CN106433100B - gas-liquid separation membrane, gas-liquid separation membrane support material compound and application - Google Patents
gas-liquid separation membrane, gas-liquid separation membrane support material compound and application Download PDFInfo
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- CN106433100B CN106433100B CN201610948086.XA CN201610948086A CN106433100B CN 106433100 B CN106433100 B CN 106433100B CN 201610948086 A CN201610948086 A CN 201610948086A CN 106433100 B CN106433100 B CN 106433100B
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- liquid separation
- separation membrane
- resin
- support material
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- 239000007788 liquid Substances 0.000 title claims abstract description 109
- 239000000463 material Substances 0.000 title claims abstract description 94
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- 239000002131 composite material Substances 0.000 claims description 36
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- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 27
- 238000001723 curing Methods 0.000 claims description 17
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- 230000000996 additive effect Effects 0.000 claims description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 10
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- 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 7
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 7
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- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 3
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- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
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- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 description 1
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- 125000001931 aliphatic group Chemical group 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 1
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- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
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- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- 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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
-
- 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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/29—Compounds containing one or more carbon-to-nitrogen double bonds
-
- 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
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- 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
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses gas-liquid separation membranes, a gas-liquid separation membrane support material compound and application thereof, wherein a raw material formula for preparing the gas-liquid separation membranes comprises, by weight, 20% -89.9% of resin base materials, 0.05% -10% of cross-linking agents, 0.05% -10% of breathable additives and 10% -60% of diluents.
Description
Technical Field
The invention relates to gas-liquid separation membranes, a gas-liquid separation membrane support material compound and application thereof, which are particularly applied to the field of manufacturing composite material parts by resin infusion, curing and molding, and include the manufacturing of composite material parts such as wind driven generator blades, airplane wing bodies, ship shells and the like.
Background
In the prior art, the gas-liquid separation membrane is a gas-liquid separation membrane manufactured by a PTEF microporous membrane, which is difficult and expensive to manufacture, and the production of the PTEF microporous membrane has problems of difficulty in quantitative control of stretching process, air permeability and pressure resistance, difficulty in manufacturing process, high cost, and the like.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide gas-liquid separation membranes.
The invention also provides gas-liquid separation membrane supporting material composites and application thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
gas-liquid separation membranes, wherein the raw material formula for preparing the gas-liquid separation membranes comprises the following components in percentage by weight:
wherein, the air permeable additive is or the combination of more of barium sulfate, calcium carbonate, white carbon black, talcum powder, pearl powder, titanium dioxide, diatomite, kaolin, starch and cellulose.
In the invention, the grain size of the air-permeable additive is 0.05-10 microns, preferably 0.1-2 microns, and more preferably 0.1-0.7 microns.
The resin base material is or the combination of more of epoxy resin, polyacrylic resin and polyurethane resin.
Preferably, the epoxy resin is or more of bisphenol A epoxy resin, bisphenol F epoxy resin, polyphenol glycidyl ether epoxy resin, aliphatic glycidyl ether epoxy resin, glycidyl ester epoxy resin, heterocyclic epoxy resin and mixed epoxy resin, etc., the polyacrylic resin is or more of epoxy modified acrylic resin and polyurethane modified acrylic resin, and the polyurethane resin comprises polyurethane resin produced by using TDI, MDI, HDI or IPDI as raw materials.
In the invention, the weight average molecular weight of the high molecular polymer in the resin base material is 10-250 ten thousand.
The cross-linking agent is or the combination of several of isocyanate cross-linking agent, aziridine cross-linking agent, polyethylene polyamine cross-linking agent and other multi-active functional group chemical substances.
The isocyanate crosslinking agent comprises or a mixture of of toluene diisocyanate, diphenylmethane diisocyanate, 1, 6-hexamethylene diisocyanate, dicyclohexylmethane diisocyanate and the like, the aziridine crosslinking agent comprises or a mixture of several of trimethylolpropane-tris [3- (2-methylaziridinyl) ] propionate, trimethylolpropane-tris (3-aziridinyl) propionate, pentaerythritol-tris (3-aziridinyl) propionate) and the like, and the polyethylene polyamine crosslinking agent comprises ethylene diamine, diethylene triamine, triethylene tetramine and tetraethylenepentamine or a mixture of several of ethylene diamine.
Such as or mixtures of more than one of such other multi-reactive functional chemical species as allyl glycidyl ether, diallyl phthalate, and the like.
The diluent is or more selected from acetone, xylene, Dimethylformamide (DMF), ethyl acetate, and tetrahydrofuran.
According to the present invention, various raw materials of the present invention are commercially available. These raw materials are all standard chemicals unless otherwise specified.
The components are mixed and stirred evenly to obtain liquid paste resin with the viscosity of 2000cps to 20000 cps.
Another technical schemes adopted by the invention are as follows:
kinds of gas-liquid separation membrane support material compound, wherein the gas-liquid separation membrane support material compound comprises a support base material and a gas-liquid separation membrane covered on the surface of the support base material, and the gas-liquid separation membrane is the gas-liquid separation membrane.
The gas-liquid separation membrane supporting material composite can be prepared by the following two preparation methods:
the preparation method comprises the following steps:
(1) coating the liquid paste resin on the surface of a substrate, curing, and peeling to obtain a gas-liquid separation membrane with micropores, wherein the thickness of the membrane is 0.005 mm-0.4 mm.
(2) Coating adhesive on the surface of a supporting base material, and compounding the gas-liquid separation membrane prepared in the step (1) on the surface of the supporting base material through the adhesive to obtain the gas-liquid separation membrane supporting material compound.
In the step (1), the gas-liquid separation membrane can be produced by a coating machine, and can be in a blade coating mode or a roll coating mode.
In the step (1), the substrate may be a release film, such as a PET silicone oil coating film with a thickness of 0.01-0.05 mm.
In the step (1), the curing can be thermal curing or curing by using water to extract and transfer an organic solvent. If DMF solvent is used as the diluent, water extraction is used to transfer the organic solvent for solidification.
In the step (2), the compounding method specifically comprises the following steps: the method comprises the steps of gluing a hot melt adhesive, a pressure sensitive adhesive and the like on the surface of a support base material by using a glue scraping and spraying process, and then compounding a gas-liquid separation membrane on the surface of the support base material under a hot-pressing condition to obtain a gas-liquid separation membrane support material compound.
In the step (2), the support base material is synthetic fiber cloth, which can be nylon, terylene, chinlon, polypropylene fiber and other synthetic fiber cloth, and the gram weight is 40-200 g/square meter.
The gas-liquid separation membrane supporting material compound prepared by the preparation method is formed by covering a gas-liquid separation membrane on the surface of a supporting base material through an adhesive.
The second preparation method comprises the following steps: the liquid paste resin can be directly coated on the surface of a supporting base material in a blade coating or roll coating mode, and the gas-liquid separation membrane supporting material compound is obtained after curing and forming.
The support base material is synthetic fiber cloth, can be synthetic fiber cloth such as nylon, dacron, chinlon, polypropylene fiber and the like, and the gram weight is 40-200 g/square meter.
The curing can be thermal curing or can be curing by using water to extract and transfer an organic solvent. If DMF solvent is used as the diluent, water extraction is used to transfer the organic solvent for solidification.
In the invention, the coating weight of the liquid paste resin is 5-40 g/square meter.
The water pressure resistance of the gas-liquid separation membrane support material composite obtained by the invention is more than 1.0 kilogram-force/square centimeter, and the air permeation rate can reach 10000mL/Min.M under the pressure of 1atm2The above.
The invention adopts another technical proposal that:
application of the composite of the gas-liquid separation membrane supporting material in the field of manufacturing composite parts by resin infusion, curing and molding, including manufacturing composite parts such as wind driven generator blades, airplane wing bodies, ship shells and the like.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages:
the gas-liquid separation membrane has the advantages of cheap raw materials and simple preparation process.
The gas-liquid separation membrane provided by the invention has the advantages that the prepared gas-liquid separation membrane has the performances of higher hydraulic pressure resistance and higher ventilation rate and is accurately and stably controlled by easily adjusting the formula and the coating amount.
The gas-liquid separation membrane support material compound is used in the field of manufacturing composite material parts by resin infusion, curing and molding, and can well ensure the quality of cured finished products.
