CN110551247B - Blue light filtering material and preparation method thereof - Google Patents
Blue light filtering material and preparation method thereof Download PDFInfo
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- CN110551247B CN110551247B CN201810571976.2A CN201810571976A CN110551247B CN 110551247 B CN110551247 B CN 110551247B CN 201810571976 A CN201810571976 A CN 201810571976A CN 110551247 B CN110551247 B CN 110551247B
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Abstract
The invention discloses a blue light filtering material and a preparation method thereof. The blue light filtering material comprises at least one forming substrate and at least one compound with blue light filtering performance. The forming substrate is provided with an unsaturated bond, and the compound has a structure terminal of a carbon-carbon double bond, so that the compound can generate copolymerization reaction with the forming substrate to prepare the blue light filtering material; the compound has the following structural general formula:
wherein R1 is
n is an integer of 1 to 20; r2 is hydrogen or
R3 is hydrogen radical or methyl.
Description
Technical Field
The invention relates to the technical field of blue light filtering, in particular to a blue light filtering material and a preparation method thereof.
Background
With the rapid development of scientific technology, the relationship between electronic products and human beings is becoming more and more intimate, and the electronic products have already occupied an extremely important position in the daily life of people. However, most display parts of electronic products, such as liquid crystal displays, mobile phone screens, etc., emit blue light. The blue light is high-energy short wave with the wavelength of 400 nm-450 nm, has extremely high energy, can penetrate through the crystalline lens of the human eye to reach the retina, and generates free radicals when the retina is irradiated by the blue light, and the free radicals can cause the decay of retinal pigment epithelial cells, so that the nutrient shortage of photosensitive cells in the human eye can be caused, and the visual impairment is caused. Therefore, if these electronic products are used for a long time, the eyes of the user are irradiated with blue light for a long time, and the eyes are directly and irreversibly damaged.
In order to reduce or avoid the damage to human eyes caused by blue light irradiation, many devices or products for filtering blue light, such as blue light protection glasses, blue light filtering protection films, etc., are available on the market. At present, most of devices for filtering blue light on the market filter the blue light by adding a substance with blue light filtering performance into a substrate of the device, so as to block the blue light from directly irradiating the eyes of a user. However, in such a device, the bonding between the substance having blue light filtering property and the substrate of the device is weak, so that the device is separated from the substrate of the device due to long-term use or storage environment, thereby causing the device to have a drastically reduced blue light blocking ability, even losing the blue light blocking ability, not only seriously affecting the quality of the device, but also causing irreparable damage to the user.
Disclosure of Invention
The invention aims to provide a blue light filtering material and a preparation method thereof, wherein the blue light filtering material can continuously maintain stable blue light filtering capability so as to improve the continuity and stability of the blue light filtering material in filtering blue light.
Another objective of the present invention is to provide a blue light filtering material and a method for preparing the same, wherein a compound having blue light filtering performance in the blue light filtering material can be firmly combined with a formed substrate of the blue light filtering material, so as to prevent the compound from being detached from the formed substrate of the blue light filtering material.
Another objective of the present invention is to provide a blue light filtering material and a method for preparing the same, wherein the blue light filtering material is prepared by a copolymerization reaction between a compound having a blue light filtering property and a forming substrate, so as to greatly improve a bonding force between the compound having the blue light filtering property and the forming substrate.
Another object of the present invention is to provide a blue light filtering material and a method for preparing the same, wherein the blue light filtering material can be used to manufacture products or devices such as a polarizing film, a brightness enhancement film, a diffusion film, a light filtering film, a protective film, an explosion-proof film, a liquid crystal display, a contact lens, and a pair of protective glasses, etc., so that the products or devices have a stable blue light filtering capability.
To achieve at least one of the above objects or other objects and advantages, the present invention provides a blue light filtering material, including:
at least one shaped substrate, wherein the shaped substrate has an unsaturated bond therein; and
at least one compound with blue light filtering performance, wherein the compound has a structure terminal of a carbon-carbon double bond, so that the compound can generate copolymerization reaction with the forming substrate to prepare the blue light filtering material;
wherein the compound has the following general structural formula:
wherein R1 is
n is an integer of 1 to 20; r2 is hydrogen or
R3 is hydrogen radical or methyl.
In one embodiment of the invention, the compound is selected from
In an embodiment of the invention, the blue light filtering material is prepared from the following raw materials in percentage by weight: 0.25% to 3% of said compound and 97% to 99.75% of said shaped substrate.
