阅读说明：本技术 一种碎边涂料染色亚克力板及其加工工艺 (Broken-edge paint dyed acrylic plate and processing technology thereof ) 是由 林显飞 王冬兰 王建达 贾安隆 贾方瑞 于 2021-09-08 设计创作，主要内容包括：本发明公开了一种碎边涂料染色亚克力板及其加工工艺,包括以下步骤：提前将碎边图案刻在亚克力板上；将亚克力板的表面清理干净,将保护膜覆于无需染色的部分；使用涂料对待染色部位进行染色；加热并烘干,撕掉保护膜,得到碎边涂料染色亚克力板。本工艺通过将不需要染色的部位用保护膜包覆起来,然后进行分区染色,保护膜采用了粘性高、韧性高、防水性好的聚氯乙烯膜,可以快速撕除,不易断裂,且不会发生串色现象,对工人要求低,降低了生产成本,可以大规模生产应用。(The invention discloses a broken edge paint dyed acrylic plate and a processing technology thereof, comprising the following steps: the broken edge pattern is carved on the acrylic plate in advance; cleaning the surface of the acrylic plate, and covering a protective film on a part which does not need dyeing; dyeing the part to be dyed by using a coating; heating and drying, and tearing off the protective film to obtain the broken edge paint dyed acrylic plate. The process comprises the steps of coating the parts which do not need to be dyed with the protective film, and then carrying out partition dyeing, wherein the protective film is a polyvinyl chloride film with high viscosity, high toughness and good waterproofness, can be quickly torn off, is not easy to break, does not cause color cross phenomenon, has low requirement on workers, reduces the production cost, and can be produced and applied in a large scale.)

1. A processing technology of a broken-edge paint dyed acrylic plate is characterized by comprising the following steps: the processing technology comprises the following steps:

s1, preparing the coating:

according to the formula amount, adding barium sulfate, stearate, calcium carbonate, china clay and carbendazim into the sodium hexametaphosphate aqueous solution, uniformly mixing, sanding for 3-6 times, and filtering to obtain a pigment dispersion liquid;

adding the pigment dispersion liquid into a container, adding the polyvinyl alcohol solution, the pigment, the polydimethylsiloxane and the water while stirring, uniformly mixing, and filtering to obtain a coating;

s2, preparation of a protective film:

drying polyvinyl chloride, glass fiber and chlorinated polyethylene, uniformly mixing the polyvinyl chloride, the glass fiber, the chlorinated polyethylene, calcium carbonate and stearic acid, and extruding the mixture by a double-screw extruder to obtain modified polyvinyl chloride;

uniformly mixing polytetrafluoroethylene, mullite and carbon fiber, stirring for 5-10s, cooling for 4-6min, and repeating for 6-9 times to obtain a polytetrafluoroethylene composite material;

mixing 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane and octamethylcyclotetrasiloxane, adding trifluoromethanesulfonic acid, reacting at 60-80 deg.C for 5-7h, adding anhydrous sodium carbonate to adjust pH to 6-7, filtering, distilling under reduced pressure, dissolving with butyl acrylate, methyl methacrylate, acrylic acid, styrene, sodium dodecyl sulfate, ammonium allyloxypropyl alkylphenol polyether sulfate, and fatty alcohol-polyoxyethylene ether in deionized water, uniformly mixing, emulsifying for 0.5-1h, performing ultrasonic treatment for 10-30min to obtain a pre-emulsion, heating a part of the pre-emulsion to 60-80 ℃, adding ammonium persulfate, reacting for 10-30min, heating to 70-90 ℃, adding the rest of the pre-emulsion and ammonium persulfate, and reacting for 2-4h to obtain the modified polyacrylate;

according to the formula amount, mixing and stirring modified polyvinyl chloride, dioctyl phthalate, polyisobutylene, a polytetrafluoroethylene composite material, polymethylhydrosiloxane and modified polyacrylate uniformly;

banburying and plasticizing the mixed materials, and then performing calendaring molding to obtain a protective film;

s3, a process for dyeing acrylic plates by using broken edge paint, which comprises the following steps:

the broken edge pattern is carved on the acrylic plate in advance;

cleaning the surface of the acrylic plate, and covering a protective film on a part which does not need dyeing;

dyeing the part to be dyed by using a coating;

heating and drying, and tearing off the protective film to obtain the broken edge paint dyed acrylic plate.

