CN115109372A - High-performance acrylic sheet and preparation method thereof - Google Patents
High-performance acrylic sheet and preparation method thereof Download PDFInfo
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- CN115109372A CN115109372A CN202110885077.1A CN202110885077A CN115109372A CN 115109372 A CN115109372 A CN 115109372A CN 202110885077 A CN202110885077 A CN 202110885077A CN 115109372 A CN115109372 A CN 115109372A
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- acrylic sheet
- performance acrylic
- microspheres
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- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000004005 microsphere Substances 0.000 claims abstract description 47
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 45
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 42
- 239000000049 pigment Substances 0.000 claims abstract description 20
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 claims abstract description 14
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 8
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000004611 light stabiliser Substances 0.000 claims description 22
- 239000002270 dispersing agent Substances 0.000 claims description 21
- 239000012760 heat stabilizer Substances 0.000 claims description 19
- 238000009792 diffusion process Methods 0.000 claims description 18
- 239000004793 Polystyrene Substances 0.000 claims description 13
- 229920002223 polystyrene Polymers 0.000 claims description 13
- 229920000734 polysilsesquioxane polymer Polymers 0.000 claims description 11
- 229920001038 ethylene copolymer Polymers 0.000 claims description 10
- 239000012964 benzotriazole Substances 0.000 claims description 6
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 4
- HJIAMFHSAAEUKR-UHFFFAOYSA-N (2-hydroxyphenyl)-phenylmethanone Chemical class OC1=CC=CC=C1C(=O)C1=CC=CC=C1 HJIAMFHSAAEUKR-UHFFFAOYSA-N 0.000 claims description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 claims description 2
- 150000008360 acrylonitriles Chemical class 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 235000019359 magnesium stearate Nutrition 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 claims description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 claims description 2
- 229960001860 salicylate Drugs 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- 229940037312 stearamide Drugs 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000002077 nanosphere Substances 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 4
- 238000005286 illumination Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 229910052710 silicon Inorganic materials 0.000 description 10
- 239000010703 silicon Substances 0.000 description 10
- 238000002834 transmittance Methods 0.000 description 10
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 9
- 239000005977 Ethylene Substances 0.000 description 9
- 229920001577 copolymer Polymers 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- JHWGFJBTMHEZME-UHFFFAOYSA-N 4-prop-2-enoyloxybutyl prop-2-enoate Chemical compound C=CC(=O)OCCCCOC(=O)C=C JHWGFJBTMHEZME-UHFFFAOYSA-N 0.000 description 8
- 238000013329 compounding Methods 0.000 description 8
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 8
- 235000019832 sodium triphosphate Nutrition 0.000 description 8
- VFLDPWHFBUODDF-FCXRPNKRSA-N curcumin Chemical group C1=C(O)C(OC)=CC(\C=C\C(=O)CC(=O)\C=C\C=2C=C(OC)C(O)=CC=2)=C1 VFLDPWHFBUODDF-FCXRPNKRSA-N 0.000 description 6
- -1 modified aluminum tripolyphosphate Chemical class 0.000 description 6
- FAVWXKQADKRESO-UHFFFAOYSA-N 2-methylprop-2-enoic acid;prop-1-ene Chemical compound CC=C.CC(=C)C(O)=O FAVWXKQADKRESO-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 4
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000003017 thermal stabilizer Substances 0.000 description 4
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 4
- JHPBZFOKBAGZBL-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylprop-2-enoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)=C JHPBZFOKBAGZBL-UHFFFAOYSA-N 0.000 description 3
- 239000004148 curcumin Substances 0.000 description 3
- 229940109262 curcumin Drugs 0.000 description 3
- 235000012754 curcumin Nutrition 0.000 description 3
- VFLDPWHFBUODDF-UHFFFAOYSA-N diferuloylmethane Natural products C1=C(O)C(OC)=CC(C=CC(=O)CC(=O)C=CC=2C=C(OC)C(O)=CC=2)=C1 VFLDPWHFBUODDF-UHFFFAOYSA-N 0.000 description 3
- YAHBZWSDRFSFOO-UHFFFAOYSA-L dimethyltin(2+);2-(2-ethylhexoxy)-2-oxoethanethiolate Chemical group CCCCC(CC)COC(=O)CS[Sn](C)(C)SCC(=O)OCC(CC)CCCC YAHBZWSDRFSFOO-UHFFFAOYSA-L 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 150000003573 thiols Chemical group 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical group [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical group CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions 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; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/327—Aluminium phosphate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to C08L 33/12, and particularly relates to a high-performance acrylic sheet and a preparation method thereof. The raw materials comprise: 82-95 parts of polymethyl methacrylate, 4-8 parts of organic nano microspheres, 5-10 parts of acrylate, 0.05-0.08 part of polymerized aluminum phosphate, 0.5-1 part of azodiisobutyronitrile, 3-7 parts of pigment and 2-5 parts of auxiliary agent. The high-performance acrylic sheet prepared by the invention can enable light rays to be continuously refracted, reflected and scattered between chemical particles and resin, has the advantages of uniform light, light weight, easiness in forming and the like, and can be widely applied to buildings, hotels, markets, museums, advertisement signs, industrial panels, furniture illumination and the like.
