CN105368253A - Aluminum vessel interior surface coating combination and preparation method thereof - Google Patents
Aluminum vessel interior surface coating combination and preparation method thereof Download PDFInfo
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- CN105368253A CN105368253A CN201510821092.4A CN201510821092A CN105368253A CN 105368253 A CN105368253 A CN 105368253A CN 201510821092 A CN201510821092 A CN 201510821092A CN 105368253 A CN105368253 A CN 105368253A
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Abstract
The invention provides an aluminum vessel interior surface coating combination. The aluminum vessel interior surface coating combination comprises epoxy resin, a modified phenolic resin liquid, amino resin, mixed binary acid ester, a propanediol ethers solvent, a propanediol ether lipid solvent, an aromatic solvent, a leveling agent and an adhesion promoter with weight percentage of 15-30:2-6:3-6:2-12:15-35:5-20:5-15:0.1-0.3:0.5-5. According to the invention, the epoxy resin is one or combination of E-03 epoxy resin and E-01 epoxy resin; the modified phenolic resin accounts for 60-80% of that of the modified phenolic resin liquid, the modified phenolic resin is butylated phenolic resin having thermosetting property, wherein, type of the phenolic resin is para-tert-butyl phenol or bisphenol A phenol formaldehyde resin. The aluminum vessel interior surface coating combination also comprises toughened resin with weight percentage being 5%-10%.
Description
Technical field
The present invention relates to coating composition and preparation method thereof, refer to more specifically and a kind ofly coat coating composition of aluminium vessel internal surface and preparation method thereof.
Background technology
The effect of packaging container of metal inner-wall paint, forms the very thin coating of one deck by spraying equipment at container inner wall, avoids content directly to contact with metallic surface, and protection metal vessel internal surface is not corroded by content.Because undercoat directly contacts with content, therefore to meet except mechanical property except adding man-hour, internally coated material can not move in content, has enough resistances there will not be coating by phenomenons such as dissolved corrosions to content, simultaneously also will by the detection certification of the third-party institution.The Aluminum Bottle coating now used be higher by external import price, the haul-cycle time is long, storage characteristics is poor, when temperature is higher than 30 DEG C, can there is the situation of fast thickening in coating, particularly annual 4-10 month, and coating passes through sea-freight to time domestic from external, viscosity has exceeded the permitted maximum range of viscosity, need to add solvent and carry out viscosity adjustment, because the solvent ratios of coating increases, increase difficulty of construction; In addition, existing import coating also has higher requirement when storing, and need be placed on the special air-conditioned room arranged and place, envrionment temperature is arranged on less than 25 DEG C, condition of storage requires higher, stores the improper viscosity that just there will be and to increase substantially the situation of even gel.
Summary of the invention
For overcoming in background technology pointed problem, the invention provides a kind of strong adhesion, viscosity stability is high when having higher acid-and base-resisting, room temperature storage metal vessel internal surface coating composition and preparation method thereof.
A kind of aluminium vessel internal surface coating composition, comprise epoxy resin, modified phenolic resins liquid, aminoresin, mixed dibasic acid fat, propylene glycol kind solvent, propylene glycol lipid solvent, aromatic solvent, flow agent, adhesion promoter, the weight percent of each component is epoxy resin: modified phenolic resins liquid: aminoresin: mixed dibasic acid fat: propylene glycol kind solvent: propylene glycol lipid solvent: aromatic solvent: flow agent: adhesion promoter=15 ~ 30:2 ~ 6:3 ~ 6:2 ~ 12:15 ~ 35:5 ~ 20:5 ~ 15:0.1 ~ 0.3:0.5 ~ 5.
Preferably, described epoxy resin is wherein a kind of or its combination of E-03 epoxy resin, E-01 epoxy resin.
Preferably, in described modified phenolic resins liquid, modified phenolic resins accounts for 60 ~ 80%.
Preferably, described modified phenolic resins is thermoset butylated phenolic resin, and wherein the type of resol is p-tert-butylphenol or bisphenol A phenolic resin.
Preferably, described propylene glycol kind solvent is propylene glycol monomethyl ether, propylene-glycol ethyl ether, propandiol butyl ether wherein a kind of or its composition, and described propylene glycol lipid solvent is 1-Methoxy-2-propyl acetate, propandiol butyl ether acetic ester wherein a kind of or its composition.
Preferably, described aminoresin is that benzene is for aminoresin.
Preferably, described adhesion promoter is phosphoric acid derivatives, epoxy phosphate ester or polyester phosphate.
Preferably, described aluminium vessel internal surface coating composition also comprises the toughened resin that weight percent is 5% ~ 10%.
The preparation method of above-mentioned aluminium vessel internal surface coating composition, comprises the following steps:
(1), drop into weight percent be 2 ~ 12% mixed dibasic acid fat, 10 ~ 25% propylene glycol kind solvent, 5 ~ 20% propylene glycol lipid solvent in Scattered Kettle, open whipping device to stir, stirring velocity remains on 400 ~ 500r/min, open heating installation, Heating temperature is set to 95 DEG C.
(2) drop into 15 ~ 30% epoxy resin, while stirring, the toughened resin of 0 ~ 10%, start writing time and temperature when temperature is raised to 90 DEG C, carried out once record every 30 minutes, Keep agitation 100 minutes.
(3), detect resin whether dissolve completely, do not dissolve completely, extend heating, churning time until resin dissolves completely.
(4), confirm that resin dissolves completely after, close heating installation, drop into the propylene glycol kind solvent of 5% ~ 10%, the aromatic solvent of 5% ~ 15%; Continue to stir cooling, after temperature is lower than 80 DEG C, dropping into weight percent is the modified phenolic resins liquid of 2% ~ 6%, aminoresin, the flow agent of 0.1% ~ 1%, the adhesion promoter of 0.5% ~ 3% of 3% ~ 6%, stirs after 15-20 minute and carries out sampling detection.
(5), detect qualified after, filter and package.
Preferably, propylene glycol kind solvent input in step (1) is propylene glycol monomethyl ether and propylene-glycol ethyl ether, wherein the weight percent of propylene glycol monomethyl ether and propylene-glycol ethyl ether is 1:0 ~ 0:1, and input propylene glycol lipid solvent is 1-Methoxy-2-propyl acetate.
Preferably, propylene glycol kind solvent input in step (4) is propylene glycol monomethyl ether, aromatic solvent is dimethylbenzene, aminoresin is that benzene is for aminoresin, modified phenolic resins liquid is butylated phenolic resin solution, and sticking power promotes that ` agent is selected from phosphoric acid derivatives, epoxy phosphate ester, polyester phosphate one wherein.
Preferably, the solids content of described butylated phenolic resin liquid is 60 ~ 80%.
Metal vessel internal surface coating composition of the present invention has the following advantages: 1, coating composition after construction, and coating transparent is bright, almost colourless; 2, when ground significantly modification and repeatedly Compression and Expansion, paint film still can be attached on ground securely, the phenomenon of do not occur coating breaks down, peeling off; 3, coating chemical resistance is good, acid-and base-resisting, solvent based corrosion; 4, meet GB96855, stability in storage is good, at room temperature store the phenomenon that there will not be viscosity sharply to rise.
Embodiment
Embodiment 1:
Get E-03 epoxy resin 30 weight part; Concentration is butylated phenolic resin 5 weight part (wherein the type of resol is p-tert-butylphenol resol) of 72%; Benzene is for aminoresin 4 weight part; Mixed dibasic acid fat 12 weight part; Propylene glycol monomethyl ether 20 weight part, propandiol butyl ether 8 weight part; 1-Methoxy-2-propyl acetate 10 weight part; Dimethylbenzene 5.7 weight part; Flow agent BYK-3100.3 weight part; 5 parts by weight epoxy phosphoric acid ester.
Preparation method:
By above-mentioned mixed dibasic acid fat 12 weight part, propylene glycol monomethyl ether 10 weight part, propandiol butyl ether 8 weight part got ready, and 1-Methoxy-2-propyl acetate 10 weight part drops in Scattered Kettle, open whipping device to stir, stirring velocity remains on 400r/min, open heating installation, Heating temperature is set to 95 DEG C;
Drop into above-mentioned E-03 epoxy resin 30 weight part got ready while stirring, writing time and temperature is started when temperature rises to 90 DEG C, every 30 minutes records once, after recording three times, observe resin whether to dissolve completely, if do not dissolve completely, then extend heating with churning time until resin dissolves completely;
Heating installation is closed after resin dissolves completely, remaining propylene glycol monomethyl ether solvent 10 weight part is dropped in Scattered Kettle, and drop into above-mentioned dimethylbenzene 5.7 weight part got ready, continue to stir cooling, after temperature is lower than 80 DEG C, drop into above-mentioned butylated phenolic resin 5 weight part got ready, benzene is for aminoresin 4 weight part, flow agent BYK-3100.3 weight part, epoxy phosphate ester 5 weight part, stirs after 15 minutes and carries out detection sampling; With the mixed solvent (1:1) of dimethylbenzene and propylene glycol monomethyl ether as viscosity modulating solvent; Detect qualified after filter and package.
Carried out detecting (performance test) by the above-mentioned metal vessel internal surface coating composition prepared, the product performance obtained after test are as following table (1):
Table (1)
Embodiment 2:
Get E-03 epoxy resin 15 weight part; Phenoxy resin 10 weight part, concentration is butylated phenolic resin 2 weight part (wherein the type of resol is p-tert-butylphenol resol) of 70%; Benzene is for aminoresin 6 weight part; Mixed dibasic acid fat 7 weight part; Propylene glycol monomethyl ether 25 weight part, propandiol butyl ether 8 weight part; 1-Methoxy-2-propyl acetate 12 weight part; Dimethylbenzene 11.9 weight part; Flow agent BYK-3100.1 weight part; 3 parts by weight epoxy phosphoric acid ester.
Preparation method:
By above-mentioned mixed dibasic acid fat 7 weight part, propylene glycol monomethyl ether 20 weight part, propandiol butyl ether 8 weight part got ready, and 1-Methoxy-2-propyl acetate 12 weight part drops in Scattered Kettle, open whipping device to stir, stirring velocity remains on 400r/min, open heating installation, Heating temperature is set to 95 DEG C;
Drop into above-mentioned E-03 epoxy resin 15 weight part got ready while stirring, phenoxy resin 10 weight part, writing time and temperature is started when temperature rises to 90 DEG C, every 30 minutes records once, after recording three times, observe resin whether to dissolve completely, if do not dissolve completely, then extend heating with churning time until resin dissolves completely;
Heating installation is closed after resin dissolves completely, remaining propylene glycol monomethyl ether 5 weight part is dropped in Scattered Kettle, and drop into above-mentioned dimethylbenzene 11.9 weight part got ready, stir cooling, after temperature is lower than 80 DEG C, drop into above-mentioned butylated phenolic resin 2 weight part got ready, benzene is for aminoresin 6 weight part, flow agent BYK-3100.1 weight part, epoxy phosphate ester 3 weight part, stirs after 15 minutes and carries out detection sampling; With the mixed solvent (1:1) of dimethylbenzene and propylene glycol monomethyl ether as viscosity modulating solvent; Detect qualified after filter and package.
The product performance obtained after test are as following table (2):
Table (2)
Experimental example 3:
Get E-03 epoxy resin 15 weight part; E-01 resin 12 weight part, concentration is butylated phenolic resin 4 weight part (wherein the type of resol is bisphenol A phenolic resin) of 60%; Benzene is for aminoresin 4 weight part; Mixed dibasic acid fat 7 weight part; Propylene glycol monomethyl ether 25 weight part, propandiol butyl ether 8 weight part; 1-Methoxy-2-propyl acetate 12 weight part; Dimethylbenzene 8.9 weight part; Flow agent BYK-3100.1 weight part; 4 parts by weight epoxy phosphoric acid ester.
Preparation method:
By above-mentioned mixed dibasic acid fat 7 weight part, propylene glycol monomethyl ether 15 weight part, propandiol butyl ether 8 weight part got ready, and 1-Methoxy-2-propyl acetate 12 weight part drops in Scattered Kettle, open whipping device to stir, stirring velocity remains on 400r/min, open heating installation, Heating temperature is set to 95 DEG C;
Drop into above-mentioned E-03 epoxy resin 15 weight part got ready while stirring, E-01 epoxy resin 12 weight part, writing time and temperature is started when temperature rises to 90 DEG C, every 30 minutes records once, after recording three times, observe resin whether to dissolve completely, if do not dissolve completely, then extend heating with churning time until resin dissolves completely;
Heating installation is closed after resin dissolves completely, remaining propylene glycol monomethyl ether 10 weight part is dropped in Scattered Kettle, and drop into above-mentioned dimethylbenzene 8.9 weight part got ready, stir cooling, after temperature is lower than 80 DEG C, drop into above-mentioned butylated phenolic resin 4 weight part got ready, benzene is for aminoresin 4 weight part, flow agent BYK-3100.1 weight part, epoxy phosphate ester 4 weight part, stirs after 15 minutes and carries out detection sampling; With the mixed solvent (1:1) of dimethylbenzene and propylene glycol monomethyl ether as viscosity modulating solvent; Detect qualified after filter and package.
The product performance obtained after test are as following table (3):
Table (3).
Claims (10)
1. an aluminium vessel internal surface coating composition, it is characterized in that: comprise epoxy resin, modified phenolic resins liquid, aminoresin, mixed dibasic acid fat, propylene glycol kind solvent, propylene glycol lipid solvent, aromatic solvent, flow agent, adhesion promoter, the weight percent of each component is epoxy resin: modified phenolic resins liquid: aminoresin: mixed dibasic acid fat: propylene glycol kind solvent: propylene glycol lipid solvent: aromatic solvent: flow agent: adhesion promoter=15 ~ 30:2 ~ 6:3 ~ 6:2 ~ 12:15 ~ 35:5 ~ 20:5 ~ 15:0.1 ~ 0.3:0.5 ~ 5.
2. aluminium vessel internal surface coating composition according to claim 1, it is characterized in that: described epoxy resin is wherein a kind of or its combination of E-03 epoxy resin, E-01 epoxy resin, and in described modified phenolic resins liquid, modified phenolic resins accounts for 60 ~ 80%.
3. aluminium vessel internal surface coating composition according to claim 2, it is characterized in that: described modified phenolic resins is thermoset butylated phenolic resin, wherein the type of resol is p-tert-butylphenol or bisphenol A phenolic resin.
4. aluminium vessel internal surface coating composition according to claim 1, it is characterized in that: described propylene glycol kind solvent is propylene glycol monomethyl ether, propylene-glycol ethyl ether, propandiol butyl ether wherein a kind of or its composition, described propylene glycol lipid solvent is 1-Methoxy-2-propyl acetate, propandiol butyl ether acetic ester wherein a kind of or its composition.
5. aluminium vessel internal surface coating composition according to claim 1, is characterized in that: described aminoresin be benzene for aminoresin, described adhesion promoter is phosphoric acid derivatives, epoxy phosphate ester or polyester phosphate.
6. aluminium vessel internal surface coating composition according to claim 1, is characterized in that: described aluminium vessel internal surface coating composition also comprises the toughened resin that weight percent is 5% ~ 10%.
7. the preparation method of aluminium vessel internal surface coating composition according to claim 1, is characterized in that, comprise the following steps:
(1), drop into weight percent be 2 ~ 12% mixed dibasic acid fat, 10 ~ 25% propylene glycol kind solvent, 5 ~ 20% propylene glycol lipid solvent in Scattered Kettle, open whipping device to stir, stirring velocity remains on 400 ~ 500r/min, open heating installation, Heating temperature is set to 95 DEG C.
(2) drop into 15 ~ 30% epoxy resin, while stirring, the toughened resin of 0 ~ 10%, start writing time and temperature when temperature is raised to 90 DEG C, carried out once record every 30 minutes, Keep agitation 100 minutes.
(3), detect resin whether dissolve completely, do not dissolve completely, extend heating, churning time until resin dissolves completely.
(4), confirm that resin dissolves completely after, close heating installation, drop into the propylene glycol kind solvent of 5% ~ 10%, the aromatic solvent of 5% ~ 15%; Leave standstill, naturally cooling, after temperature is lower than 80 DEG C, dropping into weight percent is the modified phenolic resins liquid of 2% ~ 6%, aminoresin, the flow agent of 0.1% ~ 1%, the adhesion promoter of 0.5% ~ 3% of 3% ~ 6%, stirs after 15-20 minute and carries out sampling detection.
(5), detect qualified after, filter and package.
8. the preparation method of aluminium vessel internal surface coating composition according to claim 7, it is characterized in that: propylene glycol kind solvent input in step (1) is propylene glycol monomethyl ether and propylene-glycol ethyl ether, wherein the weight percent of propylene glycol monomethyl ether and propylene-glycol ethyl ether is 1:0 ~ 0:1, and input propylene glycol lipid solvent is 1-Methoxy-2-propyl acetate.
9. the preparation method of aluminium vessel internal surface coating composition according to claim 8, it is characterized in that: propylene glycol kind solvent input in step (4) is propylene glycol monomethyl ether, aromatic solvent is dimethylbenzene, aminoresin is that benzene is for aminoresin, modified phenolic resins liquid is butylated phenolic resin solution, and adhesion promoter is selected from phosphoric acid derivatives, epoxy phosphate ester, polyester phosphate one wherein.
10. the preparation method of aluminium vessel internal surface coating composition according to claim 9, is characterized in that: the solids content of described butylated phenolic resin liquid is 60 ~ 80%.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108286358A (en) * | 2018-02-13 | 2018-07-17 | 石狮华宝新材料工程有限公司 | Composite heavy corrosion protection structure and construction technology for thermal power plant titanium plate chimney |
| CN110194922A (en) * | 2019-06-27 | 2019-09-03 | 佛山市顺德区顺峰药品包装材料有限公司 | A kind of oiliness inside courtyard that aluminium soft tube packaging inner coating uses |
| CN110330857A (en) * | 2019-06-11 | 2019-10-15 | 清远慧谷新材料技术有限公司 | Food packaging metallic paint and preparation method thereof |
| CN112126318A (en) * | 2020-09-29 | 2020-12-25 | 肇庆亿图化工有限公司 | Novel bisphenol A-free in-tank anticorrosive paint for metal packaging container |
| CN116376405A (en) * | 2023-05-07 | 2023-07-04 | 广州希森美克新材料科技股份有限公司 | Thermosetting antistatic anticorrosive paint containing metal and metal oxide particles and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286358A (en) * | 2018-02-13 | 2018-07-17 | 石狮华宝新材料工程有限公司 | Composite heavy corrosion protection structure and construction technology for thermal power plant titanium plate chimney |
| CN108286358B (en) * | 2018-02-13 | 2024-03-19 | 石狮华宝新材料工程有限公司 | Composite heavy-duty corrosion-resistant structure for titanium plate chimney of thermal power plant and construction process |
| CN110330857A (en) * | 2019-06-11 | 2019-10-15 | 清远慧谷新材料技术有限公司 | Food packaging metallic paint and preparation method thereof |
| CN110194922A (en) * | 2019-06-27 | 2019-09-03 | 佛山市顺德区顺峰药品包装材料有限公司 | A kind of oiliness inside courtyard that aluminium soft tube packaging inner coating uses |
| CN112126318A (en) * | 2020-09-29 | 2020-12-25 | 肇庆亿图化工有限公司 | Novel bisphenol A-free in-tank anticorrosive paint for metal packaging container |
| CN116376405A (en) * | 2023-05-07 | 2023-07-04 | 广州希森美克新材料科技股份有限公司 | Thermosetting antistatic anticorrosive paint containing metal and metal oxide particles and preparation method thereof |
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