CN104046193B - A kind of nano modification peelable type temporary protective coating and preparation method thereof - Google Patents
A kind of nano modification peelable type temporary protective coating and preparation method thereof Download PDFInfo
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- CN104046193B CN104046193B CN201410224650.4A CN201410224650A CN104046193B CN 104046193 B CN104046193 B CN 104046193B CN 201410224650 A CN201410224650 A CN 201410224650A CN 104046193 B CN104046193 B CN 104046193B
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Abstract
The invention belongs to coating technology, relate to a kind of nano modification peelable type temporary protective coating and preparation method thereof.This coating uses industrial mass-produced SBS resin to be base material; and be modified with nano silicon; it is aided with corrosion inhibiter, auxiliary agent and non-toluene solvent system; ensure that the strippable property of coating, short-term protective energy, weather resistance, environmental-protecting performance; the problem preferably solving steel easy-to-rust in a short time, it is possible to provide provisional protection for surfaces such as aluminium, titanium material, composites.Institute's invention product raw material is easy to get, preparation technology simple, it is convenient to construct.This coating weight part proportioning is, SBS resin 10～25, nano silicon 1～6, corrosion inhibiter 1～5, wetting dispersing agent 1～3, solvent 65～85.It provides the benefit that: strippable property is excellent, the most overall stripping.Coating does not results in injury to body surface, and does not stay any residue at body surface after removing membrane removal layer.Temporary protective is excellent: ground non-corroding.Excellent weather resistance and hard and application property are excellent.
Description
Technical field
The invention belongs to coating technology, relate to a kind of nano modification peelable type temporary protective coating and preparation method thereof.
Background technology
The effect of strippable property temporary protective coating be coated on be not required to processing metal and nonmetallic surface to protect workpiece,
Have applied range, to material surface without particular/special requirement, good operational environment, film forming is relatively thin, good in economic efficiency, be easy to promote and
The feature utilized.It is of many uses, comes into one's own in aircraft manufacturing, instrument, instrument, machinery, electronics, automobile and other industries, in U.S.
State, Japan and some countries of Europe are studied application widely.
It is presently used for the erosion of solvent-borne type strippable anticorrosive to seal the film forming matter of film up for safekeeping and mainly have polyethylene, polystyrene, polychlorostyrene second
Alkene, crosses ammonia ethylene etc., but coating barrier property is not so good, it is impossible to meeting the long term had not only hindered oxygen when sealing up for safekeeping but also the wanting of damp proof insulation
Ask.And there is striping difficulty, price is high, to shortcomings such as environmental requirement are strict.China's Coating Market low-and-medium-grade products is superfluous, part
Expensive goods is under-supply, and demand presents diversification situation, before research and development high-performance strippable plastics has wide market
Scape.
Nano material has the property not available for many macroscopic materials, adds nanoparticle, can change in coating
The mechanical property of kind coating and antiseptic property.But owing to nanoparticle size is little, there is great specific surface area and surface energy, receive
The small-size effect of rice corpuscles is allowed to relatively big with resin polarity difference, makes nano paint reunite in preparation and last handling process existing
As aggravation.Realize nanoparticle stable dispersion in coating and storage, become one of key factor affecting coating property.One
As use nanoparticle surface process, to coating add auxiliary agent, carry out at the multiple method such as high-speed stirred, ultrasound wave dispersion
Reason.
The patent of application number CN201210299750.4 relates to a kind of Stripable paint, and described Stripable paint is by following
Component is by weight: polyoxyethylene 8 stearate ether 5-9 part, superchlorinated polyvinyl chloride resin 9-13 part, cumyl peroxide
8-15 part, ethyl acetate 7-19 part, pentachlorodiphenyl 2-10 part, butyl acetate 4-9 part, aluminium paste 5-11 part.The present invention is more existing
Technology is compared, and acidproof heat-proof is higher, and peelable.But the present invention applies superchlorinated polyvinyl chloride resin, metal substrate is had one
Fixed harmful effect.
The selected theses acrylic acid of " development of environment-friendly type protective strip coating " (electroplate and cover with paint, lacquer, colour wash, etc., 2011,30 (4)) changes
Property organic siliconresin is main film forming matter, and being aided with polyisobutylene, SBS resin and phenolic resin carries out physical modification, adds reinforcement
Material, other auxiliary agents and the mixed solvent of carbonate-containing, prepare environment-friendly type protective strip coating.Application result shows, this painting
Material film peel strength is 500N/m, and hot strength 5MPa, after milling, glued membrane is prone to divest, and etch ratio is 0.3～0.5.Once
Gluing, without leakage erosion after continuous milling repeatedly in the NaOH solution of 300g/L.The material of this research is mainly used in chemistry milling, and
Non-atmospheric environment, also without weather resistance.
