CN113512141A - Method for preventing resin from thickening and generating large particles during polymerization reaction - Google Patents
Method for preventing resin from thickening and generating large particles during polymerization reaction Download PDFInfo
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- CN113512141A CN113512141A CN202110265757.3A CN202110265757A CN113512141A CN 113512141 A CN113512141 A CN 113512141A CN 202110265757 A CN202110265757 A CN 202110265757A CN 113512141 A CN113512141 A CN 113512141A
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- acrylic acid
- thickening
- large particles
- resin
- acrylate
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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
- C08F220/00—Copolymers 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
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Abstract
The invention discloses a method for preventing resin from thickening and generating large particles during polymerization, which relates to the technical field of resin processing and comprises the following components in parts by weight: 350g of butyl acrylate, 300g of 2-isooctyl acrylate, 250g of acrylic acid, 30g of 4-hydroxyethyl acrylate and 1.2g of azodiisobutyronitrile, and putting the mixture into mixing equipment, and stirring and mixing the mixture uniformly to obtain the acrylic acid modified butyl acrylate; the content of the second component in the acrylic acid is 0.75-3.75g, the storage temperature of the acrylic acid is 25 ℃, and the storage period is within 80 days after the production of the acrylic acid. It is possible to produce an acrylic resin and an acrylic resin having good quality without causing problems of large particles and thickening, and without causing problems of excessive load on a stirrer and poor filtration of the product.
Description
Technical Field
The invention relates to the technical field of resin processing, in particular to a method for preventing resin from being tackified and generating large particles during polymerization.
Background
The conventional processes for producing an acrylic resin or an acrylic ester resin in an aqueous polymer dispersion or an organic solvent have problems that the viscosity of the polymerization reaction solution rapidly increases, an excessive load is applied to a stirrer, and the cost of a reaction apparatus increases. In addition, the thickening may cause a portion of poor stirring, and may further cause problems of thickening and large particles, and also may cause problems of poor filtration of the product. Thickening in acrylic resins or acrylic ester resins, when an unfavorable crosslinking reaction occurs or a high molecular weight is produced in the production of acrylic resins or acrylic ester resins in both aqueous systems and solvent systems, thickening of the resins and the formation of large particles are caused. In the production of an acrylic resin or an acrylate resin using an acrylic or acrylate-based monomer, it is difficult to prevent or suppress the formation of such large particles or the thickening with an additive.
Disclosure of Invention
The present invention has been made in view of the above-mentioned problems and disadvantages of the prior art, and an object of the present invention is to provide a method for producing an acrylic resin and an acrylic resin having good quality, which are free from problems of large particles and thickening, and which do not cause problems of excessive load on a stirrer and poor filtration of products, by preventing thickening of a resin during polymerization and generation of large particles, with reasonable design.
In order to achieve the purpose, the invention adopts the following technical scheme:
the following components by weight: 350g of butyl acrylate, 300g of 2-isooctyl acrylate, 250g of acrylic acid, 30g of 4-hydroxyethyl acrylate and 1.2g of azodiisobutyronitrile, and putting the mixture into mixing equipment, and stirring and mixing the mixture uniformly to obtain the acrylic acid modified butyl acrylate; the content of the second component in the acrylic acid is 0.75-3.75g, the storage temperature of the acrylic acid is 25 ℃, and the storage period is within 80 days after the production of the acrylic acid.
After the method is adopted, the invention has the beneficial effects that: the invention provides a method for preventing resin from thickening and generating large particles during polymerization reaction, which can produce acrylic resin and acrylic resin with good quality without large particles and thickening problems, and without excessive load of a stirrer and poor filtration of products.
Description of the drawings:
FIG. 1 is a table showing the storage temperature of acrylic acid and the concentration of a dimer with time in the present invention.
FIG. 2 is a table of the percent change in the content of two entities at 30 degrees Celsius with time in the present invention.
FIG. 3 is a table showing the amounts of components and the performance test of examples of the present invention.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the following components by weight: 350g of butyl acrylate, 300g of 2-isooctyl acrylate, 250g of acrylic acid, 30g of 4-hydroxyethyl acrylate and 1.2g of azodiisobutyronitrile, and putting the mixture into mixing equipment, and stirring and mixing the mixture uniformly to obtain the acrylic acid modified butyl acrylate; the content of the secondary component in the acrylic acid is 0.75g, the storage temperature of the acrylic acid is 25 ℃, and the storage period is within 80 days after the production of the acrylic acid.
