CN107589559B - Anti-blue-light lens, preparation method thereof and glasses - Google Patents
Anti-blue-light lens, preparation method thereof and glasses Download PDFInfo
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Abstract
The invention relates to the field of optical lenses, in particular to an anti-blue-light lens which is prepared from multiple raw materials, wherein the multiple raw materials at least comprise the following components in parts by weight: 99-99.6 parts of matrix resin material, 0.15-0.25 part of ultraviolet blocking agent, 0.05-0.15 part of pigment and 0.1-0.2 part of antioxidant. The invention also relates to a preparation method of the blue-light resistant lens, which is to cure and mold the mixture of the matrix resin material, the ultraviolet blocking agent, the pigment and the antioxidant according to the proportion by a mold. The invention also relates to glasses comprising the blue light resistant lens. The blue-light-resistant lens can effectively block ultraviolet rays and blue light with the wavelength of 400-455 nm, is simple in preparation method and low in cost, can effectively protect eyes, and is favorable for popularization and application.
Description
Technical Field
The invention relates to the field of optical lenses, in particular to a blue-light-resistant lens, a preparation method thereof and glasses.
Background
It is well known that ultraviolet light can harm a person's eyes, but many people are unaware that blue light in visible light can also cause damage to the eyes. The blue light is the wavelength of visible light closest to ultraviolet light, the wavelength range of the blue light is 400-500 nm, and the blue light is blue in the sense of human eyes. With the rapid development of society, people live with various electronic products such as computers, mobile phones, televisions and the like, and increasingly rely on the electronic products, a large amount of irregular short-wave blue light emitted by a screen of the electronic product can directly penetrate through a cornea to reach the retina, so that the retina can generate free radicals, the free radicals can cause the retinal pigment epithelial cells to die, and then the photosensitive cells lack nutrients to cause visual impairment, macular degeneration can be generated, crystalline lenses can be squeezed and contracted, and myopia and even macular degeneration can be caused. The long-term blue light exposure can cause pathological changes to the retina, dry eyes and blurred vision can occur, and serious blindness-causing eye diseases such as macular degeneration, glaucoma and the like can also be caused seriously. But not all blue light is harmful, and the blue light with the wavelength of 400-455 nm is harmful and can injure the retina of a human; and the blue light with the wavelength of 465-495 nm is beneficial blue light, is an indispensable component of visible light, can help pupil contraction and help eyes to normally display the color of an object.
The existing blue-light-resistant lens can only resist blue light and cannot resist ultraviolet rays, and the ultraviolet-resistant lens usually adds an ultraviolet absorbent, so that the blue light with the wavelength being 400-455 nm can not be effectively absorbed by absorbing ultraviolet rays. Therefore, a blue light resistant lens capable of effectively blocking ultraviolet rays and wavelengths of 400-455 nm is lacked.
Disclosure of Invention
The first purpose of the invention is to provide a blue-light resistant lens, so that the blue-light resistant lens can effectively block ultraviolet rays and blue light with the wavelength of 400-455 nm at the same time.
The second purpose of the invention is to provide the preparation method of the blue-light-resistant lens, which is used for producing the blue-light-resistant lens through a simple process flow and at a low cost, and effectively blocking ultraviolet rays and blue light with the wavelength of 400-455 nm.
The third purpose of the invention is to provide glasses, which are provided with the blue light resistant lens, so that ultraviolet rays and blue light with the wavelength of 400-455 nm can be effectively blocked simultaneously, and eyes can be well protected.
The technical problem to be solved by the invention is realized by adopting the following technical scheme.
The invention provides a blue light resistant lens which is prepared from a plurality of raw materials, wherein the raw materials at least comprise the following components in parts by weight: 99-99.6 parts of matrix resin material, 0.15-0.25 part of ultraviolet blocking agent, 0.05-0.15 part of pigment and 0.1-0.2 part of antioxidant.
The invention also relates to a preparation method of the blue-light resistant lens, which is to cure and mold the mixture of the matrix resin material, the ultraviolet blocking agent, the pigment and the antioxidant according to the proportion by a mold.
