CN110685170B - Wool keratin/waterborne polyurethane composite emulsion coating agent with warm-keeping function and preparation method thereof - Google Patents
Wool keratin/waterborne polyurethane composite emulsion coating agent with warm-keeping function and preparation method thereof Download PDFInfo
- Publication number
- CN110685170B CN110685170B CN201910946652.7A CN201910946652A CN110685170B CN 110685170 B CN110685170 B CN 110685170B CN 201910946652 A CN201910946652 A CN 201910946652A CN 110685170 B CN110685170 B CN 110685170B
- Authority
- CN
- China
- Prior art keywords
- wool keratin
- wool
- emulsion
- keratin
- coating agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 210000002268 wool Anatomy 0.000 title claims abstract description 117
- 102000011782 Keratins Human genes 0.000 title claims abstract description 98
- 108010076876 Keratins Proteins 0.000 title claims abstract description 98
- 239000000839 emulsion Substances 0.000 title claims abstract description 76
- 239000011248 coating agent Substances 0.000 title claims abstract description 46
- 239000004814 polyurethane Substances 0.000 title claims abstract description 45
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 45
- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000002699 waste material Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000004321 preservation Methods 0.000 claims abstract description 16
- 239000011259 mixed solution Substances 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 29
- 239000000243 solution Substances 0.000 claims description 25
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 24
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 claims description 18
- 238000004945 emulsification Methods 0.000 claims description 16
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 claims description 9
- HATKUFQZJPLPGN-UHFFFAOYSA-N 2-phosphanylethane-1,1,1-tricarboxylic acid Chemical compound OC(=O)C(CP)(C(O)=O)C(O)=O HATKUFQZJPLPGN-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 229920001451 polypropylene glycol Polymers 0.000 claims description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 8
- FEWFXBUNENSNBQ-UHFFFAOYSA-N 2-hydroxyacrylic acid Chemical compound OC(=C)C(O)=O FEWFXBUNENSNBQ-UHFFFAOYSA-N 0.000 claims description 7
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical class [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 7
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 239000004202 carbamide Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 7
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000004108 freeze drying Methods 0.000 claims description 5
- 238000007710 freezing Methods 0.000 claims description 5
- 230000008014 freezing Effects 0.000 claims description 5
- 238000006386 neutralization reaction Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 238000005292 vacuum distillation Methods 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 2
- 239000012459 cleaning agent Substances 0.000 claims 1
- 229920000742 Cotton Polymers 0.000 abstract description 11
- 239000004744 fabric Substances 0.000 abstract description 11
- 238000000576 coating method Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000004753 textile Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000011527 polyurethane coating Substances 0.000 description 3
- 230000006750 UV protection Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 229920001222 biopolymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
- C08G18/348—Hydroxycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/6692—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/675—Low-molecular-weight compounds
- C08G18/6755—Unsaturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2201/00—Chemical constitution of the fibres, threads or yarns
- D06N2201/04—Vegetal fibres
- D06N2201/042—Cellulose fibres, e.g. cotton
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to a wool keratin/waterborne polyurethane composite emulsion coating agent with a warm-keeping function and a preparation method thereof. The coating agent can be prepared by the following preparation method: taking waste wool as a raw material, and extracting wool keratin from the waste wool; then preparing keratin into O/W type wool keratin emulsion; the aqueous polyurethane emulsion is prepared, and the wool keratin emulsion and the aqueous polyurethane emulsion are compounded and mixed to prepare the wool keratin/aqueous polyurethane composite emulsion coating agent with the warm-keeping function. After the wool keratin/waterborne polyurethane composite emulsion coating agent prepared by the invention is used for coating finishing of cotton fabrics, the heat preservation rate of the cotton fabrics is increased from 24.7% to more than 66%, which indicates that the coating agent has a good heat preservation function. The preparation process is simple, the production process has no pollution to the environment, and the method is favorable for further popularization and application.
Description
Technical Field
The invention belongs to the technical field of coating agents, and particularly relates to a wool keratin/waterborne polyurethane composite emulsion coating agent with a warm-keeping function and a preparation method thereof.
