CN116948281A - Method for producing a slow release functional unit, slow release functional unit and household appliance - Google Patents
Method for producing a slow release functional unit, slow release functional unit and household appliance Download PDFInfo
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- CN116948281A CN116948281A CN202211523905.8A CN202211523905A CN116948281A CN 116948281 A CN116948281 A CN 116948281A CN 202211523905 A CN202211523905 A CN 202211523905A CN 116948281 A CN116948281 A CN 116948281A
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- functional
- soluble
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- functional unit
- release
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- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000000463 material Substances 0.000 claims abstract description 137
- 238000002156 mixing Methods 0.000 claims abstract description 62
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000005469 granulation Methods 0.000 claims abstract description 26
- 230000003179 granulation Effects 0.000 claims abstract description 26
- 239000002198 insoluble material Substances 0.000 claims abstract description 22
- 239000008204 material by function Substances 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims description 38
- 239000000203 mixture Substances 0.000 claims description 36
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 35
- 239000000758 substrate Substances 0.000 claims description 25
- 239000000126 substance Substances 0.000 claims description 23
- 239000004970 Chain extender Substances 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 18
- 238000013268 sustained release Methods 0.000 claims description 11
- 239000012730 sustained-release form Substances 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 10
- 239000000284 extract Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- 239000002455 scale inhibitor Substances 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 abstract description 23
- 239000002699 waste material Substances 0.000 abstract description 10
- -1 silver ions Chemical class 0.000 description 27
- 239000002245 particle Substances 0.000 description 11
- 239000002861 polymer material Substances 0.000 description 10
- 239000004698 Polyethylene Substances 0.000 description 9
- 229920000573 polyethylene Polymers 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 7
- 238000011010 flushing procedure Methods 0.000 description 7
- 229920001155 polypropylene Polymers 0.000 description 7
- 230000001954 sterilising effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 241000894007 species Species 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000001509 sodium citrate Substances 0.000 description 3
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- UILPJVPSNHJFIK-UHFFFAOYSA-N Paeonol Chemical compound COC1=CC=C(C(C)=O)C(O)=C1 UILPJVPSNHJFIK-UHFFFAOYSA-N 0.000 description 2
- 229920000805 Polyaspartic acid Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 108010064470 polyaspartate Proteins 0.000 description 2
- 239000004626 polylactic acid Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- FJOLTQXXWSRAIX-UHFFFAOYSA-K silver phosphate Chemical compound [Ag+].[Ag+].[Ag+].[O-]P([O-])([O-])=O FJOLTQXXWSRAIX-UHFFFAOYSA-K 0.000 description 2
- 229940019931 silver phosphate Drugs 0.000 description 2
- 229910000161 silver phosphate Inorganic materials 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 1
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- 229920002197 Sodium polyaspartate Polymers 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- AMHXQVUODFNFGR-UHFFFAOYSA-K [Ag+3].[O-]P([O-])([O-])=O Chemical class [Ag+3].[O-]P([O-])([O-])=O AMHXQVUODFNFGR-UHFFFAOYSA-K 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000003862 amino acid derivatives Chemical class 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 150000001261 hydroxy acids Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- YLTGFGDODHXMFB-UHFFFAOYSA-N isoacetovanillon Natural products COC1=CC=C(C(C)=O)C=C1O YLTGFGDODHXMFB-UHFFFAOYSA-N 0.000 description 1
- 239000000171 lavandula angustifolia l. flower oil Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- MLIBGOFSXXWRIY-UHFFFAOYSA-N paeonol Natural products COC1=CC=C(O)C(C(C)=O)=C1 MLIBGOFSXXWRIY-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000010677 tea tree oil Substances 0.000 description 1
- 229940111630 tea tree oil Drugs 0.000 description 1
Classifications
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/223—Packed additives
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
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- C08K5/17—Amines; Quaternary ammonium compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06F39/02—Devices for adding soap or other washing agents
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
- D06F39/028—Arrangements for selectively supplying water to detergent compartments
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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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
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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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
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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
- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/02—Polyalkylene oxides
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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
- C08J2479/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2461/00 - C08J2477/00
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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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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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
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
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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)
- Textile Engineering (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The application provides a method for preparing a slow release functional unit, the slow release functional unit and a household appliance. The method for preparing the slow release functional unit comprises the following steps: sequentially carrying out second blending and second granulation treatment on the functional master batch and insoluble materials to obtain a slow-release functional unit; the functional master batch is a master batch containing functional materials. The functional master batch and the insoluble material are blended and granulated, so that the functional master batch containing the functional material forms a soluble functional part of the slow-release functional unit, the soluble functional part is communicated with the outside of the insoluble base frame and is in a continuous structure, the functional material can be released into the environment outside the insoluble base frame along with the dissolution of the soluble functional part in water, and as the soluble functional part is in a continuous structure, all the functional materials on the surface and inside of the insoluble base frame can be gradually and completely released along with the use of the slow-release functional unit, the use time of the slow-release functional unit and the utilization rate of the functional material are further improved, and the waste of the functional material is avoided.
Description
Technical Field
The application relates to the technical field of materials, in particular to a method for preparing a slow-release functional unit, the slow-release functional unit and a household appliance.
Background
At present, the multifunctional ways of removing smell, descaling, sterilizing and the like are usually realized by adding functional substances in a working environment, such as descaling salts, sterilized silver phosphates, healthy natural sterilization and the like. In order to facilitate use and maintain long-lasting functional effects, the functional substances are usually required to be supported in carriers, such as silver phosphate, glass, natural antibacterial agents, activated carbon capable of supporting descaling salts, and the like. However, since the functional substances are mostly inorganic substances or small molecules in nature and are basically randomly dispersed in a matrix, stable release paths are difficult to form, and therefore, theoretically, only the functional substances dispersed on the surface of the matrix can be released to perform a functional function, but the functional substances in the matrix are difficult to be released in water, and the function of the functional substances cannot be fully exerted.