The invention also relates to glasses comprising the blue light resistant lens.
The blue-light-resistant lens provided by the embodiment of the invention can effectively block ultraviolet rays and blue light with the wavelength of 400-455 nm, is simple in preparation method and low in cost, can effectively protect eyes, and is beneficial to popularization and application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a transmitted light spectrum of a lens prepared in example 9;
fig. 2 is a transmission spectrum of a lens prepared in the comparative example.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below. Those whose specific conditions are not specified in the embodiment or examples are carried out according to the conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The blue light resistant lens, the preparation method thereof and the glasses according to the embodiments of the present invention are specifically described below.
Some embodiments of the present invention provide a blue-light resistant lens, which at least comprises the following raw materials in parts by weight: 99-99.6 parts of matrix resin material, or 99.2-99.5 parts of matrix resin material, or 99.2-99.45 parts of matrix resin material; 0.15-0.25 part of ultraviolet blocking agent, or 0.15-0.23 part of ultraviolet blocking agent, or 0.18-0.23 part of ultraviolet blocking agent; 0.05 to 0.15 portion of pigment, or 0.08 to 0.12 portion of antioxidant and 0.1 to 0.2 portion, or 0.13 to 0.18 portion.
Some embodiments of the present invention provide a blue-light resistant lens, which at least comprises the following raw materials in parts by weight: 99-99.6 parts of matrix resin material, 0.15-0.25 part of ultraviolet blocking agent, 0.05-0.15 part of pigment and 0.1-0.2 part of antioxidant.
Some embodiments of the present invention provide a blue-light resistant lens, which at least comprises the following raw materials in parts by weight: 99.2-99.5 parts of matrix resin material, 0.15-0.23 part of ultraviolet blocking agent, 0.08-0.15 part of pigment and 0.13-0.2 part of antioxidant;
some embodiments of the invention provide a blue-light resistant lens, and the raw materials comprise 99.2-99.45 parts of matrix resin material, 0.18-0.23 part of ultraviolet blocking agent, 0.08-0.12 part of pigment and 0.13-0.18 part of antioxidant.
According to the embodiment of the invention, through scientific proportioning among the components, the components can be better matched, the components are combined together in a hot melting mode, and the ultraviolet blocking agent can be well combined with other components, so that ultraviolet rays and blue light with the wavelength of 400 nm-455 nm can be blocked.
The ultraviolet blocking agent in the embodiment of the present invention is a substance capable of physically reflecting and diffracting ultraviolet rays and blue light from the base resin material, and is different from the principle of reducing ultraviolet rays by absorbing ultraviolet rays with an ultraviolet absorber.
In some embodiments of the present invention, the matrix resin material comprises at least one of allyl diglycol carbonate (CR39), Polycarbonate (PC), polymethyl methacrylate (PMMA) and transparent polyamide TROGAMIDCX), for example, the matrix resin material may be allyl diglycol carbonate, polycarbonate, polymethyl methacrylate or transparent polyamide, or may be a blend of polycarbonate and polymethyl methacrylate, and the proportion thereof is adjusted as required.
Preferably, the matrix resin material is selected from one of propyl diglycol carbonate, polycarbonate, polymethyl methacrylate, a blend of polycarbonate and polymethyl methacrylate and transparent polyamide, for example, the matrix resin material is propyl diglycol carbonate, and can also be transparent polyamide.
The selection of the matrix resin material can be better combined with an ultraviolet blocking agent and other components to block ultraviolet rays and blue light with the wavelength of 400 nm-455 nm.
According to some embodiments, the uv blocking agent includes at least one of silver chloride nanoparticles and nano calcium carbonate, for example, the uv blocking agent may be silver chloride nanoparticles, nano calcium carbonate, or a mixture of silver chloride nanoparticles and nano calcium carbonate. The silver chloride nano particles and the nano calcium carbonate are nano-scale particle sizes, can be better distributed in a mixture, can be better combined with a matrix resin material, play a role in blocking ultraviolet rays and blue light, and can enable the transparency of each part of the whole lens to be more uniform due to better and uniform distribution.
Preferably, the ultraviolet blocking agent comprises silver chloride nanoparticles and nano calcium carbonate, and more preferably, the mass ratio of the silver chloride nanoparticles to the nano calcium carbonate is 2-3: 1. the blocking effect of the lens formed by matching the silver chloride nano particles with the nano calcium carbonate and matching according to the proportion is better.
According to some embodiments of the invention, the antioxidant is selected from at least one of butylated hydroxyanisole, 2, 6-di-tert-butyl-4-methylphenol and diphenylisooctyl phosphite, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) cyclohexyl propionate, dibutyl hydroxytoluene, and dilauryl thiodipropionate, for example, the antioxidant may be butylated hydroxyanisole, or 2, 6-di-tert-butyl-4-methylphenol, or diphenylisooctyl phosphite, or β - (3, 5-di-tert-butyl-4-hydroxyphenyl) cyclohexyl propionate, or dibutyl hydroxytoluene, or dilauryl thiodipropionate, or a mixture of 2, 6-di-tert-butyl-4-methylphenol and diphenylisooctyl phosphite.
According to some embodiments, the antioxidant is selected from the group consisting of butylated hydroxyanisole, 2, 6-di-tert-butyl-4-methylphenol, and diisooctyl diphenylphosphite, β cyclohexyl- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, dibutyl hydroxytoluene, and more preferably, the antioxidant is β cyclohexyl- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate.
The antioxidant can be combined with other substances to ensure that the lens is not easily oxidized, so that the property of the lens is more stable.
According to some embodiments, the pigment is one or a combination of two or more of a blue pigment, a red pigment, and a yellow pigment. The color of the blue light resistant lens of the embodiment of the invention can be yellow, brown, blue, purple, green or gray, wherein the brown, purple, green and gray can be obtained by proportioning and adjusting the blue pigment, the red pigment and the yellow pigment.
Some embodiments of the present invention further provide a method for preparing the above blue-light resistant lens, wherein a mixture of the matrix resin material, the ultraviolet blocking agent, the pigment and the antioxidant is cured and molded through a mold according to the above ratio.
It should be noted that the proportions and specific choices of the matrix resin material, the uv blocking agent, the pigment and the antioxidant component can refer to the above statements, and are not repeated herein.
According to some embodiments of the present invention, when the base resin material is allyl diglycol carbonate, an ultraviolet blocking agent, a pigment, an antioxidant and an initiator are premixed, and the mixture is injected into a mold, heated, cooled and then taken out. In some embodiments, allyl diglycol carbonate, the uv blocking agent, the pigment, the antioxidant and the initiator are stirred by a stirrer to sufficiently mix the components, the degree of mixing has an effect on the final lens, so that the premixed mixture has a desired viscosity, the premixed mixture is injected into a glass mold by a manual or mechanical method and filled, the filled mold is sent to a curing furnace (heating furnace) to be heated and cured, the polymer is cooled to be hardened, and then the hardened polymer is taken out of the glass mold. Since allyl diglycol carbonate is a thermosetting resin, the lens can be more favorably molded by the above method.
According to some embodiments, the heating is performed by heating to 135-150 ℃ for 3-5 hours, and continuing to heat to 230-300 ℃ for 6-7 hours. The polymerization is carried out at 230-300 ℃ by sectional heating and heat preservation, so that the heat storage effect is mainly realized at 135-150 ℃. The performance of the formed lens is better due to the two-section type temperature rise heating, and the blocking effect on ultraviolet rays and blue light is better.
According to some embodiments, the cooling is performed by firstly cooling to 135-150 ℃ at a constant speed, wherein the cooling duration is 2-3 hours, and then continuously cooling to room temperature at a constant speed for 4-5 hours, and the cooling process is more relaxed through two-section type cooling, so that the stress distribution in the lens is more uniform, and the performance is better.
According to some embodiments, the initiator is azobisisobutyronitrile.
