CN112280501A - Vinyl acetate adhesive and preparation method thereof - Google Patents
Vinyl acetate adhesive and preparation method thereof Download PDFInfo
- Publication number
- CN112280501A CN112280501A CN201910663819.9A CN201910663819A CN112280501A CN 112280501 A CN112280501 A CN 112280501A CN 201910663819 A CN201910663819 A CN 201910663819A CN 112280501 A CN112280501 A CN 112280501A
- Authority
- CN
- China
- Prior art keywords
- parts
- vinyl acetate
- water
- solution obtained
- polyvinyl alcohol
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J131/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Adhesives based on derivatives of such polymers
- C09J131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09J131/04—Homopolymers or copolymers of vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides a vinyl acetate adhesive and a preparation method thereof, and the vinyl acetate adhesive comprises the following components: vinyl acetate, ethylene ethyl methacrylate, persulfate, an emulsifier, polyvinyl alcohol, a plasticizer, sodium bisulfite, CaCO3, water, a defoaming agent, vitamins, tert-butyl hydroperoxide and a preservative; the adhesive is nontoxic and harmless, has high bonding strength, good water resistance and boiling resistance, and reaches the JAS standards of Japan JISK6852 and Japan flooring provinces of agriculture and forestry.
Description
Technical Field
The invention belongs to the technical field of adhesives, and particularly relates to a vinyl acetate adhesive and a preparation method thereof.
Technical Field
With the increasing health of environmental protection regulations in China and the improvement of health consciousness of people, the environmental-friendly adhesive which has good quality and no pollution and meets international standards is gradually becoming the mainstream product of synthetic adhesive. The water white latex does not contain organic solvent, has no pollution and is an environment-friendly adhesive product.
But the water resistance, the heat resistance and the frost resistance of the polyvinyl acetate emulsion are poor, and the bonding strength of the polyvinyl acetate emulsion is greatly reduced under the damp and hot conditions, so that the application of the polyvinyl acetate emulsion is limited to a certain extent. In order to improve the properties of polyvinyl acetate emulsions, it is necessary to modify them.
The invention provides a vinyl acetate adhesive and a preparation method thereof, the adhesive is nontoxic and harmless, has high bonding strength, good water resistance and boiling resistance, and reaches the standards of Japanese JISK6852 and Japanese floor, agriculture and forestry province JAS.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a vinyl acetate adhesive which comprises the following components in parts by weight: vinyl acetate, ethylene ethyl methacrylate, persulfate, an emulsifier, polyvinyl alcohol, a plasticizer, sodium bisulfite, CaCO3, water, a defoaming agent, vitamins, tert-butyl hydroperoxide and a preservative; wherein the contents of the components are respectively as follows according to the parts by weight: 24-25 parts of vinyl acetate, 0.6-0.7 part of ethylene ethyl acetate methacrylate, 0.1-0.2 part of persulfate, 1.5-2 parts of plasticizer, 0.1-0.15 part of emulsifier, 0.3-0.4 part of sodium bisulfite, 4.5-5 parts of polyvinyl alcohol, CaCO315 to 20 portions of water, 47 to 52 portions of water, 0.09 to 0.1 portion of defoaming agent, 0.001 to 0.002 portion of vitamin C, 0.003 to 0.004 portion of tert-butyl hydroperoxide and 0.1 to 0.2 portion of preservative.
The invention also provides a preparation method of the vinyl acetate adhesive, which comprises the following steps:
the method comprises the following steps: weighing the raw materials in parts by weight for later use;
step two: adding 28 parts of water and 3 parts of polyvinyl alcohol into a reaction kettle, raising the temperature in the reaction kettle to 90 ℃, and stirring to completely dissolve the polyvinyl alcohol; and carrying out heat preservation treatment;
dissolving all persulfate by using 9 parts of water, and stirring to completely dissolve the persulfate;
step four, the temperature of the solution obtained in the step three is increased to over 75 ℃, and all the emulsifying agent is added within 5 minutes;
step five, adding 50% of overflowing acid salt solution and 4 parts of vinyl acetate into the solution obtained in the step four within 30 minutes;
step six: adding another 50% of overflowing acid salt solution and the remaining 20 parts of vinyl acetate and all ethylene ethyl acetate methacrylate into the solution obtained in the step five within 4-4.5 hours;
step seven: stirring for 30 minutes after all the dropwise adding is finished, adding vitamins and tert-butyl hydroperoxide, and performing vacuum extraction to obtain an extracting solution;
step eight: adding 1.5 parts of polyvinyl alcohol into 9 parts of water and continuously stirring; heating the mixture to 90 ℃ by steam, and preserving the heat for 2 hours;
step nine: 20 parts of CaCO3Adding all sodium bisulfite and 1.8 parts of water into the solution obtained in the step eight, and mixing and stirring for 20-40 minutes;
step ten, cooling the solution obtained in the step nine to below 55 ℃, and adding the cooled mixed solution into a reaction kettle;
step eleven, cooling the solution obtained in the step eleven, and adding trace raw materials such as a defoaming agent, a preservative and the like to obtain the adhesive.