Description
Technical Field
The invention relates to C08L 33/12, in particular to a high-performance acrylic sheet and a preparation method thereof.
Background
The lamp light is an indispensable part of human life, and the illumination can provide comfortable and pleasant environment for human beings while creating good visibility. Wherein the material of the light box is an important influencing factor for good lighting. The polycarbonate plate and the glass are common materials with better light transmittance, but the polycarbonate has poor weather resistance, influences the service life of the product, and the glass has poor impact resistance and limited application range. In addition, the traditional fluorescent lamp source mainly works in a point light source mode, and the space illumination distribution is uneven. With the development of society, polymethyl methacrylate and resin thereof are generally used as substrates to prepare composite plates nowadays.
Patent 201610271925.9 discloses a light guide material and a light guide plate, which improve the light diffusion effect through the combined action of a plurality of resins and additives, but the preparation method is complicated, the compatibility of various resins is poor, and the improvement effect on the light diffusion of the plate is limited.
Patent CN201910136275.0 provides a high-strength high-transmittance acrylic sheet and a preparation method thereof, the high-strength high-transmittance acrylic sheet combines a glass fiber sheet under the action of nano calcium carbonate, nano graphene, nano silicon carbide and fluorite powder, has the advantages of high strength and high transparency, but is expensive and not suitable for large-scale popularization and use.
Disclosure of Invention
In order to solve the above technical problems, a first aspect of the present invention provides a high performance acrylic sheet, which comprises: 82-95 parts of polymethyl methacrylate, 4-8 parts of organic nano microspheres, 5-10 parts of acrylate, 0.05-0.08 part of polymerized aluminum phosphate, 0.5-1 part of azodiisobutyronitrile, 3-7 parts of pigment and 2-5 parts of an auxiliary agent.
Polymethyl methacrylate
The polymethyl methacrylate is also called organic glass and is commonly used as a substitute of glass, but the polymethyl methacrylate has wider application range due to excellent performances of strong impact resistance, light dead weight and the like. Is widely applied to the aspects of sign lamp boxes and the like.
Preferably, the polymethyl methacrylate has an average molecular weight of 60000-150000.
More preferably, the polymethylmethacrylate comprises a first polymethylmethacrylate and a second polymethylmethacrylate. The mass ratio of the first polymethyl methacrylate to the second polymethyl methacrylate is (3-5): (5-8).
Preferably, the first polymethyl methacrylate has an average molecular weight of 65000-.
Preferably, the average molecular weight of the second poly (methyl methacrylate) is 120000-140000.
Organic nano-microsphere
Preferably, the organic nano-microspheres are compounded by organic silicon nano-microspheres and polystyrene cross-linked microspheres.
As a further preferable technical scheme, the compounding mass ratio of the organosilicon nano-microspheres to the polystyrene cross-linked microspheres is (0.5-1): 1.
preferably, the organosilicon nano-microsphere is cage-type polysilsesquioxane.
The polymethyl methacrylate diffusion layer can be adjusted by the organic nano-microspheres, so that the product has better light transmittance, haze and light diffusion effect. The organic nanometer microsphere is a fine transparent sphere, and the incident light is refracted by the light for multiple times, is uniformly dispersed, reduces the light loss, and plays a role in light uniformization and light transmission.
Acrylic esters
Preferably, the acrylate comprises ethyl methacrylate, 1, 4-butanediol diacrylate and propylene methacrylate. The mass ratio of the ethyl methacrylate to the 1, 4-butanediol diacrylate to the methacrylic ester is (5-7): (3-5): (0.1-0.3).
Polymeric aluminum phosphate
Preferably, the polymerized aluminum phosphate is modified aluminum tripolyphosphate.
Preferably, P in the modified aluminum tripolyphosphate 2 O 5 45-55% of Al 2 O 3 The content is 10-15%, and the content of ZnO is 15-25%.
Pigment
Preferably, the pigment is an organic natural pigment.
The pigment is derived from natural components, is nontoxic and excellent in tinting strength, and has good coloring effect and uniform dyeing.
Auxiliary agent
Preferably, the auxiliary agent comprises a light stabilizer, a heat stabilizer and a dispersing agent.
As a further preferred embodiment the light stabilizer: thermal stabilizer: the dispersant is prepared from the following components in percentage by mass (3-4): (2-3): (1-2) compounding.
Preferably, the light stabilizer comprises one or more of benzotriazole, salicylate, triazine, substituted acrylonitrile and o-hydroxybenzophenone.
As a further preferable technical scheme, the light stabilizer is a benzotriazole light stabilizer.
Preferably, the heat stabilizer comprises one or more of metal soaps, organic tin and phosphites.
In a further preferred embodiment, the heat stabilizer is a thiol-type organotin heat stabilizer.
Preferably, the dispersing agent comprises one or more of vinyl bis stearamide, ethylene copolymer, magnesium stearate and pentaerythritol stearate.
As a further preferred embodiment, the dispersant is an ethylene copolymer.
Preferably, the ethylene copolymer is an ethylene/vinyl acetate copolymer.
Preferably, the ethylene/vinyl acetate copolymer has a VAc content of 12 to 17 wt%, and the ethylene/vinyl acetate copolymer has a melt viscosity of 1200-1500mm at 120 ℃ 2 /s。
The auxiliary agent can reduce the preparation difficulty of the product on one hand, and can also help to improve the product performance, prolong the service cycle of the product and improve the product quality on the other hand.
Preferably, the mass ratio of the polymethyl methacrylate to the dispersant is (82-87): (0.7-0.9).
The second aspect of the invention provides a preparation method of a high-performance acrylic plate, which comprises the following steps: weighing the components according to the formula, respectively drying and uniformly mixing, putting the mixture into a double-screw extruder for injection molding to form a light diffusion plate, and carrying out deburring and polishing treatment on the light diffusion plate to obtain the high-performance acrylic plate.
Preferably, the temperature of the extruder is 200-300 ℃, and the rotating speed of the extruder is 30-50 r/min.
As a further preferable technical proposal, the temperature of the extruder is 230-280 ℃.
The high-performance acrylic plate prepared by selecting specific components and contents has good haze, extremely high light transmittance and good light diffusion effect; and the impact resistance and the heat resistance are also extremely excellent. The light source is supposed to be because the incident light passes through the organic nano-microspheres, and the difference between the refractive index of the material of the organic nano-microspheres and the refractive index of the base material is utilized to enlarge the light emitting surface, so that the point light source is changed into a surface light source, the light loss is reduced, and the effects of light homogenization and light transmission are achieved. In addition, the inorganic core composed of the silicon-oxygen skeleton alternatively connected by Si-O can inhibit the chain motion of polymer molecules to endow the material with good thermal stability and mechanical property. On the other hand, the selection of the specific dispersing agent and other auxiliary agents further assists the organic nano-microspheres to improve the light diffusion effect and improve the comprehensive performance.
Has the advantages that:
1) the high-performance acrylic plate prepared by the invention has good haze, extremely high light transmittance and good light diffusion effect.
2) The high-performance acrylic sheet prepared by the invention not only has good optical performance, but also has excellent mechanical properties, particularly impact resistance and heat resistance.
3) The high-performance acrylic sheet material and the preparation method thereof adopt organic natural pigments, are non-toxic and excellent in tinting strength, have consistent colors from inside to outside, and can be subjected to various mechanical and manual processing.
4) The high-performance acrylic sheet and the preparation method thereof have the advantages of simple manufacture, low cost and good continuity.
Detailed Description
The present invention will be specifically described below by way of examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.
In addition, the starting materials used are all commercially available, unless otherwise specified.
Examples
Example 1
A high-performance acrylic sheet comprises the following raw materials: according to parts by weight, 85 parts of polymethyl methacrylate, 6.5 parts of organic nano microspheres, 8 parts of acrylate, 0.07 part of polymerized aluminum phosphate, 0.7 part of azodiisobutyronitrile, 5.5 parts of pigment and 3 parts of auxiliary agent.
