CN106521952A - Starch textile size - Google Patents
Starch textile size Download PDFInfo
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- CN106521952A CN106521952A CN201611015508.4A CN201611015508A CN106521952A CN 106521952 A CN106521952 A CN 106521952A CN 201611015508 A CN201611015508 A CN 201611015508A CN 106521952 A CN106521952 A CN 106521952A
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/02—Esters
- C08B31/04—Esters of organic acids, e.g. alkenyl-succinated starch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/18—Oxidised starch
-
- 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
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts 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
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention provides starch textile size. The size is prepared from the following raw materials in parts by weight: 20-32 parts of composite modified starch, 8-15 parts of polyacrylate emulsion, 1-3 parts of antifoamer and 100 parts of deionized water, wherein the polyacrylate emulsion is mainly polymerized from acrylic acid, vinyl acetate, butyl methacrylate and maleic acid. According to the textile size, all the ingredients are in mutual synergism to action, so that the obtained size film is high in elasticity and high in stretch, and the size is high in stability; the preparation method is simple and is applicable to industrialized 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 size.
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, make the winding fiber on sliver surface be close to the trunk of sliver, reduce the coefficient of friction on sliver surface,
It is that fraction slurries penetrate into yarn interior simultaneously, 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 modified starch) class, polyvinyl alcohol (PVA) class, acrylic compounds (bag
Include Barbiturates, amide-type, esters).
Starch is with a long history for warp sizing, to hydrophilic fibre (such as linen-cotton, viscose rayon) with good adhesion
Performance, therefore consumption is most in three major types slurry.But which 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 homopolymer 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 in the starching of synthetic fibre long filament and weaving process pivotal role.
Polyvinyl alcohol slurry has many advantages for starching, such as chemical stability is good, heat stability 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 slurries in the world, 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：To form sediment
Powder and the vitochemical Graft copolymerisation processes of various organic unsaturated monomer Jing and technology controlling and process and synthesize for textile industry warp thread
The spinning sizing agent new product of starching, 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:
One alkyl ester 6-8 of one alkyl ester of maleic acid or fumaric acid；This slurry molecular structure：
(wherein：St：Starch, R1：Carboxyl, carboxylate, R2：Methyl ester, ethyl ester, butyl ester, Octyl Nitrite, R3：Methyl, butyl).But, its
Performance need further to improve.
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, the slurry
Serous coat elasticity is big, degree of stretching is big, the stability of serosity 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, the slurry is prepared by the following raw material by weight：
Composite modified starch 20-32 parts, such as 22 parts, 23 parts, 24 parts, 26 parts, 28 parts, 30 parts or 31 parts etc.；
Polyacrylate dispersion 8-15 parts, such as 9 parts, 10 parts, 11 parts, 12 parts, 13 parts or 14 parts etc.；
Defoamer 1-3 parts, such as 1.5 parts, 2 parts, 2.5 parts or 2.8 parts etc.；
100 parts of deionized water；
Wherein, the polyacrylate dispersion is prepared by the following raw material by weight：
Acrylic acid 30-38 parts, such as 32 parts, 33 parts, 34 parts, 35 parts, 36 parts or 37 parts etc.；
Vinylacetate 5-10 parts, such as 6 parts, 7 parts, 8 parts, 9 parts etc.；
Butyl methacrylate 5-10 parts, such as 6 parts, 7 parts, 8 parts, 9 parts etc.；
Maleic acid 1-5 parts, such as 2 parts, 3 parts, 4 parts or 4.5 parts etc.；
Emulsifying agent 6-8 parts, such as 6.5 parts, 7 parts or 7.5 parts etc.；
Initiator 0.1-0.3 parts, such as 0.2 part etc.；
100 parts of deionized water.
Used as preferred technical scheme, the slurry is prepared by the following raw material by weight：
Wherein, the polyacrylate dispersion is prepared by the following raw material by weight：
Used as preferred technical scheme, the slurry is prepared by the following raw material by weight：
Wherein, the polyacrylate dispersion is prepared by the following raw material by weight：
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 hypochloritises, 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
To in reaction mass, acetic anhydride is added to carry out esterification, it is 7 to control pH with NaOH, and 3-5 hours, reaction are reacted at 30-35 DEG C
After the completion of, it is standby to 8.0-10.0 slurry pH value to be adjusted with NaOH；Above-mentioned modified starch slip is added in double roller cylinder exsiccator,
Moment gelatinizing degeneration 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 granule of thin slice micronizing 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 sodium lauryl sulphate and/or OP-10.
