CN112980125A - Rayleigh scattering PMMA plate and preparation method thereof - Google Patents
Rayleigh scattering PMMA plate and preparation method thereof Download PDFInfo
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- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2333/10—Homopolymers or copolymers of methacrylic acid esters
- C08J2333/12—Homopolymers or copolymers of methyl methacrylate
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- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/10—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to inorganic materials
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Abstract
The invention relates to a Rayleigh scattering PMMA plate, which comprises a transparent polymethyl methacrylate matrix and nano oxide particles uniformly distributed in the transparent polymethyl methacrylate matrix, wherein the diameter of the nano oxide particles is 5nm-100 nm. According to the Rayleigh scattering PMMA board provided by the invention, Rayleigh scattering is formed when a light source passes through the prepared PMMA board, so that the effects of diffusing blue sky and simulating sunlight are realized; the preparation method of the Rayleigh scattering PMMA plate provided by the invention is simple in process, easy to realize conditions, convenient for efficiently preparing the Rayleigh scattering PMMA plate and high in application value.
Description
Technical Field
The invention relates to the technical field of PMMA plates, in particular to a Rayleigh scattering PMMA plate and a preparation method thereof.
Background
Currently, there are studies that show people perform better and feel more comfortable in indoor environments with sunlight. The sunlight irradiation reduces the working pressure and negative influence of people, enhances the comfortable mood and the working efficiency, and improves the physical and mental health of people living indoors in the long run.
However, some indoor places cannot be irradiated by sunlight due to some factors, at this time, a virtual sun and a diffuse blue sky are created, and the solar sun and the diffuse blue sky can be installed in places such as offices, meeting rooms, underground malls and the like without natural environment light.
The sunlight system reported in patents CN111649271A, CN111623283A, CN110778927A can simulate the sun and diffuse blue sky. In these lamp systems, the key material used is a rayleigh scattering diffuser plate, but the patent does not describe the preparation of a rayleigh scattering diffuser plate.
Disclosure of Invention
The embodiment of the invention provides a Rayleigh scattering PMMA plate and a preparation method thereof, which aim to solve part of problems in the background technology.
The embodiment of the invention provides a Rayleigh scattering PMMA plate which comprises a transparent polymethyl methacrylate matrix and nano oxide particles uniformly distributed in the transparent polymethyl methacrylate matrix, wherein the diameter of the nano oxide particles is 5nm-100 nm.
Further, the nano oxide particles comprise silicon dioxide, titanium dioxide, zinc oxide and aluminum oxide.
Further, the nano-oxide particles are modified by glycidyl methacrylate and grafted with an acrylate polymer.
The second aspect of the embodiment of the invention provides a preparation method of a rayleigh scattering PMMA plate, which comprises the following steps:
(1) modification treatment of nanoparticles: dissolving a certain mass of nano particles in a solvent N, N-dimethylformamide to prepare a mixed solution with the mass fraction of 2% -10%, adding a modifier, and performing ultrasonic dispersion for 1h, wherein the mass ratio of the nano particles to the modifier is 2-5:1, adding 1000ppm of stannous chloride, heating to 100-140 ℃, and stirring for 2h-3h to obtain modified nano oxide particles; after filtering, washing the modified nano oxide particles for a plurality of times by using N, N-dimethylformamide, carrying out vacuum filtration on the obtained product, and finally drying the product in an oven at 50 ℃ for 18-24 h;
(2) graft polymerization of nanoparticles: adding modified nano oxide particles into N, N-dimethylformamide serving as a solvent, carrying out ultrasonic dispersion for 1-3 h, adding an acrylate monomer, introducing nitrogen to exhaust air, adding azodiisobutyronitrile serving as an initiator, and stirring in a constant-temperature water bath at 50-80 ℃ under the protection of nitrogen to carry out graft polymerization; wherein the mass of the nano oxide particles accounts for 5-10% of the total mass of the acrylate monomer, and the mass of the initiator azodiisobutyronitrile accounts for 0.05-0.2% of the total weight of the acrylate monomer; after reacting for 1-3 h, pouring the viscous solution into methanol under stirring to precipitate a polymer, washing the polymer for multiple times by using the methanol, and finally drying the product in vacuum to constant weight;
(3) pre-polymerization of monomers: ultrasonically dispersing nano oxide particles subjected to graft polymerization in a methyl methacrylate monomer, adding an initiator azobisisobutyronitrile, stirring and heating to boil, maintaining the material in a boiling state, cooling after the system reaches a required viscosity, adding the initiator azobisisobutyronitrile and a release agent stearic acid when the material is cooled to room temperature, and uniformly stirring to obtain a pre-polymerization slurry;
(4) metering the pre-polymerized slurry liquid, filling the pre-polymerized slurry liquid into a silica glass mold, discharging gas, and clamping by using a clamp;
(5) placing the mold in a water bath, maintaining the temperature of the water bath at 40-60 ℃, and reacting for 2-8 h until the materials in the mold are completely hardened; and then placing the mould into a drying room, further curing for 1-3 h at the high temperature of 90-120 ℃, naturally cooling to room temperature, and removing the mould to obtain the Rayleigh scattering PMMA plate.
