CN109762317B - Packaging film special for etched foil and preparation method thereof - Google Patents
Packaging film special for etched foil and preparation method thereof Download PDFInfo
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- CN109762317B CN109762317B CN201811544060.4A CN201811544060A CN109762317B CN 109762317 B CN109762317 B CN 109762317B CN 201811544060 A CN201811544060 A CN 201811544060A CN 109762317 B CN109762317 B CN 109762317B
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Abstract
The invention relates to the technical field of corrosion foil, in particular to a special packaging film for corrosion foil and a preparation method thereof, wherein the special packaging film comprises the following raw materials in parts by weight: 55-65 parts of modified waterborne alkyd resin, 25-35 parts of ethylene-chlorotrifluoroethylene copolymer, 6-10 parts of nano carboxymethyl cellulose, 5-9 parts of modified rare earth, 3-6 parts of behenamide, 5-9 parts of guar gum and C53-6 parts of petroleum resin and 2-4 parts of methylcyclohexane. The water-based alkyd resin has good weather resistance but poor water resistance, so that the phenolic resin is adopted to modify the alkyd resin, the comprehensive performance of the alkyd resin is improved, the ethylene-chlorotrifluoroethylene copolymer has the characteristics of chemical reagent resistance, high mechanical strength and good heat resistance, and the nano carboxymethyl cellulose is used as an auxiliary material.
Description
Technical Field
The invention relates to the technical field of corrosion foil, in particular to a packaging film special for corrosion foil and a preparation method thereof.
Background
The foil corrosion process is electrified corrosion, generally comprises pretreatment, hole-forming corrosion, reaming corrosion and post-treatment, wherein the formation of uniformly distributed high-density tunnel holes with reasonable size on the surface of an aluminum foil is the key for obtaining high specific capacitance, the pretreatment mainly acts on removing oil stain, impurities and an oxidation film on the surface of the foil, improving the surface state and promoting the formation of uniformly distributed tunnel holes when the aluminum foil is subjected to hole-forming corrosion in the next step, the hole-forming corrosion acts on applying direct current to form initial tunnel holes with certain length and hole diameter on the surface of the aluminum foil, the reaming corrosion acts on further electrifying corrosion on the basis of the initial tunnel holes to further enlarge the hole diameter of the tunnel holes to the required size, the tunnel holes are prevented from being blocked by the oxidation film during formation, and high specific capacitance is obtained, the corrosion foil surface layer packaging film can improve the service life of the corrosion foil, and then the protection film has an important function.
The prior Chinese patent document (publication number: CN106273975B) discloses a parallel-opening polyester packaging film and a manufacturing method thereof, the film consists of an upper surface layer, a lower surface layer and a core layer, the core layer consists of 70-80% of fresh bright polyester chips and 20-30% of recycled chips, and the upper surface layer and the lower surface layer consist of 50-60% of fresh bright polyester chips and 40-50% of fresh silicon-containing chips.
Disclosure of Invention
The invention aims to provide a packaging film special for a corrosion foil and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a packaging film special for corrosion foil comprises the following raw materials in parts by weight:
55-65 parts of modified waterborne alkyd resin, 25-35 parts of ethylene-chlorotrifluoroethylene copolymer, 6-10 parts of nano carboxymethyl cellulose, 5-9 parts of modified rare earth, 3-6 parts of behenamide, 5-9 parts of guar gum and C53-6 parts of petroleum resin and 2-4 parts of methylcyclohexane.
The invention further comprises the following steps: the packaging film special for the corrosion foil comprises the following raw materials in parts by weight:
60-65 parts of modified waterborne alkyd resin, 28-35 parts of ethylene-chlorotrifluoroethylene copolymer, 8-10 parts of nano carboxymethyl cellulose, 7-9 parts of modified rare earth, 4-6 parts of behenamide, 7-9 parts of guar gum and C55-6 parts of petroleum resin and 3-4 parts of methylcyclohexane.
The invention further comprises the following steps: the packaging film special for the corrosion foil comprises the following raw materials in parts by weight:
60 parts of modified waterborne alkyd resin, 30 parts of ethylene-chlorotrifluoroethylene copolymer, 8 parts of nano carboxymethyl cellulose, 7 parts of modified rare earth, 4.5 parts of behenamide, 7 parts of guar gum and C54.5 parts of petroleum resin and 3 parts of methylcyclohexane.