It is (1-2) that the emulsifying agent is volume ratio:1 sodium lauryl sulphate 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) 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, obtains institute
State the starch textile size of substitution for PVA.
Compared with prior art, beneficial effects of the present invention are：
There is synergism, the spinning sizing agent for obtaining between each component in the polyacrylic weaving serosity that the present invention is provided
Serous coat elasticity it is big, its fracture strength is up to 4.550N/mm2, up to 6.22%, the heat stability of slurry is high for elongation at break,
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, the slurry are prepared by the following raw material by weight：
Wherein, the polyacrylate dispersion is prepared by the following raw material by weight：
The emulsifying agent is sodium lauryl sulphate.
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 hypochloritises, 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 modified starch slip is added in double roller cylinder exsiccator, the pressure of temperature, 5.0bar at 115 DEG C
Rotating speed gelatinizing of the lower moment degeneration of power, 4rpm, and flakiness is dried in 2min；Then by thin slice micronizing to 15 μ
It is obtained after m-25 μm of granule.
The preparation method of the 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, obtains the substitution for PVA
Starch textile size.
Embodiment 2
A kind of starch textile size, the slurry are prepared by the following raw material by weight：
Wherein, the polyacrylate dispersion is prepared by the following raw material by weight：
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 hypochloritises, 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 modified starch slip is added in double roller cylinder exsiccator, the temperature, 8.0bar at 125 DEG C
Rotating speed gelatinizing of the lower moment degeneration of pressure, 7rpm, and flakiness is dried in 5min；Then by thin slice micronizing to 15
It is obtained after μm -25 μm of granule.
The preparation method of the 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, obtains the substitution for PVA
Starch textile size.
Embodiment 3
A kind of starch textile size, the slurry are prepared by the following raw material by weight：
Wherein, the polyacrylate dispersion is prepared by the following raw material by weight：
It is 1 that the emulsifying agent is volume ratio:1 sodium lauryl sulphate 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 Maninot esculenta crantz.
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritises, 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, reacts 4 hours at 33 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.0；Above-mentioned modified starch slip is added in double roller cylinder exsiccator, temperature at 120 DEG C,
The pressure of 6.0bar, rotating speed gelatinizing of the lower moment degeneration of 5rpm, and flakiness is dried in 3min；Then by thin slice ultra micro
It is obtained after being crushed to 15 μm -25 μm of granule.
The preparation method of the 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, obtains institute
State the starch textile size of substitution for PVA.
Embodiment 4
A kind of starch textile size, the slurry are prepared by the following raw material by weight：
Wherein, the polyacrylate dispersion is prepared by the following raw material by weight：
It is 2 that the emulsifying agent is volume ratio:1 sodium lauryl sulphate 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 silicon dioxide；The 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 Maninot esculenta crantz.
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritises, 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, reacts 4 hours at 33 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.0；Above-mentioned modified starch slip is added in double roller cylinder exsiccator, temperature at 120 DEG C,
The pressure of 6.0bar, rotating speed gelatinizing of the lower moment degeneration of 5rpm, and flakiness is dried in 3min；Then by thin slice ultra micro
It is obtained after being crushed to 15 μm -25 μm of granule.
The preparation method of the 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, obtains institute
State the starch textile size of substitution for PVA.
Embodiment 5
A kind of starch textile size, the slurry are prepared by the following raw material by weight：
Wherein, the polyacrylate dispersion is prepared by the following raw material by weight：
It is 1.5 that the emulsifying agent is volume ratio:1 sodium lauryl sulphate 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 Maninot esculenta crantz.
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritises, 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, reacts 4 hours at 33 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.0；Above-mentioned modified starch slip is added in double roller cylinder exsiccator, temperature at 120 DEG C,
The pressure of 6.0bar, rotating speed gelatinizing of the lower moment degeneration of 5rpm, and flakiness is dried in 3min；Then by thin slice ultra micro
It is obtained after being crushed to 15 μm -25 μm of granule.
The preparation method of the 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, obtains institute
State the starch textile size of substitution for PVA.
Comparative example 1
A kind of spinning sizing agent, the slurry are prepared by the following raw material by weight：
Wherein, the polyacrylate dispersion is prepared by the following raw material by weight：
It is 2 that the emulsifying agent is volume ratio:1 sodium lauryl sulphate 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 Maninot esculenta crantz.