Further, the modifier is glycidyl methacrylate, glycidyl acrylate and allyl glycidyl ether.
Further, the acrylate is one or more of methyl methacrylate, ethyl acrylate and butyl acrylate.
Further, the mass of the nano particles is 0.1-2% of the total mass of the monomers.
Further, the using amount of the initiator is 0.001-0.02% of the total mass of the methyl methacrylate monomer.
Further, the using amount of the release agent is 0.01-1% of the mass of the methyl methacrylate monomer.
The advantages of the invention are as follows: according to the Rayleigh scattering PMMA board provided by the invention, Rayleigh scattering is formed when a light source passes through the prepared PMMA board, so that the effects of diffusing blue sky and simulating sunlight are realized; the preparation method of the Rayleigh scattering PMMA plate provided by the invention is simple in process, easy to realize conditions, convenient for efficiently preparing the Rayleigh scattering PMMA plate and high in application value.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flow chart of a method for manufacturing a rayleigh scattering PMMA plate according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described, but covers any modifications, alterations, and improvements in the parts, components, and connections without departing from the spirit of the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present application will be described in detail with reference to the accompanying drawings 1 in conjunction with an embodiment.
Example one
The Rayleigh scattering PMMA plate comprises a transparent polymethyl methacrylate matrix and nano oxide particles uniformly distributed in the transparent polymethyl methacrylate matrix, wherein the diameter of the nano oxide particles is 5 nm. The nano oxide particles comprise silicon dioxide, titanium dioxide, zinc oxide and aluminum oxide. The nano oxide particles are modified by glycidyl methacrylate and grafted with acrylate polymers.
Example two
The Rayleigh scattering PMMA plate comprises a transparent polymethyl methacrylate matrix and nano oxide particles uniformly distributed in the transparent polymethyl methacrylate matrix, wherein the diameter of the nano oxide particles is 50 nm. The nano oxide particles comprise silicon dioxide, titanium dioxide, zinc oxide and aluminum oxide. The nano oxide particles are modified by glycidyl methacrylate and grafted with acrylate polymers.
EXAMPLE III
The Rayleigh scattering PMMA plate comprises a transparent polymethyl methacrylate matrix and nano oxide particles uniformly distributed in the transparent polymethyl methacrylate matrix, wherein the diameter of the nano oxide particles is 100 nm. The nano oxide particles comprise silicon dioxide, titanium dioxide, zinc oxide and aluminum oxide. The nano oxide particles are modified by glycidyl methacrylate and grafted with acrylate polymers.
Example four
The preparation method of the Rayleigh scattering PMMA plate comprises the following steps:
(1) modification treatment of nano silicon dioxide particles: nanosilica is a commercial product with a nominal diameter of 10 nm. Weighing 1g of nano silicon dioxide and 0.3g of glycidyl methacrylate, adding the nano silicon dioxide and the glycidyl methacrylate into 20ml of N, N-dimethylformamide, ultrasonically dispersing for 1h, adding 1000ppm of stannous chloride, heating to 120 ℃, and stirring for 2 hours. And after filtration, washing the modified nano silicon dioxide particles for a plurality of times by using N, N-dimethylformamide, carrying out vacuum filtration on the obtained product, and finally placing the product in an oven for drying for 24 hours at 50 ℃. Obtaining the modified nano silicon dioxide particles.
