CN104130660A - Three-proofing covering paint and preparation method thereof - Google Patents
Three-proofing covering paint and preparation method thereof Download PDFInfo
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- CN104130660A CN104130660A CN201410361576.0A CN201410361576A CN104130660A CN 104130660 A CN104130660 A CN 104130660A CN 201410361576 A CN201410361576 A CN 201410361576A CN 104130660 A CN104130660 A CN 104130660A
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Abstract
The invention relates to the technical field of light conduction devices and especially relates to three-proofing covering paint and a preparation method thereof. The three-proofing covering paint comprises, by mass, 0.5-1.5% of maleic resin, 1-3% of n-butyl acetace, 0.8-2.6% of diacetone alcohol, 0.8-2% of turpentine, 15-45% of xylene, 0.02-0.1% of a composite drier and 50-80% of styrenated alkyd resin. The three-proofing covering paint has low benzene content, is environmentally friendly and safe, has fast curing time and comprehensive protection effects and resists severe environment influence. A circuit plate using the three-proofing covering paint has excellent performances of flame retardation, high/low temperature resistance, solvent resistance, moisture prevention and dust prevention. The preparation method has simple processes, can be operated easily and is conducive to industrial application.
Description
Technical field
The present invention relates to paint technology field, relate in particular to a kind of three anti-coating varnishes and preparation method thereof.
Background technology
Under current conditions, as environment such as chemistry, vibrations, Gao Chen, salt fog, humidity and high temperature, wiring board may produce the problems such as burn into softens, is out of shape, goes mouldy, and causes wiring board circuit to break down.Three anti-coating varnishes are coated on the surface of wiring board, form the anti-protective membrane of one deck three, and three prevent referring to protection against the tide, anti-salt fog, mildew-resistant.Such as for example, containing chemical substance (: fuel, refrigerant etc.), vibrations, moisture, salt spray, moist and high temperature in the situation that; do not use the wiring board of three anti-coating varnishes to be corroded, mould-growth and generation short circuit etc.; cause circuit to break down; use three anti-coating varnishes holding circuit to avoid infringement; thereby improve the reliability of wiring board; increase its safety coefficient, and ensure its work-ing life.In addition, because three anti-coating varnishes can prevent electric leakage, therefore allow higher power and nearer printed board spacing, thereby can meet the object of miniaturization of components.
But three anti-coating varnish benzol contents of the prior art are up to more than 50%, benzol content is high, and set time is slower, and under the impact of severe environment, and fire-retardant, high-low temperature resistant and the solvent resistance of electronic circuit board are poor.
Summary of the invention
The present invention provides a kind of three anti-coating varnishes and preparation method thereof for overcoming above-mentioned defect; it is low that this three anti-coating varnish has benzol content; Environmental Safety; set time is fast, has comprehensive provide protection, avoids under the impact of severe environment; make electronic circuit board there is fire-retardant, high-low temperature resistant, solvent resistance, protection against the tide, the superior performance such as dustproof; preparation method is simple, and easy handling is conducive to industrial applications.
For achieving the above object, the present invention adopts following technical scheme.
A kind of three anti-coating varnishes, comprise the raw material of following mass percent:
Malin's acid resin is to carry out addition reaction and irregular shape esterified with glycerine and that make with rosin and MALEIC ANHYDRIDE, faint yellow transparent solid. be dissolved in coal tar, ester class, vegetables oil, turps, be insoluble to alcohols. this resin lighter color, light resistance is strong, be difficult for yellowing, good with the intermiscibility of nitro-cotton, the paint film being made by it, intensity is large, dry rear smooth.
N-butyl acetate, be called again n-butyl acetate, CAS:123-86-4, relative density (20 DEG C) 0.8807, zero pour-73.5 DEG C, 126.114 DEG C of boiling points, 33 DEG C of flash-points (opening cup), (closed-cup) 27 DEG C, specific refractory power () 1.3941, viscosity (20 DEG C): 0.734mPa.s, surface tension (20 DEG C): 25.09mN/m, with immiscible organic solvents such as alcohol, ketone, ethers, compared with lower homologue, be insoluble in water, so be also difficult to hydrolysis.