Disclosure of Invention
The present application aims to solve at least one of the technical problems in the related art to some extent. Therefore, one purpose of the application is to provide a method for preparing a slow-release functional unit, which is simple and easy to implement, has mature process and is convenient for industrial production, and the prepared slow-release functional unit can completely release functional materials in water environment.
In one aspect of the application, a method of preparing a sustained release functional unit is provided. According to an embodiment of the present application, a method of preparing a sustained release functional unit includes: and sequentially carrying out second blending and second granulation treatment on the functional master batch and the insoluble material to obtain the slow-release functional unit, wherein the functional master batch is a master batch containing the functional material.
In the method, the functional master batch containing the functional material required in the use process of the household appliance is selected as the raw material, and the functional master batch and the insoluble material are blended and granulated, so that the functional master batch containing the functional material forms a soluble functional part of the slow-release functional unit, the functional material is dispersed in the soluble functional part, the insoluble material is used as an insoluble base frame in the slow-release functional unit, and the soluble functional part is communicated with the outside of the insoluble base frame and is in a continuous structure, so that the functional material can be released into the environment outside the insoluble base frame along with the dissolution of the soluble functional part in water, and as the soluble functional part is in a continuous structure, all the functional materials on the surface and inside of the insoluble base frame can be gradually and completely released along with the use of the slow-release functional unit, thereby improving the use time of the slow-release functional unit and the utilization rate of the functional material, and avoiding the waste of the functional material.
According to an embodiment of the application, before the second blending, the method further comprises: and sequentially carrying out first blending and first granulating treatment on the functional material and the soluble base material to obtain the functional master batch.
According to an embodiment of the application, before the first blending, the method further comprises: the soluble substrate is dried in advance, and the temperature of the drying treatment is 50-80 ℃.
According to an embodiment of the application, before the first granulation or the second granulation treatment, the method further comprises: the mixture obtained by the first blending or the second blending is subjected to a cooling treatment in advance.
According to an embodiment of the present application, the insoluble material is used in an amount of 30 to 70 parts by weight; the use amount of the soluble base material is 15-60 parts by weight; and the amount of the functional material is 1 to 35 parts by weight.
According to an embodiment of the application, the first blending is performed of a functional material, a chain extender and a soluble substrate; and/or, the functional masterbatch, insoluble material and chain extender are subjected to the second blending.
The chain extender according to the embodiment of the present application is used in an amount of 5 to 10 parts by weight.
According to an embodiment of the present application, the soluble substrate comprises at least one of polyvinyl alcohol, polyethylene glycol and polyethylene oxide, the insoluble material comprises at least one of plastic, rubber and fiber, and the functional material comprises at least one of metal substances, polymer substances, natural extract substances, scale inhibitors substances, ionic substances or a combination thereof.
In another aspect of the application, the application provides a sustained release functional unit prepared by the foregoing method. According to an embodiment of the present application, the slow release functional unit includes an insoluble base frame and a soluble functional part. Therefore, the functional material is dispersed in the soluble functional part, the functional material can be released into the environment outside the insoluble base frame along with the dissolution of the soluble functional part in water, and the soluble functional part is of a continuous structure, so that the functional material on the surface and in the insoluble base frame can be gradually and completely released along with the use of the slow-release functional unit, the use time of the slow-release functional unit and the utilization rate of the material are further improved, and the waste of the functional material is avoided.
According to an embodiment of the present application, the width of the soluble functional portion is 50 nm to 50 μm.
According to an embodiment of the present application, the method further comprises a chain extender, wherein a chemical bond is connected between the soluble functional part and the insoluble base frame.
In a further aspect of the application, the application provides a household appliance comprising the foregoing slow release functional unit according to an embodiment of the application. Therefore, when the household equipment works, the functional materials in the soluble functional part of the slow-release functional unit can be released to the environment outside the insoluble base frame along with the dissolution of the soluble base material in water, and as the soluble functional part is of a continuous structure, all the functional materials on the surface and in the insoluble base frame can be gradually and completely released along with the use of the slow-release functional unit, so that the use time of the slow-release functional unit and the utilization rate of the materials are improved, and the waste of the functional materials is avoided.
According to an embodiment of the present application, the household appliance is a washing machine, a water purifier, a floor washing machine or a dishwasher.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a flow chart of a method of preparing a slow release functional unit in one embodiment of the application;
fig. 2 is a schematic diagram of a sustained release functional unit in another embodiment of the present application.
Detailed Description
The scheme of the present application will be explained below with reference to examples. It will be appreciated by those skilled in the art that the following examples are illustrative of the present application and should not be construed as limiting the scope of the application. The examples are not to be construed as limiting the specific techniques or conditions described in the literature in this field or as per the specifications of the product. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
The application will now be described with reference to specific examples, which are intended to be illustrative only and not limiting in any way.
In one aspect of the application, a method of preparing a sustained release functional unit is provided. According to an embodiment of the present application, referring to fig. 1, a method of preparing a slow release functional unit includes:
s200: sequentially carrying out second blending and second granulation treatment on the functional master batch and insoluble materials to obtain a slow-release functional unit; wherein the functional master batch is a master batch containing functional materials.
According to the embodiment of the application, the functional material is a material or a substance for realizing the function required by the use process of the household appliance, for example, the water purifier needs to have a soft water function in the use process, and a water softener (such as phosphate and the like) required by the function is the functional material; for another example, the washing machine needs to have a sterilizing function in the use process, and sterilizing substances (such as silver ions) needed for realizing the function are functional materials. The functional material is contained in the master batch, can be the functional material is wrapped by the master batch, or can be the functional material is dispersed and mixed in the master batch, the application is not limited to the above, and only the functional material is contained in the master batch.
