CN105295502A - Dispersant for waterborne paint - Google Patents
Dispersant for waterborne paint Download PDFInfo
- Publication number
- CN105295502A CN105295502A CN201510773263.0A CN201510773263A CN105295502A CN 105295502 A CN105295502 A CN 105295502A CN 201510773263 A CN201510773263 A CN 201510773263A CN 105295502 A CN105295502 A CN 105295502A
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- CN
- China
- Prior art keywords
- parts
- initiator
- hour
- add
- dispersant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003973 paint Substances 0.000 title abstract description 5
- 239000002270 dispersing agent Substances 0.000 title abstract 6
- 239000006185 dispersion Substances 0.000 claims abstract description 28
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003999 initiator Substances 0.000 claims abstract description 19
- 239000003960 organic solvent Substances 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000006229 carbon black Substances 0.000 claims abstract description 9
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 claims abstract description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 7
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 27
- 238000000576 coating method Methods 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 230000003472 neutralizing effect Effects 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 6
- HCPOCMMGKBZWSJ-UHFFFAOYSA-N ethyl 3-hydrazinyl-3-oxopropanoate Chemical compound CCOC(=O)CC(=O)NN HCPOCMMGKBZWSJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000004160 Ammonium persulphate Substances 0.000 claims description 3
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical group [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 3
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000000049 pigment Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 4
- 238000009736 wetting Methods 0.000 abstract description 4
- 239000007791 liquid phase Substances 0.000 abstract description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 abstract 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 239000001294 propane Substances 0.000 abstract 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 abstract 1
- 239000008187 granular material Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007970 homogeneous dispersion Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention discloses a dispersant for a waterborne paint. The dispersant is prepared from the following components: acrylic acid, methyl methacrylate, white carbon black, glycol, an organic solvent, n-amyl alcohol, propane diacid, an initiator, sodium hydrosulphite and a neutralizer. The dispersant provided by the invention can reduce surface tension of the waterborne paint, improves wetting effect on pigment particles, allows the pigment particles to be stably dispersed in a liquid phase, can rapidly and firmly bond with surface groups of the paint and enables the pigment particles to stably suspend in a hydrosolvent so as to allow pigment to be well dispersed, thereby achieving optimal dispersion effect; and through addition of white carbon black, the effect and speed of dispersion are improved. During preparation of the dispersant, the initiator is added in multiple steps instead of one step in the prior art, so the molecular weight of resultant and product distribution are changed, and the prepared dispersant has good dispersion performance and good capability of tolerating changes of environment temperature.
Description
Technical field
The present invention relates to chemicals field, particularly relate to a kind of water-borne coatings dispersion agent.
Background technology
Dispersion agent is a kind of interfacial agent simultaneously in molecule with lipophilicity and wetting ability two kinds of opposite nature, homogeneous dispersion can be insoluble in the solid particulate of inorganic, the pigment dyestuff of liquid, prevent sedimentation and the cohesion of solid particulate simultaneously.The raising that people require health environment-friendly, Environmental Protective Water-paint becomes the new lover in building decoration field.But the surface tension of water is more much larger than organic solvent, just needs to add the surface tension that some auxiliary agents reduce water, strengthen the wetting action to granules of pigments, make the dispersion that granules of pigments is stable in the liquid phase.But many dispersion agents that existing market produces, dispersion effect is not obvious, and efficiency is low.
Summary of the invention
The object of this invention is to provide a kind of water-borne coatings dispersion agent.
The present invention is achieved through the following technical solutions:
A kind of water-borne coatings dispersion agent, be made up of following composition by weight, 15 parts, vinylformic acid, methyl methacrylate 15 parts, white carbon black 2 parts, ethylene glycol 10 parts, organic solvent 60 parts, Pentyl alcohol 1 part, propanedioic acid 3 parts, initiator 2 parts, S-WAT 4 parts, neutralizing agent 4 parts; It is made up of following making step:
1) add organic solvent in a kettle., be heated to 65-70 DEG C, constant temperature process 1-1.5 hour, then add vinylformic acid, methyl methacrylate, at 6-10Mpa pressure, at 95-100 DEG C, add initiator, reaction 8-9 hour;
2) Pentyl alcohol, propanedioic acid and white carbon black are passed under 55-60 DEG C, 15-18MPa pressure nitrogen and react 40-45 minute;
3) by 1) and 2) middle gained raw material mixing, when being heated to 60 DEG C, add ethylene glycol, when temperature rises to 85 DEG C, add S-WAT, when temperature is elevated to 105 DEG C, stops intensification, react after 1-2 hour, be quickly cooled to 35-40 DEG C, take out material;
4) by 3) in the material that takes out put into colloidal mill grinding after 1 hour, then put into a mixing bowl, stir 1-1.5 minute;
5) by 4) in material add after neutralizing agent, removing organic solvent, stirs after 30 minutes, seals 1 hour, then put into clarifixator homogeneous 45 minutes.