In an embodiment of the present invention, the blue light filtering material can be used for manufacturing a polarizing film, a brightness enhancement film, a diffusion film, a light filtering film, a protective film, an explosion-proof film, a liquid crystal display, a contact lens or a pair of protective glasses.
In one embodiment of the present invention, the forming substrate includes a hydrophilic material and an initiator.
In one embodiment of the present invention, the hydrophilic material is selected from one or more of 2-hydroxyethyl methacrylate, methacrylic acid, acrylic acid, N-vinyl-2-pyrrolidone, N-dimethylacrylamide, glycidyl methacrylate, and diethylaminoethyl methacrylate.
In one embodiment of the present invention, the initiator is a thermal initiator or a photo initiator.
In one embodiment of the present invention, the thermal initiator is selected from one or more of 2, 2' -azobisisobutyronitrile, azobisisoheptonitrile, and benzoyl peroxide.
In one embodiment of the present invention, the photoinitiator is selected from one or more of phenyl bis (2,4, 6-trimethylbenzoyl) -phosphine oxide and 2-hydroxy-2-methyl-1-phenyl-1-propanone.
In an embodiment of the present invention, the forming substrate further includes a cross-linking agent.
In one embodiment of the invention, the cross-linking agent is selected from one or more of ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, polyethylene glycol dimethacrylate, propylene-terminated ethylene oxide dimethylsiloxane-ethylene oxide ABA block copolymer and trimethylolpropane trimethacrylate.
In one embodiment of the present invention, the forming substrate further comprises a non-hydrophilic material.
In one embodiment of the present invention, the non-hydrophilic substance is selected from one or more of (3-methacryloxy-2-hydroxypropoxy) propylbis (trimethylsiloxy) methyl, methacryloxypropyltris (trimethylsiloxy) silane, and polydimethylsiloxane.
In one embodiment of the present invention, the forming substrate includes a non-hydrophilic material and an initiator.
According to another aspect of the present invention, the present invention further provides a method for preparing a blue light filtering material, comprising the steps of:
preparing a shaped substrate and a compound having blue light filtering properties; and
polymerizing the shaped substrate and the compound to produce a blue light filtering material;
wherein the compound used in the reaction has the following general structural formula:
wherein R1 is
n is an integer of 1 to 20; r2 is hydrogen or
R3 is hydrogen radical or methyl.
In one embodiment of the present invention, the step of polymerizing the shaped substrate and the compound to form a blue light filtering material further comprises the steps of:
arranging the forming substrate and the compound in a forming die to prepare a mixed solution;
heating the mixed solution in the forming mold to enable the forming base material and the compound in the mixed solution to generate a polymerization reaction so as to generate the blue light filtering material; and
and after the blue light filtering material is molded, stripping the blue light filtering material from the molding die.
In one embodiment of the present invention, the forming substrate comprises a thermal initiator, wherein the thermal initiator is selected from one or more of 2, 2' -azobisisobutyronitrile, azobisisoheptonitrile, and benzoyl peroxide.
In one embodiment of the present invention, the step of polymerizing the shaped substrate and the compound to form a blue light filtering material further comprises the steps of:
arranging the forming substrate and the compound in a forming die to prepare a mixed solution;
illuminating the mixed solution in the forming mold to enable the forming base material and the compound in the mixed solution to generate a polymerization reaction so as to generate the blue light filtering material; and
and after the blue light filtering material is molded, stripping the blue light filtering material from the molding die.
In one embodiment of the present invention, the shaped substrate comprises a photoinitiator, wherein the photoinitiator is selected from one or more of phenyl bis (2,4, 6-trimethylbenzoyl) -phosphine oxide and 2-hydroxy-2-methyl-1-phenyl-1-propanone.
In an embodiment of the invention, the blue light filtering material is prepared from the following raw materials in percentage by weight: 0.25% to 3% of said compound and 97% to 99.75% of said shaped substrate.
Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.
These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the claims.
Drawings
Fig. 1 is a schematic flow chart of a method for preparing a blue light filtering material according to a preferred embodiment of the invention.
Fig. 2 is a schematic flow chart of a mixing reaction step in the method for preparing the blue light filtering material according to the above preferred embodiment of the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
At present, the conventional blue light filtering device in the market blocks blue light by adding a substance with blue light filtering property into the substrate of the device. Specifically, the substance having the property of filtering blue light has the following structural formula (1):
however, such devices are prone to cause the substance with blue light filtering capability to fall off from the substrate of the device due to long-term use or storage environment, thereby reducing the blue light blocking capability of the device and even causing irreparable harm to the eyes of the user.