Drawings
FIG. 1 is a schematic view of resin composite infusion (before infusion).
Fig. 2 is a schematic view of resin composite infusion (in-infusion).
FIG. 3 is a schematic view of the resin composite material being poured (pouring is completed).
Wherein: 1. a vacuum exhaust tube; 2. a vacuum film; 3. ventilating cotton; 4. a gas-liquid separation membrane support material composite; 5. release cloth; 6. sealing the adhesive tape; 7. a fibrous reinforcing material; 8. a mold base; 9. a resin inlet pipe; 10. and (4) a flow guide net.
Fig. 4 is a schematic structural view of a test apparatus for testing the hydraulic pressure resistance and the gas permeation rate of the gas-liquid separation membrane support material composite of the present invention.
The device comprises a cylinder body 100, a cylinder body 100a, a cylinder body 100b, a cylinder body flange 200, a th sealing cover 300, a second sealing cover 400, an inlet pipe 500, an outlet pipe 600, a pressure gauge 700, a flowmeter 800, a sealing gasket 900 and a second sealing gasket.
Detailed Description
The gas-liquid separation membrane is formed in such a way that a polymer dissolved in a solution tends to form micropores in the process of solvent volatilization or migration out of a system to solidify and form a membrane, if solid particles with specific quantity and diameter are added, the solvent volatilization or migration is easier to occur on the solid and resin interfaces, so the size and the quantity of the micropores are controlled, shows that the larger the solid particle adding amount is, the more micropores are, the larger the gas permeation rate is, the smaller the solid particle diameter is, the smaller the micropore diameter is, and the larger the liquid pressure resistance is, and the nano or sub-nano-grade solid particles are added into the formula of the resin composition, so that the gas-liquid separation membrane has the performances of high liquid pressure resistance and large gas permeation rate.
The gas-liquid separation membrane supporting material compound is used for manufacturing a composite material part through resin infusion, curing and molding, and can eliminate problems that in the infusion process, when resin is sucked into a vacuum cavity formed by a mold and a vacuum film from vacuum, the resin directly reaches and fills a vacuum suction pipe to cause premature infusion to be finished, the problems can cause bubbles or virtual voids to be formed in the cavity, and part quality defects are caused, as shown in figures 1-3, in the figures, a vacuum suction pipe 1 is connected with a vacuum pump to suck out air, a vacuum film 2, a mold base 8 and a sealing adhesive tape 6 form the vacuum cavity, breathable cotton 3 maintains smooth air suction, a gas-liquid separation membrane supporting material compound 4 allows air to pass through to prevent resin from passing through, release cloth 5 plays a demolding role, the sealing adhesive tape 6 plays a sealing role, a fiber reinforcing material 7 enhances the strength of the composite material part, a resin inlet pipe 9, a resin inlet and a flow guide net 10 allow the resin to pass through, and reduce infusion resistance.
Before pouring, when the space wrapped by the vacuum membrane, the mold and the sealant is divided into two cavities by the gas-liquid separation membrane supporting material compound, the cavity where the fiber reinforced material is located is a pouring area and needs to be filled with the resin entering from the resin inlet pipe 9, the area where the breathable cotton is located is a vacuum pumping area, along with pouring of the resin from the point A to the point B, residual air continuously passes through the gas-liquid separation membrane supporting material compound and is pumped away through a vacuum pipe until all areas of the gas-liquid separation membrane supporting material compound or object are covered by the resin, and the pouring stops, so that all gas in the pouring area can be fully pumped away step by step, the generation of virtual air or bubbles is prevented to the maximum extent, and the quality of a cured product is ensured.
The invention is described in further detail with reference to the figures and the specific embodiments.
Example 1
This example provides gas-liquid separation membranes, which were produced by the following method:
the resin base material is polyurethane modified acrylic resin TKM-980, and the manufacturer is Yade resin New Material Co., Ltd, Dongguan; the cross-linking agent is analytically pure toluene diisocyanate; the air permeable additive is calcium carbonate micropowder with D50 at 700 nm, and is produced by Lida ultramicro industry (Suzhou) Co; the diluent was analytically pure acetone. Stirring and dispersing the four components for 0.5 hour by a stirrer at the rotating speed of 500 revolutions per minute, and then stirring and dispersing for 2 hours at the rotating speed of 200 revolutions per minute to obtain a liquid pasty resin composition with the viscosity of 6500cps, wherein the stirrer is a high-speed disperser IGF2.2 produced by Aida mechanical Co. The liquid paste resin composition was coated on a silicone release film having a thickness of 20um, which was a small-sized coating tester for AT-TB experiments manufactured by Shandong Anniemait instruments Co., Ltd, AT a coating rate of 30 g/m using a coating machine of 5 m/min, which was a product of Shanghai Ruizi industries Co., Ltd. And (3) drying the film in an oven at 150 ℃ for 20 minutes, and peeling the cured film from the silicone oil release film to obtain the gas-liquid separation film A. The oven is 9203A type electric heating constant temperature blast drying oven of Shanghai essence macro experimental facilities Limited.
Example 2
This example provides gas-liquid separation membranes, which were produced by the following method:
the resin base material is polyurethane resin HDW-20, and the manufacturer is Shanghai Congo chemical company; the cross-linking agent is analytically pure toluene diisocyanate; the air permeable additive is kaolin micropowder D50 at 500 nm, and the manufacturer is inner Mongolia Kaolin powder GmbH; the diluent was analytically pure DMF. Stirring and dispersing the four components for 0.5 hour by a stirrer at the rotating speed of 500 rpm, and stirring and dispersing for 2 hours at the rotating speed of 200 rpm to obtain a liquid pasty resin composition with the viscosity of 6200 cps. The liquid paste resin composition was applied to a silicone release film having a thickness of 20 μm at a coating amount of 25 g/m by a coater, and after drying at 150 ℃ for 20 minutes in an oven, the cured film was peeled off from the silicone release film to obtain a gas-liquid separation film B, and other equipment and materials were the same as in example 1.
Example 3
This example provides gas-liquid separation membranes, which were produced by the following method:
the resin base material is polyurethane resin HDW-20; the cross-linking agent is analytically pure toluene diisocyanate; the air permeable additive is kaolin micropowder with D50 at 500 nm; the diluent was analytically pure DMF. Stirring and dispersing the four components for 0.5 hour by a stirrer at the rotating speed of 500 revolutions per minute, and then stirring and dispersing for 2 hours at the rotating speed of 200 revolutions per minute to obtain the liquid pasty resin composition with the viscosity of 4000 cps. The liquid paste resin composition is coated on a silicone oil release film with the thickness of 20um by a coating machine according to the coating amount of 25 g/square meter, the coated smear is placed in water with the temperature of 50 ℃ for soaking for 25 minutes, then the smeared smear is taken out and dried in an oven at the temperature of 110 ℃, a cured film is peeled off from the silicone oil release film, and a gas-liquid separation film C is obtained, and other equipment and materials are the same as those in the example 1.
Example 4
This example provides gas-liquid separation membrane support material composites, which were manufactured by the following method:
coating a hot melt adhesive on 100 g/square meter of polyester fabric by a coating machine at 180 ℃ and 20 m/min with a coating weight of 10 g/square meter to obtain the polyester fabric with adhesive, wherein the hot melt adhesive is an HM-28B-T hot melt adhesive produced by Lijiada science and technology Limited in Fushan City, and the coating machine is an RT110 hot melt adhesive coating machine produced by Shanghai Huadi machinery Limited. The gas-liquid separation membrane A, B, C obtained in examples 1 to 3 was applied to the above-mentioned polyester fabric with a tape at a temperature of 160 ℃ and a deposition rate of 3 m/min by a laminator, and the three samples 1#, 2#, and 3# were obtained as a gas-liquid separation membrane-supporting material composite, wherein the laminator was a TY90042R precision laminator from wuxi-tening automation co.