Further, described organic solvent is acetone.
Further, described initiator is ammonium persulphate.
Further, described neutralizing agent is sodium hydroxide.
Further, in described step 1), initiator adds speed is added 0.5 weight part initiator every 1 hour.
The invention has the beneficial effects as follows, compared with prior art:
Dispersion agent of the present invention can reduce the surface tension of water-borne coatings, strengthen the wetting action to granules of pigments, make the dispersion that granules of pigments is stable in the liquid phase, and firmly can be combined rapidly with coating surface group, make pigment particles stable be suspended in water solvent, make pigment obtain preferably dispersion, reach best dispersion effect, by adding modified white carbon black, improve dispersion effect and rate of dispersion; Dispersion agent of the present invention is in making processes, gradation interpolation initiator is changed into by changing disposable interpolation initiator in the past, change the molecular weight of resultant and the distribution of product, make the dispersion agent made not only have good dispersing property, also there is the ability of good resistance to variation of ambient temperature.
Embodiment
A kind of water-borne coatings dispersion agent, be made up of following composition by weight, 15 parts, vinylformic acid, methyl methacrylate 15 parts, white carbon black 2 parts, ethylene glycol 10 parts, organic solvent 60 parts, Pentyl alcohol 1 part, propanedioic acid 3 parts, initiator 2 parts, S-WAT 4 parts, neutralizing agent 4 parts; It is made up of following making step:
1) add organic solvent in a kettle., be heated to 65-70 DEG C, constant temperature process 1-1.5 hour, then add vinylformic acid, methyl methacrylate, at 6-10Mpa pressure, at 95-100 DEG C, add initiator, reaction 8-9 hour;
2) Pentyl alcohol, propanedioic acid and white carbon black are passed under 55-60 DEG C, 15-18MPa pressure nitrogen and react 40-45 minute;
3) by 1) and 2) middle gained raw material mixing, when being heated to 60 DEG C, add ethylene glycol, when temperature rises to 85 DEG C, add S-WAT, when temperature is elevated to 105 DEG C, stops intensification, react after 1-2 hour, be quickly cooled to 35-40 DEG C, take out material;
4) by 3) in the material that takes out put into colloidal mill grinding after 1 hour, then put into a mixing bowl, stir 1-1.5 minute;
5) by 4) in material add after neutralizing agent, removing organic solvent, stirs after 30 minutes, seals 1 hour, then put into clarifixator homogeneous 45 minutes.
Further, described organic solvent is acetone.
Further, described initiator is ammonium persulphate.
Further, described neutralizing agent is sodium hydroxide.
Further, in described step 1), initiator adds speed is added 0.5 weight part initiator every 1 hour.
As pH ≈ 9.0, the dispersion effect of dispersion agent is best.
The coating prepared with dispersion agent of the present invention has the viscosity of 25mPas at 30 DEG C, at room temperature stores 60 days, the viscosity of coating, microcosmic disperse phase, dispersity and settling time performance all comparatively outstanding.
Claims (5)
1. a water-borne coatings dispersion agent, it is characterized in that, be made up of following composition by weight, 15 parts, vinylformic acid, methyl methacrylate 15 parts, white carbon black 2 parts, ethylene glycol 10 parts, organic solvent 60 parts, Pentyl alcohol 1 part, propanedioic acid 3 parts, initiator 2 parts, S-WAT 4 parts, neutralizing agent 4 parts; It is made up of following making step:
1) add organic solvent in a kettle., be heated to 65-70 DEG C, constant temperature process 1-1.5 hour, then add vinylformic acid, methyl methacrylate, at 6-10Mpa pressure, at 95-100 DEG C, add initiator, reaction 8-9 hour;
2) Pentyl alcohol, propanedioic acid and white carbon black are passed under 55-60 DEG C, 15-18MPa pressure nitrogen and react 40-45 minute;
3) by 1) and 2) middle gained raw material mixing, when being heated to 60 DEG C, add ethylene glycol, when temperature rises to 85 DEG C, add S-WAT, when temperature is elevated to 105 DEG C, stops intensification, react after 1-2 hour, be quickly cooled to 35-40 DEG C, take out material;
4) by 3) in the material that takes out put into colloidal mill grinding after 1 hour, then put into a mixing bowl, stir 1-1.5 minute;
5) by 4) in material add after neutralizing agent, removing organic solvent, stirs after 30 minutes, seals 1 hour, then put into clarifixator homogeneous 45 minutes.