In order to solve the problems, the invention provides a blue light filtering material and a preparation method thereof. According to the preferred embodiment of the present invention, the blue light filtering material comprises a shaped substrate and a compound having blue light filtering properties. Since the forming substrate has an unsaturated bond (such as a carbon-carbon double bond, etc.), and the compound has a structural end of a carbon-carbon double bond, the unsaturated bond in the forming substrate can perform an addition reaction with the carbon-carbon double bond in the compound, so that the compound can perform a copolymerization reaction with the forming substrate to form the blue light filtering material.
Specifically, the compound has the following structural general formula (2):
in said formula 2, R1 is
(hereinafter referred to as "group I"), n is an integer of 1 to 20; r2 is hydrogen or
(hereinafter referred to as group II); r3 is hydrogen radical or methyl.
Preferably, the chemical structural formula of the compound used for the reaction includes one or more of the following compounds J1 to J5, specifically as follows:
compound J1:
in the general structural formula (2), R1 is a group I, n is 1, R2 is a group II, and R3 is methyl, then the compound J1 has the following structural formula 1-1:
compound J2:
in the general structural formula (2), R1 is a group I, n is 1, R2 is a hydrogen group, and R3 is a methyl group, the compound J2 has the following structural formula 1-2:
compound J3:
in the general structural formula (2), R1 is a group I, n is 1, R2 is a group II, and R3 is a hydrogen group, the compound J3 has the following structural formula 1-3:
compound J4:
in the above general structural formula (2), R1 is a group I, n is 1, R2 is a hydrogen group, and R3 is a hydrogen group, the compound J4 has the following structural formula 1-4:
compound J5:
in the above general structural formula (2), R1 is a group I, n is 1, R2 is a group II, R3 is a methyl group, wherein R3 in R2 is a hydrogen group, the compound J5 has the following structural formulas 1 to 5:
it is understood that the chemical structural formula of the compound with blue light filtering performance can be any one of the compounds J1-J5; other compounds satisfying the above general structural formula (2) can be used, and are not described in detail in the present invention.
It is worth mentioning that the shaped substrate in the blue light filtering material has an unsaturated bond, such as a carbon-carbon double bond, etc., so that the unsaturated bond of the shaped substrate can be copolymerized with the carbon-carbon double bond of the compound having blue light filtering property to increase the bonding strength between the shaped substrate and the compound having blue light filtering property, thereby firmly fixing the compound having blue light filtering property on the shaped substrate.
Preferably, the forming substrate comprises a hydrophilic substance and an initiator.
Specifically, the hydrophilic substance may be implemented as, but not limited to, one or more of 2-Hydroxyethyl methacrylate (HEMA), 2-methylpropenoic acid (MAA), Acrylic Acid (AA), N-Vinyl-2-pyrrolidone (N-Vinyl-2-pyrrolidone, NVP), N-dimethylacrylamide (N, N-dimethylacrylamide, DMAA), Glycidyl Methacrylate (GMA), diethylaminoethyl methacrylate (2- (Dimethylamino) ethyl methacrylate, DEAEMA), or other equivalent compounds having the same technical characteristics.
The initiator is preferably embodied as a thermal initiator or a photoinitiator. It is understood that the thermal initiator, when heated, is capable of initiating a chemical reaction between the shaped substrate and the compound having blue light filtering properties; the photoinitiator can initiate chemical reaction between the forming substrate and the compound with the blue light filtering property under the condition of illumination.
More specifically, the thermal initiator may be implemented, but not limited to, as one or more of 2, 2' -Azobisisobutyronitrile (AIBN), Azobisisoheptonitrile (ADVN), Benzoyl Peroxide (BPO) or other equivalent compounds having the same technical characteristics; the photoinitiator may be embodied as, but is not limited to, one or more of phenylbis (2,4, 6-trimethylbenzoyl) -phosphine oxide (trade name: Irgacure 819), 2-hydroxy-2-methyl-1-phenyl-1-propanone (trade name: Darocur 1173), or other equivalent compounds having the same technical characteristics.
More preferably, the shaped substrate further comprises a cross-linking agent.
