CN105399857A - Method for modifying sodium alginate by utilizing monochlorotriazine arylamine sulfoacid - Google Patents
Method for modifying sodium alginate by utilizing monochlorotriazine arylamine sulfoacid Download PDFInfo
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Abstract
The invention discloses a method for modifying sodium alginate by utilizing monochlorotriazine arylamine sulfoacid. The method comprises the following steps: conducting first step reaction on cyanuric chloride and arylamine sulfoacid at 0-5 DEG C, then supplementally adding arylamine sulfoacid, and conducting second step reaction at 30-50 DEG C to generate monochlorotriazine arylamine sulfoacid; mixing monochlorotriazine arylamine sulfoacid and a sodium carbonate water solution, then adding the mixture into a sodium alginate water solution for modification, adjusting the pH of the reacting liquid to be 10-11 and the temperature to be 80-100 DEG C, and conducting stirring treatment for 30-90 min so as to obtain the sodium alginate water solution modified by monochlorotriazine arylamine sulfoacid; performing after-treatment to obtain sodium alginate modified by monochlorotriazine arylamine sulfoacid through. According to the method, monochlorotriazine arylamine sulfoacid is adopted for chemical modification on a sodium alginate pasty material, C2 and C3 site hydroxyls are blocked, the chemical bonding reaction of sodium alginate and active groups of active dye is shielded, and the surface color yield of printed cloth is improved.
Description
Technical field
The present invention relates to dyeing and printing auxiliary technical field, be specifically related to a kind of method utilizing a chloro-s-triazine arylamine sulfonic acid modified sodium alginate.
Background technology
Printing gum is the important component part of mill base, and affect the surperficial coloured light of PRINTED FABRIC, color evenness, pattern profile sharpness and feel etc., be thus the focus of printer author's common concern all the time.In order to promote that dye molecule is to the upper dye of fabric, in thickener molecular structure, the group having strong avidity or reaction with dyestuff can not be contained.
Sodium alginate is the first-selected thickener that reactive dyestuffs print Mierocrystalline cellulose and protein-based textiles, and this is relevant with the molecular structure of its uniqueness.It is connected by Isosorbide-5-Nitrae-glycosidic link with α-L-guluronic acid (G unit) by Isosorbide-5-Nitrae-poly-beta-D-mannuronic acid (M unit), and the random block linear polymer be made up of with certain proportion different GG, GM or MM fragment.Sodium alginate linear macromolecule interchain forms transient state reticulated structure by hydrogen bond and van der Waals interaction, and " pinning " backbone units C2, C3 position-OH and C6 position-COO
-with the large quantity of moisture of hydrogen bond obvolvent, there is the ability of good rheological and obvolvent moisture.And the C6 position of M unit and G unit is all-COO
-, with on reactive dyestuffs-SO
3 -repelling each other and being beneficial to dyestuff transfers on fiber when evaporating from thickener thin layer, completes dye process.But, C2, C3 position-OH of M unit and G unit also has certain reactive behavior, with on fiber-OH competes, can react with dye activity base generation chemical bonding when stamp high temperature evaporates, hinder dye molecule and interfibrous combination, cause cloth cover dye yield not high enough, color and luster withers secretly.
For this reason, the object of modified sodium alginate mostly is the chemical reactivity in shielding molecule in hydroxyl and reactive dyestuff molecule between active group.At present, many characteristic group'ss reaction (as etherificate, esterification etc.) that can participate in based on-OH of modified chemical scheme designed by most researchers, in the processing of less consideration stamp, in sodium alginate molecule-full-scale condition that reacts between OH and dye activity base.And in order to improve modified-reaction efficiency, often excessively strengthen modified condition and adopt high reactivity auxiliary agent, although improve hydroxyl substitution value, the side reaction of accompanying with it often causes the deterioration of the macromolecular degraded of sodium alginate and rheological property, causes the fundamental property losing printing gum.Such as: Chamberlain etc. are based on the acetylization reaction of acetic anhydride and sodium alginate hydroxyl, and substitution value up to 97.3%, but along with serious DeR in this process, causes system viscosity sharply to decline.The urea such as Coleman/phosphoric acid carries out phosphorylation to sodium alginate, and the strong acid character of phosphoric acid causes sodium alginate molecular rupture, and molecular weight is reduced to 38000Da from 64000Da.