According to the embodiment of the present application, the working temperature of the second blending is not particularly required, and those skilled in the art can flexibly select according to the specific kind of insoluble materials (e.g., insoluble polymer materials) and the actual conditions of the extruder (for blending) and the like. In some embodiments, blending may be performed using a twin screw extruder where one zone of the twin screw extruder operates at a temperature of about 50 c and the remaining operating zones (e.g., two and three zones) operate at a temperature of 160 c to 190 c.
In some embodiments, the second blended mixture is subjected to a second air-cooling treatment prior to the second granulation treatment. As described above, the temperature of the product obtained by blending in the extruder is high and is about 160 to 190 ℃, and the product is not easily shaped, so that the blended product needs to be subjected to air cooling treatment in order to facilitate subsequent granulation. According to an embodiment of the present application, the second blended mixture is subjected to the second air cooling treatment to 50 ℃ or lower. Therefore, the product treated by cold air has better hardness and is convenient for cutting and granulating. In some embodiments, the particle size of the slow release functional units is 1 to 5mm.
In the method, the functional master batch containing the functional material required in the use process of the household appliance is selected as the raw material, the functional master batch and the insoluble material are blended and granulated, so that the functional master batch containing the functional material forms a soluble functional part of the slow-release functional unit, the functional material is dispersed in the soluble functional part, the insoluble material can be used as an insoluble base frame in the slow-release functional unit, the soluble functional part is communicated with the outside of the insoluble base frame and is in a continuous structure, so that the functional material can be released into the environment outside the insoluble base frame along with the dissolution of the soluble functional part in water, and as the soluble functional part is in a continuous structure, all the functional materials on the surface and inside of the insoluble base frame can be gradually and completely released along with the use of the slow-release functional unit, the use time of the slow-release functional unit and the utilization rate of the functional material are further improved, and the waste of the functional material is avoided.
In some embodiments, prior to the second blending, the method further comprises:
s100: and sequentially carrying out first blending and first granulating treatment on the functional material and the soluble base material to obtain the functional master batch.
According to embodiments of the present application, the soluble substrate is pre-dried prior to the first blending. The water adsorbed by the soluble substrate is removed by pre-drying the soluble substrate, so that the soluble substrate is prevented from being dissolved by water, and the stability of the slow-release functional unit is prevented from being influenced. If the functional material has water absorption, the soluble substrate and the functional material may be dried together in advance (if the functional material has poor water absorption, the functional material may not be dried), so as to avoid water in the functional material from dissolving the soluble substrate, and avoid affecting the efficacy of the functional material and the stability of the slow-release functional unit. In some embodiments of the application, the drying process is performed at a temperature of 50℃to 80℃such as 50℃60℃65℃70℃75℃80 ℃. The drying temperature can be selected by a person skilled in the art according to the actual conditions such as the slow-release functional unit, the specific material types of the functional material and the like, so that the moisture adsorbed by the functional material can be rapidly removed, and the performance of the functional material can not be influenced. In some embodiments, the drying time is from 4 to 8 hours.
In some embodiments, the functional material and the slow-release functional unit may also be milled in advance prior to the first blending, thereby substantially improving the uniformity of the mixing of the functional material and the slow-release functional unit. The adhesive can be added during the first blending, so that the stability of the functional master batch is improved, namely the stability of the soluble functional part in the subsequently obtained slow-release functional unit is improved.
According to the embodiment of the present application, the working temperature of the first blending is not particularly required, and those skilled in the art can flexibly select according to the specific kind of functional material and the soluble substrate, and the actual conditions of the extruder (for blending) and the like. In some embodiments, blending may be performed using a twin screw extruder where one zone of the twin screw extruder operates at a temperature of about 50 c and the remaining operating zones (e.g., two and three zones) operate at a temperature of 160 c to 190 c.
According to an embodiment of the present application, the first air-cooled mixture obtained by the first blending is subjected to a first air-cooling treatment in advance before the first granulation treatment. As described above, the temperature of the product obtained by blending in the extruder is high and is about 160 to 190 ℃, and the product is not easily shaped, so that the blended product needs to be subjected to air cooling treatment in order to facilitate subsequent granulation. According to an embodiment of the application, the first blended mixture is subjected to a first air-cooling treatment to below 50 ℃. Therefore, the product treated by cold air has better hardness and is convenient for cutting and granulating.
In some embodiments, the particle size of the functional master batch is 2-5 mm, and the functional master batch with the size can be more fully and uniformly mixed with insoluble materials, so that the functional master batch is beneficial to a soluble functional part with continuous structure and is not easy to agglomerate. If the particle size of the functional master batch is smaller than 2mm, agglomeration is relatively easy to occur, and uniformity of mixing is not facilitated; if the particle size of the functional master batch is larger than 5mm, the uniformity of the distribution of the subsequent soluble functional parts in the slow-release functional units is relatively unfavorable to improve, and the continuity of the soluble functional parts is affected.
According to an embodiment of the application, the first blending is performed of a functional material, a chain extender and a soluble substrate; and/or, performing second blending on the functional master batch, the insoluble material and the chain extender. Thus, the addition of the chain extender can cause a chemical reaction between the insoluble material and the soluble base material by changing the insoluble material, thereby reducing the dissolution rate of the soluble functional part, and controlling the dissolution rate by both physical and chemical means.