Example 5
This example provides gas-liquid separation membrane support material composites, which were manufactured by the following method:
the resin base material is polyurethane resin HDW-20; the cross-linking agent is analytically pure toluene diisocyanate; the air permeable additive is kaolin micropowder with D50 at 500 nm; the diluent was analytically pure DMF. Stirring and dispersing the four components for 0.5 hour by a stirrer at the rotating speed of 500 revolutions per minute, and then stirring and dispersing for 2 hours at the rotating speed of 200 revolutions per minute to obtain the liquid pasty resin composition with the viscosity of 4000 cps. The liquid paste resin composition was applied to a Dacron cloth having a grammage of 120 g, produced by Weijiang textile weaving machine, Wujiang, using a coater, at a coating amount of 25 g/m, and the coated sheet was placed in water at a temperature of 50 ℃ for 25 minutes, taken out and dried in an oven at 150 ℃ to obtain a gas-liquid separation membrane-supporting material composite No. 4, and the other devices and materials were the same as those of example 1.
Example 6
This example provides gas-liquid separation membrane support material composites, which were manufactured by the following method:
the resin base material is polyurethane resin HDW-20; the cross-linking agent is analytically pure toluene diisocyanate; the air-permeable additive is calcium carbonate micro powder with D50 being 700 nanometers; the diluent was analytically pure DMF. Stirring and dispersing the four components for 0.5 hour by a stirrer at the rotating speed of 500 rpm, and then stirring and dispersing for 2 hours at the rotating speed of 200 rpm to obtain the liquid pasty resin composition with the viscosity of 3500 cps. The liquid paste resin composition was applied to a Dacron cloth having a grammage of 120 g at a coating amount of 25 g/m by using a coater, and the coated sheet was dried at 110 ℃ in an oven at a temperature of 150 ℃ to obtain a gas-liquid separation membrane-supporting material composite No. 5, and other devices and materials were the same as those in example 1.
Example 7
This example provides gas-liquid separation membrane support material composites, which were manufactured by the following method:
the resin base material is polyurethane modified acrylic resin TKM-980, and the cross-linking agent is analytically pure diphenylmethane diisocyanate; the air-permeable additive is a mixture of calcium carbonate micropowder with D50 at 700 nm and kaolin micropowder with D50 at 600 nm, and the ratio is 1: 1; the diluent was analytically pure acetone. Stirring and dispersing the four components for 0.5 hour by a stirrer at the rotating speed of 500 rpm, and then stirring and dispersing for 2 hours at the rotating speed of 200 rpm to obtain the liquid pasty resin composition with the viscosity of 3500 cps. The liquid paste resin composition was applied to a Dacron cloth having a grammage of 120 g at a coating amount of 25 g/m by using a coater, and the coated sheet was dried at 110 ℃ in an oven at a temperature of 150 ℃ to obtain a gas-liquid separation membrane-supporting material composite No. 6, and other devices and materials were the same as those of example 1.
The liquid pressure resistance and gas permeation rate performance tests were performed on the gas-liquid separation membrane support material composite in the above examples, and the test results are shown in table 1.
As shown in FIG. 4, a testing device for testing hydraulic pressure resistance and air permeation rate comprises a cylinder 100 having an inner cavity, a -th sealing cover 200 and a second sealing cover 300 fixedly connected to both ends of the cylinder 100 respectively and used for sealing the inner cavity, an inlet pipe 400 connected to the -th sealing cover 200 for fluid medium circulation and an outlet pipe 500 connected to the second sealing cover 300 for fluid medium circulation, wherein a lumen of the inlet pipe 400 and a lumen of the outlet pipe 500 are respectively communicated with the inner cavity of the cylinder 100, and a gas-liquid separation membrane support material composite 4 is disposed between the -th sealing cover 200 and the cylinder 100. the cylinder 100 is a transparent plastic cylinder made of transparent organic glass, for example.
The cylinder 100 comprises a cylinder body 100a and cylinder flanges 100b arranged at two ends of the cylinder body 100a, an th sealing cover 200 is fixedly connected with the cylinder flange 100b at the end of through bolts, a second sealing cover 300 is fixedly connected with the cylinder flange 100b at the end of through bolts, th sealing gaskets 800 are respectively arranged between the th sealing cover 200 and the gas-liquid separation membrane supporting material compound 4, between the gas-liquid separation membrane supporting material compound 4 and the cylinder flange 100b, and second sealing gaskets 900 are respectively arranged between the second sealing cover 300 and the cylinder flange 100 b.
The test set-up also includes a pressure gauge 600 connected to the inlet tube 400 and a flow meter 700 connected to the outlet tube 500.
