CN106380534B - A kind of synthetic method and its application of acrylic acid series multiple copolymer - Google Patents
A kind of synthetic method and its application of acrylic acid series multiple copolymer Download PDFInfo
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- CN106380534B CN106380534B CN201610738780.9A CN201610738780A CN106380534B CN 106380534 B CN106380534 B CN 106380534B CN 201610738780 A CN201610738780 A CN 201610738780A CN 106380534 B CN106380534 B CN 106380534B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/16—Amines or polyamines
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
- D06P5/08—After-treatment with organic compounds macromolecular
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- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Water Supply & Treatment (AREA)
- Textile Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
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Abstract
The invention discloses a kind of synthetic method of acrylic acid series multiple copolymer and its applications.Current chelated dispersants are high molecular polymer, and difference, the difference of synthesis technology of monomeric species and ratio, obtained product is in performance with apparent difference.The technical solution adopted by the present invention are as follows: alpha-alkene sulfonate, acrylamide, n-vinyl pyrrolidone and a part of polymerizable organic carboxyl acid are added in water, then alkaline silicate is added dropwise, stirring, after the stable dispersion liquid of equal formation, initiator and remaining polymerizable organic carboxyl acid is added dropwise, control temperature polymerize in aqueous solution, is finally 5.0-9.5 with alkali neutralization to pH, and acrylic acid series multiple copolymer is made.Acrylic acid series multiple copolymer of the invention have good chelating dispersibility, can well chelated mineral particle while, can also adsorb and disperse various particle dirts and dyestuff；Soap releasing agent, detergent builder compound after can be used as pre-treatment chelated dispersants, pattern-printing and dyeing.
Description
Technical field
The present invention relates to field of macromolecule polymerization, the synthetic method of specifically a kind of acrylic acid series multiple copolymer and
It is applied.
Background technique
The dyeing and finishing processing of textile is most of to be carried out in water, the Ca in water2+、Mg2+、Cu2+、Fe3+、Mn2+、Zn2+Equal gold
Belong to ion insoluble metallic salt easy to form to be deposited on fabric and equipment, not only influences product quality, but also be easy to cause equipment knot
Dirt.The dross that the generation of sediment and other dirts generate in dyeing and finishing process in order to prevent, slowly dissolves and removes and set
Standby interior silicon dirt, calcium soap precipitates object and oligomer prevent metal salt to the recontamination of various fibers, improve bleaching, dyeing, print
The whiteness of flower prod, vividness, color fastness, while the white background recontamination of Printing and Yarn-dyed fabric is prevented, in preceding processing
Middle that various chelated dispersants are added, dyeing post-processing is mainly used for the products such as soaping agent, white background releasing agent.
Main component is surfactant and builder in detergent, and builder has enhancing surface-active, increases dirt
Suspension, dispersion, solubilising, improve soil redeposition the effects of；There is softening of water simultaneously, the alkaline buffer etc. of detergent is provided
Effect, and generally believe cost performance at present good builder is sodium tripolyphosphate, but the raw material easily causes eutrophication etc. and asks
It inscribes and is limited, various builder as substitute for phosphate come into being, mainly 4A zeolite, phyllosilicate, in order to promote the dirt point of product
The ability of dissipating and antiredeposition performance, various horse propylene copolymers and acrylate homopolymer are compounded in detergent.But still it cannot
The properties of Powdered Detergent Containing Phosphate are fully achieved, therefore various builder as substitute for phosphate are still the groundwork of research and development.
Main chelated dispersants are many kinds of currently on the market, and polyacrylic is that the chelated dispersants of representative are wide
General use can prevent product macula lutea, dyeing defect, dyestuff from returning and be stained with.River water bring suspended matter problem effect is used for improving
Also highly significant.However chelated dispersants be high molecular polymer, difference, the difference of synthesis technology of monomeric species and ratio,
Obtained product has apparent difference in performance, and each company is constantly promoted by the selection of monomer and the research of technique
The performance of copolymer, to improve the competitiveness of product in market.
Summary of the invention
The technical problem to be solved by the present invention is to the synthesis by multiple copolymer, and it is total to provide a kind of acrylic acid series multiple
Polymers is used as highly effective chelating dispersing agent, to be obviously improved the chelating and dispersion performance of product；Simultaneously for dyeing and printing
It soaps after spending, to significantly improve the releasing performance of dyestuff；Can also be used as a kind of builder as substitute for phosphate, compounding is used in detergent, with
It improves the detergency of non-phosphide detergent and prevents ash-deposition performance.
For this purpose, the present invention adopts the following technical scheme that: a kind of synthetic method of acrylic acid series multiple copolymer, step
It is as follows: alpha-alkene sulfonate, acrylamide, n-vinyl pyrrolidone and a part of polymerizable organic carboxyl acid are added in water,
Then alkaline silicate is added dropwise, stirs, waits after forming stable dispersion liquid, initiator and remaining polymerizable organic carboxylic is added dropwise
Acid, control temperature polymerize in aqueous solution, are finally 5.0-9.5 with alkali neutralization to pH, acrylic acid series multiple copolymer is made.
Mechanism of the invention are as follows: suitable alkaline silicate, alkaline silicate and acidity list are added in polymer monomers
After body neutralizes, extremely tiny silicate particle is generated, while using the hungry method synthetic copolymer being added dropwise, and copolymer is to silicon
Granulates have extremely strong dispersion and stabilization.The tiny silicate particle has high-specific surface area and high surface energy, to dirt
Adsorption capacity and dispersibility etc. be obviously improved.Multiple amide containings, pyrroles are introduced in acrylic copolymer simultaneously
Alkanone group, wherein pyrrolidones contains five-membered ring, bigger to the affinity of most organic dyestuff and dirt, to greatly improve
Dirt absorption, Dye Adsorption and the metal ion chelating capacity of copolymer.
As further improving and supplementing to above scheme, the present invention takes following technical measures:
Raw material dosage unit meter by weight is as follows: polymerizable organic carboxyl acid 50-85%, alpha-alkene sulfonate 5-
10%, acrylamide 3-10%, n-vinyl pyrrolidone 2-5%, alkaline silicate 5-25%, the total dosage of above-mentioned raw materials are considered as
100 parts；Initiator amount is 2.0-7.0 parts, and water consumption is 100-200 parts.
The polymerizable organic carboxyl acid is one of following compound or any combination: acrylic acid, itaconic acid, Malaysia
Acid, malic acid, Alpha-hydroxy acrylic acid, methacrylic acid, fumaric acid.
The chemical formula of the alkaline silicate is R2O·nSiO2, R in formula2O is alkali metal oxide, n 1.0-3.5；It is excellent
It is selected as alkaline sodium silicate.
Above-mentioned initiator is the compound of persulfate or persulfate and bisulfites, persulfate dosage with
The weight ratio of bisulfites dosage is in 0.5-5.0:1.
The preparation method of above-mentioned acrylic acid series multiple copolymer, the specific steps of which are as follows: by the polymerizable organic of 10-30%
Carboxylic acid, alpha-alkene sulfonate, acrylamide, n-vinyl pyrrolidone and water, are uniformly mixed, and lead to nitrogen, are warming up to 60-
65 DEG C, alkaline silicate is then added dropwise, stirs, waits after forming stable dispersion liquid, the initiator of 20-50%, reaction temperature is added
Degree control reacts 10-40 minutes at 75-85 DEG C, starts that remaining polymerizable organic carboxyl acid and initiator, time for adding control is added dropwise
System was at 1-2 hour, and the reaction was continued 2-4 hours after being added dropwise, and was cooled to 35 DEG C hereinafter, with liquid alkaline adjusting pH value in 5.0-9.5,
Filtering and discharging.
The acrylic acid series multiple copolymer that above-mentioned synthetic method obtains is used as pre-treatment chelated dispersants.
The acrylic acid series multiple copolymer that above-mentioned synthetic method obtains makes as the releasing agent of soaping after pattern-printing and dyeing
With.
The acrylic acid series multiple copolymer that above-mentioned synthetic method obtains is used as detergent builder compound.
Acrylic acid series multiple copolymer of the invention has the advantages that
1. having excellent chelating dispersion performance, it is mainly used in the pre-treating technology of dyeing and printing process, plays chelating Ca2+、
Mg2+、Cu2+、Fe3+、Mn2+、Zn2+The characteristics of equal metal ions, has the function of very strong scale inhibition, changes dirt.
2. having the function of excellent releasing of soaping, for soaping after dyeing and printing technology, can remove a large amount of not anti-
Reactive dye and hydrolised dye are answered, while having good white background releasing function.
3. having the suspension of good dirt and buffer capacity that can promote washing for detergent as the builder in detergent
Ability and dirt suspending power are washed, garment whiteness is improved and keeps and reduce the performances such as the ash deposition of non-phosphide detergent.
Specific embodiment
Following embodiment is only presently preferred embodiments of the present invention.According to the technical essence of the invention to following reality
Any simple modification, equivalent change and modification made by example are applied, are fallen within the protection scope of the present invention.
Embodiment 1
250 grams of deionized water of the addition in 1000ml four-hole boiling flask, 10 grams of acrylic acid, 20 grams of maleic acid, alpha-olefin sulfonic acid
10 grams of salt, 12 grams of acrylamide, 5 grams of n-vinyl pyrrolidone, stirring to whole dissolutions is passed through nitrogen, is warming up to 65 DEG C, delays
Slow that 30 grams of 36% sodium silicate (modulus n:2.2-2.4) is added dropwise, reaction dispersion after twenty minutes, is added 2 grams of potassium peroxydisulfate, reaction temperature
80 DEG C are risen to, reaction temperature is controlled at 75-85 DEG C, keeps the temperature 20 minutes, and dropwise addition mass concentration is 75 grams of 10% potassium persulfate solution,
90 grams of acrylic acid are added dropwise simultaneously, rate of addition slowly uniformly will be added dropwise in 1.5-2 hours, continue insulation reaction 2.5-3
Hour, cooling adjusts pH value in 6.0-8.0, filtering and discharging with liquid alkaline.
Embodiment 2
300 grams of deionized water of the addition in 1000ml four-hole boiling flask, 10 grams of acrylic acid, 30 grams of maleic acid, alpha-olefin sulfonic acid
10 grams of salt, 10 grams of acrylamide, 8 grams of n-vinyl pyrrolidone, stirring to whole dissolutions is passed through nitrogen, is warming up to 65 DEG C, delays
It is slow that 30 grams of 40% sodium metasilicate aqueous solution is added dropwise, react dispersion after twenty minutes, 2 grams of sodium peroxydisulfate of addition, 2 grams of sodium hydrogensulfite,
Reaction temperature rises to 80 DEG C, and reaction temperature is controlled at 75-85 DEG C, keeps the temperature 20 minutes, and dropwise addition mass concentration is 10% sodium peroxydisulfate
55 grams of solution, while 95 grams of acrylic acid are added dropwise, rate of addition slowly uniformly will be added dropwise in 1.5-2 hours, continue to keep the temperature
Reaction 2.5-3 hours, cooling adjust pH value in 6.0-8.0, filtering and discharging with liquid alkaline.
Embodiment 3
300 grams of deionized water of the addition in 1000ml four-hole boiling flask, 10 grams of acrylic acid, 20 grams of maleic acid, 10 grams of itaconic acid,
10 grams of alpha-alkene sulfonate, 12 grams of acrylamide, 5 grams of n-vinyl pyrrolidone, stirring to whole dissolutions is passed through nitrogen, rises
80 grams of 36% sodium silicate (modulus n:2.2-2.4) is slowly added dropwise to 65 DEG C in temperature, and after twenty minutes, ammonium persulfate 2 is added in reaction dispersion
Gram, reaction temperature rises to 80 DEG C, and reaction temperature is controlled at 75-85 DEG C, keeps the temperature 20 minutes, and dropwise addition mass concentration is 10% persulfuric acid
55 grams of ammonium salt solution, while 95 grams of acrylic acid are added dropwise, rate of addition will slowly uniformly be added dropwise, after continuation of insurance in 1.5-2 hours
Temperature reaction 2.5-3 hours, cooling adjust pH value in 8.5-9.5, discharging with liquid alkaline.
For the clearer effect for illustrating product of the present invention and having, the product of each embodiment is selected to oppose with commercial product
Than evaluating the difference of each product.
It is opposed with the present embodiment 1 and commercial product chelated dispersants TF-510 (Zhejiang Province Chuanhua Co., Ltd's production)
Than the difference of both evaluations chelating dispersion force the results are shown in Table 1.
The said goods evaluation method is as follows:
1, the instrument used
Electronic balance (precision 0.0001g), electronic balance (precision: 0.01g), accurate pH meter (precision 0.01), volumetric flask
(500ml), pipette (100ml, 10ml, 20ml), acid buret (50ml), conical flask (250ml), graduated cylinder (10ml,
50ml), colorimetric cylinder (100ml).
2, reagent used
Ammonia-ammonium chloride buffer solution 1000ml, pH value of solution=10；Calcium acetate standard titration solution, c=0.25mol/L；It is mixed
Close indicator: acid chrome blue K+naphthol green B+potassium chloride (1+2+40 mass ratio)；Ammonium ferric sulfate solution, c=0.1mol/L；EDTA
Standard solution, c=0.05mol/L；Indicator: the sulfosalisylic aqueous acid that mass fraction is 2%；Precipitated calcium carbonate (>=300
Mesh)；Hydrochloric acid standard solution, c=1.0mol/L；NaOH standard solution, c=0.5mol/L.
The chelating agent of known quality is titrated, with the calcium acetate of known concentration to measure chelating value.In pH=in titration process
In 10 ammonia-ammonium chloride buffer solution, under the action of metal mixed indicator, solution is sapphirine, when chelating agent used with
After calcium fully reacting in calcium acetate, then when calcium acetate is added dropwise, excessive calcium will obtain purple with indicator reaction in solution
Complex compound, solution becomes aubergine, as titration end-point at this time.Chelated calcium ability chelates Ca with every gram of chelating agent sample2+
Amount (with CaCO3) indicate, it is stronger to be worth bigger proof chelating calcium ability.
Excessive ammonium ferric sulfate solution is added into the chelating agent sample solution of known quality, make all chelating agents all with
Iron ion fully reacting, remaining iron ion are titrated with EDTA standard solution, and in the presence of indicator, solution is by purplish red discoloration
It is titration end-point at glassy yellow.The ability of chelated iron chelates Fe with every gram of chelating agent sample3+Amount (with Fe2O3) indicate, value
Bigger proof chelated iron ability is stronger.
The chelating agent solution that known quality is measured in colorimetric cylinder, weighs the CaCO dried3Powder imports colorimetric cylinder, acute
Strong concussion 100 times up and down, in the static 30min of room temperature, pipette 20ml solution, the normal hydrochloric acid for the amount of reordering is molten at colorimetric cylinder 50ml
Liquid, in the presence of indicator, being titrated to claret with standardised sodium hydroxide standard solution is terminal, while doing blank.Carbonic acid
Calcium dispersibility is with every gram of chelating agent sample dispersion CaCO3Amount indicate, it is stronger to be worth bigger proof calcium carbonate dispersibility.
Soaping condition:
Cloth used in 1.:aFor reactive brilliant red cotton yarn card,bFor reactive turquoise blue cotton yarn card；
2. technique of soaping: soaping agent dosage 0.5g/L, bath raio 1:10,90 DEG C of temperature of soaping, soap time 10min.
3. fastness test method: fabric abrasive fastness is that " textile color stability tests antifriction according to GB/T3920-1997
Wipe color fastness " test；According to GB/T 3921.5-1997, " textile color stability tests color fastness to washing to color fastness to washing: test
5 " it tests；Staining fastness is evaluated, uses control calico as lining cloth, is put into togerther with painting cloth in liquid of soaping, in process conditions of soaping
Under washed, to test staining stickers lining cloth K/S value is measured on Computer color testing instrument, K/S value is smaller, it was demonstrated that anti-staining effect
Better.
Experimental result see the table below
Acrylic acid series multiple copolymer of the present invention is used as releasing agent of soaping as can be seen from the above table, Neng Gouxian
The every color fastness for improving the reactive dye especially more bright-coloured reactive brilliant red of color, reactive turquoise blue dyed fabric is write, is such as soaped
Fastness, fastness to rubbing and anti-staining performance.Patience color fastness can promote 0.5 grade, and colour fastness to rubbing (dry and wet fastness) is equal
Promote 0.5 grade；Especially anti-staining performance, promotion become apparent, and can promote 30~50%.
Acrylic acid series multiple copolymer of the present invention, to soap performance and the releasing performance of Fabrics Dyed with Reactive Dyes
It is obviously improved, while performance is also superior to original soaping agent.
Antiredeposition effect is carried out using synthesized acrylic acid series multiple copolymer as the anti redeposition agent in detergent
Test and with existing market similar product compare.
Washing powder recycles scourability experimental test technique: slurry is 250ppm hard water, and washing powder concentration is 2g/l,
Soiling solution 3mL is added in each bathtub, 30 DEG C of temperature, test is each 8 pieces of JB-00 calico piece with pieces of cloth, pieces of cloth specification: 6cm ×
6cm, the single wash time: 20min is rinsed 2 times, and recycle washing times: 20 times, washing facility is the vertical decontamination of III type of RHLQ-
Machine, revolving speed 120r/min.After period every 5 circulations washing, the whiteness for drying test piece is measured.Repeated washing 20
Test deposition ash content obtains ash content quality in 800 DEG C of ± 10 DEG C of high temperature furnaces after calcination 6h after secondary.
Anti-stain redeposition merit rating method:
Spot in washing process in detergent water in suspension, the ability for inhibiting it to be adsorbed onto fabric surface are washed for characterization
Wash one of the index of scourability of agent.Two index comprehensive evaluations of ash content can be kept and deposited using whiteness.Whiteness is kept
After referring to that white fabrics are washed in the cleaning solution of pollution, fabric white declines situation, and it is dirty to characterize detergent suspension in washing process
The ability of stain.It deposits ash content to refer to after repeatedly washing, the inoganic solids object adsorbed on fabric.
After washing according to experimental condition, the whiteness value of calico and the deposition ash content of test pieces of cloth are read respectively.Whiteness decline
It is smaller, illustrate that the anti-stain redeposition ability of detergent is better；It is opposite then poorer.Ash content is lower, then it represents that the anti-pollution of detergent
Stain redeposition ability is better.
Experimental result see the table below
The detergent that can be seen that acrylic acid series multiple copolymer synthesized by the addition present invention from the data in upper table can
To effectively improve, garment whiteness is kept and deposition ash content, anti-stain redeposition ability are better than similar product in the market.
Claims (9)
1. a kind of synthetic method of acrylic acid series multiple copolymer, which is characterized in that steps are as follows: alpha-olefin sulphur being added in water
Hydrochlorate, acrylamide, n-vinyl pyrrolidone and a part of polymerizable organic carboxyl acid, are then added dropwise alkaline silicate, stirring
After forming stable dispersion liquid, the initiator of 20-50% is added, reaction temperature controls at 75-85 DEG C, reacts 10-40 minutes, open
Begin that remaining polymerizable organic carboxyl acid and initiator is added dropwise, control temperature polymerize in aqueous solution, is finally with alkali neutralization to pH
5.0-9.5 acrylic acid series multiple copolymer is made；
Raw material dosage unit meter by weight is as follows: polymerizable organic carboxyl acid 50-85%, alpha-alkene sulfonate 5-10%, propylene
Amide 3-10%, n-vinyl pyrrolidone 2-5%, alkaline silicate 5-25%, the total dosage of above-mentioned raw materials are considered as 100 parts；Initiator
Dosage is 2.0-7.0 parts, and water consumption is 100-200 parts.
2. synthetic method according to claim 1, which is characterized in that the polymerizable organic carboxyl acid is following compound
One of or any combination: acrylic acid, itaconic acid, maleic acid, malic acid, methacrylic acid, fumaric acid.
3. synthetic method according to claim 1, which is characterized in that the chemical formula of the alkaline silicate is R2O·
nSiO2, R in formula2O is alkali metal oxide, n 1.0-3.5.
4. synthetic method according to claim 3, which is characterized in that the alkaline silicate is alkaline sodium silicate.
5. synthetic method according to claim 1, which is characterized in that the initiator is persulfate or persulfuric acid
The weight ratio of the compound of salt and bisulfites, persulfate dosage and bisulfites dosage is in 0.5-5.0:1.
6. synthetic method according to claim 1, which is characterized in that specific steps are as follows: by the polymerizable of 10-30%
Organic carboxyl acid, alpha-alkene sulfonate, acrylamide, n-vinyl pyrrolidone and water, are uniformly mixed, and lead to nitrogen, heating
To 60-65 DEG C, alkaline silicate is then added dropwise, after stirring forms stable dispersion liquid, the initiator of 20-50%, reaction temperature is added
Degree control reacts 10-40 minutes at 75-85 DEG C, starts that remaining polymerizable organic carboxyl acid and initiator, time for adding control is added dropwise
System was at 1-2 hour, and the reaction was continued 2-4 hours after being added dropwise, and was cooled to 35 DEG C hereinafter, with liquid alkaline adjusting pH value in 5.0-9.5,
Filtering and discharging.
7. the application for the acrylic acid series multiple copolymer that synthetic method described in claim 1 obtains, which is characterized in that as preceding place
Chelated dispersants are managed to use.
8. the application for the acrylic acid series multiple copolymer that synthetic method described in claim 1 obtains, which is characterized in that as stamp
Releasing agent use of soaping after dyeing.
9. the application for the acrylic acid series multiple copolymer that synthetic method described in claim 1 obtains, which is characterized in that as washing
Builder uses.
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| CN112759696B (en) * | 2020-12-28 | 2022-07-26 | 辽宁恒星精细化工有限公司 | Preparation method of neutralizing acid for printing and washing of reactive dye |
| CN116284542B (en) * | 2023-03-01 | 2024-02-20 | 多恩生物科技有限公司 | Active anti-sticking soaping agent and preparation method thereof |
| CN116217796B (en) * | 2023-03-15 | 2023-10-03 | 上海宇昂水性新材料科技股份有限公司 | Multi-copolymer based on N-vinyl pyrrolidone and preparation method and application thereof |
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