CN106637966A - Starch textile sizing agent for replacing PVA (polyvinyl alcohol) - Google Patents
Starch textile sizing agent for replacing PVA (polyvinyl alcohol) Download PDFInfo
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- CN106637966A CN106637966A CN201611011168.8A CN201611011168A CN106637966A CN 106637966 A CN106637966 A CN 106637966A CN 201611011168 A CN201611011168 A CN 201611011168A CN 106637966 A CN106637966 A CN 106637966A
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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
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
- D06M15/11—Starch or derivatives thereof
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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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- 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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions
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- Textile Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention provides a starch textile sizing agent for replacing PVA (polyvinyl alcohol). The starch textile sizing agent is prepared from, by weight, 20-32 parts of composite modified starch, 8-15 parts of polyacrylate emulsion, 1-3 parts of defoaming agents and 100 parts of deionized water. The polyacrylate emulsion mainly comprises acrylic acid, vinyl acetate, butyl methacrylate and maleic acid which are polymerized. The starch textile sizing agent has the advantages that serous membranes obtained under the synergistic effects of various components in the starch textile sizing agent are high in elasticity and elongation, serous fluid is high in stability, methods for preparing the starch textile sizing agent are simple, and the starch textile sizing agent is suitable for industrial application.
Description
Technical field
The invention belongs to textile technology field, is related to a kind of spinning sizing agent, more particularly to a kind of starch textile of substitution for PVA
Slurry.
Background technology
In weaving, warp thread want Jing loom movements to produce friction repeatedly, stretching, winding and impact, is reduction end breakage rate,
Weaving the yarn efficiency is improved, starching must be carried out to warp thread before weaving.It is smooth, wear-resisting, flexible that slurry is coated with sliver surface
And have the serous coat of some strength, the winding fiber for making sliver surface is close to the trunk of sliver, reduces the coefficient of friction on sliver surface,
It is simultaneously that fraction slurries penetrate into yarn interior, increases the viscous tensile strength paid power, improve yarn between fiber, to adapt to weaving
During hightension, middle beating, reduce broken end improve efficiency.
Spinning sizing agent mainly has three major types：Starch (including converted starch) class, polyvinyl alcohol (PVA) class, acrylic compounds (bag
Include Barbiturates, amide-type, esters).
Starch is with a long history for warp sizing, has good adhesion to hydrophilic fibre (such as linen-cotton, viscose rayon)
Performance, therefore consumption is most in three major types slurry.But it also has some defects in performance, such as serous coat is crisp and hard, stretches
Spend little, stability poor.
Polyacrylic size is that, based on acrylic monomer, the macromolecular main chain synthesized by sudden reaction is complete
The homopolymers being made up of carbon atom or copolymer, high with adhesion, desizing performance is good, and the viscosity heat that can improve starch size is steady
Qualitative the features such as.Now, increasing enterprise begins to use the more preferable acrylic size of performance, acrylic size washing
There is key effect in the starching of synthetic fibre long filament and weaving process.
Polyvinyl alcohol slurry has many advantages for starching, such as chemical stability is good, heat endurance is good, intersolubility is good,
Viscosity stabilization and hygroscopicity are low, but its critical defect is the pollution to environment, and desized wastewater causes larger environmental pollution,
In mankind's environmental consciousness more and more strong today, in the world country starts to prohibit the use of PVA slurries, and PVA slurries can be slow
Slow replacement.
CN1817924A discloses a kind of degradable starch graft copolymerization spinning sizing agent of complete replacing for polyvinyl alcohol：Will
Starch and the vitochemical Graft copolymerisation processes of various organic unsaturated monomer Jing and technology controlling and process and synthesize for textile industry
The spinning sizing agent new product of warp sizing, slurry products synthetic ratio (weight)：Plant amylum 25-32:Acrylic acid or butenoic acid 40-
45:Maleic anhydride or maleic acid or fumaric acid 0.2-1:Alkyl acrylate or alkyl methacrylate or maleic acid alkyl ester 22-
28:The alkyl ester of maleic acid one or alkyl ester 6-8 of fumaric acid one；This slurry molecular structure：
(wherein：St：Starch, R1：Carboxyl, carboxylate, R2：Methyl esters, ethyl ester, butyl ester, Octyl Nitrite, R3：Methyl, butyl).But, its
Performance need further raising.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of starch textile size of substitution for PVA,
The elastic big, degree of stretching of the serous coat of the slurry is big, and the stability of slurries is high, and preparation method is simple, is suitable for industrial applications.
It is that, up to this purpose, the present invention is employed the following technical solutions：
The invention provides a kind of starch textile size of substitution for PVA, the slurry is by weight by the following raw material system
It is standby to obtain：
Composite modified starch 20-32 parts, such as 22 parts, 23 parts, 24 parts, 26 parts, 28 parts, 30 parts or 31 parts；
Polyacrylate dispersion 8-15 parts, such as 9 parts, 10 parts, 11 parts, 12 parts, 13 parts or 14 parts；
Defoamer 1-3 parts, such as 1.5 parts, 2 parts, 2.5 parts or 2.8 parts；
100 parts of deionized water；
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
Acrylic acid 20-28 parts, such as 22 parts, 23 parts, 24 parts, 25 parts, 26 parts or 27 parts；
Butyl methacrylate 13-20 parts, such as 14 parts, 15 parts, 16 parts, 18 parts or 19 parts；
Maleic acid 2-6 parts, such as 3 parts, 4 parts, 5 parts or 5.5 parts；
Emulsifying agent 6-8 parts, such as 6.5 parts, 7 parts or 7.5 parts；
Initiator 0.1-0.3 parts, such as 0.2 part；
100 parts of deionized water.
Used as preferred technical scheme, the slurry is prepared by weight by the following raw material：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
Used as preferred technical scheme, the slurry is prepared by weight by the following raw material：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
The polyacrylate dispersion is (3-3.5) with the mass ratio of composite modified starch:1, such as 3.1:1、3.2:1、
3.3:1、3.4:1 etc..
The composite modified starch is prepared via a method which to obtain：It is 1 by mass ratio:(1-2) wheaten starch and wood
Sweet potato starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and it is 9.0 to control pH with NaOH, anti-in 30-40 DEG C of oxidation
Answer 3-4 hours；After the completion of reaction, cooling material adds the oxidant of sodium metabisulfite solution reduction residual to 25-30 DEG C；Again
Acetic anhydride is added to carry out esterification in reaction mass, it is 7 to control pH with NaOH, and 3-5 hours, reaction are reacted at 30-35 DEG C
After the completion of, adjust slurry pH value with NaOH standby to 8.0-10.0；Above-mentioned converted starch slip is added in double roller cylinder drier,
Moment gelatinization denaturation under the pressure of temperature, 5.0bar-8.0bar, the rotating speed of 4rpm-7rpm at 115 DEG C -125 DEG C, and in 2-
Flakiness is dried in 5min；Then will be obtained after the particle of thin slice ultramicro grinding to 15 μm -25 μm.
The wheaten starch can be 1 with the mass ratio of tapioca:1.2、1:1.3、1:1.4、1:1.6 or 1:1.8 wait.
The emulsifying agent is lauryl sodium sulfate and/or OP-10.
It is (1-2) that the emulsifying agent is volume ratio:1 lauryl sodium sulfate and OP-10, such as volume ratio are 1.2:1、
1.3:1、1.5:1、1.7:1 or 1.9:1 etc..
The initiator is ammonium persulfate.
The defoamer is dimethicone.
The preparation method of the spinning sizing agent comprises the steps：
(1) polyacrylic acid of formula ratio, butyl methacrylate, maleic acid, emulsifying agent, initiator and deionized water are mixed
Close, the reaction under the conditions of 50-60 DEG C obtains polyacrylate dispersion；
(2) polyacrylate dispersion of formula ratio, composite modified starch, defoamer and deionized water are mixed, obtains institute
State the starch textile size of substitution for PVA.
Compared with prior art, beneficial effects of the present invention are：
There is synergy, the spinning sizing agent for obtaining between each component in the polyacrylic weaving slurries that the present invention is provided
Serous coat elasticity it is big, its fracture strength is up to 4.550N/mm2, elongation at break is up to 6.22%, and the heat endurance of slurry is high,
And preparation method is simple, is suitable for industrial applications.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of starch textile size of substitution for PVA, the slurry is prepared by weight by the following raw material：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
The emulsifying agent is lauryl sodium sulfate.
The initiator is ammonium persulfate.
The defoamer is dimethicone.
The composite modified starch is prepared via a method which to obtain：It is 1 by mass ratio:1 wheaten starch and para arrowroot
Powder and 100 parts of water were deployed into slip, add liquor natrii hypochloritis, and it is 9.0 control pH with NaOH, in 30 DEG C of oxidation reactions 3 hours；
After the completion of reaction, cooling material adds the oxidant of sodium metabisulfite solution reduction residual to 25 DEG C；Add in reaction mass again
Entering acetic anhydride carries out esterification, and it is 7 to control pH with NaOH, is reacted 3 hours at 30 DEG C, after the completion of reaction, is adjusted with NaOH and is starched
Material pH value is standby to 8.0；Above-mentioned converted starch slip is added in double roller cylinder drier, the pressure of temperature, 5.0bar at 115 DEG C
The rotating speed lower moment gelatinization denaturation of power, 4rpm, and flakiness is dried in 2min；Then by thin slice ultramicro grinding to 15 μ
It is obtained after m-25 μm of particle.
The preparation method of the spinning sizing agent comprises the steps：
(1) polyacrylic acid of formula ratio, butyl methacrylate, maleic acid, emulsifying agent, initiator and deionized water are mixed
Close, the reaction under the conditions of 50 DEG C obtains polyacrylate dispersion；
(2) polyacrylate dispersion, composite modified starch, defoamer and deionized water are mixed, obtains the substitution for PVA
Starch textile size.
Embodiment 2
A kind of starch textile size of substitution for PVA, the slurry is prepared by weight by the following raw material：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
The emulsifying agent is OP-10.
The initiator is ammonium persulfate.
The defoamer is dimethicone.
The composite modified starch is prepared via a method which to obtain：It is 1 by mass ratio:2 wheaten starch and para arrowroot
Powder and 100 parts of water were deployed into slip, add liquor natrii hypochloritis, and it is 9.0 control pH with NaOH, in 40 DEG C of oxidation reactions 4 hours；
After the completion of reaction, cooling material adds the oxidant of sodium metabisulfite solution reduction residual to 30 DEG C；Add in reaction mass again
Entering acetic anhydride carries out esterification, and it is 7 to control pH with NaOH, is reacted 5 hours at 35 DEG C, after the completion of reaction, is adjusted with NaOH and is starched
Material pH value is standby to 10.0；Above-mentioned converted starch slip is added in double roller cylinder drier, the temperature, 8.0bar at 125 DEG C
The rotating speed lower moment gelatinization denaturation of pressure, 7rpm, and flakiness is dried in 5min；Then by thin slice ultramicro grinding to 15
It is obtained after μm -25 μm of particle.
The preparation method of the spinning sizing agent comprises the steps：
(1) polyacrylic acid of formula ratio, butyl methacrylate, maleic acid, emulsifying agent, initiator and deionized water are mixed
Close, the reaction under the conditions of 60 DEG C obtains polyacrylate dispersion；
(2) polyacrylate dispersion, composite modified starch, defoamer and deionized water are mixed, obtains the substitution for PVA
Starch textile size.
Embodiment 3
A kind of starch textile size of substitution for PVA, the slurry is prepared by weight by the following raw material：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
It is 1 that the emulsifying agent is volume ratio:1 lauryl sodium sulfate and OP-10.
The initiator is ammonium persulfate.
The defoamer is dimethicone.
The composite modified starch is prepared via a method which to obtain：It is 1 by mass ratio:1.5 wheaten starch and cassava
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and it is 9.0 to control pH with NaOH, in 32 DEG C of oxidation reactions 3.5
Hour；After the completion of reaction, cooling material adds the oxidant of sodium metabisulfite solution reduction residual to 28 DEG C；Again to reactant
Acetic anhydride is added to carry out esterification in material, it is 7 to control pH with NaOH, is reacted 4 hours at 33 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.0；Above-mentioned converted starch slip is added in double roller cylinder drier, temperature at 120 DEG C,
The pressure of 6.0bar, the rotating speed lower moment gelatinization denaturation of 5rpm, and flakiness is dried in 3min；Then by thin slice ultra micro
It is crushed to after 15 μm -25 μm of particle and is obtained.
The preparation method of the spinning sizing agent comprises the steps：
(1) polyacrylic acid of formula ratio, butyl methacrylate, maleic acid, emulsifying agent, initiator and deionized water are mixed
Close, the reaction under the conditions of 55 DEG C obtains polyacrylate dispersion；
(2) polyacrylate dispersion of formula ratio, composite modified starch, defoamer and deionized water are mixed, obtains institute
State the starch textile size of substitution for PVA.
Embodiment 4
A kind of starch textile size of substitution for PVA, the slurry is prepared by weight by the following raw material：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
It is 2 that the emulsifying agent is volume ratio:1 lauryl sodium sulfate and OP-10.
The initiator is ammonium persulfate.
The defoamer is dimethicone.
The hydrophilic inorganic nano particle be surface through hydroxyl modification inorganic nanoparticles, the inorganic nano
Grain is silica；The particle size of the hydrophilic inorganic nano particle is 4-50nm.
The composite modified starch is prepared via a method which to obtain：It is 1 by mass ratio:1.5 wheaten starch and cassava
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and it is 9.0 to control pH with NaOH, in 32 DEG C of oxidation reactions 3.5
Hour；After the completion of reaction, cooling material adds the oxidant of sodium metabisulfite solution reduction residual to 28 DEG C；Again to reactant
Acetic anhydride is added to carry out esterification in material, it is 7 to control pH with NaOH, is reacted 4 hours at 33 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.0；Above-mentioned converted starch slip is added in double roller cylinder drier, temperature at 120 DEG C,
The pressure of 6.0bar, the rotating speed lower moment gelatinization denaturation of 5rpm, and flakiness is dried in 3min；Then by thin slice ultra micro
It is crushed to after 15 μm -25 μm of particle and is obtained.
The preparation method of the spinning sizing agent comprises the steps：
(1) polyacrylic acid of formula ratio, butyl methacrylate, maleic acid, emulsifying agent, initiator and deionized water are mixed
Close, the reaction under the conditions of 55 DEG C obtains polyacrylate dispersion；
(2) polyacrylate dispersion of formula ratio, composite modified starch, defoamer and deionized water are mixed, obtains institute
State the starch textile size of substitution for PVA.
Embodiment 5
A kind of starch textile size of substitution for PVA, the slurry is prepared by weight by the following raw material：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
It is 1.5 that the emulsifying agent is volume ratio:1 lauryl sodium sulfate and OP-10.
The initiator is ammonium persulfate.
The defoamer is dimethicone.
