CN114656708B - Polymer sheet and preparation method and application thereof - Google Patents

Polymer sheet and preparation method and application thereof Download PDF

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Publication number
CN114656708B
CN114656708B CN202210226797.1A CN202210226797A CN114656708B CN 114656708 B CN114656708 B CN 114656708B CN 202210226797 A CN202210226797 A CN 202210226797A CN 114656708 B CN114656708 B CN 114656708B
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transparent
polymer
polymer sheet
transparent organic
refractive index
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CN114656708A (en
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姜文
赵振虎
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Jiangsu Yongxin Material Technology Co ltd
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    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
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    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
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    • H01L31/042—PV modules or arrays of single PV cells
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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    • C08J2323/12—Polypropene
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    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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    • C08J2425/00—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 at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2425/02—Homopolymers or copolymers of hydrocarbons
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    • C08J2433/00—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
    • C08J2433/04—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
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    • C08K5/04—Oxygen-containing compounds
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    • C08K5/134—Phenols containing ester groups
    • C08K5/1345—Carboxylic esters of phenolcarboxylic acids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract

The invention provides a polymer sheet, a preparation method and application thereof, wherein the polymer sheet comprises a transparent polymer and transparent organic microparticles, and the mass ratio of the transparent polymer to the transparent organic microparticles is 1:0.01 to 0.5. In addition, the selected transparent organic microparticles and transparent polymers have proper refractive index difference, and the polymer sheet provided by the invention has high light transmittance, so that the light transmittance of agricultural greenhouse films, photovoltaic cell panel packaging films, transparent photovoltaic back plates and other applications can be improved, the light loss is reduced, and the light application efficiency is improved.

Description

Polymer sheet and preparation method and application thereof
Technical Field
The invention relates to the field of optics, in particular to a polymer sheet, a preparation method and application thereof.
Background
The agricultural plastic greenhouse can reduce heat loss while irradiating sunlight to plants in the greenhouse, so that the temperature in the greenhouse is improved, the growth of crops is facilitated, the contribution to agricultural production is huge, and the problem of effective supply of crops such as vegetables and flowers in low-temperature areas or winter is solved. However, when sunlight passes through a plastic greenhouse film (most of which are made of PE and EVA materials), the light transmittance is reduced, so that solar energy is lost, and the solar energy cannot be fully utilized.
EVA and POE are used for bonding and fixing toughened glass and a battery piece, and the battery piece and a backboard are used for the photovoltaic cell panel, and are collectively called as packaging in the industry. After passing through the glass, sunlight can irradiate the power generation main body-battery piece to generate power through the EVA and POE layers, and the influence of the EVA and POE layers on the light transmittance can also cause solar energy loss.
In recent years, in order to utilize reflected sunlight on the back of a solar electromagnetic plate, a transparent back plate starts to appear, and the transparent back plate made of materials such as PET double-sided fluorine, PET/fluorine film composite, PP and EVA composite gradually becomes the main stream of the market, but the light transmittance of the transparent back plate needs to be improved, and the influence on the photoelectric conversion efficiency of a battery plate is obvious.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a polymer sheet, as well as a method for its preparation and use, which has a higher light transmittance.
To achieve the above and other related objects, the present invention is achieved by the following technical means.
The first aspect of the present invention provides a polymer sheet, the polymer sheet comprising a transparent polymer and transparent organic microparticles, the transparent organic microparticles having a mass ratio of 1:0.01 to 0.5, preferably 1:0.01 to 0.1.
The preparation method of the polymer sheet provided by the second aspect of the invention comprises the following steps: s1, according to the mass ratio of 1:0.01 to 0.5:0 to 0.01:0 to 0.01 to provide transparent polymers, transparent organic microparticles, light stabilizers and antioxidants; s2, preparing master batches from the transparent organic microparticles, the light stabilizer, the antioxidant and the partially transparent polymer mixture; s3, mixing the master batch in the S2 with the rest transparent polymer, and then forming a film to obtain the polymer sheet.
The third aspect of the invention provides the use of the polymer sheet in agricultural greenhouse planting, and/or the use of the polymer sheet in photovoltaic EVA, POE adhesive films, and/or the use of the polymer sheet on a photovoltaic transparent backsheet.
Drawings
FIG. 1 shows a schematic structural diagram of a polymer sheet added with transparent organic microparticles according to the present invention
Wherein the reference numerals in fig. 1 are as follows:
1 is a transparent polymer
2 Is transparent organic micron particle
Detailed Description
The inventor of the present invention found through a large number of experiments that: transparent organic microparticles with different refractive indexes in a specific proportion and a specific particle size are added into transparent polymer, and the transparent organic microparticles with different refractive indexes are prepared into a pure polymer sheet with the light transmittance higher than that of the transparent organic microparticles with the same thickness and without the addition of the transparent organic microparticles with different refractive indexes. On this basis, the present invention has been completed.
The first aspect of the present invention provides a polymer sheet comprising a transparent polymer and transparent organic microparticles, the mass ratio of the transparent polymer to the transparent organic microparticles being 1:0.01 to 0.5, preferably 1:0.01 to 0.1, optionally 1:0.01 to 0.06,1:0.0.6 to 0.1,1:0.1 to 0.2,1:0.2 to 0.5. Or the mass of the transparent organic microparticles is not more than 50wt% of the mass of the transparent polymer, preferably, the amount of the transparent organic microparticles added is not more than 10wt% of the mass of the transparent polymer, and more is liable to bring about an increase in cost and a change in mechanical properties of the sheet.
Wherein the transparent polymer is a polymer for conventional film forming and generally comprises one or more of PE (polyethylene), PP (polypropylene), EVA (ethylene-vinyl acetate copolymer) PET (polyethylene terephthalate).
In a preferred embodiment, the transparent organic microparticles are uniformly distributed in the transparent polymer, the transparent organic microparticles are spherical, preferably in a right sphere shape, the right sphere-shaped transparent organic microparticles are easy to synthesize, and secondly, after the particles are freely distributed in the polymer, only one point opposite to the direction of the light source theoretically generates total reflection light, so that the influence on the light transmittance is minimized. Meanwhile, the regular spherical particles have high fluidity and are easy to disperse. In the case of other shapes, such as cubes, the reflection surface facing the light source inevitably appears after free distribution in the polymer, resulting in a decrease in light transmittance.
In a preferred embodiment, the transparent organic microparticles have an average particle size of 2 to 50 μm, preferably the transparent organic microparticles have an average particle size of 2 to 40 μm.
In a preferred embodiment, the ratio of refractive index of the transparent polymer to transparent organic microparticles is 1:0.8 to 1.
In a preferred embodiment, the refractive index of the transparent polymer is 1.40 to 1.60, and preferably, the refractive index of the transparent polymer is 1.45 to 1.59.
In a preferred embodiment, the refractive index of the transparent organic microparticles is 1.40-1.59, and the refractive index of the transparent organic microparticles is appropriately different from that of the transparent polymer, so that the light transmittance is improved when the transparent microparticles with different refractive indexes are added into the transparent polymer as described in the reference embodiment.
In a preferred embodiment, the transparent organic microparticles are preferably made of one or more of polysiloxane, polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polyethylene terephthalate-1, 4-cyclohexanedimethanol ester (PETG), polycarbonate (PC), polyamide resin (PA), polystyrene (PS), styrene-acrylonitrile copolymer (SAN).
In a specific embodiment, the transparent organic microparticles are made of polysiloxane and have a refractive index of 1.40-1.43, the transparent organic microparticles are made of polycarbonate and have a refractive index of 1.585, the transparent organic microparticles are made of polystyrene and have a refractive index of 1.585, the transparent organic microparticles are made of polyethylene terephthalate-1, 4-cyclohexanedimethanol and have a refractive index of 1.57, and the transparent organic microparticles are made of styrene-acrylonitrile copolymer and have a refractive index of 1.57.
In a preferred embodiment, the polymer sheet further comprises a light stabilizer and/or an antioxidant. The proportions of the light stabilizer and the antioxidant may be compounded as required.
In a preferred embodiment, the transparent polymer, light stabilizer and antioxidant are present in a mass ratio of 1:0 to 0.01: from 0 to 0.01, preferably, the sum of the addition amounts of the light stabilizer and the antioxidant is not more than 1% by weight based on the mass of the transparent polymer.
In a preferred embodiment, the light stabilizer and/or the antioxidant are each independently selected from at least one of a hindered amine, a hindered phenol, or a phosphite, or are compounded. For example, hindered amines 944, 783, 788, 622, 362, 360, 119 and XT100, T68, T69, etc., and antioxidants B215, B225, B900, 1076, 1010, 168, etc. may be used.