The polymethyl methacrylate includes a first polymethyl methacrylate and a second polymethyl methacrylate. The first polymethyl methacrylate has an average molecular weight of 70000. The second polymethyl methacrylate had an average molecular weight of 130000. The mass ratio of the first polymethyl methacrylate to the second polymethyl methacrylate is 4: 7. the polymethyl methacrylates are all available from Agilent Limited.
The organic nano-microspheres are compounded by organic silicon nano-microspheres and polystyrene cross-linked microspheres.
The compounding mass ratio of the organosilicon nano-microspheres to the polystyrene cross-linked microspheres is 0.8: 1.
the organic silicon nano-microspheres are cage-type polysilsesquioxane. The cage polysilsesquioxane is dodecaphenyl cage polysilsesquioxane (CAS number: 18923-59-6).
The organic silicon nano-microspheres are purchased from Xianqiyue organisms; the polystyrene cross-linked microspheres are available from Shanghai spectral vibration Biotech Co., Ltd.
The acrylate comprises ethyl methacrylate, 1, 4-butanediol diacrylate and propylene methacrylate. The mass ratio of the ethyl methacrylate to the 1, 4-butanediol diacrylate to the methacrylic ester is 6: 4: 0.2.
the polymerized aluminum phosphate is modified aluminum tripolyphosphate. P in modified aluminum tripolyphosphate 2 O 5 The content of Al is 48-52 percent 2 O 3 The content is 11-15%, and the content of ZnO is 18-22%. The polymerized aluminum phosphate was purchased from Shijiazhuan Xinshenghuai chemical Co., Ltd,the model is as follows: ModifiedEPMC-II.
The pigment is organic natural pigment. The organic natural pigment is curcumin.
The auxiliary agent comprises a light stabilizer, a heat stabilizer and a dispersing agent. The light stabilizer is: thermal stabilizer: the dispersant is prepared from the following components in percentage by mass 3: 3: 2, compounding.
The light stabilizer is a benzotriazole light stabilizer. The light stabilizer is 1,2, 3-benzotriazole.
The heat stabilizer is thiol type organotin heat stabilizer. The heat stabilizer is methyl tin mercaptide.
The dispersing agent is an ethylene copolymer. The ethylene copolymer is an ethylene/vinyl acetate copolymer. The ethylene/vinyl acetate copolymer has a VAc content of 14 wt% and a melt viscosity of 1300mm at 120 ℃ 2 And(s) in the presence of a catalyst. The dispersant is purchased from Shanghai Kenno New Material science and technology, Inc.
A preparation method of a high-performance acrylic sheet comprises the following steps: weighing the components according to the formula, respectively drying and uniformly mixing, putting the mixture into a double-screw extruder for injection molding to form a light diffusion plate, and carrying out deburring and polishing treatment on the light diffusion plate to obtain the high-performance acrylic plate.
The temperature of the first section, the second section and the third section of the extruder is 275 ℃, the temperature of the fourth section and the fifth section of the extruder is 235 ℃, and the rotating speed of the extruder is 52 r/min.
Example 2
A high-performance acrylic sheet comprises the following raw materials: 82 parts of polymethyl methacrylate, 4 parts of organic nano microspheres, 5 parts of acrylic ester, 0.05 part of polymerized aluminum phosphate, 0.5 part of azodiisobutyronitrile, 5 parts of pigment and 5 parts of auxiliary agent.
The polymethyl methacrylate includes a first polymethyl methacrylate and a second polymethyl methacrylate. The first polymethyl methacrylate had an average molecular weight of 70000. The average molecular weight of the second polymethyl methacrylate is 130000. The mass ratio of the first polymethyl methacrylate to the second polymethyl methacrylate is 4: 7. the polymethyl methacrylates are all available from Agilent, Inc.
The organic nano-microspheres are compounded by organic silicon nano-microspheres and polystyrene cross-linked microspheres.
The compounding mass ratio of the organosilicon nano-microspheres to the polystyrene cross-linked microspheres is 0.5: 1.
the organic silicon nano-microsphere is cage type polysilsesquioxane. The cage polysilsesquioxane is dodecaphenyl cage polysilsesquioxane (CAS number: 18923-59-6).
The organic silicon nano-microspheres are purchased from Xianqiyue organisms; the polystyrene cross-linked microspheres are available from Shanghai spectral vibration Biotech Co., Ltd.