(2) Graft polymerization of nano silicon dioxide particles: adding 1g of modified nano silicon dioxide particles into 30ml of N, N-dimethylformamide serving as a solvent, ultrasonically dispersing for 1h, adding 14g of monomer ethyl acrylate, introducing nitrogen to exhaust air for 30min, adding 0.015g of azodiisobutyronitrile serving as an initiator, and stirring in a constant-temperature water bath at 60 ℃ under the protection of nitrogen to perform graft polymerization. After 2h of reaction, the viscous solution was poured into methanol with stirring to precipitate the polymer, which was washed several times with methanol and finally the product was dried under vacuum to constant weight.
(3) Pre-polymerization of monomers: weighing 58g of methyl methacrylate, ultrasonically dispersing 0.42g of nano silicon dioxide particles subjected to graft polymerization in monomer methyl methacrylate, adding 0.003g of initiator, stirring and heating to boil, maintaining the material in a boiling state, and cooling after the system reaches the required viscosity. When the materials are cooled to room temperature, 0.002g of initiator and 0.4g of release agent are added, and the materials are stirred uniformly to obtain a pre-polymerization material.
(4) And (4) metering the slurry, pouring the slurry into a silica glass mold, exhausting gas, and clamping by using a clamp.
(5) And (3) placing the mold filled with the materials in a water bath, maintaining the temperature of the water bath at 60 ℃, and reacting for 2 hours until the materials in the mold are completely hardened. Then the mould is placed into a drying room and is further cured for 2 hours at the high temperature of 110 ℃. And naturally cooling to room temperature, and removing the mold to obtain the Rayleigh scattering PMMA plate.
The rayleigh scattering PMMA plate prepared by the embodiment is transparent blue, when white incident light passes through, light mainly blue is scattered, the plate is blue sky effect, and the transmitted light mainly yellow is similar to sunlight.
EXAMPLE five
The preparation method of the Rayleigh scattering PMMA plate comprises the following steps:
(1) modification treatment of nano titanium dioxide particles: nano titanium dioxide is a commercial product with a nominal diameter of 158 nm. Weighing 1.5g of nano titanium dioxide and 0.3g of glycidyl acrylate, adding the nano titanium dioxide and the glycidyl acrylate into 30ml of N, N-dimethylformamide, ultrasonically dispersing for 1h, adding 1000ppm of stannous chloride, heating to 120 ℃, and stirring for 2 hours. And after filtration, washing the modified nano titanium dioxide particles for a plurality of times by using N, N-dimethylformamide, carrying out vacuum filtration on the obtained product, and finally placing the product in an oven to dry for 18 hours at 50 ℃. Obtaining the modified nano titanium dioxide particles.
(2) Graft polymerization of nano titanium dioxide particles: adding 1g of modified nano titanium dioxide particles into 40ml of DMF (dimethyl formamide) solvent, carrying out ultrasonic dispersion for 2 hours, adding 15g of methyl methacrylate monomer, introducing nitrogen to exhaust air for 60 minutes, adding 0.025g of azodiisobutyronitrile serving as an initiator, and stirring in a constant-temperature water bath at 60 ℃ under the protection of nitrogen to carry out graft polymerization. After 1h of reaction, the viscous solution was poured into methanol with stirring to precipitate the polymer, which was washed several times with methanol and finally the product was dried under vacuum to constant weight.
(3) Pre-polymerization of monomers: weighing 54g of methyl methacrylate, ultrasonically dispersing 0.45g of nano titanium dioxide particles subjected to graft polymerization in a monomer of methyl methacrylate, adding 0.004g of an initiator, stirring and heating to boil, maintaining the material in a boiling state, and cooling after the system reaches the required viscosity. When the materials are cooled to room temperature, 0.003g of initiator and 0.3g of release agent are added, and the materials are uniformly stirred to obtain a prepolymer.