Background
The coating agent is a textile auxiliary agent which is coated on the surface of the textile and can endow the textile with a plurality of characteristics, such as: warm keeping, wind proofing, hydrophobicity, ultraviolet resistance, static resistance and the like. Currently, the coating agents on the market mainly comprise two categories of polyacrylate and polyurethane, and the two categories of coating agents have advantages and disadvantages when used. Along with the improvement of the quality demand of textile and clothing, various novel textile coating agents are continuously researched and produced to meet the market demand.
When sheepskin is used for leather making, a large amount of waste wool remains exist, and in addition, a large amount of waste wool products exist in the garment wool industry. Wool keratin can be extracted from the waste wool remainder, is a natural biopolymer, has excellent heat preservation performance of wool, and has good biodegradability. It follows that wool keratin has great potential in the field of being used in coating agents.
Currently, many new natural materials are widely used in the field of coating agents, such as: chinese patent application No. 200710145401.6 discloses a waterproof moisture-permeable coating agent composition and application thereof, wherein microporous lignin fine powder is added into a polyurethane coating agent. The research on the use of wool keratin for preparing a coating agent is only rarely reported in literature research, and the invention is expected to have a breakthrough in the field.
Disclosure of Invention
The invention aims to provide a wool keratin/waterborne polyurethane composite emulsion coating agent with a warm-keeping function, which is used for solving the defects in the prior art, and after a textile is coated by the coating agent, the textile has a better warm-keeping function.
The invention aims to provide a wool keratin/waterborne polyurethane composite emulsion coating agent with a warm-keeping function, which can be prepared by the following preparation method: extracting wool keratin from waste wool serving as a raw material; then preparing keratin into O/W type wool keratin emulsion; the aqueous polyurethane emulsion is prepared, and the wool keratin emulsion and the aqueous polyurethane emulsion are compounded and mixed to prepare the wool keratin/aqueous polyurethane composite emulsion coating agent with the warm-keeping function.
The invention also aims to provide a preparation method of the wool keratin/waterborne polyurethane composite emulsion coating agent with the warm-keeping function, which comprises the following steps:
(1) selecting waste wool: the waste clothes made of wool are selected, washed by a clothes washing agent, washed by a large amount of water and dried.
(2) Preparation of wool keratin solution: and (2) dissolving the waste clothes treated in the step (1) in a mixed solution of tricarboxyethylphosphine and urea at the temperature of 60-80 ℃, continuously stirring in the dissolving process, wherein the dissolving time is 4-6 h, filtering, and concentrating to obtain a wool keratin solution, wherein the solid content of the wool keratin solution is 40-60%.
Preferably, the volume-mass ratio of the waste wool (g), the tricarboxyethylphosphine (mL) and the urea (g) is 1: 10-20: 1-2.
(3) Preparing wool keratin powder: and (3) freeze-drying the wool keratin solution prepared in the step (2) on a freeze dryer to prepare wool keratin powder.
Preferably, the freezing temperature is: -50 to-60 ℃, and the drying time is as follows: 10 to 18 hours.
(4) Preparation of O/W emulsion: adding wool keratin solid into a round-bottom flask, adding N-methylmorpholine, and continuously stirring and completely dissolving the wool keratin solid at 40 ℃ on a constant-temperature electromagnetic stirrer; after the wool keratin is completely dissolved, adding the mixed solution into span 60, and stirring to uniformly mix the mixed solution; adding the mixed solution into saturated sodium dodecyl sulfate aqueous solution, and uniformly stirring by using a magnetic rotor to obtain the O/W type wool keratin emulsion.
Preferably, the solid-to-liquid ratio of wool keratin (g) to N-methylmorpholine (mL) is: 1: 5-10; the dosage ratio of span 60 to N-methylmorpholine is as follows: 1-3%; the dosage ratio of the mixed solution (mL) to the saturated sodium dodecyl sulfate aqueous solution (mL) is 1: 2-4.
(5) Pre-polymerization: adding polypropylene glycol and dimethylolpropionic acid into a reaction kettle, dehydrating for 1-2 hours in vacuum at 100-120 ℃, slowly cooling to 50-60 ℃, dropwise adding a mixed solution of toluene diisocyanate, butanone and catalyst stannous octoate, heating to 80-90 ℃, and reacting for 3-4 hours.
