Organic-inorganic hybridized optical resin composition with high impact resistance, heat resistance and refractive index and preparation method thereof

Abstract

The invention relates to an organic-inorganic hybridized optical resin composition with high impact resistance, heat resistance and refractive index and a preparation method thereof. The optical resin composition comprises the following components by weight: 100% of a mixture A, 0.1-5% of an inorganic material, 0.05-6% of an ultraviolet absorber, 0.01-5% of a mold release agent, 0.01-5% of a polymerization initiator and 0.03-2% of a color modifier. The optical resin composition of the invention can be used for the preparation of optical resin lenses, so that the optical resin lenses have the characteristics of light weight, easy molding, easy dyeing, high transparency and a high Abbe number. After surface spraying, the composition has the advantages of high impact resistance, high heat resistance and high tortuosity ratio.

Description

technical field [0001] The invention relates to an optical resin composition with high impact resistance, heat resistance and refractive index using organic and inorganic hybridization and a preparation method thereof, which belongs to the technical field of optical resin materials. Background technique [0002] Compared with ordinary glass lenses, optical resin lenses are widely used in the market because of their light weight, easy staining and excellent impact resistance. The surface needs to be sprayed many times (SiO2, ZrO2, etc.), but the strength of the lens will decrease significantly after spraying. This kind of problem occurs in low curvature lenses, medium curvature lenses, high curvature lenses and initial high curvature lenses. [0003] In the prior art, the optical resin lens (center thickness 1.2mm) made of high molecular diethylene glycol bisallyl carbonate with low bending performance is coated with FDA standard steel balls (16.8g) after multiple coatings. ...

AI Technical Summary

Problems solved by technology

[0004] The high bending lens in the prior art, main component is to add the mixture of dialkyl isophthalic acid and diethylene glycol bisallyl carbonic acid in isophthalic acid dialkyl polyol, and in order to increase lens intensity, add to Ethanol was added to dialkyl isophthalic acid, but modified diallyl isophthalate was used to make medium-curved resin lenses (center thickness 1.2mm). After many coating tests, it failed to pass the FDA test. ; At the same time, in order to achieve the purpose of strengthening the pentaerythritol tetrakis (3-mercaptopropionate) lens, alcohol is added to the isocyanate and cyanate to make an optical resin lens with excellent strength, but because the resin lens has a very high viscosity , leading to slow injection speed and a large amount of smoke generated when the liquid phase flows, which eventually leads to a very high defect rate of the produced optical resin lenses

[0005] High tortuosity and initial high tortuous lenses in the prior art use polymers of diisocyanate and 1,2-dimercapto and ethyl-3-mercaptopropane, and utilize aliphatic isocyanic acid, 1,2-dimercapto And ethyl-3-mercaptopropane and tetrakis (3-mercaptopropionate) pentaerythritol ester improve the curvature of the lens. Although this method improves the curvature, the final lens fails to pass the FDA test after repeated spraying, and the injection molding After the polycarbonate lens has been sprayed many times, although its strength increases, its heat resistance is weakened, and the center of the lens is seriously deformed.

[0006] The impact-resistant lens in the prior art adopts isocyanate, cyanate, tetrakis (3-mercaptopropionate) pentaerythritol ester and the mixture of tetrakis (3-mercaptopropionate) pentaerythritol ester and pentaerythritol tetramethacrylate to develop high Strengthened optical lenses, but the strength of the medium bending lenses made by this method is higher, but it has no effect on the high bending lenses. At the same time, it is consistent with the resin lens polycarbonate made by the injection molding method, and its heat resistance is weak and after After spraying, the defect rate is high

The central area of ​​the lens is severely deformed after multiple sprays