The invention further comprises the following steps: the preparation method of the modified waterborne alkyd resin comprises the steps of mixing the waterborne alkyd resin and ethanol according to the weight ratio of 1:2, adding the mixture into a reaction kettle, then adding the phenolic resin, reacting at the temperature of 75-85 ℃ for 1-2h, then adding the nano-cellulose and the graphene oxide, stirring at the rotating speed of 150-250r/min, stirring for 30-40min, finally adding the divinylbenzene, and continuing to react for 20-30 min.
The invention further comprises the following steps: the mass ratio of the water-based alkyd resin to the phenolic resin to the nano-cellulose to the graphene oxide is 9 (3-5) to 1 (1-3).
The invention further comprises the following steps: the mass ratio of the water-based alkyd resin to the phenolic resin to the nano-cellulose to the graphene oxide is 9:4:2: 1.
The invention further comprises the following steps: the modified rare earth is rare earth lanthanum which is treated by steam for 1-2h, and the steam pressure is 3-5 MPa.
The invention also provides a method for preparing the packaging film special for the corrosion foil, which comprises the following steps:
step one, modified waterborne alkyd resin, ethylene-chlorotrifluoroethylene copolymer, nano carboxymethyl cellulose, modified rare earth, behenamide, guar gum and C5Sequentially adding petroleum resin and methylcyclohexane into a high-speed mixer, increasing the stirring speed to 1000-1200r/min, and stirring for 40-50min to obtain a composite material A;
and step two, adding the composite material A into a double-screw extruder for extrusion, wherein the extrusion temperature is 170-180 ℃, and then cooling to obtain the packaging film special for the corrosion foil.
Compared with the prior art, the invention has the following beneficial effects:
the water-based alkyd resin has good weather resistance but poor water resistance, so that the phenolic resin is adopted to modify the alkyd resin, the comprehensive performance of the alkyd resin is improved, the ethylene-chlorotrifluoroethylene copolymer has the characteristics of chemical reagent resistance, high mechanical strength and good heat resistance, and the nano carboxymethyl cellulose is used as an auxiliary materialThe performance of the packaging film can be obviously improved, the added behenamide can further improve the performance of the packaging film, and guar gum and C5The petroleum resin can ensure that the raw materials are connected more closely and matched with each other, so that the performances of the packaging film, such as weather resistance, and the like, are obviously improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Example 1:
the packaging film special for the corrosion foil comprises the following raw materials in parts by weight:
55 parts of modified waterborne alkyd resin, 25 parts of ethylene-chlorotrifluoroethylene copolymer, 6 parts of nano carboxymethyl cellulose, 5 parts of modified rare earth, 3 parts of behenamide, 5 parts of guar gum and C53 parts of petroleum resin and 2 parts of methylcyclohexane.
The preparation method of the modified waterborne alkyd resin comprises the steps of mixing the waterborne alkyd resin and ethanol according to the weight ratio of 1:2, adding the mixture into a reaction kettle, then adding the phenolic resin, reacting at 75 ℃ for 1 hour, then adding the nano-cellulose and the graphene oxide, stirring at a rotating speed of 150r/min for 30min, finally adding the divinylbenzene, and continuing to react for 20 min.
The mass ratio of the water-based alkyd resin, the phenolic resin, the nano-cellulose and the graphene oxide substance in the embodiment is 9:3:1: 1.
The modified rare earth of the embodiment is rare earth lanthanum which is treated by steam for 1h, and the steam pressure is 3 MPa.
The method for preparing the packaging film special for the corrosion foil comprises the following steps:
step one, modified water-based alkyd resin, ethylene-chlorotrifluoroethylene copolymer and nano carboxymethyl fiber are mixedVitamin, modified rare earth, behenamide, guar gum and C5Sequentially adding petroleum resin and methylcyclohexane into a high-speed mixer, increasing the stirring speed to 1000r/min, and stirring for 40min to obtain a composite material A;
and step two, adding the composite material A into a double-screw extruder for extrusion, wherein the extrusion temperature is 170 ℃, and then cooling to obtain the packaging film special for the corrosion foil.
Example 2:
the packaging film special for the corrosion foil comprises the following raw materials in parts by weight:
60 parts of modified waterborne alkyd resin, 35 parts of ethylene-chlorotrifluoroethylene copolymer, 10 parts of nano carboxymethyl cellulose, 9 parts of modified rare earth, 6 parts of behenamide, 9 parts of guar gum and C56 parts of petroleum resin and 4 parts of methylcyclohexane.
