CN104074095A - Rheological modifier - Google Patents
Rheological modifier Download PDFInfo
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- CN104074095A CN104074095A CN201410286952.4A CN201410286952A CN104074095A CN 104074095 A CN104074095 A CN 104074095A CN 201410286952 A CN201410286952 A CN 201410286952A CN 104074095 A CN104074095 A CN 104074095A
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- gelatin
- modifying agent
- rheology modifying
- bactericide
- polyacrylate dispersion
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Abstract
The invention discloses a rheological modifier. The rheological modifier is prepared from the following raw materials: gelatin and/or oxidized gelatin, urea or isourea, ylate emulsion A, ylate emulsion B, a bactericide and water. The rheological modifier can be used for effectively improving the rheological property of a paint, increasing the solid content of the paint, improving the fusion property of an adhesion agent in high-solid-content paint and pigment, reducing the thixotropy of the paint, improving the rheological property, reducing the using amount of the filming agent in the paint, increasing the using amount of calcium carbonate and reducing the cost of the paint.
Description
Technical field
The present invention relates to a kind of rheology modifying agent.
Background technology
Coating is the important component part of coated paper, and the solid content of coating is the key factor that affects coating quality, progress along with paper technology and equipment, to the solid content of coating, require more and more higher, to improve the hiding rare of coating, reduce the vertical migration of water and liquid parts, thereby reduce energy consumption for drying, improve rate of drying, and then improve production capacity.
Along with the raising of coating solid content, be accompanied by the rising of dope viscosity, rheological property declines, cause coating to produce scratch in coating operation, coating weight is difficult to control, and occurs the problems such as coating injustice, coating flaw, and the increase of dope viscosity also can be given and carry operation to make troubles.
For the problems referred to above, work out the rheological property that can effectively improve coating, improve the solid content of coating, amalgamation in enhancement high solids coatings between adhesive (film forming agent) and pigment, the thixotropy of coating is declined, rheological characteristic increases, and the rheology modifying agent of raw material environmental protection has great importance.
Summary of the invention
Technical problem to be solved by this invention is to overcome the shortcoming of above prior art: a kind of raw material natural environmental-protective is provided, can effectively improves the rheological property of coating, improve the solid content of coating, the thixotropy of coating is declined, the rheology modifying agent that rheological characteristic increases.
Technical solution of the present invention is as follows: a kind of rheology modifying agent, its raw materials comprises gelatin and/or oxidized gelatin, urea or isourea.
As preferably, the raw materials of described rheology modifying agent is: gelatin and/or oxidized gelatin, urea or isourea, polyacrylate dispersion A, polyacrylate dispersion B, bactericide, water.
As preferably, described rheology modifying agent is prepared by the raw material of following percentage by weight: gelatin and/or oxidized gelatin 2-20%, urea or isourea 19-36%, polyacrylate dispersion A 0.5-7%, polyacrylate dispersion B 0.5-7%, bactericide 0.01-0.1%, all the other are water.
Described gelatin is a kind of in skin gelatin, bone gelatin, isinglass.
Described oxidized gelatin is made through hydrogen peroxide oxidation by gelatin.
Described oxidized gelatin is prepared through following concrete technology by gelatin: gelatin is added to the water to swelling, the weight ratio of gelatin and water is 1:9, be heated to after 40 ℃ of stirring and dissolving, adding weight is the hydrogen peroxide solution that 1% concentration of gelatin and water gross weight is 30g/L, with the acetum of 100g/L, regulate pH=6 again, at 40 ℃, stir 6 hours, then add sodium sulfite to remove unnecessary hydrogen peroxide.
Described polyacrylate dispersion A is Tao Shi DR-72, and polyacrylate dispersion B is Tao Shi DR-73.
Described bactericide is the K40 bactericide of German Shu Mei Co., Ltd.
The invention has the beneficial effects as follows: the present invention can effectively improve the rheological property of coating, improve the solid content of coating, the amalgamation in enhancement high solids coatings between adhesive (film forming agent) and pigment, declines the thixotropy of coating, and rheological characteristic increases; Can reduce the consumption of film forming agent in coating, increase the consumption of calcium carbonate, thereby can reduce the cost of coating; Can also improve the rate of drying of unit interval coating; Main raw material of the present invention is taken from natural material, three-waste free discharge, and selected raw material is more easily degraded at occurring in nature, and with respect to the environmental protection more of existing rheology modifying agent, production process is safer.
The specific embodiment
With specific embodiment, the present invention is described in further details below, but the present invention is not only confined to following specific embodiment.
Embodiment mono-
By following concrete steps, prepare rheology modifying agent:
1, in the reactor of 2000L, add water 1040kg, start paddle and stir, be heated to 70 ℃;
2, in aforesaid reaction vessel, drop into 500kg urea and 250kg gelatin, until completely dissolved, stop heating, drop into 10kg polyacrylate dispersion A, 30kg polyacrylate dispersion B; After being cooled to 40 ℃, add 1kg bactericide, continue to stir after 3-5 minute discharging.
Wherein said polyacrylate dispersion A is the DR-72 that Dow Chemical produces.
Described polyacrylate dispersion B is the DR-73 that Dow Chemical produces.
Described bactericide is the K40 bactericide that German Shu Mei Co., Ltd (Schulke & Mayr) produces.
Above raw material all can be by commercially available.
Embodiment bis-
By following concrete steps, prepare rheology modifying agent:
1, in the reactor of 2000L, add 10% oxidized gelatin 1500kg, start paddle and stir, be heated to 70 ℃;
2, in aforesaid reaction vessel, drop into 450kg urea, until completely dissolved, stop heating, drop into Tao Shi DR-72, the Tao Shi DR-73 that 30kg Dow Chemical produces that 10kg Dow Chemical produces; Be cooled to the K40 bactericide that adds 1kg Germany Shu Mei Co., Ltd (Schulke & Mayr) to produce after 40 ℃, continue to stir after 5-6 minute discharging.
Described 10% oxidized gelatin can be prepared by following material rate: by 100g gelatin swelling in 900ml water, be heated to 40 ℃ of stirring and dissolving, the hydrogen peroxide solution 10ml that adds concentration 30g/L, with the acetum of 100g/L, regulate pH=6, at 40 ℃, stir 6 hours, then add sodium sulfite to remove unnecessary hydrogen peroxide.
Above raw material all can be by commercially available.
Embodiment tri-
By following concrete steps, prepare rheology modifying agent:
1, in the reactor of 2000L, add water 900kg, open reactor paddle and stir, be heated to 70 ℃;
2, in aforesaid reaction vessel, drop into 550kg urea and 300kg isinglass, until completely dissolved, stop heating, drop into successively Tao Shi DR-72, the Tao Shi DR-73 that 5kg Dow Chemical produces that 5kg Dow Chemical produces; Be cooled to after 40 ℃ and add the K40 bactericide that 1kg Germany Shu Mei Co., Ltd (Schulke & Mayr) produces, continue to stir after 5-6 minute discharging.
Above raw material all can be by commercially available.
Embodiment tetra-
By following concrete steps, prepare rheology modifying agent:
1, in the reactor of 2000L, add water 900kg, open reactor paddle and stir, be heated to 70 ℃;
2, in aforesaid reaction vessel, drop into 500kg isourea and 350kg bone gelatin, until completely dissolved, stop heating, drop into successively Tao Shi DR-72, the Tao Shi DR-73 that 5kg Dow Chemical produces that 5kg Dow Chemical produces; Be cooled to after 40 ℃ and add the K40 bactericide that 1kg Germany Shu Mei Co., Ltd (Schulke & Mayr) produces, continue to stir after 5-6 minute discharging.
Above raw material all can be by commercially available.
Embodiment five
By following concrete steps, prepare rheology modifying agent:
1, in the reactor of 2000L, add water 1000kg, open reactor paddle and stir, be heated to 70 ℃;
2, in aforesaid reaction vessel, drop into 500kg isourea and 300kg bone gelatin, until completely dissolved, stop heating, drop into successively Tao Shi DR-72, the Tao Shi DR-73 that 6kg Dow Chemical produces that 6kg Dow Chemical produces; Be cooled to after 40 ℃ and add the K40 bactericide that 1kg Germany Shu Mei Co., Ltd (Schulke & Mayr) produces, continue to stir after 5 minutes discharging.
Above raw material all can be by commercially available.
Embodiment six
By following concrete steps, prepare rheology modifying agent:
1, in the reactor of 2000L, add water 950kg, open reactor paddle and stir, be heated to 70 ℃;
2, in aforesaid reaction vessel, drop into 500kg urea and 300kg skin gelatin, until completely dissolved, stop heating, drop into successively Tao Shi DR-72, the Tao Shi DR-73 that 5kg Dow Chemical produces that 5kg Dow Chemical produces; Be cooled to after 40 ℃ and add the K40 bactericide that 1kg Germany Shu Mei Co., Ltd (Schulke & Mayr) produces, continue to stir after 5-6 minute discharging.
Above raw material all can be by commercially available.
Below the rheology modifying agent of preparation in embodiment six is tested for coated paper coatings:
From above-mentioned test, the present invention can effectively improve the rheological property of coating, improves the solid content of coating, reduces drying load, can greatly reduce costs.
Claims (8)
1. a rheology modifying agent, is characterized in that: its raw materials comprises gelatin and/or oxidized gelatin, urea or isourea.
2. rheology modifying agent according to claim 1, is characterized in that: the raw materials of described rheology modifying agent is: gelatin and/or oxidized gelatin, urea or isourea, polyacrylate dispersion A, polyacrylate dispersion B, bactericide, water.
3. rheology modifying agent according to claim 2, it is characterized in that: described rheology modifying agent is prepared by the raw material of following percentage by weight: gelatin and/or oxidized gelatin 2-20%, urea or isourea 19-36%, polyacrylate dispersion A 0.5-7%, polyacrylate dispersion B 0.5-7%, bactericide 0.01-0.1%, all the other are water.
4. according to the rheology modifying agent described in claim 1 or 2 or 3, it is characterized in that: described gelatin is a kind of in skin gelatin, bone gelatin, isinglass.
5. according to the rheology modifying agent described in claim 1 or 2 or 3, it is characterized in that: described oxidized gelatin is made through hydrogen peroxide oxidation by gelatin.
6. rheology modifying agent according to claim 5, it is characterized in that: described oxidized gelatin is prepared through following concrete technology by gelatin: gelatin is added to the water to swelling, the weight ratio of gelatin and water is 1:9, be heated to after 40 ℃ of stirring and dissolving, adding weight is the hydrogen peroxide solution that 1% concentration of gelatin and water gross weight is 30g/L, with the acetum of 100g/L, regulate pH=6 again, at 40 ℃, stir 6 hours, then add sodium sulfite to remove unnecessary hydrogen peroxide.
7. according to the rheology modifying agent described in claim 2 or 3, it is characterized in that: described polyacrylate dispersion A is Tao Shi DR-72, polyacrylate dispersion B is Tao Shi DR-73.
8. according to the rheology modifying agent described in claim 2 or 3, it is characterized in that: described bactericide is the K40 bactericide of German Shu Mei Co., Ltd.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410286952.4A CN104074095A (en) | 2014-06-25 | 2014-06-25 | Rheological modifier |
| CN201510315234.XA CN105002775B (en) | 2014-06-25 | 2015-06-10 | Rheology modifying agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410286952.4A CN104074095A (en) | 2014-06-25 | 2014-06-25 | Rheological modifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104074095A true CN104074095A (en) | 2014-10-01 |
Family
ID=51595673
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410286952.4A Pending CN104074095A (en) | 2014-06-25 | 2014-06-25 | Rheological modifier |
| CN201510315234.XA Active CN105002775B (en) | 2014-06-25 | 2015-06-10 | Rheology modifying agent |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510315234.XA Active CN105002775B (en) | 2014-06-25 | 2015-06-10 | Rheology modifying agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104074095A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115887732B (en) * | 2022-12-23 | 2024-03-22 | 稳得希林(沈阳)生物科技有限公司 | Medical gelatin dressing and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4474860A (en) * | 1983-05-16 | 1984-10-02 | The Dow Chemical Company | High solids latexes for paper coatings |
| US20060121488A1 (en) * | 2003-02-26 | 2006-06-08 | Rothstein Jeffrey D | Glutamate transport modulatory compounds and methods |
| US20080206571A1 (en) * | 2007-02-27 | 2008-08-28 | Berckmans Marc Charles F | Coating compositions |
| FR2958664B1 (en) * | 2010-04-07 | 2012-10-26 | Coatex Sas | USING STYRENE LATEX WITH A SIZE OF 100 NM AS A RHEOLOGICAL AGENT IN PAPER-SLEEP SAUCE, SAUCE AND PROCESS FOR OBTAINING SAME |
-
2014
- 2014-06-25 CN CN201410286952.4A patent/CN104074095A/en active Pending
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2015
- 2015-06-10 CN CN201510315234.XA patent/CN105002775B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105002775B (en) | 2017-11-17 |
| CN105002775A (en) | 2015-10-28 |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141001 |