2. The process for manufacturing a flapped color-dyed acrylic sheet according to claim 1, wherein the process comprises the steps of: the materials required for the coating in the step S1 include, by weight: 10-25 parts of barium sulfate, 0.5-3 parts of stearate, 10-20 parts of calcium carbonate, 40-60 parts of china clay, 0.1-0.5 part of carbendazim, 20-40 parts of pigment, 0.5-2 parts of sodium hexametaphosphate, 10-25 parts of polyvinyl alcohol, 10-20 parts of polydimethylsiloxane and 30-50 parts of water.

3. The process for manufacturing a flapped color-dyed acrylic sheet according to claim 1, wherein the process comprises the steps of: the materials required for the protective film in the step S2 include, by weight: 80-100 parts of modified polyvinyl chloride, 20-40 parts of dioctyl phthalate, 25-40 parts of polyisobutylene, 20-40 parts of polytetrafluoroethylene composite material, 50-80 parts of polymethylhydrosiloxane and 20-60 parts of modified polyacrylate.

4. The process for manufacturing a flapped color-dyed acrylic sheet according to claim 3, wherein the process comprises the steps of: the materials required by the modified polyvinyl chloride comprise, by weight: 80-100 parts of polyvinyl chloride, 10-20 parts of glass fiber, 5-10 parts of chlorinated polyethylene and 10-20 parts of calcium carbonate.

5. The process for manufacturing a flapped color-dyed acrylic sheet according to claim 3, wherein the process comprises the steps of: the polytetrafluoroethylene composite material comprises the following materials in parts by weight: 10-30 parts of polytetrafluoroethylene, 5-15 parts of mullite and 5-20 parts of carbon fiber.

6. The process for manufacturing a flapped color-dyed acrylic sheet according to claim 3, wherein the process comprises the steps of: the materials required by the modified polyacrylate comprise, by weight: 10-20 parts of 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane, 10-20 parts of octamethylcyclotetrasiloxane, 5-13 parts of trifluoromethanesulfonic acid, 15-30 parts of anhydrous sodium carbonate, 30-40 parts of butyl acrylate, 2-8 parts of methyl methacrylate, 5-10 parts of acrylic acid, 1-5 parts of styrene, 1-5 parts of sodium dodecyl sulfate, 1-5 parts of ammonium propyleneoxypropylalkylphenol polyether sulfate, 1-5 parts of fatty alcohol-polyoxyethylene ether and 6-15 parts of ammonium persulfate.

7. The broken-edge paint-dyed acrylic sheet and the acrylic sheet prepared by the processing technology thereof according to any one of claims 1 to 6.

Technical Field

The invention relates to the technical field of acrylic decoration, in particular to a broken-edge paint dyed acrylic plate and a processing technology thereof.

Background

Acrylic is also called specially treated organic glass, has the advantages of good light transmission, strong impact resistance, strong plasticity and the like, and is widely applied to the fields of buildings, advertisements, traffic and the like.

Along with the development of the times, people have higher and higher requirements on attractiveness, so that edge patterns are often carved on an acrylic plate upper plate and are subjected to regional dyeing, tinfoil paper is often adhered to a boundary to perform regional dyeing, and the tinfoil paper is poor in waterproof performance, so that the color mixing condition between different regions is often caused, the coloring effect is poor, and the production cost is improved.