Summary of the invention
It is an object of the invention to: propose a kind of peelable functional, and there is the nanometer of certain antiseptic power and weatherability
Modified peelable type temporary protective coating and preparation method thereof.
The technical scheme is that this coating is by SBS resin, nano silicon, corrosion inhibiter, wetting dispersing agent and molten
Agent form, the ratio range of its raw material is by weight: SBS resin 10～25, nano silicon 1～6, corrosion inhibiter 1～
5, wetting dispersing agent 1～3, solvent 65～85；Described solvent is made up of butyl acetate Ketohexamethylene, and its weight part ratio is 1:1；
Preparation method is, after being dissolved by resin, adds other raw material, mix homogeneously, is ground to fineness and is less than 30 μm, is then sonicated
20min, makes uniform stripping lacquer.
The present invention has the advantage that and beneficial effect,
1, strippable property is excellent: form 30 μm～100 μm coatings, i.e. easily overall stripping after this coating application.Coating is to object table
Face does not results in injury, and does not stay any residue at body surface after removing membrane removal layer.
2, temporary protective is excellent: this coating is dried, through C250 steel 10d salt spray test, ground non-corroding.
3, excellent weather resistance and hard: this coating is after artificial accelerated aging 500h, and composite rating is 0 grade.
4, application property is excellent: can brush or aerial spraying, is completely dried after coating 4h at normal temperatures.
Detailed description of the invention
Peelable type temporary protective coating is one-component coating.The preparation method of this coating is, after being dissolved by resin, adds it
Its raw material, mix homogeneously, it is ground to fineness and is less than 30 μm, be then sonicated 20min, make uniform stripping lacquer.
The preparation method of organosilicon coating as described above, its preparation process is as follows:
1, dissolving resin: SBS resin is dissolved in appropriate mixed solvent；
2, dispensing: weigh other material, joins in SBS resin solution, and stirs；
3, grind: the slip addition sand mill after stirring is ground, is co-mulled and made into 2～3 times, at process of lapping
In, remaining solvent is added step-wise in grinding charge material；
4, supersound process: the material after grinding, supersound process 20min, obtains final products, test package.
Embodiment 1:
Coating is made up of SBS resin, nano silicon, corrosion inhibiter, wetting dispersing agent and solvent, and the proportioning of its raw material is pressed
Weight part ratio is: SBS resin 15, nano silicon 4, corrosion inhibiter 2, wetting dispersing agent 2, solvent 77；Described solvent is by second
Acid butyl ester Ketohexamethylene forms, and its weight part ratio is 1:1.Concrete weight is as shown in the table:
| Title material | Specification | Weight |
| SBS resin | Technical grade | 150kg |
| Nano silicon | Technical grade | 40kg |
| Corrosion inhibiter (BTA) | Technical grade | 20kg |
| Wetting dispersing agent (BYK103) | Technical grade | 20kg |
| Butyl acetate | Technical grade | 385kg |
| Ketohexamethylene | Technical grade | 385kg |
Concrete preparation process is as follows:
1, dissolving resin: SBS resin is dissolved in appropriate mixed solvent；
2, dispensing: weigh other material, joins in SBS resin solution, and stirs；
3, grind: the slip addition sand mill after stirring is ground, is co-mulled and made into 2～3 times, at process of lapping
In, remaining solvent is added step-wise in grinding charge material；
4, supersound process: the material after grinding, supersound process 20min, obtains final products, test package.
Embodiment 2:
Coating is made up of SBS resin, nano silicon, corrosion inhibiter, wetting dispersing agent and solvent, and the proportioning of its raw material is pressed
Weight part ratio is: SBS resin 20, nano silicon 2, corrosion inhibiter 2, wetting dispersing agent 1, solvent 75；Described solvent is by second
Acid butyl ester Ketohexamethylene forms, and its weight part ratio is 1:1.Concrete weight is as shown in the table:
| Title material | Specification | Weight |
| SBS resin | Technical grade | 200kg |
| Nano silicon | Technical grade | 20kg |
| Corrosion inhibiter (polynary amine type vapour phase inhibitor) | Technical grade | 20kg |
| Wetting dispersing agent (BYK110) | Technical grade | 10kg |
| Butyl acetate | Technical grade | 375kg |
| Ketohexamethylene | Technical grade | 375kg |
Concrete preparation process is as follows:
1, dissolving resin: SBS resin is dissolved in appropriate mixed solvent；
2, dispensing: weigh other material, joins in SBS resin solution, and stirs；
3, grind: the slip addition sand mill after stirring is ground, is co-mulled and made into 2～3 times, at process of lapping
In, remaining solvent is added step-wise in grinding charge material；
4, supersound process: the material after grinding, supersound process 20min, obtains final products, test package.
