CN106381704A - Starch textile pulp replacing PVA (Polyvinyl Alcohol) - Google Patents
Starch textile pulp replacing PVA (Polyvinyl Alcohol) Download PDFInfo
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- CN106381704A CN106381704A CN201611011197.4A CN201611011197A CN106381704A CN 106381704 A CN106381704 A CN 106381704A CN 201611011197 A CN201611011197 A CN 201611011197A CN 106381704 A CN106381704 A CN 106381704A
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- sizing agent
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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
-
- 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
- D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
- D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
-
- 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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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention provides a starch textile pulp replacing PVA (Polyvinyl Alcohol). The pulp is prepared from the following raw materials in percentage by weight: 35 to 45 parts of compound modified starch, 2 to 5 parts of ylate emulsion, 1 to 3 parts of defoamer, and 100 parts of deionized water. The ylate emulsion is mainly prepared from polymerizing acrylic acid, vinyl acetate, butyl methacrylate and maleic acid. A plasma membrane obtained through mutual concurrent effects of all components of the textile pulp is large in elasticity, and large in elongation, slurry stability is high, the preparation method is simple, and the pulp is suitable for industrialized application.
Description
Technical field
The invention belongs to textile technology field, it 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 through loom movement generation friction repeatedly, stretching, winding and will impact, for reducing end breakage rate,
Improve weaving the yarn efficiency, starching must be carried out to warp thread before weaving.It is smooth, wear-resisting, pliable and tough that slurry makes sliver surface be coated with
And have the serous coat of some strength, make the coefficient of friction being wound around the trunk that sliver is close to by fiber, reducing sliver surface on sliver surface,
It is that fraction slurries penetrate into yarn interior simultaneously, increase the viscous tensile strength paid power, improve yarn between fiber, to adapt to weave
During hightension, middle beating, reduce broken end improve efficiency.
Spinning sizing agent mainly has three major types:Starch (inclusion 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 (as linen-cotton, viscose rayon)
Performance, therefore in three major types slurry, consumption is most.But also there are some defects in it in performance, as crisp and hard in serous coat, stretches
Degree is little, stability is poor.
Polyacrylic size is based on acrylic monomer, and the macromolecular main chain being synthesized by sudden reaction is complete
The homopolymers being made up of carbon atom or copolymer, have adhesion height, and 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, and acrylic size is being washed
In synthetic fibre long filament starching and weaving process, there is key effect.
Polyvinyl alcohol slurry has many advantages for starching, as good in chemical stability, 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, country starts to prohibit the use of PVA slurry in the world, and PVA slurry 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 multiple organic unsaturated monomer synthesize for textile industry through vitochemical Graft copolymerisation process and technology controlling and process
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:Maleic acid one alkyl ester or fumaric acid one alkyl ester 6-8;This slurry molecular structure:(its
In:St:Starch, R1:Carboxyl, carboxylate, R2:Methyl esters, ethyl ester, butyl ester, Octyl Nitrite, R3:Methyl, butyl).But, its performance
It need to improve further.
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 serous coat elasticity of described slurry is big, degree of stretching is big, and the stability of slurries is high, and preparation method is simple, is suitable for industrial applications.
For reaching this purpose, the present invention employs the following technical solutions:
The invention provides a kind of starch textile size of substitution for PVA, described slurry is by weight by the following raw material system
Standby obtain:
Composite modified starch 35-45 part, such as 36 parts, 38 parts, 39 parts, 40 parts, 41 parts, 42 parts or 43 parts etc.;
Polyacrylate dispersion 2-5 part, such as 3 parts, 4 parts or 4.5 parts etc.;
Defoamer 1-3 part, such as 1.5 parts, 2 parts, 2.5 parts or 2.8 parts etc.;
100 parts of deionized water;
Wherein, described polyacrylate dispersion is prepared by the following raw material by weight:
Acrylic acid 12-18 part, such as 13 parts, 15 parts, 16 parts, 17 parts or 17.5 parts etc.;
Vinylacetate 28-35 part, such as 29 parts, 30 parts, 31 parts, 32 parts, 33 parts, 34 parts or 34.5 parts etc.;
Maleic acid 2-6 part, such as 3 parts, 4 parts, 5 parts or 5.5 parts etc.;
Emulsifying agent 6-8 part, such as 6.5 parts, 7 parts or 7.5 parts etc.;
Initiator 0.1-0.3 part, such as 0.2 part etc.;
100 parts of deionized water.
As preferred technical scheme, described slurry is prepared by the following raw material by weight:
Wherein, described polyacrylate dispersion is prepared by the following raw material by weight:
As preferred technical scheme, described slurry is prepared by the following raw material by weight:
Wherein, described polyacrylate dispersion is prepared by the following raw material by weight:
Described polyacrylate dispersion is 9-10 with the mass ratio of composite modified starch:1, such as 9.2:1、9.3:1、9.5:1、
9.8:1 etc..
Described composite modified starch is prepared via a method which to obtain:Mass ratio is 1:(1-2) wheaten starch and wood
Sweet potato starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and controlling pH with NaOH is 9.0, anti-in 30-40 DEG C of oxidation
Answer 3-4 hour;After the completion of reaction, cooling material, to 25-30 DEG C, adds the oxidant of sodium metabisulfite solution reduction residual;Again
Acetic anhydride is added to carry out esterification in reaction mass, controlling pH with NaOH is 7, reacts 3-5 hour, reaction 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 115 DEG C -125 DEG C of temperature, the pressure of 5.0bar-8.0bar, the rotating speed of 4rpm-7rpm, and in 2-
It is dried flakiness in 5min;Then will be obtained after the particle of thin slice ultramicro grinding to 15 μm -25 μm.
Described 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 waiting.
The mass ratio of described polyacrylic acid, vinylacetate and butyl methacrylate is 1:2:0.6.
Described emulsifying agent is lauryl sodium sulfate and/or OP-10.
Described emulsifying agent is (1-2) for 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..
Described initiator is ammonium persulfate.
Described defoamer is dimethicone.
The preparation method of described spinning sizing agent comprises the steps:
(1) by the polyacrylic acid of formula ratio, vinylacetate, butyl methacrylate, maleic acid, emulsifying agent, initiator
And deionized water mixing, react under the conditions of 50-60 DEG C and obtain polyacrylate dispersion;
(2) polyacrylate dispersion of formula ratio, composite modified starch, defoamer and deionized water are mixed, obtain institute
State the starch textile size of substitution for PVA.
Compared with prior art, beneficial effects of the present invention are:
In the polyacrylic weaving slurries that the present invention provides, each group has synergy between dividing, the spinning sizing agent obtaining
Serous coat elasticity big, its fracture strength is up to 4.550N/mm2, up to 6.22%, the heat endurance of slurry is high for elongation at break,
And preparation method is simple, is suitable for industrial applications.
Specific embodiment
To further illustrate technical scheme below by specific embodiment.
Embodiment 1
A kind of starch textile size of substitution for PVA, described slurry is prepared by the following raw material by weight:
Wherein, described polyacrylate dispersion is prepared by the following raw material by weight:
Described emulsifying agent is lauryl sodium sulfate.
Described initiator is ammonium persulfate.
Described defoamer is dimethicone.
Described composite modified starch is prepared via a method which to obtain:Mass ratio is 1:1 wheaten starch and para arrowroot
Powder and 100 parts of water were deployed into slip, add liquor natrii hypochloritis, and controlling pH with NaOH is 9.0, in 30 DEG C of oxidation reactions 3 hours;
After the completion of reaction, cooling material, to 25 DEG C, adds the oxidant of sodium metabisulfite solution reduction residual;Add in reaction mass again
Enter acetic anhydride and carry out esterification, controlling pH with NaOH is 7, reacts 3 hours at 30 DEG C, after the completion of reaction, adjusts slurry with NaOH
Material pH value is standby to 8.0;Above-mentioned converted starch slip is added in double roller cylinder drier, in the pressure of 115 DEG C of temperature, 5.0bar
Power, the rotating speed lower moment gelatinization denaturation of 4rpm, and it is dried flakiness in 2min;Then by thin slice ultramicro grinding to 15 μ
It is obtained after m-25 μm of particle.
The preparation method of described spinning sizing agent comprises the steps:
(1) by the polyacrylic acid of formula ratio, vinylacetate, butyl methacrylate, maleic acid, emulsifying agent, initiator
And deionized water mixing, react under the conditions of 50 DEG C and obtain polyacrylate dispersion;
(2) polyacrylate dispersion, composite modified starch, defoamer and deionized water are mixed, obtain described substitution for PVA
Starch textile size.
Embodiment 2
A kind of starch textile size of substitution for PVA, described slurry is prepared by the following raw material by weight:
Wherein, described polyacrylate dispersion is prepared by the following raw material by weight:
Described emulsifying agent is OP-10.
Described initiator is ammonium persulfate.
Described defoamer is dimethicone.
Described composite modified starch is prepared via a method which to obtain:Mass ratio is 1:2 wheaten starch and para arrowroot
Powder and 100 parts of water were deployed into slip, add liquor natrii hypochloritis, and controlling pH with NaOH is 9.0, in 40 DEG C of oxidation reactions 4 hours;
After the completion of reaction, cooling material, to 30 DEG C, adds the oxidant of sodium metabisulfite solution reduction residual;Add in reaction mass again
Enter acetic anhydride and carry out esterification, controlling pH with NaOH is 7, reacts 5 hours at 35 DEG C, after the completion of reaction, adjusts slurry with NaOH
Material pH value is standby to 10.0;Above-mentioned converted starch slip is added in double roller cylinder drier, in 125 DEG C of temperature, 8.0bar
Pressure, the rotating speed lower moment gelatinization denaturation of 7rpm, and it is dried flakiness in 5min;Then by thin slice ultramicro grinding to 15
It is obtained after μm -25 μm of particle.
The preparation method of described spinning sizing agent comprises the steps:
(1) by the polyacrylic acid of formula ratio, vinylacetate, butyl methacrylate, maleic acid, emulsifying agent, initiator
And deionized water mixing, react under the conditions of 60 DEG C and obtain polyacrylate dispersion;
(2) polyacrylate dispersion, composite modified starch, defoamer and deionized water are mixed, obtain described substitution for PVA
Starch textile size.
Embodiment 3
A kind of starch textile size of substitution for PVA, described slurry is prepared by the following raw material by weight:
Wherein, described polyacrylate dispersion is prepared by the following raw material by weight:
Described emulsifying agent is 1 for volume ratio:1 lauryl sodium sulfate and OP-10.
Described initiator is ammonium persulfate.
Described defoamer is dimethicone.
Described composite modified starch is prepared via a method which to obtain:Mass ratio is 1:1.5 wheaten starch and cassava
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and controlling pH with NaOH is 9.0, in 32 DEG C of oxidation reactions 3.5
Hour;After the completion of reaction, cooling material, to 28 DEG C, adds the oxidant of sodium metabisulfite solution reduction residual;Again to reactant
Acetic anhydride is added to carry out esterification in material, controlling pH with NaOH is 7, reacts 4 hours at 33 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.0;By above-mentioned converted starch slip add double roller cylinder drier in, 120 DEG C of temperature,
The pressure of 6.0bar, the rotating speed lower moment gelatinization denaturation of 5rpm, and it is dried flakiness in 3min;Then by thin slice ultra micro
It is obtained after being crushed to 15 μm -25 μm of particle.
The preparation method of described spinning sizing agent comprises the steps:
(1) by the polyacrylic acid of formula ratio, vinylacetate, butyl methacrylate, maleic acid, emulsifying agent, initiator
And deionized water mixing, react under the conditions of 55 DEG C and obtain polyacrylate dispersion;
(2) polyacrylate dispersion of formula ratio, composite modified starch, defoamer and deionized water are mixed, obtain institute
State the starch textile size of substitution for PVA.
Embodiment 4
A kind of starch textile size of substitution for PVA, described slurry is prepared by the following raw material by weight:
Wherein, described polyacrylate dispersion is prepared by the following raw material by weight:
Described emulsifying agent is 2 for volume ratio:1 lauryl sodium sulfate and OP-10.
Described initiator is ammonium persulfate.
Described defoamer is dimethicone.
Described hydrophilic inorganic nano particle is the inorganic nanoparticles through hydroxyl modification for the surface, described inorganic nano
Grain is silica;The particle size of described hydrophilic inorganic nano particle is 4-50nm.
Described composite modified starch is prepared via a method which to obtain:Mass ratio is 1:1.5 wheaten starch and cassava
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and controlling pH with NaOH is 9.0, in 32 DEG C of oxidation reactions 3.5
Hour;After the completion of reaction, cooling material, to 28 DEG C, adds the oxidant of sodium metabisulfite solution reduction residual;Again to reactant
Acetic anhydride is added to carry out esterification in material, controlling pH with NaOH is 7, reacts 4 hours at 33 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.0;By above-mentioned converted starch slip add double roller cylinder drier in, 120 DEG C of temperature,
The pressure of 6.0bar, the rotating speed lower moment gelatinization denaturation of 5rpm, and it is dried flakiness in 3min;Then by thin slice ultra micro
It is obtained after being crushed to 15 μm -25 μm of particle.
The preparation method of described spinning sizing agent comprises the steps:
(1) by the polyacrylic acid of formula ratio, vinylacetate, butyl methacrylate, maleic acid, emulsifying agent, initiator
And deionized water mixing, react under the conditions of 55 DEG C and obtain polyacrylate dispersion;
(2) polyacrylate dispersion of formula ratio, composite modified starch, defoamer and deionized water are mixed, obtain institute
State the starch textile size of substitution for PVA.
Embodiment 5
A kind of starch textile size of substitution for PVA, described slurry is prepared by the following raw material by weight:
Wherein, described polyacrylate dispersion is prepared by the following raw material by weight:
Described emulsifying agent is 1.5 for volume ratio:1 lauryl sodium sulfate and OP-10.
Described initiator is ammonium persulfate.
Described defoamer is dimethicone.
Described composite modified starch is prepared via a method which to obtain:Mass ratio is 1:1.5 wheaten starch and cassava
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and controlling pH with NaOH is 9.0, in 32 DEG C of oxidation reactions 3.5
Hour;After the completion of reaction, cooling material, to 28 DEG C, adds the oxidant of sodium metabisulfite solution reduction residual;Again to reactant
Acetic anhydride is added to carry out esterification in material, controlling pH with NaOH is 7, reacts 4 hours at 33 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.0;By above-mentioned converted starch slip add double roller cylinder drier in, 120 DEG C of temperature,
The pressure of 6.0bar, the rotating speed lower moment gelatinization denaturation of 5rpm, and it is dried flakiness in 3min;Then by thin slice ultra micro
It is obtained after being crushed to 15 μm -25 μm of particle.
The preparation method of described spinning sizing agent comprises the steps:
(1) by the polyacrylic acid of formula ratio, vinylacetate, butyl methacrylate, maleic acid, emulsifying agent, initiator
And deionized water mixing, react under the conditions of 55 DEG C and obtain polyacrylate dispersion;
(2) polyacrylate dispersion of formula ratio, composite modified starch, defoamer and deionized water are mixed, obtain institute
State the starch textile size of substitution for PVA.
Comparative example 1
A kind of spinning sizing agent, described slurry is prepared by the following raw material by weight:
Wherein, described polyacrylate dispersion is prepared by the following raw material by weight:
Described emulsifying agent is 2 for volume ratio:1 lauryl sodium sulfate and OP-10.
Described initiator is ammonium persulfate.
Described defoamer is dimethicone.
Described composite modified starch is prepared via a method which to obtain:Mass ratio is 1:1.2 wheaten starch and cassava
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and controlling pH with NaOH is 9.0, in 34 DEG C of oxidation reactions 3.5
Hour;After the completion of reaction, cooling material, to 28 DEG C, adds the oxidant of sodium metabisulfite solution reduction residual;Again to reactant
Acetic anhydride is added to carry out esterification in material, controlling pH with NaOH is 7, reacts 4 hours at 32 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.5;By above-mentioned converted starch slip add double roller cylinder drier in, 122 DEG C of temperature,
The pressure of 6.0bar, the rotating speed lower moment gelatinization denaturation of 6.5rpm, and it is dried flakiness in 4min;Then thin slice is surpassed
Micro mist is obtained after being broken to 15 μm -25 μm of particle.
The preparation method of described spinning sizing agent is identical with the preparation method described in embodiment 8.
Comparative example 2
A kind of spinning sizing agent, described slurry is prepared by the following raw material by weight:
Wherein, described polyacrylate dispersion is prepared by the following raw material by weight:
Described emulsifying agent is 2 for volume ratio:1 lauryl sodium sulfate and OP-10.
Described initiator is ammonium persulfate.
Described defoamer is dimethicone.
Described composite modified starch is prepared via a method which to obtain:Mass ratio is 1:1.2 wheaten starch and cassava
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritis, and controlling pH with NaOH is 9.0, in 34 DEG C of oxidation reactions 3.5
Hour;After the completion of reaction, cooling material, to 28 DEG C, adds the oxidant of sodium metabisulfite solution reduction residual;Again to reactant
Acetic anhydride is added to carry out esterification in material, controlling pH with NaOH is 7, reacts 4 hours at 32 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.5;By above-mentioned converted starch slip add double roller cylinder drier in, 122 DEG C of temperature,
The pressure of 6.0bar, the rotating speed lower moment gelatinization denaturation of 6.5rpm, and it is dried flakiness in 4min;Then thin slice is surpassed
Micro mist is obtained after being broken to 15 μm -25 μm of particle.