(4) And (4) metering the slurry, pouring the slurry into a silica glass mold, exhausting gas, and clamping by using a clamp.
(5) And (3) placing the mold filled with the materials in a water bath, maintaining the temperature of the water bath at 40 ℃, and reacting for 3 hours until the materials in the mold are completely hardened. Then the mould is placed into a drying room and is further cured for 2 hours at the high temperature of 110 ℃. And naturally cooling to room temperature, and removing the mold to obtain the Rayleigh scattering PMMA plate.
EXAMPLE six
The preparation method of the Rayleigh scattering PMMA plate comprises the following steps:
(1) modification treatment of nano titanium dioxide particles: nano titanium dioxide is a commercial product with a nominal diameter of 18 nm. Weighing 1g of nano titanium dioxide and 0.5g of glycidyl acrylate, adding the nano titanium dioxide and the glycidyl acrylate into 40ml of N, N-dimethylformamide, ultrasonically dispersing for 1h, adding 1000ppm of stannous chloride, heating to 120 ℃, and stirring for 2.8 hours. After filtration, the modified nano titanium dioxide particles are washed for a plurality of times by N, N-dimethylformamide, the obtained product is filtered in vacuum, and finally the product is placed in an oven to be dried for 20 hours at 50 ℃. Obtaining the modified nano titanium dioxide particles.
(2) Graft polymerization of nano titanium dioxide particles: adding 1g of modified nano titanium dioxide particles into 50ml of N, N-dimethylformamide serving as a solvent, ultrasonically dispersing for 1h, adding 20g of methyl methacrylate serving as a monomer, introducing nitrogen to exhaust air for 90min, adding 0.025g of azodiisobutyronitrile serving as an initiator, and stirring in a constant-temperature water bath at 60 ℃ under the protection of nitrogen to perform graft polymerization. After 2.5h of reaction, the viscous solution was poured into methanol with stirring to precipitate the polymer, which was washed several times with methanol and finally the product was dried under vacuum to constant weight.
(3) Pre-polymerization of monomers: weighing 72g of methyl methacrylate, ultrasonically dispersing 0.54g of nano titanium dioxide particles subjected to graft polymerization in a monomer of methyl methacrylate, adding 0.005g of initiator, stirring and heating to boil, maintaining the material in a boiling state, and cooling after the system reaches the required viscosity. When the materials are cooled to room temperature, 0.004g of initiator and 0.5g of release agent are added, and the materials are stirred uniformly to obtain the prepolymer.
(4) And (4) metering the slurry, pouring the slurry into a silica glass mold, exhausting gas, and clamping by using a clamp.
(5) And (3) placing the mold filled with the materials in a water bath, maintaining the temperature of the water bath at 40 ℃, and reacting for 3 hours until the materials in the mold are completely hardened. Then the mould is placed into a drying room and is further cured for 2 hours at the high temperature of 110 ℃. And naturally cooling to room temperature, and removing the mold to obtain the Rayleigh scattering PMMA plate.
EXAMPLE seven
The preparation method of the Rayleigh scattering PMMA plate comprises the following steps:
(6) modification treatment of nano titanium dioxide particles: nano titanium dioxide is a commercial product with a nominal diameter of 20 nm. Weighing 1g of nano titanium dioxide and 0.25g of glycidyl acrylate, adding the nano titanium dioxide and the glycidyl acrylate into 20ml of N, N-dimethylformamide, ultrasonically dispersing for 2h, adding 1000ppm of stannous chloride, heating to 120 ℃, and stirring for 3 hours. After filtration, the modified nano titanium dioxide particles are washed by DMF for a plurality of times, the obtained product is filtered in vacuum, and finally the product is placed in an oven for drying for 24 hours at 50 ℃. Obtaining the modified nano titanium dioxide particles.