According to an embodiment of the present application, the insoluble material is used in an amount of 30 to 70 parts by weight (e.g., 30 parts by weight, 35 parts by weight, 40 parts by weight, 45 parts by weight, 50 parts by weight, 55 parts by weight, 60 parts by weight, 65 parts by weight, 70 parts by weight); the amount of the soluble base material is 15 to 60 parts by weight (for example, 15 parts by weight, 20 parts by weight, 25 parts by weight, 30 parts by weight, 35 parts by weight, 40 parts by weight, 45 parts by weight, 50 parts by weight, 55 parts by weight, 60 parts by weight); and the amount of the functional material is 1 to 35 parts by weight (for example, 1 part by weight, 5 parts by weight, 10 parts by weight, 15 parts by weight, 18 parts by weight, 20 parts by weight, 23 parts by weight, 25 parts by weight, 28 parts by weight, 30 parts by weight, 32 parts by weight, 34 parts by weight, 35 parts by weight). Therefore, the slow-release functional unit prepared by the components has a proper amount of soluble base material and functional material, so that an insoluble base frame formed by insoluble materials in the slow-release functional unit and a soluble functional part formed by the soluble base material and the functional material have proper volume ratio, and the structural stability of the slow-release functional unit and the dissolution rate and efficacy of the functional material are ensured; if the components of the insoluble base frame are more, namely the volume fraction of the soluble base material in the slow-release functional unit is smaller, the volume fraction of the soluble functional part is smaller, so that the service time of the slow-release functional unit is relatively reduced, the internal framework of the insoluble base frame is compact, the soluble functional part in the slow-release functional unit is not easy to contact with water, the dissolution or the dissolution rate is not easy to be slow, and the efficacy of the functional material to play a role is weakened; on the contrary, if the component of the insoluble base frame is less, that is, the volume fraction of the insoluble base frame in the slow-release functional unit is smaller, the interior of the slow-release functional unit contains relatively more soluble functional parts, so that the stability between the soluble functional parts and the insoluble base frame is relatively poor, and the dissolution rate of the soluble functional parts is too fast, thereby easily causing the waste of materials. The dosage between the functional material and the soluble base material can ensure that the functional material is uniformly dispersed in the soluble base material, and the concentration of the functional material in the soluble functional part is better, thereby ensuring the function of the slow-release functional unit. Therefore, the dissolution rate of the soluble functional part can be controlled by controlling the dosage of each component, so that the requirement on the action and efficacy of the functional material of the slow-release functional unit can be met, and the waste of the material caused by too fast dissolution of the functional material can be avoided. The specific amount of the functional material may be set by those skilled in the art between 1 and 35 parts by weight according to the specific functional material, for example, the functional material containing silver ions may be appropriately reduced.
In some embodiments, the amount of chain extender that may be added within the insoluble base frame is 5 to 10 parts by weight (e.g., 5, 6, 7, 8, 9, or 10 parts by weight) of chain extender. Thus, the addition of the chain extender can cause chemical reaction between the insoluble base frame and the soluble base material by changing the insoluble base frame, thereby reducing the water dissolution rate of the soluble functional part and realizing the controllability of the dissolution rate by physical and chemical means.
In embodiments of the present application, the soluble substrate and the insoluble base can be linked by chemical bonds by the introduction of a reactive chain extender. Specific: the chemical bond is formed by adding a chain extender capable of reacting with the soluble substrate and the active insoluble base frame in the melt blending process, thereby performing a chain extension reaction. If the insoluble base is a hydroxyl or carboxyl containing polyester, the chain extender may be selected to contain an epoxy group that reacts with the terminal hydroxyl groups of the soluble substrate and the carboxyl or hydroxyl groups of the insoluble base material to join them together by chemical bonds. Therefore, the binding force between the soluble functional part and the insoluble base frame can be improved, so that the stability of the slow-release functional unit is improved, and the falling of the soluble functional part and the insoluble base frame is avoided, and the product quality is influenced; and the dissolution rate of the soluble base material can be controlled, so that the release rate of the functional material in the slow-release functional unit can be controlled, and the service life of the slow-release functional unit can be prolonged while the effective action of the functional material is ensured.
In an embodiment of the present application, the soluble substrate comprises at least one of polyvinyl alcohol, polyethylene glycol, and polyethylene oxide. The soluble base material of the material has better solubility, can be slowly dissolved when water flows through, and can not generate chemical reaction with functional materials when meeting water, thereby ensuring the stability of the slow-release functional unit; meanwhile, the safety of the materials is good, and the materials can not influence clothes after being dissolved in water; in addition, because the solubility of different soluble base materials in water is different, the dissolution rate of the soluble functional part can be controlled by selecting the specific types of the different soluble base materials so as to meet the different application requirements and application environments of the slow-release functional unit.
In some embodiments, the molecular weight of the soluble substrate may be 5 to 300 ten thousand, and the soluble substrate with the molecular weight has proper solubility, and the dissolution rate of the soluble functional part can be controlled by controlling the molecular weight of the soluble substrate in the application. If the molecular weight of the soluble base material is less than 5 ten thousand, the soluble functional part is not easy to form, and the solvent speed is too high; if the molecular weight of the soluble base material is more than 300 ten thousand, the limit of the soluble functional portion is relatively large, and the processing is not easy, and the continuous structure of the soluble functional portion is not easy to form.
In an embodiment of the present application, the insoluble base comprises at least one of plastic (such as polyethylene, polypropylene, polylactic acid), rubber, and fiber. The insoluble base frame formed by the material has good stability and is not easy to deform under the impact of certain water flow; the property is stable, and the deterioration is not easy to occur; when the chain extender is contained, a chemical bond can be formed between the insoluble base frame of the material and the soluble base material of the material through the chain extender, so that the stability of the slow-release functional unit is improved.
