CN112458762B - Preparation method of fabric after-finishing agent with warm-keeping function - Google Patents
Preparation method of fabric after-finishing agent with warm-keeping function Download PDFInfo
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- CN112458762B CN112458762B CN202011376074.7A CN202011376074A CN112458762B CN 112458762 B CN112458762 B CN 112458762B CN 202011376074 A CN202011376074 A CN 202011376074A CN 112458762 B CN112458762 B CN 112458762B
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- 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
- D06N3/147—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 characterised by the isocyanates used
- D06N3/148—(cyclo)aliphatic polyisocyanates
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- 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
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- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- 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
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- 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
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6659—Compounds of group C08G18/42 with compounds of group C08G18/34
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- 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
- 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
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
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- 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
- D06N3/146—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 characterised by the macromolecular diols used
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- 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
- D06N2209/00—Properties of the materials
- D06N2209/06—Properties of the materials having thermal properties
Abstract
The invention relates to a preparation method of a fabric after-finishing agent with a warm-keeping function, belonging to the technical field of textile materials, and the preparation method comprises the following steps: uniformly mixing 400-500 parts of deionized water, 2-8 parts of dispersing agent and 2-4 parts of wetting agent, then adding 1-10 parts of nano silica aerogel, uniformly mixing, and then adding optically active polyurethane, wherein the mass ratio of the nano silica aerogel to the optically active polyurethane is 1: (5-25), adding a thickening agent and a defoaming agent after uniformly stirring, adding a stabilizing agent, an adhesive and a softener into the obtained slurry, and uniformly mixing to obtain the adhesive. The invention realizes the controllable preparation of the nano silicon dioxide aerogel, compounds the nano silicon dioxide aerogel with optically active polyurethane, adds various assistants to prepare the fabric after-finishing agent, has simple method, can effectively improve the warm keeping efficiency of the finished fabric, meets the requirements of people in extremely cold environment, and increases the water washing resistance and hand feeling of the finished fabric due to the adoption of the reactive coating assistant.
Description
Technical Field
The invention belongs to the technical field of textile materials, and particularly relates to a preparation method of a fabric after-finishing agent with a warm-keeping function.
Background
With the improvement of living standard of people, the quality requirement of people on living environment is higher and higher, and the fabric which is warm in winter and cool in summer is a permanent requirement of people on fabric. Under extreme conditions, there are many examples of physical injuries caused by cold, and how to keep self heat from losing in a low-temperature environment is a hot point of current research.
At present, a learner prepares fiber and fabric by adopting a far infrared reflection mechanism, can capture far infrared emitted by a human body and return the far infrared to the human body, reduces energy dissipation in a human body, but has strict requirements on the tissue structure of the fabric, and can realize the significance of functions only on fabric with higher density; the students also adopt a self-heating mode, a moisture absorption heating material is added in the fiber or fabric after-finishing agent, and the heating effect is achieved by absorbing water volatilized by human bodies, so that the mode is not resistant to washing and poor in heat preservation effect; there are also researchers who use materials with heating by light, such as zirconium carbide materials used earlier in japan, for the preparation of fibers, which can absorb heat from sunlight, and such materials have requirements for light and poor warming effects.
Disclosure of Invention
The invention aims to solve the defects and provides a preparation method of a fabric after-finishing agent with a warm-keeping function.
In order to solve the technical problems, the invention provides the following technical scheme:
a preparation method of a fabric after-finishing agent with a warm-keeping function comprises the following steps:
(1) Uniformly mixing 400-500 parts of deionized water, 2-8 parts of dispersing agent and 2-4 parts of wetting agent, then adding 1-10 parts of nano silica aerogel, uniformly mixing, adding optically active polyurethane, uniformly stirring, then adding 20-30 parts of thickening agent and 5-10 parts of defoaming agent, and uniformly stirring to obtain slurry; the parts are all parts by weight;
(2) And adding a stabilizer, an adhesive and a softener into the slurry, and uniformly mixing to obtain the fabric after-finishing agent with the warm-keeping function.
Further, in the step (1), the mass ratio of the nano silica aerogel to the optically active polyurethane is 1: (5-25).
Further, in the step (1), the preparation method of the nano silica aerogel comprises the following steps: tetraethyl orthosilicate, ethanol and deionized water, wherein the weight ratio of (1-4) to (1-4) is as follows: (2-8), uniformly mixing, adjusting the pH value of the mixed solution to 2.0-3.0 by using dilute hydrochloric acid, magnetically stirring the mixed solution at 35-50 ℃ for 1-3h, standing for 6-12h, adjusting the pH value to 6.5-7.5 by using ammonia water, and then aging to obtain wet gel; and (3) standing the wet gel for 16-32h, adding an n-hexane solution, standing for 6-12h, adding a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8.
The reaction route of the nano-silica aerogel is as follows:
further, in the step (1), the preparation method of the optically active polyurethane comprises the following steps: mixing isophorone diisocyanate and polycarbonate diol PCDL1000 in a molar ratio of (1-10) to 1, and reacting at 70-90 ℃ for 1-3h to obtain a prepolymer; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into the prepolymer, wherein the molar ratio of the 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1 (1-10), performing chain extension reaction at 70-90 ℃ for 1-3h, dropwise adding S-binaphthol dissolved in anhydrous tetrahydrofuran into the system, the molar ratio of the S-binaphthol to isophorone diisocyanate is 1 (1-10), performing reaction at 70-90 ℃ for 2-5h, cooling the reaction system to 45-55 ℃, adding triethylamine to neutralize carboxyl in the chain, the molar ratio of the triethylamine to isophorone diisocyanate is 1 (1-10), dropwise adding deionized water to reduce the viscosity of the product, and removing tetrahydrofuran by reduced pressure distillation to obtain the optically active polyurethane.
The reaction route of the optically active polyurethane is as follows:
further, in the step (2), the stabilizer is a phosphite ester stabilizer, and the addition amount of the stabilizer accounts for 0.1-1% of the weight of the slurry.
Further, in the step (2), the adhesive is a vinyl epoxy resin monomer, and the addition amount of the vinyl epoxy resin monomer accounts for 3-10% of the weight of the slurry.
Further, in the step (2), the softener is tannic acid, and the addition amount of the softener is 0.1-1% of the weight of the slurry.
The invention has the beneficial effects that: the invention realizes the controllable preparation of the nano-silica aerogel, compounds the nano-silica aerogel with optically active polyurethane, adds various assistants to prepare the fabric after-finishing agent, has simple method, increases the water washing resistance and hand feeling of the finished fabric due to the adoption of the reactive coating assistant, and can retain a large amount of static air which cannot be circulated due to the high porosity structure of the nano-silica aerogel, thereby achieving the effect of heat loss and high heat preservation, ensuring the heat preservation efficiency of the finished fabric to be high, and meeting the requirements of people in extremely cold environment.
Drawings
Fig. 1 is an SEM image of the nano silica aerogel prepared in example 1.
Detailed Description
The following detailed description of the embodiments of the invention is made with reference to the accompanying drawings. In the following examples, the dispersant used was SN-5040, the wetting agent was PE-100, the thickener was aqueous paint thickener ASE-60, and the defoamer was aqueous defoamer S-10, available from but not limited to Yixing, a trusted chemical company.
Example 1
Preparing nano silicon dioxide aerogel: uniformly mixing tetraethyl orthosilicate, ethanol and deionized water according to the weight ratio of 1; and (2) standing the wet gel for 24h, adding an n-hexane solution, standing for 8h, adding the wet gel into a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8. Fig. 1 is an SEM image of the nano silica aerogel prepared in example 1, and it can be seen that it has a high porosity structure.
Preparation of optically active polyurethanes: adding isophorone diisocyanate and polycarbonate diol PCDL1000 into a three-neck flask provided with a mechanical stirrer and a condenser reflux device according to a molar ratio of 10; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into a prepolymer, wherein the molar ratio of 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1.
The preparation method of the fabric after-finishing agent with the warm-keeping function comprises the following steps: pouring 450g of deionized water, 5g of dispersing agent and 3g of wetting agent into a three-neck flask, dispersing at a high speed for 10min by using a homogenizing and dispersing machine, adding 1g of nano silica aerogel, stirring at a high speed for 1h, performing ultrasonic dispersion for 30min, adding optically active polyurethane, wherein the mass ratio of the nano silica aerogel to the optically active polyurethane is 1; and adding a phosphite stabilizer accounting for 0.3 percent of the weight of the sizing agent, a binder (vinyl epoxy resin monomer) accounting for 5 percent of the weight of the sizing agent and a softener (tannic acid) accounting for 0.5 percent of the weight of the sizing agent into the sizing agent, and uniformly mixing to obtain the fabric after-finishing agent with the heat-preservation function.
Example 2
Preparing nano silicon dioxide aerogel: uniformly mixing tetraethyl orthosilicate, ethanol and deionized water according to the weight ratio of 3; and (2) standing the wet gel for 24h, adding an n-hexane solution, standing for 8h, adding the wet gel into a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8.
Preparation of optically active polyurethanes: adding isophorone diisocyanate and polycarbonate diol PCDL1000 into a three-neck flask provided with a mechanical stirrer and a condenser reflux device according to a molar ratio of 10; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into a prepolymer, wherein the molar ratio of 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1.
The preparation method of the fabric after-finishing agent with the warm-keeping function comprises the following steps: pouring 450g of deionized water, 5g of dispersing agent and 3g of wetting agent into a three-neck flask, dispersing at a high speed for 10min by using a homogenizing and dispersing machine, adding 1g of nano silica aerogel, stirring at a high speed for 1h, performing ultrasonic dispersion for 30min, adding optically active polyurethane, wherein the mass ratio of the nano silica aerogel to the optically active polyurethane is 1; and adding a phosphite stabilizer accounting for 0.3 percent of the weight of the sizing agent, a binder (vinyl epoxy resin monomer) accounting for 5 percent of the weight of the sizing agent and a softener (tannic acid) accounting for 0.5 percent of the weight of the sizing agent into the sizing agent, and uniformly mixing to obtain the fabric after-finishing agent with the heat-preservation function.
Example 3
Preparing nano silicon dioxide aerogel: uniformly mixing tetraethyl orthosilicate, ethanol and deionized water according to a weight ratio of 4; and (2) standing the wet gel for 24h, adding an n-hexane solution, standing for 8h, adding the wet gel into a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8.
Preparation of optically active polyurethanes: adding isophorone diisocyanate and polycarbonate diol PCDL1000 into a three-neck flask provided with a mechanical stirrer and a condenser reflux device according to a molar ratio of 10; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into a prepolymer, wherein the molar ratio of 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1.
The preparation method of the fabric after-finishing agent with the warm-keeping function comprises the following steps: pouring 450g of deionized water, 5g of a dispersing agent and 3g of a wetting agent into a three-neck flask, performing high-speed dispersion for 10min by using a homogenizing dispersion machine, adding 1g of nano-silica aerogel, performing high-speed stirring for 1h, performing ultrasonic dispersion for 30min, adding optically active polyurethane, wherein the mass ratio of the nano-silica aerogel to the optically active polyurethane is 1; and adding a phosphite stabilizer accounting for 0.3 percent of the weight of the sizing agent, a binder (vinyl epoxy resin monomer) accounting for 5 percent of the weight of the sizing agent and a softener (tannic acid) accounting for 0.5 percent of the weight of the sizing agent into the sizing agent, and uniformly mixing to obtain the fabric after-finishing agent with the heat-preservation function.
Example 4
Preparing nano silicon dioxide aerogel: uniformly mixing tetraethyl orthosilicate, ethanol and deionized water according to the weight ratio of 3; and (2) standing the wet gel for 24h, adding an n-hexane solution, standing for 8h, adding the wet gel into a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8 to 100, modifying for 24h at 40 ℃, taking out after modification, washing with n-hexane for three times, finally drying at 60 ℃ under normal pressure for 10h, and drying at 80 ℃ and 100 ℃ for 1h respectively to obtain the nano-silica aerogel.
Preparation of optically active polyurethanes: adding isophorone diisocyanate and polycarbonate diol PCDL1000 into a three-neck flask provided with a mechanical stirrer and a condenser reflux device according to a molar ratio of 5; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into a prepolymer, wherein the molar ratio of 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1.
The preparation method of the fabric after-finishing agent with the warm-keeping function comprises the following steps: pouring 450g of deionized water, 5g of dispersing agent and 3g of wetting agent into a three-neck flask, dispersing at a high speed for 10min by using a homogenizing and dispersing machine, adding 1g of nano silica aerogel, stirring at a high speed for 1h, performing ultrasonic dispersion for 30min, adding optically active polyurethane, wherein the mass ratio of the nano silica aerogel to the optically active polyurethane is 1; and adding a phosphite stabilizer accounting for 0.3 percent of the weight of the sizing agent, a binder (vinyl epoxy resin monomer) accounting for 5 percent of the weight of the sizing agent and a softener (tannic acid) accounting for 0.5 percent of the weight of the sizing agent into the sizing agent, and uniformly mixing to obtain the fabric after-finishing agent with the heat-preservation function.
Example 5
Preparing nano silicon dioxide aerogel: uniformly mixing tetraethyl orthosilicate, ethanol and deionized water according to the weight ratio of 3; and (2) standing the wet gel for 24h, adding an n-hexane solution, standing for 8h, adding the wet gel into a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8.
Preparation of optically active polyurethanes: adding isophorone diisocyanate and polycarbonate diol PCDL1000 into a three-neck flask with a mechanical stirrer and a condenser reflux device according to a molar ratio of 3; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into a prepolymer, wherein the molar ratio of 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1.
The preparation method of the fabric after-finishing agent with the warm-keeping function comprises the following steps: pouring 450g of deionized water, 5g of dispersing agent and 3g of wetting agent into a three-neck flask, dispersing at a high speed for 10min by using a homogenizing and dispersing machine, adding 1g of nano silica aerogel, stirring at a high speed for 1h, performing ultrasonic dispersion for 30min, adding optically active polyurethane, wherein the mass ratio of the nano silica aerogel to the optically active polyurethane is 1; and adding a phosphite stabilizer accounting for 0.3 percent of the weight of the sizing agent, a binder (vinyl epoxy resin monomer) accounting for 5 percent of the weight of the sizing agent and a softener (tannic acid) accounting for 0.5 percent of the weight of the sizing agent into the sizing agent, and uniformly mixing to obtain the fabric after-finishing agent with the heat-preservation function.
Example 6
Preparing nano silicon dioxide aerogel: uniformly mixing tetraethyl orthosilicate, ethanol and deionized water according to the weight ratio of 3; and (2) standing the wet gel for 24h, adding an n-hexane solution, standing for 8h, adding the wet gel into a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8.
Preparation of optically active polyurethanes: adding isophorone diisocyanate and polycarbonate diol PCDL1000 into a three-neck flask with a mechanical stirrer and a condenser reflux device according to a molar ratio of 2; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into a prepolymer, wherein the molar ratio of 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1.
The preparation method of the fabric after-finishing agent with the warm-keeping function comprises the following steps: pouring 450g of deionized water, 5g of dispersing agent and 3g of wetting agent into a three-neck flask, dispersing at a high speed for 10min by using a homogenizing and dispersing machine, adding 1g of nano silica aerogel, stirring at a high speed for 1h, performing ultrasonic dispersion for 30min, adding optically active polyurethane, wherein the mass ratio of the nano silica aerogel to the optically active polyurethane is 1; and adding a phosphite stabilizer accounting for 0.3 percent of the weight of the sizing agent, a binder (vinyl epoxy resin monomer) accounting for 5 percent of the weight of the sizing agent and a softener (tannic acid) accounting for 0.5 percent of the weight of the sizing agent into the sizing agent, and uniformly mixing to obtain the fabric after-finishing agent with the heat-preservation function.
Example 7
Preparing nano silicon dioxide aerogel: uniformly mixing tetraethyl orthosilicate, ethanol and deionized water according to the weight ratio of 3; and (2) standing the wet gel for 24h, adding an n-hexane solution, standing for 8h, adding the wet gel into a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8 to 100, modifying for 24h at 40 ℃, taking out after modification, washing with n-hexane for three times, finally drying at 60 ℃ under normal pressure for 10h, and drying at 80 ℃ and 100 ℃ for 1h respectively to obtain the nano-silica aerogel.
Preparation of optically active polyurethanes: adding isophorone diisocyanate and polycarbonate diol PCDL1000 into a three-neck flask provided with a mechanical stirrer and a condenser reflux device according to a molar ratio of 3; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into a prepolymer, wherein the molar ratio of 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1.
The preparation method of the fabric after-finishing agent with the warm-keeping function comprises the following steps: pouring 450g of deionized water, 5g of dispersing agent and 3g of wetting agent into a three-neck flask, dispersing at a high speed for 10min by using a homogenizing and dispersing machine, adding 1g of nano silica aerogel, stirring at a high speed for 1h, performing ultrasonic dispersion for 30min, adding optically active polyurethane, wherein the mass ratio of the nano silica aerogel to the optically active polyurethane is 1; and adding a phosphite stabilizer accounting for 0.3 percent of the weight of the sizing agent, a binder (vinyl epoxy resin monomer) accounting for 5 percent of the weight of the sizing agent and a softener (tannic acid) accounting for 0.5 percent of the weight of the sizing agent into the sizing agent, and uniformly mixing to obtain the fabric after-finishing agent with the heat-preservation function.
Example 8
Preparing nano silicon dioxide aerogel: uniformly mixing tetraethyl orthosilicate, ethanol and deionized water according to the weight ratio of 3; and (2) standing the wet gel for 24h, adding an n-hexane solution, standing for 8h, adding the wet gel into a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8.
Preparation of optically active polyurethanes: adding isophorone diisocyanate and polycarbonate diol PCDL1000 into a three-neck flask with a mechanical stirrer and a condenser reflux device according to a molar ratio of 3; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into a prepolymer, wherein the molar ratio of 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1.
The preparation method of the fabric after-finishing agent with the warm-keeping function comprises the following steps: pouring 450g of deionized water, 5g of a dispersing agent and 3g of a wetting agent into a three-neck flask, performing high-speed dispersion for 10min by using a homogenizing dispersion machine, adding 1g of nano-silica aerogel, performing high-speed stirring for 1h, performing ultrasonic dispersion for 30min, adding optically active polyurethane, wherein the mass ratio of the nano-silica aerogel to the optically active polyurethane is 1; and adding a phosphite stabilizer accounting for 0.3 percent of the weight of the sizing agent, an adhesive (vinyl epoxy resin monomer) accounting for 5 percent of the weight of the sizing agent and a softener (tannic acid) accounting for 0.5 percent of the weight of the sizing agent into the sizing agent, and uniformly mixing to obtain the fabric after-finishing agent with the warm-keeping function.
Example 9
Preparing nano silicon dioxide aerogel: uniformly mixing tetraethyl orthosilicate, ethanol and deionized water according to the weight ratio of 3; and (2) standing the wet gel for 24h, adding an n-hexane solution, standing for 8h, adding the wet gel into a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8.
Preparation of optically active polyurethanes: adding isophorone diisocyanate and polycarbonate diol PCDL1000 into a three-neck flask provided with a mechanical stirrer and a condenser reflux device according to a molar ratio of 3; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into a prepolymer, wherein the molar ratio of 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1.
The preparation method of the fabric after-finishing agent with the warm-keeping function comprises the following steps: pouring 450g of deionized water, 5g of dispersing agent and 3g of wetting agent into a three-neck flask, dispersing at a high speed for 10min by using a homogenizing and dispersing machine, adding 1g of nano silica aerogel, stirring at a high speed for 1h, performing ultrasonic dispersion for 30min, adding optically active polyurethane, wherein the mass ratio of the nano silica aerogel to the optically active polyurethane is 1; and adding a phosphite stabilizer accounting for 0.3 percent of the weight of the sizing agent, a binder (vinyl epoxy resin monomer) accounting for 5 percent of the weight of the sizing agent and a softener (tannic acid) accounting for 0.5 percent of the weight of the sizing agent into the sizing agent, and uniformly mixing to obtain the fabric after-finishing agent with the heat-preservation function.
Example 10
Preparing nano silicon dioxide aerogel: uniformly mixing tetraethyl orthosilicate, ethanol and deionized water according to the weight ratio of 3; and (2) standing the wet gel for 24h, adding an n-hexane solution, standing for 8h, adding the wet gel into a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8.
Preparation of optically active polyurethanes: adding isophorone diisocyanate and polycarbonate diol PCDL1000 into a three-neck flask with a mechanical stirrer and a condenser reflux device according to a molar ratio of 3; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into a prepolymer, wherein the molar ratio of 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1.
The preparation method of the fabric after-finishing agent with the warm-keeping function comprises the following steps: pouring 450g of deionized water, 5g of a dispersing agent and 3g of a wetting agent into a three-neck flask, performing high-speed dispersion for 10min by using a homogenizing dispersion machine, adding 3g of nano-silica aerogel, performing high-speed stirring for 1h, performing ultrasonic dispersion for 30min, adding optically active polyurethane, wherein the mass ratio of the nano-silica aerogel to the optically active polyurethane is 1; and adding a phosphite stabilizer accounting for 0.3 percent of the weight of the sizing agent, an adhesive (vinyl epoxy resin monomer) accounting for 5 percent of the weight of the sizing agent and a softener (tannic acid) accounting for 0.5 percent of the weight of the sizing agent into the sizing agent, and uniformly mixing to obtain the fabric after-finishing agent with the warm-keeping function.
Example 11
Preparing nano silicon dioxide aerogel: uniformly mixing tetraethyl orthosilicate, ethanol and deionized water according to the weight ratio of 3; and (2) standing the wet gel for 24h, adding an n-hexane solution, standing for 8h, adding the wet gel into a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8.
Preparation of optically active polyurethanes: adding isophorone diisocyanate and polycarbonate diol PCDL1000 into a three-neck flask provided with a mechanical stirrer and a condenser reflux device according to a molar ratio of 3; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into a prepolymer, wherein the molar ratio of 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1.
The preparation method of the fabric after-finishing agent with the warm-keeping function comprises the following steps: pouring 450g of deionized water, 5g of a dispersing agent and 3g of a wetting agent into a three-neck flask, performing high-speed dispersion for 10min by using a homogenizing dispersion machine, adding 6g of nano-silica aerogel, performing high-speed stirring for 1h, performing ultrasonic dispersion for 30min, adding optically active polyurethane, wherein the mass ratio of the nano-silica aerogel to the optically active polyurethane is 1; and adding a phosphite stabilizer accounting for 0.3 percent of the weight of the sizing agent, a binder (vinyl epoxy resin monomer) accounting for 5 percent of the weight of the sizing agent and a softener (tannic acid) accounting for 0.5 percent of the weight of the sizing agent into the sizing agent, and uniformly mixing to obtain the fabric after-finishing agent with the heat-preservation function.
Example 12
Preparing nano silicon dioxide aerogel: uniformly mixing tetraethyl orthosilicate, ethanol and deionized water according to the weight ratio of 3; and (2) standing the wet gel for 24h, adding an n-hexane solution, standing for 8h, adding the wet gel into a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8.
Preparation of optically active polyurethanes: adding isophorone diisocyanate and polycarbonate diol PCDL1000 into a three-neck flask provided with a mechanical stirrer and a condenser reflux device according to a molar ratio of 3; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into a prepolymer, wherein the molar ratio of 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1.
The preparation method of the fabric after-finishing agent with the warm-keeping function comprises the following steps: pouring 450g of deionized water, 5g of dispersing agent and 3g of wetting agent into a three-neck flask, dispersing at a high speed for 10min by using a homogenizing and dispersing machine, adding 9g of nano silica aerogel, stirring at a high speed for 1h, performing ultrasonic dispersion for 30min, adding optically active polyurethane, wherein the mass ratio of the nano silica aerogel to the optically active polyurethane is 1; and adding a phosphite stabilizer accounting for 0.3 percent of the weight of the sizing agent, an adhesive (vinyl epoxy resin monomer) accounting for 5 percent of the weight of the sizing agent and a softener (tannic acid) accounting for 0.5 percent of the weight of the sizing agent into the sizing agent, and uniformly mixing to obtain the fabric after-finishing agent with the warm-keeping function.
Application test:
the fabric after-finishing agent prepared in the example is used for after-finishing woven fabric in a coating mode, and the using amount is 20g/m 2 After drying, testing the heat preservation efficiency, the heat transfer coefficient, the Crohn value and the water washing resistance of the fabric, wherein the test method of the heat preservation efficiency, the heat transfer coefficient and the Crohn value refers to GB/T11048-1989, and the water washing resistance adopts AATCC standard special purpose
The 0 series automatic washing machine is tested according to the AATCC 135 modification standard, repeated washing is carried out for 5 times, then a cloth sample is taken out, dried and measured for hydrostatic pressure resistance after washing; and (3) hydrostatic pressure resistance test: the water permeability was measured using a digital water permeability measuring instrument model YG (B) 812D-20 from Rongy textile Instrument Ltd, wenzhou, performed according to GB/T4744-1997 by placing the coated side of the coated fabric against water and slowly increasing the water pressure until the 3 rd bead on the non-coated side of the cloth was stopped, and the average was measured 5 times per sample and averaged.
The test results are shown in table 1:
TABLE 1
The test data in table 1 show that the fabric after-finishing agent prepared by the embodiment of the invention can obviously improve the heat preservation efficiency of the fabric, and the finished fabric has excellent heat preservation performance and water washing resistance.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (4)
1. A preparation method of a fabric after-finishing agent with a warm-keeping function is characterized by comprising the following steps:
(1) Uniformly mixing 400-500 parts of deionized water, 2-8 parts of dispersing agent and 2-4 parts of wetting agent, then adding 1-10 parts of nano silica aerogel, uniformly mixing, adding optically active polyurethane, uniformly stirring, then adding 20-30 parts of thickening agent and 5-10 parts of defoaming agent, and uniformly stirring to obtain slurry; the parts are all parts by weight; the mass ratio of the nano silica aerogel to the optically active polyurethane is 1: (5-25);
(2) Adding a stabilizer, an adhesive and a softener into the slurry, and uniformly mixing to obtain a fabric after-finishing agent with a heat preservation function;
in the step (1), the preparation method of the nano silica aerogel comprises the following steps: tetraethyl orthosilicate, ethanol and deionized water are mixed according to the weight ratio of (1-4) to (1-4): (2-8), uniformly mixing, adjusting the pH value of the mixed solution to 2.0-3.0 by using dilute hydrochloric acid, magnetically stirring the mixed solution at 35-50 ℃ for 1-3h, standing for 6-12h, adjusting the pH value to 6.5-7.5 by using ammonia water, and then aging to obtain wet gel; standing the wet gel for 16-32h, adding an n-hexane solution, standing for 6-12h, adding into a mixed solution of n-hexane and methyltriethoxysilane in a volume ratio of 8;
in the step (1), the preparation method of the optically active polyurethane comprises the following steps: mixing isophorone diisocyanate and polycarbonate diol PCDL1000 in a molar ratio of (1-10) to 1, and reacting at 70-90 ℃ for 1-3h to obtain a prepolymer; adding 2, 2-dimethylolpropionic acid and a catalyst dibutyltin dilaurate into a prepolymer, wherein the molar ratio of the 2, 2-dimethylolpropionic acid to isophorone diisocyanate is 1 (1-10), performing chain extension reaction at 70-90 ℃ for 1-3h, dropwise adding S-binaphthol dissolved in anhydrous tetrahydrofuran into the system, the molar ratio of the S-binaphthol to isophorone diisocyanate is 1 (1-10), performing reaction at 70-90 ℃ for 2-5h, cooling the reaction system to 45-55 ℃, adding triethylamine to neutralize carboxyl groups in the chain, the molar ratio of the triethylamine to the isophorone diisocyanate is 1 (1-10), dropwise adding deionized water to reduce the viscosity of the product, and removing tetrahydrofuran by reduced pressure distillation to obtain the optically active polyurethane.
2. The method for preparing the fabric after-finishing agent with the warm-keeping function according to claim 1, wherein in the step (2), the stabilizer is a phosphite stabilizer, and the adding amount of the stabilizer accounts for 0.1-1% of the weight of the slurry.
3. The method for preparing the fabric finishing agent with the function of keeping warm according to claim 1, wherein in the step (2), the adhesive is vinyl epoxy resin monomer, and the addition amount of the vinyl epoxy resin monomer accounts for 3-10% of the weight of the sizing agent.
4. A method for preparing a fabric after-finishing agent with a warm-keeping function according to any one of claims 1 to 3, wherein in the step (2), the softener is tannic acid, and the addition amount of the softener is 0.1-1% of the weight of the pulp.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696260A (en) * | 2009-10-12 | 2010-04-21 | 东南大学 | Polarimetric polyurethane-urea infrared low emissivity material and preparation method thereof |
| CN103289051A (en) * | 2013-04-07 | 2013-09-11 | 江苏大学 | Preparation and application of optically rotating azo polyurethane thermo-optical material |
| CN108455619A (en) * | 2018-05-25 | 2018-08-28 | 盐城工学院 | Hydrophobicity SiO2Aeroge synthesis technology |
| CN110983795A (en) * | 2019-12-11 | 2020-04-10 | 厦门安踏体育用品有限公司 | Aerogel thermal insulation coating fabric and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102023531B1 (en) * | 2015-04-07 | 2019-09-24 | 주식회사 엘지화학 | Aerogel containing composition and thermal insulation blanket prepared by using the same |
-
2020
- 2020-11-30 CN CN202011376074.7A patent/CN112458762B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696260A (en) * | 2009-10-12 | 2010-04-21 | 东南大学 | Polarimetric polyurethane-urea infrared low emissivity material and preparation method thereof |
| CN103289051A (en) * | 2013-04-07 | 2013-09-11 | 江苏大学 | Preparation and application of optically rotating azo polyurethane thermo-optical material |
| CN108455619A (en) * | 2018-05-25 | 2018-08-28 | 盐城工学院 | Hydrophobicity SiO2Aeroge synthesis technology |
| CN110983795A (en) * | 2019-12-11 | 2020-04-10 | 厦门安踏体育用品有限公司 | Aerogel thermal insulation coating fabric and preparation method thereof |
Non-Patent Citations (5)
| Title |
|---|
| 刘洪丽等.聚氨酯增强二氧化硅气凝胶常压干燥制备及其性能.《人工晶体学报》.2015,(第12期), * |
| 南秋利等.新型含联萘基团的旋光聚氨酯的制备与性能表征.《高等学校化学学报》.2007,(第07期), * |
| 王昕等.TiO_2/SiO_2气凝胶隔热涂层帐篷材料的制备.《印染》.2020,(第01期), * |
| 田骏等.二氧化硅气凝胶/聚氨酯隔热材料的研究.《玻璃钢/复合材料》.2018,(第03期), * |
| 肖芸芸等.聚氨酯基气凝胶隔热材料研究进展.《材料导报》.2018, * |
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