(7) Graft polymerization of nano titanium dioxide particles: adding 1g of modified nano titanium dioxide particles into 30ml of N, N-dimethylformamide serving as a solvent, ultrasonically dispersing for 1h, adding 15g of methyl methacrylate serving as a monomer, introducing nitrogen to exhaust air for 30min, adding 0.015g of azodiisobutyronitrile serving as an initiator, and stirring in a constant-temperature water bath at 60 ℃ under the protection of nitrogen to perform graft polymerization. After 2h of reaction, the viscous solution was poured into methanol with stirring to precipitate the polymer, which was washed several times with methanol and finally the product was dried under vacuum to constant weight.
(8) Pre-polymerization of monomers: weighing 54g of methyl methacrylate, ultrasonically dispersing 0.45g of nano titanium dioxide particles subjected to graft polymerization in a monomer of methyl methacrylate, adding 0.004g of an initiator, stirring and heating to boil, maintaining the material in a boiling state, and cooling after the system reaches the required viscosity. When the materials are cooled to room temperature, 0.003g of initiator and 0.3g of release agent are added, and the materials are uniformly stirred to obtain a prepolymer.
(9) And (4) metering the slurry, pouring the slurry into a silica glass mold, exhausting gas, and clamping by using a clamp.
And (3) placing the mold filled with the materials in a water bath, maintaining the temperature of the water bath at 40 ℃, and reacting for 3 hours until the materials in the mold are completely hardened. Then the mould is placed into a drying room and is further cured for 2 hours at the high temperature of 110 ℃. And naturally cooling to room temperature, and removing the mold to obtain the Rayleigh scattering PMMA plate.
Example eight
This example is substantially the same as example five, except that the nano-oxide used in this example is nano-titania particles.
Example nine
This example is essentially the same as example five, except that the modifier used in this example is glycidyl acrylate.
Example ten
This example is essentially the same as example five, except that butyl acrylate is used as the monomer in step (2) of this example.
EXAMPLE eleven
This example is substantially the same as example six, except that the diameter of the nano-titania particles used in this example is 25-30nm, for example 25 nm.
Example twelve
This example is essentially the same as example six, except that the modifier used in this example is allyl glycidyl ether.
EXAMPLE thirteen
This example is substantially the same as example five, except that in step (3) of this example, the mass of the nanosilica is 1.0 g.
Comparative example
This comparative example is substantially the same as example five except that the nano-silica used in the comparative example has a particle size of 100-200nm, for example 100 nm.
The PMMA sheets prepared in this comparative example were hazy and exhibited no blue visual effect when white incident light was passed through.
In summary, in the rayleigh scattering PMMA sheet provided by the embodiment of the invention, rayleigh scattering is formed when the light source passes through the prepared PMMA sheet, thereby realizing the effects of diffusing blue sky and simulating sunlight; the preparation method of the Rayleigh scattering PMMA plate provided by the embodiment of the invention has the advantages of simple process, easy realization of conditions, convenience for efficiently preparing the Rayleigh scattering PMMA plate and high application value.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. For embodiments of the method, reference is made to the description of the apparatus embodiments in part. The present invention is not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
The above description is only an example of the present application and is not limited to the present application. Various modifications and alterations to this application will become apparent to those skilled in the art without departing from the scope of this invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (9)
1. The Rayleigh scattering PMMA plate is characterized by comprising a transparent polymethyl methacrylate matrix and nano oxide particles uniformly distributed in the transparent polymethyl methacrylate matrix, wherein the diameter of the nano oxide particles is 5nm-100 nm.
2. The rayleigh scattering PMMA plate according to claim 1, wherein the nano oxide particles comprise silica, titania, zinc oxide, alumina.
3. The rayleigh scattering PMMA plate according to claim 1, wherein the nano oxide particles are modified with glycidyl methacrylate and grafted with an acrylate polymer.