Embodiment 3:
Coating is made up of SBS resin, nano silicon, corrosion inhibiter, wetting dispersing agent and solvent, and the proportioning of its raw material is pressed
Weight part ratio is: SBS resin 23, nano silicon 2, corrosion inhibiter 1, wetting dispersing agent 2, solvent 73；Described solvent is by second
Acid butyl ester Ketohexamethylene forms, and its weight part ratio is 1:1.Concrete weight is as shown in the table:
| Title material | Specification | Weight |
| SBS resin | Technical grade | 230kg |
| Nano silicon | Technical grade | 20kg |
| In corrosion inhibiter (imidazoline corrosion inhibitor) | Technical grade | 10kg |
| Wetting dispersing agent (BYK103) | Technical grade | 20kg |
| Butyl acetate | Technical grade | 365kg |
| Ketohexamethylene | Technical grade | 365kg |
Concrete preparation process is as follows:
1, dissolving resin: SBS resin is dissolved in appropriate mixed solvent；
2, dispensing: weigh other material, joins in SBS resin solution, and stirs；
3, grind: the slip addition sand mill after stirring is ground, is co-mulled and made into 2～3 times, at process of lapping
In, remaining solvent is added step-wise in grinding charge material；
4, supersound process: the material after grinding, supersound process 20min, obtains final products, test package.
Embodiment 1, embodiment 2 and embodiment 3 coating overall performance are as follows:
| Sequence number | Pilot project | Measured result |
| 1 | Paint film appearance | Uniformly, smooth |
| 2 | Non-volatile content, % | 21～27 |
| 3 | Drying time, 23 DEG C ± 2 DEG C, h | 4 |
| 4 | Fracture strength, MPa | ≥10 |
| 5 | Elongation at break, % | ≥400 |
| 6 | Resistance to water, (23 DEG C ± 2 DEG C), 24h | Paint film non-corrosive, non-foaming, do not peel off |
| 7 | Lower temperature resistance ,-20 DEG C ± 2 DEG C, 4h | Paint film is non-foaming, do not peel off |
| 8 | Salt fog resistance, 500h | Paint film non-corrosive, non-foaming, do not peel off |
Note: upper project described in table is all measured by the pertinent regulations of GB.
Although examples detailed above has been described for the present invention, but this description does not means that and is construed as limiting, retouching with reference to the present invention
After stating, for person skilled in the art, it is clear that disclosed example can be carried out various correction.Respectively
Revise as kind within each falling within scope of the presently claimed invention.
Claims (1)
1. a nano modification peelable type temporary protective coating, it is characterised in that this coating by SBS resin, nano silicon,
Corrosion inhibiter, wetting dispersing agent and solvent composition, the ratio range of its raw material is by weight: SBS resin 10～25, nanometer two
Silicon oxide 1～6, corrosion inhibiter 1～5, wetting dispersing agent 1～3, solvent 65～85；Described solvent is by butyl acetate Ketohexamethylene group
Becoming, its weight part ratio is 1:1；Preparation method is, after being dissolved by resin, adds other raw material, mix homogeneously, is ground to fineness little
In 30 μm, it is then sonicated 20min, makes uniform stripping lacquer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410224650.4A CN104046193B (en) | 2014-05-26 | 2014-05-26 | A kind of nano modification peelable type temporary protective coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410224650.4A CN104046193B (en) | 2014-05-26 | 2014-05-26 | A kind of nano modification peelable type temporary protective coating and preparation method thereof |
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| Publication Number | Publication Date |
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| CN104046193A CN104046193A (en) | 2014-09-17 |
| CN104046193B true CN104046193B (en) | 2016-08-24 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US10689524B2 (en) | 2015-12-03 | 2020-06-23 | Caterpillar Inc. | Corrosion preventative film |
| CN115216184A (en) * | 2022-03-21 | 2022-10-21 | 芜湖伦比轴承有限公司 | Strippable protective adhesive for bearing phosphating shielding and preparation method thereof |
| CN116004075A (en) * | 2023-02-02 | 2023-04-25 | 大连科琳连化新材料科技有限公司 | Solvent type chemical milling protective coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8575235B2 (en) * | 2009-06-12 | 2013-11-05 | Industrial Technology Research Institute | Removable hydrophobic composition, removable hydrophobic coating layer and fabrication method thereof |
| CN102827537B (en) * | 2012-09-15 | 2014-12-17 | 合肥华清方兴表面技术有限公司 | Aqueous normal temperature curing peelable paint and preparation method of paint |
| CN102925046A (en) * | 2012-11-09 | 2013-02-13 | 徐州市水性漆厂 | Water-soluble stripping nano paint and preparation method thereof |
| CN103214903A (en) * | 2013-03-27 | 2013-07-24 | 北京鸿业润升科技有限公司 | Peelable nano-grade decontamination coating |
| CN103740226B (en) * | 2013-12-20 | 2016-01-13 | 南车长江车辆有限公司 | A kind of strippable protective coating |
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