CN115044151A - High-pressure water-permeable acrylic rubber mold and preparation method thereof - Google Patents
High-pressure water-permeable acrylic rubber mold and preparation method thereof Download PDFInfo
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- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
- B28B1/261—Moulds therefor
- B28B1/262—Mould materials; Manufacture of moulds or parts thereof
- B28B1/263—Plastics
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
- C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof
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- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- 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
- C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
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- 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
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—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
- C08J2433/10—Homopolymers or copolymers of methacrylic acid esters
- C08J2433/12—Homopolymers or copolymers of methyl methacrylate
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Abstract
The application discloses a high-pressure permeable acrylic rubber mold and a preparation method thereof, wherein the high-pressure permeable acrylic rubber mold comprises a component A and a component B, and the component A comprises the following components in percentage by weight: 35-65% of PMMA powder, wherein dibenzoyl peroxide accounting for 0.1-3% of the mass of the component A is doped in the PMMA powder; 0.3 to 1.5 percent of defoaming agent; 0.3 to 1.5 percent of emulsifier; the balance of water; the component B comprises the following components in percentage by weight: MMA 20-50%; 10-30% of styrene; 0.1 to 0.5 percent of amine accelerant; 45-60% of filler. During preparation, the stirred component A is poured into the stirred component B, and then the curing reaction can be carried out. The acrylic rubber mold prepared by the method has good strength and water permeability.
Description
Technical Field
The application relates to the technical field of filter materials, in particular to a high-pressure water-permeable acrylic rubber mold and a preparation method thereof.
Background
Slip casting is a simple and convenient process in ceramic production, which usually requires the use of gypsum molds. The porous performance of the gypsum mould endows the gypsum mould with better water permeability, and the gypsum mould is still widely applied to forming processes such as grouting, spinning, rolling and the like at present. During the molding, the slurry is added into the inner cavity of a gypsum mold and certain pressure is applied, water can be dried through the gypsum mold, the slurry can be dried in the mold, and finally, the blank is demolded.
Although the gypsum mold has wide application in grouting forming, the gypsum mold is easy to deform and even drop slag after being pressurized for many times due to the lower performance of the compression strength and the bending strength of the gypsum mold, and the service life of the gypsum mold is short, so the gypsum mold does not meet the production requirements of the grouting forming at present.
Disclosure of Invention
In a first aspect, the present application provides a high pressure water permeable acrylic rubber mold.
The application provides a high pressure acrylic acid that permeates water glues mould adopts following technical scheme:
a high-pressure water-permeable acrylic rubber mold, which comprises a component A and a component B,
the component A comprises the following components in percentage by weight:
35-65% of PMMA powder, wherein dibenzoyl peroxide accounting for 0.1-3% of the mass of the component A is doped in the PMMA powder;
0.3 to 1.5 percent of defoaming agent;
0.3 to 1.5 percent of emulsifier;
the balance of water;
the component B comprises the following components in percentage by weight:
20-50% of acrylate monomer;
10-30% of styrene;
0.1 to 0.5 percent of amine accelerant;
45-60% of filler.
By adopting the technical scheme, PMMA is taken as a base material, an acrylate monomer and styrene are taken as reaction monomers, the reaction is carried out in water, the emulsifier can improve the distribution uniformity among particles, after the component A and the component B are mixed, the dibenzoyl peroxide initiator can initiate the reaction under the action of the amine promoter, the reaction of the acrylate monomer and the styrene can take PMMA powder doped with BPO as the base material, PMMA is taken as a similar cross-linking point to form a similar three-dimensional network structure, so that the polymerized acrylic rubber mold has higher strength, the filler does not participate in the reaction in the system, fine open pores can be formed in the acrylic rubber mold generated by the reaction, and after the reaction is finished, communicated pores can be formed on the surface and in the acrylic rubber mold through the volatilization of water, so that the prepared acrylic rubber mold has better strength, and also has better water permeability due to the existence of pores, so that the water-permeable gypsum mould can be used for preparing moulds to replace the traditional gypsum moulds.