The preparation method of described 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 1-5 and comparative example 1-2 obtain:
1st, the test of the fracture strength of serous coat and elongation at break
(1) making of serous coat
By area be 650mm × 400mm, thickness be that the polyfluortetraethylene plate of 5mm is put on special, tripod set screw
Tip on, dip on polyfluortetraethylene plate with a small amount of water, then mylar thick for 0.3mm be laid in polytetrafluoroethylene (PTFE)
On plate, the slurries of configuration 3% concentration, it is incubated 1h at 95 DEG C.It is then cooled to taken amount 400mL when 50 DEG C about, slowly it is poured on poly-
On tetrafluoroethene plate, and gently moved back and forth with glass bar, so that slurries is paved with polyfluortetraethylene plate.Spontaneously dry film forming
Afterwards, carefully serous coat is 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 220mm × 5mm bar-shaped sample, is placed on constant temperature, humidity room's inner equilibrium 24h, Ran Hou
Instron5566 type strength aircraft measurements ultimate strength, (sample holder is apart from 100mm, decrease speed 50m/ for elongation at break
Min), every kind of serous coat is tested 30 times, calculates its mean value, further according to serous coat THICKNESS CALCULATION fracture strength.Test result such as table 1 institute
Show.
2nd, slurry viscosity and heat stability testing
Spinning sizing agent is diluted to the solution that mass fraction is 4%, when test temperature is 25 DEG C, using the rotation of NDJ-79 type
Formula viscosity apparatus measures the viscosity of slurries.After 95 DEG C of mashing off 1h, measure the slurry viscosity of the different time when 95 DEG C 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 significantly improves.
In addition, finding through test, any component in embodiment 1-5 is removed, the performance of the slurry obtaining all is not so good as
The performance of the slurry that embodiment 1-5 obtains.
Applicant states, the present invention illustrates the method detailed of the present invention by above-described embodiment, but the present invention not office
It is limited to above-mentioned method detailed, that is, do not mean that the present invention has to rely on above-mentioned method detailed and could implement.Art
Technical staff is it will be clearly understood that any improvement in the present invention, the equivalence replacement to each raw material of product of the present invention and auxiliary element
Interpolation, selection of concrete mode etc., within the scope of all falling within protection scope of the present invention and disclosure.
Claims (10)
1. a kind of starch textile size of substitution for PVA is it is characterised in that described slurry is prepared into by the following raw material by weight
Arrive:
Wherein, described polyacrylate dispersion is prepared by the following raw material by weight:
2. spinning sizing agent according to claim 1 is it is characterised in that described slurry is prepared by the following raw material by weight
Obtain:
Wherein, described polyacrylate dispersion is prepared by the following raw material by weight:
3. spinning sizing agent according to claim 1 and 2 is it is characterised in that described slurry is by weight by the following raw material
Prepare:
Wherein, described polyacrylate dispersion is prepared by the following raw material by weight:
4. the spinning sizing agent according to one of claim 1-3 is it is characterised in that described composite modified starch and polyacrylic acid
The mass ratio of ester emulsion is 9-10:1.
5. the spinning sizing agent according to one of claim 1-4 is it is characterised in that described composite modified starch passes through such as lower section
Method prepares:Mass ratio is 1:The wheaten starch of 1-2 and tapioca and 100 parts of water are deployed into slip, add hypochlorous acid
Sodium solution, controlling pH with NaOH is 9.0, 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 again in reaction mass, use
It is 7 that NaOH controls pH, reacts 3-5 hour at 30-35 DEG C, 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, in the pressure of 115 DEG C -125 DEG C of temperature, 5.0bar-8.0bar
Power, the rotating speed lower moment gelatinization denaturation of 4rpm-7rpm, and it is dried flakiness in 2-5min;Then by thin slice Ultramicro-powder
It is obtained after being broken to 15 μm -25 μm of particle.
6. the spinning sizing agent according to one of claim 1-5 it is characterised in that described polyacrylic acid, vinylacetate with
The mass ratio of butyl methacrylate is 1:2:0.6.
7. the spinning sizing agent according to one of claim 1-6 is it is characterised in that described emulsifying agent is lauryl sodium sulfate
And/or OP-10.
8. the spinning sizing agent according to one of claim 1-7 is it is characterised in that described emulsifying agent is (1-2) for volume ratio:
1 lauryl sodium sulfate and OP-10.
9. the spinning sizing agent according to one of claim 1-8 is it is characterised in that described initiator is ammonium persulfate.
10. the spinning sizing agent according to one of claim 1-9 is it is characterised in that described defoamer is dimethicone.
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CN201611011197.4A CN106381704A (en) | 2016-11-17 | 2016-11-17 | Starch textile pulp replacing PVA (Polyvinyl Alcohol) |
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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 |
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