According to some embodiments, when the matrix resin material is selected from one of polycarbonate, polymethyl methacrylate, a blend of polycarbonate and polymethyl methacrylate, and transparent polyamide, the mixture of the matrix resin material, the ultraviolet blocking agent, the pigment, and the antioxidant is heated and melted to be fluid, and then pressurized and injected into a mold, and after cooling, the mixture is taken out. Because the matrix resin material is thermoplastic resin, the lens can have better performance by melting and then injecting.
According to some embodiments, the mixture of the matrix resin material, the ultraviolet blocking agent, the pigment and the antioxidant is put into an injection molding machine, heated by a feed pipe of the injection molding machine and kneaded by a screw to be melted into a fluid state, pressurized and injected into a mold, and then pressure-maintained and cooled, and then taken out. Wherein the pressure is increased to 0.15 to 0.3 MPa. Under the pressure, the molding can be better carried out, and the distribution is more uniform. In some embodiments, the cooling is performed by first cooling to 150-160 ℃ at a constant speed, lasting for 2-3 hours, and then cooling to room temperature at a constant speed for 4-5 hours. The cooling process is more relaxed through the cooling of the two sections, so that the stress distribution inside the lens is more uniform, and the performance is better.
Some embodiments of the invention also relate to a lens comprising the above-described anti-blue light lens.
Through the scientific proportion among the above-mentioned each component, each component can cooperate better, combine above-mentioned component together through the mode of hot melt, because ultraviolet blocking agent can combine together with other components well, can separate ultraviolet ray and wavelength 400nm ~ 455 nm's blue light, its principle is different from ultraviolet absorbent and is the absorption to the ultraviolet ray, but separates forms such as ultraviolet ray and wavelength 400nm ~ 455nm reflect and diffract through the structure that combines together to reach the purpose of ultraviolet resistance and blue light, protected eyes well.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
The blue-light resistant lens comprises the following raw materials in parts by weight: 99 parts of a matrix resin material; 0.15 part of ultraviolet blocking agent; 0.05 part of pigment and 0.1 part of antioxidant. The ultraviolet-resistant coating comprises a base resin material, an ultraviolet-resistant agent, an antioxidant and an initiator, wherein the base resin material is allyl diglycol carbonate, the ultraviolet-resistant agent is silver chloride nanoparticles, the antioxidant is butyl hydroxy anisole, and the initiator is azobisisobutyronitrile.
The allyl diglycol carbonate, the ultraviolet blocking agent, the pigment, the antioxidant and the initiator are stirred by a stirrer, so that the components can be fully mixed, the premix is injected into a glass mold and filled fully, the filled mold is sent into a curing furnace (heating furnace) for heating and curing, the temperature is firstly raised to 135 ℃, the temperature is kept for 3 hours, the temperature is continuously raised to 230 ℃, and the temperature is kept for 6 hours. And cooling to harden the polymer, cooling to 135 deg.c at constant speed for 2 hr, and cooling to room temperature for 4 hr. The hardened polymer is then removed from the glass mold.
Example 2
The blue-light resistant lens comprises the following raw materials in parts by weight: 99.6 parts of a matrix resin material; 0.25 part of ultraviolet blocking agent; 0.15 part of pigment and 0.2 part of antioxidant. Wherein the matrix resin material is allyl diglycol carbonate, the ultraviolet blocking agent is nano calcium carbonate, the antioxidant is dibutyl hydroxy toluene, and the initiator is azobisisobutyronitrile.
The allyl diglycol carbonate, the ultraviolet blocking agent, the pigment, the antioxidant and the initiator are stirred by a stirrer, so that the components can be fully mixed, the premix is injected into a glass mold and filled fully, the filled mold is sent into a curing furnace (heating furnace) for heating and curing, the temperature is firstly raised to 150 ℃, the temperature is kept for 5 hours, the mold is continuously heated to 300 ℃, and the temperature is kept for 7 hours. And cooling to harden the polymer, cooling to 150 deg.c at constant speed for 3 hr, and cooling to room temperature for 5 hr. The hardened polymer is then removed from the glass mold.