The hydraulic resistance is tested by the following method:
selecting water as a fluid medium, installing the th sealing gasket 800/the gas-liquid separation membrane support material composite 4/the th sealing gasket 800 between the th sealing cover 200 and the barrel 100, connecting the inlet pipe 400 to a high-pressure water pump with a pressure regulating valve, starting the water pump, slowly regulating the pressure regulating valve to gradually increase the water pressure, stopping the pressure increase when water drops appear on the surface of the gas-liquid separation membrane support material composite 4, recording the reading of a pressure gauge, namely the water pressure resistance value of the gas-liquid separation membrane support material composite 4, and carrying out the test at the temperature of 25 ℃.
The air permeability rate was measured using the following method:
the method comprises the steps of selecting air as a fluid medium, installing an th sealing gasket 800/gas-liquid separation membrane support material composite 4/ th sealing gasket 800 between a th sealing cover 200 and a cylinder flange 100b, adding water which is not more than 30% of the height of a cylinder body 100a from a port of the cylinder flange 100b connected with a second sealing cover 300, placing the second sealing gasket 900, then tightly fastening and sealing the second sealing cover 300 and the cylinder flange 100b, connecting an inlet pipe 400 to compressed air with a pressure regulating valve, starting the pressure regulating valve of the compressed air, regulating the pressure gauge to gradually rise to a set value, such as 1atm, and reading a flow rate reading of a flowmeter, namely the air permeability rate of the gas-liquid separation membrane support material composite 4.
Table 1 shows the results of performance tests of the gas-liquid separation membrane support material composite
Remarking: the liquid in the hydraulic pressure resistance test is distilled water; the gas in the ventilation rate test is air, and the test pressure is 1ATM
Example 8
Application of gas-liquid separation membrane support material compound on speed boat shell
Sequentially spreading materials of each layer such as a vacuum membrane 2 (a nylon thin film with the thickness of 0.06 mm), breathable cotton 3 (common cotton), a gas-liquid separation membrane supporting material compound 4, release cloth 5 (nylon 66 grey cloth with the thickness of 105 g/square meter), a multilayer fiber reinforced material 7 (glass fiber) with the thickness of 5cm, release cloth 5 (nylon 66 grey cloth with the thickness of 105 g/square meter), a diversion net 10 (a PE net with the thickness of 2mm and the hole of 3mmx3 mm) and the like on the forming surface of a glass fiber reinforced plastic mould from top to bottom, inserting the diversion net 10 layer into a resin inlet pipe 9, inserting a vacuum exhaust tube 1 into the 3 layers of the breathable cotton, connecting a vacuum pump, sealing the edges of the materials of all layers and the edges of the pipelines by using a sealing adhesive tape 6, connecting a resin inlet tube 9 into a resin storage tank, starting the vacuum pump, and enabling the epoxy resin added with the curing agent to flow into the vacuum cavity through the pipelines and gradually fill all areas of the glass fibers. After 2 hours of curing, the upper and lower layers of release cloth and all the auxiliary materials on the outer layers are peeled off to obtain the glass fiber reinforced plastic speed boat shell, and after detection, the shell has no bubbles, cracks or non-infiltration areas and good quality.
Example 9
Application of gas-liquid separation membrane support material compound on extension blade
Sequentially spreading materials of each layer such as a vacuum membrane 2 (a nylon thin film with the thickness of 0.06 mm), breathable cotton 3 (common cotton), a gas-liquid separation membrane supporting material compound 4, release cloth 5 (nylon 66 grey cloth with the thickness of 85 g/square meter), a multilayer fiber reinforced material 7 (glass fiber) with the thickness of 2-10cm, release cloth 5 (nylon 66 grey cloth with the thickness of 85 g/square meter), a diversion net 10 (a PE net with the thickness of 3mm and holes of 4mmx4 mm) and the like on the forming surface of a glass fiber reinforced plastic mould from top to bottom, inserting the diversion net 10 layer into a resin inlet pipe 9, inserting a vacuum exhaust tube 1 into the 3 layers of the breathable cotton, connecting a vacuum pump, sealing the edges of the materials of all layers and the edges of the pipelines by using a sealing adhesive tape 6, connecting a resin inlet tube 9 into a resin storage tank, starting the vacuum pump, adding curing agent epoxy resin, flowing into a vacuum cavity through the pipelines, and gradually filling all areas of the glass fiber. After 3 hours of curing, stripping the upper and lower layers of release fabric 5 and all the auxiliary materials on the outer layer to obtain the glass fiber reinforced plastic blade, and after detection, the blade has no bubbles, cracks or non-infiltration areas and good quality.
Example 10
Application of gas-liquid separation membrane support material compound on aeromodelling airplane wing
Sequentially spreading materials of each layer such as a vacuum membrane 2 (a nylon thin film with the thickness of 0.06 mm), breathable cotton 3 (common cotton), a gas-liquid separation membrane supporting material compound 4, release cloth 5 (nylon 66 grey cloth with the thickness of 85 g/square meter), a multilayer fiber reinforced material 7 (glass fiber) with the thickness of 1-3cm, release cloth 5 (nylon 66 grey cloth with the thickness of 85 g/square meter), a diversion net 10 (a PE net with the thickness of 3mm and holes of 4mmx4 mm) and the like on the forming surface of a glass fiber reinforced plastic mould from top to bottom, inserting the diversion net 10 layer into a resin inlet pipe 9, inserting a vacuum exhaust tube 1 into the 3 layers of the breathable cotton, connecting a vacuum pump, sealing the edges of the materials of all layers and the edges of the pipelines by using a sealing adhesive tape 6, connecting a resin inlet tube 9 into a resin storage tank, starting the vacuum pump, adding curing agent epoxy resin, flowing into a vacuum cavity through the pipelines, and gradually filling all areas of the glass fiber. After 3 hours of curing, the upper and lower layers of release cloth 5 and all the auxiliary materials on the outer layer are peeled off to obtain the glass fiber reinforced plastic blade, and after detection, the airplane wing has no bubbles, cracks or non-infiltration areas and good quality.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (7)
- The gas-liquid separation membranes are characterized in that a raw material formula for preparing the gas-liquid separation membranes comprises the following components in percentage by weight:20% -89.9% of resin base stock;0.05% -10% of a cross-linking agent;0.05% -10% of a breathable additive;10% -60% of a diluent;the breathable additive is or a combination of multiple materials of barium sulfate, calcium carbonate, talcum powder, pearl powder, diatomite, kaolin, starch and cellulose, the particle size of the breathable additive is 0.1-2 micrometers, and the resin base material is or a combination of multiple materials of polyacrylic resin and polyurethane resin.
- 2. The gas-liquid separation membrane according to claim 1, wherein the diluent is or more selected from acetone, xylene, dimethylformamide, ethyl acetate and tetrahydrofuran.
- 3, A gas-liquid separation membrane-supporting material composite, characterized in that the gas-liquid separation membrane-supporting material composite comprises a supporting substrate and a gas-liquid separation membrane covering the surface of the supporting substrate, and the gas-liquid separation membrane is the gas-liquid separation membrane according to any of claims 1-2.
- 4. The gas-liquid separation membrane support material composite according to claim 3, characterized in that: the thickness of the gas-liquid separation membrane is 0.005 mm-0.4 mm.
- 5. The gas-liquid separation membrane support material composite according to claim 3, characterized in that: the supporting base material is synthetic fiber cloth.
- 6. The gas-liquid separation membrane support material composite according to claim 5, characterized in that: the synthetic fiber cloth is nylon, terylene, chinlon or polypropylene.
- 7, use of the gas-liquid separation membrane support material composite according to claim 3 in the field of resin infusion, curing and molding for manufacturing composite material parts.
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| CN1401700A (en) * | 2002-10-17 | 2003-03-12 | 天津工业大学 | Polyurethane/inorganic particle blended composite film and mfg. method thereof |
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| CN1401700A (en) * | 2002-10-17 | 2003-03-12 | 天津工业大学 | Polyurethane/inorganic particle blended composite film and mfg. method thereof |
| CN102274695A (en) * | 2010-06-08 | 2011-12-14 | 天津工业大学 | Preparation method for separation film |
| CN104174305A (en) * | 2013-09-02 | 2014-12-03 | 天津森诺过滤技术有限公司 | Biodegradable separation membrane |
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