Preparation method of liquid for absorbing blue light of LED light source and low-blue-light LED lamp
阅读说明：本技术 一种吸收led光源蓝光的液体的制备方法及低蓝光led灯具 (Preparation method of liquid for absorbing blue light of LED light source and low-blue-light LED lamp ) 是由 严国生 于 2021-08-05 设计创作，主要内容包括：本发明公开了吸蓝光液体制备技术领域的一种吸收LED光源蓝光的液体,由以下按质量份数比的原料制备而成,包括：基体树脂：30～60份、乙氧化双酚A二甲基丙烯酸酯：15～20份、聚乙二醇二甲基丙烯酸酯：8～15份、三羟甲基丙烷三甲基丙烯酸酯：6～12份、光稳定剂：2～7份、抗氧化剂：1～3份、紫外线吸收剂：1.5～4.5份、聚甲基丙烯酸甲酯：0.5～1份；本发明本发明制备的紫外-蓝光吸收材料产品具有良好的吸收紫外光(300-400nm)和蓝光(400-475nm)的功能；碳点合成简单、成本低且对环境友好,光学性质稳定,表面富含有机基团,能很好地分散在聚甲基丙烯酸甲酯中,减少甲基丙烯酸甲酯聚合反应过程中引发剂的用量,并且还能吸收一定范围的蓝光。(The invention discloses a liquid for absorbing blue light of an LED light source, belonging to the technical field of preparation of blue light absorbing liquid, which is prepared from the following raw materials in parts by mass: matrix resin: 30-60 parts of ethoxylated bisphenol A dimethacrylate: 15-20 parts of polyethylene glycol dimethacrylate: 8-15 parts of trimethylolpropane trimethacrylate: 6-12 parts of a light stabilizer: 2-7 parts of antioxidant: 1-3 parts of an ultraviolet absorber: 1.5-4.5 parts of polymethyl methacrylate: 0.5-1 part; the ultraviolet-blue light absorbing material product prepared by the invention has good functions of absorbing ultraviolet light (300-; the carbon dots are simple to synthesize, low in cost, environment-friendly, stable in optical property and rich in organic groups on the surface, can be well dispersed in the polymethyl methacrylate, reduces the using amount of an initiator in the polymerization reaction process of the methyl methacrylate, and can absorb blue light in a certain range.)
1. The liquid for absorbing the blue light of the LED light source is characterized by being prepared from the following raw materials in parts by mass: matrix resin: 30-60 parts of ethoxylated bisphenol A dimethacrylate: 15-20 parts of polyethylene glycol dimethacrylate: 8-15 parts of trimethylolpropane trimethacrylate: 6-12 parts of a light stabilizer: 2-7 parts of antioxidant: 1-3 parts of an ultraviolet absorber: 1.5-4.5 parts of polymethyl methacrylate: 0.5-1 part of initiator: 0.2-0.4 part of a blue light absorbent: 1-4 parts.
2. The liquid for absorbing blue light of an LED light source as claimed in claim 1, wherein: the matrix resin is one of hydroxyl-containing alkyd resin, high imino butylated melamine formaldehyde resin, acrylic resin and styrene.
3. The liquid for absorbing blue light of an LED light source as claimed in claim 1, wherein: the light stabilizer is one of light stabilizer 944, light stabilizer 292, light stabilizer 770 and light stabilizer 3808.
4. The liquid for absorbing blue light of an LED light source as claimed in claim 1, wherein:
the antioxidant is one of antioxidant 168, antioxidant 1010, antioxidant 1076 and antioxidant 264;
the ultraviolet absorbent is one of UV-329, UV-328, UV-327, UV-326, UV-234 and UV-144;
the initiator is one of tert-butyl peroxybenzoate or dicumyl peroxide.