Example 3
The blue-light resistant lens comprises the following raw materials in parts by weight: 99.5 parts of a matrix resin material; 0.23 part of ultraviolet blocking agent; 0.12 part of pigment and 0.18 part of antioxidant. The matrix resin material is allyl diglycol carbonate, the ultraviolet blocking agent is silver chloride nanoparticles, the antioxidant is diisooctyl diphenyl phosphite, and the initiator is azobisisobutyronitrile.
The allyl diglycol carbonate, the ultraviolet blocking agent, the pigment, the antioxidant and the initiator are stirred by a stirrer, so that the components can be fully mixed, the premix is injected into a glass mold and filled fully, the filled mold is sent into a curing furnace (heating furnace) for heating and curing, the temperature is firstly raised to 140 ℃, the temperature is kept for 4 hours, the mold is continuously heated to 250 ℃, and the temperature is kept for 6.5 hours. Then the polymer is hardened by cooling, the temperature is reduced to 140 ℃ at a constant speed, the cooling lasts for 2.5 hours, and then the temperature is reduced to room temperature at a constant speed for 4.5 hours. The hardened polymer is then removed from the glass mold.
Example 4
The blue-light resistant lens comprises the following raw materials in parts by weight: 99.45 parts of a matrix resin material; 0.2 part of ultraviolet blocking agent; 0.1 part of pigment and 0.15 part of antioxidant. The ultraviolet blocking agent is a mixture of silver chloride nanoparticles and nano sodium carbonate, and the mass ratio of the silver chloride nanoparticles to the nano sodium carbonate is 2: 1, the antioxidant is butyl hydroxy anisole, and the initiator is azobisisobutyronitrile.
The allyl diglycol carbonate, the ultraviolet blocking agent, the pigment, the antioxidant and the initiator are stirred by a stirrer, so that the components can be fully mixed, the premix is injected into a glass mold and filled fully, the filled mold is sent into a curing furnace (heating furnace) for heating and curing, the temperature is firstly raised to 140 ℃, the temperature is kept for 4 hours, the heating is continuously carried out to 260 ℃, and the temperature is kept for 7 hours. And cooling to harden the polymer, cooling to 145 ℃ at a constant speed, lasting for 3 hours, and then cooling to room temperature at a constant speed for 5 hours. The hardened polymer is then removed from the glass mold.
Example 5
The blue-light resistant lens comprises the following raw materials in parts by weight: 99.45 parts of a matrix resin material; 0.2 part of ultraviolet blocking agent; 0.1 part of pigment and 0.15 part of antioxidant. The ultraviolet blocking agent is a mixture of silver chloride nanoparticles and nano sodium carbonate, and the mass ratio of the silver chloride nanoparticles to the nano sodium carbonate is 2: 1, the antioxidant is butyl hydroxy anisole, and the initiator is azobisisobutyronitrile.
The allyl diglycol carbonate, the ultraviolet blocking agent, the pigment, the antioxidant and the initiator are stirred by a stirrer, so that the components can be fully mixed, the premix is injected into a glass mold and filled, the filled mold is sent into a curing furnace (heating furnace) for heating and curing, the temperature is heated to 260 ℃, and the curing is kept for 10 hours. Then the polymer is hardened by cooling, and the temperature is reduced for 8 hours to the room temperature at a constant speed. The hardened polymer is then removed from the glass mold.
Example 6
The blue-light resistant lens comprises the following raw materials in parts by weight: 99 parts of a matrix resin material; 0.15 part of ultraviolet blocking agent; 0.05 part of pigment and 0.1 part of antioxidant. The matrix resin material is polycarbonate, the ultraviolet blocking agent is silver chloride nanoparticles, the antioxidant is butyl hydroxy anisole, and the initiator is azobisisobutyronitrile.