The second aspect of the present invention provides a method for producing the polymer sheet described above: s1, dividing a transparent polymer into a first part of transparent polymer and a second part of transparent polymer, mixing transparent organic microparticles, a light stabilizer, an antioxidant and the first part of transparent polymer according to a proportion to obtain master batch, and specifically extruding the master batch by a screw extruder to obtain the master batch;
s2, mixing the master batch in the S1 with a second part of transparent polymer, and then forming a film to obtain a polymer sheet, specifically obtaining the polymer sheet through film forming equipment. Uniformly mixing and coextruding a part of transparent polymer and transparent organic microparticles to form master batch; the film is then formed into polymer flakes in such a way that the transparent organic microparticles are uniformly distributed in the polymer flakes that the transparent polymer ultimately forms.
In a preferred embodiment, in step S1, the mass ratio of the first partially transparent polymer to the second partially transparent polymer is 0.1 to 0.5:1, optionally 0.1 to 0.2:1,0.2 to 0.3:1,0.3 to 0.4:1,0.4 to 0.5:1.
The third aspect of the invention provides the use of the polymer sheet or the polymer sheet prepared by the preparation method in agricultural greenhouse planting, and/or the use of the polymer sheet in photovoltaic EVA, POE adhesive films, and/or the use of the polymer sheet on a photovoltaic transparent back sheet.
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Before the embodiments of the invention are explained in further detail, it is to be understood that the invention is not limited in its scope to the particular embodiments described below; it is also to be understood that the terminology used in the examples of the invention is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the invention. The test methods in the following examples, in which specific conditions are not noted, are generally conducted under conventional conditions or under conditions recommended by the respective manufacturers.
Where numerical ranges are provided in the examples, it is understood that unless otherwise stated herein, both endpoints of each numerical range and any number between the two endpoints are significant both in the numerical range. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In addition to the specific methods, devices, materials used in the embodiments, any methods, devices, and materials of the prior art similar or equivalent to those described in the embodiments of the present invention may be used to practice the present invention according to the knowledge of one skilled in the art and the description of the present invention.
Example 1
In this example, a polymer sheet having a thickness of 80 μm is disclosed, and the components and mass contents of the components of the polymer sheet are as follows:
The polyethylene is film-grade high-transparency polyethylene mark: 2420D, medium sea oil shell company, refractive index 1.45; the transparent organic micron particles are polysiloxane (specifically organic elastomer) materials with the average particle diameter of 3.0 mu m, and are made of products of the Dow chemical company, and the brand: DOWSIL TM EP-5500, the refractive index is 1.41.
The specific manufacturing method comprises the following steps: firstly, uniformly mixing 2.5 parts of transparent organic microparticles of DOWSIL TM EP-5500 with 25 parts of film-grade high-transparency polyethylene 2420D, 0.4 part of light stabilizer 788 and 0.1 part of antioxidant 1010, preparing into master batches by a screw extruder, adding the master batches into the rest 72 parts of film-grade high-transparency polyethylene, uniformly mixing, and preparing into a sheet with the transparent organic microparticles content of 2.5 percent and the thickness of 80 microns by a film-making device.
Example 2
In this example, a polymer sheet with a thickness of 100 microns is disclosed, and the components and mass ratios of the polymer sheet are as follows:
the EVA (ethylene-vinyl acetate copolymer) is film-grade high-transparency EVA, and the brand: 3130, produced by dupont, usa, having a refractive index of 1.48; the transparent organic microparticles are made of PMMA with the average particle size of 15 microns and are manufactured by Souzhou comprehensive grinding company, and the marks are as follows: MX-1500H, refractive index 1.49.
The specific manufacturing method comprises the following steps: 5.0 parts of transparent organic micron particles MX-1500H, 30 parts of EVA resin, 0.4 part of light stabilizer 788 and 0.1 part of antioxidant 1010 are uniformly mixed and extruded by a screw extruder to obtain master batches, and then the master batches are added into the remaining 64.5 parts of EVA resin to be uniformly mixed, and a film with the transparent organic micron particles content of 5.0wt% and the thickness of 100 microns is manufactured by film manufacturing equipment.
Example 3
In this example, a polymer sheet having a thickness of 80 microns is disclosed, the polymer sheet comprising the following components in proportions:
The polypropylene is homopolymerized polypropylene, and the brand is: s1003, manufactured by Shanghai Seaceae petrochemical industry Limited liability company, with refractive index of 1.49; the organic positive spherical micron particles are polysiloxane materials with the average particle diameter of 20 microns, and are products of Shanghai materials technology (Shanghai) limited company, brand: HL620, refractive index 1.41.