In particular, the cross-linking agent may be implemented as, but not limited to, one or more of Ethylene Glycol Dimethacrylate (EGDMA), triethylene glycol dimethacrylate (TrEGDMA), tetraethylene glycol dimethacrylate (TEGDMA), polyethylene glycol dimethacrylate (PEGDMA), propylene-terminated ethylene oxide dimethylsiloxane-ethylene oxide ABA block copolymer (DBE-U22), Trimethylolpropane trimethacrylate (TMPTMA), or other equivalent compounds having the same technical characteristics.
It is worth mentioning that in some other embodiments of the present invention, the forming substrate further includes a non-hydrophilic substance, and the non-hydrophilic substance is used to replace the hydrophilic substance, so as to achieve the purpose of preparing the blue light filtering material.
Specifically, the non-hydrophilic substance may be implemented as, but not limited to, one or more of (3-methacryloxy-2-hydroxypropoxy) propyl bis (trimethylsiloxy) Methyl (Methyl di (trimethylsiloxy) propyl methacrylate, SIGMMA), methacryloxypropyl TRIS (trimethylsiloxy) silane (3- (methacryloxy) -propyl TRIS (trimethylsiloxy) -silane, TRIS), Polydimethylsiloxane (PDMS), or other equivalent compounds having the same technical characteristics. It is to be understood that the non-hydrophilic species each comprise a silicon group.
It is noted that the hydrophilic substance and the non-hydrophilic substance may be included in the forming substrate at the same time, so as to achieve the same effect of preparing the blue light filtering material.
According to the preferred embodiment of the invention, the raw materials for preparing the blue light filtering material comprise the following components in percentage by weight: the compound is 0.25-3%, and the forming base material is 97-99.75%.
Referring to fig. 1 and 2 of the drawings, a method of preparing a blue light filtering material according to a preferred embodiment of the present invention is shown. As shown in fig. 1, the preparation method of the blue light filtering material comprises the following steps:
s1: preparing a shaped substrate and a compound having blue light filtering properties; and
s2: polymerizing the shaped substrate and the compound to produce a blue light filtering material.
Wherein the compound used in the reaction has the following general structural formula:
wherein R1 is
n is an integer of 1 to 20; r2 is hydrogen or
R3 is hydrogen radical or methyl.
According to the preferred embodiment of the present invention, as shown in fig. 2, the step S2 further includes the steps of:
disposing the forming substrate and the compound in a forming mold to prepare a mixed solution;
heating or illuminating the mixed solution in the forming mold to enable the forming base material and the compound in the mixed solution to generate a polymerization reaction so as to generate the blue light filtering material; and
and after the blue light filtering material is molded, stripping the blue light filtering material from the molding die.
It is noted that the shape and structure of the forming mold are designed according to the shape and structure of the final product, such as a sheet structure, a film structure, etc., so that the blue light filtering material has a specific structure of a sheet structure or a film structure, etc.
Preferably, before the step S2, the method further includes the steps of: filtering out solid impurities in the shaped substrate and the compound. In particular, when preparing the shaped substrate and the compound, some solid impurities may be mixed, thereby directly affecting the quality of the blue light filtering material, and therefore, the shaped substrate and the compound need to be filtered before the copolymerization reaction of the shaped substrate and the compound occurs, so as to remove or reduce the solid impurities in the shaped substrate and the compound, thereby ensuring that the blue light filtering material has high quality.
For example, firstly, 0.25 to 3.0g of compound and 97 to 99.75g of forming base material are weighed and put into a forming mold to be uniformly mixed so as to prepare a mixed solution; then, heating the mixed solution in the forming mold to enable the compound and the forming base material to generate copolymerization reaction so as to generate a blue light filtering material; after the blue light filtering material is molded, the blue light filtering material is taken out of the molding die so as to obtain the blue light filtering material with a specific shape. It should be understood that the weighed weights of the raw materials for preparing the blue light filtering material are only exemplary, and can be scaled up or down according to the actual situation, and are not described in detail in the present invention.
It is worth mentioning that, since the forming substrate in the blue light filtering material has an unsaturated bond, such as a carbon-carbon double bond, etc., the unsaturated bond of the forming substrate can be copolymerized with the carbon-carbon double bond of the compound having blue light filtering property, so as to increase the bonding strength between the forming substrate and the compound having blue light filtering property, thereby firmly fixing the compound having blue light filtering property on the forming substrate.