Preferably, the molecular weight of the polypropylene glycol is 200, the molar ratio of the polypropylene glycol to the dimethylolpropionic acid to the toluene diisocyanate is 1: 1-3: 3-5, and the volume-mass ratio of the stannous octoate (mL) to the butanone (mL) is 1: 20-30.
(6) Chain extension: and (3) cooling the reaction kettle in the step (5) to 40-45 ℃, adding monohydroxy acrylic acid for 2-4 times in 1-1.5 h, heating to 60-80 ℃, and carrying out heat preservation reaction for 1-2 h.
Preferably, the molar ratio of the monohydroxyacrylic acid to the dimethylolpropionic acid is 1: 1-2.
(7) Emulsification: and (3) adding a certain amount of deionized water into the solution obtained in the step (6) under the action of high shear force in an emulsification pump, carrying out reverse emulsification, and simultaneously dropwise adding triethylamine for neutralization.
Preferably, the shear rate of the emulsification pump is 6000-15000 r/min;
(8) solvent removal: and (4) removing butanone from the emulsion obtained in the step (7) by adopting a reduced pressure low temperature distillation method to obtain the waterborne polyurethane emulsion.
(9) Mixing the emulsion: and (3) mixing the O/W type wool keratin emulsion prepared in the step (4) with the aqueous polyurethane emulsion prepared in the step (8), and stirring the mixed solution on a high-speed dispersion homogenizer for 0.5-1 h at the stirring temperature of 40-45 ℃ to obtain the wool keratin/aqueous polyurethane composite emulsion coating agent with the warm-keeping function.
Preferably, the volume ratio of the O/W-type wool keratin emulsion prepared in the step (4) to the aqueous polyurethane emulsion prepared in the step (8) is 1: 5-7.
The invention has the following remarkable characteristics:
(1) after the wool keratin/waterborne polyurethane composite emulsion coating agent prepared by the invention is used for coating finishing of cotton fabrics, the heat preservation rate of the cotton fabrics is increased from 24.7% to more than 66%, which indicates that the coating agent has a good heat preservation function.
(2) According to the invention, the wool keratin emulsion and the waterborne polyurethane emulsion are mixed, so that the prepared wool keratin/waterborne polyurethane composite emulsion coating agent has stable performance, and does not delaminate after being placed for 90 days.
(3) The raw material source of the wool keratin/waterborne polyurethane composite emulsion coating agent is wide, and the waste wool is efficiently applied; in addition, the waterborne polyurethane coating agent is further modified, so that the performance of the waterborne polyurethane coating agent is obviously improved.
(4) The preparation process is simple, the production process has no pollution to the environment, and the method is favorable for further popularization and application.
Detailed Description
The examples described below illustrate the invention in detail.
Example 1
In this embodiment, the wool keratin/aqueous polyurethane composite emulsion coating agent with a warm-keeping function is prepared by the following method, including the following steps:
(1) Selecting waste wool: the waste clothes made of wool are selected, washed by a clothes washing agent, washed by a large amount of water and dried.
(2) Preparation of wool keratin solution: and (2) dissolving 10g of waste clothes treated in the step (1) in a mixed solution of 150mL of tricarboxyethylphosphine and 15g of urea at 70 ℃, continuously stirring in the dissolving process, wherein the dissolving time is 5h, filtering, and concentrating to obtain a wool keratin solution, wherein the solid content of the wool keratin solution is 48.7%.
(3) Preparation of wool keratin powder: freeze-drying the wool keratin solution prepared in the step (2) on a freeze dryer at the following freezing temperature: -55 ℃, drying time: and (4) 14h, preparing the wool keratin powder.
(4) Preparation of O/W emulsion: adding 10g of wool keratin solid into a round-bottom flask, adding 75 mLN-methylmorpholine, and continuously stirring and completely dissolving the wool keratin solid at 40 ℃ on a constant-temperature electromagnetic stirrer; after the wool keratin is completely dissolved, adding 1.5g of span 60 into the mixed solution, and stirring to uniformly mix the mixture; adding the mixed solution into 225mL of saturated sodium dodecyl sulfate aqueous solution, and uniformly stirring by using a magnetic rotor to obtain the O/W type wool keratin emulsion.
(5) Pre-polymerization: adding 0.1mol of polypropylene glycol with the molecular weight of 200 and 0.2mol of dimethylolpropionic acid into a reaction kettle, dehydrating for 1.5h under vacuum at 110 ℃, slowly cooling to 55 ℃, dropwise adding a mixed solution of 0.4mol of toluene diisocyanate, 25mL of butanone and 1mL of catalyst stannous octoate, heating to 85 ℃, and reacting for 3.5 h.
(6) Chain extension: and (3) cooling the reaction kettle in the step (5) to 43 ℃, adding 0.13mol of monohydroxy acrylic acid into the reaction kettle for 1.2h in 3 times, heating to 70 ℃, and reacting for 1.5h under the condition of heat preservation.
(7) Emulsification: and (3) adding 300mL of deionized water into the solution obtained in the step (6) under the action of high shear force in an emulsification pump with the shear rate of 9000r/min for reverse emulsification, and simultaneously dropwise adding triethylamine for neutralization.
(8) Solvent removal: and (4) removing butanone from the emulsion obtained in the step (7) by adopting a reduced pressure low temperature distillation method to obtain the waterborne polyurethane emulsion.
(9) Mixing the emulsion: mixing 100mL of the O/W type wool keratin emulsion prepared in the step (4) with 600mL of the aqueous polyurethane emulsion prepared in the step (8), and stirring the mixed solution on a high-speed dispersion homogenizer for 0.75h at the stirring temperature of 43 ℃ to obtain the wool keratin/aqueous polyurethane composite emulsion coating agent a with the heat preservation function.
Example 2
In this embodiment, the wool keratin/aqueous polyurethane composite emulsion coating agent with a warm-keeping function is prepared by the following method, including the following steps:
(1) selecting waste wool: the waste clothes made of wool are selected, washed by a clothes washing agent, washed by a large amount of water and dried.
(2) Preparation of wool keratin solution: dissolving 10g of waste clothes treated in the step (1) in 100mL of mixed solution of tricarboxyethylphosphine and 10g of urea at 60 ℃, continuously stirring in the dissolving process, wherein the dissolving time is 4h, filtering, and concentrating to obtain a wool keratin solution, wherein the solid content of the wool keratin solution is 43.5%.
(3) Preparation of wool keratin powder: freeze-drying the wool keratin solution prepared in the step (2) on a freeze dryer at the following freezing temperature: -50 ℃ and drying time: and (4) obtaining the wool keratin powder after 18 hours.
(4) Preparation of O/W emulsion: adding 10g of wool keratin solid into a round-bottom flask, adding 50 mLN-methylmorpholine, and continuously stirring and completely dissolving the wool keratin solid at 40 ℃ on a constant-temperature electromagnetic stirrer; after the wool keratin is completely dissolved, adding 0.5g of span 60 into the mixed solution, and stirring to uniformly mix the mixed solution; adding the mixed solution into 120mL of saturated sodium dodecyl sulfate aqueous solution, and uniformly stirring by using a magnetic rotor to obtain the O/W type wool keratin emulsion.
(5) Prepolymerization: adding 0.1mol of polypropylene glycol with the molecular weight of 200 and 0.1mol of dimethylolpropionic acid into a reaction kettle, dehydrating for 1.5h under vacuum at 110 ℃, slowly cooling to 50 ℃, dropwise adding a mixed solution of 0.3mol of toluene diisocyanate, 20mL of butanone and 1mL of catalyst stannous octoate, heating to 85 ℃, and reacting for 3 h.
(6) Chain extension: and (3) cooling the reaction kettle in the step (5) to 40 ℃, adding 0.1mol of monohydroxy acrylic acid into the reaction kettle for 1 hour in 2 times, heating to 70 ℃, and reacting for 1.5 hours under the condition of heat preservation.
(7) Emulsification: and (3) adding 250mL of deionized water into the solution obtained in the step (6) under the action of high shear force in an emulsification pump with the shear rate of 6000r/min for reverse emulsification, and simultaneously dropwise adding triethylamine for neutralization.
(8) Solvent removal: and (4) removing butanone from the emulsion obtained in the step (7) by adopting a reduced pressure low temperature distillation method to obtain the waterborne polyurethane emulsion.
(9) Mixing the emulsion: and (3) mixing 100mL of the O/W type wool keratin emulsion prepared in the step (4) with 500mL of the aqueous polyurethane emulsion prepared in the step (8), and stirring the mixed solution on a high-speed dispersion homogenizer for 0.75h at the stirring temperature of 43 ℃ to obtain the wool keratin/aqueous polyurethane composite emulsion coating agent b with the heat preservation function.
Example 3
In this embodiment, the wool keratin/aqueous polyurethane composite emulsion coating agent with a warming function is prepared by the following method, including the following steps:
(1) selecting waste wool: the waste clothes made of wool are selected, washed by a clothes washing agent, washed by a large amount of water and dried.
(2) Preparation of wool keratin solution: dissolving 10g of waste clothes treated in the step (1) in 200mL of mixed solution of tricarboxyethylphosphine and 20g of urea at 80 ℃, continuously stirring in the dissolving process, wherein the dissolving time is 6h, filtering, and concentrating to obtain a wool keratin solution, wherein the solid content of the wool keratin solution is 60.3%.
(3) Preparation of wool keratin powder: freeze-drying the wool keratin solution prepared in the step (2) on a freeze dryer at the following freezing temperature: -60 ℃ and drying time: and (4) obtaining the wool keratin powder after 18 hours.
(4) Preparation of O/W emulsion: adding 10g of wool keratin solid into a round-bottom flask, adding 100 mLN-methylmorpholine, and continuously stirring and completely dissolving the wool keratin solid at 40 ℃ on a constant-temperature electromagnetic stirrer; after the wool keratin is completely dissolved, adding 3g of span 60 into the mixed solution, and stirring to uniformly mix the mixture; the mixed solution is added into 350mL of saturated sodium dodecyl sulfate aqueous solution, and the mixture is uniformly stirred by a magnetic rotor to obtain O/W type wool keratin emulsion.
(5) Pre-polymerization: adding 0.1mol of polypropylene glycol with the molecular weight of 200 and 0.3mol of dimethylolpropionic acid into a reaction kettle, dehydrating for 1.5h under vacuum at 120 ℃, slowly cooling to 55 ℃, dropwise adding a mixed solution of 0.5mol of toluene diisocyanate, 30mL of butanone and 1mL of catalyst stannous octoate, heating to 90 ℃, and reacting for 4 h.
(6) Chain extension: and (3) cooling the reaction kettle in the step (5) to 45 ℃, adding 0.15mol of monohydroxy acrylic acid into the reaction kettle for 1.2h in 3 times, heating to 70 ℃, and reacting for 1.5h under the condition of heat preservation.
(7) Emulsification: and (3) adding 400mL of deionized water into the solution obtained in the step (6) under the action of high shear force in an emulsification pump with the shear rate of 15000r/min for reverse emulsification, and simultaneously dropwise adding triethylamine for neutralization.
(8) Solvent removal: and (4) removing butanone from the emulsion obtained in the step (7) by adopting a reduced pressure low temperature distillation method to obtain the waterborne polyurethane emulsion.
(9) Mixing the emulsion: and (3) mixing 100mL of the O/W type wool keratin emulsion prepared in the step (4) with 700mL of the aqueous polyurethane emulsion prepared in the step (8), and stirring the mixed solution on a high-speed dispersion homogenizer for 0.75h at the stirring temperature of 43 ℃ to obtain the wool keratin/aqueous polyurethane composite emulsion coating agent c with the heat preservation function.
Application performance examples:
The wool keratin/waterborne polyurethane composite emulsion coating agents a, b and c prepared in the embodiments 1-3 are used for coating finishing of cotton fabrics: tightening the cotton fabric on a tightening frame, uniformly coating the coating agent on the cotton fabric by a scraper, wherein the coating weight is 20-25 g/m in dry weight2Drying at 90 ℃ for 2 minutes, and baking at 150 ℃ for 3 minutes to prepare the cotton fabric finished by the wool keratin/waterborne polyurethane composite emulsion coating agents a, b and c.
Testing the heat preservation performance: according to the requirements of a method A in a textile thermal insulation performance test method (GB 11048-89), the insulation rate of cotton fabrics finished by the wool keratin/waterborne polyurethane composite emulsion coating agents a, b and c is tested by adopting a YG606 type flat-plate type thermal insulation instrument. During the test, a sample with the size of 300mm multiplied by 300mm is covered on a test board with the size of 250mm multiplied by 250mm, the constant temperature is kept in a power-on and power-off mode, the heating time required for keeping the constant temperature of the test board in a certain time is measured, and the sample heat preservation rate is calculated. The test results are shown in the following table:
as can be seen from the table, the heat preservation rate of the cotton fabrics finished by the wool keratin/waterborne polyurethane composite emulsion coating agents a, b and c prepared by the invention is more than 66 percent and is obviously higher than that of the cotton fabrics which are not finished. This indicates that: the wool keratin/waterborne polyurethane composite emulsion coating agents a, b and c prepared by the invention have good warm-keeping function.
Claims (1)
1. The preparation method of the wool keratin/waterborne polyurethane composite emulsion coating agent with the warm-keeping function is characterized by comprising the following steps:
(1) selecting waste wool: selecting waste clothes made of wool, cleaning the clothes with a clothes cleaning agent, cleaning with a large amount of water, and drying;
(2) preparation of wool keratin solution: dissolving the waste clothes treated in the step (1) in a mixed solution of tricarboxyethylphosphine and urea at the temperature of 60-80 ℃, continuously stirring in the dissolving process, wherein the dissolving time is 4-6 h, filtering, and concentrating to obtain a wool keratin solution, wherein the solid content of the wool keratin solution is 40-60%; the volume mass ratio of the waste wool, the tricarboxyethylphosphine and the urea is 1g to (10-20) mL to (1-2) g;
(3) preparation of wool keratin powder: freeze-drying the wool keratin solution prepared in the step (2) on a freeze dryer to prepare wool keratin powder; the freezing temperature is-50 to-60 ℃, and the drying time is 10 to 18 hours;
(4) preparation of O/W emulsion: adding wool keratin solid into a round-bottom flask, adding N-methylmorpholine, and continuously stirring and completely dissolving the wool keratin solid at 40 ℃ on a constant-temperature electromagnetic stirrer; after the wool keratin is completely dissolved, adding the mixed solution into span 60, and stirring to uniformly mix the mixed solution; adding the mixed solution into saturated sodium dodecyl sulfate aqueous solution, and uniformly stirring by using a magnetic rotor to obtain O/W type wool keratin emulsion; the solid-liquid ratio of the wool keratin to the N-methylmorpholine is 1g to (5-10) mL; the amount ratio of span 60 to N-methylmorpholine is 1-3%; the dosage ratio of the mixed solution to the saturated sodium dodecyl sulfate aqueous solution is 1mL to (2-4) mL;
(5) Pre-polymerization: adding polypropylene glycol and dimethylolpropionic acid into a reaction kettle, dehydrating for 1-2 hours in vacuum at 100-120 ℃, slowly cooling to 50-60 ℃, dropwise adding a mixed solution of toluene diisocyanate, butanone and catalyst stannous octoate, heating to 80-90 ℃, and reacting for 3-4 hours; the molecular weight of the polypropylene glycol is 200; the molar ratio of the polypropylene glycol to the dimethylolpropionic acid to the toluene diisocyanate is 1: 1-3: 3-5; the volume mass ratio of the stannous octoate to the butanone is 1mL to (20-30) mL;
(6) chain extension: cooling the reaction kettle in the step (5) to 40-45 ℃, adding monohydroxy acrylic acid for 2-4 times in 1-1.5 h, heating to 60-80 ℃, and carrying out heat preservation reaction for 1-2 h; the molar ratio of the monohydroxy acrylic acid to the dimethylolpropionic acid is 1: 1-2;
(7) emulsification: adding a certain amount of deionized water into the solution obtained in the step (6) under the action of high shear force in an emulsification pump with the shear rate of 6000-15000 r/min, carrying out reverse emulsification, and simultaneously dropwise adding triethylamine for neutralization;
(8) solvent removal: removing butanone from the emulsion obtained in the step (7) by adopting a reduced pressure low temperature distillation method to obtain a waterborne polyurethane emulsion;
(9) Mixing the emulsion: mixing the O/W type wool keratin emulsion prepared in the step (4) with the aqueous polyurethane emulsion prepared in the step (8), and stirring the mixed solution on a high-speed dispersion homogenizer for 0.5-1 h at the stirring temperature of 40-45 ℃ to obtain the wool keratin/aqueous polyurethane composite emulsion coating agent with the warm-keeping function; wherein the volume ratio of the O/W type wool keratin emulsion prepared in the step (4) to the aqueous polyurethane emulsion prepared in the step (8) is 1: 5-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910946652.7A CN110685170B (en) | 2019-10-06 | 2019-10-06 | Wool keratin/waterborne polyurethane composite emulsion coating agent with warm-keeping function and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910946652.7A CN110685170B (en) | 2019-10-06 | 2019-10-06 | Wool keratin/waterborne polyurethane composite emulsion coating agent with warm-keeping function and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110685170A CN110685170A (en) | 2020-01-14 |
| CN110685170B true CN110685170B (en) | 2022-06-07 |
Family
ID=69111347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910946652.7A Active CN110685170B (en) | 2019-10-06 | 2019-10-06 | Wool keratin/waterborne polyurethane composite emulsion coating agent with warm-keeping function and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110685170B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111471316B (en) * | 2020-03-19 | 2021-12-14 | 当阳市鸿阳新材料科技有限公司 | Extraction method of microbial pigment and method for dyeing lyocell fibers by using microbial pigment |
| CN113355914B (en) * | 2021-06-29 | 2022-07-22 | 武汉纺织大学 | Lignin-containing wool fabric shrink-proof finishing liquid and preparation method and application thereof |
| CN113622190B (en) * | 2021-08-06 | 2023-05-23 | 武汉纺织大学 | Garment imitation leather color functional yarn and preparation method thereof |
| CN115785770A (en) * | 2022-11-25 | 2023-03-14 | 武汉纺织大学 | Paint doped with wool powder and preparation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003171877A (en) * | 2001-11-30 | 2003-06-20 | Kyoeisha Chem Co Ltd | Method for treating textile product |
| CN101585903A (en) * | 2009-06-23 | 2009-11-25 | 丽水市优耐克水性树脂科技有限公司 | A kind of aqueous polyurethane and preparation method thereof |
| CN102391459A (en) * | 2011-08-25 | 2012-03-28 | 吴江市北厍盛源纺织品助剂厂 | Preparation method for modified polyurethane |
| CN104017230A (en) * | 2014-06-13 | 2014-09-03 | 东华大学 | Preparation method of polyurethane-keratin composite film |
| CN108360264A (en) * | 2018-04-04 | 2018-08-03 | 常州五荣化工有限公司 | A kind of preparation method of waterproof ventilating type weaving polyurethane coating agent |
| CN108589302A (en) * | 2018-05-28 | 2018-09-28 | 江苏阳光股份有限公司 | A kind of preparation method of wool keratin polyurethane comixing dressing liquid |
| CN109023713A (en) * | 2018-08-29 | 2018-12-18 | 佛山朝鸿新材料科技有限公司 | A kind of preparation method of superfine fiber synthetic leather base cloth |
| CN109322166A (en) * | 2018-11-20 | 2019-02-12 | 武汉纺织大学 | A kind of preparation method and application of radix saposhnikoviae dacron coating agent |
| CN109518474A (en) * | 2018-11-20 | 2019-03-26 | 武汉纺织大学 | A kind of preparation method of heat insulation type cotton fabric coating |
-
2019
- 2019-10-06 CN CN201910946652.7A patent/CN110685170B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003171877A (en) * | 2001-11-30 | 2003-06-20 | Kyoeisha Chem Co Ltd | Method for treating textile product |
| CN101585903A (en) * | 2009-06-23 | 2009-11-25 | 丽水市优耐克水性树脂科技有限公司 | A kind of aqueous polyurethane and preparation method thereof |
| CN102391459A (en) * | 2011-08-25 | 2012-03-28 | 吴江市北厍盛源纺织品助剂厂 | Preparation method for modified polyurethane |