Disclosure of Invention

The invention aims to provide a broken-edge paint-dyed acrylic plate and a processing technology thereof, and aims to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme:

a processing technology of a broken-edge paint dyed acrylic plate is characterized by comprising the following steps: the processing technology comprises the following steps:

s1, preparing the coating:

according to the formula amount, adding barium sulfate, stearate, calcium carbonate, china clay and carbendazim into the sodium hexametaphosphate aqueous solution, uniformly mixing, sanding for 3-6 times, and filtering to obtain a pigment dispersion liquid;

adding the pigment dispersion liquid into a container, adding the polyvinyl alcohol solution, the pigment, the polydimethylsiloxane and the water while stirring, uniformly mixing, and filtering to obtain a coating;

s2, preparation of a protective film:

drying polyvinyl chloride, glass fiber and chlorinated polyethylene, uniformly mixing the polyvinyl chloride, the glass fiber, the chlorinated polyethylene, calcium carbonate and stearic acid, and extruding the mixture by a double-screw extruder to obtain modified polyvinyl chloride;

polyvinyl chloride is general plastic, has flame retardance and wear resistance, but has insufficient toughness, is easy to decompose at low temperature, and glass fiber can enhance the mechanical property of the polyvinyl chloride but reduce the toughness.

Uniformly mixing polytetrafluoroethylene, mullite and carbon fiber, stirring for 5-10s, cooling for 4-6min, and repeating for 6-9 times to obtain a polytetrafluoroethylene composite material;

the polytetrafluoroethylene has excellent performance, stable chemical property and aging resistance, but poor wear resistance, and the mullite and the carbon fiber are added into the polytetrafluoroethylene as filling materials, so that the wear resistance and the heat resistance of the polytetrafluoroethylene are enhanced.

Mixing 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane and octamethylcyclotetrasiloxane, adding trifluoromethanesulfonic acid, reacting at 60-80 deg.C for 5-7h, adding anhydrous sodium carbonate to adjust pH to 6-7, filtering, distilling under reduced pressure, dissolving with butyl acrylate, methyl methacrylate, acrylic acid, styrene, sodium dodecyl sulfate, ammonium allyloxypropyl alkylphenol polyether sulfate, and fatty alcohol-polyoxyethylene ether in deionized water, uniformly mixing, emulsifying for 0.5-1h, performing ultrasonic treatment for 10-30min to obtain a pre-emulsion, heating a part of the pre-emulsion to 60-80 ℃, adding ammonium persulfate, reacting for 10-30min, heating to 70-90 ℃, adding the rest of the pre-emulsion and ammonium persulfate, and reacting for 2-4h to obtain the modified polyacrylate;

the polyacrylate has strong adhesive force, good transparency, strong oxidation resistance and low cost, is commonly used as an adhesive, but has poor weather resistance and aging resistance, is modified, enhances the heat resistance, water resistance and mechanical property of the polyacrylate, and also improves the flexibility and aging resistance.

According to the formula amount, mixing and stirring modified polyvinyl chloride, dioctyl phthalate, polyisobutylene, a polytetrafluoroethylene composite material, polymethylhydrosiloxane and modified polyacrylate uniformly;

banburying and plasticizing the mixed materials, and then performing calendaring molding to obtain a protective film;

the modified polyvinyl chloride has the characteristics of flame retardancy, acid and alkali resistance, wear resistance and the like, dioctyl phthalate is added to serve as a plasticizer to enhance the toughness of the protective film, the modified polyacrylate can form a film with good gloss and water resistance, the film is firm in adhesion and difficult to peel, and the film is flexible and elastic at room temperature, and the polymethyl hydrogen siloxane serving as a waterproof agent is added to the protective film, so that the color cross phenomenon cannot occur in the dyeing process.

S3, a process for dyeing acrylic plates by using broken edge paint, which comprises the following steps:

the broken edge pattern is carved on the acrylic plate in advance;

cleaning the surface of the acrylic plate, and covering a protective film on a part which does not need dyeing;

dyeing the part to be dyed by using a coating;

heating and drying, and tearing off the protective film to obtain the broken edge paint dyed acrylic plate.

As an optimization, the materials required for the coating in the step S1 include, by weight: 10-25 parts of barium sulfate, 0.5-3 parts of stearate, 10-20 parts of calcium carbonate, 40-60 parts of china clay, 0.1-0.5 part of carbendazim, 20-40 parts of pigment, 0.5-2 parts of sodium hexametaphosphate, 10-25 parts of polyvinyl alcohol, 10-20 parts of polydimethylsiloxane and 30-50 parts of water.

