CN110685155A - Quick-drying type crosslinked polyacrylic acid textile size and preparation method thereof - Google Patents
Quick-drying type crosslinked polyacrylic acid textile size and preparation method thereof Download PDFInfo
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- CN110685155A CN110685155A CN201910963787.4A CN201910963787A CN110685155A CN 110685155 A CN110685155 A CN 110685155A CN 201910963787 A CN201910963787 A CN 201910963787A CN 110685155 A CN110685155 A CN 110685155A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
- D06M15/273—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof of unsaturated carboxylic esters having epoxy groups
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/285—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acid amides or imides
- D06M15/29—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acid amides or imides containing a N-methylol group or an etherified N-methylol group; containing a N-aminomethylene group; containing a N-sulfidomethylene group
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Abstract
The invention relates to a quick-drying cross-linked polyacrylic acid textile size and a preparation method thereof, wherein the size comprises 18-25% of acrylate, 4-6% of methyl methacrylate, 2-4% of methacrylic acid, 1-3% of a cross-linking agent, 0.1-0.2% of ammonium persulfate, 0.2-0.3% of sodium dodecyl sulfate, 0.6-0.8% of alkylphenol polyoxyethylene, 0.05-0.1% of sodium bicarbonate, 2-3% of ammonia water and 60-70% of deionized water, and the sum of the contents of the components is 100%. Acrylic ester is used as a main monomer, ammonium persulfate is used as an initiator, sodium dodecyl sulfate and alkylphenol polyoxyethylene are used as a compound emulsifier, a cross-linking agent realizes chemical cross-linking in the monomer polymerization process, and the quick-drying cross-linked polyacrylic acid textile size is synthesized by monomer pre-emulsification and seed emulsion polymerization; the particles are fine and smooth, the average particle size is small, and the viscosity is 3-5 mPa & s.
Description
Technical Field
The invention belongs to the technical field of textile size, and relates to a quick-drying type crosslinked polyacrylic acid textile size and a preparation method of the quick-drying type crosslinked polyacrylic acid textile size.
Background
The warp needs to be sized before weaving, so that the warp can withstand the repeated friction action of a dropper, a heddle, a reed, adjacent yarns and the like during weaving, and good warp sizing is an important prerequisite for normal operation of a loom, improvement of efficiency and guarantee of product quality. The heat energy consumed by sizing accounts for 50% of the heat energy consumption of cotton textile plants, and the air consumption of the sizing process is a main factor of the sizing cost, so that the reduction of the sizing heat energy consumption is an important technical problem to be solved urgently in the textile industry.
The heat energy required during slashing comprises heat energy consumed by slashing during slashing and heat energy consumed in the drying process of the slashing machine, wherein the heat energy consumed by slashing accounts for about 20-30% of the heat energy consumption of slashing, the temperature of a slashing barrel is reduced at present, and remarkable effect is achieved in medium-low temperature slashing; the heat energy consumed by drying accounts for 70-80% of the whole slashing energy consumption, and is the main body of the slashing heat energy consumption, and a plurality of technical problems still exist in the prior art of realizing the obvious reduction of the slashing energy consumption through the design of the quick-drying size.
Disclosure of Invention
The invention aims to provide a quick-drying type crosslinked polyacrylic acid textile size, and the size can shorten the slashing drying time and improve the drying efficiency.
The invention also aims to provide a preparation method of the quick-drying crosslinked polyacrylic acid textile size.
The first technical scheme adopted by the invention is as follows: a fast-drying cross-linked polyacrylic acid textile size comprises 18-25% of acrylic ester, 4-6% of methyl methacrylate, 2-4% of methacrylic acid, 1-3% of a cross-linking agent, 0.1-0.2% of ammonium persulfate, 0.2-0.3% of sodium dodecyl sulfate, 0.6-0.8% of alkylphenol polyoxyethylene, 0.05-0.1% of sodium bicarbonate, 2-3% of ammonia water and 60-70% of deionized water, wherein the sum of the contents of the components is 100%.
One feature of the present invention is:
the acrylate is one or more of methyl acrylate, ethyl acrylate and butyl acrylate.
The cross-linking agent is one or more of Glycidyl Methacrylate (GMA), N-hydroxymethyl acrylamide (N-MA) and Ethylene Glycol Dimethacrylate (EGDMA).
The other technical scheme adopted by the invention is as follows: a preparation method of a quick-drying type crosslinked polyacrylic acid textile size is implemented according to the following steps:
step 1, weighing 18-25% of acrylic ester, 4-6% of methyl methacrylate, 2-4% of methacrylic acid, 1-3% of a cross-linking agent, 0.1-0.2% of ammonium persulfate, 0.2-0.3% of sodium dodecyl sulfate, 0.6-0.8% of alkylphenol polyoxyethylene, 0.05-0.10% of sodium bicarbonate, 2-3% of ammonia water and 60-70% of deionized water, wherein the sum of the mass of the components is 100%;
step 2, 5 parts of lauryl sodium sulfate, 5 parts of alkylphenol ethoxylates and 5 parts of deionized water in the step 1 are uniformly distributed;
step 3, adding 1 part of sodium dodecyl sulfate, 1 part of alkylphenol polyoxyethylene and sodium bicarbonate into 1 part of deionized water, and stirring until the sodium dodecyl sulfate, the alkylphenol polyoxyethylene and the sodium bicarbonate are completely dissolved to serve as a kettle bottom solution;
step 4, taking 1 part of deionized water, adding ammonium persulfate, and stirring until the ammonium persulfate is completely dissolved to obtain an initiator aqueous solution;
step 5, mixing the acrylic ester, the methyl methacrylate, the methacrylic acid, the cross-linking agent, the rest 4 parts of sodium dodecyl sulfate, 4 parts of alkylphenol ethoxylates and 3 parts of deionized water, and emulsifying at a high speed to obtain a white pre-emulsion;
step 6, sequentially adding and mixing the kettle bottom liquid prepared in the step 3, the aqueous solution of the initiator with the total mass of 20% prepared in the step 4 and the pre-emulsion with the total mass of 20% prepared in the step 5, stirring and heating until the temperature is 75-80 ℃, and reacting to prepare seed emulsion;
step 7, simultaneously dropwise adding the initiator aqueous solution accounting for 80% of the residual total mass and the pre-emulsion accounting for 80% of the residual total mass into the seed emulsion while stirring at the temperature of 75-80 ℃, heating to 85 ℃ after dropwise adding, and preserving heat; and (3) cooling to 40-45 ℃, adding the ammonia water weighed in the step (1), adjusting the pH value, stirring again, filtering and discharging to obtain the textile size.
Another feature of the present invention is:
stirring speed in the step 6 is 200-250 r/min; the reaction time is 30-40 min.
The dripping time in the step 7 is 2-2.5 h, and the heat preservation time is 1.5-2 h.
The pH value in the step 7 is 6-7; the secondary stirring time is 30-40 min, and the secondary stirring speed is 200-250 r/min.
In the step 1, the acrylate is one or more of methyl acrylate, ethyl acrylate and butyl acrylate.
In the step 1, the cross-linking agent is one or more of Glycidyl Methacrylate (GMA), N-hydroxymethyl acrylamide (N-MA) and Ethylene Glycol Dimethacrylate (EGDMA).
The invention has the beneficial effects that:
the invention prepares a quick-drying type crosslinked polyacrylic acid textile size, based on the structural design and development of the crosslinked polyacrylic acid textile size, the quick-drying characteristic is realized, the prepared textile size with a crosslinked structure has fine and smooth particles, small average particle size and viscosity of 3-5 mPa & s, can quickly form a film, greatly improves the slashing drying efficiency, and effectively reduces the slashing energy consumption.
The invention relates to a preparation method of a quick-drying type crosslinked polyacrylic acid textile size, which adopts acrylic ester as a main monomer, ammonium persulfate as an initiator and sodium dodecyl sulfate and alkylphenol polyoxyethylene as a compound emulsifier, utilizes a crosslinking agent to realize chemical crosslinking in the monomer polymerization process, and synthesizes the quick-drying type crosslinked polyacrylic acid textile size by a preparation method of monomer pre-emulsification and seed emulsion polymerization. The prepared slurry has high monomer conversion rate and simple and convenient operation flow, and can realize large-scale automatic production. The preparation method has the advantages of wide raw material source, moderate price and good quality.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
A quick-drying cross-linked polyacrylic acid textile size comprises 18-25% of acrylic ester, 4-6% of methyl methacrylate, 2-4% of methacrylic acid, 1-3% of a cross-linking agent, 0.1-0.2% of ammonium persulfate, 0.2-0.3% of sodium dodecyl sulfate, 0.6-0.8% of alkylphenol polyoxyethylene, 0.05-0.1% of sodium bicarbonate, 2-3% of ammonia water and 60-70% of deionized water, wherein the sum of the contents of the components is 100%.
The acrylate is one or more of methyl acrylate, ethyl acrylate or butyl acrylate.
The cross-linking agent is one or more of Glycidyl Methacrylate (GMA), N-hydroxymethyl acrylamide (N-MA) or Ethylene Glycol Dimethacrylate (EGDMA).
A preparation method of a quick-drying type crosslinked polyacrylic acid textile size specifically comprises the following steps:
step 1: weighing raw materials according to the following formula, wherein the raw materials comprise 18-25% of acrylate, 4-6% of methyl methacrylate, 2-4% of methacrylic acid, 1-3% of cross-linking agent, 0.1-0.2% of ammonium persulfate, 0.2-0.3% of sodium dodecyl sulfate, 0.6-0.8% of alkylphenol polyoxyethylene, 0.05-0.10% of sodium bicarbonate, 2-3% of ammonia water and 60-70% of deionized water, and the sum of the contents of the components is 100%;
step 2, 5 parts of lauryl sodium sulfate, 5 parts of alkylphenol ethoxylates and 5 parts of deionized water in the step 1 are uniformly distributed;
step 3, adding 1 part of sodium dodecyl sulfate, 1 part of alkylphenol polyoxyethylene and sodium bicarbonate into 1 part of deionized water, and stirring until the sodium dodecyl sulfate, the alkylphenol polyoxyethylene and the sodium bicarbonate are completely dissolved to serve as a kettle bottom solution;
step 4, taking 1 part of deionized water, adding ammonium persulfate, and stirring until the ammonium persulfate is completely dissolved to obtain an initiator aqueous solution;
step 5, mixing the acrylic ester, the methyl methacrylate, the methacrylic acid, the cross-linking agent, the rest 4 parts of sodium dodecyl sulfate, 4 parts of alkylphenol ethoxylates and 3 parts of deionized water, and emulsifying at a high speed to obtain a white pre-emulsion;
step 6, sequentially adding the kettle bottom liquid prepared in the step 3, the aqueous solution of the initiator with the total mass of 20% prepared in the step 4 and the pre-emulsion with the total mass of 20% prepared in the step 5 into a reaction kettle, and heating while stirring until the temperature is 75-80 ℃ to perform reaction to prepare seed emulsion;
step 7, simultaneously dripping the initiator aqueous solution with the residual total mass of 80% and the pre-emulsion with the residual total mass of 80% into the seed emulsion to promote the continuous growth of the emulsion particles of the seed emulsion; stirring while dropwise adding, keeping the temperature at 75-80 ℃, after dropwise adding, heating to 85 ℃, and keeping the temperature for 1.5-2 hours; and (3) cooling to 40-45 ℃, adding the ammonia water weighed in the step (1), adjusting the pH value, stirring again, filtering and discharging to obtain the quick-drying textile size.
And 5, high-speed emulsification adopts a high-shear dispersing and emulsifying machine.
The reaction time in the step 6 is 30-40 min.
And in the step 7, the dripping time is 2-2.5 h.
The pH value in the step 7 is 6-7.
And 7, stirring for 30-40 min again.
The stirring speed in the step 6 and the step 7 is 200-250 rpm.
The invention synthesizes the quick-drying crosslinking polyacrylic acid textile size by using the preparation methods of monomer pre-emulsification and seed emulsion polymerization. Based on the structural design and development of the crosslinked polyacrylic acid textile size, the rapid drying characteristic of the textile size is realized, the prepared textile size with the crosslinked structure has fine particles, small average particle size and viscosity of 3-5 mPa & s, can be rapidly formed into a film, greatly improves the sizing drying efficiency, and effectively reduces the sizing energy consumption.
Example 1
A fast-drying cross-linked polyacrylic acid textile size comprises 20g of methyl acrylate, 30g of butyl acrylate, 8g of methyl methacrylate, 6g of methacrylic acid, 4g of glycidyl methacrylate, 0.4g of ammonium persulfate, 0.5g of sodium dodecyl sulfate, 1.4g of alkylphenol polyoxyethylene, 0.2g of sodium bicarbonate, 6g of ammonia water and 123g of deionized water.
The preparation method is implemented according to the following steps:
step 1, weighing 20g of methyl acrylate, 30g of butyl acrylate, 8g of methyl methacrylate, 6g of methacrylic acid, 4g of glycidyl methacrylate, 0.4g of ammonium persulfate, 0.5g of sodium dodecyl sulfate, 1.4g of alkylphenol ethoxylates, 0.2g of sodium bicarbonate, 6g of 28% ammonia water and 123g of deionized water;
step 2, 5 parts of lauryl sodium sulfate, 5 parts of alkylphenol ethoxylates and 5 parts of deionized water are uniformly distributed;
step 3, adding 1 part of sodium dodecyl sulfate, 1 part of alkylphenol ethoxylates and sodium bicarbonate into 1 part of deionized water, and stirring until the sodium dodecyl sulfate, the alkylphenol ethoxylates and the sodium bicarbonate are completely dissolved to serve as a kettle bottom solution;
step 4, taking 1 part of deionized water, adding ammonium persulfate, and stirring until the ammonium persulfate is completely dissolved to obtain an initiator aqueous solution;
step 5, pouring methyl acrylate, butyl acrylate, methyl methacrylate, methacrylic acid, glycidyl methacrylate, the rest 4 parts of sodium dodecyl sulfate, 4 parts of alkylphenol ethoxylates and 3 parts of deionized water into a beaker, and emulsifying at high speed by using a high-shear dispersion emulsifying machine to prepare a white pre-emulsion;
step 6, sequentially adding the kettle bottom solution prepared in the step 3, the initiator aqueous solution with the total mass of 20% prepared in the step 4 and the pre-emulsion with the total mass of 20% prepared in the step 5 into a reaction kettle under the condition of stirring, heating to 80 ℃, reacting for 35min at the stirring speed of 200 revolutions per minute, and completing granulation to obtain seed emulsion;
step 7, simultaneously dripping the residual initiator aqueous solution with the total mass of 80% and the pre-emulsion with the total mass of 80% into the seed emulsion, continuously stirring in the dripping process within 2 hours at the stirring speed of 200 rpm, keeping the temperature at 75 ℃, heating to 85 ℃ after finishing dripping, and preserving heat for 1.5 hours; and cooling to 45 ℃, adding the ammonia water weighed in the step 1, adjusting the pH to 6.5, stirring for 35min, filtering and discharging to obtain the quick-drying textile size.
The average particle size of the prepared quick-drying textile size is 244nm, the viscosity is 4.32 mPa.s when the quick-drying textile size is diluted to 25%, 1.0g of the quick-drying textile size and 25% of the quick-drying textile size are weighed and placed in a 120 ℃ moisture tester for drying treatment, the drying area is pi multiplied by 65mm, and the drying time is 6.8 min.
Example 2
A fast-drying cross-linked polyacrylic acid textile size comprises 18g of methyl acrylate, 18g of butyl acrylate, 12g of methyl methacrylate, 4g of methacrylic acid, 2g of glycidyl methacrylate, 0.2g of ammonium persulfate, 0.4g of sodium dodecyl sulfate, 1.2g of alkylphenol polyoxyethylene, 0.1g of sodium bicarbonate, 4g of ammonia water and 140g of deionized water.