Retain on the basis of printing gum fundamental property at sodium alginate, high effective and modified for what realize C2, C3 position-OH in its molecule, reduce itself and the chemical reactivity of dye activity base, the group close with dye activity base activity can be selected, carry out appropriate modification.S-triazine type active group is introduced modifier molecules by the present invention dexterously, proposes sodium alginate-modified novel method.Cyanuro is the active group that reactive dyestuffs are commonly used the most, and the Cl atom that heterocycle is connected with C atom has higher reactive behavior, be easy to by nucleophilic reagent give electronics-NH
2,-OH and-OR etc. replaced, and reaction is easy to control.The reaction of s-triazine and arylamine class is of paramount importance reaction in the synthesis of halo s-triazine reactive dyestuffs, and feature is that reaction can progressively be carried out in aqueous smoothly, and productive rate is also very high.Owing to applying water medium, for synthesis be separated all very favourable, turn avoid the organic solvent of expensive contaminate environment again.S-triazine active group can with the hydroxyl generation nucleophilic substitution reaction on Mierocrystalline cellulose, so on sodium alginate M unit and G unit C2, C3 hydroxyl position, introduce cyanuric chloride active group and sulfonic group anionic group, the reaction of thickener and reactive dyestuffs can be reduced to greatest extent, realize the object improving PRINTED FABRIC surface dye yield in theory.At present, also there is not been reported to carry out the research of this chemical modification to sodium alginate.
Summary of the invention
The invention provides a kind of method utilizing a chloro-s-triazine arylamine sulfonic acid modified sodium alginate, a chloro-s-triazine arylamine sulfonic acid is adopted to carry out chemical modification to sodium alginate thickener, close C2, C3 position hydroxyl, chemical bonding between shielding and reactive dyestuffs active group reacts, and improves the surperficial dye yield printing fabric.
Utilize a method for a chloro-s-triazine arylamine sulfonic acid modified sodium alginate, comprise the following steps:
(1) first cyanuric chloride and arylamine sulfonic acid are carried out the first step reaction temperature 0 ~ 5 DEG C, obtain dichloro s-triazine arylamine sulfonic acid, and then the supplementary arylamine sulfonic acid that adds carries out second step reaction generation one chloro-s-triazine arylamine sulfonic acid temperature 30 ~ 50 DEG C, a chloro-s-triazine arylamine sulfonic acid is as properties-correcting agent;
(2) first by a chloro-s-triazine arylamine sulfonic acid and aqueous sodium carbonate mixing, then join in sodium alginate aqueous solution and carry out modification, reaction solution pH to 10 ~ 11 are regulated in whole reaction process, temperature 80 ~ 100 DEG C, stir process 30 ~ 90 minutes, obtains a chloro-s-triazine arylamine sulfonic acid modified sodium alginate aqueous solution;
(3) the one chloro-s-triazine arylamine sulfonic acid modified sodium alginate aqueous solution obtain a chloro-s-triazine arylamine sulfonic acid modified sodium alginate through aftertreatment.
In step (1), the condition of described the first step reaction is: in 3 ~ 5 hours reaction times, pH controls 6 ~ 7, obtains dichloro s-triazine arylamine sulfonic acid.In the first step reaction, described cyanuric chloride and the mol ratio 1:0.98 of arylamine sulfonic acid.The condition of described second step reaction is: in 3 ~ 5 hours reaction times, pH controls 6 ~ 7.In second step reaction, described dichloro s-triazine arylamine sulfonic acid and the mol ratio 1:0.98 supplementing the arylamine sulfonic acid added.
Described arylamine sulfonic acid is containing sulfonic arylamine, as specifically selected Sulphanilic Acid, m-sulfanilic acid or naphthionic acid.
In step (2), a described chloro-s-triazine arylamine sulfonic acid and the mol ratio of sodium alginate repeated structural unit are 0.8 ~ 2.2:1.
The preparation of described sodium alginate aqueous solution comprises: by sodium alginate powder vacuum-drying to constant weight, then adds water and be uniformly mixed 20 ~ 40 minutes at 80 ~ 100 DEG C, is mixed with the sodium alginate aqueous solution that concentration is 0.008 ~ 0.012mol/L.