As an optimization, the materials required for the protective film in the step S2 include, by weight: 80-100 parts of modified polyvinyl chloride, 20-40 parts of dioctyl phthalate, 25-40 parts of polyisobutylene, 20-40 parts of polytetrafluoroethylene composite material, 50-80 parts of polymethylhydrosiloxane and 20-60 parts of modified polyacrylate.

Preferably, the materials required by the modified polyvinyl chloride comprise, by weight: 80-100 parts of polyvinyl chloride, 10-20 parts of glass fiber, 5-10 parts of chlorinated polyethylene and 10-20 parts of calcium carbonate.

As optimization, the polytetrafluoroethylene composite material comprises the following materials in parts by weight: 10-30 parts of polytetrafluoroethylene, 5-15 parts of mullite and 5-20 parts of carbon fiber.

Preferably, the materials required by the modified polyacrylate comprise, by weight: 10-20 parts of 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane, 10-20 parts of octamethylcyclotetrasiloxane, 5-13 parts of trifluoromethanesulfonic acid, 15-30 parts of anhydrous sodium carbonate, 30-40 parts of butyl acrylate, 2-8 parts of methyl methacrylate, 5-10 parts of acrylic acid, 1-5 parts of styrene, 1-5 parts of sodium dodecyl sulfate, 1-5 parts of ammonium propyleneoxypropylalkylphenol polyether sulfate, 1-5 parts of fatty alcohol-polyoxyethylene ether and 6-15 parts of ammonium persulfate.

As optimization, the acrylic plate is prepared according to the broken-edge paint dyed acrylic plate and the processing technology thereof.

Compared with the prior art, the invention has the following beneficial effects: according to the invention, the polyvinyl chloride film with high water resistance is prepared, the polyvinyl chloride film is coated on a part which does not need to be dyed, a pattern is carved on the part to be dyed in advance, and the part which needs to be dyed is dyed, so that the dyeing process can be completed.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: a processing technology of a broken-edge paint dyed acrylic plate is characterized by comprising the following steps: the processing technology comprises the following steps:

s1, preparing the coating:

according to the formula amount, adding barium sulfate, stearate, calcium carbonate, porcelain clay and carbendazim into the sodium hexametaphosphate aqueous solution, uniformly mixing, sanding for 3 times, and filtering to obtain a pigment dispersion liquid;

adding the pigment dispersion liquid into a container, adding the polyvinyl alcohol solution, the pigment, the polydimethylsiloxane and the water while stirring, uniformly mixing, and filtering to obtain a coating;

s2, preparation of a protective film:

drying polyvinyl chloride, glass fiber and chlorinated polyethylene, uniformly mixing the polyvinyl chloride, the glass fiber, the chlorinated polyethylene, calcium carbonate and stearic acid, and extruding the mixture by a double-screw extruder to obtain modified polyvinyl chloride;

uniformly mixing polytetrafluoroethylene, mullite and carbon fiber, stirring for 5s, cooling for 4min, and repeating for 6 times to obtain a polytetrafluoroethylene composite material;

uniformly mixing 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane and octamethylcyclotetrasiloxane, adding trifluoromethanesulfonic acid, reacting at 60-80 ℃ for 5 hours, adding anhydrous sodium carbonate to adjust the pH value to 6, filtering, distilling under reduced pressure, dissolving butyl acrylate, methyl methacrylate, acrylic acid, styrene, sodium dodecyl sulfate, ammonium allyloxypropyl alkylphenol polyether sulfate and fatty alcohol polyoxyethylene ether in deionized water, uniformly mixing, emulsifying for 0.5 hour, performing ultrasound for 10 minutes to obtain a pre-emulsion, heating a part of the pre-emulsion to 60 ℃, adding ammonium persulfate, reacting for 10 minutes, heating to 70 ℃, adding the rest of the pre-emulsion and ammonium persulfate, and reacting for 2 hours to obtain modified polyacrylate;