The preparation method of the modified waterborne alkyd resin comprises the steps of mixing the waterborne alkyd resin and ethanol according to the weight ratio of 1:2, adding the mixture into a reaction kettle, then adding the phenolic resin, reacting at 85 ℃ for 2 hours, then adding the nano-cellulose and the graphene oxide, stirring at a rotating speed of 250r/min for 30-40min, finally adding the divinylbenzene, and continuing to react for 30 min.
The mass ratio of the water-based alkyd resin, the phenolic resin, the nano-cellulose and the graphene oxide substance in the embodiment is 9:5:3: 1.
The modified rare earth of the embodiment is rare earth lanthanum which is treated by steam for 2h, and the steam pressure is 5 MPa.
The method for preparing the packaging film special for the corrosion foil comprises the following steps:
step one, modified waterborne alkyd resin, ethylene-chlorotrifluoroethylene copolymer, nano carboxymethyl cellulose, modified rare earth, behenamide, guar gum and C5Sequentially adding petroleum resin and methylcyclohexane into a high-speed mixer, increasing the stirring speed to 1200r/min, and stirring for 50min to obtain a composite material A;
and step two, adding the composite material A into a double-screw extruder for extrusion, wherein the extrusion temperature is 180 ℃, and then cooling, thereby obtaining the packaging film special for the corrosion foil.
Example 3:
the packaging film special for the corrosion foil comprises the following raw materials in parts by weight:
60 parts of modified waterborne alkyd resin, 30 parts of ethylene-chlorotrifluoroethylene copolymer, 8 parts of nano carboxymethyl cellulose, 7 parts of modified rare earth, 4.5 parts of behenamide, 7 parts of guar gum and C54.5 parts of petroleum resin and 3 parts of methylcyclohexane.
The preparation method of the modified waterborne alkyd resin comprises the steps of mixing the waterborne alkyd resin and ethanol according to the weight ratio of 1:2, adding the mixture into a reaction kettle, then adding the phenolic resin, reacting at the temperature of 75-85 ℃ for 1.5 hours, then adding the nano-cellulose and the graphene oxide, stirring at the rotating speed of 200r/min for 35min, finally adding the divinylbenzene, and continuing to react for 25 min.
The mass ratio of the water-based alkyd resin, the phenolic resin, the nano-cellulose and the graphene oxide substance in the embodiment is 9:4:2: 1.
The modified rare earth of the embodiment is rare earth lanthanum which is treated by steam for 1.5h, and the steam pressure is 4 MPa.
The method for preparing the packaging film special for the corrosion foil comprises the following steps:
step one, modified waterborne alkyd resin, ethylene-chlorotrifluoroethylene copolymer, nano carboxymethyl cellulose, modified rare earth, behenamide, guar gum and C5Sequentially adding petroleum resin and methylcyclohexane into a high-speed mixer, increasing the stirring speed to 1050r/min, and stirring for 45min to obtain a composite material A;
and step two, adding the composite material A into a double-screw extruder for extrusion, wherein the extrusion temperature is 175 ℃, and then cooling to obtain the packaging film special for the corrosion foil.
Comparative example 1:
in contrast to example 3, the waterborne alkyd was unmodified.
Comparative example 2:
in contrast to example 3, no behenamide was added.
The results of the performance tests of the packaging films prepared in examples 1 to 3 and comparative examples 1 to 2 are as follows
| Water resistance | Heat resistance | |
| Example 3 | No appearance change after 100h | No change in performance after 60h |
| Comparative example 1 | Deterioration after 88h | Deterioration after 47h |
| Comparative example 2 | Deterioration after 82h | Deterioration after 43h |
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The packaging film special for the corrosion foil is characterized by comprising the following raw materials in parts by weight:
55-65 parts of modified waterborne alkyd resin, 25-35 parts of ethylene-chlorotrifluoroethylene copolymer, 6-10 parts of nano carboxymethyl cellulose, 5-9 parts of modified rare earth, 3-6 parts of behenamide, 5-9 parts of guar gum and C53-6 parts of petroleum resin and 2-4 parts of methylcyclohexane;
the preparation method of the modified waterborne alkyd resin comprises the steps of mixing the waterborne alkyd resin and ethanol according to the weight ratio of 1:2, adding the mixture into a reaction kettle, then adding the phenolic resin, reacting at the temperature of 75-85 ℃ for 1-2h, then adding the nano-cellulose and the graphene oxide, stirring at the rotating speed of 150-250r/min, stirring for 30-40min, finally adding the divinylbenzene, and continuing to react for 20-30 min;
the mass ratio of the water-based alkyd resin to the phenolic resin to the nano-cellulose to the graphene oxide is 9 (3-5) to 1 (1-3).
