PC material with high light transmittance and high haze and application of PC material

A technology with high light transmittance and high haze, which is applied in the field of PC materials, can solve the problems that the light transmittance of the material is greatly affected, the high light transmittance cannot be achieved, and the light transmittance of microcrystalline cellulose is low, so as to improve the The effects of PC haze, low light transmittance, and stable batch quality

Active Publication Date: 2020-01-14
DONGGUAN JISHUO IND CO LTD
View PDF5 Cites 3 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • PC material with high light transmittance and high haze and application of PC material
  • PC material with high light transmittance and high haze and application of PC material
  • PC material with high light transmittance and high haze and application of PC material

Examples

Experimental program
Comparison scheme
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 solution, 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 ...

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 add to 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 solution, 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.

[0...

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]...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
melting pointaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

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 application of the PC material. The PC material includes the following raw materials: in parts by weight, 100 parts of PC, 2-6 parts of a special light diffusant, 0.5-1 part of an antioxidant, 0.4-0.6 part of a light stabilizer and 0.4-0.6 part of an ultraviolet absorbent. The refractive index of polyacrylonitrile which is obtained through co-polymerization of acrylonitrile and methyl acrylate is about 1.4, and therefore polymethyl methacrylate also has acertain light diffusion effect through second refraction; since nano silica as a core is adopted as the inorganic light diffusant, a high refraction effect is achieved, and therefore the haze of thePC material is improved significantly; and moreover, through the three-layer structure of nano-silica, polymethyl methacrylate and polyacrylonitrile, the use amount of nano silica is reduced, and thusthe effect on the light transmittance of the PC material is small.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap