CN104371489A - Epoxy novolac coating for inner walls of food cans and preparation method of epoxy novolac coating - Google Patents
Epoxy novolac coating for inner walls of food cans and preparation method of epoxy novolac coating Download PDFInfo
- Publication number
- CN104371489A CN104371489A CN201410624586.9A CN201410624586A CN104371489A CN 104371489 A CN104371489 A CN 104371489A CN 201410624586 A CN201410624586 A CN 201410624586A CN 104371489 A CN104371489 A CN 104371489A
- Authority
- CN
- China
- Prior art keywords
- epoxy resin
- epoxy
- food
- preparation
- lining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- 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
- C09D7/20—Diluents or solvents
-
- 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
Abstract
The invention discloses an epoxy novolac coating for the inner walls of food cans and a preparation method of the epoxy novolac coating, and relates to the technical field of food can coatings. The epoxy novolac coating is prepared from the following components in percentage by mass: 40% of 6009 epoxy resin solution, 10% of phenolic resin, 1% of linear epoxy resin and 49% of mixed solvent; the preparation method comprises the following steps: firstly synthesizing solid 6009 epoxy resin from 128 epoxy resin, bisphenol A and a catalyst, secondly adding the mixed solvent to prepare the 6009 epoxy resin solution, and then adding the phenolic resin and the linear epoxy resin to prepare the target coating. The preparation method of the epoxy novolac coating is simple in production procedure, low in energy consumption and low in production cost; tested by the USEPA5021 method, a film sample of the coating contains no methylbenzene and the content of xylene in the film sample is 5.2ppm, and the film sample conforms to standard requirements.
Description
Technical field:
The present invention relates to canned food technical field of coatings, be specifically related to a kind of Food Can Lining epoxy-phenol resin paint and preparation method thereof.
Background technology:
In recent years, tomato-sauce has become one of seasonings conventional in people's daily life.But the tomato-sauce in tomato-sauce can not only has strongly-acid corrosion to can inwall, also there is a kind of deep-etching factor, cause its erosion resistance to film to require higher, and the anti-strongly-acid coating sold in the market can not meet this requirement.
Current, epoxy novolac class coating is still Food Can Lining coating and uses one of more kind.Its production technique is simple, and use field extensive, be not only applicable to multiple kinds of canned food, as acidic food can, fruit and vegetable, sulphur food, meat, fish etc., also can be used for can decoratees outward, is cheap and good-quality gilt.Therefore, our company determines the Food Can Lining epoxy-phenol resin paint that a kind of erosion resistance of exploitation is strong.
Summary of the invention:
Technical problem to be solved by this invention is to provide Food Can Lining epoxy-phenol resin paint that a kind of production art is simple, erosion resistance is strong and preparation method thereof.
Technical problem to be solved by this invention adopts following technical scheme to realize:
A kind of Food Can Lining epoxy-phenol resin paint, is made up of the component of following mass percent:
Described mixed solvent is made up of ethylene glycol monobutyl ether, pimelinketone, epoxy resin and propyl carbinol.
A preparation method for Food Can Lining epoxy-phenol resin paint, comprises the steps:
The synthesis of (1) 6009 epoxy resin: add 128 epoxy resin, dihydroxyphenyl propane and catalyzer in proportion in reactor under stirring, mixture is heated to 180 ~ 190 DEG C of reaction 45 ~ 90min, and reaction terminates rear cooling, pulverizes to obtain solid 6009 epoxy resin;
The preparation of (2) 6009 epoxy resin solutions: add solid 6009 epoxy resin and mixed solvent prepared by step (1) under stirring in proportion in reactor, then reflux dewatering 60min, insulation 2h after mixture being heated to 130 DEG C, finally be cooled to 40 DEG C, discharging, filter and obtain 6009 epoxy resin solutions;
(3) synthesis of coating: add 6009 epoxy resin solutions, resol, linear epoxy resin and mixed solvent prepared by step (2) under stirring in proportion in reactor, mixture is fully uniformly mixed, and finally cools, filters and obtain target coating.
In described step (1), the mass ratio of 128 resins, dihydroxyphenyl propane and catalyzer is 72:27:11, and catalyzer is imidazoles.
In described step (2), the mass ratio of solid 6009 epoxy resin and mixed solvent is 2:3.
In described step (3), the mass ratio of 6009 epoxy resin solutions, resol, linear epoxy resin and mixed solvent is 400:100:10:490, and the epoxy equivalent (weight) of linear epoxy resin is 20000 ~ 25000.