4. A preparation method of a Rayleigh scattering PMMA plate is characterized by comprising the following steps:
(1) modification treatment of nanoparticles: dissolving a certain mass of nano particles in a solvent N, N-dimethylformamide to prepare a mixed solution with the mass fraction of 2% -10%, adding a modifier, and performing ultrasonic dispersion for 1h, wherein the mass ratio of the nano particles to the modifier is 2-5:1, adding 1000ppm of stannous chloride, heating to 100-140 ℃, and stirring for 2h-3h to obtain modified nano oxide particles; after filtering, washing the modified nano oxide particles for a plurality of times by using N, N-dimethylformamide, carrying out vacuum filtration on the obtained product, and finally drying the product in an oven at 50 ℃ for 18-24 h;
(2) graft polymerization of nanoparticles: adding modified nano oxide particles into N, N-dimethylformamide serving as a solvent, carrying out ultrasonic dispersion for 1-3 h, adding an acrylate monomer, introducing nitrogen to exhaust air, adding azodiisobutyronitrile serving as an initiator, and stirring in a constant-temperature water bath at 50-80 ℃ under the protection of nitrogen to carry out graft polymerization; wherein the mass of the nano oxide particles accounts for 5-10% of the total mass of the acrylate monomer, and the mass of the initiator azodiisobutyronitrile accounts for 0.05-0.2% of the total weight of the acrylate monomer; after reacting for 1-3 h, pouring the viscous solution into methanol under stirring to precipitate a polymer, washing the polymer for multiple times by using the methanol, and finally drying the product in vacuum to constant weight;
(3) pre-polymerization of monomers: ultrasonically dispersing nano oxide particles subjected to graft polymerization in a methyl methacrylate monomer, adding an initiator azobisisobutyronitrile, stirring and heating to boil, maintaining the material in a boiling state, cooling after the system reaches a required viscosity, adding the initiator azobisisobutyronitrile and a release agent stearic acid when the material is cooled to room temperature, and uniformly stirring to obtain a pre-polymerization slurry;
(4) metering the pre-polymerized slurry liquid, filling the pre-polymerized slurry liquid into a silica glass mold, discharging gas, and clamping by using a clamp;
(5) placing the mold in a water bath, maintaining the temperature of the water bath at 40-60 ℃, and reacting for 2-8 h until the materials in the mold are completely hardened; and then placing the mould into a drying room, further curing for 1-3 h at the high temperature of 90-120 ℃, naturally cooling to room temperature, and removing the mould to obtain the Rayleigh scattering PMMA plate.
5. The method for preparing a rayleigh scattering PMMA plate according to claim 4, wherein the modifier is glycidyl methacrylate, glycidyl acrylate, allyl glycidyl ether.
6. The method for preparing a Rayleigh scattering PMMA plate according to claim 4, characterized in that the acrylate is one or more of methyl methacrylate, ethyl acrylate and butyl acrylate.
7. The method for preparing a Rayleigh scattering PMMA plate according to claim 4, characterized in that the mass of the nano particles is 0.1% -2% of the total mass of the monomers.
8. The method for preparing a Rayleigh scattering PMMA plate according to claim 4, characterized in that the amount of the initiator is 0.001% -0.02% of the total mass of the methyl methacrylate monomer.
9. The method for preparing the Rayleigh scattering PMMA plate according to claim 4, characterized in that the amount of the mold release agent is 0.01% -1% of the mass of the methyl methacrylate monomer.
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| CN114644802A (en) * | 2022-03-22 | 2022-06-21 | 浙江华帅特新材料科技有限公司 | Manufacturing method of blue-phase synergistic PMMA heat-resistant plate and blue-phase synergistic PMMA heat-resistant plate |
| CN115197518A (en) * | 2022-06-07 | 2022-10-18 | 王培育 | Plate with blue light scattering effect and preparation method and application thereof |
| CN115351935A (en) * | 2022-08-04 | 2022-11-18 | 安徽新涛光电科技有限公司 | Casting equipment for casting plate and preparation method |
| CN116102838A (en) * | 2022-04-13 | 2023-05-12 | 喜洋阳(南京)科技发展有限公司 | Preparation method of nano titanium dioxide-polymethyl methacrylate composite board |
| CN116120693A (en) * | 2023-02-10 | 2023-05-16 | 昆山中亿丰光电科技有限公司 | Preparation method of polymethyl methacrylate-based Rayleigh scattering light diffusion plate material |
| CN116284522A (en) * | 2023-02-10 | 2023-06-23 | 昆山中亿丰光电科技有限公司 | In-situ polymethyl methacrylate master batch with Rayleigh scattering effect and preparation method thereof |
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