CN116574294A - Surface strengthening process for cast acrylic plate - Google Patents
Surface strengthening process for cast acrylic plate Download PDFInfo
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- CN116574294A CN116574294A CN202310434035.5A CN202310434035A CN116574294A CN 116574294 A CN116574294 A CN 116574294A CN 202310434035 A CN202310434035 A CN 202310434035A CN 116574294 A CN116574294 A CN 116574294A
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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 138
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000005728 strengthening Methods 0.000 title claims abstract description 25
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims abstract description 14
- 238000009713 electroplating Methods 0.000 claims abstract description 12
- 239000003365 glass fiber Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 239000011651 chromium Substances 0.000 claims abstract description 7
- 239000011256 inorganic filler Substances 0.000 claims abstract description 6
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 6
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 5
- 239000000049 pigment Substances 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims description 30
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 15
- 238000005507 spraying Methods 0.000 claims description 11
- 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 description 10
- 238000005520 cutting process Methods 0.000 claims description 10
- 238000004806 packaging method and process Methods 0.000 claims description 10
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical compound CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 claims description 10
- 238000004080 punching Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 5
- 239000011268 mixed slurry Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- 238000009966 trimming Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 3
- 239000008116 calcium stearate Substances 0.000 claims description 3
- 235000013539 calcium stearate Nutrition 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052622 kaolinite Inorganic materials 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 3
- 238000005266 casting Methods 0.000 abstract description 9
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920005482 Oroglas® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/06—Coating with compositions not containing macromolecular substances
-
- C—CHEMISTRY; METALLURGY
- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
-
- C—CHEMISTRY; METALLURGY
- 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
- 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
-
- 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
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/041—Carbon nanotubes
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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 the technical field of plate surface treatment, in particular to a casting acrylic plate surface strengthening process; the cast acrylic plate consists of the following raw materials in parts by weight: 70 to 90 parts of methyl methacrylate, 3 to 10 parts of toughness reinforcing agent, 2 to 4.2 parts of accelerator, 0.3 to 0.8 part of reaction accelerator, 2 to 4 parts of pigment, 0.2 to 0.6 part of stripping auxiliary agent and 1.5 to 5.0 parts of inorganic filler; the toughness reinforcing agent not only effectively enhances the mechanical property of the acrylic plate, but also further improves the quality and the quality of the acrylic plate; the existence of the glass fiber layer not only effectively improves the mechanical property of the acrylic plate, but also effectively enhances the wear resistance of the acrylic plate, and prolongs the service life of the acrylic plate to a certain extent; and then electroplating is carried out on the surface of the acrylic plate, so that a chromium protective film is formed on the surface of the acrylic plate, and the wear resistance of the acrylic plate is further improved by matching with the use of the surface protective sticker, and the quality of the acrylic plate are effectively improved.
Description
Technical Field
The invention relates to the technical field of plate surface treatment, in particular to a casting acrylic plate surface strengthening process.
Background
The acrylic plate is actually an Organic Glass plate, which is formed by polymerizing methyl Methacrylate Monomer (MMA), namely polymethyl methacrylate (PMMA) plate Organic Glass, wherein the Organic Glass is obtained from an Organic Glass (namely Organic Glass) under the trade name of Oroglas, and acrylic is transliterated by English acrylic chemicals, and acrylic is a generic term of acrylic and methacrylic chemicals.
The methyl methacrylate monomer has the advantages of light weight, low cost, easy molding and the like. Its shaping method includes casting, injection moulding, machining and thermal moulding. In particular, the injection molding can be realized in mass production, the manufacturing process is simple, and the cost is low. Therefore, its application is becoming widespread, and it is widely used for instrument and meter parts, automobile lamps, optical lenses, transparent pipes, etc.
At present, although the commercial cast acrylic plate has certain mechanical properties and water resistance, the mechanical properties (such as wear resistance) are relatively insufficient, and the cast acrylic plate still needs to be further improved or improved. Based on the above, the present invention provides a surface strengthening process for casting an acrylic plate to solve the above-mentioned related technical problems.