Diacetone alcohol, CAS:123-42-2, proterties: colourless liquid, have agreeable odor, can with water, ethanol, ether and other immiscible organic solvents, relative density (d254) 0.9306, fusing point-44 DEG C, 167.9 DEG C of boiling points, refractive index (n20D) 1.4232,66 DEG C of flash-points, inflammable.
Turps is a kind of good organic solvent, is widely used in the industry such as paint, siccative, tackiness agent.Dimethylbenzene (dimethylbenzene) is colourless transparent liquid.There is the special odor of aromatic hydrocarbon.The mixture that system is made up of 45%～70% m-xylene, 15%～25% p-Xylol and three kinds of isomer of 10%～15% o-Xylol.Easily flow.Can with dehydrated alcohol, ether and other many immiscible organic solvents, water-soluble hardly.Relative density approximately 0.86.137～140 DEG C of boiling points.Refractive index (n? 20D) 1.4970.29 DEG C of flash-points.Inflammable, steam can form explosive mixture with air, and limits of explosion is about 1%～7% (volume).Micro-poison, median lethal concentration (rat sucks) 0.67%/4h.Irritant.
Styrene alkyd resin refers to the modified alkyd resin of making as properties-correcting agent with styrene monomer.This resin has the characteristic of polystyrene and Synolac bi-material concurrently, and the paint film obtaining during in order to painting has good water tolerance, chemical-resistant, electrical insulating property.Weathering resistance is slightly poor.Polystyrene is thermoplastic material, and therefore styrene alkyd resin paint film is to solvent sensitivity, and its sensitivity reduces with styrene content.Because copolymerization has consumed a part of pair of key, so the oxidation cross-linked degree of modified alkyd resin lowers, its degree increases with the increase of styrene content, but shorten time of drying.
Preferably, a kind of three anti-coating varnishes, comprise the raw material of following mass percent:
Wherein, also to include mass percent be 0.5～2% fluorescent material to described three anti-coating varnishes.Fluorescent material of the present invention is the conventional fluorescent material of three anti-paints, once be placed on below ultraviolet ray, the circuit card that is coated with three anti-coating varnishes of the present invention will variable color, so just for the inspection of wiring board provides convenience.
More preferably, a kind of three anti-coating varnishes, comprise the raw material of following mass percent:
Wherein, described composite drier is up to G-06 composite drier, fine jade CD-98 siccative difficult to understand.
Be the composite drier that Foochow produces up to rare earth material company limited up to G-06 composite drier, non-toxic efficient, can be used for all air drying type coatings, and the effect on the class coating such as alkyd, phenolic aldehyde, epoxy fat is best.Use separately up to board composite drier, just can on coating, reach the effect that original multiple siccative share together, replaced all traditional siccative including cobalt completely, even as the anti-skinning agent such as Resorcinol, methyl ethyl ketoxime is not all used.And be 1/10th of former conventional amount up to the consumption of board composite drier, both reduce cost, promote again the total quality of coating producer product.Use the coating products up to composite drier, can tackle European Union completely and detect.
Fine jade CD-98 siccative difficult to understand is the siccative that Changzhou Ao Qi siccative company limited produces, outward appearance: light yellow transparent liquid; Drying ability (10 DEG C, surface drying, h)≤8h; Fine jade CD-98 siccative product superiority difficult to understand is embodied in: 1, disposable input, and few, the obvious reduction paint of addition material cost, reaches desirable surface drying, does solid work requirement; 2, can all replace the various siccative such as cobalt, manganese, lead, zinc, calcium, simplify and add siccative production technique, technique is simple, and the operating time is short, urges dry successful, reduces fabrication error, stabilized product quality; 3, in product containing resolvability lead, chromium, every poisonous metals such as, tributes; 4, product is applicable to various Synolac, is especially adapted to beans acid oil and terylene waste resin; 5, compared with using traditional cobalt, manganese, lead, zinc, calcicoater, end paint production cost can fall.The technical indicator of fine jade CD-98 siccative difficult to understand: 1, outward appearance: the sticky uniform liquid of red-purple; 2, metal content: 20% ± 23, solvability: Quan Rong; 4, stability: without precipitate; 5, fineness um :≤18; 6, flash-point DEG C: >=30 (opening cup).