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritises, 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, reacts 4 hours at 32 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.5；Above-mentioned modified starch slip is added in double roller cylinder exsiccator, temperature at 122 DEG C,
The pressure of 6.0bar, rotating speed gelatinizing of the lower moment degeneration of 6.5rpm, and flakiness is dried in 4min；Then thin slice is surpassed
Micropowder is obtained after being broken to 15 μm -25 μm of granule.
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 are prepared by the following raw material by weight：
Wherein, the polyacrylate dispersion is prepared by the following raw material by weight：
It is 2 that the emulsifying agent is volume ratio:1 sodium lauryl sulphate 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 Maninot esculenta crantz.
Starch and 100 parts of water are deployed into slip, add liquor natrii hypochloritises, 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, reacts 4 hours at 32 DEG C, after the completion of reaction, uses NaOH
Adjust slurry pH value standby to 9.5；Above-mentioned modified starch slip is added in double roller cylinder exsiccator, temperature at 122 DEG C,
The pressure of 6.0bar, rotating speed gelatinizing of the lower moment degeneration of 6.5rpm, and flakiness is dried in 4min；Then thin slice is surpassed
Micropowder is obtained after being broken to 15 μm -25 μm of granule.
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 1-5 and comparative example 1-2 are obtained：
1st, the test of the fracture strength and elongation at break of serous coat
(1) making of serous coat
It is that 650mm × 400mm, thickness are put on special, spider set screw for the polyfluortetraethylene plate of 5mm by area
Tip on, dipped on polyfluortetraethylene plate with a small amount of water, 0.3mm thick mylar be laid in politef then
The serosity of 3% concentration on plate, is configured, and 1h is incubated at 95 DEG C.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 rod, serosity 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 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, calculates its meansigma methods, further according to serous coat THICKNESS CALCULATION fracture strength.Test result such as 1 institute of table
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 apparatuss determine the viscosity of serosity.The slurry viscosity of the different time at 95 DEG C after 95 DEG C of mashing off 1h, is determined respectively, is calculated
Thermoviscosity stability.Test result is as shown in table 2.
Table 1
Table 2
Knowable to test result：The viscosity of serosity 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 serosity；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 1-5 is removed, the performance of the slurry for obtaining is not so good as
The performance of the slurry that embodiment 1-5 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, to the equivalence replacement and auxiliary element of 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, it is characterised in that the slurry is prepared by the following raw material by weight：
Wherein, the polyacrylate dispersion is prepared by the following raw material by weight：
2. spinning sizing agent according to claim 1, it is characterised in that the slurry is prepared by the following raw material by weight
Obtain：
Wherein, the polyacrylate dispersion is prepared by the following raw material by weight：
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 the following raw material by weight：
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；To in reaction mass add acetic anhydride to carry out esterification again, use
It is 7 that NaOH controls pH, reacts 3-5 hours 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 modified starch slip is added in double roller cylinder exsiccator, the pressure of temperature, 5.0bar-8.0bar at 115 DEG C -125 DEG C
Rotating speed gelatinizing of the lower moment degeneration of power, 4rpm-7rpm, and flakiness is dried in 2-5min；Then by thin slice superfine powder
It is obtained after being broken to 15 μm -25 μm of granule.
6. the spinning sizing agent according to one of claim 1-5, it is characterised in that the emulsifying agent is sodium lauryl sulphate
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 sodium lauryl sulphate 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 |
|---|---|---|---|
| CN201611015508.4A CN106521952A (en) | 2016-11-18 | 2016-11-18 | Starch textile size |
Applications Claiming Priority (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107805944A (en) * | 2017-11-29 | 2018-03-16 | 苏州润弘贸易有限公司 | The spinning sizing agent of thin fabric used in |
| CN107964793A (en) * | 2017-12-20 | 2018-04-27 | 苏州润弘贸易有限公司 | Spinning sizing agent |
| CN109914107A (en) * | 2018-11-02 | 2019-06-21 | 鲁育豪 | A kind of preparation process of starch 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 |
| 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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| 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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Cited By (3)
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| CN107805944A (en) * | 2017-11-29 | 2018-03-16 | 苏州润弘贸易有限公司 | The spinning sizing agent of thin fabric used in |
| CN107964793A (en) * | 2017-12-20 | 2018-04-27 | 苏州润弘贸易有限公司 | Spinning sizing agent |
| CN109914107A (en) * | 2018-11-02 | 2019-06-21 | 鲁育豪 | A kind of preparation process of starch spinning sizing agent |
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