The preparation method is implemented according to the following steps:
step 1, 18g of methyl acrylate, 18g of butyl acrylate, 12g of methyl methacrylate, 4g of methacrylic acid, 2g of glycidyl methacrylate, 0.2g of ammonium persulfate, 0.4g of sodium dodecyl sulfate, 1.2g of alkylphenol ethoxylates, 0.1g of sodium bicarbonate, 4g of ammonia water and 140g of deionized water;
step 2, 5 parts of lauryl sodium sulfate, 5 parts of alkylphenol ethoxylates and 5 parts of deionized water are uniformly distributed;
step 3, adding 1 part of sodium dodecyl sulfate, 1 part of alkylphenol ethoxylates and sodium bicarbonate into 1 part of deionized water, and stirring until the sodium dodecyl sulfate, the alkylphenol ethoxylates and the sodium bicarbonate are completely dissolved to serve as a kettle bottom solution;
step 4, taking 1 part of deionized water, adding ammonium persulfate, and stirring until the ammonium persulfate is completely dissolved to obtain an initiator aqueous solution;
step 5, pouring methyl acrylate, butyl acrylate, methyl methacrylate, methacrylic acid, glycidyl methacrylate, 4 parts of sodium dodecyl sulfate, 4 parts of alkylphenol ethoxylates and 3 parts of deionized water into a beaker, and emulsifying at high speed by using a high-shear dispersion emulsifying machine to prepare a white pre-emulsion;
step 6, sequentially adding the kettle bottom solution prepared in the step 3, the initiator aqueous solution with the total mass of 20% prepared in the step 4 and the pre-emulsion with the total mass of 20% prepared in the step 5 into a reaction kettle under the condition of stirring, heating to 78 ℃, reacting for 30min at the stirring speed of 210 rpm, and completing granulation to obtain seed emulsion;
step 7, simultaneously dripping the initiator aqueous solution with the residual total mass of 80% and the pre-emulsion with the residual total mass of 80% into the reaction kettle, finishing dripping within 2.3h, continuously stirring at the stirring speed of 210 rpm during the dripping process, keeping the temperature at 78 ℃, heating to 85 ℃ after finishing dripping, and preserving heat for 2 h; and (3) cooling to 43 ℃, adding the ammonia water weighed in the step (1), adjusting the pH to 6.8, stirring for 30min, filtering and discharging to obtain the quick-drying textile size.
The average particle size of the emulsion of the prepared quick-drying textile size is 231nm, the viscosity is 3.86 mPa.s when the quick-drying textile size is diluted to 25%, 1.0g of 25% concentration emulsion is weighed and placed in a 120 ℃ moisture tester for drying treatment, the drying area is pi multiplied by 65mm, and the drying time is 7.0 min.
Example 3
A quick-drying cross-linked polyacrylic acid textile size comprises 14g of methyl acrylate, 30g of ethyl acrylate, 10g of methyl methacrylate, 8g of methacrylic acid, 6g of N-hydroxymethyl acrylamide, 0.3g of ammonium persulfate, 0.6g of sodium dodecyl sulfate, 1.6g of alkylphenol polyoxyethylene, 0.15g of sodium bicarbonate, 5g of ammonia water and 124g of deionized water.
The preparation method is implemented according to the following steps:
step 1, weighing 14g of methyl acrylate, 30g of ethyl acrylate, 10g of methyl methacrylate, 8g of methacrylic acid, 6g of N-hydroxymethyl acrylamide, 0.3g of ammonium persulfate, 0.6g of sodium dodecyl sulfate, 1.6g of alkylphenol ethoxylates, 0.15g of sodium bicarbonate, 5g of ammonia water and 124g of deionized water;
step 2, 5 parts of lauryl sodium sulfate, 5 parts of alkylphenol ethoxylates and 5 parts of deionized water are uniformly distributed;
step 3, adding 1 part of sodium dodecyl sulfate, 1 part of alkylphenol ethoxylates and sodium bicarbonate into 1 part of deionized water, and stirring until the sodium dodecyl sulfate, the alkylphenol ethoxylates and the sodium bicarbonate are completely dissolved to serve as a kettle bottom solution;
step 4, taking 1 part of deionized water, adding ammonium persulfate, and stirring until the ammonium persulfate is completely dissolved to obtain an initiator aqueous solution;
step 5, pouring methyl acrylate, butyl acrylate, methyl methacrylate, methacrylic acid, glycidyl methacrylate, the rest 4 parts of sodium dodecyl sulfate, 4 parts of alkylphenol ethoxylates and 3 parts of deionized water into a beaker, and emulsifying at high speed by using a high-shear dispersion emulsifying machine to prepare a white pre-emulsion;
step 6, sequentially adding the kettle bottom solution prepared in the step 3, the initiator aqueous solution with the total mass of 20% prepared in the step 4 and the pre-emulsion with the total mass of 20% prepared in the step 5 into a reaction kettle under the condition of stirring, heating to 77 ℃, reacting for 30min at the stirring speed of 230 revolutions per minute, and completing granulation to obtain seed emulsion;
step 7, simultaneously dripping the residual initiator aqueous solution with the total mass of 80% and the residual pre-emulsion with the total mass of 80% into the reaction kettle, finishing dripping within 2 hours, continuously stirring in the dripping process, keeping the stirring speed at 230 rpm, keeping the temperature at 77 ℃, heating to 85 ℃ after finishing dripping, and preserving heat for 1.5 hours; and cooling to 45 ℃, adding the ammonia water weighed in the step 1, adjusting the pH value to 7, stirring for 30min, filtering and discharging to obtain the quick-drying textile size.
The average particle size of the emulsion of the prepared quick-drying textile size is 220nm, the viscosity is 4.55 mPa.s when the quick-drying textile size is diluted to 25%, 1.0g of the emulsion with the concentration of 25% is weighed and placed in a 120 ℃ moisture tester for drying treatment, the drying area is pi multiplied by 65mm, and the drying time is 6.5 min.
Example 4
A quick-drying cross-linked polyacrylic acid textile size comprises 10g of methyl acrylate, 30g of ethyl acrylate, 10g of methyl methacrylate, 6g of methacrylic acid, 3g of glycidyl methacrylate, 0.3g of ammonium persulfate, 0.5g of sodium dodecyl sulfate, 1.5g of alkylphenol ethoxylates, 0.2g of sodium bicarbonate, 6g of ammonia water and 132g of deionized water.
The preparation method is implemented according to the following steps:
step 1, 10g of methyl acrylate, 30g of ethyl acrylate, 10g of methyl methacrylate, 6g of methacrylic acid, 3g of glycidyl methacrylate, 0.3g of ammonium persulfate, 0.5g of sodium dodecyl sulfate, 1.5g of alkylphenol ethoxylates, 0.2g of sodium bicarbonate, 6g of ammonia water and 132g of deionized water;
step 2, 5 parts of lauryl sodium sulfate, 5 parts of alkylphenol ethoxylates and 5 parts of deionized water are uniformly distributed;
step 3, adding 1 part of sodium dodecyl sulfate, 1 part of alkylphenol ethoxylates and sodium bicarbonate into 1 part of deionized water, and stirring until the sodium dodecyl sulfate, the alkylphenol ethoxylates and the sodium bicarbonate are completely dissolved to serve as a kettle bottom solution;
step 4, taking 1 part of deionized water, adding ammonium persulfate, and stirring until the ammonium persulfate is completely dissolved to obtain an initiator aqueous solution;
step 5, pouring methyl acrylate, butyl acrylate, methyl methacrylate, methacrylic acid, glycidyl methacrylate, the rest 4 parts of sodium dodecyl sulfate, 4 parts of alkylphenol ethoxylates and 3 parts of deionized water into a beaker, and emulsifying at high speed by using a high-shear dispersion emulsifying machine to prepare a white pre-emulsion;
step 6, sequentially adding the kettle bottom solution prepared in the step 3, the initiator aqueous solution with the total mass of 20% prepared in the step 4 and the pre-emulsion with the total mass of 20% prepared in the step 5 into a reaction kettle under the condition of stirring, heating to 80 ℃, reacting for 30min at the stirring speed of 220 rpm, and completing granulation to obtain seed emulsion;
step 7, simultaneously dripping the residual initiator aqueous solution accounting for 80 percent of the total mass and the residual pre-emulsion accounting for 80 percent of the total mass into the reaction kettle, finishing dripping within 2.4 hours, continuously stirring in the dripping process, keeping the stirring speed at 220 rpm, keeping the temperature at 80 ℃, heating to 85 ℃ after finishing dripping, and preserving heat for 2 hours; and cooling to 45 ℃, adding the ammonia water weighed in the step 1, adjusting the pH to 6.7, stirring for 40min, filtering and discharging to obtain the quick-drying textile size.
The average particle size of the emulsion of the prepared quick-drying textile size is 215nm, the viscosity is 4.76 mPa.s when the quick-drying textile size is diluted to 25%, 1.0g of the emulsion with the concentration of 25% is weighed and placed in a 120 ℃ moisture tester for drying treatment, the drying area is pi multiplied by 65mm, and the drying time is 6.0 min.
The embodiments show that the quick-drying textile size prepared by the method provided by the invention has the advantages of small average particle size, fine size particles, moderate viscosity and high drying speed, and can effectively improve the slashing drying efficiency and reduce the energy consumption.
Claims (9)
1. A quick-drying type crosslinked polyacrylic acid textile size is characterized in that: the sizing agent comprises 18-25% of acrylate, 4-6% of methyl methacrylate, 2-4% of methacrylic acid, 1-3% of a cross-linking agent, 0.1-0.2% of ammonium persulfate, 0.2-0.3% of sodium dodecyl sulfate, 0.6-0.8% of alkylphenol polyoxyethylene, 0.05-0.1% of sodium bicarbonate, 2-3% of ammonia water and 60-70% of deionized water, wherein the sum of the contents of the components is 100%.
2. The quick drying crosslinked polyacrylic textile size according to claim 1, characterized in that: the acrylate is one or more of methyl acrylate, ethyl acrylate and butyl acrylate.
3. The quick drying crosslinked polyacrylic textile size according to claim 1, characterized in that: the cross-linking agent is one or more of Glycidyl Methacrylate (GMA), N-hydroxymethyl acrylamide (N-MA) and Ethylene Glycol Dimethacrylate (EGDMA).
4. A preparation method of a quick-drying type crosslinked polyacrylic acid textile size, which is based on the quick-drying type crosslinked polyacrylic acid textile size of claim 1, and the preparation method is implemented according to the following steps:
step 1, weighing 18-25% of acrylic ester, 4-6% of methyl methacrylate, 2-4% of methacrylic acid, 1-3% of a cross-linking agent, 0.1-0.2% of ammonium persulfate, 0.2-0.3% of sodium dodecyl sulfate, 0.6-0.8% of alkylphenol polyoxyethylene, 0.05-0.10% of sodium bicarbonate, 2-3% of ammonia water and 60-70% of deionized water, wherein the sum of the mass of the components is 100%;
step 2, 5 parts of lauryl sodium sulfate, 5 parts of alkylphenol ethoxylates and 5 parts of deionized water in the step 1 are uniformly distributed;
step 3, adding 1 part of sodium dodecyl sulfate, 1 part of alkylphenol polyoxyethylene and sodium bicarbonate into 1 part of deionized water, and stirring until the sodium dodecyl sulfate, the alkylphenol polyoxyethylene and the sodium bicarbonate are completely dissolved to serve as a kettle bottom solution;
step 4, taking 1 part of deionized water, adding ammonium persulfate, and stirring until the ammonium persulfate is completely dissolved to obtain an initiator aqueous solution;
step 5, mixing the acrylic ester, the methyl methacrylate, the methacrylic acid, the cross-linking agent, the rest 4 parts of sodium dodecyl sulfate, 4 parts of alkylphenol ethoxylates and 3 parts of deionized water, and emulsifying at a high speed to obtain a white pre-emulsion;
step 6, sequentially adding and mixing the kettle bottom liquid prepared in the step 3, the aqueous solution of the initiator with the total mass of 20% prepared in the step 4 and the pre-emulsion with the total mass of 20% prepared in the step 5, stirring and heating until the temperature is 75-80 ℃, and reacting to prepare seed emulsion;
step 7, simultaneously dropwise adding the initiator aqueous solution accounting for 80% of the residual total mass and the pre-emulsion accounting for 80% of the residual total mass into the seed emulsion while stirring at the temperature of 75-80 ℃, heating to 85 ℃ after dropwise adding, and preserving heat; and (3) cooling to 40-45 ℃, adding the ammonia water weighed in the step (1), adjusting the pH value, stirring again, filtering and discharging to obtain the textile size.
5. The method for preparing the quick-drying textile size according to claim 4, wherein the stirring speed in the step 6 is 200-250 r/min; the reaction time is 30-40 min.
6. The preparation method of the quick-drying textile size as claimed in claim 4, wherein the dripping time in the step 7 is 2-2.5 h, and the heat preservation time is 1.5-2 h.
7. The method for preparing the quick-drying textile size according to claim 4, wherein the pH value in the step 7 is 6-7; the secondary stirring time is 30-40 min, and the secondary stirring speed is 200-250 r/min.
8. The method for preparing the quick-drying textile size according to claim 4, wherein the acrylate in the step 1 is one or more of methyl acrylate, ethyl acrylate and butyl acrylate.
9. The method for preparing the quick-drying textile size according to claim 4, wherein the cross-linking agent in the step 1 is one or more of Glycidyl Methacrylate (GMA), N-methylolacrylamide (N-MA) and Ethylene Glycol Dimethacrylate (EGDMA).
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