A preparation method for three anti-coating varnishes, comprises following procedure of processing:
Steps A, weighing: according to formula, take various raw materials, be placed into respectively in different containers;
Step B, batch mixing: all raw materials are put in the production bucket of dispersing apparatus;
Step C, dispersion: start dispersing apparatus, the raw material of producing in bucket is stirred, disperse 0.5～1.5 hour, raw material is mixed;
Step D, sampling inspection: the raw material extracting after processing through step C is tested, and conformance with standard enters into next step;
Step e, packaging: the raw material after processing through step D is packed, got product.
Wherein, between described steps A and described step B, also include steps A 0, fluorescent material is dropped in dimethylbenzene, stir, fluorescent material is fully dissolved.
Wherein, in described step B and described step C, described dispersing apparatus is explosion-proof dispersion machine.
Beneficial effect of the present invention is: it is low that three anti-coating varnishes of the present invention have benzol content; Environmental Safety; set time is fast; can natural air drying in normal temperature one hour; there is comprehensive provide protection; avoid under the impact of severe environment, make electronic circuit board there is fire-retardant, high-low temperature resistant, solvent resistance, protection against the tide, the superior performance such as dustproof.Three anti-coating varnishes of the present invention also have the performances such as superior insulation, protection against the tide, anticreep, shockproof, dustproof, protection against corrosion, protection from fumes, mildew-resistant, anti-aging, resistance to corona, various printed circuit board (PCB)s, assembling wiring board are played to the effect of comprehensive three anti-protections.The preparation method of three anti-coating varnishes of the present invention is simple, and easy handling is conducive to industrial applications.Three anti-coating varnishes of the present invention can be applicable to LED lamp, LED display, wiring board, lamp decoration, light fixture, switchboard, hybrid circuit board, electronic circuit board, computer control panel, boards and blocks of computers, flexible printed wiring board, instrument plate, semi-conductor, crystal route protection, Vehicle Electronic Control plate, security protection wiring board, frequency transformer and circuit card etc., are widely used.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, and this is preferred embodiment of the present invention.
Embodiment 1.
The anti-coating varnish of one three of the present embodiment, comprises the raw material of following mass percent:
Described composite drier is up to G-06 composite drier.
The preparation method of a kind of three anti-coating varnishes of the present embodiment, comprises following procedure of processing:
Steps A, weighing: according to formula, take various raw materials, be placed into respectively in different containers;
Step B, batch mixing: all raw materials are put in the production bucket of explosion-proof dispersion machine;
Step C, dispersion: start explosion-proof dispersion machine, the raw material of producing in bucket is stirred, disperse 0.5 hour, raw material is mixed;
Step D, sampling inspection: the raw material extracting after processing through step C is tested, and conformance with standard enters into next step;
Step e, packaging: the raw material after processing through step D is packed, got product.
Embodiment 2.
The anti-coating varnish of one three of the present embodiment, comprises the raw material of following mass percent:
Described composite drier is fine jade CD-98 siccative difficult to understand.
The preparation method of a kind of three anti-coating varnishes of the present embodiment, comprises following procedure of processing:
Steps A, weighing: according to formula, take various raw materials, be placed into respectively in different containers;
Step B, batch mixing: all raw materials are put in the production bucket of explosion-proof dispersion machine;
Step C, dispersion: start explosion-proof dispersion machine, the raw material of producing in bucket is stirred, disperse 0.6 hour, raw material is mixed;
Step D, sampling inspection: the raw material extracting after processing through step C is tested, and conformance with standard enters into next step;
Step e, packaging: the raw material after processing through step D is packed, got product.
Embodiment 3.
The anti-coating varnish of one three of the present embodiment, comprises the raw material of following mass percent:
Described composite drier is up to G-06 composite drier.
The preparation method of a kind of three anti-coating varnishes of the present embodiment, comprises following procedure of processing:
Steps A, weighing: according to formula, take various raw materials, be placed into respectively in different containers;
Steps A 0, fluorescent material is dropped in dimethylbenzene, stir, fluorescent material is fully dissolved;
Step B, batch mixing: all raw materials are put in the production bucket of explosion-proof dispersion machine;
Step C, dispersion: start explosion-proof dispersion machine, the raw material of producing in bucket is stirred, disperse 0.8 hour, raw material is mixed;
Step D, sampling inspection: the raw material extracting after processing through step C is tested, and conformance with standard enters into next step;
Step e, packaging: the raw material after processing through step D is packed, got product.
Embodiment 4.
The anti-coating varnish of one three of the present embodiment, comprises the raw material of following mass percent:
Described composite drier is fine jade CD-98 siccative difficult to understand.
The preparation method of a kind of three anti-coating varnishes of the present embodiment, comprises following procedure of processing:
Steps A, weighing: according to formula, take various raw materials, be placed into respectively in different containers;
Steps A 0, fluorescent material is dropped in dimethylbenzene, stir, fluorescent material is fully dissolved;
Step B, batch mixing: all raw materials are put in the production bucket of explosion-proof dispersion machine;
Step C, dispersion: start explosion-proof dispersion machine, the raw material of producing in bucket is stirred, disperse 1 hour, raw material is mixed;
Step D, sampling inspection: the raw material extracting after processing through step C is tested, and conformance with standard enters into next step;
Step e, packaging: the raw material after processing through step D is packed, got product.
Embodiment 5.
The anti-coating varnish of one three of the present embodiment, comprises the raw material of following mass percent:
Described composite drier is up to G-06 composite drier.
The preparation method of a kind of three anti-coating varnishes of the present embodiment, comprises following procedure of processing:
Steps A, weighing: according to formula, take various raw materials, be placed into respectively in different containers;
Steps A 0, fluorescent material is dropped in dimethylbenzene, stir, fluorescent material is fully dissolved;
Step B, batch mixing: all raw materials are put in the production bucket of explosion-proof dispersion machine;
Step C, dispersion: start explosion-proof dispersion machine, the raw material of producing in bucket is stirred, disperse 1.5 hours, raw material is mixed;
Step D, sampling inspection: the raw material extracting after processing through step C is tested, and conformance with standard enters into next step;
Step e, packaging: the raw material after processing through step D is packed, got product.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although the present invention has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (8)
1. three anti-coating varnishes, is characterized in that: the raw material that comprises following mass percent:
Malin's acid resin 0.5～1.5%
The positive fourth fat 1～3% of acetic acid
Diacetone alcohol 0.8～2.6%
Turps 0.8～2%
Dimethylbenzene 15～45%
Composite drier 0.02～0.1%
Styrene alkyd resin 50～80%.
2. a kind of three anti-coating varnishes according to claim 1, is characterized in that: the raw material that comprises following mass percent:
Malin's acid resin 0.8～1.2%
The positive fourth fat 1.5～2% of acetic acid
Diacetone alcohol 1～2%
Turps 1～1.5%
Dimethylbenzene 25～35%
Composite drier 0.05～0.1%
Styrene alkyd resin 60～70%.
3. a kind of three anti-coating varnishes according to claim 1 and 2, is characterized in that: it is 0.5～2% fluorescent material that described three anti-coating varnishes also include mass percent.
4. a kind of three anti-coating varnishes according to claim 3, is characterized in that: the raw material that comprises following mass percent:
Fluorescent material 0.8～1.5%
Malin's acid resin 0.5～1%
The positive fourth fat 1.5～2.5% of acetic acid
Diacetone alcohol 1～1.6%
Turps 1～1.5%
Dimethylbenzene 20～30%
Composite drier 0.06～0.1%
Styrene alkyd resin 65～75%.
5. a kind of three anti-coating varnishes according to claim 1, is characterized in that: described composite drier is up to G-06 composite drier, fine jade CD-98 siccative difficult to understand.
