CN115073667B - Modified starch dispersing agent and preparation method and application thereof - Google Patents
Modified starch dispersing agent and preparation method and application thereof Download PDFInfo
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- CN115073667B CN115073667B CN202110259226.3A CN202110259226A CN115073667B CN 115073667 B CN115073667 B CN 115073667B CN 202110259226 A CN202110259226 A CN 202110259226A CN 115073667 B CN115073667 B CN 115073667B
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- modified starch
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- dispersing agent
- gelatinization
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- 239000002270 dispersing agent Substances 0.000 title claims abstract description 54
- 229920000881 Modified starch Polymers 0.000 title claims abstract description 38
- 239000004368 Modified starch Substances 0.000 title claims abstract description 38
- 235000019426 modified starch Nutrition 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000003973 paint Substances 0.000 claims abstract description 41
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003999 initiator Substances 0.000 claims abstract description 17
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 15
- 125000005336 allyloxy group Chemical group 0.000 claims abstract description 15
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 15
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 15
- MNCGMVDMOKPCSQ-UHFFFAOYSA-M sodium;2-phenylethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=CC1=CC=CC=C1 MNCGMVDMOKPCSQ-UHFFFAOYSA-M 0.000 claims abstract description 13
- 229920002261 Corn starch Polymers 0.000 claims abstract description 11
- 239000008120 corn starch Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- 239000011261 inert gas Substances 0.000 claims abstract description 3
- 239000000758 substrate Substances 0.000 claims description 9
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 8
- 238000001291 vacuum drying Methods 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- HKVFISRIUUGTIB-UHFFFAOYSA-O azanium;cerium;nitrate Chemical compound [NH4+].[Ce].[O-][N+]([O-])=O HKVFISRIUUGTIB-UHFFFAOYSA-O 0.000 claims description 2
- 238000004043 dyeing Methods 0.000 claims description 2
- XFTALRAZSCGSKN-UHFFFAOYSA-M sodium;4-ethenylbenzenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=C(C=C)C=C1 XFTALRAZSCGSKN-UHFFFAOYSA-M 0.000 claims 2
- 239000002245 particle Substances 0.000 abstract description 11
- 239000000049 pigment Substances 0.000 abstract description 9
- 239000011248 coating agent Substances 0.000 abstract description 8
- 238000000576 coating method Methods 0.000 abstract description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract description 6
- 238000004873 anchoring Methods 0.000 abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 4
- 125000002843 carboxylic acid group Chemical group 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 description 10
- 239000000843 powder Substances 0.000 description 10
- 239000007795 chemical reaction product Substances 0.000 description 5
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 5
- 230000035484 reaction time Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 229920002472 Starch Polymers 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
Classifications
-
- 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
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of dispersants, and discloses a modified starch dispersant, a preparation method and application thereof. The dispersing agent is prepared by the following method: uniformly mixing corn starch and water, heating for gelatinization, adding an initiator under the protection of nitrogen or inert gas, adding sodium styrene sulfonate, allyloxy polyoxyethylene ether and acrylic acid for a period of time, reacting, drying the obtained product to constant weight after the reaction is finished, and crushing and grinding to obtain the coating dispersing agent. The modified starch dispersant has two anchoring groups of styrene and carboxylic acid groups, so that pigment particles in the paint can be effectively anchored, and the pigment particles in the paint can be effectively dispersed due to electrostatic repulsion and steric hindrance of an electric double layer. The paint dispersing agent has the advantages of simple and efficient production method, capability of dispersing pigment particles in paint with high efficiency, reducing the viscosity of the paint, enhancing the fluidity of the paint and improving the application performance of the paint.
Description
Technical Field
The invention belongs to the technical field of dispersants, and particularly relates to a modified starch dispersant, a preparation method and application thereof.
Background
A dispersant is a surfactant that has both lipophilic and hydrophilic opposite properties within the molecule. In the process of preparing the paint, pigment particles are required to be added into the paint again in order to make the paint have different colors, however, under the condition that a dispersing agent is not added, the paint is extremely easy to generate phenomena of sinking, caking, layering, flocculation and the like. In order to stabilize the paint for transportation and construction, a dispersant needs to be added to the paint. The good dispersant can stabilize the coating system, has good fluidity and smaller viscosity, and the dispersant is used in a small amount. Starch is a natural abundant resource which is cheap, renewable and pollution-free, and has a hydrophilic long chain, so that the starch can be used as a dispersant substrate, however, reports on the starch are rare. The existing paint has higher viscosity, is easy to generate the phenomena of sedimentation, flocculation and the like in the storage, transportation and construction engineering, and is unfavorable for transportation and construction.
Disclosure of Invention
In order to overcome the disadvantages and shortcomings of the prior art, a primary object of the present invention is to provide a modified starch dispersant.
The invention also aims to provide a preparation method of the modified starch dispersing agent.
It is still another object of the present invention to provide the use of the modified starch dispersant described above.
The aim of the invention is achieved by the following scheme:
the modified starch dispersing agent is prepared from the following raw materials in parts by weight:
preferably, the modified starch dispersing agent is prepared from the following raw materials in parts by weight:
the initiator is at least one of hydrogen peroxide, ammonium cerium nitrate, potassium persulfate and the like, and preferably potassium persulfate.
The preparation method of the modified starch dispersing agent comprises the following steps:
uniformly mixing corn starch and water, heating for gelatinization, adding an initiator under the protection of nitrogen or inert gas, adding a reaction substrate to react sodium styrenesulfonate, allyloxy polyoxyethylene ether and acrylic acid after a period of time, and drying the obtained product to constant weight after the reaction is finished to obtain the modified starch dispersing agent.
The heating gelatinization means gelatinization for 0.5-2h at 60-100deg.C, preferably gelatinization for 1h at 80deg.C;
the period of time is 10-60min, preferably 20min;
the reaction is carried out at 50-100 ℃ for 2-24h, preferably at 90 ℃ for 6h;
the drying is preferably performed in a vacuum drying oven at 60 ℃.
The modified starch dispersing agent is mainly applied to the fields of papermaking, paint, printing ink, printing and dyeing and the like.
Compared with the prior art, the invention has the following advantages:
the modified starch dispersing agent for the paint has the advantages that the modified starch dispersing agent is provided with the lipophilic chain segment and the hydrophilic chain segment, the hydrophilic chain segment can be stretched into water and dissolved in the water, the lipophilic chain segment can be gathered on the surfaces of pigment particles, styrene and carboxylic acid groups can be used as anchoring groups of the pigment particles in the paint, the multi-anchoring groups can enable the modified starch dispersing agent to be effectively anchored on the surfaces of solid particles or encapsulate the solid particles, and the synergistic effect of electrostatic repulsion and steric hindrance can enable the solid particles to be stably dispersed in the paint, so that the modified starch dispersing agent can well disperse the paint, and the paint has good stability.
The main substrate used in the invention is corn starch, and has the advantages of natural and renewable property, no pollution, easy degradation, low cost and the like; the synthesis method using one pot is simple and easy to operate; styrene and carboxylic acid groups are used as anchoring groups of the dispersing agent, and the anchoring effect of the dispersing agent is strong on various solid particles under different coating environments due to the advantages of multiple anchoring groups, and meanwhile, the synergistic effect of electrostatic repulsion and steric hindrance of an electric double layer is obvious in dispersing effect, so that the stability of a coating system is good.
Drawings
FIG. 1 is a schematic diagram of the principle of action of a modified starch dispersant.
Fig. 2 is a state diagram after the preparation of paint a, paint B, and paint C, where (a) represents paint a, (B) represents paint B, and (C) represents paint C.
Fig. 3 is a state diagram of paint a, paint B, and paint C after one month of rest, where (a) represents paint a, (B) represents paint B, and (C) represents paint C.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
Example 1
Based on the mass of corn starch, the weight of sodium styrene sulfonate is 40wt%, the weight of allyloxy polyoxyethylene ether (1000 molecular weight) is 80wt%, the weight of acrylic acid is 40wt%, the weight of initiator (potassium persulfate) is 1wt%, the weight of water is 2000wt%, the gelatinization temperature is 80 ℃, the gelatinization time is 1h, the reaction substrate is added to react sodium styrene sulfonate, allyloxy polyoxyethylene ether and acrylic acid after 10min of initiator addition, the reaction temperature is 90 ℃, the reaction time is 2h, the reaction product is taken out after the reaction is completed, and the vacuum drying is carried out at 60 ℃ until the weight is constant, thus obtaining the modified starch dispersing agent.
Example 2
Based on the mass of corn starch, the weight of sodium styrene sulfonate is 60wt%, the weight of allyloxy polyoxyethylene ether (1000 molecular weight) is 60wt%, the weight of acrylic acid is 60wt%, the weight of initiator (potassium persulfate) is 1wt%, the weight of water is 2000wt%, the gelatinization temperature is 80 ℃, the gelatinization time is 1h, the reaction substrate is added after the initiator is added for 20min to react sodium styrene sulfonate, allyloxy polyoxyethylene ether and acrylic acid, the reaction temperature is 90 ℃, the reaction time is 12h, the reaction product is taken out after the reaction is completed, and the vacuum drying is carried out at 60 ℃ until the weight is constant, thus obtaining the modified starch dispersing agent.
Example 3
Based on the mass of corn starch, the weight of sodium styrene sulfonate is 40%, the weight of allyloxy polyoxyethylene ether (1000 molecular weight) is 60%, the weight of acrylic acid is 60%, the weight of initiator (potassium persulfate) is 2%, the weight of water is 2000%, the gelatinization temperature is 80 ℃, the gelatinization time is 1h, the reaction substrate is added to react sodium styrene sulfonate, allyloxy polyoxyethylene ether and acrylic acid after 20min after the initiator is added, the reaction temperature is 90 ℃, the reaction time is 6h, the reaction product is taken out after the reaction is completed, and the vacuum drying is carried out at 60 ℃ until the weight is constant, thus obtaining the modified starch dispersing agent.
Example 4
Based on the mass of corn starch, the weight of sodium styrene sulfonate is 40wt%, the weight of allyloxy polyoxyethylene ether (1000 molecular weight) is 40wt%, the weight of acrylic acid is 80wt%, the weight of initiator (potassium persulfate) is 2wt%, the weight of water is 2000wt%, the gelatinization temperature is 80 ℃, the gelatinization time is 1h, the reaction substrate is added after the initiator is added for 40min to react sodium styrene sulfonate, allyloxy polyoxyethylene ether and acrylic acid, the reaction temperature is 90 ℃, the reaction time is 18h, the reaction product is taken out after the reaction is completed, and the vacuum drying is carried out at 60 ℃ until the weight is constant, thus obtaining the modified starch dispersing agent.
Example 5
Based on the mass of corn starch, the weight of sodium styrene sulfonate is 60wt%, the weight of allyloxy polyoxyethylene ether (1000 molecular weight) is 40wt%, the weight of acrylic acid is 60wt%, the weight of initiator (potassium persulfate) is 2wt%, the weight of water is 2000wt%, the gelatinization temperature is 80 ℃, the gelatinization time is 1h, the reaction substrate is added to react sodium styrene sulfonate, allyloxy polyoxyethylene ether and acrylic acid after 60min of initiator addition, the reaction temperature is 90 ℃, the reaction time is 24h, the reaction product is taken out after the reaction is completed, and the vacuum drying is carried out at 60 ℃ until the weight is constant, thus obtaining the modified starch dispersing agent.
The modified starch dispersants prepared in examples 1 to 5 were added to the dispersion liquid (the mass ratio of water to powder in the dispersion liquid is 5:1) of each powder (talc, titanium white, barium sulfate, heavy calcium, zinc phosphate, particle diameters are all within 1nm to 5 um) at 0.20% by mass of the powder, respectively, and the viscosity of the resulting coating was as shown in Table 1 below, and as can be seen from the data in Table 1, the modified starch dispersants prepared in examples 1 to 5 had a certain dispersibility to each powder. The powder viscosity was measured as Brookfield viscosity (test temperature 25 ℃ C., unit mPa. S)
TABLE 1 viscosity data for the aqueous dispersions of the powders with 0.20% of the dispersants of examples 1-5
The dispersing agent prepared in the example 3 is added into the aqueous dispersion of talcum powder (the mass ratio of water to talcum powder is 1:1) according to the proportion of 0.2wt% (accounting for the mass percentage of the powder), and the coating A is formed after uniform mixing; the dispersing agent prepared in the example 3 is added into the talcum powder water dispersion liquid (the mass ratio of water to talcum powder is 5:1) according to the proportion of 0.2wt% (accounting for the mass percentage of the powder), and the coating B is formed after uniform mixing; mixing water and talcum powder according to a mass ratio of 5:1 to form an aqueous dispersion, and naming the aqueous dispersion as a coating C; the pictures of the initial states of paint a, paint B, and paint C and the state diagram after one month of standing are shown in fig. 2 and 3, respectively, wherein (a) represents paint a, (B) represents paint B, and (C) represents paint C. As can be seen from fig. 2 and 3, the pigment in the paint added with the modified starch dispersing agent is in a dispersion stable state, and the paint has good dispersion stability, reduced viscosity and good fluidity, and is convenient for storage, transportation and construction; the pigment powder without adding the modified starch dispersant is in a blocky shape when a small amount of water is added, has high viscosity, is in a dispersed state at the beginning after a large amount of water is added, and is precipitated and layered in water due to the dispersion instability of the pigment powder after one month.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (10)
1. The modified starch dispersing agent is characterized by being prepared from the following raw materials in parts by weight:
100 parts of corn starch
Initiator 0.5-3 parts
40-60 parts of sodium p-styrenesulfonate
40-80 parts of allyloxy polyoxyethylene ether
40-80 parts of acrylic acid
1500-2500 parts of water.
2. The modified starch dispersant of claim 1, which is characterized by being prepared from the following raw materials in parts by weight:
100 parts of corn starch
Initiator 2 parts
40 parts of sodium p-styrenesulfonate
60 parts of allyloxy polyoxyethylene ether
Acrylic acid 60 parts
2000 parts of water.
3. The modified starch dispersant of claim 1 or 2 wherein:
the initiator is at least one of hydrogen peroxide, ammonium cerium nitrate and potassium persulfate.
4. A process for the preparation of a modified starch dispersant as claimed in any one of claims 1 to 3, characterised by comprising the steps of:
uniformly mixing corn starch and water, heating for gelatinization, adding an initiator under the protection of inert gas, adding a substrate to react sodium styrene sulfonate, allyloxy polyoxyethylene ether and acrylic acid after a period of time, and drying the obtained product to constant weight after the reaction is finished to obtain the modified starch dispersing agent.
5. The method for preparing the modified starch dispersant according to claim 4, wherein:
the heating gelatinization refers to gelatinization for 0.5-2h at 60-100deg.C.
6. The method for preparing the modified starch dispersant according to claim 4, wherein:
the period of time is 10-60min.
7. The method for preparing the modified starch dispersant according to claim 4, wherein:
the reaction is carried out at 50-100 ℃ for 2-24h.
8. The method for preparing the modified starch dispersant according to claim 4, wherein:
the drying step is to dry in a vacuum drying oven at 60 ℃.
9. The method for preparing the modified starch dispersant according to claim 4, wherein:
the heating gelatinization refers to gelatinization for 1h at 80 ℃;
the period of time is 20min;
the reaction is carried out at 90 ℃ for 6 hours.
10. Use of a modified starch dispersant according to any one of claims 1-3 in the fields of paper, paint, ink, printing and dyeing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110259226.3A CN115073667B (en) | 2021-03-10 | 2021-03-10 | Modified starch dispersing agent and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110259226.3A CN115073667B (en) | 2021-03-10 | 2021-03-10 | Modified starch dispersing agent and preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN115073667A CN115073667A (en) | 2022-09-20 |
| CN115073667B true CN115073667B (en) | 2024-01-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004078807A2 (en) * | 2003-02-28 | 2004-09-16 | Dow Global Technologies Inc. | Starch-based polymers |
| CN1869089A (en) * | 2006-07-03 | 2006-11-29 | 浙江工业大学 | Preparation method of graft starch |
| CN102351995A (en) * | 2011-07-21 | 2012-02-15 | 陕西科技大学 | Starch-based graft copolymer coal water slurry dispersant and preparation method thereof |
| CN109293836A (en) * | 2018-09-11 | 2019-02-01 | 济宁明升新材料有限公司 | A kind of preparation method for the polysaccharose substance modifiers dispersants that performance is controllable |
| CN111662587A (en) * | 2020-05-20 | 2020-09-15 | 中科院广州化学所韶关技术创新与育成中心 | Polymer dispersant for coating and preparation method thereof |
-
2021
- 2021-03-10 CN CN202110259226.3A patent/CN115073667B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004078807A2 (en) * | 2003-02-28 | 2004-09-16 | Dow Global Technologies Inc. | Starch-based polymers |
| CN1869089A (en) * | 2006-07-03 | 2006-11-29 | 浙江工业大学 | Preparation method of graft starch |
| CN102351995A (en) * | 2011-07-21 | 2012-02-15 | 陕西科技大学 | Starch-based graft copolymer coal water slurry dispersant and preparation method thereof |
| CN109293836A (en) * | 2018-09-11 | 2019-02-01 | 济宁明升新材料有限公司 | A kind of preparation method for the polysaccharose substance modifiers dispersants that performance is controllable |
| CN111662587A (en) * | 2020-05-20 | 2020-09-15 | 中科院广州化学所韶关技术创新与育成中心 | Polymer dispersant for coating and preparation method thereof |
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