Optionally, comprises an A component and a B component,
the component A comprises the following components in percentage by weight:
40-60% of PMMA powder, wherein dibenzoyl peroxide accounting for 0.5-2% of the weight of the component A is doped in the PMMA powder;
0.5 to 1 percent of defoaming agent;
0.5-1% of emulsifier;
the balance of water;
the component B comprises the following components in percentage by weight:
25-50% of acrylate monomer;
15-25% of styrene;
0.1 to 0.5 percent of amine accelerant;
45-60% of filler.
Optionally, the amine promoter is p-xylylenediamine.
By adopting the technical scheme, the p-xylylenediamine can reduce the generation temperature of the free radicals of the dibenzoyl peroxide and improve the reaction speed.
Optionally, the filler is ultrafine PMMA with an average particle size of 4-8 μm.
By adopting the technical scheme, the structure of the superfine PMMA is similar to that of the reaction monomer, better blending can be realized, the superfine PMMA is better distributed in a reaction system, and the compatibility with an acrylic rubber mold is better, so that the prepared pores are more uniform.
Optionally, the weight ratio of the component A to the component B is 1: 0.5-2.
Optionally, the emulsifier is a nonionic surfactant.
By adopting the technical scheme, the emulsifier has good dispersing effect on the monomers, promotes the uniform mixing of the oil phase and the water phase, and finally obtains a product with better performance.
Optionally, the acrylic monomer is one or a mixture of methyl methacrylate, ethyl acrylate and butyl acrylate.
In a second aspect, the application provides a preparation method of a high-pressure water-permeable acrylic rubber mold.
A preparation method of a high-pressure water-permeable acrylic rubber mold adopts the following technical scheme:
a preparation method of a high-pressure water-permeable acrylic rubber mold comprises the following steps; weighing each raw material component of the component A according to the specification, and uniformly mixing to obtain the component A; weighing each raw material component of the component B according to the specification, and stirring to obtain the component B; the A component is then poured into the B component and rapidly stirred, and then poured into a mold for molding.
By adopting the technical scheme, the component A is well mixed, the component B is well mixed, the component A is poured into the component B and is rapidly stirred, so that the component A can react with the component B, the reaction speed is high, and the obtained acrylic rubber mold has good strength and porosity and can be used for replacing the traditional gypsum mold.
Optionally, the stirring time of each raw material component of the component B is less than 1 minute.
By adopting the scheme, the situation that the superfine PMMA powder is completely dissolved to cause influence on the subsequent porosity can be avoided.
The principle of the invention is as follows: PMMA powder is used as a crosslinking point, and forms an acrylic rubber mold with a crosslinking structure with an acrylate monomer and styrene, so that a high-strength mold can be obtained; and the superfine PMMA powder is used as a pore-forming assistant, and the water phase and the oil phase are uniformly mixed through the emulsifier, so that the high through hole porosity and the proper pore size are formed after the water is volatilized after the molding.
In summary, the present application includes at least one of the following benefits:
1. the component A and the component B are mixed to enable the components to react quickly with each other, so that an acrylic rubber mold with high strength, high porosity and proper pore size is prepared, and the acrylic rubber mold can replace a gypsum mold and be used in a grouting forming process of ceramics and the like; 2. the ultrafine PMMA is added as a filler, so that the porosity of the whole acrylic rubber mold can be improved.
Detailed Description
Example 1
Preparing a component A; weighing 35kg of PMMA powder, doping 0.1kg of dibenzoyl peroxide in the PMMA powder, dissolving the PMMA powder and the dibenzoyl peroxide in an acetone solution, obtaining dibenzoyl peroxide-doped solid in the PMMA powder by a spray drying mode, adding 0.3kg of defoaming agent (selected from polydimethylsiloxane), 0.3kg of emulsifier (selected from Tween 80) and 64.3kg of water into a high-speed dispersion machine, uniformly stirring at the stirring temperature of below 15 ℃, and stirring for not less than 20 minutes.
