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Preparation method of high-refractive-index optical material with ultraviolet shielding effect

A technology of high refractive index and optical materials, applied in optics, optical components, instruments, etc., can solve the problems of high brittleness, resistance to atomic oxygen erosion, poor impact resistance and wear resistance, etc.

Active Publication Date: 2020-02-18
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Epoxy resin has a series of excellent characteristics such as high bonding strength, small shrinkage, good mechanical properties, excellent manufacturability and good chemical stability, and is widely used in many fields such as electrical, mechanical, chemical and aerospace; but the general environment Oxygen resin cured products are more brittle, have poor impact resistance and wear resistance, and are not resistant to atomic oxygen erosion

Method used

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  • Preparation method of high-refractive-index optical material with ultraviolet shielding effect
  • Preparation method of high-refractive-index optical material with ultraviolet shielding effect

Examples

Experimental program
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Embodiment 1

[0025] Synthesis of High Refractive Index Nanohybrid Materials:

[0026] (1) Add 16 parts of thiophenol, 23 parts of 1,8-diazabicyclo[5.4.0]undec-7-ene, 230 parts into a 250mL three-necked flask equipped with a stirrer and a condenser Toluene, and stirred at room temperature for 10 min; 5.5 parts of epichlorohydrin was slowly added dropwise to a three-necked flask and stirred at room temperature for 16 h;

[0027] (2) Then the reacted mixture was distilled under reduced pressure to remove volatile matter, and the residue was sequentially washed with 100 parts of dichloromethane, 100 parts of hydrochloric acid (concentration of 36.5wt%-38.5wt%), 100 parts of deionized water and 50 parts brine wash;

[0028] (3) Dry the washed organic matter with 10 g of anhydrous sodium sulfate, filter, and concentrate under reduced pressure at 0.01 MPa and 80°C for 35 min; purify the crude product by silica gel column chromatography, using hexane solution as the eluent, to obtain Colorless l...

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Abstract

The invention discloses a preparation method of a high-refractive-index optical material with an ultraviolet shielding effect, and belongs to the technical field of optical materials. Epoxy chloropropane, thiophenol and acryloyl chloride are used for synthesizing an acrylate monomer, then the acrylate monomer and a silane coupling agent are subjected to a free radical polymerization reaction to synthesize a sulfur-containing high-refractive-index optical resin matrix, and finally TiO2 nanoparticles are introduced through a sol-gel method, so that the high-refractive-index optical material withthe ultraviolet shielding effect is prepared. The acrylate monomer containing carbon-carbon double bonds is synthesized, and then the transparent optical resin with high refractive index and ultraviolet shielding effect is prepared through free radical polymerization reaction and sol-gel reaction.

Description

technical field [0001] The invention relates to a preparation method of a high-refractive-index optical material with ultraviolet shielding effect, belonging to the technical field of optical materials. Background technique [0002] As an important part of optical resins, organic resins are attracting more and more attention. In optical materials, the refractive index is a very important indicator. Epoxy resin has a series of excellent characteristics such as high bonding strength, small shrinkage, good mechanical properties, excellent manufacturability and good chemical stability, and is widely used in many fields such as electrical, mechanical, chemical and aerospace; but the general environment Oxygen resin cured products are more brittle, have poor impact resistance and wear resistance, and are not resistant to atomic oxygen erosion. [0003] Blending modification is one of the simple and effective ways to improve resin performance. Silicone epoxy resin is a kind of po...

Claims

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Application Information

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IPC IPC(8): C08F220/38C08F230/08C08F2/44C08K3/22G02B1/04
CPCC08F2/44C08F220/38C08K3/22C08K2003/2241C08K2201/011G02B1/04C08F230/08
Inventor 姚伯龙胡绪灿陈昆刘嘉成刘竞王利魁李承东
Owner JIANGNAN UNIV