CN1635008A - Macromolecular grafted carbon black containing sulfonic groups and method for preparation - Google Patents
Macromolecular grafted carbon black containing sulfonic groups and method for preparation Download PDFInfo
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- CN1635008A CN1635008A CN 200410093855 CN200410093855A CN1635008A CN 1635008 A CN1635008 A CN 1635008A CN 200410093855 CN200410093855 CN 200410093855 CN 200410093855 A CN200410093855 A CN 200410093855A CN 1635008 A CN1635008 A CN 1635008A
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- carbon black
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Abstract
The invention relates to a grafted carbon black containing sulfonic macromolecule and its preparation method belonging to the macromolecule grafted carbon black technology. The structure of said grafted carbon black is shown as follows: as shown in the right formula, CB represents carbon black particle and one of macromolecule grafted chains, R is CH2 or CONHC(CH3)2CH2. Said preparation method includes using sodium acrylic sulphonate or 2-acryloylamino-2-methyl propanesulfonic acid as sulfonic monomer, using acrylic acid or methacrylic acid as vinyl monomer, using ammonium persulphate and isopropyl alcohol as initiator, charging them into water in mass ratio, regulating the pH value to 1.0~7.0, reacting under the temperature of 15~70DEG C in ultrasonic field or with stirring to obtain grafted carbon black aqueous solution, precipitating by using acetone, then extracting to obtain the grafted carbon black. The advantages of the invention are: the grafted macromolecule chain has strong rigidity and big space steric hindrance, the dispersibility of the grafted carbon black in water is obviously higher than that of the polyacrylic acid grafted carbon black with same graft rate.
Description
Technical field
The present invention relates to a kind of sulfonic group macromolecular grafted carbon black and preparation method of containing, belong to the macromolecular grafted carbon black technology.
Background technology
Carbon black has excellent character, as good tint permanence, electroconductibility, weather resisteant and chemical stability, is often used as black pigment.But carbon black is again one of the most difficult dispersive kind in the pigment, and reason is because the avidity of carbon black and other material (organic solvent, water etc.) is less than the cohesive force between the carbon black particle.In order to improve the dispersiveness of carbon black in solvent, macromolecular grafted carbon black is one of effective means.
Along with people improve day by day to environmental protection requirement, water-borne coatings more and more comes into one's own.In order to improve the dispersiveness of carbon black in water-based system, people make the sterically hindered increasing between carbon black particle at carbon blacksurface grafting water-soluble polymer, hinder interparticle mutual reunion, the percentage of grafting height, and dispersion effect is good.The grafted water-soluble polymer mainly contains on carbon black at present: polyacrylic acid, polymethyl acrylic acid, polyvinyl alcohol, polyacrylamide, polyoxyethylene glycol, polymaleic acid, poly N-vinyl pyrrolidone etc.The method that adopts can reduce three kinds: 1) carbon black absorbs the high molecular free radical grafting; 2) trigger monomer graft polymerization from the carbon blacksurface; 3) active black and high molecular polymer reaction with active end group.In these three kinds of methods, first method technology is simple, but percentage of grafting is not high; Second method percentage of grafting height, but initiating group to be introduced the carbon black pre-treatment that carbon blacksurface needs multistep, make product cost too high; The third method also exists carbon black and polymkeric substance problem of pretreatment, requires carbon blacksurface that active function groups is arranged and the polymkeric substance polymer will have active end group such as hydroxyl or amido.Chinese invention patent (CN1408778) has been introduced a kind of manufacture method of graft carbon black preferably of disperseing in water-based system, but it still exists and will carry out pre-treatment to carbon black.
Summary of the invention
The purpose of this invention is to provide a kind of sulfonic group macromolecular grafted carbon black and preparation method of containing, this graft carbon black has good dispersiveness in water-based system; Its preparation method technology is simple, and is with low cost.