Preparing a component B; 24.5kg of MMA monomer, 30kg of styrene monomer, 0.5kg of p-xylylenediamine and 45kg of ultrafine PMMA powder are weighed, the average particle size of the ultrafine PMMA powder is 4-8 mu m, the weighed raw materials are added into a high-speed dispersion machine to be rapidly stirred at 300r/min for not more than 1 minute so as to prevent the ultrafine PMMA from being completely dissolved, and the component B is obtained.
And quickly pouring the component A into the component B according to the weight ratio of 1:1, quickly stirring at the rotating speed of 300r/min, and pouring the mixed material of the component A and the component B into a mold within 30 seconds for curing and molding.
Example 2
Preparing a component A; weighing 40kg of PMMA powder, doping 0.5kg of dibenzoyl peroxide in the PMMA powder, dissolving the PMMA powder and the dibenzoyl peroxide in an acetone solution, obtaining dibenzoyl peroxide-doped solid in the PMMA powder by a spray drying mode, adding 0.5kg of defoaming agent (selected from polydimethylsiloxane), 0.5kg of emulsifier (selected from Tween 80) and 58.5kg of water into a high-speed dispersion machine, uniformly stirring, and stirring at the temperature of below 15 ℃ for not less than 20 minutes.
Preparing a component B; weighing 20kg of MMA monomer, 30kg of styrene monomer, 0.1kg of p-xylylenediamine and 49.9kg of superfine PMMA powder, wherein the average particle size of the superfine PMMA powder is 4-8 mu m, adding the weighed raw materials into a high-speed dispersion machine, and quickly stirring at 300r/min for not more than 1 minute so as to prevent the superfine PMMA from being completely dissolved, thereby obtaining a component B.
And (2) quickly pouring the component A into the component B according to the weight ratio of 1:1, quickly stirring at the rotating speed of 300r/min, and pouring the mixed material of the component A and the component B into a mold within 30 seconds to be cured into the mold.
Example 3
Preparing a component A; weighing 60kg of PMMA powder, wherein 2kg of dibenzoyl peroxide is doped in the PMMA powder, dissolving the PMMA powder and the dibenzoyl peroxide in an acetone solution, obtaining a dibenzoyl peroxide-doped solid in the PMMA powder by a spray drying mode, adding 1kg of defoaming agent (selected from polydimethylsiloxane), 1kg of emulsifier (selected from Tween 80) and 36kg of water into a high-speed dispersion machine, and uniformly stirring at the stirring temperature of below 15 ℃ for not less than 20 minutes.
Preparing a component B; 50kg of MMA monomer, 10kg of styrene monomer, 0.5kg of p-xylylenediamine and 39.5kg of superfine PMMA powder are weighed, the average particle size of the superfine PMMA powder is 4-8 mu m, the weighed raw materials are added into a high-speed dispersion machine to be rapidly stirred at 300r/min for not more than 1 minute so as to prevent the superfine PMMA from being completely dissolved, and the component B is obtained.
And quickly pouring the component A into the component B according to the weight ratio of 1:1, quickly stirring at the rotating speed of 300r/min, and pouring the mixed material of the component A and the component B into a mold within 30 seconds for curing and molding.
Example 4
Preparing a component A; weighing 65kg of PMMA powder, doping 3kg of dibenzoyl peroxide in the PMMA powder, dissolving the PMMA powder and the dibenzoyl peroxide in an acetone solution, obtaining dibenzoyl peroxide-doped solid in the PMMA powder by a spray drying mode, adding 1kg of defoaming agent (selected from polydimethylsiloxane), 1kg of emulsifier (selected from Tween 80) and 30kg of water into a high-speed dispersion machine, uniformly stirring, and stirring at the temperature of below 15 ℃ for not less than 20 minutes.
Preparing a component B; weighing 20kg of MMA monomer, 30kg of styrene monomer, 0.5kg of p-xylylenediamine and 49.5kg of superfine PMMA powder, wherein the average particle size of the superfine PMMA powder is 4-8 mu m, adding the weighed raw materials into a high-speed dispersion machine, and quickly stirring at 300r/min for not more than 1 minute so as to prevent the superfine PMMA from being completely dissolved, thereby obtaining a component B.
And quickly pouring the component A into the component B according to the weight ratio of 1:1, quickly stirring at the rotating speed of 300r/min, pouring the mixed material of the component A and the component B into a mold within 30 seconds for curing and molding, and not stirring any more during pouring into the mold for curing.
Example 5
Preparing a component A; weighing 45kg of PMMA powder, doping 0.5kg of dibenzoyl peroxide in the PMMA powder, dissolving the PMMA powder and the dibenzoyl peroxide in an acetone solution, obtaining dibenzoyl peroxide-doped solid in the PMMA powder by a spray drying mode, adding 0.5kg of defoaming agent (selected from polydimethylsiloxane), 0.5kg of emulsifier (selected from Tween 80) and 53.5kg of water into a high-speed dispersion machine, uniformly stirring, and stirring at the temperature of below 15 ℃ for not less than 20 minutes.
Preparing a component B; 25kg of MMA monomer, 19.5kg of styrene monomer, 0.5kg of p-xylylenediamine and 60kg of ultrafine PMMA powder are weighed, the average particle size of the ultrafine PMMA powder is 4-8 mu m, the weighed raw materials are added into a high-speed dispersion machine to be rapidly stirred at 300r/min for not more than 1 minute so as to prevent the ultrafine PMMA from being completely dissolved, and the component B is obtained.
And quickly pouring the component A into the component B according to the weight ratio of 1:1, quickly stirring at the rotating speed of 300r/min, pouring the mixed material of the component A and the component B into a mold within 30 seconds for curing and molding, and not stirring any more during pouring into the mold for curing.
Example 6
Preparing a component A; weighing 45kg of PMMA powder, doping 0.5kg of dibenzoyl peroxide in the PMMA powder, dissolving the PMMA powder and the dibenzoyl peroxide in an acetone solution, obtaining dibenzoyl peroxide-doped solid in the PMMA powder by a spray drying mode, adding 0.5kg of defoaming agent (selected from polydimethylsiloxane), 0.5kg of emulsifier (selected from Tween 80) and 53.5kg of water into a high-speed dispersion machine, uniformly stirring, and stirring at the temperature of below 15 ℃ for not less than 20 minutes.
Preparing a component B; 39.5kg of MMA monomer, 15kg of styrene monomer, 0.5kg of p-xylylenediamine and 45kg of ultrafine PMMA powder are weighed, the average particle size of the ultrafine PMMA powder is 4-8 mu m, the weighed raw materials are added into a high-speed dispersion machine to be rapidly stirred at 300r/min for not more than 1 minute so as to prevent the ultrafine PMMA from being completely dissolved, and the component B is obtained.
And quickly pouring the component A into the component B according to the weight ratio of 1:1, quickly stirring at the rotating speed of 300r/min, pouring the mixed material of the component A and the component B into a mold within 30 seconds for curing and molding, and not stirring any more during pouring into the mold for curing.
Example 7
Preparing a component A; weighing 50kg of PMMA powder, doping 0.5kg of dibenzoyl peroxide in the PMMA powder, dissolving the PMMA powder and the dibenzoyl peroxide in an acetone solution, obtaining dibenzoyl peroxide-doped solid in the PMMA powder by a spray drying mode, adding 0.5kg of defoaming agent (selected from polydimethylsiloxane), 0.5kg of emulsifier (selected from Tween 80) and 48.5kg of water into a high-speed dispersion machine, uniformly stirring, and stirring at the temperature of below 15 ℃ for not less than 20 minutes.
Preparing a component B; 34.5kg of MMA monomer, 20kg of styrene monomer, 0.5kg of p-xylylenediamine and 45kg of ultrafine PMMA powder are weighed, the average particle size of the ultrafine PMMA powder is 4-8 mu m, the weighed raw materials are added into a high-speed dispersion machine to be rapidly stirred at 300r/min for not more than 1 minute so as to prevent the ultrafine PMMA from being completely dissolved, and the component B is obtained.
And quickly pouring the component A into the component B according to the weight ratio of 1:1, quickly stirring at the rotating speed of 300r/min, pouring the mixed material of the component A and the component B into a mold within 30 seconds for curing and molding, and not stirring any more during pouring into the mold for curing.
Comparative example 1
This comparative example was prepared in the same manner as in example 7, except that no filler, ultrafine PMMA, was added to the raw material B component.
Comparative example 2
The comparative example and example 7 were prepared using the same process and starting materials except that no doped PMMA powder was added to the A component.
Comparative example 3
The comparative example and example 7 were prepared by the same method and the same raw materials except that the B component completely dissolved the ultra fine PMMA powder while mixing and stirring.
Comparative example 4
The comparative example was prepared in the same manner as in example 7, except that the dibenzoyl peroxide-doped PMMA powder in the component a was replaced with the same weight of undoped PMMA powder and dibenzoyl peroxide, and the mixture was directly fed into a high-speed disperser and mixed.
Performance testing compressive strength: making a 4cm × 4cm × 4cm square, and testing according to national standard GB/T17671-1999;
bending strength: making into blocks of 11.8cm × 15cm × 10cm, and testing with reference to national standard GB/T9341-2008;
porosity: making into 4cm × 4cm × 4cm square, cleaning with clear water, and drying at 50 deg.C to constant weight as M 1 Then putting the square blocks into clear water, and recording the water absorption to constant weight as M 2 Porosity [ (M) ] 2 -M 1 )/M 1 ]×100％。
The performance of examples 1-7 and comparative examples 1-4 were tested and the results are shown in table 1 below.
TABLE 1 Performance results for examples 1-7 and comparative examples 1-4
| Compressive strength (MPa) | Flexural Strength (MPa) | Porosity/% | |
| Example 1 | 32.3 | 15.3 | 34.1 |
| Example 2 | 33.2 | 16.1 | 32.3 |
| Example 3 | 33.6 | 16.8 | 28.2 |
| Example 4 | 32.9 | 15.7 | 27.2 |
| Example 5 | 34.1 | 16.6 | 33.5 |
| Example 6 | 33.8 | 15.9 | 32.9 |
| Example 7 | 34.4 | 17.1 | 34.5 |
| Comparative example 1 | 28.2 | 13.1 | 18.3 |
| Comparative example 2 | 22.1 | 10.2 | 32.2 |
| Comparative example 3 | 30.1 | 14.2 | 19.2 |
| Comparative example 4 | 24.4 | 10.1 | 28.3 |
As can be seen from comparative example 7 and comparative example 1, in the scheme of the present application, after the PMMA powder doped with BPO is used as the self-coagulation acrylic resin, as the reactive base material, MMA and styrene are used as the curing monomers, and the ultra-fine PMMA is used as the filler, and the component a and the component B are mixed together, the accelerator can promote the initiation effect of BPO, so that the MMA monomer and the styrene monomer can form a similar network structure by using the PMMA powder as a similar cross-linking point, the prepared acrylic rubber mold has good strength, and in the process, the ultra-fine PMMA powder and water are mixed in the polyacrylic rubber mold with the network structure, so that fine open pores can be formed, and after the water is volatilized, a porous structure is formed in the polyacrylic rubber mold.
When the high-pressure water-permeable acrylic adhesive mold disclosed by the embodiments 1-7 of the invention is applied to ceramic pressurization molding, the effect is better, the water permeability is fast, no ceramic slurry seeps out, the water permeability can be realized under lower pressure, and the mold is repeatedly used for more than 500 times, still has no deformation and no slag falling.
When the acrylic glue mould prepared in the comparative examples 1 to 4 is applied to ceramic pressure moulding, the comparative examples 1 and 3 have the defects of slow water permeation, incomplete water permeation and higher pressure requirement, so that the repeated use times of the mould are low. Comparative examples 2 and 4 have low strength, are easily changed, and have a small number of repeated uses.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The high-pressure permeable acrylic rubber mold is characterized by comprising a component A and a component B,
the component A comprises the following components in percentage by weight:
35-65% of PMMA powder, wherein dibenzoyl peroxide accounting for 0.1-3% of the mass of the component A is doped in the PMMA powder;
0.3 to 1.5 percent of defoaming agent;
0.3 to 1.5 percent of emulsifier;
the balance of water;
the component B comprises the following components in percentage by weight:
20-50% of acrylate monomer;
10-30% of styrene;
0.1 to 0.5 percent of amine accelerant;
45-60% of filler.
2. The high-pressure water-permeable acrylic rubber mold according to claim 1, which comprises a component A and a component B,
the component A comprises the following components in percentage by weight:
40-60% of PMMA powder, wherein dibenzoyl peroxide accounting for 0.5-2% of the mass of the component A is doped in the PMMA powder;
0.5 to 1 percent of defoaming agent;
0.5-1% of emulsifier;
the balance of water;
the component B comprises the following components in percentage by weight:
25-50% of acrylate monomer;
15-25% of styrene;
0.1 to 0.5 percent of amine accelerant;
45-60% of filler.
3. The high-pressure water-permeable acrylic rubber mold according to claim 2, characterized in that: the amine promoter is p-xylylenediamine.
4. The high-pressure water-permeable acrylic rubber mold according to claim 2, characterized in that: the filler is superfine PMMA with the average grain diameter of 4-8 mu m.
5. The high-pressure water-permeable acrylic rubber mold according to claim 2, characterized in that: the weight ratio of the component A to the component B is 1: 0.5-2.
6. The high-pressure water-permeable acrylic rubber mold according to claim 2, characterized in that: the emulsifier is a nonionic surfactant.
7. The high-pressure water-permeable acrylic rubber mold according to claim 2, characterized in that: the acrylic monomer is one or a mixture of methyl methacrylate, ethyl acrylate and butyl acrylate.
8. The method for preparing the high-pressure water-permeable acrylic rubber mold according to any one of claims 1 to 7, characterized by comprising the steps of;
weighing each raw material component of the component A according to the specification, and uniformly mixing to obtain the component A; weighing each raw material component of the component B according to the specification, and stirring to obtain the component B; the A component is then poured into the B component and rapidly stirred, and then poured into a mold for molding.
9. The high-pressure water-permeable acrylic rubber mold according to claim 7, wherein: the stirring time of each raw material component of the component B is less than 1 minute.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103849096A (en) * | 2014-02-21 | 2014-06-11 | 中科院广州化学有限公司南雄材料生产基地 | High-strength open-cell micro-porous plastic as well as preparation method and application thereof |
| CN103910821A (en) * | 2014-03-14 | 2014-07-09 | 中科院广州化学有限公司南雄材料生产基地 | A high-pressure-resistant water-permeable porous material and a preparation method thereof |
| CN107474193A (en) * | 2016-06-08 | 2017-12-15 | 深圳市启德环保科技有限公司 | A kind of modified porous air-permeative filter materials of macromolecule PMMA and preparation method thereof |
-
2022
- 2022-06-15 CN CN202210672200.6A patent/CN115044151A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103849096A (en) * | 2014-02-21 | 2014-06-11 | 中科院广州化学有限公司南雄材料生产基地 | High-strength open-cell micro-porous plastic as well as preparation method and application thereof |
| CN103910821A (en) * | 2014-03-14 | 2014-07-09 | 中科院广州化学有限公司南雄材料生产基地 | A high-pressure-resistant water-permeable porous material and a preparation method thereof |
| CN107474193A (en) * | 2016-06-08 | 2017-12-15 | 深圳市启德环保科技有限公司 | A kind of modified porous air-permeative filter materials of macromolecule PMMA and preparation method thereof |
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