The present invention will be further described below with reference to specific examples. In order to fully embody the more stable blue light filtering performance of the blue light filtering material provided by the invention compared with the blue light filtering material in the prior art, the compound with the structural formula (1) is selected as a comparison compound in the following examples, the comparison compound and the compounds J1-J5 of the invention are respectively prepared into the blue light filtering material corresponding to the comparison compound under the same conditions, and then the various performances of the blue light filtering materials prepared by the comparison compound and the compounds J1-J5 are compared and evaluated based on the same test conditions and evaluation standards.
Firstly, preparing corresponding blue light filtering materials based on different raw materials and raw material weights:
specifically, the comparative compound has the structural formula:
the structural formula of the compound J1 is as follows:
the structural formula of the compound J2 is as follows:
the structural formula of the compound J3 is as follows:
the structural formula of the compound J4 is as follows:
the structural formula of the compound J5 is as follows:
more specifically, the preparation procedures in examples 1 to 29 were:
first, the raw materials (such as comparative compounds, compounds J1 to J5, and forming base material) required for each example were prepared according to the weight ratio table of the raw materials shown in table 1 below, for example, in example 1: preparing 0.5% by weight of the comparative compound, 98.425% by weight of 2-hydroxyethyl methacrylate (HEMA), 0.650% by weight of methacrylic acid (MAA), 0.200% by weight of Ethylene Glycol Dimethacrylate (EGDMA) and 0.225% by weight of 2, 2' -Azobisisobutyronitrile (AIBN); in example 6: prepared were the compound J1 at 0.5% by weight, HEMA at 98.425% by weight, MAA at 0.650% by weight, EGDMA at 0.200% by weight, and AIBN at 0.225% by weight.
Then, filtering and putting the prepared raw materials into a forming die, and uniformly mixing the raw materials.
Finally, the forming die is heated or illuminated to enable the various raw materials to carry out copolymerization reaction, and after the reaction is finished, the manufactured blue light filtering material is stripped from the forming die for subsequent analytical experiments.
Table 1: weight ratio of each raw material in examples 1 to 29
The preparation process in examples 30 to 58 was:
first, the raw materials (such as comparative compounds, compounds J1 to J5, and forming base material) required for each example were prepared according to the weight ratio table of the raw materials shown in table 2 below, for example, in example 30: preparing 0.5% by weight of this comparative compound, (3-methacryloxy-2-hydroxypropoxy) propylbis (trimethylsiloxy) methyl (SiGMA for short), 11.70% by weight of 2-hydroxyethyl methacrylate (HEMA for short), 42.10% by weight of N-vinylpyrrolidone (NVP for short), 7.20% by weight of a propylene-terminated ethylene oxide dimethylsiloxane-ethylene oxide ABA block copolymer (DBE-U22 for short), and 1.00% by weight of 2, 2' -azobisisobutyronitrile (AIBN for short); in example 35: 0.5% by weight of the compound J1, 37.50% by weight of SiGMA, 11.70% by weight of HEMA, 42.10% by weight of NVP, 7.20% by weight of DBE-U22 and 1.00% by weight of AIBN were prepared.
Then, filtering and putting the prepared raw materials into a forming die, and uniformly mixing the raw materials.
And finally, heating or illuminating the forming die to enable the various raw materials to carry out copolymerization reaction, and stripping the prepared blue light filtering material from the forming die after the reaction is finished so as to analyze the blue light blocking capability and stability of the blue light filtering material.
Secondly, analyzing the blue light filtering capacity of the blue light filtering material:
specifically, the blue light blocking capability of the blue light filtering material manufactured in each example is tested and analyzed, and the specific process is as follows: the blue light transmittance of the blue light filtering materials prepared in the above examples 1 to 58 in the wavelength range of 380nm to 460nm is measured by an ultraviolet-visible spectrophotometer (for example, a spectrophotometer of Bio Mate 3S), and the blue light blocking filter of the blue light filtering material is calculated according to the obtained blue light transmittance, wherein the sum of the blue light transmittance and the blue light blocking ratio is 100%.
More specifically, it is known through testing and analysis that:
the analysis results of the blue light transmittance and the blue light blocking ratio of the blue light filtering materials manufactured in the above examples 1 to 29 are shown in table 3 below.
The analysis results of the blue light transmittance and the blue light blocking ratio of the blue light filtering materials prepared in the above examples 30 to 58 are shown in table 4 below.
Table 2: weight ratio of each raw material in examples 30 to 58
Table 3: analysis results of blue light-filtering capability of the blue light-filtering materials fabricated in examples 1 to 29
Table 4: analysis results of blue light-filtering capability of the blue light-filtering materials fabricated in examples 30 to 58
Thirdly, analyzing the stability and the persistence of the blue light filtering capability of the blue light filtering material
Specifically, the blue light filtering materials manufactured in examples 1 to 58 were placed in a simulated storage environment, and then the simulated storage environment was tested at intervals of a predetermined time to measure the blue light transmittance of the simulated storage environment, so as to observe and analyze whether or not the compounds having the blue light filtering property (such as the comparative compound or the compounds J1 to J5) were separated from the blue light filtering material, and the degree thereof.
More specifically, first, the blue light filtering material prepared in the above examples 1 to 29 is soaked in a poloxamer aqueous solution to simulate a storage environment of the blue light filtering material, and the blue light filtering material prepared in the above examples 30 to 58 is soaked in a 75% alcohol aqueous solution to simulate another storage environment of the blue light filtering material; next, after the blue light filtering material manufactured in each example was soaked for 0 hour, 4 hours, 8 hours, 12 hours, and 24 hours, blue light transmittance of the poloxamer aqueous solution and the 75% alcohol aqueous solution in a wavelength range of 380nm to 460nm was measured using an ultraviolet-visible spectrophotometer (e.g., a spectrophotometer model Bio Mate3S, etc.), respectively, to observe a phenomenon and a degree of separation of a compound having a blue light filtering property (such as the comparative compound or the compounds J1 to J5) from the blue light filtering material, thereby analyzing stability and durability of the blue light filtering ability of the blue light filtering material.
The test shows that: after soaking the blue light filtering materials prepared in the above examples 1 to 29 for 0 hour, 4 hours, 8 hours, 12 hours, and 24 hours, the blue light transmittance of the poloxamer aqueous solution is as shown in table 5 below; the blue light transmittance of the 75% alcohol aqueous solution after soaking the blue light filtering materials prepared in the above examples 30 to 58 for 0 hour, 4 hours, 8 hours, 12 hours, and 24 hours is shown in table 6 below.
Table 5: measurement results of blue light transmittance of the poloxamer aqueous solution
Table 6: measurement result of blue light transmittance of the 75% alcohol aqueous solution
Fourthly, analyzing results:
from the table 3 and the table 4, it can be found that, under the same conditions, the more the amount of the compound (e.g., the compounds J1 to J5) having the general structural formula (2) added to the blue light filtering material (e.g., the blue light filtering materials prepared in examples 5 to 29 and 34 to 58), the greater the blue light blocking rate of the blue light filtering material, that is, the stronger the blue light filtering capability of the blue light filtering material.
It is to be noted that, although each of the compounds J1 to J5 and each of the comparative compounds have a chemical structure for blocking blue light, i.e., a chemical structure composed of two benzene rings and a structure between the two benzene rings, the molecular weight of the compounds J1 to J5 is larger than that of the comparative compounds. Therefore, under the condition of adding the same mass of the compounds J1-J5 and the comparative compound, the ratio of the chemical structures capable of blocking blue light in the compounds J1-J5 is smaller than that of the chemical structures capable of blocking blue light in the comparative compound, so that the blue light blocking rate of the blue light filtering material prepared by adding the same mass of the compounds J1-J5 is smaller than that of the blue light filtering material prepared by adding the same mass of the comparative compound.
Furthermore, it can be seen from the above tables 5 and 6 that, for the blue light-filtering material prepared in the same example, the longer the soaking time, the lower the blue light transmittance of the solution (e.g., the poloxamer aqueous solution or 75% alcohol aqueous solution) (i.e., the blue light blocking rate of the solution), that is, the more the compound with blue light-blocking property (e.g., the compounds J1-J5 or the comparative compound) is contained in the solution, i.e., the more the compound with blue light-blocking property (e.g., the compounds J1-J5 or the comparative compound) is dropped from the blue light-filtering material.