according to the formula amount, mixing and stirring modified polyvinyl chloride, dioctyl phthalate, polyisobutylene, a polytetrafluoroethylene composite material, polymethylhydrosiloxane and modified polyacrylate uniformly;

banburying and plasticizing the mixed materials, and then performing calendaring molding to obtain a protective film;

s3, a process for dyeing acrylic plates by using broken edge paint, which comprises the following steps:

the broken edge pattern is carved on the acrylic plate in advance;

cleaning the surface of the acrylic plate, and covering a protective film on a part which does not need dyeing;

dyeing the part to be dyed by using a coating;

heating and drying, and tearing off the protective film to obtain the broken edge paint dyed acrylic plate.

The materials required for the coating in the step S1 include, by weight: 10 parts of barium sulfate, 0.5 part of stearate, 10 parts of calcium carbonate, 40 parts of china clay, 0.1 part of carbendazim, 20 parts of pigment, 0.5 part of sodium hexametaphosphate, 10 parts of polyvinyl alcohol, 10 parts of polydimethylsiloxane and 30 parts of water.

The materials required for the protective film in the step S2 include, by weight: 80 parts of modified polyvinyl chloride, 20 parts of dioctyl phthalate, 25 parts of polyisobutylene, 20 parts of polytetrafluoroethylene composite material, 50 parts of polymethylhydrosiloxane and 20 parts of modified polyacrylate.

The materials required by the modified polyvinyl chloride comprise, by weight: 80 parts of polyvinyl chloride, 10 parts of glass fiber, 5 parts of chlorinated polyethylene and 10 parts of calcium carbonate.

The polytetrafluoroethylene composite material comprises the following materials in parts by weight: 10 parts of polytetrafluoroethylene, 5 parts of mullite and 5 parts of carbon fiber.

The materials required by the modified polyacrylate comprise, by weight: 10 parts of 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane, 10 parts of octamethylcyclotetrasiloxane, 5 parts of trifluoromethanesulfonic acid, 15 parts of anhydrous sodium carbonate, 30 parts of butyl acrylate, 2 parts of methyl methacrylate, 5 parts of acrylic acid, 1 part of styrene, 1 part of sodium dodecyl sulfate, 1 part of ammonium propyleneoxypropyl alkylphenol polyether sulfate, 1 part of fatty alcohol-polyoxyethylene ether and 6 parts of ammonium persulfate.

Example 2: a processing technology of a broken-edge paint dyed acrylic plate is characterized by comprising the following steps: the processing technology comprises the following steps:

s1, preparing the coating:

according to the formula amount, adding barium sulfate, stearate, calcium carbonate, porcelain clay and carbendazim into the sodium hexametaphosphate aqueous solution, uniformly mixing, sanding for 4 times, and filtering to obtain a pigment dispersion liquid;

adding the pigment dispersion liquid into a container, adding the polyvinyl alcohol solution, the pigment, the polydimethylsiloxane and the water while stirring, uniformly mixing, and filtering to obtain a coating;

s2, preparation of a protective film:

drying polyvinyl chloride, glass fiber and chlorinated polyethylene, uniformly mixing the polyvinyl chloride, the glass fiber, the chlorinated polyethylene, calcium carbonate and stearic acid, and extruding the mixture by a double-screw extruder to obtain modified polyvinyl chloride;

uniformly mixing polytetrafluoroethylene, mullite and carbon fiber, stirring for 6s, cooling for 4.5min, and repeating for 7 times to obtain a polytetrafluoroethylene composite material;

uniformly mixing 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane and octamethylcyclotetrasiloxane, adding trifluoromethanesulfonic acid, reacting for 5.5h at 70 ℃, adding anhydrous sodium carbonate to adjust the pH value to 6.3, filtering, distilling under reduced pressure, dissolving butyl acrylate, methyl methacrylate, acrylic acid, styrene, sodium dodecyl sulfate, ammonium allyloxypropyl alkylphenol polyether sulfate and fatty alcohol polyoxyethylene ether in deionized water, uniformly mixing, emulsifying for 0.7h, and performing ultrasonic treatment for 15min to obtain a pre-emulsion, heating a part of the pre-emulsion to 65 ℃, adding ammonium persulfate, reacting for 15min, heating to 75 ℃, adding the rest of the pre-emulsion and ammonium persulfate, and reacting for 2.5h to obtain modified polyacrylate;