Described Food Can Lining epoxy-phenol resin paint not only can be used as severe corrosive tomato-sauce can liner, also can be used as the antiacid and anti-sulphur lacquer of Food Can Lining.
The invention has the beneficial effects as follows: production process of the present invention is simple, it is low to consume energy, production cost is low; And do not contain toluene according in the sample after USEPA5021 method test display coating film forming, and xylene content is 5.2ppm, conformance with standard requirement, security is high.
Embodiment:
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
The preparation method of Food Can Lining epoxy-phenol resin paint of the present invention comprises the steps:
The synthesis of (1) 6009 epoxy resin: add 720kg128 epoxy resin, 270kg dihydroxyphenyl propane and 110kg imidazoles in 500L reactor, mixture is heated to 180 ~ 190 DEG C of reaction 45 ~ 90min, after reaction terminates, cool, pulverize to obtain 6009 epoxy resin.
The preparation of (2) 6009 epoxy resin solutions: add 400kg solid 6009 epoxy resin and 600kg mixed solvent in 1000L reactor, reflux dewatering 60min, insulation 2h after mixture being heated to 130 DEG C, after being finally cooled to 40 DEG C, 6009 epoxy resin solutions are filtered and obtain in discharging.
(3) synthesis of coating: add 6009 epoxy resin solutions, 100kg resol, 10kg linear epoxy resin and 490kg mixed solvent prepared by 400kg step (2) in 1000L reactor, mixture is fully uniformly mixed, and finally cools, filters and obtain target coating.
According to US EPA5021 method, entrust An Mute company to carry out Performance Detection in the sample after this coating film forming, detected result is as shown in table 1.
Table 1US EPA5021 method test result gathers
| Test event | Testing tool | MQL | Result |
| Toluene | HS-GC-MS | 1mg/kg | N.D. |
| Dimethylbenzene | HS-GC-MS | 1mg/kg | 5.2 |
Find after tested, not containing toluene in the sample after this coating film forming, and xylene content is 5.2ppm, far below the 100ppm of China's limit value, meets national standard.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. a Food Can Lining epoxy-phenol resin paint, is characterized in that, is made up of the component of following mass percent:
。
2. a kind of Food Can Lining epoxy-phenol resin paint according to claim 1, is characterized in that: described mixed solvent is made up of ethylene glycol monobutyl ether, pimelinketone, epoxy resin and propyl carbinol.
3. a preparation method for Food Can Lining epoxy-phenol resin paint, is characterized in that, comprises the steps:
The synthesis of (1) 6009 epoxy resin: add 128 epoxy resin, dihydroxyphenyl propane and catalyzer in proportion in reactor under stirring, mixture is heated to 180 ~ 190 DEG C of reaction 45 ~ 90min, and reaction terminates rear cooling, pulverizes to obtain solid 6009 epoxy resin;
The preparation of (2) 6009 epoxy resin solutions: add solid 6009 epoxy resin and mixed solvent prepared by step (1) under stirring in proportion in reactor, then reflux dewatering 60min, insulation 2h after mixture being heated to 130 DEG C, finally be cooled to 40 DEG C, discharging, filter and obtain 6009 epoxy resin solutions;
(3) synthesis of coating: add 6009 epoxy resin solutions, resol, linear epoxy resin and mixed solvent prepared by step (2) under stirring in proportion in reactor, mixture is fully uniformly mixed, and finally cools, filters and obtain target coating.
4. the preparation method of a kind of Food Can Lining epoxy-phenol resin paint according to claim 3, it is characterized in that: in described step (1), the mass ratio of 128 resins, dihydroxyphenyl propane and catalyzer is 72:27:11, catalyzer is imidazoles; In step (2), the mass ratio of solid 6009 epoxy resin and mixed solvent is 2:3; In step (3), the mass ratio of 6009 epoxy resin solutions, resol, linear epoxy resin and mixed solvent is 400:100:10:490, and the epoxy equivalent (weight) of linear epoxy resin is 20000 ~ 25000.