By sodium alginate powder vacuum-drying to constant weight, vacuum drying condition is 50 ~ 80 DEG C, 6 ~ 9 hours.
The stir speed (S.S.) of described stir process is 600 ~ 800r/min.
In step (3), described aftertreatment comprises: by the repeated multiple times precipitation of a chloro-s-triazine arylamine sulfonic acid modified sodium alginate aqueous solution acetone, and washing, dries to constant weight, be crushed to powder, obtain a chloro-s-triazine arylamine sulfonic acid modified sodium alginate.
A described chloro-s-triazine arylamine sulfonic acid modified sodium alginate aqueous solution and the volume ratio of acetone are 1:1.5 ~ 2.5.
The temperature of described oven dry is 50 ~ 80 DEG C.
The chloro-s-triazine arylamine sulfonic acid modified sodium alginate obtained, can be used as printing gum, carries out printing with reactive dye.
Compared with prior art, the present invention has following beneficial effect:
The present invention adopts a chloro-s-triazine arylamine sulfonic acid to the method for sodium alginate thickener modification, and the method is simple and convenient, and treatment facility requires low, and favorable reproducibility.Compare the method for modifying such as conventional etherificate and esterification, reaction conditions is gentle, and controllability is stronger.This properties-correcting agent has the active group structure identical with chloro-s-triazine type reactive dyestuffs, therefore modified, and the chemical bonding that can effectively block between sodium alginate C2, C3 position hydroxyl and reactive dyestuffs active group reacts.One chloro-s-triazine arylamine sulfonic acid modified sodium alginate possesses the fundamental property of printing gum, print the surperficial dye yield of fabric and rate of permeation and all have lifting to a certain degree compared with unmodified sodium alginate, can more than 10% be improved, and meticulous design can be printed, print the clear-cut of design, have broad application prospects in stamp is produced.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.After the content of having read the present invention's instruction, those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
(1) in the there-necked flask that 0.1mol cyanuric chloride is housed, trash ice and acetone is added successively, stirring to pulp 30min.0.098mol Sulphanilic Acid is dissolved in aqueous sodium carbonate, dropwise joins in there-necked flask.Whole reaction process, control pH6 ~ 7, temperature 0 ~ 5 DEG C, reacts 3 ~ 5 hours, uses thin layer chromatography endpoint detection, obtain dichloro s-triazine Sulphanilic Acid.Subsequently, then add 0.098mol Sodium sulfanilate solution, control pH6 ~ 7, temperature 30 ~ 50 DEG C, react 3 ~ 5 hours, use thin layer chromatography endpoint detection.After reaction terminates, by reaction solution vacuum filtration, get filtrate acid out, then vacuum filtration, get filter cake, vacuum-drying 24h, namely obtain a chloro-s-triazine Sulphanilic Acid, be ground into powder stand-by;
(2) sodium alginate (Shandong bright moon marine alga Group Co., Ltd, viscosity-average molecular weight is 550,000 ~ 650,000) powder is put into vacuum drying oven little of constant weight in 60 DEG C of dryings 8;
(3) in 1000mL there-necked flask, configuration concentration is the sodium alginate aqueous solution of 0.01mol/L, puts it in thermostat water bath, is uniformly mixed 30 minutes, obtains sodium alginate aqueous solution with electric mixer in 90 DEG C.
(4) by a chloro-s-triazine Sulphanilic Acid and aqueous sodium carbonate mixing, join in sodium alginate aqueous solution and carry out modification, the mol ratio of one chloro-s-triazine Sulphanilic Acid properties-correcting agent and sodium alginate repeated structural unit is 1:1, regulate agitator speed 700r/min, reaction solution pH10 ~ 11 are regulated in whole reaction process, stir process 60 minutes at 90 DEG C, obtains a chloro-s-triazine Sulphanilic Acid modified sodium alginate aqueous solution.
(5) by chloro-s-triazine Sulphanilic Acid modified sodium alginate aqueous solution acetone (the volume ratio 1:2 of a modified sodium alginate aqueous solution and acetone) repeated multiple times precipitation, washing, constant weight is dried at 60 DEG C, be crushed to powder, obtain a chloro-s-triazine Sulphanilic Acid modified sodium alginate.