according to the formula amount, mixing and stirring modified polyvinyl chloride, dioctyl phthalate, polyisobutylene, a polytetrafluoroethylene composite material, polymethylhydrosiloxane and modified polyacrylate uniformly;

banburying and plasticizing the mixed materials, and then performing calendaring molding to obtain a protective film;

s3, a process for dyeing acrylic plates by using broken edge paint, which comprises the following steps:

the broken edge pattern is carved on the acrylic plate in advance;

cleaning the surface of the acrylic plate, and covering a protective film on a part which does not need dyeing;

dyeing the part to be dyed by using a coating;

heating and drying, and tearing off the protective film to obtain the broken edge paint dyed acrylic plate.

The materials required for the coating in the step S1 include, by weight: 15 parts of barium sulfate, 1 part of stearate, 13 parts of calcium carbonate, 45 parts of porcelain clay, 0.2 part of carbendazim, 25 parts of pigment, 1 part of sodium hexametaphosphate, 15 parts of polyvinyl alcohol, 13 parts of polydimethylsiloxane and 35 parts of water.

The materials required for the protective film in the step S2 include, by weight: 85 parts of modified polyvinyl chloride, 25 parts of dioctyl phthalate, 30 parts of polyisobutylene, 25 parts of polytetrafluoroethylene composite material, 60 parts of polymethylhydrosiloxane and 35 parts of modified polyacrylate.

The materials required by the modified polyvinyl chloride comprise, by weight: 85 parts of polyvinyl chloride, 13 parts of glass fiber, 6 parts of chlorinated polyethylene and 13 parts of calcium carbonate.

The polytetrafluoroethylene composite material comprises the following materials in parts by weight: 15 parts of polytetrafluoroethylene, 8 parts of mullite and 10 parts of carbon fiber.

The materials required by the modified polyacrylate comprise, by weight: 13 parts of 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane, 13 parts of octamethylcyclotetrasiloxane, 8 parts of trifluoromethanesulfonic acid, 20 parts of anhydrous sodium carbonate, 33 parts of butyl acrylate, 4 parts of methyl methacrylate, 6 parts of acrylic acid, 2 parts of styrene, 3 parts of sodium dodecyl sulfate, 3 parts of ammonium propyleneoxypropyl alkylphenol polyether sulfate, 2 parts of fatty alcohol-polyoxyethylene ether and 8 parts of ammonium persulfate.

Example 3: a processing technology of a broken-edge paint dyed acrylic plate is characterized by comprising the following steps: the processing technology comprises the following steps:

s1, preparing the coating:

according to the formula amount, adding barium sulfate, stearate, calcium carbonate, porcelain clay and carbendazim into the sodium hexametaphosphate aqueous solution, uniformly mixing, sanding for 5 times, and filtering to obtain a pigment dispersion liquid;

adding the pigment dispersion liquid into a container, adding the polyvinyl alcohol solution, the pigment, the polydimethylsiloxane and the water while stirring, uniformly mixing, and filtering to obtain a coating;

s2, preparation of a protective film:

drying polyvinyl chloride, glass fiber and chlorinated polyethylene, uniformly mixing the polyvinyl chloride, the glass fiber, the chlorinated polyethylene, calcium carbonate and stearic acid, and extruding the mixture by a double-screw extruder to obtain modified polyvinyl chloride;

uniformly mixing polytetrafluoroethylene, mullite and carbon fiber, stirring for 8s, cooling for 5min, and repeating for 8 times to obtain a polytetrafluoroethylene composite material;

