CN103894108A - Block-type water-based polymer dispersant - Google Patents
Block-type water-based polymer dispersant Download PDFInfo
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- CN103894108A CN103894108A CN201210579243.6A CN201210579243A CN103894108A CN 103894108 A CN103894108 A CN 103894108A CN 201210579243 A CN201210579243 A CN 201210579243A CN 103894108 A CN103894108 A CN 103894108A
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- 0 CC(C)C(C)(*)C(*(C1)C1C(C)(C)C)(*=C)C(ON(C)C)=O Chemical compound CC(C)C(C)(*)C(*(C1)C1C(C)(C)C)(*=C)C(ON(C)C)=O 0.000 description 1
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- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
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Abstract
The invention discloses a block-type polymer dispersant; the molecular chain of the dispersing agent comprises a polyacrylic acid block and a polyethylene glycol acrylate block, the polyacrylic acid block is used as a pigment anchoring section, the polyethylene glycol acrylate is used as a solvation chain, and the molecular formula of the dispersing agent is shown in the specification. The block-type polymer dispersant can avoid pigment particle flocculation and precipitation in the storage process, and gives a pigment higher hiding power and tinting strength.
Description
Technical field
The present invention relates to a kind of pigment macromolecule dispersing agent with new structure, be specifically related to a kind of block type aqueous high molecular dispersant.
Background technology
In the industry such as coating, ink, the dispersion of pigment is the important step of manufacturing technology, and pigment forms solid-liquid dispersion in coating, ink, and dispersion is unsettled on thermodynamics, in painting, storage, construction application, even in film forming procedure, all may assemble.In order to obtain stable homogeneous dispersion, often need to use dispersant, traditional little dispersal agent molecule, the poor stability of system, thereby easily desorb causes dispersed pigment particles reassemble or precipitate from particle surface, paint film appearance, hardness and the character such as ageing-resistant are also had to adverse effect.Macromolecule dispersing agent has become dispersant with high efficiency of new generation in recent years, and its remarkable result that is dispersed with to pigment, especially has sizable effect to the aspect such as wetability, stability, and the application performance of pigment is also had to larger improvement.Macromolecule dispersing agent refers to that molecular mass has a surface-active macromolecular compound more than thousands of, belong in essence surfactant, and in the macromolecule dispersing agent of various structure types, block type polymer dispersant is the most effective.
Summary of the invention
Goal of the invention: the present invention, in order to solve the deficiencies in the prior art, provides a kind of block type aqueous high molecular dispersant.
Technical scheme: in order to realize foregoing invention object, the technical solution used in the present invention is:
A kind of block type polymer dispersant, the strand of described dispersant is made up of polyacrylic acid block and polyethylene glycol acrylate block, described polyacrylic acid block is made pigment anchoring section, and polyethylene glycol acrylate is made solvent chain, and the molecular formula of described dispersant is:
As preferably, described X1 is H or CH3; X2 is H or CH3; Y=1～30, m=5～100, n=1～50.
As preferably, described y=4～20.
As preferably, described y=5～15.
As preferably, described m=5～100
As preferably, described m=20～180.
As preferably, described n=5～40.
As preferably, described n=10～20.
Its molecular weight is 1000～20000 grams/mol, and in polymer, content is 50～98%(mass fraction); Polyacrylic acid block is made anchoring section, and its molecular weight is 100～2000 grams/mol, and in polymer, content is 2～50%(mass fraction).
Beneficial effect: compared with prior art, 1) to prepare block type polymer dispersant synthesis technique simple for single electron transfer active free radical polymerization, and product purity is high, of light color, can directly use; 2) block type aqueous high molecular dispersant can quick moistening pigment particles, shortens milling time; 3) and the comparison of random copolymer dispersant, the sterically hindered interaction energy of block type aqueous high molecular dispersant prevents from separating the pigment particles flocculating and reunites, thereby avoid pigment particles flocculation and precipitation in storage process, give pigment and there is more high covering power and tinctorial strength.
The specific embodiment
The present invention will be described in detail below.
Embodiment 1
A kind of block type polymer dispersant, strand is made up of polyacrylic acid block and polyethylene glycol acrylate block, and polyacrylic acid block is made pigment anchoring section, and polyethylene glycol acrylate is made solvent chain, and the molecular formula of dispersant is:
Wherein, X1 is H or CH3; X2 is H or CH3; Y=1, m=5, n=1, the molecular weight of block type polymer dispersant is 1000 grams/mol, in polymer, content is 50%(mass fraction); Polyacrylic acid block is made anchoring section, and its molecular weight is 100 grams/mol, and in polymer, content is 2%(mass fraction).
Embodiment 2
A kind of block type polymer dispersant, strand is made up of polyacrylic acid block and polyethylene glycol acrylate block, and polyacrylic acid block is made pigment anchoring section, and polyethylene glycol acrylate is made solvent chain, and the molecular formula of dispersant is:
Wherein, X1 is H or CH3; X2 is H or CH3; Y=4, m=20, n=20, the molecular weight of block type polymer dispersant is 20000 grams/mol, in polymer, content is 98%(mass fraction); Polyacrylic acid block is made anchoring section, and its molecular weight is 2000 grams/mol, and in polymer, content is 50%(mass fraction).
Embodiment 3:
A kind of block type polymer dispersant, strand is made up of polyacrylic acid block and polyethylene glycol acrylate block, and polyacrylic acid block is made pigment anchoring section, and polyethylene glycol acrylate is made solvent chain, and the molecular formula of dispersant is:
Wherein, X1 is H or CH3; X2 is H or CH3; Y=20, m=50, n=20, the molecular weight of block type polymer dispersant is 20000 grams/mol, in polymer, content is 98%(mass fraction); Polyacrylic acid block is made anchoring section, and its molecular weight is 2000 grams/mol, and in polymer, content is 50%(mass fraction).
Embodiment 4
A kind of block type polymer dispersant, strand is made up of polyacrylic acid block and polyethylene glycol acrylate block, and polyacrylic acid block is made pigment anchoring section, and polyethylene glycol acrylate is made solvent chain, and the molecular formula of dispersant is:
Wherein, X1 is H or CH3; X2 is H or CH3; Y=20, m=120, n=40, the molecular weight of block type polymer dispersant is 5000 grams/mol, in polymer, content is 60%(mass fraction); Polyacrylic acid block is made anchoring section, and its molecular weight is 1000 grams/mol, and in polymer, content is 25%(mass fraction).
Embodiment 5:
A kind of block type polymer dispersant, strand is made up of polyacrylic acid block and polyethylene glycol acrylate block, and polyacrylic acid block is made pigment anchoring section, and polyethylene glycol acrylate is made solvent chain, and the molecular formula of dispersant is:
Wherein, X1 is H or CH3; X2 is H or CH3; Y=30, m=180, n=10, the molecular weight of block type polymer dispersant is 2500 grams/mol, in polymer, content is 60%(mass fraction); Polyacrylic acid block is made anchoring section, and its molecular weight is 500 grams/mol, and in polymer, content is 30%(mass fraction).
Claims (9)
1. a block type polymer dispersant, it is characterized in that: the strand of described dispersant is made up of polyacrylic acid block and polyethylene glycol acrylate block, described polyacrylic acid block is made pigment anchoring section, polyethylene glycol acrylate is made solvent chain, and the molecular formula of described dispersant is:
2. block type polymer dispersant as claimed in claim 1, is characterized in that: described X1 is H or CH3; X2 is H or CH3; Y=1～30, m=5～100, n=1～50.
3. block type polymer dispersant as claimed in claim 2, is characterized in that: described y=4～20.
4. block type polymer dispersant as claimed in claim 3, is characterized in that: described y=5～15.
5. block type polymer dispersant as claimed in claim 2, is characterized in that: described m=20～180.
6. block type polymer dispersant as claimed in claim 5, is characterized in that: described m=50～120.
7. block type polymer dispersant as claimed in claim 2, is characterized in that: described n=5～40.
8. block type polymer dispersant as claimed in claim 7, is characterized in that: described n=10～20.
9. block type polymer dispersant as claimed in claim 1, is characterized in that: its molecular weight is 1000～20000 grams/mol, and in polymer, content is 50～98%(mass fraction); Polyacrylic acid block is made anchoring section, and its molecular weight is 100～2000 grams/mol, and in polymer, content is 2～50%(mass fraction).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210579243.6A CN103894108B (en) | 2012-12-28 | 2012-12-28 | Block type aqueous high molecular dispersant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210579243.6A CN103894108B (en) | 2012-12-28 | 2012-12-28 | Block type aqueous high molecular dispersant |
Publications (2)
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| CN103894108A true CN103894108A (en) | 2014-07-02 |
| CN103894108B CN103894108B (en) | 2016-04-13 |
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| CN201210579243.6A Active CN103894108B (en) | 2012-12-28 | 2012-12-28 | Block type aqueous high molecular dispersant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104311761A (en) * | 2014-10-13 | 2015-01-28 | 南京大学 | Comb-type polyether block polyacrylic copolymer and preparation method thereof |
| CN105345013A (en) * | 2015-11-10 | 2016-02-24 | 南京瑞盈环保科技有限公司 | Manufacturing method for flaky silver powder with high flake rate and narrow particle size distribution |
| CN105860811A (en) * | 2016-06-22 | 2016-08-17 | 安徽汇利涂料科技有限公司 | Waterborne polyurethane paint and method for preparing same |
| CN110165215A (en) * | 2018-02-07 | 2019-08-23 | 重庆消烦多新材料有限公司 | A kind of lithium battery positive and negative anodes dispersing agent and preparation method thereof |
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| CN1784263A (en) * | 2003-03-03 | 2006-06-07 | 克雷.瓦利有限公司 | Use of a polymer dispersant as a fluidising agent for hydraulic binder compositions and preparation method thereof |
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| CN87102438A (en) * | 1986-06-27 | 1988-01-06 | 川崎重工业株式会社 | Carbon solid-aqueous slurry is with dispersion agent and cooperated the carbon solid-water slurry composition of this dispersion agent |
| CN1077718A (en) * | 1992-04-21 | 1993-10-27 | 帝国化学工业公司 | Multipolymer |
| US5548049A (en) * | 1992-07-03 | 1996-08-20 | Chemishe Fabrik Stockhausen Gmbh | Copolymers of allyliminodiacetic acid with unsaturated carboxylic acids and their use as complexing agents, peroxide stabilizers, builders in washing and cleaning products and dispersing agents |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104311761A (en) * | 2014-10-13 | 2015-01-28 | 南京大学 | Comb-type polyether block polyacrylic copolymer and preparation method thereof |
| CN105345013A (en) * | 2015-11-10 | 2016-02-24 | 南京瑞盈环保科技有限公司 | Manufacturing method for flaky silver powder with high flake rate and narrow particle size distribution |
| CN105345013B (en) * | 2015-11-10 | 2017-07-07 | 南京瑞盈环保科技有限公司 | A kind of preparation method of the narrow flake silver powder of sheet rate particle diameter distribution high |
| CN105860811A (en) * | 2016-06-22 | 2016-08-17 | 安徽汇利涂料科技有限公司 | Waterborne polyurethane paint and method for preparing same |
| CN110165215A (en) * | 2018-02-07 | 2019-08-23 | 重庆消烦多新材料有限公司 | A kind of lithium battery positive and negative anodes dispersing agent and preparation method thereof |
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| Publication number | Publication date |
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| CN103894108B (en) | 2016-04-13 |
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