5. a kind of Food Can Lining epoxy-phenol resin paint according to claim 1, is characterized in that: not only can be used as severe corrosive tomato-sauce can liner, also can be used as the antiacid and anti-sulphur lacquer of Food Can Lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624586.9A CN104371489A (en) | 2014-11-07 | 2014-11-07 | Epoxy novolac coating for inner walls of food cans and preparation method of epoxy novolac coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624586.9A CN104371489A (en) | 2014-11-07 | 2014-11-07 | Epoxy novolac coating for inner walls of food cans and preparation method of epoxy novolac coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104371489A true CN104371489A (en) | 2015-02-25 |
Family
ID=52550698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410624586.9A Pending CN104371489A (en) | 2014-11-07 | 2014-11-07 | Epoxy novolac coating for inner walls of food cans and preparation method of epoxy novolac coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104371489A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007284541A (en) * | 2006-04-14 | 2007-11-01 | Kansai Paint Co Ltd | Water-based coating composition |
| CN102585658A (en) * | 2012-02-08 | 2012-07-18 | 蚌埠飞浦科技包装材料有限公司 | Formula of coating special for environment-friendly canned food and manufacture method thereof |
| CN102585657A (en) * | 2012-02-08 | 2012-07-18 | 蚌埠飞浦科技包装材料有限公司 | Recipe and manufacture method of white food can inner wall paint |
| CN103436139A (en) * | 2013-08-14 | 2013-12-11 | 中华制漆（深圳）有限公司 | Sulphur-resisting acid-proof food can inner wall paint and preparation method thereof |
-
2014
- 2014-11-07 CN CN201410624586.9A patent/CN104371489A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007284541A (en) * | 2006-04-14 | 2007-11-01 | Kansai Paint Co Ltd | Water-based coating composition |
| CN102585658A (en) * | 2012-02-08 | 2012-07-18 | 蚌埠飞浦科技包装材料有限公司 | Formula of coating special for environment-friendly canned food and manufacture method thereof |
| CN102585657A (en) * | 2012-02-08 | 2012-07-18 | 蚌埠飞浦科技包装材料有限公司 | Recipe and manufacture method of white food can inner wall paint |
| CN103436139A (en) * | 2013-08-14 | 2013-12-11 | 中华制漆（深圳）有限公司 | Sulphur-resisting acid-proof food can inner wall paint and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104087125B (en) | A kind of ocean Epoxy zinc-rich anticorrosive powdery paint and preparation method thereof | |
| CN103409035B (en) | A kind of canned food tailor-(made) coating and preparation method thereof | |
| CN104693919A (en) | Polyvinyl acetal insulating paint and preparation method thereof | |
| CN103483983B (en) | A kind of epoxy zinc rich primer and preparation method thereof | |
| CN102876176A (en) | Coating used for heat exchanger and its preparation method | |
| CN103992523A (en) | Food-grade anti-corrosion lining rubber plate and preparation method thereof | |
| CN105602391A (en) | Antirust coating | |
| CN103059692B (en) | Epoxy powder coating for coating magnet ring and preparation method of epoxy powder coating | |
| CN103421427A (en) | Anticorrosion phenol-formaldehyde resin compressive coating | |
| CN105754454A (en) | Electric insulation anti-corrosion powder coating | |
| CN103305092A (en) | Anticorrosive coating and preparation method thereof | |
| CN104371489A (en) | Epoxy novolac coating for inner walls of food cans and preparation method of epoxy novolac coating | |
| CN104448709B (en) | Masterbatch material for stationery and preparation method thereof | |
| CN102993915A (en) | 3PP (Propene Polymer) anti-corrosion epoxy powder primer and preparation method thereof | |
| CN104140510B (en) | The preparation method of rosin modified phenolic resin | |
| CN104371490A (en) | Primer coating for inner wall of food can and preparation method of primer coating | |
| CN106752723A (en) | A kind of water-base epoxy antiseptic varnish and preparation method thereof | |
| CN106479448A (en) | A kind of conduction oil and the method preparing this conduction oil | |
| CN104371494A (en) | Aluminum powder mold release paint and preparation method thereof | |
| CN104371493A (en) | EPC type single-component epoxy phenolic aldehyde paint and preparation method thereof | |
| CN104479476A (en) | Method for preparing conductive anticorrosive coating from acrylic acid | |
| CN106117479A (en) | Utilize the manufacture method of bisphenol-A by-product synthetic epoxy resin firming agent | |
| CN102675571B (en) | Organic amine compound modification is utilized to prepare low content of free formaldehyde phenolic aldehyde resin art | |
| CN102775731A (en) | Glue solution for preparing FR-4 (fiberglass board) copper-clad plate and preparation method | |
| CN103450809A (en) | Method for preparing rosin derivative for pigment industry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |