CN112852372B - Beer cap adhesive - Google Patents
Beer cap adhesive Download PDFInfo
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- CN112852372B CN112852372B CN202110050061.9A CN202110050061A CN112852372B CN 112852372 B CN112852372 B CN 112852372B CN 202110050061 A CN202110050061 A CN 202110050061A CN 112852372 B CN112852372 B CN 112852372B
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- solvent oil
- resin
- beer
- adhesive
- powder
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Classifications
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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
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
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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
- 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
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides a beer cap adhesive, which relates to the technical field of adhesive chemical industry and comprises the following raw materials: saturated polyester resin, isocyanate, synthetic resin, ethylene glycol monobutyl ether, diacetone alcohol, solvent oil A, melamine amino resin, extinction powder, colored phenolic aldehyde, wax powder, mixed dibasic acid dimethyl ester, cyclohexanone and solvent oil B. The product obtained by optimizing the components and the content of the raw materials has better high-temperature cooking resistance and excellent adhesive property, and simultaneously meets the excellent performance required by the production of the beer caps.
Description
Technical Field
The invention relates to the technical field of adhesive chemical industry, in particular to a beer cap adhesive.
Background
The beer cap is a tinplate or ferrochrome bottle cap for glass bottled beer, and the inside of the cap consists of a layer of coating and a gasket, and the coating is commonly called as an adhesive. Most of gasket materials are made of PE materials, and few of gasket materials are made of PVC materials, and the PVC gaskets gradually fade out of the market due to the fact that the PVC gaskets contain components harmful to human bodies, so that the gaskets made of PE materials gradually become mainstream. Most of PE adhesives used in the market at present are epoxy phenolic resin systems, and the adhesives contain bisphenol A components and are harmful to human bodies. With the increasing emphasis on food safety, it is important to develop a product that replaces the above-mentioned adhesive containing harmful components.
Chinese patent CN111349374A discloses a beer cover adhesive coating, which comprises epoxy resin, phenolic resin, polypropylene micro powder wax, an auxiliary agent and a mixed solvent, wherein the adhesive coating adopts the polypropylene micro powder wax to replace modified polyethylene micro powder wax to produce a new beer cover adhesive coating, can obviously improve the high-temperature cooking resistance, does not have the sanitary problem that a large amount of vinyl chloride monomer is remained after the polyvinyl chloride adhesive coating is cooked at high temperature, accords with the food sanitary standard, and meets the use requirement of the beer cover adhesive coating. Chinese patent CN103992767B discloses an adhesive coating for beer and beverage crown caps and a method for making the crown caps, the raw materials include epoxy resin, phenolic resin, amino resin, modified polyethylene micro powder wax, auxiliary agent and mixed solvent. The invention simplifies the technological process of the crown cap, reduces the energy consumption and the production cost. In addition, chinese patent CN101503606B also discloses an adhesive for crown cap polyolefin gaskets for beer and beverage and a preparation method thereof, the adhesive is compounded by epoxy resin, mixed solvent, polyethylene wax dispersoid, colorant and curing agent, and the final product has the advantages of no harm to human body, good sanitary performance, firm bonding, good sealing performance and realization of smooth replacement of new materials. However, the adhesive in the above patents is an epoxy phenolic resin system, and the existing epoxy phenolic adhesives generally have the following defects: the rust resistance can not meet the stricter and stricter requirements of bottle cap manufacturers; the use of epoxy resins as raw materials also poses a problem in strict food safety.
Aiming at the problems of antirust performance, food safety and the like, a beer cap adhesive needs to be searched urgently, the use of epoxy resin and the like is avoided, the safety of the product is improved, and meanwhile, the finally obtained product has better high-temperature cooking resistance and excellent adhesive property and simultaneously meets the excellent performance required by the production of the beer cap.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the beer cap adhesive, and the product finally obtained by optimizing the components and the content has better high-temperature cooking resistance and excellent bonding performance and simultaneously meets the excellent performance required by the production of the beer caps.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the invention provides a beer cap adhesive, which comprises the following raw materials: saturated polyester resin, isocyanate, synthetic resin, ethylene glycol monobutyl ether, diacetone alcohol, solvent oil A, melamine amino resin, extinction powder, colored phenolic aldehyde, wax powder, mixed dibasic acid dimethyl ester, cyclohexanone and solvent oil B.
Further, the beer cap adhesive comprises the following raw materials in percentage by weight: 40-60% of saturated polyester resin, 3-10% of isocyanate, 2-10% of synthetic resin, 2-5% of ethylene glycol butyl ether, 2-5% of diacetone alcohol, 2-5% of solvent oil A, 3-10% of melamine amino resin, 0.1-2% of extinction powder, 0.3-3% of colored phenolic aldehyde, 3-8% of wax powder, 2-5% of mixed dibasic acid dimethyl ester, 2-5% of cyclohexanone and 3-15% of solvent oil B.
Further preferably, the beer cap adhesive comprises the following raw materials in percentage by weight: 50% of saturated polyester resin, 6% of isocyanate, 5% of synthetic resin, 5% of ethylene glycol butyl ether, 2% of diacetone alcohol, 2% of solvent oil A, 4.5% of melamine amino resin, 0.8% of extinction powder, 0.7% of colored phenolic aldehyde, 5% of wax powder, 2% of mixed dibasic acid dimethyl ester, 2% of cyclohexanone and 15% of solvent oil B.
Preferably, the saturated polyester resin is a polyester resin DYNAPOL 651, the isocyanate is a polyester resin VESTAGON B1530, the synthetic resin is a polyester resin TEGO Variplus CA, the melamine amino resin is cymel 303 from Zhan New resins GmbH, and the colored phenolic aldehyde is PR307 from Zhan New resins GmbH. The related resin can be replaced by other resin of the same type of any manufacturer, and the same principle is that the colored phenolic aldehyde is produced.
Further, the solvent oil A is S-150 solvent oil, and the solvent oil B is S-100 solvent oil.
Further, the weight ratio of the total weight of the isocyanate and the melamine amino resin to the saturated polyester resin is 1: 3-5. Preferably 10.5: 50.
Further, the weight ratio of the solvent oil A to the solvent oil B is 2-5:3-15, preferably 2: 15.
Further, the matting powder is fumed silica.
The invention also provides a preparation method of the beer cap adhesive, which comprises the following steps:
heating and dissolving saturated polyester resin, cooling, adding isocyanate, melamine amino resin, wax powder, matting powder, synthetic resin, ethylene glycol monobutyl ether, diacetone alcohol, solvent oil A, solvent oil B, colored phenolic aldehyde, mixed dibasic acid dimethyl ester and cyclohexanone, mixing and stirring to obtain the product.
Further, the heating temperature is 100-120 ℃, the time is 2h, and the temperature reduction refers to the temperature reduction below 40 ℃.
Further, the mixing and stirring speed is 800-1000r/min, and the stirring time is more than 30 min.
The technical effects obtained by the invention are as follows:
the beer cap adhesive adopts high-performance polyester resin, has good processability and sterilization resistance, is matched with an intermediate with strong bonding force, amino resin, various auxiliaries and the like, and can meet the application requirement of the beer cap adhesive. The product of the invention has better high-temperature cooking resistance and excellent adhesive property, and simultaneously meets the excellent performance required by beer cap production.
Detailed Description
Note that the saturated polyester resin used in the present invention is a texas saturated polyester resin dynopol · L651, the isocyanate is texas vestain B1530, the synthetic resin is a texas synthetic resin TEGO VariPlus CA, the melamine-amino resin is cymel 303 of zechnesian resin co., ltzis PR307, the solvent oil a is S-150 solvent oil, the solvent oil B is S-100 solvent oil, the matting agent is fumed silica, and the other raw materials are common commercially available products, and therefore, the source thereof is not particularly limited.
Example 1
The beer cap adhesive comprises the following raw materials in percentage by weight: 60% of saturated polyester resin, 10% of isocyanate, 2% of synthetic resin, 2% of ethylene glycol butyl ether, 2% of diacetone alcohol, 2% of solvent oil A, 3% of melamine amino resin, 0.1% of matting powder, 0.3% of colored phenolic aldehyde, 8% of wax powder, 2% of mixed dibasic acid dimethyl ester, 5% of cyclohexanone and 3.6% of solvent oil B.
The preparation method of the beer bottle cap adhesive comprises the following steps: heating saturated polyester resin to 100 ℃, dissolving for 2h, cooling to below 40 ℃, adding isocyanate, melamine amino resin, wax powder, matting powder, synthetic resin, ethylene glycol monobutyl ether, diacetone alcohol, solvent oil A, solvent oil B, colored phenolic aldehyde, mixed dibasic acid dimethyl ester and cyclohexanone, mixing and stirring to obtain the polyurethane resin. Wherein the mixing and stirring speed is 800r/min, and the stirring time is more than 30 min.
Example 2
The beer cap adhesive comprises the following raw materials in percentage by weight: 40% of saturated polyester resin, 3% of isocyanate, 10% of synthetic resin, 5% of ethylene glycol butyl ether, 5% of diacetone alcohol, 5% of solvent oil A, 10% of melamine amino resin, 2% of matting powder, 3% of colored phenolic aldehyde, 3% of wax powder, 5% of mixed dibasic acid dimethyl ester, 2% of cyclohexanone and 7% of solvent oil B.
The preparation method of the beer bottle cap adhesive comprises the following steps: heating saturated polyester resin to 120 ℃, dissolving for 2h, cooling to below 40 ℃, adding isocyanate, melamine amino resin, wax powder, matting powder, synthetic resin, ethylene glycol monobutyl ether, diacetone alcohol, solvent oil A, solvent oil B, colored phenolic aldehyde, mixed dibasic acid dimethyl ester and cyclohexanone, mixing and stirring to obtain the polyurethane resin. Wherein the mixing and stirring speed is 1000r/min, and the stirring time is more than 30 min.
Example 3
The beer cap adhesive comprises the following raw materials in percentage by weight: 50% of saturated polyester resin, 6% of isocyanate, 5% of synthetic resin, 5% of ethylene glycol butyl ether, 2% of diacetone alcohol, 2% of solvent oil A, 4.5% of melamine amino resin, 0.8% of extinction powder, 0.7% of colored phenolic aldehyde, 5% of wax powder, 2% of mixed dibasic acid dimethyl ester, 2% of cyclohexanone and 15% of solvent oil B.
The preparation method of the beer bottle cap adhesive comprises the following steps: heating saturated polyester resin to 110 ℃, dissolving for 2h, cooling to below 40 ℃, adding isocyanate, melamine amino resin, wax powder, matting powder, synthetic resin, ethylene glycol monobutyl ether, diacetone alcohol, solvent oil A, solvent oil B, colored phenolic aldehyde, mixed dibasic acid dimethyl ester and cyclohexanone, mixing and stirring to obtain the polyurethane resin. Wherein the mixing and stirring speed is 900r/min, and the stirring time is more than 30 min.
Comparative example 1
The beer cap adhesive is different from the beer cap adhesive in example 3 only in that the beer cap adhesive comprises the following raw materials in percentage by weight: 35% of saturated polyester resin, 12% of isocyanate, 1% of synthetic resin, 6% of ethylene glycol butyl ether, 1% of diacetone alcohol, 6% of solvent oil A, 2% of melamine amino resin, 3% of matting powder, 0.2% of colored phenolic aldehyde, 10% of wax powder, 1% of mixed dibasic acid dimethyl ester, 6% of cyclohexanone and 16.8% of solvent oil B.
Comparative example 2
The only difference from example 3 is that the weight ratio of the total weight of isocyanate and melamine amino resin to the saturated polyester resin is 1:6 (the total weight of the three and the weight ratio of isocyanate and melamine amino resin is the same as in example 3).
Comparative example 3
The only difference from example 3 is that the weight ratio of miscella A to miscella B was 1:16 (the total weight of both was identical to example 3).
Comparative example 4
The only difference from example 3 is that the content of isocyanate was adjusted to 0.3% and the content of melamine amino resin was adjusted to 10.2%.
The products of examples 1-3 and comparative examples 1-4 were tested to give Table 1:
the detection method comprises the following steps: the conventional performance requirements refer to QB/T2763-2006 coating tin (or chromium) thin steel plate, and the food sanitation standard refers to GB 9685-2016 food container and additive use sanitation standard for packaging materials. Wherein, the value of the scratch item is 50 as a unit, 800g, 850g and 900g … … represent that the weight is loaded on the scratch instrument, and the coating is not damaged; the solvent resistance (MEK) item is the butanone-resistance wiping frequency, the higher the value is, the better the solvent resistance is, the row standard is usually not less than 40, and the lower the value is, the paint film is too soft, so that the abrasion in the processing process is caused, and the processability is poor; the BOX item has five detection results of 20(A), 20(B), 20(C), 20(D) and total breakage, wherein A represents that 1 corner is not broken, B represents that 2 corners are not broken, and the like, the more broken corners represent the better processability.
TABLE 1
As can be seen from Table 1, the products of examples 1 to 3 of the present invention are excellent in all the parameters, and the beer cap adhesive of example 3 is optimum in all the parameters such as the solid content. Comparative examples 1 to 4 are inferior to example 3 in each of the parameters, more or less, in comparison with example 3, and particularly, when the content of the melamine amino resin is changed, the corresponding bactericidal antacid effect and processability, etc. are significantly changed, and when the content of the isocyanate is changed, the bactericidal performance is significantly changed and the processability is relatively less changed. Similarly, when the whole content of the raw materials is changed or the proportion relation of part of the raw materials such as the solvent oil and the like is changed, the corresponding sterilization and antacid effects, the processing performance and the like of the product are also changed correspondingly.
Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. An adhesive for beer tops, characterized in that: the method comprises the following raw materials: the composite material comprises the following raw materials in percentage by weight: 40-60% of saturated polyester resin, 3-10% of isocyanate, 2-10% of synthetic resin, 2-5% of ethylene glycol butyl ether, 2-5% of diacetone alcohol, 2-5% of solvent oil A, 3-10% of melamine amino resin, 0.1-2% of extinction powder, 0.3-3% of colored phenolic aldehyde, 3-8% of wax powder, 2-5% of mixed dibasic acid dimethyl ester, 2-5% of cyclohexanone and 3-15% of solvent oil B; the weight ratio of the total weight of the isocyanate and the melamine amino resin to the saturated polyester resin is 1: 3-5; the weight ratio of the solvent oil A to the solvent oil B is 2-5: 3-15;
the solvent oil A is S-150 solvent oil, and the solvent oil B is S-100 solvent oil.
2. The beer cap adhesive of claim 1 wherein: the matting powder is fumed silica.
3. The method of preparing a beer cap adhesive according to claim 1 or 2, wherein: the method comprises the following steps:
heating and dissolving saturated polyester resin, cooling, adding isocyanate, melamine amino resin, wax powder, matting powder, synthetic resin, ethylene glycol monobutyl ether, diacetone alcohol, solvent oil A, solvent oil B, colored phenolic aldehyde, mixed dibasic acid dimethyl ester and cyclohexanone, mixing and stirring to obtain the product.
4. The production method according to claim 3, characterized in that: the heating temperature is 100-120 ℃, and the time is 2 h.
5. The production method according to claim 3, characterized in that: the temperature reduction refers to the temperature reduction to be below 40 ℃.
6. The production method according to claim 3, characterized in that: the mixing and stirring speed is 800-1000r/min, and the stirring time is more than 30 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110050061.9A CN112852372B (en) | 2021-01-14 | 2021-01-14 | Beer cap adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110050061.9A CN112852372B (en) | 2021-01-14 | 2021-01-14 | Beer cap adhesive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112852372A CN112852372A (en) | 2021-05-28 |
| CN112852372B true CN112852372B (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110050061.9A Active CN112852372B (en) | 2021-01-14 | 2021-01-14 | Beer cap adhesive |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06200210A (en) * | 1992-12-28 | 1994-07-19 | Mitsui Toatsu Chem Inc | Coating resin composition for metallic can exterior |
| CN102863935A (en) * | 2012-09-06 | 2013-01-09 | 杨野鹏 | Adhesive, adhesive-based crown cap and preparation method of crown cap |
| CN103992767B (en) * | 2014-05-07 | 2016-03-09 | 苏州市三新包装材料科技有限公司 | For beer, the adhesive coating of beverage Metal Crown Lid and the making method of Metal Crown Lid |
| CN103952112A (en) * | 2014-05-11 | 2014-07-30 | 马鞍山博诺环保科技有限公司 | High-performance PE adhesive for lid and preparation method of PE adhesive |
| CN104356890A (en) * | 2014-10-18 | 2015-02-18 | 中山市柏顿涂料有限公司 | High temperature steaming and cooking-resistant deep-drawing white magnetic oil for metal printing and can manufacturing and preparation method thereof |
| CN104710957A (en) * | 2015-03-30 | 2015-06-17 | 海丰赛文（天津）包装材料有限公司 | Crown cap PE adhesive and preparation method thereof |
| CN110791183B (en) * | 2019-11-19 | 2021-11-16 | 立邦工业涂料(上海)有限公司 | Matte finish paint composition and application thereof |
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