation method thereof
  • Light reflector and preparation method thereof
  • Light reflector and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Such as Figure 1 to Figure 4 As shown, a light reflection plate of the present invention is composed of the first layer 11, the second layer 12 and the third layer 13 sequentially from the outside to the inside, wherein the first layer 11 and the third layer 13 are both composed of The second layer 12 is composed of a material layer of A, and the second layer 12 is composed of a material layer of B, and several hemispherical microstructures are distributed on the surface of the first layer 11 .

[0058] In the foregoing embodiment, the A material layer and the B material layer are composed of the raw material components shown in Table 1;

[0059] The diameter of the hemispherical microstructure shown is 15 μm, and the distance between the centers of two adjacent hemispheres is 300 μm, which can also be designed according to actual needs. The preferred characteristic size range for enhancing the reflection effect is 0.1 μm to 1000 μm;

[0060] In the total thickness of...

Embodiment 2

[0082] Such as Figure 9 and Figure 10 As shown, a light reflection plate, its basic structure and performance testing method are the same as in Example 1, and its raw material components and performance testing results are shown in Table 1. The difference is that on the surface of the first layer 11 and the third layer 13 Several hemispherical microstructures are evenly distributed.

[0083] In the above embodiment, the diameter of the shown hemispherical microstructure is 0.1 μm, and the distance between the centers of two adjacent hemispheres is 5 μm; in the total thickness of the light reflection plate, the thickness of the inner layer, that is, the second layer 12, occupies The proportion is 65%, and the proportion of the thickness of the outer layer, that is, the first layer 11 and the third layer 13 is 35%, and the proportion of the thickness of the first layer 11 is 20%.

[0084] Such as Figure 5 to Figure 8 As shown, the specific preparation method of the above-m...

Embodiment 3

[0089] Such as Figure 1 to Figure 4 As shown, a light reflecting plate, its basic structure and performance testing method are the same as in Example 1, and its raw material components and performance testing results are shown in Table 1.

[0090] In the above embodiment, the diameter of the hemispherical microstructure shown is 1000 μm, and the distance between the centers of two adjacent hemispheres is 2500 μm; in the total thickness of the light reflection plate, the proportion of the thickness of the inner layer, that is, the second layer 12 is 90%, the proportion of the thickness of the outer layer, that is, the first layer 11 and the third layer 13 is 10%, and the proportion of the thickness of the first layer 11 is 6%.

[0091] Such as Figure 5 to Figure 8 As shown, the specific preparation method of the above-mentioned light reflection plate of the present invention and the preparation system used are the same as in Example 1, wherein:

[0092] In the step (1), the...

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Abstract

The invention relates to a light reflector and a preparation method thereof. An inner layer of the light reflector consists of a B material layer; an outer layer of the light reflector consists of an A material layer independently or consists of an A material layer and a C material layer, wherein the A material layer comprises the following components: a matrix resin, an antistatic agent, an antioxidant, a light stabilizer and a dispersant; the B material layer comprises the following components: a matrix resin, titanium dioxide, an antioxidant, a light stabilizer, a fluorescent brightener and a dispersant; the C material layer comprises the following components: a matrix resin, an antioxidant, a light stabilizer and a dispersant; and the light reflector is prepared by a co-extrusion method through a single screw extruder. The light reflector has the advantages of high reflectivity, high diffuse reflectivity and high antistatic property, and can effectively improve the lighting comfort of a lamp; moreover, the preparation method is highly optimized and integrated, easy to implement, high in controllability and low in economic cost, and is suitable for being promoted and applied in the fields of light-emitting diode (LED) lamps and other related lighting.

Description

technical field [0001] The invention relates to the technical field of preparation and application of a polymer material, in particular to a light reflection plate and a preparation method thereof. Background technique [0002] Lamps sold in the traditional market generally use metals such as aluminum, copper, nickel, chromium, and metal-plated materials on plastic surfaces as reflective materials. Chemical substances (such as aluminum oxide) coated with reflective ability are used as light source reflectors. However, with the improvement of energy saving and environmental protection requirements, it is becoming more and more common to use LEDs with better energy saving effects as point light sources. It is easy to form specular reflection, and glare, uneven illumination and other problems that greatly reduce the comfort of the lighting environment. In addition, metal or reflectors coated with chemical substances are also generally susceptible to deterioration or shedding d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/08G02B5/02C08L23/12C08L67/02C08L55/02C08L51/00C08L33/12C08L69/00C08K3/22
Inventor 刘颖敬鹏生郑秀婷吴大鸣许红赵中里计红艳王海军
Owner BEIJING UNIV OF CHEM TECH
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