5. A method for preparing the liquid for absorbing the blue light of the LED light source according to any one of claims 1 to 4, which comprises the following steps:
s1, dissolving hydroxyacetophenone and alkyl halide in a solvent, and fully reacting to obtain alkoxy acetophenone for later use;
s2, weighing ethylenediaminetetraacetic acid and ethanolamine with the molar ratio of 1:3, and adding water for dissolving to obtain a mixture;
s3, carrying out oil bath reflux reaction on the mixture at 200 ℃ for 10h, then centrifuging for 3 times, wherein the rotating speed of each centrifugation is 8000rpm, the centrifuging time is 8 minutes, removing insoluble precipitate, and keeping supernatant;
s4, dissolving alkoxy acetophenone, dimethyl isophthalate or dimethyl terephthalate and a catalyst in a solvent, and performing condensation reaction with supernatant to obtain a 3,3' - (1, 3-phenylene) bis [1- (alkoxy phenyl) -1, 3-propanedione ] compound;
and S5, performing suction filtration on the compound in the S4 by adopting a sand core funnel and an aqueous phase filter membrane with the aperture of 0.22 mu m, and removing large-particle-size molecules in the solution to obtain the blue light absorption liquid.
6. The method for preparing the liquid for absorbing the blue light of the LED light source according to claim 5, wherein the method comprises the following steps: the alkyl halide in the step S1 is one of bromopropane, bromobutane, bromopentane, bromohexane, benzyl chloride and benzyl bromide.
7. The method for preparing the liquid for absorbing the blue light of the LED light source according to claim 5, wherein the method comprises the following steps: the molar ratio of the alkoxy acetophenone, the dimethyl isophthalate or the dimethyl terephthalate and the catalyst in the step S4 is (1.7-5): 1: (1.7-6).
8. An absorbing LED low blue light LED lamp according to any one of claims 1-7, wherein: the LED lamp is characterized by comprising a shell (1), wherein a lamp tube (2) is arranged in an inner cavity of the shell (1), mounting seats (3) are mounted on two sides of the lamp tube (2), the mounting seats (3) are fixedly connected with the shell (1), an LED lamp strip (4) is mounted at the top of the inner cavity of the lamp tube (2), a liquid cavity (5) is formed in the bottom of the inner cavity of the LED lamp strip (4), and blue light absorption liquid (6) obtained in claim 5 is injected into the inner cavity of the liquid cavity (5).
Technical Field
The invention relates to the technical field of preparation of blue light absorption liquid, in particular to a preparation method of liquid for absorbing blue light of an LED light source and a low-blue-light LED lamp.
Background
A Light Emitting Diode (LED) is a solid semiconductor device that can directly convert electrical energy into light energy. For a white light LED light emitting mechanism, it is currently most common to use blue light emitted from a blue light chip to excite phosphor powder to emit yellow-green light, and then mix the yellow-green light with the remaining blue light of the chip to form white light. Such a light emitting mechanism has many advantages such as high luminous efficiency and environmental protection, but also hides safety issues such as blue light hazard. A typical LED with a blue light chip exciting fluorescent powder to generate white light has a blue light peak below 500nm of a spectrum, and generally has equivalent power intensity at 445-455 nm. For a high correlated color temperature light source, the blue light wavelength is shorter or the peak value of the blue light is higher, the radiation dose of the blue light is higher, and the radiation dose of the blue light is higher, particularly the blue light with the peak wavelength between 435 nm and 440nm is easy to generate certain harm to human eyes;
if the electronic products are used for a long time by the low-age people in the growth and development period, the damage degree is larger, and even blindness eye diseases are induced, so a preparation method of liquid for absorbing blue light of an LED light source and a low-blue light LED lamp are provided.
Disclosure of Invention
The invention aims to provide a preparation method of liquid for absorbing blue light of an LED light source and a low-blue-light LED lamp, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the liquid for absorbing the blue light of the LED light source is prepared from the following raw materials in parts by mass: matrix resin: 30-60 parts of ethoxylated bisphenol A dimethacrylate: 15-20 parts of polyethylene glycol dimethacrylate: 8-15 parts of trimethylolpropane trimethacrylate: 6-12 parts of a light stabilizer: 2-7 parts of antioxidant: 1-3 parts of an ultraviolet absorber: 1.5-4.5 parts of polymethyl methacrylate: 0.5-1 part of initiator: 0.2-0.4 part of a blue light absorbent: 1-4 parts.