Disclosure of Invention
The invention aims to provide a surface strengthening process for a cast acrylic plate, and the prepared acrylic plate not only has good mechanical property, but also has excellent wear resistance, prolongs the service life to a certain extent, and simultaneously effectively improves the quality and the quality.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a casting acrylic plate surface strengthening process comprises the following steps:
step one, accurately weighing 70 to 90 parts of methyl methacrylate, 3 to 10 parts of toughness reinforcing agent, 2 to 4.2 parts of accelerator, 0.3 to 0.8 part of reaction accelerator, 2 to 4 parts of pigment, 0.2 to 0.6 part of stripping auxiliary agent and 1.5 to 5.0 parts of inorganic filler according to parts by weight; preserving for standby;
step two, methyl methacrylate and an accelerator are put into mixing equipment, stirring equipment is started, the mixed materials in the mixing equipment are stirred for 40-60 min at the speed of 260-300 rpm, then a reaction accelerator and the rest raw materials are added into the mixing equipment, and stirring is continued for 5-10 min; the evenly stirred slurry is filtered through filter cloth with 250-300 meshes, and then is defoamed; after the deaeration is finished, injecting the obtained mixed slurry into a die, sequentially shaping, cooling, releasing and demolding to finally prepare an acrylic plate, and preserving for later use;
step three, placing the acrylic plate obtained in the step two in ultrasonic cleaning equipment, and cleaning the surface of the acrylic plate; then transferring the mixture into drying equipment for drying treatment; after drying, the acrylic plate is stored for standby;
fourthly, spraying 2-3 layers of glass fibers on the surface of the acrylic plate subjected to the drying treatment in the third step, fixing the acrylic plate subjected to the spraying treatment, and carrying out electroplating treatment on the surface of the acrylic plate through an electroplating process to form a chromium protective film on the surface of the acrylic plate;
fifthly, cutting the acrylic plate treated in the fourth step by using a cutting device; then polishing the corner positions of the cut acrylic plate by using trimming equipment to make the surface smooth;
step six, punching the acrylic plate processed in the step five by adopting punching equipment, then pasting protective sticker on the surface of the acrylic plate, and finally integrating and packaging the acrylic plate by using packaging equipment; finally, the surface strengthening process of the cast acrylic plate is completed.
Furthermore, the toughness reinforcing agent in the first step is any one of fumed silica or carbon nanotubes.
Further, the promoter in the first step is maleic anhydride.
Further, the reaction accelerator in the first step is compounded by azodiisobutyronitrile and diisopropyl peroxydicarbonate, and the weight ratio of the azodiisobutyronitrile to the diisopropyl peroxydicarbonate is 1:3.5 to 4.5.
Further, the pigment in the first step is any one of iron oxide black, titanium dioxide and iron oxide red.
Furthermore, the stripping auxiliary agent in the first step is any one of stearic acid, zinc stearate and calcium stearate.
Further, the vacuum degree is kept at-0.7 MPa during the defoaming treatment in the second step, and the defoaming time is set to be 12-18 min.
Further, the ultrasonic cleaning frequency in the ultrasonic cleaning in the step three is set to be 25-30 kHz, and the ultrasonic cleaning time is 15-30 min.
And in the third step, when the acrylic plate is subjected to drying treatment, the acrylic plate is placed in a hot air circulation drying oven and is subjected to heat treatment for 3-5 hours at the temperature of 75-80 ℃.
Furthermore, the inorganic filler in the first step is any one of nano kaolinite, nano bentonite and nano montmorillonite.
Compared with the prior art, the invention has the beneficial effects that:
in the invention, methyl methacrylate, a toughness reinforcing agent, an accelerator, a reaction accelerator, an inorganic filler and the like are used as raw materials, and a casting process is adopted to prepare the acrylic plate. The use of the toughness reinforcing agent not only effectively enhances the mechanical property of the acrylic plate, but also further improves the quality and the quality of the acrylic plate. In addition, the prepared acrylic plate is firstly subjected to ultrasonic cleaning, so that foreign matters adhered to the surface of the acrylic plate can be effectively cleaned, the subsequent spraying of glass fibers is facilitated, the existence of the glass fiber layer not only effectively improves the mechanical property of the acrylic plate, but also effectively enhances the wear resistance of the acrylic plate, and the service life of the acrylic plate is prolonged to a certain extent. And then electroplating is carried out on the surface of the acrylic plate, so that a chromium protective film is formed on the surface of the acrylic plate, and the wear resistance of the acrylic plate is further improved by matching with the use of the surface protective sticker, and the quality of the acrylic plate are effectively improved.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
A casting acrylic plate surface strengthening process comprises the following steps:
