Elastic optical resin material and preparation method thereof

An optical resin and elastic technology, which is applied in the field of elastic optical resin materials and their preparation, and optical materials, can solve the problems of low production efficiency, high hardness and inelasticity of optical resin materials, so as to alleviate external impact, high production efficiency and excellent reaction conditions mild effect

Inactive Publication Date: 2009-12-30
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The invention mainly solves the problems of low production efficiency, high hardness and inelasticity of existing optical resin materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1, in a stirred tank, add 750g isooctyl thioglycolate at room temperature, seal and stir, vacuumize for 20 minutes, feed nitrogen, add 250g of isophorone diisocyanate while stirring, mix and stir evenly, and then Add triethylamine of 50ppm of the total weight of the compound, heat up to 60°C and react for 6 hours to obtain a colorless and transparent liquid, which is sealed and stored with nitrogen gas to obtain a prepolymer, which is the A component; At room temperature, mix 1000g of 1,4-butanediol diacrylate with 3g of p-hydroxyanisole, stir evenly, and make component B; mix components A and B in a weight ratio of 60:40 After mixing, add the 1-hydroxycyclohexyl phenyl ketone of the two total weight 2.0% as photoinitiator, mix homogeneously and degassing, place it under the ultraviolet lamp (ultraviolet intensity is 50mw / cm ) and irradiate for 10 seconds, After curing, the elastic optical resin material is obtained.

Embodiment 2

[0026] Example 2, in a stirred tank, add 600g ethylene glycol dimercaptoacetate and 200g n-butyl thioglycolate at room temperature, seal and stir, vacuumize for 20 minutes, feed nitrogen, add 200g hexamethylene while stirring Diisocyanate (HDI), mix and stir evenly, then add 100ppm of N,N-dimethylcyclohexylamine based on the total weight of the compound, and react for 6 hours at 60°C to obtain a colorless and transparent liquid , filled with nitrogen and sealed to store, and the prepolymer was prepared, which was component A; at room temperature, 1000g of 1,6-hexanediol dimethacrylate was mixed with 3.5g of hydroquinone, stirred evenly, and formulated Into B component; A component and B component are mixed according to the weight ratio of 67: 33 and then add 1.0% of the total weight of the two 2-hydroxyl-methylphenylpropane-1-one as a photoinitiator, mix Uniform and defoaming, put it under a UV lamp (ultraviolet intensity is 50mw / cm2) and irradiate it for 10 seconds, and obtai...

Embodiment 3

[0027] Example 3, in a stirred tank, add 850g of ethylene glycol di(3-mercaptopropionate) at room temperature, seal and stir, vacuumize for 20 minutes, feed nitrogen, and add 150g of 4,4'- Diphenylmethane diisocyanate (MDI), mix and stir evenly, then add 65ppm of diethylenetriamine based on the total weight of the compound, raise the temperature to 60°C and react for 6 hours to obtain a colorless and transparent liquid, which is filled with nitrogen Sealed and stored to prepare the prepolymer, which is component A; at room temperature, mix 1000g of 1,6-hexanediol diacrylate with 5g of 2,6-dinitro-p-cresol, stir evenly, and prepare B component; after mixing A component and B component by weight ratio of 70:30, add 2-methyl-1-2-morpholino-1-propanone of the total weight of the two as photoinitiator , mixed evenly and defoamed, placed under a UV lamp (ultraviolet intensity: 50mw / cm2) for 10 seconds, and the elastic optical resin material was obtained after curing.

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PUM

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Abstract

The invention relates to an elastic optical resin material and a preparation method thereof. The invention is characterized in that the elastic optical resin material is prepared by the following steps: firstly prepolymerizing mono / dual sulfhydryl compounds and diisocyanate to prepare a component A in the presence of amine catalysts, secondly mixing bifunctional methacrylate ester with polymerization inhibitors to prepare a component B, mixing the component A with the component B in the proportion of 60-70 to 40-30 by weight percent, adding photoinitiators in the weight of 1.0-3.0 percent of the gross weight of the component A and the component B, uniformly mixing and deaerating the component A, the component B and the photoinitiators, and curing the component A, the component B and the photoinitiators by ultraviolet radiation. The preparation method has the advantages of simple preparation process, good process controllability and reproducibility, mild reaction condition, no pollution and low cost. Prepared products have good elasticity and can be used for filling clearances between the covering layer of a cellphone screen and a liquid crystal panel and enhancing brightness and contrast.

Description

Technical field: [0001] The invention relates to the technical field of optical resin materials, in particular to an elastic optical resin material and a preparation method thereof, which is an optical material that can be filled between a liquid crystal panel and a transparent cover layer of the panel. Background technique: [0002] When manufacturing a mobile phone, it is generally necessary to set a gap between the cover layer and the liquid crystal panel to protect the liquid crystal panel from being damaged under external impact. However, since the refractive index of the materials stacked in the order of the glass base plate of the liquid crystal panel, the air layer in the middle gap, and the tempered glass or acrylic resin plate used for the cover layer is different, sunlight or light from the backlight will pass through the above materials. Partial reflections will occur when the interface is closed, causing light scattering and reducing the brightness and contrast ...

Claims

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Application Information

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IPC IPC(8): C08G18/72C08G18/67C08G18/38
Inventor 崔亨利王建斌解海华
Owner YANTAI DARBOND TECH
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