Putting the mixture of the matrix resin material, the ultraviolet blocking agent, the pigment and the antioxidant into an injection molding machine, heating and melting the mixture into a fluid state through a feeding pipe of the injection molding machine and screw mixing, pressurizing to 0.15MPa to inject into a mold, maintaining the pressure, cooling and taking out. Wherein, the cooling is to cool the temperature to 150 ℃ at a constant speed, the cooling duration is 2 hours, and then the temperature is cooled to room temperature at a constant speed for 4 hours.
Example 7
The blue-light resistant lens comprises the following raw materials in parts by weight: 99.6 parts of a matrix resin material; 0.25 part of ultraviolet blocking agent; 0.15 part of pigment and 0.2 part of antioxidant. Wherein the matrix resin material is polycarbonate, the ultraviolet blocking agent is nano calcium carbonate, the antioxidant is dilauryl thiodipropionate, and the initiator is azobisisobutyronitrile.
Putting the mixture of the matrix resin material, the ultraviolet blocking agent, the pigment and the antioxidant into an injection molding machine, heating and melting the mixture into a fluid state through a feeding pipe of the injection molding machine and screw mixing, pressurizing to 0.15MPa to inject into a mold, maintaining the pressure, cooling and taking out. Wherein, the cooling is to cool the temperature to 150 ℃ at a constant speed, the cooling duration is 2 hours, and then the temperature is cooled to room temperature at a constant speed for 4 hours.
Example 8
The blue-light resistant lens comprises the following raw materials in parts by weight: 99.5 parts of a matrix resin material; 0.23 part of ultraviolet blocking agent; 0.12 part of pigment and 0.18 part of antioxidant. The matrix resin material is polycarbonate, the ultraviolet blocking agent is a mixture of silver chloride nanoparticles and nano calcium carbonate, and the mass ratio of the silver chloride nanoparticles to the nano calcium carbonate is 3: 1, the antioxidant is butyl hydroxy anisole, and the initiator is azobisisobutyronitrile.
Putting the mixture of the matrix resin material, the ultraviolet blocking agent, the pigment and the antioxidant into an injection molding machine, heating and melting the mixture into a fluid state through a feeding pipe of the injection molding machine and screw mixing, pressurizing to 0.30MPa to inject into a mold, maintaining the pressure, cooling and taking out. Wherein, the cooling is to cool the temperature to 160 ℃ at a constant speed, the cooling duration is 3 hours, and then the temperature is cooled to room temperature at a constant speed for 5 hours.
Example 9
The raw materials of the blue-light resistant lens comprise, by weight, 99.45 parts of a base resin material, 0.2 part of an ultraviolet blocking agent, 0.1 part of a pigment and 0.15 part of an antioxidant, wherein the base resin material is polycarbonate, the ultraviolet blocking agent is a mixture of silver chloride nanoparticles and nano calcium carbonate, the mass ratio of the silver chloride nanoparticles to the nano calcium carbonate is 2.5: 1, the antioxidant is β - (3, 5-di-tert-butyl-4-hydroxyphenyl) cyclohexyl propionate, and the initiator is azobisisobutyronitrile.
Putting the mixture of the matrix resin material, the ultraviolet blocking agent, the pigment and the antioxidant into an injection molding machine, heating and melting the mixture into a fluid state through a feeding pipe of the injection molding machine and screw mixing, pressurizing to 0.2MPa, injecting into a mold, maintaining the pressure, cooling and taking out. Wherein, the cooling is to cool the temperature to 155 ℃ at a constant speed for 2.5 hours, and then cool the temperature to room temperature at a constant speed for 3.5 hours.
Example 10
The raw materials of the blue-light resistant lens comprise, by weight, 99.45 parts of a base resin material, 0.2 part of an ultraviolet blocking agent, 0.1 part of a pigment and 0.15 part of an antioxidant, wherein the base resin material is polycarbonate, the ultraviolet blocking agent is a mixture of silver chloride nanoparticles and nano calcium carbonate, the mass ratio of the silver chloride nanoparticles to the nano calcium carbonate is 2.5: 1, the antioxidant is β - (3, 5-di-tert-butyl-4-hydroxyphenyl) cyclohexyl propionate, and the initiator is azobisisobutyronitrile.