6. the preparation method of a kind of three anti-coating varnishes described in claim 1-5 any one, is characterized in that: comprise following procedure of processing:
Steps A, weighing: according to formula, take various raw materials, be placed into respectively in different containers;
Step B, batch mixing: all raw materials are put in the production bucket of dispersing apparatus;
Step C, dispersion: start dispersing apparatus, the raw material of producing in bucket is stirred, disperse 0.5～1.5 hour, raw material is mixed;
Step D, sampling inspection: the raw material extracting after processing through step C is tested, and conformance with standard enters into next step;
Step e, packaging: the raw material after processing through step D is packed, got product.
7. a kind of preparation method without benzene polish according to claim 6, is characterized in that: between described steps A and described step B, also include steps A 0, fluorescent material is dropped in dimethylbenzene, stir, fluorescent material is fully dissolved.
8. a kind of preparation method without benzene polish according to claim 6, is characterized in that: in described step B and described step C, described dispersing apparatus is explosion-proof dispersion machine.
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| CN201410361576.0A CN104130660A (en) | 2014-07-25 | 2014-07-25 | Three-proofing covering paint and preparation method thereof |
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| CN201410361576.0A CN104130660A (en) | 2014-07-25 | 2014-07-25 | Three-proofing covering paint and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104559620A (en) * | 2014-12-29 | 2015-04-29 | 英德市雅家涂料有限公司 | PU matte color repairing golden oil and preparation process thereof |
| CN105062296A (en) * | 2015-08-06 | 2015-11-18 | 惠州市安品新材料有限公司 | Preparation method of flame retardation hydroxyacid protection paint |
| CN106800870A (en) * | 2017-01-12 | 2017-06-06 | 芜湖航天特种电缆厂股份有限公司 | Cable insulation coating compositions and preparation method thereof |
| CN106811035A (en) * | 2017-01-12 | 2017-06-09 | 芜湖航天特种电缆厂股份有限公司 | Cable insulation coating compositions and preparation method thereof |
| CN106833315A (en) * | 2017-01-12 | 2017-06-13 | 芜湖航天特种电缆厂股份有限公司 | Cable insulation coating compositions and preparation method thereof |
| CN115491111A (en) * | 2022-09-21 | 2022-12-20 | 深圳市东方亮化学材料有限公司 | Preparation method of novel low-VOC air-drying type three-proofing paint |
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| CN102604585A (en) * | 2012-03-12 | 2012-07-25 | 深圳市兴时达科技产品有限公司 | Electronic protecting glue, and preparation method and application thereof |
| CN103305106A (en) * | 2012-03-13 | 2013-09-18 | 东莞市宝涵轻工科技有限公司 | Room temperature-curing environment-friendly anticorrosive coating for circuit board and preparation method thereof |
| CN103756544A (en) * | 2014-01-26 | 2014-04-30 | 一远电子科技有限公司 | Polyurethane three-proofing coating |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102604585A (en) * | 2012-03-12 | 2012-07-25 | 深圳市兴时达科技产品有限公司 | Electronic protecting glue, and preparation method and application thereof |
| CN103305106A (en) * | 2012-03-13 | 2013-09-18 | 东莞市宝涵轻工科技有限公司 | Room temperature-curing environment-friendly anticorrosive coating for circuit board and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104559620A (en) * | 2014-12-29 | 2015-04-29 | 英德市雅家涂料有限公司 | PU matte color repairing golden oil and preparation process thereof |
| CN105062296A (en) * | 2015-08-06 | 2015-11-18 | 惠州市安品新材料有限公司 | Preparation method of flame retardation hydroxyacid protection paint |
| CN106800870A (en) * | 2017-01-12 | 2017-06-06 | 芜湖航天特种电缆厂股份有限公司 | Cable insulation coating compositions and preparation method thereof |
| CN106811035A (en) * | 2017-01-12 | 2017-06-09 | 芜湖航天特种电缆厂股份有限公司 | Cable insulation coating compositions and preparation method thereof |
| CN106833315A (en) * | 2017-01-12 | 2017-06-13 | 芜湖航天特种电缆厂股份有限公司 | Cable insulation coating compositions and preparation method thereof |
| CN115491111A (en) * | 2022-09-21 | 2022-12-20 | 深圳市东方亮化学材料有限公司 | Preparation method of novel low-VOC air-drying type three-proofing paint |
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Application publication date: 20141105 |