The composite modified starch is prepared via a method which to obtain：It is 1 by mass ratio:1.5 wheaten starch and cassava
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and it is 9.0 to control pH with NaOH, in 32 DEG C of oxidation reactions 3.5
Hour；After the completion of reaction, cooling material adds the oxidant of sodium metabisulfite solution reduction residual to 28 DEG C；Again to reactant
Acetic anhydride is added to carry out esterification in material, it is 7 to control pH with NaOH, is reacted 4 hours at 33 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.0；Above-mentioned converted starch slip is added in double roller cylinder drier, temperature at 120 DEG C,
The pressure of 6.0bar, the rotating speed lower moment gelatinization denaturation of 5rpm, and flakiness is dried in 3min；Then by thin slice ultra micro
It is crushed to after 15 μm -25 μm of particle and is obtained.
The preparation method of the spinning sizing agent comprises the steps：
(1) polyacrylic acid of formula ratio, butyl methacrylate, maleic acid, emulsifying agent, initiator and deionized water are mixed
Close, the reaction under the conditions of 55 DEG C obtains polyacrylate dispersion；
(2) polyacrylate dispersion of formula ratio, composite modified starch, defoamer and deionized water are mixed, obtains institute
State the starch textile size of substitution for PVA.
Embodiment 6
A kind of starch textile size of substitution for PVA, the slurry is prepared by weight by the following raw material：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
The composite modified starch is 3 with the mass ratio of polyacrylate dispersion:1.
It is 1.2 that the emulsifying agent is volume ratio:1 lauryl sodium sulfate and OP-10.
The initiator is ammonium persulfate.
The defoamer is dimethicone.
The composite modified starch is prepared via a method which to obtain：It is 1 by mass ratio:1.2 wheaten starch and cassava
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and it is 9.0 to control pH with NaOH, in 32 DEG C of oxidation reactions 3.5
Hour；After the completion of reaction, cooling material adds the oxidant of sodium metabisulfite solution reduction residual to 28 DEG C；Again to reactant
Acetic anhydride is added to carry out esterification in material, it is 7 to control pH with NaOH, is reacted 4 hours at 33 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.0；Above-mentioned converted starch slip is added in double roller cylinder drier, temperature at 118 DEG C,
The pressure of 6.0bar, the rotating speed lower moment gelatinization denaturation of 5rpm, and flakiness is dried in 3min；Then by thin slice ultra micro
It is crushed to after 15 μm -25 μm of particle and is obtained.
The preparation method of the spinning sizing agent comprises the steps：
(1) polyacrylic acid of formula ratio, butyl methacrylate, maleic acid, emulsifying agent, initiator and deionized water are mixed
Close, the reaction under the conditions of 55 DEG C obtains polyacrylate dispersion；
(2) polyacrylate dispersion of formula ratio, composite modified starch, defoamer and deionized water are mixed, obtains institute
State the starch textile size of substitution for PVA.
Embodiment 7
A kind of starch textile size of substitution for PVA, the slurry is prepared by weight by the following raw material：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
The polyacrylate dispersion is 3.5 with the mass ratio of composite modified starch:1.
It is 2 that the emulsifying agent is volume ratio:1 lauryl sodium sulfate and OP-10.
The initiator is ammonium persulfate.
The defoamer is dimethicone.
The hydrophilic inorganic nano particle be surface through hydroxyl modification inorganic nanoparticles, the inorganic nano
Grain is silica；The particle size of the hydrophilic inorganic nano particle is 20-30nm.
The composite modified starch is prepared via a method which to obtain：It is 1 by mass ratio:1.4 wheaten starch and cassava
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and it is 9.0 to control pH with NaOH, in 34 DEG C of oxidation reactions 3.5
Hour；After the completion of reaction, cooling material adds the oxidant of sodium metabisulfite solution reduction residual to 28 DEG C；Again to reactant
Acetic anhydride is added to carry out esterification in material, it is 7 to control pH with NaOH, is reacted 4 hours at 33 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.0；Above-mentioned converted starch slip is added in double roller cylinder drier, temperature at 120 DEG C,
The pressure of 6.0bar, the rotating speed lower moment gelatinization denaturation of 5rpm, and flakiness is dried in 3min；Then by thin slice ultra micro
It is crushed to after 15 μm -25 μm of particle and is obtained.
The preparation method of the spinning sizing agent comprises the steps：
(1) polyacrylic acid of formula ratio, butyl methacrylate, maleic acid, emulsifying agent, initiator and deionized water are mixed
Close, the reaction under the conditions of 55 DEG C obtains polyacrylate dispersion；
(2) polyacrylate dispersion of formula ratio, composite modified starch, defoamer and deionized water are mixed, obtains institute
State the starch textile size of substitution for PVA.
Embodiment 8
A kind of starch textile size of substitution for PVA, the slurry is prepared by weight by the following raw material：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
The polyacrylate dispersion is 3.3 with the mass ratio of composite modified starch:1.
It is 2 that the emulsifying agent is volume ratio:1 lauryl sodium sulfate and OP-10.
The initiator is ammonium persulfate.
The defoamer is dimethicone.
The composite modified starch is prepared via a method which to obtain：It is 1 by mass ratio:1.2 wheaten starch and cassava
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and it is 9.0 to control pH with NaOH, in 34 DEG C of oxidation reactions 3.5
Hour；After the completion of reaction, cooling material adds the oxidant of sodium metabisulfite solution reduction residual to 28 DEG C；Again to reactant
Acetic anhydride is added to carry out esterification in material, it is 7 to control pH with NaOH, is reacted 4 hours at 32 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.5；Above-mentioned converted starch slip is added in double roller cylinder drier, temperature at 122 DEG C,
The pressure of 6.0bar, the rotating speed lower moment gelatinization denaturation of 6.5rpm, and flakiness is dried in 4min；Then thin slice is surpassed
Micro mist is broken to after 15 μm -25 μm of particle and is obtained.
The preparation method of the spinning sizing agent comprises the steps：
(1) polyacrylic acid of formula ratio, butyl methacrylate, maleic acid, emulsifying agent, initiator and deionized water are mixed
Close, the reaction under the conditions of 56 DEG C obtains polyacrylate dispersion；
(2) polyacrylate dispersion of formula ratio, composite modified starch, defoamer and deionized water are mixed, obtains institute
State the starch textile size of substitution for PVA.
Comparative example 1
A kind of spinning sizing agent, the slurry is prepared by weight by the following raw material：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
It is 2 that the emulsifying agent is volume ratio:1 lauryl sodium sulfate and OP-10.
The initiator is ammonium persulfate.
The defoamer is dimethicone.
The composite modified starch is prepared via a method which to obtain：It is 1 by mass ratio:1.2 wheaten starch and cassava
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and it is 9.0 to control pH with NaOH, in 34 DEG C of oxidation reactions 3.5
Hour；After the completion of reaction, cooling material adds the oxidant of sodium metabisulfite solution reduction residual to 28 DEG C；Again to reactant
Acetic anhydride is added to carry out esterification in material, it is 7 to control pH with NaOH, is reacted 4 hours at 32 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.5；Above-mentioned converted starch slip is added in double roller cylinder drier, temperature at 122 DEG C,
The pressure of 6.0bar, the rotating speed lower moment gelatinization denaturation of 6.5rpm, and flakiness is dried in 4min；Then thin slice is surpassed
Micro mist is broken to after 15 μm -25 μm of particle and is obtained.
The preparation method of the spinning sizing agent is identical with the preparation method described in embodiment 8.
Comparative example 2
A kind of spinning sizing agent, the slurry is prepared by weight by the following raw material：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
It is 2 that the emulsifying agent is volume ratio:1 lauryl sodium sulfate and OP-10.
The initiator is ammonium persulfate.
The defoamer is dimethicone.
The composite modified starch is prepared via a method which to obtain：It is 1 by mass ratio:1.2 wheaten starch and cassava
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and it is 9.0 to control pH with NaOH, in 34 DEG C of oxidation reactions 3.5
Hour；After the completion of reaction, cooling material adds the oxidant of sodium metabisulfite solution reduction residual to 28 DEG C；Again to reactant
Acetic anhydride is added to carry out esterification in material, it is 7 to control pH with NaOH, is reacted 4 hours at 32 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.5；Above-mentioned converted starch slip is added in double roller cylinder drier, temperature at 122 DEG C,
The pressure of 6.0bar, the rotating speed lower moment gelatinization denaturation of 6.5rpm, and flakiness is dried in 4min；Then thin slice is surpassed
Micro mist is broken to after 15 μm -25 μm of particle and is obtained.
The preparation method of the spinning sizing agent is identical with the preparation method described in embodiment 8.
Following performance test is carried out to the spinning sizing agent that embodiment 1-8 and comparative example 1-2 are obtained：
1st, the test of the fracture strength of serous coat and elongation at break
(1) making of serous coat
The polyfluortetraethylene plate that area is 650mm × 400mm, thickness is 5mm is put on into special, tripod set screw
Tip on, dipped on polyfluortetraethylene plate with a small amount of water, then the thick mylars of 0.3mm are laid in polytetrafluoroethylene (PTFE)
On plate, the slurries of 3% concentration are configured, at 95 DEG C 1h is incubated.It is then cooled to taken amount 400mL when 50 DEG C or so, is slowly poured on poly-
On tetrafluoroethene plate, and gently moved back and forth with glass bar, slurries is paved with polyfluortetraethylene plate.Spontaneously dry film forming
Afterwards, carefully serous coat peeled from polyfluortetraethylene plate, that is, standby serous coat is obtained.
(2) fracture strength of serous coat, elongation at break
Serous coat is cut into into 220mm × 5mm bar-shaped samples, constant temperature, humidity room's inner equilibrium 24h, Ran Hou is placed on
Instron5566 type strength aircraft measurements ultimate strengths, (sample holder is apart from 100mm, decrease speed 50m/ for elongation at break
Min), every kind of serous coat is tested 30 times, its mean value is calculated, further according to serous coat THICKNESS CALCULATION fracture strength.The test result such as institute of table 1
Show.
2nd, slurry viscosity and heat stability testing
Spinning sizing agent is diluted to into the solution that mass fraction is 4%, when test temperature is 25 DEG C, is rotated using NDJ-79 types
Formula viscosity apparatus determines the viscosity of slurries.After 95 DEG C of mashing off 1h, the slurry viscosity of the different time at 95 DEG C is determined respectively, calculate
Thermoviscosity stability.Test result is as shown in table 2.
Table 1
Table 2
Knowable to test result：The viscosity of slurries is low, good fluidity；Serous coat is flexible, good-extensibility, is conducive to improving yarn
The anti-wear performance of line；The better heat stability of slurries；The water solubility rate of serous coat is very fast, easy desizing, after starching, the enhancing of sizing
Rate is significantly improved.
In addition, finding through test, any component in embodiment 1-8 is removed, the performance of the slurry for obtaining is not so good as
The performance of the slurry that embodiment 1-8 is obtained.
Applicant states that the present invention illustrates the method detailed of the present invention, but the present invention not office by above-described embodiment
It is limited to above-mentioned method detailed, that is, does not mean that the present invention has to rely on above-mentioned method detailed and could implement.Art
Technical staff it will be clearly understood that any improvement in the present invention, the equivalence replacement and auxiliary element to each raw material of product of the present invention
Addition, selection of concrete mode etc., within the scope of all falling within protection scope of the present invention and disclosure.
Claims (9)
1. a kind of starch textile size of substitution for PVA, it is characterised in that the slurry is prepared into by weight by the following raw material
Arrive：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
2. spinning sizing agent according to claim 1, it is characterised in that the slurry is prepared by weight by the following raw material
Obtain：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
3. spinning sizing agent according to claim 1 and 2, it is characterised in that the slurry is by weight by the following raw material
Prepare：
Wherein, the polyacrylate dispersion is prepared by weight by the following raw material：
4. the spinning sizing agent according to one of claim 1-3, it is characterised in that the composite modified starch and polyacrylic acid
The mass ratio of ester emulsion is (3-3.5):1.
5. the spinning sizing agent according to one of claim 1-4, it is characterised in that the composite modified starch is by such as lower section
Method is prepared：It is 1 by mass ratio:The wheaten starch and tapioca of 1-2 and 100 parts of water are deployed into slip, add hypochlorous acid
Sodium solution, it is 9.0 to control pH with NaOH, in 30-40 DEG C of oxidation reaction 3-4 hour；After the completion of reaction, cooling material to 25-30
DEG C, add the oxidant of sodium metabisulfite solution reduction residual；Add acetic anhydride to carry out esterification in reaction mass again, use
It is 7 that NaOH controls pH, and at 30-35 DEG C 3-5 hours are reacted, and after the completion of reaction, adjusts slurry pH value with NaOH standby to 8.0-10.0
With；Above-mentioned converted starch slip is added in double roller cylinder drier, the pressure of temperature, 5.0bar-8.0bar at 115 DEG C -125 DEG C
The rotating speed lower moment gelatinization denaturation of power, 4rpm-7rpm, and flakiness is dried in 2-5min；Then by thin slice Ultramicro-powder
It is broken to after 15 μm -25 μm of particle and is obtained.
6. the spinning sizing agent according to one of claim 1-5, it is characterised in that the emulsifying agent is lauryl sodium sulfate
And/or OP-10.
7. the spinning sizing agent according to one of claim 1-6, it is characterised in that it is (1-2) that the emulsifying agent is volume ratio:
1 lauryl sodium sulfate and OP-10.
8. the spinning sizing agent according to one of claim 1-7, it is characterised in that the initiator is ammonium persulfate.
9. the spinning sizing agent according to one of claim 1-8, it is characterised in that the defoamer is dimethicone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011168.8A CN106637966A (en) | 2016-11-17 | 2016-11-17 | Starch textile sizing agent for replacing PVA (polyvinyl alcohol) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011168.8A CN106637966A (en) | 2016-11-17 | 2016-11-17 | Starch textile sizing agent for replacing PVA (polyvinyl alcohol) |
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| CN106637966A true CN106637966A (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611011168.8A Pending CN106637966A (en) | 2016-11-17 | 2016-11-17 | Starch textile sizing agent for replacing PVA (polyvinyl alcohol) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107964793A (en) * | 2017-12-20 | 2018-04-27 | 苏州润弘贸易有限公司 | Spinning sizing agent |
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| CN101628945A (en) * | 2009-07-15 | 2010-01-20 | 聚祥(厦门)淀粉有限公司 | Complex modified starch |
| CN103882708A (en) * | 2014-04-14 | 2014-06-25 | 苏州润弘贸易有限公司 | Low-pollution textile sizing agent |
| CN103882707A (en) * | 2014-04-14 | 2014-06-25 | 苏州润弘贸易有限公司 | Environment-friendly type textile sizing agent |
| CN103898752A (en) * | 2014-04-14 | 2014-07-02 | 苏州润弘贸易有限公司 | Textile size applicable to high-count cotton fabrics |
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| CN103882708A (en) * | 2014-04-14 | 2014-06-25 | 苏州润弘贸易有限公司 | Low-pollution textile sizing agent |
| CN103882707A (en) * | 2014-04-14 | 2014-06-25 | 苏州润弘贸易有限公司 | Environment-friendly type textile sizing agent |
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| CN107964793A (en) * | 2017-12-20 | 2018-04-27 | 苏州润弘贸易有限公司 | Spinning sizing agent |
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