(6) at bar magnet 10mm, speed of a motor vehicle 6m/min, magnetic force 3
#, carry out cotton fabric by utilizing reactive dye stamp under the printing condition of 150 order plain nets, print 10 × 10cm
2square pattern and long 100mm, wide 2mm wedge shaped pattern.Mill base prescription: the red P-4B of 1%K type refined lattice element, 5% urea, 1% reservehao S, 1% sodium bicarbonate, 70% former paste (former paste massfraction is 3%).
Under these conditions, sodium alginate (SA) and saturating net amount, surperficial dye yield, rate of permeation, Dry Sack irregularity, the pattern profile sharpness of a chloro-s-triazine Sulphanilic Acid modified sodium alginate (MSA) on cotton fabric by utilizing reactive dye stamp, pattern profile sharpness comprises the flower pattern sharpness ratio of wedge length and wedge length on screen cloth (on the fabric) and fineness (on fabric, the high and ratio of overall height of wedge shape half departs from the high per-cent with the ratio of overall height of wedge shape half on screen cloth).Sodium alginate and the printing performance of a chloro-s-triazine Sulphanilic Acid modified sodium alginate on cotton fabric as shown in table 1.
Table 1
As can be seen from Table 1, the saturating net of a chloro-s-triazine Sulphanilic Acid modified sodium alginate is good, and surperficial dye yield improves 11.78%, and rate of permeation improves 23.18%, can print the fine chemical wastewater of clear-cut.
Embodiment 2
(1) in the there-necked flask that 0.1mol cyanuric chloride is housed, trash ice and acetone is added successively, stirring to pulp 30min.0.098mol m-sulfanilic acid is dissolved in aqueous sodium carbonate, dropwise joins in there-necked flask.Whole reaction process, control pH6 ~ 7, temperature 0 ~ 5 DEG C, reacts 3 ~ 5 hours, uses thin layer chromatography endpoint detection, obtain dichloro s-triazine m-sulfanilic acid.Subsequently, add 0.098mol sodium m-aminobenzene sulfonate solution, control pH6 ~ 7, temperature 30 ~ 50 DEG C, react 3 ~ 5 hours, use thin layer chromatography endpoint detection.After reaction terminates, by reaction solution vacuum filtration, get filtrate acid out, then vacuum filtration, get filter cake, vacuum-drying 24h, namely obtain a chloro-s-triazine m-sulfanilic acid, be ground into powder stand-by;
(2) sodium alginate (Shandong bright moon marine alga Group Co., Ltd, viscosity-average molecular weight is 550,000 ~ 650,000) powder is put into vacuum drying oven little of constant weight in 60 DEG C of dryings 8;
(3) in 1000mL there-necked flask, configuration concentration is the sodium alginate aqueous solution of 0.01mol/L, puts it in thermostat water bath, is uniformly mixed 30 minutes with electric mixer in 90 DEG C.
(4) by a chloro-s-triazine m-sulfanilic acid properties-correcting agent and aqueous sodium carbonate mixing, add in sodium alginate aqueous solution and carry out modification, the mol ratio of one chloro-s-triazine m-sulfanilic acid properties-correcting agent and sodium alginate repeated structural unit is 1:1, regulate agitator speed 700r/min, reaction solution pH10 ~ 11 are regulated in whole reaction process, stir process 60 minutes at 90 DEG C, obtains a chloro-s-triazine m-sulfanilic acid modified sodium alginate aqueous solution.
(5) by chloro-s-triazine m-sulfanilic acid modified sodium alginate aqueous solution acetone (the volume ratio 1:2 of a modified sodium alginate aqueous solution and acetone) repeated multiple times precipitation, washing, constant weight is dried at 60 DEG C, be crushed to powder, obtain a chloro-s-triazine m-sulfanilic acid modified sodium alginate.
(6) at bar magnet 10mm, speed of a motor vehicle 6m/min, magnetic force 3
#, carry out cotton fabric by utilizing reactive dye stamp under the printing condition of 150 order plain nets, print 10 × 10cm
2square pattern and long 100mm, wide 2mm wedge shaped pattern.Mill base prescription: the red P-4B of 1%K type refined lattice element, 5% urea, 1% reservehao S, 1% sodium bicarbonate, 70% former paste (former paste massfraction is 3%).
Under these conditions, sodium alginate (SA) and saturating net amount, surperficial dye yield, rate of permeation, Dry Sack irregularity, the pattern profile sharpness of a chloro-s-triazine Sulphanilic Acid modified sodium alginate (MSA) on cotton fabric by utilizing reactive dye stamp, pattern profile sharpness comprises the flower pattern sharpness ratio of wedge length and wedge length on screen cloth (on the fabric) and fineness (on fabric, the high and ratio of overall height of wedge shape half departs from the high per-cent with the ratio of overall height of wedge shape half on screen cloth).Sodium alginate and the printing performance of a chloro-s-triazine m-sulfanilic acid modified sodium alginate on cotton fabric as shown in table 2.
Table 2
As can be seen from Table 2, the saturating net of a chloro-s-triazine m-sulfanilic acid modified sodium alginate is good, and surperficial dye yield improves 11.16%, and rate of permeation improves 22.88%, can print the fine chemical wastewater of clear-cut.
Embodiment 3
(1) in the there-necked flask that 0.1mol cyanuric chloride is housed, trash ice and acetone is added successively, stirring to pulp 30min.0.098mol is dissolved in aqueous sodium carbonate to Sulphanilic Acid, dropwise joins in there-necked flask.Whole reaction process, control pH6 ~ 7, temperature 0 ~ 5 DEG C, reacts 3 ~ 5 hours, uses thin layer chromatography endpoint detection, obtain dichloro s-triazine Sulphanilic Acid.Subsequently, add 0.098mol Sodium sulfanilate solution, control pH6 ~ 7, temperature 30 ~ 50 DEG C, react 3 ~ 5 hours, use thin layer chromatography endpoint detection.After reaction terminates, by reaction solution vacuum filtration, get filtrate acid out, then vacuum filtration, get filter cake, vacuum-drying 24h, namely obtain a chloro-s-triazine Sulphanilic Acid, be ground into powder stand-by;
(2) sodium alginate (Shandong bright moon marine alga Group Co., Ltd, viscosity-average molecular weight is 550,000 ~ 650,000) powder is put into vacuum drying oven little of constant weight in 60 DEG C of dryings 8;
(3) in 1000mL there-necked flask, configuration concentration is the sodium alginate aqueous solution of 0.01mol/L, puts it in thermostat water bath, stirs 30 minutes in 90 DEG C with electric mixer.
(4) by a chloro-s-triazine Sulphanilic Acid properties-correcting agent and sodium carbonate solution mixing, add in sodium alginate aqueous solution and carry out modification, the mol ratio of one chloro-s-triazine Sulphanilic Acid properties-correcting agent and sodium alginate repeated structural unit is 2:1, regulate agitator speed 700r/min, reaction solution pH10 ~ 11 are regulated in whole reaction process, stir process 60 minutes at 90 DEG C, obtains a chloro-s-triazine Sulphanilic Acid modified sodium alginate aqueous solution.
(5) by chloro-s-triazine Sulphanilic Acid modified sodium alginate aqueous solution acetone (the volume ratio 1:2 of a modified sodium alginate aqueous solution and acetone) repeated multiple times precipitation, washing, constant weight is dried at 60 DEG C, be crushed to powder, obtain a chloro-s-triazine Sulphanilic Acid modified sodium alginate.
(6) at bar magnet 10mm, speed of a motor vehicle 6m/min, magnetic force 3
#, carry out cotton fabric by utilizing reactive dye stamp under the printing condition of 150 order plain nets, print 10 × 10cm
2square pattern and long 100mm, wide 2mm wedge shaped pattern.Mill base prescription: the black B133% of 1%KN type refined lattice element, 5% urea, 1% reservehao S, 1% sodium bicarbonate, 70% former paste (former paste massfraction is 3%).
Under these conditions, sodium alginate (SA) and saturating net amount, surperficial dye yield, rate of permeation, Dry Sack irregularity, the pattern profile sharpness of a chloro-s-triazine Sulphanilic Acid modified sodium alginate (MSA) on cotton fabric by utilizing reactive dye stamp, pattern profile sharpness comprises the flower pattern sharpness ratio of wedge length and wedge length on screen cloth (on the fabric) and fineness (on fabric, the high and ratio of overall height of wedge shape half departs from the high per-cent with the ratio of overall height of wedge shape half on screen cloth).Sodium alginate and the printing performance of a chloro-s-triazine Sulphanilic Acid modified sodium alginate on cotton fabric as shown in table 3.
Table 3
As can be seen from Table 3, the saturating net of a chloro-s-triazine arylamine sulfonic acid modified sodium alginate is good, and surperficial dye yield improves 21.67%, and rate of permeation improves 18.32%, can print the fine chemical wastewater of clear-cut.
Embodiment 4
(1) in the there-necked flask that 0.1mol cyanuric chloride is housed, trash ice and acetone is added successively, stirring to pulp 30min.0.098mol Sulphanilic Acid is dissolved in aqueous sodium carbonate, dropwise joins in there-necked flask.Whole reaction process, control pH6 ~ 7, temperature 0 ~ 5 DEG C, reacts 3 ~ 5 hours, uses thin layer chromatography endpoint detection, obtain dichloro s-triazine Sulphanilic Acid.Subsequently, add 0.098mol Sodium sulfanilate solution, control pH6 ~ 7, temperature 30 ~ 50 DEG C, react 3 ~ 5 hours, use thin layer chromatography endpoint detection.After reaction terminates, by reaction solution vacuum filtration, get filtrate acid out, then vacuum filtration, get filter cake, vacuum-drying 24h, namely obtain a chloro-s-triazine Sulphanilic Acid, be ground into powder stand-by;
(2) sodium alginate (Shandong bright moon marine alga Group Co., Ltd, viscosity-average molecular weight is 550,000 ~ 650,000) powder is put into vacuum drying oven little of constant weight in 60 DEG C of dryings 8;
(3) in 1000mL there-necked flask, configuration concentration is the sodium alginate aqueous solution of 0.01mol/L, puts it in thermostat water bath, stirs 30 minutes in 90 DEG C with electric mixer.
(4) by a chloro-s-triazine Sulphanilic Acid properties-correcting agent and sodium carbonate solution mixing, add in sodium alginate aqueous solution and carry out modification, the mol ratio of one chloro-s-triazine Sulphanilic Acid properties-correcting agent and sodium alginate repeated structural unit is 1.5:1, regulate agitator speed 700r/min, reaction solution pH10 ~ 11 are regulated in whole reaction process, stir process 60 minutes at 90 DEG C, obtains a chloro-s-triazine Sulphanilic Acid modified sodium alginate aqueous solution.
(5) by chloro-s-triazine Sulphanilic Acid modified sodium alginate aqueous solution acetone (the volume ratio 1:2 of a modified sodium alginate aqueous solution and acetone) repeated multiple times precipitation, washing, is dried to constant weight, is crushed to powder at 60 DEG C.
(6) at bar magnet 10mm, speed of a motor vehicle 6m/min, magnetic force 3
#, carry out viscose fabric printing with reactive dye under the printing condition of 150 order plain nets, print 10 × 10cm
2square pattern and long 100mm, wide 2mm wedge shaped pattern.Mill base prescription: the red P-4B of 1%K type refined lattice element, 5% urea, 1% reservehao S, 1% sodium bicarbonate, 70% former paste (former paste massfraction is 3%).
Under these conditions, sodium alginate (SA) and saturating net amount, surperficial dye yield, rate of permeation, Dry Sack irregularity, the pattern profile sharpness of a chloro-s-triazine Sulphanilic Acid modified sodium alginate (MSA) on viscose fabric printing with reactive dye, pattern profile sharpness comprises the flower pattern sharpness ratio of wedge length and wedge length on screen cloth (on the fabric) and fineness (on fabric, the high and ratio of overall height of wedge shape half departs from the high per-cent with the ratio of overall height of wedge shape half on screen cloth).Sodium alginate and the printing performance of a chloro-s-triazine Sulphanilic Acid modified sodium alginate on viscose fabric as shown in table 4.
Table 4
As can be seen from Table 4, the saturating net of a chloro-s-triazine Sulphanilic Acid modified sodium alginate is good, and surperficial dye yield improves 21.87%, and rate of permeation improves 21.49%, can print the fine chemical wastewater of clear-cut.
Claims (10)
1. utilize a method for a chloro-s-triazine arylamine sulfonic acid modified sodium alginate, it is characterized in that, comprise the following steps:
(1) first cyanuric chloride and arylamine sulfonic acid are carried out the first step reaction temperature 0 ~ 5 DEG C, obtain dichloro s-triazine arylamine sulfonic acid, and then the supplementary arylamine sulfonic acid that adds carries out second step reaction generation one chloro-s-triazine arylamine sulfonic acid temperature 30 ~ 50 DEG C;
(2) first by a chloro-s-triazine arylamine sulfonic acid and aqueous sodium carbonate mixing, then join in sodium alginate aqueous solution and carry out modification, reaction solution pH to 10 ~ 11 are regulated in whole reaction process, temperature 80 ~ 100 DEG C, stir process 30 ~ 90 minutes, obtains a chloro-s-triazine arylamine sulfonic acid modified sodium alginate aqueous solution;
(3) the one chloro-s-triazine arylamine sulfonic acid modified sodium alginate aqueous solution obtain a chloro-s-triazine arylamine sulfonic acid modified sodium alginate through aftertreatment.
2. the method utilizing a chloro-s-triazine arylamine sulfonic acid modified sodium alginate according to claim 1, is characterized in that, in step (1), the condition of described the first step reaction is: in 3 ~ 5 hours reaction times, pH controls 6 ~ 7;
The condition of described second step reaction is: in 3 ~ 5 hours reaction times, pH controls 6 ~ 7.
3. the method utilizing a chloro-s-triazine arylamine sulfonic acid modified sodium alginate according to claim 1, is characterized in that, in step (1), in the first step reaction, and described cyanuric chloride and the mol ratio 1:0.98 of arylamine sulfonic acid;
In second step reaction, described dichloro s-triazine arylamine sulfonic acid and the mol ratio 1:0.98 supplementing the arylamine sulfonic acid added.
4. the method utilizing a chloro-s-triazine arylamine sulfonic acid modified sodium alginate according to claim 1, it is characterized in that, in step (2), a described chloro-s-triazine arylamine sulfonic acid and the mol ratio of sodium alginate repeated structural unit are 0.8 ~ 2.2:1.
5. the method utilizing a chloro-s-triazine arylamine sulfonic acid modified sodium alginate according to claim 1, it is characterized in that, in step (2), the preparation of described sodium alginate aqueous solution comprises: by sodium alginate powder vacuum-drying to constant weight, then add water and be uniformly mixed 20 ~ 40 minutes at 80 ~ 100 DEG C, being mixed with the sodium alginate aqueous solution that concentration is 0.008 ~ 0.012mol/L.
6. the method utilizing a chloro-s-triazine arylamine sulfonic acid modified sodium alginate according to claim 5, it is characterized in that, described vacuum drying condition is 50 ~ 80 DEG C, 6 ~ 9 hours.
7. the method utilizing a chloro-s-triazine arylamine sulfonic acid modified sodium alginate according to claim 1, is characterized in that, in step (2), the stir speed (S.S.) of described stir process is 600 ~ 800r/min.
8. the method utilizing a chloro-s-triazine arylamine sulfonic acid modified sodium alginate according to claim 1, it is characterized in that, in step (3), described aftertreatment comprises: by the repeated multiple times precipitation of a chloro-s-triazine arylamine sulfonic acid modified sodium alginate aqueous solution acetone, washing, dry to constant weight, be crushed to powder, obtain a chloro-s-triazine arylamine sulfonic acid modified sodium alginate.
9. the method utilizing a chloro-s-triazine arylamine sulfonic acid modified sodium alginate according to claim 8, is characterized in that, a described chloro-s-triazine arylamine sulfonic acid modified sodium alginate aqueous solution and the volume ratio of acetone are 1:1.5 ~ 2.5.
10. the method utilizing a chloro-s-triazine arylamine sulfonic acid modified sodium alginate according to claim 8, is characterized in that, the temperature of described oven dry is 50 ~ 80 DEG C.
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