The present invention is achieved by the following technical solutions, a kind of sulfonic group macromolecular grafted carbon black that contains, and its structural representation is as follows:
Wherein CB represents carbon black particle,
Represent in the macromolecular grafted chain, R is CH
2Or CONHC (CH
3)
2CH
2
The above-mentioned preparation method who contains the sulfonic group macromolecular grafted carbon black, it is characterized in that comprising following process: with sodium allylsulfonate (SAS) or 2-acrylamido-2-methyl propane sulfonic acid (AMPS) for containing the sulfonic group monomer, with acrylic or methacrylic acid is vinyl monomer, press the mass ratio 0.1～1: 1 of sulfonic group monomer and vinyl monomer, and press carbon black mass and total monomer quality than 1: 0.1～5, monomer and carbon black are added in the entry, water and monomeric mass ratio are 3～15: 1, and adding and monomer mass ratio are 0.5～5: 100 initiator ammonium persulfate, with the monomer mass ratio be 1: 5～20 Virahol, in the pH value is 1.0～7.0 15～70 ℃ of temperature reactions after 0.5～4 hour down in ultrasonic field or under agitation, use the acetone precipitation polymkeric substance, water promptly gets after the extracting in extractor and contains the sulfonic group macromolecular grafted carbon black.
The invention has the advantages that will contain sulfonic high molecular polymer is grafted on the carbon black, because sulfonic wetting ability and the ionization of sulfonic group in water, the graft carbon black electrostatic double layer is strengthened, electrostatic repulsion strengthens, the grafting polymer chain rigidity strengthens, sterically hindered increasing, graft carbon black can well be disperseed in water under the not high situation of percentage of grafting.
Description of drawings
Fig. 1 contains sulfonic group macromolecular grafted carbon black and not graft carbon black and grafted polyacrylic acid carbon black dispersed comparison diagram in water for the present invention.
Among the figure: curve 1 is the transmittance curve over time of not graft carbon black;
Curve 2 for grafting polyacrylic acid sooty transmittance curve over time;
Curve 3 is the transmittance curve over time of embodiment 1 graft carbon black;
Curve 4 is the transmittance curve over time of embodiment 2 graft carbon blacks;
Curve 5 is the transmittance curve over time of embodiment 3 graft carbon blacks;
Curve 6 is the transmittance curve over time of embodiment 4 graft carbon blacks.
Embodiment
Embodiment 1
To have agitator, thermometer, and in the there-necked flask of logical nitrogen, add carbon black (JE-2105, middle rubber Ma'an Mountain joint stock company limited) 1 gram, vinylformic acid 4 grams, sodium allylsulfonate 0.8 gram, ammonium persulphate 0.1 gram, Virahol 0.5 gram, deionized water mixes stirring for 16 milliliters, and it is 3.5 that hydro-oxidation sodium is regulated the pH value, and logical nitrogen is after half an hour, put into ultrasonic field 15 ℃ of following initiation reactions of temperature 2 hours, promptly get and contain sulfonic group macromolecular grafted carbon black dispersion liquid, add excessive propanone macromolecular grafted carbon black is separated from solution, must contain the sulfonic group macromolecular grafted carbon black after the water extracting.
Embodiment 2
To have agitator, thermometer, and in the there-necked flask of logical nitrogen, add carbon black (JE-2105, middle rubber Ma'an Mountain joint stock company limited) 1 gram, vinylformic acid 0.5 gram, 2-acrylamido-2-methyl propane sulfonic acid 0.2 gram, ammonium persulphate 0.03 gram, Virahol 0.1 gram, deionized water mixes stirring for 16 milliliters, and it is 6.0 that hydro-oxidation sodium is regulated the pH value, and logical nitrogen is after half an hour, put into ultrasonic field 20 ℃ of following initiation reactions of temperature 2 hours, promptly get and contain sulfonic group graft carbon black dispersion liquid, add excessive propanone macromolecular grafted carbon black is separated from solution, must contain sulfonic group grafting graft carbon black after the water extracting.
Embodiment 3
To embodiment 1 usefulness methacrylic acid substitution vinylformic acid, under agitation be warmed up to 60 ℃ replace ultrasonic outside, other condition is identical with embodiment 1.
Embodiment 4
To embodiment 2 usefulness methacrylic acid substitution vinylformic acid, under agitation be warmed up to 60 ℃ replace ultrasonic outside, other condition is identical with embodiment 2.
Dispersed contrast experiment
Get above four routine carbon blacks and not graft carbon black and grafting polyacrylic acid carbon black (percentage of grafting 10%) each 0.04 restrain in centrifuge tube, add deionized water 15ml respectively, putting into ultrasonic field disperseed 30 minutes, put into whizzer then, the centrifugal fixed time under 3000 rev/mins condition, accurately get upper strata liquid 0.5ml, be diluted to 25ml, survey transmittance with 722S type spectrophotometer at the 510nm wavelength, transmittance is big more, illustrates that dispersiveness is poor more.The dispersiveness of four kinds of graft carbon blacks in water as shown in Figure 1.As can be seen from Figure, the dispersiveness of sulfonic group macromolecular grafted carbon black that contains of the present invention is apparently higher than the dispersiveness of other carbon black in water.
Claims (2)
1, a kind of sulfonic group macromolecular grafted carbon black that contains, its structural representation is as follows:
Wherein CB represents carbon black particle,
Represent in the macromolecular grafted chain, R is CH
2Or CONHC (CH
3)
2CH
2
2, a kind of described method that contains the sulfonic group macromolecular grafted carbon black of claim 1 for preparing, it is characterized in that comprising following process: with sodium allylsulfonate or 2-acrylamido-2-methyl propane sulfonic acid for containing the sulfonic group monomer, with acrylic or methacrylic acid is vinyl monomer, press the mass ratio 0.1～1: 1 of sulfonic group monomer and vinyl monomer, and press carbon black mass and total monomer quality than 1: 0.1～5, monomer and carbon black are added in the entry, water and monomeric mass ratio are 3～15: 1, and adding and monomer mass ratio are 0.5～5: 100 initiator ammonium persulfate, with the monomer mass ratio be 1: 5～20 Virahol, in the pH value is 1.0～7.0 in ultrasonic field or 15～70 ℃ of temperature reaction after 0.5～4 hour down under agitation, use the acetone precipitation polymkeric substance, promptly get after the water extracting and contain the sulfonic group macromolecular grafted carbon black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410093855 CN1635008A (en) | 2004-12-07 | 2004-12-07 | Macromolecular grafted carbon black containing sulfonic groups and method for preparation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410093855 CN1635008A (en) | 2004-12-07 | 2004-12-07 | Macromolecular grafted carbon black containing sulfonic groups and method for preparation |
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|---|---|
| CN1635008A true CN1635008A (en) | 2005-07-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348618B (en) * | 2007-10-26 | 2011-03-23 | 江南大学 | Preparation of nano black carbon and use of nano black carbon in fabric dyeing |
| CN102352139A (en) * | 2011-08-31 | 2012-02-15 | 汤阴县奇昌化工有限公司 | Water-soluble superfine special carbon black |
| CN102642946A (en) * | 2012-04-13 | 2012-08-22 | 天津市富特斯科技发展有限公司 | Treatment method of waste water produced in process for producing caprolactam by utilizing toluene method |
| CN114644841A (en) * | 2022-03-27 | 2022-06-21 | 新疆德欣精细化工有限公司 | Carbon black nano material based on gel injection molding and preparation method thereof |
| CN115093519A (en) * | 2022-08-01 | 2022-09-23 | 山西富立桦特种材料股份有限公司 | Production process of high-dispersion water-based carbon black |
-
2004
- 2004-12-07 CN CN 200410093855 patent/CN1635008A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348618B (en) * | 2007-10-26 | 2011-03-23 | 江南大学 | Preparation of nano black carbon and use of nano black carbon in fabric dyeing |
| CN102352139A (en) * | 2011-08-31 | 2012-02-15 | 汤阴县奇昌化工有限公司 | Water-soluble superfine special carbon black |
| CN102352139B (en) * | 2011-08-31 | 2014-02-12 | 汤阴县奇昌化工有限公司 | Water-soluble superfine special carbon black |
| CN102642946A (en) * | 2012-04-13 | 2012-08-22 | 天津市富特斯科技发展有限公司 | Treatment method of waste water produced in process for producing caprolactam by utilizing toluene method |
| CN114644841A (en) * | 2022-03-27 | 2022-06-21 | 新疆德欣精细化工有限公司 | Carbon black nano material based on gel injection molding and preparation method thereof |
| CN115093519A (en) * | 2022-08-01 | 2022-09-23 | 山西富立桦特种材料股份有限公司 | Production process of high-dispersion water-based carbon black |
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