Advantageous effects
The invention provides a vinyl acetate adhesive and a preparation method thereof, the adhesive is nontoxic and harmless, has high bonding strength, good water resistance and boiling resistance, and reaches the standards of Japanese JISK6852 and Japanese floor, agriculture and forestry province JAS.
Detailed Description
One aspect of the invention provides a vinyl acetate adhesive, which comprises the following components: vinyl acetate, ethylene ethyl methacrylate, persulfate, an emulsifier, polyvinyl alcohol, a plasticizer, sodium bisulfite, CaCO3, water, a defoaming agent, vitamins, tert-butyl hydroperoxide and a preservative; wherein the contents of the components are respectively as follows according to the parts by weight: 24-25 parts of vinyl acetate, 0.6-0.7 part of ethylene ethyl acetate methacrylate, 0.1-0.2 part of persulfate, 1.5-2 parts of plasticizer, 0.1-0.15 part of emulsifier, 0.3-0.4 part of sodium bisulfite, 4.5-5 parts of polyvinyl alcohol, CaCO315 to 20 portions of water, 47 to 52 portions of water, 0.09 to 0.1 portion of defoaming agent, 0.001 to 0.002 portion of vitamin C, 0.003 to 0.004 portion of tert-butyl hydroperoxide and 0.1 to 0.2 portion of preservative.
The invention also provides a preparation method of the vinyl acetate adhesive, which comprises the following steps:
the method comprises the following steps: weighing the raw materials in parts by weight for later use;
step two: adding 28 parts of water and 3 parts of polyvinyl alcohol into a reaction kettle, raising the temperature in the reaction kettle to 90 ℃, and stirring to completely dissolve the polyvinyl alcohol; and carrying out heat preservation treatment;
dissolving all persulfate by using 9 parts of water, and stirring to completely dissolve the persulfate;
step four, the temperature of the solution obtained in the step three is increased to over 75 ℃, and all the emulsifying agent is added within 5 minutes;
step five, adding 50% of overflowing acid salt solution and 4 parts of vinyl acetate into the solution obtained in the step four within 30 minutes;
step six: adding another 50% of overflowing acid salt solution and the remaining 20 parts of vinyl acetate and all ethylene ethyl acetate methacrylate into the solution obtained in the step five within 4-4.5 hours;
step seven: stirring for 30 minutes after all the dropwise adding is finished, adding vitamins and tert-butyl hydroperoxide, and performing vacuum extraction to obtain an extracting solution;
step eight: adding 1.5 parts of polyvinyl alcohol into 9 parts of water and continuously stirring; heating the mixture to 90 ℃ by steam, and preserving the heat for 2 hours;
step nine: 20 parts of CaCO3Adding all sodium bisulfite and 1.8 parts of water into the solution obtained in the step eight, and mixing and stirring for 20-40 minutes;
step ten, cooling the solution obtained in the step nine to below 55 ℃, and adding the cooled mixed solution into a reaction kettle;
step eleven, cooling the solution obtained in the step eleven, and adding trace raw materials such as a defoaming agent, a preservative and the like to obtain the adhesive.
Claims (2)
1. The vinyl acetate adhesive is characterized by comprising the following components: vinyl acetate, ethylene ethyl methacrylate, persulfate, an emulsifier, polyvinyl alcohol, a plasticizer, sodium bisulfite, CaCO3, water, a defoaming agent, vitamins, tert-butyl hydroperoxide and a preservative; wherein the contents of the components are respectively as follows according to the parts by weight: 24-25 parts of vinyl acetate, 0.6-0.7 part of ethylene ethyl acetate methacrylate, 0.1-0.2 part of persulfate, 1.5-2 parts of plasticizer, 0.1-0.15 part of emulsifier, 0.3-0.4 part of sodium bisulfite, 4.5-5 parts of polyvinyl alcohol, CaCO315-20 parts of water, 47-52 parts of defoaming agent, 0.09-0.1 part of defoaming agent and 0.001-0.00 part of vitamin C2 portions of tert-butyl hydroperoxide, 0.003 to 0.004 portion of tert-butyl hydroperoxide and 0.1 to 0.2 portion of preservative.
2. The preparation method of the vinyl acetate adhesive is characterized by comprising the following steps: the method comprises the following steps: weighing the raw materials in parts by weight for later use; step two: adding 28 parts of water and 3 parts of polyvinyl alcohol into a reaction kettle, raising the temperature in the reaction kettle to 90 ℃, and stirring to completely dissolve the polyvinyl alcohol; and carrying out heat preservation treatment; dissolving all persulfate by using 9 parts of water, and stirring to completely dissolve the persulfate; step four, the temperature of the solution obtained in the step three is increased to over 75 ℃, and all the emulsifying agent is added within 5 minutes; step five, adding 50% of overflowing acid salt solution and 4 parts of vinyl acetate into the solution obtained in the step four within 30 minutes; step six: adding another 50% of overflowing acid salt solution and the remaining 20 parts of vinyl acetate and all ethylene ethyl acetate methacrylate into the solution obtained in the step five within 4-4.5 hours; step seven: stirring for 30 minutes after all the dropwise adding is finished, adding vitamins and tert-butyl hydroperoxide, and performing vacuum extraction to obtain an extracting solution; step eight: adding 1.5 parts of polyvinyl alcohol into 9 parts of water and continuously stirring; heating the mixture to 90 ℃ by steam, and preserving the heat for 2 hours; step nine: 20 parts of CaCO3Adding all sodium bisulfite and 1.8 parts of water into the solution obtained in the step eight, and mixing and stirring for 20-40 minutes; step ten, cooling the solution obtained in the step nine to below 55 ℃, and adding the cooled mixed solution into a reaction kettle; and step eleven, cooling the solution obtained in the step eleven, and adding a defoaming agent and a preservative to obtain the adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910663819.9A CN112280501A (en) | 2019-07-23 | 2019-07-23 | Vinyl acetate adhesive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910663819.9A CN112280501A (en) | 2019-07-23 | 2019-07-23 | Vinyl acetate adhesive and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112280501A true CN112280501A (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910663819.9A Pending CN112280501A (en) | 2019-07-23 | 2019-07-23 | Vinyl acetate adhesive and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115595092A (en) * | 2022-10-14 | 2023-01-13 | 沈阳爱克浩博化工有限公司（Cn） | Water-resistant PVAc white latex and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275655A (en) * | 2013-05-29 | 2013-09-04 | 廊坊三利木业有限公司 | One-component laminating glue |
| CN104403608A (en) * | 2014-11-04 | 2015-03-11 | 中国林业科学研究院林产化学工业研究所 | Water-tolerant polyvinyl acetate wood adhesive and preparation method thereof |
| CN107383265A (en) * | 2017-08-21 | 2017-11-24 | 顶立新材料科技有限公司 | A kind of water-fast grade meets the preparation method of one-component carpenter's adhesive of EN204 D3 standards |
| CN108219043A (en) * | 2016-12-21 | 2018-06-29 | 中国石化集团四川维尼纶厂 | A kind of preparation method of polyvinyl acetate emulsion |
-
2019
- 2019-07-23 CN CN201910663819.9A patent/CN112280501A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275655A (en) * | 2013-05-29 | 2013-09-04 | 廊坊三利木业有限公司 | One-component laminating glue |
| CN104403608A (en) * | 2014-11-04 | 2015-03-11 | 中国林业科学研究院林产化学工业研究所 | Water-tolerant polyvinyl acetate wood adhesive and preparation method thereof |
| CN108219043A (en) * | 2016-12-21 | 2018-06-29 | 中国石化集团四川维尼纶厂 | A kind of preparation method of polyvinyl acetate emulsion |
| CN107383265A (en) * | 2017-08-21 | 2017-11-24 | 顶立新材料科技有限公司 | A kind of water-fast grade meets the preparation method of one-component carpenter's adhesive of EN204 D3 standards |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115595092A (en) * | 2022-10-14 | 2023-01-13 | 沈阳爱克浩博化工有限公司（Cn） | Water-resistant PVAc white latex and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210129 |
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