uniformly mixing 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane and octamethylcyclotetrasiloxane, adding trifluoromethanesulfonic acid, reacting at 60-80 ℃ for 6 hours, adding anhydrous sodium carbonate to adjust the pH value to 6.5, filtering, distilling under reduced pressure, dissolving butyl acrylate, methyl methacrylate, acrylic acid, styrene, sodium dodecyl sulfate, ammonium allyloxypropyl alkylphenol polyether sulfate and fatty alcohol polyoxyethylene ether in deionized water, uniformly mixing, emulsifying for 0.8 hour, performing ultrasonic treatment for 25 minutes to obtain a pre-emulsion, heating a part of the pre-emulsion to 70 ℃, adding ammonium persulfate, reacting for 25 minutes, heating to 80 ℃, adding the rest of the pre-emulsion and ammonium persulfate, and reacting for 3 hours to obtain modified polyacrylate;

according to the formula amount, mixing and stirring modified polyvinyl chloride, dioctyl phthalate, polyisobutylene, a polytetrafluoroethylene composite material, polymethylhydrosiloxane and modified polyacrylate uniformly;

banburying and plasticizing the mixed materials, and then performing calendaring molding to obtain a protective film;

s3, a process for dyeing acrylic plates by using broken edge paint, which comprises the following steps:

the broken edge pattern is carved on the acrylic plate in advance;

cleaning the surface of the acrylic plate, and covering a protective film on a part which does not need dyeing;

dyeing the part to be dyed by using a coating;

heating and drying, and tearing off the protective film to obtain the broken edge paint dyed acrylic plate.

The materials required for the coating in the step S1 include, by weight: 20 parts of barium sulfate, 2 parts of stearate, 15 parts of calcium carbonate, 55 parts of porcelain clay, 0.3 part of carbendazim, 30 parts of pigment, 1.5 parts of sodium hexametaphosphate, 20 parts of polyvinyl alcohol, 15 parts of polydimethylsiloxane and 45 parts of water.

The materials required for the protective film in the step S2 include, by weight: 90 parts of modified polyvinyl chloride, 35 parts of dioctyl phthalate, 35 parts of polyisobutylene, 35 parts of polytetrafluoroethylene composite material, 70 parts of polymethylhydrosiloxane and 50 parts of modified polyacrylate.

The materials required by the modified polyvinyl chloride comprise, by weight: 90 parts of polyvinyl chloride, 15 parts of glass fiber, 8 parts of chlorinated polyethylene and 15 parts of calcium carbonate.

The polytetrafluoroethylene composite material comprises the following materials in parts by weight: 25 parts of polytetrafluoroethylene, 10 parts of mullite and 15 parts of carbon fiber.

The materials required by the modified polyacrylate comprise, by weight: 15 parts of 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane, 15 parts of octamethylcyclotetrasiloxane, 10 parts of trifluoromethanesulfonic acid, 25 parts of anhydrous sodium carbonate, 35 parts of butyl acrylate, 6 parts of methyl methacrylate, 8 parts of acrylic acid, 4 parts of styrene, 4 parts of sodium dodecyl sulfate, 4 parts of ammonium propyleneoxypropyl alkylphenol polyether sulfate, 4 parts of fatty alcohol-polyoxyethylene ether and 10 parts of ammonium persulfate.

Example 4: a processing technology of a broken-edge paint dyed acrylic plate is characterized by comprising the following steps: the processing technology comprises the following steps:

s1, preparing the coating:

according to the formula amount, adding barium sulfate, stearate, calcium carbonate, porcelain clay and carbendazim into the sodium hexametaphosphate aqueous solution, uniformly mixing, sanding for 6 times, and filtering to obtain a pigment dispersion liquid;

adding the pigment dispersion liquid into a container, adding the polyvinyl alcohol solution, the pigment, the polydimethylsiloxane and the water while stirring, uniformly mixing, and filtering to obtain a coating;

s2, preparation of a protective film:

drying polyvinyl chloride, glass fiber and chlorinated polyethylene, uniformly mixing the polyvinyl chloride, the glass fiber, the chlorinated polyethylene, calcium carbonate and stearic acid, and extruding the mixture by a double-screw extruder to obtain modified polyvinyl chloride;

uniformly mixing polytetrafluoroethylene, mullite and carbon fiber, stirring for 10s, cooling for 6min, and repeating for 9 times to obtain a polytetrafluoroethylene composite material;