2. a kind of water-borne coatings dispersion agent according to claim 1, is characterized in that, described organic solvent is acetone.
3. a kind of water-borne coatings dispersion agent according to claim 1, is characterized in that, described initiator is ammonium persulphate.
4. a kind of water-borne coatings dispersion agent according to claim 1, is characterized in that, described neutralizing agent is sodium hydroxide.
5. a kind of water-borne coatings dispersion agent according to claim 1, is characterized in that, in described step 1), initiator adds speed is added 0.5 weight part initiator every 1 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510773263.0A CN105295502B (en) | 2015-11-13 | 2015-11-13 | Water-based paint dispersant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510773263.0A CN105295502B (en) | 2015-11-13 | 2015-11-13 | Water-based paint dispersant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105295502A true CN105295502A (en) | 2016-02-03 |
| CN105295502B CN105295502B (en) | 2021-03-02 |
Family
ID=55193370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510773263.0A Active CN105295502B (en) | 2015-11-13 | 2015-11-13 | Water-based paint dispersant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105295502B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106916480A (en) * | 2017-01-24 | 2017-07-04 | 安徽华晟涂料有限公司 | A kind of water paint dispersant |
| CN114134733A (en) * | 2021-12-30 | 2022-03-04 | 江苏德旺数码科技有限公司 | Water-based dye ink and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004306022A (en) * | 2003-03-25 | 2004-11-04 | San Nopco Ltd | Dispersion agent for light calcium carbonate |
| US20080306189A1 (en) * | 2007-06-07 | 2008-12-11 | Xerox Corporation | Non-aqueous compositions containing nanosized particles of monoazo laked pigment |
| CN101469148A (en) * | 2007-12-29 | 2009-07-01 | 西北师范大学 | Fluorine-containing polymer dispersant for water paint |
| CN104974587A (en) * | 2015-06-05 | 2015-10-14 | 武汉金弘扬化工科技有限公司 | Gemini-type nonionic high-molecular dispersing agent for water-based system pigment, preparation method and application thereof, and water-based paint |
-
2015
- 2015-11-13 CN CN201510773263.0A patent/CN105295502B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004306022A (en) * | 2003-03-25 | 2004-11-04 | San Nopco Ltd | Dispersion agent for light calcium carbonate |
| US20080306189A1 (en) * | 2007-06-07 | 2008-12-11 | Xerox Corporation | Non-aqueous compositions containing nanosized particles of monoazo laked pigment |
| CN101469148A (en) * | 2007-12-29 | 2009-07-01 | 西北师范大学 | Fluorine-containing polymer dispersant for water paint |
| CN104974587A (en) * | 2015-06-05 | 2015-10-14 | 武汉金弘扬化工科技有限公司 | Gemini-type nonionic high-molecular dispersing agent for water-based system pigment, preparation method and application thereof, and water-based paint |
Non-Patent Citations (3)
| Title |
|---|
| 裴传友等: "《中学化学教学情景素材》", 30 September 2012 * |
| 辛高峰等: "正辛醇改性白炭黑的表面工艺", 《武汉工程大学学报》 * |
| 马立志: "丙烯酸与丙烯酸甲酯共聚型分散剂", <中国优秀博硕士学位论文全文数据库（硕士）工程科技Ⅰ辑> * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106916480A (en) * | 2017-01-24 | 2017-07-04 | 安徽华晟涂料有限公司 | A kind of water paint dispersant |
| CN114134733A (en) * | 2021-12-30 | 2022-03-04 | 江苏德旺数码科技有限公司 | Water-based dye ink and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105295502B (en) | 2021-03-02 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A water-based coating dispersant Granted publication date: 20210302 Pledgee: Jingxian SME Financing Guarantee Co.,Ltd. Pledgor: XUANCHENG TROOYAWN REFINED CHEMICAL INDUSTRY CO.,LTD. Registration number: Y2024980030359 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |