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Ultraviolet-near infrared region strong absorbing transparent polymer material and method for preparing same

A technology of a transparent polymer and a near-infrared absorber, which is applied in the field of transparent polymer materials with strong absorption in the ultraviolet-near-infrared region and the preparation thereof, can solve the problem of low near-infrared absorption capacity, decreased transparency, poor tolerance, etc. problems, to achieve excellent anti-ultraviolet performance, high anti-aging performance, wide application range

Inactive Publication Date: 2009-01-07
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Inorganic metal oxides and sulfides are added to polymers. Due to the limitation of the amount of addition, their near-infrared absorption ability is not high, and the transparency of the material will drop sharply with the increase of the amount of inorganic substances. It can only be used for For building materials that do not require high near-infrared absorption
However, materials using dyes as near-infrared absorbers, because the dyes have poor tolerance to light and heat, are easy to degrade and lose their ability to absorb near-infrared rays, and most of the near-infrared absorbing dyes also have considerable absorption in visible light. , the prepared material is often strongly colored
In addition, the anti-ultraviolet performance of the above-mentioned materials is not mentioned

Method used

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  • Ultraviolet-near infrared region strong absorbing transparent polymer material and method for preparing same
  • Ultraviolet-near infrared region strong absorbing transparent polymer material and method for preparing same
  • Ultraviolet-near infrared region strong absorbing transparent polymer material and method for preparing same

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Effect test

Embodiment 1

[0036] In situ copolymerization of graft-modified copper phosphate and methyl methacrylate (hereinafter referred to as MMA)

[0037]When the weight ratio of the phosphate monomer copper phosphate to the comonomer methyl methacrylate is 2%, the homemade 0.2g grafted modified copper phosphate is mixed with 10g methyl methacrylate, stirred evenly, and added 0.01g Azobisisobutyronitrile is used as an initiator, the temperature is controlled at 70-80°C, and the pre-polymerization is performed for 30 minutes to 2 hours. After the solution has a certain viscosity, it is poured into a mold with a gap of 2 mm between two clean glass plates. , in an oven at 65°C for 16 hours to obtain the sample. The light transmittance was measured by a UV-Vis-NIR spectrophotometer. The transmission spectrum curve is shown in the attachment figure 1 .

Embodiment 2

[0039] In Situ Copolymerization of Copper Acetate and MMA

[0040] When the weight ratio of the organometallic compound copper acetate to the comonomer MMA is 2%, the homemade 0.2g copper acetate powder is mixed with 10g methyl methacrylate, stirred evenly, and 0.01g of azobisisobutyronitrile is added as an initiator. agent, control the temperature at 70-80°C, pre-polymerize for 30 minutes to 2 hours, pour the solution into a mold with a gap of 2 mm between two clean glass plates after the solution has a certain viscosity, and keep it in an oven at 65°C for 16 hours. A sample is obtained. The light transmittance was measured by a UV-Vis-NIR spectrophotometer. The transmission spectrum curve is shown in the attachment figure 2 .

Embodiment 3

[0042] In Situ Copolymerization of Copper Methacrylate and MMA

[0043] When the weight ratio of the organometallic compound copper methacrylate to the comonomer MMA is 2%, mix 0.2g of homemade copper methacrylate with 10g of methyl methacrylate, stir evenly, and add 0.01g of azobisisobutyronitrile As an initiator, control the temperature at 70-80°C, pre-polymerize for 30 minutes to 2 hours, pour the solution into a mold with a gap of 1 mm between two clean glass plates after the solution has a certain viscosity, and keep it in an oven at 65°C for 16 Hours, the sample is obtained. The light transmittance was measured by a UV-Vis-NIR spectrophotometer. The transmission spectrum curve is shown in the attachment image 3 .

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Abstract

The purpose of the invention is to provide a transparent polymer material with strong absorption capability in the ultra violet-near infrared area, and a preparation method thereof, so that the polymer material has excellent ultra violet ray absorption function while absorbing near infrared ray, and has good visible light permeability. In the utility model, absorbent, which contains metallic ion and has strong absorption capability in the ultra violet-near infrared area, is introduced in the preparation process; the prepared polymer material can absorb the ultra violet ray and the near infrared ray, has weak absorption capability in the visible light area, high stability, good durability and high aging resistance, protects people and equipment against the harm of ultra violet ray on the one hand and can effectively block the near infrared ray on the other hand, is a multi-functional polymer material, has wide scope of application, and can be applied to industries, such as daily articles, photography and photographing devices, electronics, automobile, architecture, etc.

Description

technical field [0001] The invention relates to a transparent polymer material and a preparation method thereof, especially a transparent polymer material with strong absorption in the ultraviolet-near infrared region and a preparation method thereof. technical background [0002] Polymer materials with near-infrared absorption function are important in advanced cameras, filters for micro cameras, display panels for plasma TVs, sunglasses, heat insulation for buildings, glass materials for buildings and cars, etc. applications have been extensively studied. And because strong ultraviolet radiation will have adverse effects on the human body, in many cases, it is necessary to shield ultraviolet rays. Therefore, materials resistant to ultraviolet radiation are also a research hotspot, and there are already many such materials in real life. Application products: People paste a layer of film on the glass of buildings, cars, etc. to block the ultraviolet rays in the sun. The ab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L43/02C08L33/04C08L33/02C08L25/02C08K9/06C08K5/098C08F2/44C08F30/02C08F20/10C08F20/06C08F12/00
Inventor 周晓东陈凌霞周文俊方立沈健伟胡呈元林群芳
Owner EAST CHINA UNIV OF SCI & TECH