CN109486271A - A kind of coating organic dispersing agent and preparation method thereof - Google Patents
A kind of coating organic dispersing agent and preparation method thereof Download PDFInfo
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- CN109486271A CN109486271A CN201811056939.4A CN201811056939A CN109486271A CN 109486271 A CN109486271 A CN 109486271A CN 201811056939 A CN201811056939 A CN 201811056939A CN 109486271 A CN109486271 A CN 109486271A
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- Prior art keywords
- parts
- copper
- bath
- hydrogen peroxide
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- 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
- C08F120/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F120/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F120/04—Acids; Metal salts or ammonium salts thereof
- C08F120/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of coating organic dispersing agents, it is prepared by the following ingredients as unit of parts by weight: 144 parts of 99% acrylic acid, 33.2 parts of 30% hydrogen peroxide, 191 parts of 42% liquid alkaline, 11.5 parts of 0.15% copper-bath, 100 parts of deionized water.It will be in copper-bath and deionized water injection synthesising container, start blender, after being warming up to 75~85 DEG C, at the same be added dropwise acrylic acid, hydrogen peroxide and 75% dosage liquid alkaline, three kinds of liquid are controlled to be dripped off in two hours, 60 degree or less are cooled to after being added dropwise immediately, remaining liquid alkaline is added, reacts 2~4 hours under the conditions of 50 DEG C of temperature, after reaction, through 200 mesh nylon net filters, weighing and bagging storage.The present invention is using copper sulphate as chain-transferring agent, using hydrogen peroxide as initiator, neutralized with part and control molecular weight, have many advantages, such as molecular weight it is easy to control, without organic solvent, reaction density height, simple process reaction time be short, low-temp storage is not precipitated crystal.
Description
Technical field:
The present invention relates to a kind of coating organic dispersing agents and preparation method thereof, belong to coating processing technique field.
Background technique:
With the reinforcement of world's environmental consciousness, water paint can save the energy but also environment protection, thus more and more
It is valued by people, traditional coating is mostly organic solvent type.It is known that organic solvent is volatile, evaporate into atmosphere
Organic matter can change the ozone composition of Earth Surface Atmosphere layer, and generate photochemical fog, be atmospheric environment important pollution sources it
One.In the eighties mid-term, US and European various countries have successively promulgated the regulation of the volatilizable organic compound of control, have forced perhaps
The product that more industrial department active developments can substitute.Organic solvent used in coatings industry is to evaporate into having in atmosphere
One of main source of solvent.Develop the concern that environmentally friendly water paint increasingly causes people.
In the chemical industries such as coating, the dispersion of pigment is the important link of coating manufacturing technology.In order to make in coating
Organic and inorganic pigment stable homogeneous dispersion, is commonly used dispersing agent.Dispersing agent is in the storage of coating, coating operation, film
It is formed, the performance of coating etc. important role.Although traditional dispersing agent is shown effectively in aqueous dispersion medium
Stably dispersing effect, but due to they pigment particles surface absorption not very securely, be easy solved from particle surface
Suction is reassembled or is precipitated so as to cause scattered particle, and crystal can be precipitated in when storage, and the long-time stability of system are not good enough
, paint film appearance, hardness and the properties such as ageing-resistant are also adversely affected.China starts late to the research of polymeric dispersant,
Just there is the summary of solvent based polymer dispersing agent to report in the nineties.In recent years, China also develops some waterborne polymerics
Dispersing agent kind, but effect is undesirable, product also non-seriation.
Summary of the invention:
The technical problems to be solved by the present invention are: providing a kind of coating organic dispersing agent and preparation method thereof, the coating is organic
Dispersing agent is conducive to pigment stabilizer dispersion, improves dispersion effect, crystal is not precipitated in low-temp storage, easy to use and reliable.
The present invention is adopted the technical scheme that in order to solve the technical problem:
A kind of coating organic dispersing agent, is prepared by the following ingredients as unit of parts by weight: 144 parts of 99% acrylic acid,
33.2 parts of 30% hydrogen peroxide, 191 parts of 42% liquid alkaline, 11.5 parts of 0.15% copper-bath, 100 parts of deionized water.
The preparation method of coating organic dispersing agent recited above, the specific steps of which are as follows:
A, be equipped with and require each component of concentration: 99% acrylic acid, 30% hydrogen peroxide, 42% liquid alkaline and 0.15% copper sulphate
Solution；
B, the acrylic acid of dosage, hydrogen peroxide, sodium hydroxide solution are claimed to measure through pound, is pumped to and is got ready respectively by vacuum
High-order metering fill in it is stand-by；
C, weigh dosage copper-bath enter it is spare in plastic containers；
D, the deionized water of copper-bath and dosage is injected in synthesising container, starts blender, is warming up to 75~85 DEG C
Afterwards, at the same be added dropwise acrylic acid, hydrogen peroxide and 75% dosage liquid alkaline, three kinds of liquid are controlled to be dripped off in two hours, drop
To guarantee that material is in reflux state during adding；
E, 60 degree are cooled to after being added dropwise immediately hereinafter, being slow added into the liquid alkaline of remaining 25% dosage, temperature control exists
50 DEG C or so, alkali liquor inlet is rinsed with a little deionized water, is injected in synthesising container together, reacts 2~4 small under stirring
When；
F, after reaction, through 200 mesh nylon net filters, weighing and bagging storage.
Described 0.15% copper-bath with Preparation Method it is as follows, by the cupric sulfate pentahydrate of 0.15 Kg, be added to 100
0.15% copper-bath is obtained in the deionized water of Kg, after dissolution.
In the processing technology of coating organic dispersing agent, original process are using isopropanol as chain-transferring agent, with persulfuric acid
Ammonium is as initiator.And this technique is using copper sulphate as chain-transferring agent, using hydrogen peroxide as initiator, partially to neutralize
Method to control molecular weight.The method has molecular weight easy to control, anti-without organic solvent, reaction density height, simple process
Answering short period, product appearance and inherent quality to be better than original process, low-temp storage, that crystal, user are not precipitated is easy to use and reliable
The advantages that.
It is convenient that the present invention draws materials, and preparation method is simple, and synthesis cost is lower, is suitble to industrial mass production.
Coating organic dispersing agent prepared by the present invention, appearance are yellowish clear viscous liquid, and effective component is polypropylene
Sour sodium, viscosity are 200~500cps, pH value (10% solution) 7.5~8.5.
Specific embodiment:
Present invention will be further explained and explained with reference to specific examples below:
Embodiment: a kind of coating organic dispersing agent is prepared: 99% propylene by the following ingredients as unit of parts by weight
144 parts of acid, 33.2 parts of 30% hydrogen peroxide, 191 parts of 42% liquid alkaline, 11.5 parts of 0.15% copper-bath, 100 parts are gone
Ionized water.
The preparation method of coating organic dispersing agent recited above, the specific steps of which are as follows:
A, be equipped with and require each component of concentration: 99% acrylic acid, 30% hydrogen peroxide, 42% liquid alkaline and 0.15% copper sulphate
Solution；
B, the acrylic acid of dosage, hydrogen peroxide, sodium hydroxide solution are claimed to measure through pound, is pumped to and is got ready respectively by vacuum
High-order metering fill in it is stand-by；
C, weigh dosage copper-bath enter it is spare in plastic containers；
D, the deionized water of copper-bath and dosage is injected in synthesising container, starts blender, is warming up to 75~85 DEG C
Afterwards, at the same be added dropwise acrylic acid, hydrogen peroxide and 75% dosage liquid alkaline, three kinds of liquid are controlled to be dripped off in two hours, drop
To guarantee that material is in reflux state during adding；
E, 60 degree are cooled to after being added dropwise immediately hereinafter, being slow added into the liquid alkaline of remaining 25% dosage, temperature control exists
50 DEG C or so, alkali liquor inlet is rinsed with a little deionized water, is injected in synthesising container together, reacts 2~4 small under stirring
When；
F, after reaction, through 200 mesh nylon net filters, weighing and bagging storage.
Described 0.15% copper-bath with Preparation Method it is as follows, by the cupric sulfate pentahydrate of 0.15 Kg, be added to 100
0.15% copper-bath is obtained in the deionized water of Kg, after dissolution.
The present invention, as chain-transferring agent, using hydrogen peroxide as initiator, is controlled point using copper sulphate with partially neutralization
The method of son amount, have molecular weight it is easy to control, without organic solvent, reaction density is high, simple process reaction time is short, outside product
It sees and inherent quality is better than the advantages that crystal is not precipitated for original process, low-temp storage, user is easy to use and reliable.
Claims (3)
1. a kind of coating organic dispersing agent, which is characterized in that be prepared by the following ingredients as unit of parts by weight: 99%
144 parts of acrylic acid, 33.2 parts of 30% hydrogen peroxide, 191 parts of 42% liquid alkaline, 11.5 parts of 0.15% copper-bath, 100
The deionized water of part.
2. the preparation method of coating organic dispersing agent described in claim 1, the specific steps of which are as follows:
A, be equipped with and require each component of concentration: 99% acrylic acid, 30% hydrogen peroxide, 42% liquid alkaline and 0.15% copper sulphate
Solution；
B, the acrylic acid of dosage, hydrogen peroxide, sodium hydroxide solution are claimed to measure through pound, is pumped to and is got ready respectively by vacuum
High-order metering fill in it is stand-by；
C, weigh dosage copper-bath enter it is spare in plastic containers；
D, the deionized water of copper-bath and dosage is injected in synthesising container, starts blender, is warming up to 75~85 DEG C
Afterwards, at the same be added dropwise acrylic acid, hydrogen peroxide and 75% dosage liquid alkaline, three kinds of liquid are controlled to be dripped off in two hours, drop
To guarantee that material is in reflux state during adding；
E, 60 degree are cooled to after being added dropwise immediately hereinafter, being slow added into the liquid alkaline of remaining 25% dosage, temperature control exists
50 DEG C or so, alkali liquor inlet is rinsed with a little deionized water, is injected in synthesising container together, reacts 2~4 small under stirring
When；
F, after reaction, through 200 mesh nylon net filters, weighing and bagging storage.
3. a kind of preparation method of coating organic dispersing agent according to claim 1, it is characterised in that: described 0.15%
Copper-bath with Preparation Method it is as follows, the cupric sulfate pentahydrate of 0.15 Kg is added in the deionized water of 100 Kg, dissolve
0.15% copper-bath is obtained afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056939.4A CN109486271A (en) | 2018-09-11 | 2018-09-11 | A kind of coating organic dispersing agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056939.4A CN109486271A (en) | 2018-09-11 | 2018-09-11 | A kind of coating organic dispersing agent and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109486271A true CN109486271A (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811056939.4A Pending CN109486271A (en) | 2018-09-11 | 2018-09-11 | A kind of coating organic dispersing agent and preparation method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053925A (en) * | 1990-02-06 | 1991-08-21 | 罗姆和哈斯公司 | In copolyreaction, effectively control the technology of molecular weight |
| CN1333298A (en) * | 2000-07-07 | 2002-01-30 | 株式会社日本触媒 | Low molecular weight (methyl) acrylic acid (acrylate) polymer and preparation process and use thereof |
| CN1347926A (en) * | 2000-10-12 | 2002-05-08 | 罗姆和哈斯公司 | Forming method of polymer hydro-dispersing liquid |
| US20030008804A1 (en) * | 2001-06-05 | 2003-01-09 | Qiu Xu | Starch graft copolymer, detergent builder composition including the same, and production method thereof |
| CN101705637A (en) * | 2009-09-29 | 2010-05-12 | 上海东升新材料有限公司 | Coating dispersant for papermaking and preparation method thereof |
| CN102585109A (en) * | 2011-12-30 | 2012-07-18 | 广州星业科技股份有限公司 | Styrene-acrylic emulsion and preparation method thereof |
| CN104662051A (en) * | 2012-09-26 | 2015-05-27 | 可泰克斯公司 | Method for polymerising (meth)acrylic acid in solution, polymer solutions obtained and uses thereof |
| CN105542055A (en) * | 2015-12-18 | 2016-05-04 | 成都齐达水处理工程股份有限公司 | Multi-copolymer and preparation method and use thereof |
-
2018
- 2018-09-11 CN CN201811056939.4A patent/CN109486271A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053925A (en) * | 1990-02-06 | 1991-08-21 | 罗姆和哈斯公司 | In copolyreaction, effectively control the technology of molecular weight |
| CN1333298A (en) * | 2000-07-07 | 2002-01-30 | 株式会社日本触媒 | Low molecular weight (methyl) acrylic acid (acrylate) polymer and preparation process and use thereof |
| CN1347926A (en) * | 2000-10-12 | 2002-05-08 | 罗姆和哈斯公司 | Forming method of polymer hydro-dispersing liquid |
| US20030008804A1 (en) * | 2001-06-05 | 2003-01-09 | Qiu Xu | Starch graft copolymer, detergent builder composition including the same, and production method thereof |
| CN101705637A (en) * | 2009-09-29 | 2010-05-12 | 上海东升新材料有限公司 | Coating dispersant for papermaking and preparation method thereof |
| CN102585109A (en) * | 2011-12-30 | 2012-07-18 | 广州星业科技股份有限公司 | Styrene-acrylic emulsion and preparation method thereof |
| CN104662051A (en) * | 2012-09-26 | 2015-05-27 | 可泰克斯公司 | Method for polymerising (meth)acrylic acid in solution, polymer solutions obtained and uses thereof |
| CN105542055A (en) * | 2015-12-18 | 2016-05-04 | 成都齐达水处理工程股份有限公司 | Multi-copolymer and preparation method and use thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190319 |