In an embodiment of the present application, the functional material includes at least one of a metal species, a polymer species, a natural extract species, a scale inhibitor species, an ionic species, or a combination thereof. Therefore, the slow-release functional unit has the functions of softening water, descaling, sterilizing, deodorizing and the like, and a person skilled in the art can flexibly select proper functional materials according to the actual conditions of the application environment of the slow-release functional unit so as to meet the application requirements of the slow-release functional unit. Wherein, the water softener can be phosphate, silicate, imine sulfonate, amino acid derivative, hydroxy acid and its derivative, polyacrylic acid and its derivative, the antisludging agent can be sodium citrate, sodium polyaspartate, disodium ethylenediamine tetraacetate, etc., the metal can be heavy metal (such as silver ion and copper ion), metal compound (such as silver nitrate and copper sulfate), etc., the natural extract can be amino acid, lavender oil, tea tree oil, paeonol, etc., and the polymer can be polyhexamethylene guanidine, amino acid type, quaternary ammonium salt, polyquaternary ammonium acid, etc. Of course, one skilled in the art can also select other functional materials that can be blended with the soluble substrate without failure depending on the particular application of the slow release functional unit.
In another aspect of the application, the application provides a sustained release functional unit prepared by the method described above. According to an embodiment of the present application, the slow release functional unit includes an insoluble base frame and a soluble functional part. Therefore, the functional material is dispersed in the soluble functional part, the functional material can be released into the environment outside the insoluble base frame along with the dissolution of the soluble functional part in water, and the soluble functional part is of a continuous structure, so that the functional material on the surface and in the insoluble base frame can be gradually and completely released along with the use of the slow-release functional unit, the use time of the slow-release functional unit and the utilization rate of the material are further improved, and the waste of the functional material is avoided.
In an embodiment of the present application, referring to fig. 2, the width d of the soluble functional portion is 50 nm to 50 microns, for example, d is 50 nm, 100 nm, 200 nm, 500 nm, 800 nm, 1 micron, 5 microns, 10 microns, 15 microns, 20 microns, 25 microns, 30 microns, 35 microns, 40 microns, 45 microns, 50 microns. Therefore, the soluble functional part with the width range can enable water molecules to pass through smoothly, and the functional material and the soluble base material after the soluble functional part is dissolved pass through smoothly, so that the blocking phenomenon can not occur; furthermore, the dissolution rate of the soluble functional portion may also be controlled by controlling the width of the soluble functional portion, wherein the width of the soluble functional portion may be achieved by the amount of the insoluble base frame, the process conditions for preparing the slow release functional unit, and the like. It will be understood by those skilled in the art that the width of the soluble functional portion at different positions in the slow release functional unit is not exactly the same as shown in fig. 1, so long as the width is in the range of d from 50 nm to 50 μm.
In the embodiment of the application, a chemical bond is connected between the soluble substrate and the insoluble base frame in the prepared slow-release functional unit. Therefore, the binding force between the soluble functional part and the insoluble base frame can be improved, so that the stability of the slow-release functional unit is improved, and the soluble functional part is prevented from falling off from the insoluble base frame, and the product quality is prevented from being influenced; and the dissolution rate of the soluble base material can be controlled, so that the release rate of the functional material in the slow-release functional unit can be controlled, and the service life of the slow-release functional unit can be prolonged while the effective action of the functional material is ensured.
In a further aspect of the application, the application provides a household appliance comprising a slow release functional unit as described above according to an embodiment of the application. When the household equipment works, the functional materials in the soluble functional part of the slow-release functional unit can be released to the environment outside the insoluble base frame along with the dissolution of the soluble base material in water, and as the soluble functional part is of a continuous structure, all the functional materials on the surface and in the insoluble base frame can be gradually and completely released along with the use of the slow-release functional unit, so that the use time of the slow-release functional unit and the utilization rate of the materials are improved, and the waste of the functional materials is avoided.
According to an embodiment of the present application, the household appliance is a washing machine, a water purifier, a floor washing machine or a dishwasher.
According to an embodiment of the application, taking a household appliance as an example of a washing machine, the washing machine comprises the slow-release functional unit, which is arranged on a water inlet pipeline. Therefore, when the washing machine washes clothes, the water washes the slow-release functional units positioned on the water inlet pipeline, so that the functional materials dispersed in the soluble functional parts can be released into the environment outside the insoluble base frame along with the dissolution of the soluble base material in the water, and as the soluble functional parts are of continuous structures, all the functional materials on the surface and inside of the insoluble base frame can be gradually and completely released along with the use of the slow-release functional units, thereby further improving the service time of the slow-release functional units, improving the utilization rate of the materials and avoiding the waste of the functional materials.
In an embodiment of the present application, the slow release function unit may be provided in the detergent box in the washing machine such that water simultaneously washes the slow release function unit while flowing through the detergent, so that the soluble function part is dissolved, and the functional material enters the tub with the water flow.
Examples
Example 1
Drying polyethylene oxide (PEO, soluble substrate) and polyhexamethylene guanidine (functional material) at 50deg.C for 6 hr;
polyethylene oxide (PEO) and polyhexamethylene guanidine are first blended by a twin screw extruder, the working temperature of the twin screw extruder is as follows: the temperature of the first area is 50 ℃, the temperature of the second area is 150 ℃, the temperature of the third area is 170 ℃, the temperature of the fourth area is 175 ℃, the temperature of the fifth area is 175 ℃, the temperature of the sixth area is 175 ℃, and the temperature of the die is 160 ℃; carrying out first air cooling treatment on the mixture obtained by the first blending to below 50 ℃;
carrying out first granulation treatment on the mixture subjected to the first air cooling treatment to obtain functional master batches, wherein the particle size of the functional master batches is 2-5 mm;
and (3) performing second blending on the functional master batch and polyethylene (PE, insoluble polymer material) by using a double-screw extruder, wherein the working temperature of the double-screw extruder is as follows: the temperature of the first area is 150 ℃, the temperature of the second area is 160 ℃, the temperature of the third area is 170 ℃, the temperature of the fourth area is 170 ℃, the temperature of the fifth area is 170 ℃, the temperature of the sixth area is 170 ℃, and the temperature of the die is 160 ℃;
performing second air cooling treatment on the mixture obtained by the second blending to below 50 ℃;
performing a second granulation treatment on the mixture subjected to the second air cooling treatment to obtain a slow-release functional unit, wherein the width d of the soluble functional part in the slow-release functional unit is between 50 nanometers and 50 micrometers,
in the preparation method, the amount of the insoluble polymer material is 60 parts by weight, the amount of the soluble base material is 20 parts by weight, and the amount of the functional material is 20 parts by weight.