The specific manufacturing method comprises the following steps: first, 3 parts of transparent organic microparticles are addedHL620, 20 parts of polypropylene S1003, 0.4 part of light stabilizer 788 and 0.1 part of antioxidant 1010 are uniformly mixed and extruded by a screw extruder to obtain master batches, and then the master batches are added into the rest 66.5 parts of polypropylene and uniformly mixed, and a polymer sheet with the transparent organic micron particle content of 3 percent and the thickness of 80 microns is manufactured by a film forming device.
Example 4
In this example, a polymer sheet having a thickness of 70 microns is disclosed, the polymer sheet comprising the following components in proportions:
The polyethylene is film-grade high-transparency polyethylene mark: 2420D, medium sea oil shell company, refractive index 1.45; the organic positive spherical transparent organic micron particles are made of polystyrene with the average particle diameter of 3.0 microns, and are made of Nanjing Jieshansi new material Co., ltd, with the brand: JNS-PC02-3.0 with a refractive index of 1.585.
The specific manufacturing method comprises the following steps: firstly, uniformly mixing 3.0 parts of transparent organic micron particles JNS-PC02-3.0 with 20 parts of film-grade high-transparency polyethylene, 0.4 part of light stabilizer 788 and 0.1 part of antioxidant 1010, extruding the mixture through a screw extruder to prepare master batches, adding the master batches into the rest 66.5 parts of film-grade high-transparency polyethylene, uniformly mixing, and preparing a polymer sheet with the transparent organic micron particle content of 3.0 percent and the thickness of 70 microns through film-making equipment.
Example 5
In this example, a polymer sheet having a thickness of 90 microns is disclosed, the polymer sheet having the following composition and proportions:
The EVA (ethylene-vinyl acetate copolymer) is film-grade high-transparency EVA brand: 3130, produced by dupont, usa, having a refractive index of 1.48; the polyethylene is film-grade high-transparency polyethylene mark: 2420D, medium sea oil shell company, refractive index 1.45. The transparent organic micron particles are 30.0 micron polysiloxane material with average particle diameter, and are manufactured by Shanghai materials technology (Shanghai) limited company, with the brand: HL630, refractive index 1.41.
The specific manufacturing method comprises the following steps: first 4 parts of transparent organic microparticlesHL630 and 18 parts of film-grade high-transparency polyethylene 2420D are uniformly mixed and extruded by a screw extruder to prepare master batches, then the master batches are added into the rest 50 parts of film-grade high-transparency polyethylene and 37.5 parts of EVA and uniformly mixed, and a polymer sheet with the organic spherical transparent organic micron particle content of 4.0 percent and the thickness of 90 microns is prepared by a film-making device.
Comparative example 1
In this comparative example, a polymer sheet having a thickness of 80 microns is disclosed, the polymer sheet having the following composition and proportions:
Polyethylene: 99.5 parts
Light stabilizer 788:0.4 part
Antioxidant 1010: 0.1 part
The polyethylene is film-grade high-transparency polyethylene mark: 2420D, medium sea oil shell company, refractive index 1.45;
The specific manufacturing method comprises the following steps: firstly, 25 parts of polyethylene, 0.4 part of light stabilizer 788 and 0.1 part of antioxidant 1010 are uniformly mixed and extruded by a screw extruder to prepare master batches, and then the master batches are added into the rest of film-level high-transparency polyethylene to be uniformly mixed, and polymer sheets with the thickness of 80 microns are manufactured by film-making equipment.
Comparative example 2
In this example, a polymer sheet having a thickness of 100 microns is disclosed, the polymer sheet comprising the following components in proportions:
EVA: 99.5 parts
Light stabilizer 788:0.4 part
Antioxidant 1010: 0.1 part
The EVA (ethylene-vinyl acetate copolymer) is film-grade high-transparency EVA, and the brand: 3130, produced by dupont, usa, having a refractive index of 1.48.
The specific manufacturing method comprises the following steps: firstly, uniformly mixing 30 parts of EVA resin, 0.4 part of light stabilizer 788 and 0.1 part of antioxidant 1010, extruding the mixture through a screw extruder to obtain master batches, adding the master batches into the rest 69.5 parts of EVA resin, uniformly mixing the master batches, and preparing a film with the thickness of 100 micrometers through film-making equipment.
Comparative example 3
In this example, a polymer sheet having a thickness of 80 microns is disclosed, the polymer sheet comprising the following components in proportions:
Polypropylene: 99.5 parts
Light stabilizer 788:0.4 part
Antioxidant 1010: 0.1 part
The polypropylene is homopolymerized polypropylene, and the brand is: s1003, manufactured by Shanghai Seaceae petrochemical industry Limited liability company, with a refractive index of 1.49.