uniformly mixing 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane and octamethylcyclotetrasiloxane, adding trifluoromethanesulfonic acid, reacting at 80 ℃ for 7 hours, adding anhydrous sodium carbonate to adjust the pH value to 7, filtering, distilling under reduced pressure, dissolving butyl acrylate, methyl methacrylate, acrylic acid, styrene, sodium dodecyl sulfate, ammonium allyloxypropyl alkylphenol polyether sulfate and fatty alcohol polyoxyethylene ether in deionized water, uniformly mixing, emulsifying for 1 hour, performing ultrasound for 30 minutes to obtain a pre-emulsion, heating a part of the pre-emulsion to 80 ℃, adding ammonium persulfate, reacting for 30 minutes, heating to 90 ℃, adding the rest of the pre-emulsion and ammonium persulfate, and reacting for 4 hours to obtain modified polyacrylate;

according to the formula amount, mixing and stirring modified polyvinyl chloride, dioctyl phthalate, polyisobutylene, a polytetrafluoroethylene composite material, polymethylhydrosiloxane and modified polyacrylate uniformly;

banburying and plasticizing the mixed materials, and then performing calendaring molding to obtain a protective film;

s3, a process for dyeing acrylic plates by using broken edge paint, which comprises the following steps:

the broken edge pattern is carved on the acrylic plate in advance;

cleaning the surface of the acrylic plate, and covering a protective film on a part which does not need dyeing;

dyeing the part to be dyed by using a coating;

heating and drying, and tearing off the protective film to obtain the broken edge paint dyed acrylic plate.

The materials required for the coating in the step S1 include, by weight: 25 parts of barium sulfate, 3 parts of stearate, 20 parts of calcium carbonate, 60 parts of porcelain clay, 0.5 part of carbendazim, 40 parts of pigment, 2 parts of sodium hexametaphosphate, 25 parts of polyvinyl alcohol, 20 parts of polydimethylsiloxane and 50 parts of water.

The materials required for the protective film in the step S2 include, by weight: 100 parts of modified polyvinyl chloride, 40 parts of dioctyl phthalate, 40 parts of polyisobutylene, 40 parts of polytetrafluoroethylene composite material, 80 parts of polymethylhydrosiloxane and 60 parts of modified polyacrylate.

The materials required by the modified polyvinyl chloride comprise, by weight: 100 parts of polyvinyl chloride, 20 parts of glass fiber, 10 parts of chlorinated polyethylene and 20 parts of calcium carbonate.

The polytetrafluoroethylene composite material comprises the following materials in parts by weight: 30 parts of polytetrafluoroethylene, 15 parts of mullite and 20 parts of carbon fiber.

The materials required by the modified polyacrylate comprise, by weight: 20 parts of 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane, 20 parts of octamethylcyclotetrasiloxane, 13 parts of trifluoromethanesulfonic acid, 30 parts of anhydrous sodium carbonate, 40 parts of butyl acrylate, 8 parts of methyl methacrylate, 10 parts of acrylic acid, 5 parts of styrene, 5 parts of sodium dodecyl sulfate, 5 parts of ammonium propyleneoxypropyl alkylphenol polyether sulfate, 5 parts of fatty alcohol-polyoxyethylene ether and 15 parts of ammonium persulfate.

Comparative example

Comparative example 1 comparison with example 1, the protective film raw material was prepared without adding polymethylhydrosiloxane and modified polyacrylate, and the production process was the same as that of the present invention.

Comparative example 2: in comparison with example 1, dioctyl phthalate and polyisobutylene were not added to the protective film raw material, and the production process was the same as that of the present disclosure.

Experimental data

Examples 1 to 4, comparative example 1 and comparative example 2 were tested, and the specific test results are shown in the following table.

And (4) conclusion: through the dyeing processes of examples 1 to 4, the broken-edge acrylic plate can be quickly colored, the color is uniform, the color is not mixed, the prepared protective film has high water resistance, and the toughness and the viscosity are also excellent.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.