Antistatic material, self-cleaning light diffusion plate prepared therefrom, and preparation method of self-cleaning light diffusion plate

A light diffusion plate, antistatic technology, applied in the direction of optics, optical components, instruments, etc., can solve the problems of impact, light energy loss, light energy loss, etc.

Active Publication Date: 2013-08-14
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these lampshades have insufficient light softness and loss of light energy to varying degrees during use, especially after long-term use, a large amount of dust is accumulated due to electrostatic adsorption, which aggravates the above defects
[0003] At present, the lampshades used are generally made of polystyrene resin (PS), polymethyl methacrylate (PMMA), polycarbonate (PC) and other similar materials. PC, PMMA, and PS have high light transmittance. , although the loss of light energy can be effectively avoided, but the light cannot be effectively soft enough for human eyes. LED lights still have strong and dazzling defects, and the problem of light energy loss caused by electrostatic adsorption of dust accumulation after long-term use
[0004] For this reason, materials for processing and modifying PC, PMMA or PS have appeared one after another in recent years. The processing modification is mainly carried out by adding some inorganic additives, such as: silicon dioxide, barium sulfate , adding these inorganic nanoparticle additives, the light will undergo countless light refraction through the surface of these tiny particles to achieve light diffusion, that is, play the role of uniform light to make the light soft, but when applying such modified materials, due to Light cannot penetrate these inorganic nanoparticles, and the light penetration is greatly weakened, resulting in a large loss of light energy. At the same time, there is also the defect that electrostatic adsorption and accumulation of dust affect the light transmittance and loss of light energy.
[0005] In addition, in order to avoid the above defects, there is a technology of adding organic light diffusing agent to materials such as PC, PMMA or PS for processing and modification. Invention patent ZL201010218327.8 discloses a high-haze and hig...

Method used

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  • Antistatic material, self-cleaning light diffusion plate prepared therefrom, and preparation method of self-cleaning light diffusion plate
  • Antistatic material, self-cleaning light diffusion plate prepared therefrom, and preparation method of self-cleaning light diffusion plate
  • Antistatic material, self-cleaning light diffusion plate prepared therefrom, and preparation method of self-cleaning light diffusion plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The antistatic material of the present invention weighs each component according to the components and content ratio shown in Table 1, stirs and mixes them evenly in a reactor at a high speed, and then heats them at 230°C under continuous stirring until fully melted and mixed Uniform, then shape, cool and collect. The resistivity of the obtained antistatic material was tested according to the GB / T1410-2006 standard, and the specific results are shown in Table 1.

[0060] In the preparation of the above-mentioned antistatic material of the present invention, the heating and melting temperature can be set at 100° C. to 300° C., specifically, the standard is to achieve sufficient and uniform melting and mixing.

[0061] Such as Figure 1 to Figure 3 As shown, a self-cleaning light diffuser plate made of the above antistatic material is a three-layer composite layer structure composed of two surface layers A and a middle layer B, and multiple layers are evenly distributed on...

Embodiment 2

[0084] An antistatic material, the preparation and detection methods are the same as in Example 1, wherein the heating and melting temperature can be set to 100°C, and the components and their content ratios and detection results are shown in Table 1.

[0085] Such as Figure 1 to Figure 7 As shown, a self-cleaning light diffusion plate made of the above-mentioned antistatic material, its structural composition, its preparation method, and the preparation system used are the same as in Example 1. The components, content ratios, and test results are shown in Table 1. ,in:

[0086] In said step 1.3, the head temperature of each twin-screw extruder is 195°C, the screw speed of each twin-screw extruder is 100r / min, and the temperature settings of each zone of each twin-screw extruder are respectively: one zone The temperature is 165°C, the temperature in the second zone is 170°C, the temperature in the third zone is 175°C, the temperature in the fourth zone is 180°C, the temperat...

Embodiment 3

[0091] An antistatic material, the preparation and detection methods are the same as in Example 1, wherein the heating and melting temperature can be set to 300°C, and the components and their content ratios and detection results are shown in Table 1.

[0092] Such as Figure 1 to Figure 7 As shown, a self-cleaning light diffusion plate made of the above-mentioned antistatic material, its structural composition, its preparation method, and the preparation system used are the same as in Example 1. The components, content ratios, and test results are shown in Table 1. ,in:

[0093] In said step 1.3, the head temperature of each twin-screw extruder is 285°C, the screw speed of each twin-screw extruder is 400r / min, and the temperature settings of each zone of each twin-screw extruder are respectively: one zone The temperature is 200°C, the temperature in the second zone is 220°C, the temperature in the third zone is 230°C, the temperature in the fourth zone is 240°C, the temperat...

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Abstract

The invention relates to an antistatic material, a self-cleaning light diffusion plate prepared therefrom, and a preparation method of the self-cleaning light diffusion plate. The antistatic material comprises a matrix resin, a light diffusing agent, an antistatic agent, an antioxidant, a light stabilizer and a dispersing agent; the antistatic material has the resistivity up to 107 to 1011 and is remarkable in antistatic performance; the light diffusion plate prepared from such an antistatic material has high light transmission performance and high antistatic self-cleaning performance, effectively improves the light transmission performance and has long-term stability; in addition, raw materials are easy to obtain, the preparation cost is low, and the light diffusion plate is suitable for being applied to related fields of products requiring antistatic prevention and improvement of self-cleaning performance. The preparation method of the self-cleaning light diffusion plate, provided by the invention, is optimal in process, simple in operation, suitable for continuous production and manufacturing, low in economic cost, and suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of preparation and application of a polymer material, in particular to an antistatic material, a self-cleaning light diffusion plate prepared from the antistatic material and a preparation method of the light diffusion plate. Background technique [0002] At present, with the enhancement of awareness of environmental protection and energy saving, LED lamps are widely used due to their remarkable energy-saving effect. And to make the light of LED lights soft, it is usually designed to add LED lamp shades. However, these lampshades have insufficient light softness and loss of light energy to varying degrees during use, and especially after long-term use, a large amount of dust accumulates due to electrostatic adsorption, which aggravates the above defects. [0003] At present, the lampshades used are generally made of polystyrene resin (PS), polymethyl methacrylate (PMMA), polycarbonate (PC) and other similar...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L33/12C08L69/00C08K7/18C08K3/36C08K3/30C08K3/26B29C47/92G02B1/04B29C48/92
CPCB29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895B29C2948/92904
Inventor 郑秀婷王海军吴大鸣刘颖赵中里许红敬鹏生
Owner BEIJING UNIV OF CHEM TECH
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