firstly, respectively and accurately weighing 70 parts of methyl methacrylate, 3 parts of gas-phase white carbon black, 2 parts of maleic anhydride, 0.3 part of reaction accelerator, 2 parts of iron oxide black, 0.2 part of stearic acid and 1.5 parts of nano kaolinite according to parts by weight; preserving for standby;
wherein the reaction accelerator is compounded by azodiisobutyronitrile and diisopropyl peroxydicarbonate, and the weight ratio of the azodiisobutyronitrile to the diisopropyl peroxydicarbonate is 1:3.5;
step two, methyl methacrylate and an accelerator are put into mixing equipment, stirring equipment is started, the mixed materials in the mixing equipment are stirred for 40min at the speed of 260rpm, then the reaction accelerator and the rest raw materials are added into the mixing equipment, and stirring is continued for 5min; the evenly stirred slurry is filtered through a filter cloth with 250 meshes, and then is defoamed; after the deaeration is finished, injecting the obtained mixed slurry into a die, sequentially shaping, cooling, releasing and demolding to finally prepare an acrylic plate, and preserving for later use; wherein, the vacuum degree is kept at-0.7 MPa during the defoaming treatment, and the defoaming time is set to be 12min;
step three, placing the acrylic plate obtained in the step two in ultrasonic cleaning equipment, and cleaning the surface of the acrylic plate; then transferring the mixture into drying equipment for drying treatment; after drying, the acrylic plate is stored for standby;
wherein the ultrasonic cleaning frequency is set to 25kHz and the ultrasonic cleaning time is 15min; when the acrylic plate is subjected to drying treatment, the acrylic plate is placed in a hot air circulation drying oven and is subjected to heat treatment for 3 hours at the temperature of 75 ℃;
fourthly, spraying 2 layers of glass fibers on the surface of the acrylic plate subjected to the drying treatment in the third step, fixing the acrylic plate subjected to the spraying treatment, and carrying out electroplating treatment on the surface of the acrylic plate through an electroplating process to form a chromium protective film on the surface of the acrylic plate;
fifthly, cutting the acrylic plate treated in the fourth step by using a cutting device; then polishing the corner positions of the cut acrylic plate by using trimming equipment to make the surface smooth;
step six, punching the acrylic plate processed in the step five by adopting punching equipment, then pasting protective sticker on the surface of the acrylic plate, and finally integrating and packaging the acrylic plate by using packaging equipment; finally, the surface strengthening process of the cast acrylic plate is completed.
Example 2
A casting acrylic plate surface strengthening process comprises the following steps:
firstly, accurately weighing 80 parts of methyl methacrylate, 6 parts of carbon nanotubes, 3.5 parts of maleic anhydride, 0.5 part of reaction accelerator, 3 parts of titanium dioxide, 0.4 part of zinc stearate and 3.5 parts of nano bentonite according to parts by weight; preserving for standby;
wherein the reaction accelerator is compounded by azodiisobutyronitrile and diisopropyl peroxydicarbonate, and the weight ratio of the azodiisobutyronitrile to the diisopropyl peroxydicarbonate is 1:4, a step of;
step two, methyl methacrylate and an accelerator are put into mixing equipment, stirring equipment is started, the mixed materials in the mixing equipment are stirred for 50min at the speed of 280rpm, then the reaction accelerator and the rest raw materials are added into the mixing equipment, and stirring is continued for 8min; the evenly stirred slurry is filtered by a 280-mesh filter cloth and then is defoamed; after the deaeration is finished, injecting the obtained mixed slurry into a die, sequentially shaping, cooling, releasing and demolding to finally prepare an acrylic plate, and preserving for later use; wherein, the vacuum degree is kept at-0.7 MPa during the defoaming treatment, and the defoaming time is set to 15min;
step three, placing the acrylic plate obtained in the step two in ultrasonic cleaning equipment, and cleaning the surface of the acrylic plate; then transferring the mixture into drying equipment for drying treatment; after drying, the acrylic plate is stored for standby;
wherein the ultrasonic cleaning frequency is set to 28kHz and the ultrasonic cleaning time is 25min; when the acrylic plate is subjected to drying treatment, the acrylic plate is placed in a hot air circulation drying oven and is subjected to heat treatment for 4 hours at 80 ℃;
fourthly, spraying 3 layers of glass fibers on the surface of the acrylic plate subjected to the drying treatment in the third step, fixing the acrylic plate subjected to the spraying treatment, and carrying out electroplating treatment on the surface of the acrylic plate through an electroplating process to form a chromium protective film on the surface of the acrylic plate;
fifthly, cutting the acrylic plate treated in the fourth step by using a cutting device; then polishing the corner positions of the cut acrylic plate by using trimming equipment to make the surface smooth;
step six, punching the acrylic plate processed in the step five by adopting punching equipment, then pasting protective sticker on the surface of the acrylic plate, and finally integrating and packaging the acrylic plate by using packaging equipment; finally, the surface strengthening process of the cast acrylic plate is completed.
Example 3
A casting acrylic plate surface strengthening process comprises the following steps:
firstly, accurately weighing 90 parts of methyl methacrylate, 10 parts of gas-phase white carbon black, 4.2 parts of maleic anhydride, 0.8 part of reaction accelerator, 4 parts of iron oxide red, 0.6 part of calcium stearate and 5.0 parts of nano montmorillonite according to parts by weight; preserving for standby; wherein the reaction accelerator is compounded by azodiisobutyronitrile and diisopropyl peroxydicarbonate, and the weight ratio of the azodiisobutyronitrile to the diisopropyl peroxydicarbonate is 1:4.5;
step two, methyl methacrylate and an accelerator are put into mixing equipment, stirring equipment is started, the mixed materials in the mixing equipment are stirred for 60 minutes at the speed of 300rpm, then a reaction accelerator and the rest raw materials are added into the mixing equipment, and stirring is continued for 10 minutes; the evenly stirred slurry is filtered through 300-mesh filter cloth, and then is defoamed; after the deaeration is finished, injecting the obtained mixed slurry into a die, sequentially shaping, cooling, releasing and demolding to finally prepare an acrylic plate, and preserving for later use; wherein, the vacuum degree is kept at-0.7 MPa during the defoaming treatment in the second step, and the defoaming time is set to 18min;
step three, placing the acrylic plate obtained in the step two in ultrasonic cleaning equipment, and cleaning the surface of the acrylic plate; then transferring the mixture into drying equipment for drying treatment; after drying, the acrylic plate is stored for standby; wherein the ultrasonic cleaning frequency is set to be 30kHz and the ultrasonic cleaning time is set to be 30min; when the acrylic plate is subjected to drying treatment, the acrylic plate is placed in a hot air circulation drying oven and is subjected to heat treatment for 5 hours at 80 ℃;
fourthly, spraying 3 layers of glass fibers on the surface of the acrylic plate subjected to the drying treatment in the third step, fixing the acrylic plate subjected to the spraying treatment, and carrying out electroplating treatment on the surface of the acrylic plate through an electroplating process to form a chromium protective film on the surface of the acrylic plate;
fifthly, cutting the acrylic plate treated in the fourth step by using a cutting device; then polishing the corner positions of the cut acrylic plate by using trimming equipment to make the surface smooth;
step six, punching the acrylic plate processed in the step five by adopting punching equipment, then pasting protective sticker on the surface of the acrylic plate, and finally integrating and packaging the acrylic plate by using packaging equipment; finally, the surface strengthening process of the cast acrylic plate is completed.
Comparative example 1 differs from example 1 in that: in the embodiment, the acrylic plate raw material does not contain gas-phase white carbon black.
Comparative example 2 differs from example 1 in that: the surface of the acrylic plate in this embodiment is not coated with glass fiber.
Comparative example 3 differs from example 1 in that: in this embodiment, the acrylic plate is not subjected to the plating treatment.
Performance test: the correlation properties of the acrylic plates treated in equal amounts of examples 1 to 3 and comparative examples 1 to 3 were examined, respectively, and the obtained experimental data were recorded in the following table:
the comparison and analysis of the related data in the table show that the prepared acrylic plate not only has good mechanical properties, but also has excellent wear resistance, the service life of the acrylic plate is prolonged to a certain extent, and the quality of the acrylic plate are effectively improved. Therefore, the cast acrylic plate treated by the method has wider market prospect and is more suitable for popularization.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. The surface strengthening process of the cast acrylic plate is characterized by comprising the following steps of:
step one, accurately weighing 70 to 90 parts of methyl methacrylate, 3 to 10 parts of toughness reinforcing agent, 2 to 4.2 parts of accelerator, 0.3 to 0.8 part of reaction accelerator, 2 to 4 parts of pigment, 0.2 to 0.6 part of stripping auxiliary agent and 1.5 to 5.0 parts of inorganic filler according to parts by weight; preserving for standby;
step two, methyl methacrylate and an accelerator are put into mixing equipment, stirring equipment is started, the mixed materials in the mixing equipment are stirred for 40-60 min at the speed of 260-300 rpm, then a reaction accelerator and the rest raw materials are added into the mixing equipment, and stirring is continued for 5-10 min; the evenly stirred slurry is filtered through filter cloth with 250-300 meshes, and then is defoamed; after the deaeration is finished, injecting the obtained mixed slurry into a die, sequentially shaping, cooling, releasing and demolding to finally prepare an acrylic plate, and preserving for later use;
step three, placing the acrylic plate obtained in the step two in ultrasonic cleaning equipment, and cleaning the surface of the acrylic plate; then transferring the mixture into drying equipment for drying treatment; after drying, the acrylic plate is stored for standby;
fourthly, spraying 2-3 layers of glass fibers on the surface of the acrylic plate subjected to the drying treatment in the third step, fixing the acrylic plate subjected to the spraying treatment, and carrying out electroplating treatment on the surface of the acrylic plate through an electroplating process to form a chromium protective film on the surface of the acrylic plate;
fifthly, cutting the acrylic plate treated in the fourth step by using a cutting device; then polishing the corner positions of the cut acrylic plate by using trimming equipment to make the surface smooth;
step six, punching the acrylic plate processed in the step five by adopting punching equipment, then pasting protective sticker on the surface of the acrylic plate, and finally integrating and packaging the acrylic plate by using packaging equipment; finally, the surface strengthening process of the cast acrylic plate is completed.