Putting a mixture of a matrix resin material, an ultraviolet blocking agent, a pigment and an antioxidant into an injection molding machine, heating and melting the mixture into a fluid shape through a feeding pipe of the injection molding machine and screw mixing, pressurizing to 0.08MPa, injecting into a mold, maintaining the pressure, and reducing the temperature at a constant speed for 6 hours to room temperature, and then taking out.
Examples 11 to 13
Compared with example 9, the difference is only that the matrix resin materials of examples 11-13 are selected from polymethyl methacrylate, a blend of polycarbonate and polymethyl methacrylate, and transparent polyamide in sequence, and the mass ratio of polycarbonate to polymethyl methacrylate in the blend of polycarbonate and polymethyl methacrylate is 1: 1.
comparative example 1
The only difference from example 9 is that the ultraviolet blocking agent in comparative example 1 was added in an amount of 0.12 parts.
Test examples
The lenses obtained in examples 1 to 13 and comparative examples 1 to 2 were subjected to transmission spectrum analysis by a lens spectrum transmittance detector, and the average blocking rate of each lens against ultraviolet rays and blue light of 400 to 455nm was calculated after the test, and the results are shown in table 1. Wherein, fig. 1 and 2 show transmission spectra of example 9 and a comparative example, respectively.
TABLE 1
As can be seen from the data in table 1, the blocking rate of the lens obtained in the embodiment of the present invention to ultraviolet light can reach 100%, and the blocking rate to blue light with a wavelength of 400nm to 455nm can reach 80% or more on average. A comparison of the data from example 4 and example 5 shows that the lens barrier properties are better with the stepwise heating and cooling. It can be seen from the comparison of fig. 1 and fig. 2 that the blocking effect of the uv blocking agent achieved within the selected range of the present application is significantly enhanced.
In summary, through scientific proportioning among the components, the components can be better matched, the components are combined together in a hot melting mode, and the ultraviolet blocking agent can be well combined with other components to block ultraviolet rays and blue light with the wavelength of 400 nm-455 nm.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (9)
1. The preparation method of the blue-light resistant lens is characterized in that the blue-light resistant lens is prepared from a plurality of raw materials, wherein the raw materials at least comprise the following components in parts by weight: 99-99.6 parts of matrix resin material, 0.15-0.25 part of ultraviolet blocking agent, 0.05-0.15 part of pigment and 0.1-0.2 part of antioxidant; the ultraviolet blocking agent comprises at least one of silver chloride nano particles and nano calcium carbonate; the matrix resin material is selected from one of allyl diglycol carbonate, polycarbonate, polymethyl methacrylate, a blend of polycarbonate and polymethyl methacrylate and transparent polyamide;
the preparation method comprises the following steps:
when the matrix resin material is allyl diglycol carbonate, premixing the allyl diglycol carbonate, the ultraviolet blocking agent, the pigment, the antioxidant and the initiator, injecting the mixture into a mold, heating, cooling and taking out; heating is carried out by firstly heating to 135-150 ℃, keeping for 3-5 hours, continuously heating to 230-300 ℃, and keeping for 6-7 hours; cooling is that the temperature is reduced to 135-150 ℃ at a constant speed, the temperature reduction duration is 2-3 hours, and then the temperature is reduced to room temperature at a constant speed for 4-5 hours;
when the matrix resin material is selected from one of polycarbonate, polymethyl methacrylate, a blend of polycarbonate and polymethyl methacrylate and transparent polyamide, heating and melting the mixture of the matrix resin material, the ultraviolet blocking agent, the pigment and the antioxidant to be fluid, pressurizing and injecting the mixture into a mold, keeping the pressure, cooling and taking out the mixture; pressurizing to 0.15-0.3 MPa; the cooling is to cool the temperature to 150-160 ℃ at a constant speed, the cooling duration is 2-3 hours, and then the temperature is cooled to room temperature at a constant speed for 4-5 hours.