The acrylate comprises ethyl methacrylate, 1, 4-butanediol diacrylate and propylene methacrylate. The mass ratio of the ethyl methacrylate to the 1, 4-butanediol diacrylate to the methacrylic ester is 6: 4: 0.2.
the polymerized aluminum phosphate is modified aluminum tripolyphosphate. P in modified aluminum tripolyphosphate 2 O 5 48-52% of Al 2 O 3 The content is 11-15%, and the content of ZnO is 18-22%. The polymerized aluminum phosphate is purchased from Shijiazhuan Xinsheng chemical Co., Ltd, and has the model number: ModifiedEPMC-II.
The pigment is organic natural pigment. The organic natural pigment is curcumin.
The auxiliary agent comprises a light stabilizer, a heat stabilizer and a dispersing agent. The light stabilizer is as follows: thermal stabilizer: the dispersing agent is prepared from the following components in percentage by mass 4: 2: 1, compounding.
The light stabilizer is a benzotriazole light stabilizer. The light stabilizer is 1,2, 3-benzotriazole.
The heat stabilizer is thiol type organotin heat stabilizer. The heat stabilizer is methyl tin mercaptide.
The dispersing agent is an ethylene copolymer. The ethylene copolymer is an ethylene/vinyl acetate copolymer. The ethylene/vinyl acetate copolymer has a VAc content of 14 wt.% and a melt viscosity at 120 ℃Degree of 1300mm 2 And(s) in the presence of a catalyst. The dispersant is available from shanghai knono new materials science co.
A preparation method of a high-performance acrylic sheet comprises the following steps: weighing the components according to the formula, respectively drying and uniformly mixing, putting the mixture into a double-screw extruder for injection molding to form a light diffusion plate, and carrying out deburring and polishing treatment on the light diffusion plate to obtain the high-performance acrylic plate.
The temperature of the first section, the second section and the third section of the extruder is 275 ℃, the temperature of the fourth section and the fifth section of the extruder is 235 ℃, and the rotating speed of the extruder is 52 r/min.
Example 3
A high-performance acrylic sheet comprises the following raw materials: the paint comprises, by weight, 88 parts of polymethyl methacrylate, 8 parts of organic nano microspheres, 10 parts of acrylic ester, 0.08 part of polymerized aluminum phosphate, 1 part of azodiisobutyronitrile, 7 parts of pigment and 4 parts of an auxiliary agent.
The polymethyl methacrylate includes a first polymethyl methacrylate and a second polymethyl methacrylate. The first polymethyl methacrylate had an average molecular weight of 70000. The second polymethyl methacrylate had an average molecular weight of 130000. The mass ratio of the first polymethyl methacrylate to the second polymethyl methacrylate is 4: 7. the polymethyl methacrylates are all available from Agilent, Inc.
The organic nano-microspheres are compounded by organic silicon nano-microspheres and polystyrene cross-linked microspheres.
The compounding mass ratio of the organosilicon nano-microspheres to the polystyrene cross-linked microspheres is 1: 1.
the organic silicon nano-microspheres are cage-type polysilsesquioxane. The cage polysilsesquioxane is dodecaphenyl cage polysilsesquioxane (CAS number: 18923-59-6).
The organic silicon nano-microspheres are purchased from Xianqiyue biology; the polystyrene cross-linked microspheres are available from Shanghai spectral vibration Biotech Co., Ltd.
The acrylate comprises ethyl methacrylate, 1, 4-butanediol diacrylate and propylene methacrylate. The mass ratio of the ethyl methacrylate to the 1, 4-butanediol diacrylate to the propylene methacrylate is 6: 4: 0.2.
the polymerized aluminum phosphate is modified aluminum tripolyphosphate. P in modified aluminum tripolyphosphate 2 O 5 The content of Al is 48-52 percent 2 O 3 The content is 11-15%, and the ZnO content is 18-22%. The polymerized aluminum phosphate is purchased from Shijiazhuan Xinsheng chemical Co., Ltd, and has the model number: ModifiedEPMC-II.
The pigment is organic natural pigment. The organic natural pigment is curcumin.
The auxiliary agent comprises a light stabilizer, a heat stabilizer and a dispersing agent. The light stabilizer is as follows: thermal stabilizer: the dispersing agent is prepared from the following components in percentage by mass 3: 4: 2, compounding.
The light stabilizer is a benzotriazole light stabilizer. The light stabilizer is 1,2, 3-benzotriazole.
The heat stabilizer is thiol type organotin heat stabilizer. The heat stabilizer is methyl tin mercaptide.
The dispersing agent is an ethylene copolymer. The ethylene copolymer is an ethylene/vinyl acetate copolymer. The ethylene/vinyl acetate copolymer has a VAc content of 14 wt.% and a melt viscosity of 1300mm at 120 ℃ 2 And s. The dispersant is purchased from Shanghai Kenno New Material science and technology, Inc.
A preparation method of a high-performance acrylic sheet comprises the following steps: weighing the components according to the formula, respectively drying and uniformly mixing, putting the mixture into a double-screw extruder for injection molding to form a light diffusion plate, and carrying out deburring and polishing treatment on the light diffusion plate to obtain the high-performance acrylic plate.
The temperature of the first section, the second section and the third section of the extruder is 275 ℃, the temperature of the fourth section and the fifth section of the extruder is 235 ℃, and the rotating speed of the extruder is 52 r/min.
Example 4
The specific embodiment of the high-performance acrylic sheet is the same as that in example 1, except that the heat stabilizer is dibutyltin laurate.
Comparative example 1
The specific implementation mode of the high-performance acrylic sheet is the same as that in example 1, except that the organic nano-microspheres are polystyrene cross-linked microspheres.
Comparative example 2
The specific implementation mode of the high-performance acrylic sheet is the same as that of the example 1, except that the dispersant is paraffin.
Performance testing
1. Optical performance, namely light transmittance and haze are measured by adopting an ASTMD1003 standard, selecting a C light source and using an integrating sphere light transmittance haze meter.
2. The impact strength adopts ISO6603-2 standard, and the falling ball impact strength of the product is tested.
3. The thermal deformation temperature adopts the standard of ASTM D648, and the testing equipment is a thermal deformation/Vicat testing machine.
TABLE 1
| Light transmittance (%) | Haze (%) | Impact strength (J/m) | Heat distortion temperature | |
| Example 1 | 97 | 89 | 32 | 122 |
| Example 2 | 96 | 87 | 30 | 120 |
| Example 3 | 95 | 88 | 30 | 121 |
| Example 4 | 93 | 85 | 27 | 116 |
| Comparative example 1 | 85 | 79 | 21 | 109 |
| Comparative example 2 | 88 | 83 | 24 | 118 |
The performance test results show that the high-performance acrylic sheet in the embodiments 1 to 4 of the invention has good haze, extremely high light transmittance and good light diffusion effect; and the impact resistance and the heat resistance are also extremely excellent. As can be seen from the comparison of example 1 and the comparative example, the optical properties and the mechanical properties of the optical fiber are effectively improved by the cooperation of the preferred components.
While the invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (10)
1. The utility model provides a high performance inferior gram force panel which characterized in that, the raw materials include: 82-95 parts of polymethyl methacrylate, 4-8 parts of organic nano microspheres, 5-10 parts of acrylate, 0.05-0.08 part of polymerized aluminum phosphate, 0.5-1 part of azodiisobutyronitrile, 3-7 parts of pigment and 2-5 parts of auxiliary agent.
2. The high performance acrylic sheet as claimed in claim 1, wherein the polymethyl methacrylate has an average molecular weight of 60000-150000.
3. The high-performance acrylic sheet according to claim 1, wherein the organic nano-microspheres are compounded of organosilicon nano-microspheres and polystyrene cross-linked microspheres.
4. The high-performance acrylic sheet according to claim 3, wherein the silicone nanospheres are cage polysilsesquioxane.
5. The high-performance acrylic sheet according to claim 1, wherein the additives comprise light stabilizer, heat stabilizer and dispersant.
6. The high-performance acrylic sheet according to claim 5, wherein the light stabilizer comprises one or more of benzotriazole, salicylate, triazine, substituted acrylonitrile, and o-hydroxybenzophenone.
7. The high-performance acrylic sheet according to claim 5, wherein the heat stabilizer comprises one or more of metal soaps, organic tin and phosphites.
8. The high-performance acrylic sheet according to claim 5, wherein the dispersant comprises one or more of vinyl bis-stearamide, ethylene copolymer, magnesium stearate and pentaerythritol stearate.
9. A method for producing a high performance acrylic sheet according to any one of claims 1 to 8, comprising the steps of: weighing the components according to the formula, respectively drying and uniformly mixing, putting the mixture into a double-screw extruder for injection molding to form a light diffusion plate, and carrying out deburring and polishing treatment on the light diffusion plate to obtain the high-performance acrylic plate.
10. The method as claimed in claim 9, wherein the temperature of the extruder is 200 ℃ to 300 ℃, and the rotation speed of the extruder is 30-50 r/min.
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