Example two:
the following components by weight: 350g of butyl acrylate, 300g of 2-isooctyl acrylate, 250g of secondary acrylic acid, 30g of 4-hydroxyethyl acrylate and 1.2g of azodiisobutyronitrile are put into mixing equipment and stirred and mixed uniformly; the content of the secondary component in the acrylic acid is 3.75g, the storage temperature of the acrylic acid is 25 ℃, and the storage period is within 80 days after the production of the acrylic acid.
Example three:
the following components by weight: 350g of butyl acrylate, 300g of 2-isooctyl acrylate, 250g of secondary acrylic acid, 30g of 4-hydroxyethyl acrylate and 1.2g of azodiisobutyronitrile are put into mixing equipment and stirred and mixed uniformly; the content of the secondary component in the acrylic acid is 8.5g, the storage temperature of the acrylic acid is 25 ℃, and the storage period is within 80 days after the production of the acrylic acid.
Example four:
the following components by weight: 350g of butyl acrylate, 300g of 2-isooctyl acrylate, 250g of secondary acrylic acid, 30g of 4-hydroxyethyl acrylate and 1.2g of azodiisobutyronitrile are put into mixing equipment and stirred and mixed uniformly; the content of the secondary component in the acrylic acid is 15g, the storage temperature of the acrylic acid is 25 ℃, and the storage period is within 80 days after the production of the acrylic acid.
The viscosity, solid content, acid value, and large particles and viscosity increase of the products of examples one to four were measured, and it can be seen from fig. 3 that the products of examples one and two were acceptable.
After the method is adopted, the invention has the beneficial effects that: the invention provides a method for preventing resin from thickening and generating large particles during polymerization reaction, which can produce acrylic resin and acrylic resin with good quality without large particles and thickening problems, and without excessive load of a stirrer and poor filtration of products.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (1)
1. A method for preventing thickening of a resin and formation of large particles during polymerization, comprising: the following components by weight: 350g of butyl acrylate, 300g of 2-isooctyl acrylate, 250g of acrylic acid, 30g of 4-hydroxyethyl acrylate and 1.2g of azodiisobutyronitrile, and putting the mixture into mixing equipment, and stirring and mixing the mixture uniformly to obtain the acrylic acid modified butyl acrylate; the content of the second component in the acrylic acid is 0.75-3.75g, the storage temperature of the acrylic acid is 25 ℃, and the storage period is within 80 days after the production of the acrylic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110265757.3A CN113512141A (en) | 2021-03-11 | 2021-03-11 | Method for preventing resin from thickening and generating large particles during polymerization reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110265757.3A CN113512141A (en) | 2021-03-11 | 2021-03-11 | Method for preventing resin from thickening and generating large particles during polymerization reaction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113512141A true CN113512141A (en) | 2021-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110265757.3A Pending CN113512141A (en) | 2021-03-11 | 2021-03-11 | Method for preventing resin from thickening and generating large particles during polymerization reaction |
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| Country | Link |
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| CN (1) | CN113512141A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000109784A (en) * | 1998-08-04 | 2000-04-18 | Toagosei Co Ltd | Emulsion type adhesive or adhesive composition, and pressure sensitive adhesive sheet |
| CN101735380A (en) * | 2009-12-14 | 2010-06-16 | 上海维凯化学品有限公司 | Preparation method of acrylic resin with low content of volatile organic compounds |
| CN108395496A (en) * | 2018-03-16 | 2018-08-14 | 江阴恒兴涂料有限公司 | A kind of electrophoretic coating high glaze acrylic resin and preparation method thereof |
-
2021
- 2021-03-11 CN CN202110265757.3A patent/CN113512141A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000109784A (en) * | 1998-08-04 | 2000-04-18 | Toagosei Co Ltd | Emulsion type adhesive or adhesive composition, and pressure sensitive adhesive sheet |
| CN101735380A (en) * | 2009-12-14 | 2010-06-16 | 上海维凯化学品有限公司 | Preparation method of acrylic resin with low content of volatile organic compounds |
| CN108395496A (en) * | 2018-03-16 | 2018-08-14 | 江阴恒兴涂料有限公司 | A kind of electrophoretic coating high glaze acrylic resin and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 朱希慧: "丙烯酸精制系统防聚措施", 《化工管理》 * |
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Application publication date: 20211019 |
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