However, for the blue-light-filtering materials manufactured in the different examples, although it is understood from the tables 3 and 4 that the initial blue-light-blocking ability of the blue-light-filtering materials manufactured using the comparative compounds (e.g., the examples 1 to 4 and the examples 30 to 33) is superior to that of the blue-light-filtering materials manufactured using the compounds J1 to J5 (e.g., the examples 5 to 29 and the examples 34 to 58), it is understood from the tables 5 and 6 that the blue-light-blocking ability of the blue-light-filtering materials manufactured using the comparative compounds shows a large decline during long-term use or storage (e.g., in the simulated storage environment described above), while the blue-light-blocking ability of the blue-light-filtering materials manufactured using the compounds J1 to J5 can be continuously and stably maintained at a high level, that is, the blue light-filtering material made using the compounds J1 to J5 is significantly superior to the blue light-filtering material made using the comparative compound in the persistence and stability of the blue light-filtering ability.
In summary, since the comparative compound cannot be chemically bonded to the forming substrate (i.e. the comparative compound cannot be copolymerized with the unsaturated bond in the forming substrate because it does not have the structural end of the carbon-carbon double bond), the compound having the general structural formula (2) (e.g. the compounds J1 to J5) used in the blue light filtering material and the preparation method thereof provided by the present invention has the structural end of the carbon-carbon double bond, so that the compound having the general structural formula (2) can be polymerized with the unsaturated bond (e.g. the carbon-carbon double bond, etc.) in the forming substrate, so as to greatly improve the bonding force between the compound having the blue light filtering property and the substrate, and thus the compound having the blue light filtering property (e.g. the compounds J1 to J5) can be stably retained on the blue light filtering material, and the persistence and stability of the blue light filtering material for filtering blue light can be effectively improved.
According to another aspect of the present invention, since the compound with blue light filtering capability in the blue light filtering material provided by the present invention can be firmly combined with the forming substrate of the blue light filtering material, the blue light filtering material provided by the present invention not only has a high blue light filtering capability, but also can effectively prevent the compound from being detached from the forming substrate of the blue light filtering material, so as to continuously maintain the blue light filtering capability of the blue light filtering material at a high level, the blue light filtering material provided by the present invention has a strong market competitive advantage, so that the blue light filtering material and the preparation method thereof are very easy to be widely applied and popularized, for example, the blue light filtering material can be used for manufacturing products or devices such as polarizing films, brightness enhancement films, diffusion films, display films, protective films, explosion-proof films, liquid crystal display glasses, and the like, the blue light filtering device not only can enable the products or devices to have stable blue light filtering capability, but also can greatly prolong the service life of the products or devices so as to reduce the use cost of users.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (20)
1. A blue light filtering material, comprising:
at least one shaped substrate, wherein the shaped substrate has an unsaturated bond therein; and
at least one compound having blue light filtering properties, wherein the compound has a structure end with a carbon-carbon double bond, and the unsaturated bond of the forming substrate and the structure end with the carbon-carbon double bond of the compound have addition reaction, so that the compound can have copolymerization reaction with the forming substrate, and the blue light filtering material is prepared, so that the bonding strength between the forming substrate and the compound is increased, and the compound is prevented from being separated from the forming substrate of the blue light filtering material, so that the blue light filtering capacity of the blue light filtering material is continuously maintained at a higher level;
wherein the compound has the following general structural formula:
wherein R is1Is composed of
n is an integer of 1 to 20; r2Is hydrogen radical or
R3Is hydrogen radical or methyl.
2. The blue light-filtering material of claim 1, wherein the compound is selected from
3. The blue light filtering material as claimed in claim 2, wherein the blue light filtering material is prepared from the following raw materials in percentage by weight: 0.25% to 3% of said compound and 97% to 99.75% of said shaped substrate.
4. The blue light filtering material of claim 1, wherein the blue light filtering material can be used to manufacture a polarizer film, a brightness enhancement film, a diffuser film, a filter film, a protective film, an explosion-proof film, a liquid crystal display, a contact lens or a pair of protective glasses.
5. The blue light-filtering material as claimed in any one of claims 1 to 4, wherein the shaping substrate comprises a hydrophilic substance and an initiator.
6. The blue light-filtering material of claim 5, wherein the hydrophilic substance is selected from one or more of 2-hydroxyethyl methacrylate, methacrylic acid, acrylic acid, N-vinyl-2-pyrrolidone, N-dimethylacrylamide, glycidyl methacrylate, and diethylaminoethyl methacrylate.
7. The blue light-filtering material as claimed in claim 5, wherein the initiator is a thermal initiator or a photoinitiator.
8. The blue light-filtering material as claimed in claim 7, wherein the thermal initiator is selected from one or more of 2, 2' -azobisisobutyronitrile, azobisisoheptonitrile, and benzoyl peroxide.
9. The blue light-filtering material of claim 7, wherein the photoinitiator is selected from one or more of phenyl bis (2,4, 6-trimethylbenzoyl) -phosphine oxide and 2-hydroxy-2-methyl-1-phenyl-1-propanone.
10. The blue light-filtering material of claim 5, wherein the shaped substrate further comprises a cross-linking agent.
11. The blue light-filtering material of claim 10, wherein the cross-linking agent is selected from one or more of ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, polyethylene glycol dimethacrylate, propylene-terminated ethylene oxide dimethylsiloxane-ethylene oxide ABA block copolymer, and trimethylolpropane trimethacrylate.
12. The blue light-filtering material as claimed in claim 10, wherein said shaped substrate further comprises a non-hydrophilic substance.
13. The blue light-filtering material of claim 12, wherein the non-hydrophilic substance is selected from one or more of (3-methacryloxy-2-hydroxypropoxy) propylbis (trimethylsiloxy) methyl, methacryloxypropyltris (trimethylsiloxy) silane, and polydimethylsiloxane.
14. The blue light-filtering material as claimed in any one of claims 1 to 4, wherein the shaping substrate comprises a non-hydrophilic substance and an initiator.
15. The preparation method of the blue light filtering material is characterized by comprising the following steps of:
preparing a shaped substrate and a compound having blue light filtering properties; and
polymerizing the forming substrate and the compound to form a blue light filtering material, wherein the unsaturated bond of the forming substrate and the structure end of the carbon-carbon double bond of the compound have addition reaction, so that the bonding strength between the forming substrate and the compound is increased, and the compound is prevented from being separated from the forming substrate of the blue light filtering material, so as to continuously keep the blue light filtering capability of the blue light filtering material at a higher level;
wherein the compound used in the reaction has the following general structural formula:
wherein R is1Is composed of
n is an integer of 1 to 20; r2Is hydrogen radical or
R3Is hydrogen radical or methyl.
16. The method of claim 15 wherein said step of polymerizing said shaped substrate and said compound to form a blue light filtering material further comprises the steps of:
arranging the forming substrate and the compound in a forming die to prepare a mixed solution;
heating the mixed solution in the forming mold to enable the forming base material and the compound in the mixed solution to generate a polymerization reaction so as to generate the blue light filtering material; and
and after the blue light filtering material is molded, stripping the blue light filtering material from the molding die.
17. The method of claim 16, wherein the shaped substrate comprises a thermal initiator, wherein the thermal initiator is selected from one or more of 2, 2' -azobisisobutyronitrile, azobisisoheptonitrile, and benzoyl peroxide.
18. The method of claim 15 wherein said step of polymerizing said shaped substrate and said compound to form a blue light filtering material further comprises the steps of:
arranging the forming substrate and the compound in a forming die to prepare a mixed solution;
illuminating the mixed solution in the forming mold to enable the forming base material and the compound in the mixed solution to generate a polymerization reaction so as to generate the blue light filtering material; and
and after the blue light filtering material is molded, stripping the blue light filtering material from the molding die.
19. The method of claim 18, wherein the shaped substrate comprises a photoinitiator, wherein the photoinitiator is selected from one or more of phenyl bis (2,4, 6-trimethylbenzoyl) -phosphine oxide and 2-hydroxy-2-methyl-1-phenyl-1-propanone.
20. The method for preparing the blue light filtering material as claimed in any one of claims 15 to 19, wherein the blue light filtering material is prepared from the following raw materials in percentage by weight: 0.25% to 3% of said compound and 97% to 99.75% of said shaped substrate.
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| CN201810571976.2A CN110551247B (en) | 2018-06-04 | 2018-06-04 | Blue light filtering material and preparation method thereof |
| TW107140413A TWI698453B (en) | 2018-06-04 | 2018-11-14 | Anti-blue light material and preparation method thereof |
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| WO2023228054A1 (en) * | 2022-05-23 | 2023-11-30 | Alcon Inc. | Method for making hevl-filtering contact lenses |
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| WO2024106454A1 (en) * | 2022-11-16 | 2024-05-23 | 日産化学株式会社 | Resist underlayer film-forming composition containing curcumin derivative |
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| TW202003602A (en) | 2020-01-16 |
| TWI698453B (en) | 2020-07-11 |
| CN110551247A (en) | 2019-12-10 |
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