2. The process for strengthening the surface of a cast acrylic plate according to claim 1, wherein the process comprises the following steps: the toughness reinforcing agent in the first step is any one of gas-phase white carbon black or carbon nano tubes.
3. The process for strengthening the surface of a cast acrylic plate according to claim 1, wherein the process comprises the following steps: and the promoter in the first step is maleic anhydride.
4. The process for strengthening the surface of a cast acrylic plate according to claim 1, wherein the process comprises the following steps: the reaction accelerator in the first step is compounded by azodiisobutyronitrile and diisopropyl peroxydicarbonate, and the weight ratio of the azodiisobutyronitrile to the diisopropyl peroxydicarbonate is 1:3.5 to 4.5.
5. The process for strengthening the surface of a cast acrylic plate according to claim 1, wherein the process comprises the following steps: the pigment in the first step is any one of iron oxide black, titanium dioxide and iron oxide red.
6. The process for strengthening the surface of a cast acrylic plate according to claim 1, wherein the process comprises the following steps: the stripping auxiliary agent in the first step is any one of stearic acid, zinc stearate and calcium stearate.
7. The process for strengthening the surface of a cast acrylic plate according to claim 1, wherein the process comprises the following steps: and in the second step, the vacuum degree is kept at-0.7 MPa during the defoaming treatment, and the defoaming time is set to be 12-18 min.
8. The process for strengthening the surface of a cast acrylic plate according to claim 1, wherein the process comprises the following steps: the ultrasonic cleaning frequency in the ultrasonic cleaning in the step three is set to be 25-30 kHz, and the ultrasonic cleaning time is 15-30 min.
9. The process for strengthening the surface of a cast acrylic plate according to claim 1, wherein the process comprises the following steps: and in the third step, when the acrylic plate is subjected to drying treatment, the acrylic plate is placed in a hot air circulation drying oven and is subjected to heat treatment for 3-5 hours at the temperature of 75-80 ℃.
10. The process for strengthening the surface of a cast acrylic plate according to claim 1, wherein the process comprises the following steps: the inorganic filler in the first step is any one of nano kaolinite, nano bentonite and nano montmorillonite.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310434035.5A CN116574294A (en) | 2023-04-21 | 2023-04-21 | Surface strengthening process for cast acrylic plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310434035.5A CN116574294A (en) | 2023-04-21 | 2023-04-21 | Surface strengthening process for cast acrylic plate |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4344906A (en) * | 1978-08-24 | 1982-08-17 | Sumitomo Chemical Company, Limited | Process for producing glass fiber-reinforced transparent cast sheet |
| JPH0740450A (en) * | 1993-07-30 | 1995-02-10 | Dainippon Ink & Chem Inc | Method of reinforcement and molded item thereof |
| CN115433319A (en) * | 2022-08-09 | 2022-12-06 | 成都亚克力板业有限公司 | High-impact-resistance cast acrylic transparent plate and manufacturing method thereof |
-
2023
- 2023-04-21 CN CN202310434035.5A patent/CN116574294A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4344906A (en) * | 1978-08-24 | 1982-08-17 | Sumitomo Chemical Company, Limited | Process for producing glass fiber-reinforced transparent cast sheet |
| JPH0740450A (en) * | 1993-07-30 | 1995-02-10 | Dainippon Ink & Chem Inc | Method of reinforcement and molded item thereof |
| CN115433319A (en) * | 2022-08-09 | 2022-12-06 | 成都亚克力板业有限公司 | High-impact-resistance cast acrylic transparent plate and manufacturing method thereof |
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