Example 2
Drying polyethylene oxide (PEO) at 50 ℃ for 4 hours;
polyethylene oxide (PEO) and silver phosphate (Ag) were extruded using a twin screw extruder 3 PO 4 ) The first blending was carried out at the operating temperature of a twin screw extruder: the temperature of the first area is 50 ℃, and the temperature of the second area is 150 DEG CThe temperature of the third area is 170 ℃, the temperature of the fourth area is 175 ℃, the temperature of the fifth area is 175 ℃, the temperature of the sixth area is 175 ℃, and the temperature of the die is 160 ℃;
carrying out first air cooling treatment on the mixture obtained by the first blending to below 50 ℃;
carrying out first granulation treatment on the mixture subjected to the first air cooling treatment to obtain functional master batches, wherein the particle size of the functional master batches is 2-5 mm;
and (3) performing second blending on the functional master batch and polypropylene (PP) by using a double-screw extruder, wherein the working temperature of the double-screw extruder is as follows: the first area temperature is 160 ℃, the second area temperature is 170 ℃, the third area temperature is 180 ℃, the fourth area temperature is 180 ℃, the fifth area temperature is 180 ℃, the sixth area temperature is 180 ℃, and the die temperature is 170 ℃;
performing second air cooling treatment on the mixture obtained by the second blending to below 50 ℃;
performing a second granulation treatment on the mixture subjected to the second air cooling treatment to obtain a slow-release functional unit, wherein the width d of the soluble functional part in the slow-release functional unit is between 50 nanometers and 50 micrometers,
in the preparation method, the amount of the insoluble polymer material is 60 parts by weight, the amount of the soluble base material is 39 parts by weight, and the amount of the functional material is 1 part by weight.
Example 3
Drying polyethylene oxide (PEO) and polyhexamethylene guanidine (PHG) at 50deg.C for 6h;
polyethylene oxide (PEO) and polyhexamethylene guanidine were first blended using a twin screw extruder, which was operated at a temperature: the temperature of the first area is 50 ℃, the temperature of the second area is 150 ℃, the temperature of the third area is 170 ℃, the temperature of the fourth area is 175 ℃, the temperature of the fifth area is 175 ℃, the temperature of the sixth area is 175 ℃, and the temperature of the die is 160 ℃;
carrying out first air cooling treatment on the mixture obtained by the first blending to below 50 ℃;
carrying out first granulation treatment on the mixture subjected to the first air cooling treatment to obtain functional master batches, wherein the particle size of the functional master batches is 2-5 mm;
and (3) performing second blending on the functional master batch and polypropylene (PP) by using a double-screw extruder, wherein the working temperature of the double-screw extruder is as follows: the first area temperature is 160 ℃, the second area temperature is 170 ℃, the third area temperature is 180 ℃, the fourth area temperature is 180 ℃, the fifth area temperature is 180 ℃, the sixth area temperature is 180 ℃, and the die temperature is 170 ℃;
performing second air cooling treatment on the mixture obtained by the second blending to below 50 ℃;
performing a second granulation treatment on the mixture subjected to the second air cooling treatment to obtain a slow-release functional unit, wherein the width d of the soluble functional part in the slow-release functional unit is between 50 nanometers and 50 micrometers,
in the preparation method, the amount of the insoluble polymer material is 60 parts by weight, the amount of the soluble base material is 20 parts by weight, and the amount of the functional material is 20 parts by weight.
Example 4
Drying polyethylene oxide (PEO) at 50 ℃ for 6 hours;
polyethylene oxide (PEO) and copper sulfate (CuSO) 4 ) The first blending was carried out at the operating temperature of a twin screw extruder: the temperature of the first area is 50 ℃, the temperature of the second area is 150 ℃, the temperature of the third area is 170 ℃, the temperature of the fourth area is 175 ℃, the temperature of the fifth area is 175 ℃, the temperature of the sixth area is 175 ℃, and the temperature of the die is 160 ℃;
carrying out first air cooling treatment on the mixture obtained by the first blending to below 50 ℃;
carrying out first granulation treatment on the mixture subjected to the first air cooling treatment to obtain functional master batches, wherein the particle size of the functional master batches is 2-5 mm;
and (3) performing second blending on the functional master batch and polypropylene (PP) by using a double-screw extruder, wherein the working temperature of the double-screw extruder is as follows: the first area temperature is 160 ℃, the second area temperature is 170 ℃, the third area temperature is 180 ℃, the fourth area temperature is 180 ℃, the fifth area temperature is 180 ℃, the sixth area temperature is 180 ℃, and the die temperature is 170 ℃;
performing second air cooling treatment on the mixture obtained by the second blending to below 50 ℃;
performing a second granulation treatment on the mixture subjected to the second air cooling treatment to obtain a slow-release functional unit, wherein the width d of the soluble functional part in the slow-release functional unit is between 50 nanometers and 50 micrometers,
in the preparation method, the amount of the insoluble polymer material is 60 parts by weight, the amount of the soluble base material is 20 parts by weight, and the amount of the functional material is 20 parts by weight.
Example 5
Drying polyethylene oxide (PEO) and polyhexamethylene guanidine (PHG) at 50deg.C for 6h;
polyethylene oxide (PEO), polyhexamethylene guanidine, and chain extender ADR were first blended using a twin screw extruder at a working temperature of: the temperature of the first area is 50 ℃, the temperature of the second area is 150 ℃, the temperature of the third area is 170 ℃, the temperature of the fourth area is 175 ℃, the temperature of the fifth area is 175 ℃, the temperature of the sixth area is 175 ℃, and the temperature of the die is 160 ℃;
carrying out first air cooling treatment on the mixture obtained by the first blending to below 50 ℃;
carrying out first granulation treatment on the mixture subjected to the first air cooling treatment to obtain functional master batches, wherein the particle size of the functional master batches is 2-5 mm;
and (3) performing second blending on the functional master batch and polylactic acid (PLA) by using a double-screw extruder, wherein the working temperature of the double-screw extruder is as follows: the first area temperature is 170 ℃, the second area temperature is 180 ℃, the third area temperature is 180 ℃, the fourth area temperature is 185 ℃, the fifth area temperature is 185 ℃, the sixth area temperature is 180 ℃, and the die temperature is 170 ℃;
performing second air cooling treatment on the mixture obtained by the second blending to below 50 ℃;
performing a second granulation treatment on the mixture subjected to the second air cooling treatment to obtain a slow-release functional unit, wherein the width d of the soluble functional part in the slow-release functional unit is between 50 nanometers and 50 micrometers,
in the preparation method, the amount of the insoluble polymer material is 50 parts by weight, the amount of the soluble base material is 30 parts by weight, the amount of the functional material is 10 parts by weight, and the amount of the chain extender is 10 parts by weight.
Example 6
Drying polyethylene oxide (PEO) and polyhexamethylene guanidine (PHG) at 50deg.C for 6h;
using a twin screw extruder to perform first blending on polyethylene oxide (PEO), polyhexamethylene guanidine and sodium citrate, wherein the working temperature of the twin screw extruder is as follows: the temperature of the first area is 50 ℃, the temperature of the second area is 150 ℃, the temperature of the third area is 170 ℃, the temperature of the fourth area is 175 ℃, the temperature of the fifth area is 175 ℃, the temperature of the sixth area is 175 ℃, and the temperature of the die is 160 ℃;
carrying out first air cooling treatment on the mixture obtained by the first blending to below 50 ℃;
carrying out first granulation treatment on the mixture subjected to the first air cooling treatment to obtain functional master batches, wherein the particle size of the functional master batches is 2-5 mm;
and (3) carrying out second blending on the functional master batch and Polyethylene (PE) by using a double-screw extruder, wherein the working temperature of the double-screw extruder is as follows: the temperature of the first area is 150 ℃, the temperature of the second area is 160 ℃, the temperature of the third area is 170 ℃, the temperature of the fourth area is 170 ℃, the temperature of the fifth area is 170 ℃, the temperature of the sixth area is 170 ℃, and the temperature of the die is 160 ℃;
performing second air cooling treatment on the mixture obtained by the second blending to below 50 ℃;
performing a second granulation treatment on the mixture subjected to the second air cooling treatment to obtain a slow-release functional unit, wherein the width d of the soluble functional part in the slow-release functional unit is between 50 nanometers and 50 micrometers,
in the preparation method, the amount of the insoluble polymer material is 60 parts by weight, the amount of the soluble base material is 20 parts by weight, the amount of the polyhexamethylene guanidine is 10 parts by weight, and the amount of the sodium citrate is 10 parts by weight.
Example 7
Drying polyethylene oxide (PEO) and polyhexamethylene guanidine (PHG) at 50deg.C for 6h;
using a twin screw extruder, polyethylene oxide (PEO), polyhexamethylene guanidine, and polyaspartic acid were first blended, the twin screw extruder operating at a temperature of: the temperature of the first area is 50 ℃, the temperature of the second area is 150 ℃, the temperature of the third area is 170 ℃, the temperature of the fourth area is 175 ℃, the temperature of the fifth area is 175 ℃, the temperature of the sixth area is 175 ℃, and the temperature of the die is 160 ℃;
carrying out first air cooling treatment on the mixture obtained by the first blending to below 50 ℃;
carrying out first granulation treatment on the mixture subjected to the first air cooling treatment to obtain functional master batches, wherein the particle size of the functional master batches is 2-5 mm;
and (3) carrying out second blending on the functional master batch and Polyethylene (PE) by using a double-screw extruder, wherein the working temperature of the double-screw extruder is as follows: : the temperature of the first area is 150 ℃, the temperature of the second area is 160 ℃, the temperature of the third area is 170 ℃, the temperature of the fourth area is 170 ℃, the temperature of the fifth area is 170 ℃, the temperature of the sixth area is 170 ℃, and the temperature of the die is 160 ℃;
performing second air cooling treatment on the mixture obtained by the second blending to below 50 ℃;
performing a second granulation treatment on the mixture subjected to the second air cooling treatment to obtain a slow-release functional unit, wherein the width d of the soluble functional part in the slow-release functional unit is between 50 nanometers and 50 micrometers,
in the preparation method, the amount of the insoluble polymer material is 60 parts by weight, the amount of the soluble base material is 20 parts by weight, the amount of the polyhexamethylene guanidine is 10 parts by weight, and the amount of the polyaspartic acid is 10 parts by weight.
Comparative example 1
Drying polyethylene oxide (PEO) and polyhexamethylene guanidine (PHG) at 50deg.C for 6h;
blending Polyethylene (PE), polyethylene oxide (PEO) and polyhexamethylene guanidine by using a twin screw extruder, wherein the working temperature of the twin screw extruder is as follows: the temperature of the first area is 150 ℃, the temperature of the second area is 160 ℃, the temperature of the third area is 170 ℃, the temperature of the fourth area is 170 ℃, the temperature of the fifth area is 170 ℃, the temperature of the sixth area is 170 ℃, and the temperature of the die is 160 ℃;
carrying out air cooling treatment on the mixture obtained by the first blending to below 50 ℃;
granulating the mixture subjected to air cooling treatment to obtain the functional composite material,
in the preparation method, the amount of the insoluble polymer material is 60 parts by weight, the amount of the soluble base material is 20 parts by weight, and the amount of the functional material is 20 parts by weight.
TABLE 1
Wherein, respectively weighing 20g of the slow release functional units prepared in examples 1-7 and 20g of the functional composite material prepared in comparative example 1, then respectively and continuously flushing the symmetrically-taken samples for a certain time, wherein the flushing flow is 7L/min, drying (50 ℃) and weighing after flushing, then flushing for a certain time, drying and weighing again, and continuously performing a plurality of cycles until the functional materials are slowly released, and the effect is not obvious. The flushing time refers to the time that the functional material can normally play a role, and if the flushing is continued, the functional material is slowly released, and the function of the slow-release functional unit is not obvious. The usage rate of the functional material= (initial weight of the slow release functional unit-weight of the slow release functional unit after flush drying)/initial weight of the slow release functional unit is 100%.
As can be seen from table 1, compared with comparative example 1, the sustained release time of the sustained release functional units prepared in examples 1 to 7 was longer, and the use ratio of the functional material was also higher; in comparative example 1, however, the flushing was continued for a longer period of time, and the use rate of the functional material was still maintained at a lower level.
The terms "first," "second," and the like herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (13)
1. A method of preparing a sustained release functional unit, the method comprising:
sequentially carrying out second blending and second granulation treatment on the functional master batch and insoluble materials to obtain the slow-release functional unit;
wherein the functional master batch is a master batch containing functional materials.
2. The method of claim 1, wherein prior to the second blending, the method further comprises: and sequentially carrying out first blending and first granulating treatment on the functional material and the soluble base material to obtain the functional master batch.
3. The method of claim 2, wherein prior to the first blending, the method further comprises: and (3) carrying out drying treatment on the soluble substrate in advance, wherein the temperature of the drying treatment is 50-80 ℃.
4. The method according to any one of claims 1 or 2, wherein prior to the first granulation treatment or the second granulation, the method further comprises: the mixture obtained by the first blending or the second blending is subjected to a cooling treatment in advance.
5. The method of claim 2, wherein the step of determining the position of the substrate comprises,
the dosage of the insoluble material is 30-70 parts by weight;
the use amount of the soluble base material is 15-60 parts by weight; and
the dosage of the functional material is 1-35 parts by weight.
6. The method according to any one of claims 1 or 2, wherein the functional material, chain extender and soluble substrate are first blended; and/or, the functional masterbatch, the insoluble material, and the chain extender are subjected to the second blending.
7. The method according to claim 6, wherein the chain extender is used in an amount of 5 to 10 parts by weight.
8. The method of claim 2, wherein the soluble substrate comprises at least one of polyvinyl alcohol, polyethylene glycol, and polyethylene oxide, the insoluble material comprises at least one of plastic, rubber, and fiber, and the functional material comprises at least one of a metal species, a polymer species, a natural extract species, a scale inhibitor species, an ionic species, or a combination thereof.
9. A sustained release functional unit prepared using the method of any one of claims 1 to 8, comprising: an insoluble base frame and a soluble functional part.
10. The sustained-release functional unit according to claim 9, wherein the width of the soluble functional portion is 50 nm to 50 μm.
11. The slow release functional unit of claim 9, further comprising a chain extender, wherein a chemical bond is attached between the soluble functional moiety and the insoluble base.
12. A household appliance, characterized by comprising a slow release functional unit according to any one of claims 9 to 11.
13. The household appliance of claim 12, wherein the household appliance is a washing machine, a water purifier, a floor washer, or a dishwasher.
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| PCT/CN2023/106289 WO2024012363A1 (en) | 2022-07-15 | 2023-07-07 | Method for preparing sustained-release structure, sustained-release structure, and cleaning device |
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| CN1282698C (en) * | 2002-03-15 | 2006-11-01 | 上海塑杰科技有限公司 | Functional agglomerates of polyolefin as well as its preparing method and application |
| CN100406496C (en) * | 2003-07-23 | 2008-07-30 | 上海塑杰科技有限公司 | Polyamine guanidine salt copolymer and its uses in antibiotic polyester and polyamide materials |
| JP5296289B2 (en) * | 2004-09-22 | 2013-09-25 | レンゴー株式会社 | Functional water-soluble substance sustained release material |
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| CN109594139B (en) * | 2018-12-23 | 2021-11-09 | 三河市京纳环保技术有限公司 | Quick-acting antibacterial functional master batch for polyolefin filamentous material, and preparation method and application thereof |
| CN110066459B (en) * | 2019-04-18 | 2021-07-16 | 青岛拜士特新材料有限公司 | Slow-release antibacterial master batch and preparation method thereof |
| CN110835457A (en) * | 2019-11-15 | 2020-02-25 | 上海海洋大学 | Full-biomass porous material slow-release antibacterial active preservative film and preparation method thereof |
| CN114685185A (en) * | 2020-12-31 | 2022-07-01 | 无锡小天鹅电器有限公司 | Antibacterial composite material and preparation method thereof |
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