CN113087857B - Multi-performance coating filter material and preparation method thereof - Google Patents
Multi-performance coating filter material and preparation method thereof Download PDFInfo
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- CN113087857B CN113087857B CN202110375604.4A CN202110375604A CN113087857B CN 113087857 B CN113087857 B CN 113087857B CN 202110375604 A CN202110375604 A CN 202110375604A CN 113087857 B CN113087857 B CN 113087857B
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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
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/04—Organic material, e.g. cellulose, cotton
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0471—Surface coating material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
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Abstract
The invention relates to a polymerized latex coating, which adopts the following raw materials in parts by weight: 20-21g of itaconic acid, 360g of ethyl acrylate 350-. Taking 80g of the polymerized emulsion, adding 17g of water and 3g of thickening agent, uniformly stirring and thickening, filtering and discharging to obtain the product. The coating film material can improve the filtering efficiency of the filtering material while keeping the original technical performance by coating the film on the surface of the air outlet side.
Description
Technical Field
The invention discloses a multi-performance coating filter material and a preparation method thereof, and particularly discloses a processing method of a fiber layer filter material and a polymerized latex coating, wherein the filter material meets the application requirements of products in the environments of automobiles, chemical engineering, medicines, fresh air and the like.
Background
The DE type air filter material main body of the composite fiber filter cotton is superposed with PP superfine fiber melt-blown cotton and a high-density membrane to form a composite material-produced bag-type or plate-type filter, the PP superfine fiber melt-blown cotton improves the filtering effect of the filter medium by a stagnating method, the requirement on the use environment is high, and the use period is short.
Aiming at the defects of composite materials, the density and the thickness of a fiber layer filter material are generally increased to improve the filtration level, the weight per square meter is increased, the cost is increased, and the level is difficult to exceed the level of F7. The current market for increasing the filtration grade of polymeric latex coatings for DE type air filtration materials is not seen, nor is there any disclosure of the related art.
Disclosure of Invention
The invention aims to provide a multi-performance coating filter material and a preparation method thereof, wherein the multi-performance coating filter material and a DE type filter material form an integrated material, and the uniformity of the filter aperture is increased on the basis of keeping the performance advantage of the DE type filter material, so that the realization of the standard air permeability sub-high efficiency level is ensured.
The technical scheme adopted by the invention is as follows:
a multi-performance coating filter material is prepared from the following raw materials in parts by weight:
20-21g of itaconic acid, 350-360g of ethyl acrylate, 71-73g of allyl polyoxyalkyl epoxy ether, 10-10.5g of ethyl-2 methyl 1,3 dioxopentyl-4-acrylate, 42-44g of methyl methacrylate, 2-2.3g of fatty alcohol polyoxyethylene ether XL-90, 1.9-2.1g of ammonium persulfate and 600g of deionized water 550-modified, and mixing to obtain a polymerization emulsion. Taking 80g of the polymerized emulsion, adding 17g of water and 3g of thickening agent, uniformly stirring and thickening, filtering and discharging to obtain the product.
The preparation method comprises the following steps:
(1) emulsification: adding 20-21g of itaconic acid, 360g of ethyl acrylate 350-.
(2) Initiating polymerization: taking 20 percent of the total amount of the emulsion, namely 209-222.16g, adding the emulsion into a reaction kettle, heating to 80-82 ℃, adding a mixed solution of 1.27g of initiator ammonium persulfate and 50g of water, initiating, dripping 836-888.64g of the rest emulsion at the temperature, dripping 0.63-0.83g of ammonium persulfate and 50g of water at the same time, finishing dripping 1-2 hours, keeping the temperature for 2-3 hours at 80-82 ℃, then cooling to 30-40 ℃, and adjusting the pH value to 7 +/-0.5 by using ammonia water;
(3) compounding: and taking 80g of the polymerized emulsion, adding 17g of water and 3g of thickening agent, uniformly stirring and thickening, filtering and discharging to obtain the product.
The prepared product is coated on a DE type filtering material, after drying, the coating film material is a film and DE type filtering material integrated material, on the basis of keeping the performance advantage of the DE type filtering material, the consistency of the filtering aperture is increased, and the novel filtering material of standard air permeability sub-high efficiency level is ensured to be realized.
The invention has the advantages that:
1. the coating film material is coated on the surface of the air outlet side, so that the filtering efficiency of the filtering material is improved while the original technical performance is kept.
2. The coating film material adopts high-temperature bonded poly-porous film pulp, forms a film with soft and smooth hand feeling, friction resistance and air permeability standard on the surface of a product, and simultaneously avoids the peeling and falling of fibers on the surface of a filter material.
3. The filtering mechanism of the fiber filtering material is that the fibers with different deniers are randomly arranged to form three-dimensional staggered distribution, and the uniformity of the airflow channels with the geometric apertures formed among the fibers is poor. The coating film is of a molecular polymerization structure, has good uniformity, is uniformly arranged on the surface of the fiber filtering material, has regular and uniform pore diameter arrangement, and is uniform and stable when air flow passes through the filtering material.
4. The coating film material can be added with color paste in the polymerization latex, so that the problem that the grade of white products on the surface of the DE type filtering material is difficult to distinguish is solved, the grade of the products is distinguished by utilizing the color, and the coating film material is convenient and simple to connect with international general colors.
5. The coating membrane material is a material integrating the membrane and the DE type filtering material, and on the basis of keeping the performance advantage of the DE type filtering material, the consistency of the filtering aperture is increased, so that the novel filtering material of standard air permeability sub-high level is ensured.
Detailed Description
The present invention will be described in further detail with reference to examples.
A multi-performance coating filter material is prepared from the following raw materials in parts by weight: 20-21 parts of itaconic acid, 350-360 parts of ethyl acrylate, 71-73 parts of allyl polyoxyalkyl epoxy ether, 10-10.5 parts of ethyl-2 methyl-1, 3 dioxygen amyl-4-acrylate, 42-44 parts of methyl methacrylate, 2-2.3 parts of fatty alcohol polyoxyethylene ether XL-90 and 550-600 parts of deionized water for emulsification; 1.9-2.1 initiating and polymerizing ammonium persulfate; after cooling, according to the requirements of different air permeability, adding water and a thickener FS-300H produced by Liaoning sidereal fine chemical engineering Limited company, and uniformly stirring and thickening.
The chemical indexes of the product are as follows:
appearance: a milky white paste;
ionic property: negative;
pH value: 7 plus or minus 0.5;
solid content: 10 to 40 percent;
the preparation method comprises the following steps:
the weight ratio of each raw material is as follows: 20-21 parts of itaconic acid, 350-360 parts of ethyl acrylate, 71-73 parts of allyl polyoxyalkyl epoxy ether, 10-10.5 parts of ethyl-2 methyl 1,3 dioxy amyl-4-acrylate, 42-44 parts of methyl methacrylate, 2-2.3 parts of fatty alcohol polyoxyethylene ether XL-90, 1.9-2.1 parts of ammonium persulfate, 550-600 parts of deionized water and 3g of thickener FS-300H.
The processing method comprises the following steps:
(1) emulsification: adding 20-21g of itaconic acid, 350-360g of ethyl acrylate, 71-73g of allyl polyoxyalkyl epoxy ether, 10-10.5g of ethyl-2 methyl 1,3 dioxopentyl-4-acrylate, 42-44g of methyl methacrylate, 2-2.3g of fatty alcohol polyoxyethylene ether XL-90 and 600g of deionized water 550-doped into a stainless steel kettle, and stirring and emulsifying for 20 minutes to prepare an emulsion;
(2) initiating polymerization: taking 20 percent of the total amount of the emulsion, namely 209 to 222.16 grams, adding the emulsion into a reaction kettle, heating to 80 to 82 ℃, adding a mixed solution of 1.27 grams of initiator ammonium persulfate and 50 grams of water, initiating, dropwise adding the rest 836 to 888.64 grams of the emulsion at the temperature, simultaneously dropwise adding 0.63 to 0.83 gram of ammonium persulfate and 50 grams of water, finishing dropwise adding within 1 to 2 hours, preserving heat at the temperature of 80 to 82 ℃ for 2 to 3 hours, then cooling to 30 to 40 ℃, and adjusting the pH value to 7 +/-0.5 by using ammonia water;
(3) compounding: and (3) taking the polymerized emulsion according to different air permeability requirements, adding water and a thickener FS-300H produced by Liaoning sidereal fine chemical Co., Ltd, uniformly stirring and thickening, filtering and discharging to obtain the product.
The invention selects itaconic acid, ethyl acrylate, allyl polyoxyalkyl epoxy ether, ethyl-2 methyl 1,3 dioxolane-4-yl acrylate and methyl methacrylate monomer for copolymerization, wherein the allyl polyoxyalkyl epoxy ether contains epoxy group, which can lead the polymerization product to have excellent elasticity and soft hand feeling. The ethyl-2 methyl 1,3 dioxolane-4-yl acrylate contains active groups, is a crosslinking monomer, is free of formaldehyde, can enable a polymerization product to have strong crosslinking capacity, enables printed fabrics to have excellent fastness, can improve the smoothness and soft hand feeling of the polymerization product, is added with a proper amount of a thickening agent 300H after polymerization, is stirred uniformly and is filtered. Therefore, the obtained polymerized latex coating has the characteristics of excellent performance, easy control of operation, lower cost and simple production process.
The processing method for combining the DE type air filtering material with the polymer latex coating film comprises the following process flows:
the production process method uses equipment to uniformly coat the polymerized latex coating on the air outlet surface of the DE type air filter material, so that the filtration efficiency grade is improved on the basis of not changing the prior technical performance, and the requirement of the standard GB/T14295 is met.
Sizing coating: the angle of the sizing roller on the scraper is adjusted to control the gauge to control the thickness of the coating and the sizing amount, thereby achieving the purpose of improving the filtering efficiency level of the DE type air filtering material.
The sizing fastness and the coating distribution uniformity are fixed by adjusting the transmission speed and the drying temperature.
Hot rolling and ironing the surface to ensure the surface smoothness. And testing and verifying according to the standard.
Example 1
(1) Emulsification: adding 20g of itaconic acid, 350 g of ethyl acrylate, 71 g of allyl polyoxyalkyl epoxy ether, 10 g of ethyl-2 methyl 1,3 dioxygen amyl-4-base acrylate, 42 g of methyl methacrylate, 2 g of fatty alcohol polyoxyethylene ether XL-90 and 550 g of deionized water into a stainless steel kettle, stirring and emulsifying for 20 minutes to prepare emulsion.
(2) Initiating polymerization: taking 20 percent of the total amount of the emulsion, namely 209 grams, adding the emulsion into a reaction kettle, heating to 80-82 ℃, adding a mixed solution of 1.27 grams of initiator ammonium persulfate and 50 grams of water, initiating, dripping 836 grams of the rest emulsion at the temperature, simultaneously dripping 0.63 gram of ammonium persulfate and 50 grams of water, finishing dripping within 1-2 hours, preserving heat for 2-3 hours at 80-82 ℃, then cooling to 30-40 ℃, and adjusting the pH value to 7 +/-0.5 by using ammonia water;
(3) compounding: taking 50g of the polymerized emulsion according to different air permeability requirements, adding 47g of water and 3g of thickener FS-300H produced by Liaoning sidereal fine chemical engineering Co., Ltd, stirring and thickening uniformly, filtering and discharging to obtain the product.
(4) Coating: sizing gram weight: 80 g/square meter, vehicle speed: 10m/nim, and the drying temperature is 140 ℃.
Type DE air filtration grade is F5, post-sizing filtration grade F7.
Performance index comparison table before and after DE air filter material coating
Example 2
The weight ratio of the raw materials is as follows: 20.5 g of itaconic acid, 355 g of ethyl acrylate, 72 g of allyl polyoxyalkyl epoxy ether, 10.5g of ethyl-2 methyl 1, 3-dioxolane-4-yl acrylate, 43 g of methyl methacrylate, 2.1g of fatty alcohol polyoxyethylene ether XL-90, 2.1g of ammonium persulfate, 580 g of deionized water, 70g of polymerized emulsion, 27g of water and 3g of thickener FS-300H produced by Liaoning sidereal fine chemical Co., Ltd.
Coating: sizing gram weight: 120 g/square meter, vehicle speed: 8m/nim and the drying temperature is 140 ℃.
Type DE air filtration grade is F5, post-sizing filtration grade F8.
Performance index comparison table before and after DE air filter material coating
Example 3
The weight ratio of the raw materials is as follows: 21g of itaconic acid, 360g of ethyl acrylate, 73g of allyl polyoxyalkyl epoxy ether, 10.5g of ethyl-2 methyl 1, 3-dioxolane-4-yl acrylate, 4g of methyl methacrylate, 2. g of fatty alcohol polyoxyethylene ether XL-90, 2.1g of ammonium persulfate, 600g of deionized water, 80g of polymerized emulsion, 17g of water, 3g of thickener FS-300H produced by Liaoning sidereal fine chemical Co., Ltd, 70g of polymerized emulsion, 27g of water and 3g of thickener FS-300H produced by Liaoning sidereal fine chemical Co., Ltd are added, and the production process is the same as that of example 1.
Coating: sizing gram weight: 160 g/square meter, vehicle speed: 6m/nim, and the drying temperature is 140 ℃.
The DE type air filtration material was grade F5, post-sizing filtration grade F9.
Performance index comparison table before and after DE air filter material coating
Claims (3)
1. A multi-performance coating filter material is characterized in that,
the raw materials adopted by the weight ratio are as follows:
20-21g of itaconic acid, 360g of ethyl acrylate 350-ion, 71-73g of allyl polyoxyalkyl epoxy ether, 10-10.5g of (2-ethyl-2-methyl-1, 3-dioxopentyl-4-yl) acrylate, 42-44g of methyl methacrylate, 2-2.3g of fatty alcohol polyoxyethylene ether XL-90, 1.9-2.1g of ammonium persulfate and 600g of deionized water 550-ion, and mixing to obtain a polymerization emulsion; taking 80g of the polymerized emulsion, adding 17g of water and 3g of thickening agent, uniformly stirring and thickening, filtering and discharging to obtain the product.
2. The multi-performance coated filter material of claim 1,
the preparation method comprises the following steps:
(1) emulsification: adding 20-21g of itaconic acid, 360g of ethyl acrylate 350-ion-crosslinked acrylic acid, 71-73g of allyl polyoxyalkyl epoxy ether, 10-10.5g of (2-ethyl-2-methyl-1, 3-dioxopentyl-4-yl) acrylate, 42-44g of methyl methacrylate, 2-2.3g of fatty alcohol polyoxyethylene ether XL-90 and 600g of deionized water 550-ion-crosslinked acrylic acid into a stainless steel kettle, and stirring and emulsifying for 20 minutes to prepare an emulsion;
(2) initiating polymerization: taking 20 percent of the total amount of the emulsion, namely 209-222.16g, adding the emulsion into a reaction kettle, heating to 80-82 ℃, adding a mixed solution of 1.27g of initiator ammonium persulfate and 50g of water, initiating, dripping 836-888.64g of the rest emulsion at the temperature, simultaneously dripping 0.63-0.83g of ammonium persulfate and 50g of water, finishing dripping within 1-2 hours, preserving the heat at 80-82 ℃ for 2-3 hours, then cooling to 30-40 ℃, and adjusting the pH value to 7 +/-0.5 by using ammonia water;
(3) compounding: and taking 80g of the polymerized emulsion, adding 17g of water and 3g of thickening agent, uniformly stirring and thickening, filtering and discharging to obtain the product.
3. The multi-performance coated filter material of claim 1,
the prepared product is coated on a DE type filtering material, and after drying, the coating film material is a material formed by a film and the DE type filtering material into a whole, so that on the basis of keeping the performance advantages of the DE type filtering material, the consistency of the filtering aperture is increased, and the filtering material with standard air permeability and sub-high efficiency level is ensured to be realized.
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| US5703176B1 (en) * | 1996-03-18 | 2000-10-03 | Para Chem Southern Inc | Polyacrylate thickener and method for making same |
| CN103215808B (en) * | 2013-05-04 | 2015-08-26 | 辽宁恒星精细化工有限公司 | Resistance to washing oil sense coating adhesive and preparation method |
| CN104831540B (en) * | 2015-05-20 | 2017-02-01 | 丹东优耐特纺织品有限公司 | Water-repellent, oil-repellent, sun-proof, anti-bend torsion and cold-resistant matt-leather-membrane aqueous coating adhesive for textiles and preparation method of matt-leather-membrane aqueous coating adhesive |
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