The specific manufacturing method comprises the following steps: firstly, 20 parts of polypropylene S1003, 0.4 part of light stabilizer 788 and 0.1 part of antioxidant 1010 are uniformly mixed and extruded by a screw extruder to obtain master batches, and then the master batches are added into the rest 79.5 parts of polypropylene to be uniformly mixed, and a polymer sheet with the thickness of 80 microns is manufactured by a film-making device.
Comparative example 4
In this example, a polymer sheet having a thickness of 70 microns is disclosed, the polymer sheet comprising the following components in proportions:
Polyethylene: 99.5 parts
Light stabilizer 788:0.4 part
Antioxidant 1010: 0.1 part
The polyethylene is film-grade high-transparency polyethylene mark: 2420D, medium sea oil shell company, refractive index 1.45.
The specific manufacturing method comprises the following steps: firstly, uniformly mixing 20 parts of film-grade high-transparency polyethylene, 0.4 part of light stabilizer 788 and 0.1 part of antioxidant 1010, extruding the mixture through a screw extruder to prepare master batches, adding the master batches into the rest 79.5 parts of film-grade high-transparency polyethylene, uniformly mixing, and preparing a polymer sheet with the thickness of 70 microns through film-making equipment.
Comparative example 5
In this example, a polymer sheet having a thickness of 90 microns is disclosed, the polymer sheet having the following composition and proportions:
The EVA (ethylene-vinyl acetate copolymer) is film-grade high-transparency EVA brand: 3130, produced by dupont, usa, having a refractive index of 1.48; the polyethylene is film-grade high-transparency polyethylene mark: 2420D, medium sea oil shell company, refractive index 1.45.
The specific manufacturing method comprises the following steps: firstly, uniformly mixing 18 parts of film-grade high-transparency polyethylene 2420D, 0.4 part of light stabilizer 788 and 0.1 part of antioxidant 1010, extruding the mixture through a screw extruder to prepare master batches, adding the master batches into the rest 52.85 parts of film-grade high-transparency polyethylene and 28.65 parts of EVA, uniformly mixing, and preparing a polymer sheet with the thickness of 90 micrometers through film-making equipment.
Table 1 shows the light transmittance of the transparent organic microparticle-containing flakes of examples 1 to 5 compared to the light transmittance of the non-microparticle-containing flakes of the same thickness.
As is evident from table 1 above: the polymer sheet containing transparent organic microparticles formed in the technical scheme disclosed by the application has obviously improved light transmittance compared with the polymer sheet with the same thickness and the same material.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (4)

1. A polymer sheet, comprising the following components in percentage by mass:
wherein the transparent polymer is EVA with a refractive index of 1.48; transparent organic micron particles with 15 micron average particle size PMMA material;
Or, the polymer sheet comprises the following components in percentage by mass:
wherein the transparent polymer is EVA with a refractive index of 1.48; transparent polymer PE with refractive index of 1.45 and polysiloxane material with average particle diameter of 30 microns of transparent organic micron particles;
Or, the polymer sheet comprises the following components in percentage by mass:
wherein the transparent polymer is polypropylene with a refractive index of 1.49; a polysiloxane material with 20-micron average particle size of transparent organic micron particles;
The transparent organic microparticles are spherical;
The transparent organic microparticles are uniformly distributed in the transparent polymer.
2. A method of preparing a polymer sheet as claimed in claim 1, comprising the steps of:
S1, dividing a transparent polymer into a first part of transparent polymer and a second part of transparent polymer, and mixing transparent organic microparticles, a light stabilizer, an antioxidant and the first part of transparent polymer according to a proportion to obtain master batch;
S2, mixing the master batch in the S1 with a second part of transparent polymer, and then forming a film to obtain a polymer sheet.
3. The method of producing a polymer sheet according to claim 2, wherein in step S1, the mass ratio of the first partially transparent polymer to the second partially transparent polymer is 0.1 to 0.5:1.
4. Use of a polymer sheet according to claim 1 in photovoltaic EVA, POE adhesive film, and/or on a photovoltaic transparent backsheet.
CN202210226797.1A 2022-03-09 2022-03-09 Polymer sheet and preparation method and application thereof Active CN114656708B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108570178A (en) * 2018-04-12 2018-09-25 涌奇材料技术（上海）有限公司 A kind of diffusing scattering film and its preparation method and application

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108570178A (en) * 2018-04-12 2018-09-25 涌奇材料技术（上海）有限公司 A kind of diffusing scattering film and its preparation method and application

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