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A PC material with high light transmittance and high haze and its application

A high light transmittance, high haze technology, applied in the field of PC materials, can solve the problems of low light transmittance of microcrystalline cellulose, failure to achieve high light transmittance, and great influence on the light transmittance of the material. The effect of stable secondary quality, improving haze and maintaining structural stability

Active Publication Date: 2021-10-01
DONGGUAN JISHUO IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention patent of CN108276750 discloses a light-diffusing composition with a core-shell structure, and its light-diffusing effect is very good, but the applicant found that the light transmittance of microcrystalline cellulose is low, and the material The light transmittance performance is greatly affected, and it cannot meet the requirements of high light transmittance when used in PC materials

Method used

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  • A PC material with high light transmittance and high haze and its application
  • A PC material with high light transmittance and high haze and its application
  • A PC material with high light transmittance and high haze and its application

Examples

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Effect test

Embodiment 1

[0028] A PC material with high light transmittance and high haze, comprising the following raw materials in parts by weight:

[0029]

[0030]

[0031] Described special light diffusing agent is made through the following steps:

[0032] (1) Get 80 parts by weight of methyl methacrylate, 10 parts by weight of methyl acrylate, 40 parts by weight of nano silicon dioxide, 0.2 parts by weight of n-dodecyl mercaptan and join to 100 parts by weight of organic solvent , add 0.1 parts by weight of the first initiator during the stirring process, and then react at 40°C for 1 hour to obtain a pre-polymerization solution;

[0033] (2) Add 40 parts by weight of acrylonitrile and 5 parts by weight of methyl acrylate to the pre-polymerization liquid, add 0.1 parts by weight of the second initiator during stirring, and then react at 40°C for 2 hours to obtain a polymerization liquid;

[0034] (3) Electrostatically spraying the polymer solution to obtain the special light diffusing ag...

Embodiment 2

[0043] A PC material with high light transmittance and high haze, comprising the following raw materials in parts by weight:

[0044]

[0045] Described special light diffusing agent is made through the following steps:

[0046] (1) Get 100 parts by weight of methyl methacrylate, 20 parts by weight of methyl acrylate, 50 parts by weight of nano silicon dioxide, 0.4 parts by weight of n-dodecyl mercaptan and join 100 parts by weight of organic solvent In the process of stirring, add 0.3 parts by weight of the first initiator, and then react at 50°C for 3 hours to obtain a pre-polymerization solution;

[0047] (2) Add 60 parts by weight of acrylonitrile and 10 parts by weight of methyl acrylate to the pre-polymerization liquid, add 0.3 parts by weight of the second initiator during stirring, and then react at 50°C for 4 hours to obtain a polymerization liquid;

[0048] (3) Electrostatically spraying the polymer solution to obtain the special light diffusing agent.

[0049]...

Embodiment 3

[0057] A PC material with high light transmittance and high haze, comprising the following raw materials in parts by weight:

[0058]

[0059] Described special light diffusing agent is made through the following steps:

[0060](1) Get 90 parts by weight of methyl methacrylate, 15 parts by weight of methyl acrylate, 45 parts by weight of nano silicon dioxide, 0.3 parts by weight of n-dodecyl mercaptan and join to 100 parts by weight of organic solvent In the process of stirring, add 0.2 parts by weight of the first initiator, and then react at 45°C for 2 hours to obtain a pre-polymerization liquid;

[0061] (2) Add 50 parts by weight of acrylonitrile and 7.5 parts by weight of methyl acrylate to the pre-polymerization liquid, add 0.2 parts by weight of the second initiator during stirring, and then react at 45°C for 3 hours to obtain a polymerization liquid;

[0062] (3) Electrostatically spraying the polymer solution to obtain the special light diffusing agent.

[0063]...

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Abstract

The invention relates to the technical field of PC materials, in particular to a PC material with high light transmittance and high haze and its application. The following raw materials are included in parts by weight: 100 parts of PC, 2-6 parts of special light diffusing agent, 0.5-1 part of antioxidant, 0.4-0.6 part of light stabilizer, and 0.4-0.6 part of ultraviolet absorber. The polyacrylonitrile refractive index that the present invention adopts copolymerization of acrylonitrile and methyl acrylate is about 1.4, thus makes polymethyl methacrylate also have certain light diffusion effect through secondary refraction, and the nano-silicon dioxide as nucleus Then, as an inorganic light diffusing agent, it plays a strong refraction effect, thereby significantly improving the PC haze; The amount of nano-silica, so it has little effect on the light transmittance of PC.

Description

technical field [0001] The invention relates to the technical field of PC materials, in particular to a PC material with high light transmittance and high haze and its application. Background technique [0002] At present, energy-saving and environmentally friendly lamps are becoming more and more popular, and the development of LED lamp shade materials has also attracted more and more attention. Common lamp shade materials for lamp tubes include PC (polycarbonate), PMMA (acrylic) and so on. PC is a thermoplastic engineering plastic with superior comprehensive properties. It has excellent weather resistance, high impact resistance, excellent electrical insulation, high light transmittance, and less light energy loss. It is widely used in electrical lighting and other fields. Therefore, the lampshade material of LED lamps tends to use light-diffusing PC resin, which is the future development trend. [0003] LED lamps are required not to be dazzling, but also to maintain ligh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L51/10C08K9/08C08K3/36
CPCC08K2201/003C08K2201/011C08L69/00C08L2203/20C08L51/10C08K9/08C08K3/36
Inventor 王勇
Owner DONGGUAN JISHUO IND CO LTD
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