| CN104017230A (en) * | 2014-06-13 | 2014-09-03 | 东华大学 | Preparation method of polyurethane-keratin composite film |
| CN108360264A (en) * | 2018-04-04 | 2018-08-03 | 常州五荣化工有限公司 | A kind of preparation method of waterproof ventilating type weaving polyurethane coating agent |
| CN108589302A (en) * | 2018-05-28 | 2018-09-28 | 江苏阳光股份有限公司 | A kind of preparation method of wool keratin polyurethane comixing dressing liquid |
| CN109023713A (en) * | 2018-08-29 | 2018-12-18 | 佛山朝鸿新材料科技有限公司 | A kind of preparation method of superfine fiber synthetic leather base cloth |
| CN109322166A (en) * | 2018-11-20 | 2019-02-12 | 武汉纺织大学 | A kind of preparation method and application of radix saposhnikoviae dacron coating agent |
| CN109518474A (en) * | 2018-11-20 | 2019-03-26 | 武汉纺织大学 | A kind of preparation method of heat insulation type cotton fabric coating |
Non-Patent Citations (1)
| Title |
|---|
| 端乙烯基水性聚氨酯乳液的合成研究;张晶等;《化学推进剂与高分子材料》;20121125;第10卷(第6期);第70-74页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110685170A (en) | 2020-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110685170B (en) | Wool keratin/waterborne polyurethane composite emulsion coating agent with warm-keeping function and preparation method thereof | |
| CN107043466B (en) | A kind of modification of chitosan-silicon dioxide composite aerogel material and its preparation method and application | |
| CN102031698B (en) | Preparation method of non-ironing finishing agent of modified self-crosslinking organosilicon anti-wrinkle microemulsion | |
| CN103194893B (en) | Softener and preparation method thereof | |
| CN108892414A (en) | A kind of Mobyneb swelling fiber anti-crack water-proof agent and preparation method | |
| CN103819648B (en) | The preparation method of a kind of polysiloxane modified polyurethane water dispersion | |
| CN100519925C (en) | Polyurethane synthetic leather grain surface paste and method for preparing same | |
| CN104403082B (en) | A kind of castor oil modified polyurethane color fixing agent and preparation method thereof | |
| CN110273302B (en) | Preparation method of multifunctional superfine fiber synthetic leather | |
| CN110607690A (en) | Polyacrylate-polyurethane composite emulsion with ultraviolet resistance function and preparation method and application thereof | |
| CN107902942B (en) | Animal protein foaming agent with high foaming multiple and preparation method thereof | |
| CN105133135B (en) | Bamboo fiber and fibrilia fiber blending cloth | |
| CN101941956A (en) | Glycidyl ether ester with carbon-carbon double bond, synthetic method and use thereof | |
| CN102199876A (en) | Chitosan modified nylon fabric and manufacturing method thereof | |
| CN108867085B (en) | Four-side elastic hydrolysis-resistant super-soft protein synthetic leather | |
| CN106947045B (en) | A kind of modified hemicellulose group paper strengthening agent and preparation method thereof | |
| CN107556518A (en) | Graphene oxide salix monogolica konjaku cyclodextrin composite and preparation method | |
| CN108914594A (en) | A kind of carbon fiber modifying method of surface construction dissaving structure | |
| CN107446155A (en) | A kind of nano ferriferrous oxide/three-dimensional porous the magnetic composite of salix monogolica/konjaku | |
| CN112342801A (en) | High-temperature leveling agent for polyester superfine denier fabric and preparation method thereof | |
| CN109267393B (en) | A kind of preparation method of the oil removing level dyeing compound emulsifying agent for dacron | |
| CN111005217A (en) | Preparation method of hydrophobic cloth | |
| CN110685159A (en) | Production method of water-based microfiber synthetic leather | |
| CN106279603A (en) | A kind of compound household polyurethane foam sponge pad preventing skin allergy | |
| CN107476076B (en) | Non-woven fabric for shoes and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240527 Address after: 230000 b-1018, Woye Garden commercial office building, 81 Ganquan Road, Shushan District, Hefei City, Anhui Province Patentee after: HEFEI WISDOM DRAGON MACHINERY DESIGN Co.,Ltd. Country or region after: China Address before: 430073 No. 1 Textile Road, Hongshan District, Hubei, Wuhan Patentee before: Wuhan Textile University Country or region before: China |