2. The method for preparing a blue-light resistant lens according to claim 1, wherein the raw materials comprise, in parts by weight: 99.2-99.5 parts of the matrix resin material, 0.15-0.23 part of the ultraviolet blocking agent, 0.08-0.15 part of the pigment and 0.13-0.2 part of the antioxidant.
3. The method for preparing a blue-ray resistant lens according to claim 2, wherein the plurality of raw materials comprise 99.2 to 99.5 parts of the base resin material, 0.15 to 0.23 part of the ultraviolet blocking agent, 0.08 to 0.15 part of the pigment, and 0.13 to 0.2 part of the antioxidant.
4. The method for preparing the blue-light resistant lens according to any one of claims 1 to 3, wherein the ultraviolet blocking agent comprises silver chloride nanoparticles and nano calcium carbonate, and the mass ratio of the silver chloride nanoparticles to the nano calcium carbonate is 2-3: 1.
5. the method for preparing a blue-light resistant lens according to any one of claims 1 to 3, wherein the antioxidant is at least one selected from the group consisting of butylated hydroxyanisole, 2, 6-di-tert-butyl-4-methylphenol and diphenylisooctyl phosphite, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) cyclohexyl propionate, dibutyl hydroxytoluene, and dilauryl thiodipropionate.
6. The method for preparing a blue-light resistant lens according to any one of claims 1 to 3, wherein the antioxidant is β - (3, 5-di-tert-butyl-4-hydroxyphenyl) cyclohexyl propionate.
7. The method for preparing blue-light resistant lens according to any one of claims 1 to 3, wherein the pigment is one or a combination of two or more of blue pigment, red pigment and yellow pigment.
8. The method for preparing a blue-light resistant lens according to any one of claims 1 to 3, wherein the initiator is azobisisobutyronitrile.
9. The method of claim 1, wherein the mixture of the base resin material, the UV blocking agent, the pigment and the antioxidant is injected into an injection molding machine, heated and melted to be fluid by heating a feed pipe of the injection molding machine and kneading by a screw, pressurized and injected into a mold, and then pressure-maintained and cooled, and then taken out.
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| CN201710957327.1A CN107589559B (en) | 2017-10-16 | 2017-10-16 | Anti-blue-light lens, preparation method thereof and glasses |
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| CN201710957327.1A CN107589559B (en) | 2017-10-16 | 2017-10-16 | Anti-blue-light lens, preparation method thereof and glasses |
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| CN107589559A CN107589559A (en) | 2018-01-16 |
| CN107589559B true CN107589559B (en) | 2020-05-22 |
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| CN108752536A (en) * | 2018-04-12 | 2018-11-06 | 安徽皖东树脂科技有限公司 | Antifog resin lens and preparation method thereof |
| CN109306165A (en) * | 2018-08-14 | 2019-02-05 | 江苏硕延光学眼镜有限公司 | A kind of optical resin composition with high impact resistance, heat resistance and refractive index |
| CN110193963B (en) * | 2019-06-03 | 2020-09-18 | 张涛 | Preparation method of optical lens for regulating and controlling myopia axis |
| CN111297556A (en) * | 2020-04-13 | 2020-06-19 | 同曦集团有限公司 | Antibacterial and antiviral goggles and preparation method thereof |
| CN112327513B (en) * | 2020-08-19 | 2022-08-02 | 湖北立天生物工程有限公司 | Medical protective eyeshade for preventing harmful light and infection after eye operation |
| CN113667069A (en) * | 2021-08-30 | 2021-11-19 | 江苏韩创新材料有限公司 | Anti-red light lens and preparation method thereof |
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| US9131209B1 (en) * | 2014-10-27 | 2015-09-08 | Can Demirba{hacek over (g)} | Method for automated realtime conversion of 2D RGB images and video to red-cyan stereoscopic anaglyph 3D |
| CN107082838A (en) * | 2017-05-15 | 2017-08-22 | 上海伟星光学有限公司 | The 1.499 refractive index resin eyeglasses with protection royal purple optical property |
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