Preferably, the matrix resin is one of hydroxyl-containing alkyd resin, high imino butylated melamine formaldehyde resin, acrylic resin and styrene.
Preferably, the light stabilizer is one of light stabilizer 944, light stabilizer 292, light stabilizer 770 and light stabilizer 3808.
Preferably, the antioxidant is one of antioxidant 168, antioxidant 1010, antioxidant 1076 and antioxidant 264;
the ultraviolet absorbent is one of UV-329, UV-328, UV-327, UV-326, UV-234 and UV-144;
the initiator is one of tert-butyl peroxybenzoate or dicumyl peroxide.
The invention also provides a preparation method of the liquid for absorbing the blue light of the LED light source, which comprises the following steps:
s1, dissolving hydroxyacetophenone and alkyl halide in a solvent, and fully reacting to obtain alkoxy acetophenone for later use;
s2, weighing ethylenediaminetetraacetic acid and ethanolamine with the molar ratio of 1:3, and adding water for dissolving to obtain a mixture;
s3, carrying out oil bath reflux reaction on the mixture at 200 ℃ for 10h, then centrifuging for 3 times, wherein the rotating speed of each centrifugation is 8000rpm, the centrifuging time is 8 minutes, removing insoluble precipitate, and keeping supernatant;
s4, dissolving alkoxy acetophenone, dimethyl isophthalate or dimethyl terephthalate and a catalyst in a solvent, and performing condensation reaction with supernatant to obtain a 3,3' - (1, 3-phenylene) bis [1- (alkoxy phenyl) -1, 3-propanedione ] compound;
and S5, performing suction filtration on the compound in the S4 by adopting a sand core funnel and an aqueous phase filter membrane with the aperture of 0.22 mu m, and removing large-particle-size molecules in the solution to obtain the blue light absorption liquid.
Preferably, the alkyl halide in step S1 is one of bromopropane, bromobutane, bromopentane, bromohexane, benzyl chloride and benzyl bromide.
Preferably, the molar ratio of the alkoxy acetophenone, the dimethyl isophthalate or the dimethyl terephthalate and the catalyst in the step S4 is (1.7-5): 1: (1.7-6).
The invention also provides an LED lamp absorbing low blue light of an LED, which comprises a shell, wherein a lamp tube is arranged in the inner cavity of the shell, mounting seats are respectively arranged on two sides of the lamp tube, the mounting seats are fixedly connected with the shell, an LED lamp strip is arranged on the top of the inner cavity of the lamp tube, a liquid cavity is formed in the bottom of the inner cavity of the LED lamp strip, and blue light absorbing liquid obtained in the claim is injected into the inner cavity of the liquid cavity.
Compared with the prior art, the invention has the beneficial effects that:
the ultraviolet-blue light absorbing material product prepared by the invention has good functions of absorbing ultraviolet light (300-; the carbon dots are simple to synthesize, low in cost, environment-friendly, stable in optical property and rich in organic groups on the surface, can be well dispersed in the polymethyl methacrylate, reduces the using amount of an initiator in the polymerization reaction process of the methyl methacrylate, and can absorb blue light in a certain range so as to reduce the damage of lamplight or sunlight to a human body; meanwhile, the polymethyl methacrylate has good light transmission, the blue light absorbing material can ensure the transmission of other light while removing harmful light, normal light use is not influenced, and the blue light absorbing liquid is easy to manufacture and use.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the lamp tube of the present invention;
FIG. 3 is a schematic view of the preparation process of the present invention.
In the figure: 1. a housing; 2. a lamp tube; 3. a mounting seat; 4. an LED light strip; 5. a liquid chamber; 6. blue light absorbing liquid.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example one
Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a technical solution:
the liquid for absorbing the blue light of the LED light source is prepared from the following raw materials in parts by mass: matrix resin: 60 parts of ethoxylated bisphenol A dimethacrylate: 20 parts of polyethylene glycol dimethacrylate: 15 parts of trimethylolpropane trimethacrylate: 12 parts of light stabilizer: 7 parts of antioxidant: 3 parts of ultraviolet absorber: 4.5 parts of polymethyl methacrylate: 1 part of initiator: 0.4 part of blue light absorber: 4 parts.
Referring to fig. 1, the matrix resin is one of hydroxyl-containing alkyd resin, high imino butylated melamine formaldehyde resin, acrylic resin, and styrene;
referring to fig. 1, the light stabilizer is one of light stabilizer 944, light stabilizer 292, light stabilizer 770, and light stabilizer 3808;
referring to fig. 1, the antioxidant is one of antioxidant 168, antioxidant 1010, antioxidant 1076, and antioxidant 264;
the ultraviolet absorbent is one of UV-329, UV-328, UV-327, UV-326, UV-234 and UV-144;
the initiator is one of tert-butyl peroxybenzoate or dicumyl peroxide;
the invention also provides a preparation method of the liquid for absorbing the blue light of the LED light source, which comprises the following steps:
s1, dissolving hydroxyacetophenone and alkyl halide in a solvent, and fully reacting to obtain alkoxy acetophenone for later use;
s2, weighing ethylenediaminetetraacetic acid and ethanolamine with the molar ratio of 1:3, and adding water for dissolving to obtain a mixture;
s3, carrying out oil bath reflux reaction on the mixture at 200 ℃ for 10h, then centrifuging for 3 times, wherein the rotating speed of each centrifugation is 8000rpm, the centrifuging time is 8 minutes, removing insoluble precipitate, and keeping supernatant;
s4, dissolving alkoxy acetophenone, dimethyl isophthalate or dimethyl terephthalate and a catalyst in a solvent, and performing condensation reaction with supernatant to obtain a 3,3' - (1, 3-phenylene) bis [1- (alkoxy phenyl) -1, 3-propanedione ] compound;
and S5, performing suction filtration on the compound in the S4 by adopting a sand core funnel and an aqueous phase filter membrane with the aperture of 0.22 mu m, and removing large-particle-size molecules in the solution to obtain the blue light absorption liquid.
Referring to fig. 1, the alkyl halide in step S1 is one of bromopropane, bromobutane, bromopentane, bromohexane, benzyl chloride and benzyl bromide;
referring to fig. 1, the molar ratio of the alkoxyacetophenone, the dimethyl isophthalate or the dimethyl terephthalate, and the catalyst in the step S4 is (1.7-5): 1: (1.7-6);
the invention also provides an LED lamp absorbing low blue light of an LED, which comprises a shell 1, wherein a lamp tube 2 is arranged in the inner cavity of the shell 1, mounting seats 3 are respectively arranged on two sides of the lamp tube 2, the mounting seats 3 are fixedly connected with the shell 1, an LED lamp strip 4 is arranged on the top of the inner cavity of the lamp tube 2, a liquid cavity 5 is arranged at the bottom of the inner cavity of the LED lamp strip 4, and the blue light absorbing liquid 6 obtained in the claim 5 is injected into the inner cavity of the liquid cavity 5.
The working principle is as follows: dissolving hydroxyacetophenone and alkyl halide in a solvent, and fully reacting to obtain alkoxy acetophenone for later use; weighing ethylenediamine tetraacetic acid and ethanolamine with the molar ratio of 1:3, and adding water for dissolving to obtain a mixture; performing oil bath reflux reaction on the mixture at 200 ℃ for 10h, then centrifuging for 3 times, wherein the rotating speed of each centrifugation is 8000rpm, the centrifuging time is 8 minutes, removing insoluble precipitate, and keeping supernatant; dissolving alkoxy acetophenone, dimethyl isophthalate or dimethyl terephthalate and a catalyst in a solvent, and carrying out condensation reaction on the mixture and supernatant liquor to obtain a 3,3' - (1, 3-phenylene) bis [1- (alkoxy phenyl) -1, 3-propanedione ] compound; and (3) carrying out suction filtration on the compound in the S4 by adopting a sand core funnel and an aqueous phase filter membrane with the aperture of 0.22 mu m, and removing large-particle-size molecules in the solution to obtain the blue light absorption solution.
Example two
Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a technical solution:
the liquid for absorbing the blue light of the LED light source is prepared from the following raw materials in parts by mass: matrix resin: 30 parts of ethoxylated bisphenol A dimethacrylate: 15 parts of polyethylene glycol dimethacrylate: 8 parts of trimethylolpropane trimethacrylate: 6 parts of light stabilizer: 2 parts of antioxidant: 1 part of ultraviolet absorbent: 1.5 parts of polymethyl methacrylate: 0.5 part of initiator: 0.2 part of blue light absorber: 1 part.
Referring to fig. 1, the matrix resin is one of hydroxyl-containing alkyd resin, high imino butylated melamine formaldehyde resin, acrylic resin, and styrene;
referring to fig. 1, the light stabilizer is one of light stabilizer 944, light stabilizer 292, light stabilizer 770, and light stabilizer 3808;
referring to fig. 1, the antioxidant is one of antioxidant 168, antioxidant 1010, antioxidant 1076, and antioxidant 264;
the ultraviolet absorbent is one of UV-329, UV-328, UV-327, UV-326, UV-234 and UV-144;
the initiator is one of tert-butyl peroxybenzoate or dicumyl peroxide;
the invention also provides a preparation method of the liquid for absorbing the blue light of the LED light source, which comprises the following steps:
s1, dissolving hydroxyacetophenone and alkyl halide in a solvent, and fully reacting to obtain alkoxy acetophenone for later use;
s2, weighing ethylenediaminetetraacetic acid and ethanolamine with the molar ratio of 1:3, and adding water for dissolving to obtain a mixture;
s3, carrying out oil bath reflux reaction on the mixture at 200 ℃ for 10h, then centrifuging for 3 times, wherein the rotating speed of each centrifugation is 8000rpm, the centrifuging time is 8 minutes, removing insoluble precipitate, and keeping supernatant;
s4, dissolving alkoxy acetophenone, dimethyl isophthalate or dimethyl terephthalate and a catalyst in a solvent, and performing condensation reaction with supernatant to obtain a 3,3' - (1, 3-phenylene) bis [1- (alkoxy phenyl) -1, 3-propanedione ] compound;
and S5, performing suction filtration on the compound in the S4 by adopting a sand core funnel and an aqueous phase filter membrane with the aperture of 0.22 mu m, and removing large-particle-size molecules in the solution to obtain the blue light absorption liquid.
Referring to fig. 1, the alkyl halide in step S1 is one of bromopropane, bromobutane, bromopentane, bromohexane, benzyl chloride and benzyl bromide;
referring to fig. 1, the molar ratio of the alkoxyacetophenone, the dimethyl isophthalate or the dimethyl terephthalate, and the catalyst in the step S4 is (1.7-5): 1: (1.7-6);
the invention also provides an LED lamp absorbing low blue light of an LED, which comprises a shell 1, wherein a lamp tube 2 is arranged in the inner cavity of the shell 1, mounting seats 3 are respectively arranged on two sides of the lamp tube 2, the mounting seats 3 are fixedly connected with the shell 1, an LED lamp strip 4 is arranged on the top of the inner cavity of the lamp tube 2, a liquid cavity 5 is arranged at the bottom of the inner cavity of the LED lamp strip 4, and the blue light absorbing liquid 6 obtained in the claim 5 is injected into the inner cavity of the liquid cavity 5.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.