2. The packaging film special for etched foil as claimed in claim 1, wherein the packaging film special for etched foil comprises the following raw materials in parts by weight:
60-65 parts of modified waterborne alkyd resin, 28-35 parts of ethylene-chlorotrifluoroethylene copolymer, 8-10 parts of nano carboxymethyl cellulose, 7-9 parts of modified rare earth, 4-6 parts of behenamide, 7-9 parts of guar gum and C55-6 parts of petroleum resin and 3-4 parts of methylcyclohexane.
3. The packaging film special for etched foil as claimed in claim 1, wherein the packaging film special for etched foil comprises the following raw materials in parts by weight:
60 parts of modified waterborne alkyd resin, 30 parts of ethylene-chlorotrifluoroethylene copolymer, 8 parts of nano carboxymethyl cellulose, 7 parts of modified rare earth, 4.5 parts of behenamide, 7 parts of guar gum and C54.5 parts of petroleum resin and 3 parts of methylcyclohexane.
4. The packaging film special for etched foil as claimed in claim 1, wherein the mass ratio of the water-based alkyd resin, the phenolic resin, the nano-cellulose and the graphene oxide is 9:4:2: 1.
5. The packaging film special for etched foil as claimed in claim 1, wherein the modified rare earth is rare earth lanthanum which is treated by steam for 1-2h, and the steam pressure is 3-5 MPa.
6. A method for preparing the packaging film for etched foils according to any of claims 1 to 5, comprising the steps of:
step one, modified waterborne alkyd resin, ethylene-chlorotrifluoroethylene copolymer, nano carboxymethyl cellulose, modified rare earth, behenamide, guar gum and C5Sequentially adding petroleum resin and methylcyclohexane into a high-speed mixer, increasing the stirring speed to 1000-1200r/min, and stirring for 40-50min to obtain a composite material A;
and step two, adding the composite material A into a double-screw extruder for extrusion, wherein the extrusion temperature is 170-180 ℃, and then cooling to obtain the packaging film special for the corrosion foil.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811544060.4A CN109762317B (en) | 2018-12-17 | 2018-12-17 | Packaging film special for etched foil and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811544060.4A CN109762317B (en) | 2018-12-17 | 2018-12-17 | Packaging film special for etched foil and preparation method thereof |
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| CN109762317A CN109762317A (en) | 2019-05-17 |
| CN109762317B true CN109762317B (en) | 2021-02-02 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103562289A (en) * | 2011-05-20 | 2014-02-05 | 宝洁公司 | Films of polymer-wax compositions |
| CN106469582A (en) * | 2015-08-18 | 2017-03-01 | 中国科学院上海微***与信息技术研究所 | A kind of electrocondution slurry of graphene-containing and preparation method thereof |
| CN106750223A (en) * | 2016-11-10 | 2017-05-31 | 广东科迪新材料科技有限公司 | A kind of polyurethane-modified aqueous alkide resin of Graphene and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX2011001815A (en) * | 2008-08-18 | 2011-09-01 | Cook Composites & Polymers | Resin and paint coating compositions comprising highly esterified polyol polyesters with two or more pairs of conjugated double bonds. |
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- 2018-12-17 CN CN201811544060.4A patent/CN109762317B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103562289A (en) * | 2011-05-20 | 2014-02-05 | 宝洁公司 | Films of polymer-wax compositions |
| CN106469582A (en) * | 2015-08-18 | 2017-03-01 | 中国科学院上海微***与信息技术研究所 | A kind of electrocondution slurry of graphene-containing and preparation method thereof |
| CN106750223A (en) * | 2016-11-10 | 2017-05-31 | 广东科迪新材料科技有限公司 | A kind of polyurethane-modified aqueous alkide resin of Graphene and preparation method thereof |
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