CN1854217A - Conductive epoxy resin lawn pigment and coating process thereof - Google Patents
Conductive epoxy resin lawn pigment and coating process thereof Download PDFInfo
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- CN1854217A CN1854217A CN 200510025368 CN200510025368A CN1854217A CN 1854217 A CN1854217 A CN 1854217A CN 200510025368 CN200510025368 CN 200510025368 CN 200510025368 A CN200510025368 A CN 200510025368A CN 1854217 A CN1854217 A CN 1854217A
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Abstract
An electrostatic-conducted epoxy-resin terrace coating and its coating process are disclosed. The coating consists of finish and primer, finish uses conductive short-staple slurry with excellent conductive and dispersing performances, and surface and volume resistances reach to 5*10(4)-1*10(6)omega, furthermore, finish utilizes composite accessory system with disperser, leveling agent, antifoaming agent and rheological agent; primer uses conductive graphite powder, and surface and volume resistances reach to 10(3)-10(4)omega. The process is carried out by pasting conductive copper foil at an interval 1m*2m, building an electrostatic dissipative leakage layer, connecting a grounding device by1000m2 with grounding resistance<4omega and composing complete electrostatic leakage system. It's simple, convenient and has excellent and long-acting electrostatic-conducting effect.
Description
One, technical field:
The present invention relates to the building ground floor material, particularly disclose a kind of conductive epoxy resin lawn pigment coating, comprise finish paint, priming paint and coating process thereof, belong to coating class in the big class of chemistry.
Two, background technology:
Antistatic floor coatings is a kind of functional coating, and it can give terrace electroconductibility to eliminate a large amount of static charges gathered because of rubbing, avoids electrostatic influence production and causes the harm of accidents such as fire, blast.According to the industry standard SJ/T11294-2003 of the Ministry of Information industry " antistatic floor coatings general specification ", antistatic floor coatings is divided into finish paint and priming paint, wherein finish paint is divided into self-leveling antistatic floor coatings, common antistatic floor coatings and elasticity antistatic floor coatings again, and antistatic floor coatings is divided into again according to surface resistivity and volume resistance scope leads electrostatic (5 * 10
4～1 * 10
6Ω) with electrostatic dissipation type (1 * 10
6～1 * 10
9Ω).
The disclosed high solid antistatic epoxy floor paint of Chinese patent CN1594470A surface resistivity reaches 10
5～10
7Ω, apparent and good physical and chemical properties, but its first component solid content is 78～83% still contains 20% the organic volatile (VOCs) of having an appointment; The disclosed solvent-free antistatic epoxy floor paint solids content of Chinese patent CN1460699A is near 100%, but its surface resistivity is 1 * 10
6～1 * 10
9Ω does not reach and leads electrostatic (5 * 10
4～1 * 10
6Requirement Ω).At present, the anti-electrostatic class requirement of new and high technology industrial premises terraces such as electronics, microelectronics, communication, computer, precision instrument is more and more higher, and the requirement of National Environmental rules is also more and more tighter, and this development to antistatic floor coatings is had higher requirement.
Lead (preventing) static coating and be divided into eigenmode and mixed type, eigenmode static conductive coating performance is not good and cost is high, still in conceptual phase; What work in the mixed type static conductive coating mainly is conductive filler material.Conductive filler material commonly used comprises that metal is that filler, carbon are filler, burning system filler and complex conductive fillers etc.Metal is that filler exists and to cost an arm and a leg or shortcoming such as oxygen-proof property difference; Carbon is that filler also has problems such as oil-proofness, ornamental difference; Burning system filler conductive effect instability; Complex conductive fillers has certain influence owing to comprise harmful heavy metals such as tin, antimony, indium to environment.
For avoiding weak point of the prior art, the invention provides a kind of mixed type conductive epoxy resin lawn pigment top coat, priming paint and coating process, finish paint has used high, the easy dispersive conducting staple fiber slurry of novel electroconductibility, and surface resistivity and volume resistance reach 5 * 10
4～1 * 10
6Ω, priming paint have used the electrically conductive graphite pulvis, and surface resistivity and volume resistance reach 10
3～10
4Ω has used copper-foil conducting electricity during application, and connects a grounding device by per 1000 square metres, requires stake resistance less than 4 Ω, and what meet high request leads the application of static terrace; Select the composite assistant system that comprises dispersion agent, rheological agent, defoamer and flow agent in the finish paint for use, solved the problem of surface imperfection such as leading the static terrace paint easily plays loose colour, grows dim in construction, bubble, whirlpool preferably; The solids coatings height, organic volatile is few, helps environmental protection.
Three, summary of the invention:
At the deficiency on the prior art, Resins, epoxy terrace paint and coating process thereof that the present invention discloses a kind of production technique and equipment is simple, application convenient, lead the electrostatic efficiency excellence.
The present invention is achieved in that a kind of conductive epoxy resin lawn pigment coating, comprises finish paint and priming paint, it is characterized in that the composition of each component and weight percent (%) are as follows:
Finish paint first component: bisphenol A type epoxy resin E-51 45～60,
Filler 10～20,
Nonactive toughening deflocculating agent 3～5,
Wetting dispersing agent 0.3～0.6,
Rheological agent 0.1～0.2,
Defoamer 0.5～0.8,
Flow agent 0.6～1.0,
Conducting staple fiber slurry 8～12;
Finish paint second component: modification cycloaliphatic amines solidifying agent 100;
Described finish paint first, second set of dispense ratio is 4: 1;
Priming paint first component: bisphenol A type epoxy resin E-44 45～60,
Solvent 15～25,
Graphite pulvis 20～40;
Priming paint second component: aromatic amine solidifying agent 100;
Described priming paint first, second set of dispense ratio is 5: 1.
A kind of coating process of conductive epoxy resin lawn pigment coating, it is characterized in that: after priming on the base material, paste copper-foil conducting electricity on the priming paint surface by the interval of 1m * 2m again in the coating process, set up electrostatic dissipation and leak layer, and connect a grounding device by per 1000 square metres, form complete electrostatic leakage system.Described grounding resistance of transmission must be less than 4 Ω.
The height opposite of leading primary coat resistance value in the static terrace system is coated with conductivity and has direct influence, for guaranteeing that face is coated with surface resistivity and reaches 5 * 10
4～1 * 10
6Ω, the primary coat resistance value must reach 10
3～10
4Ω.The conductive filler material of priming paint adopts the electrically conductive graphite pulvis among the present invention, under suitable proportioning, can reach requirement.
Because the conductive epoxy resin lawn pigment coating system is comparatively complicated, face is coated with one-pass film-forming thickness 0.5～1.5mm, add the influence of construction substrate and envrionment temperature, humidity, surface imperfection such as the conductive epoxy resin lawn pigment top coat time occurs loose colour easily in construction, grows dim, bubble, whirlpool, influence decorative effect, therefore must select suitable composite assistant system: wetting dispersing agent, rheological agent, defoamer and flow agent.Compound wetting dispersing agent (the Dutch EFKA high molecular urethane EFKA4010 of company that used in the present invention's prescription, select a kind of among the mixture D EUCHEM 904S of Taiwan moral modest company polymeric carboxylic and modified polyorganosiloxane), rheological agent (the polyolefin-wax 4200-20 that Japanese nanmu originally changes into, select a kind of among the modified urea solution B YK405 of Germany Bi Ke company), defoamer (non-silicon based copolymer EFKA2720, select a kind of among polysiloxane compound DEUCHEM6800 and the polysiloxane solution BYK066) and flow agent (fluorine-carbon modified polyacrylic ester EFKA3777, no silicon nonionic acrylate copolymer L-1982, select a kind of among organically-modified polydimethylsiloxane Solution H X-3082 and the polyether-modified dimethylsiloxane copolymer solution B YK307) system, face is coated with apparent attractive in appearance, smoothly.
Also comprise pigment (titanium dioxide and chromoxide green), filler (selecting a kind of in water-ground limestone, the silica powder), reactive thinner aliphatic glycidyl ether (trade(brand)name AGE), nonactive toughening deflocculating agent (dibutyl phthalate and phenylcarbinol) in the finish paint first component prescription of the present invention.
Solvent in the priming paint first component of the present invention is the mixture of dimethylbenzene, propyl carbinol, respectively accounts for 50%.
Modification cycloaliphatic amines solidifying agent and aromatic amine solidifying agent in finish paint of the present invention, the priming paint component B are the commercially available prod, and the present invention is not described further.
Finish paint has used novel conducting staple fiber slurry among the present invention, has following advantage:
1, the conducting staple fiber slurry is to be pre-dispersed in the Resins, epoxy by metallic staple to form, and after the paint solidification film forming, fiber can form permanent electron channel, conductivity excellence in system.
2, conducting staple fiber slurry is dispersed in the system not to color of paint, paint film is apparent and physicochemical property constitutes influence, and the finish paint adjustable color is unrestricted, attractive coat, does not have a fiber of appearing substantially.
What the present invention led electrostatic epoxy flooring coating finish paint, priming paint and coating process leads electrostatic efficiency excellence, permanent, and face is coated with surface resistivity and volume resistance reaches 5 * 10
4～1 * 10
6Ω, the primary coat resistance value reaches 10
3～10
4Ω, and not influenced by temperature, humidity etc.; Coating surface is level and smooth, attractive in appearance, and is wear-resisting, withstand voltage, shock-resistant, and resistance to chemical attack, particularly alkaline resistance properties are good; Finish paint first component solids content is greater than 95%, and priming paint first component solids content is about 80%, and finish paint second component and priming paint second component solid content are 100% all, and organic volatile is few during coating decoration, helps environmental protection; Production technique and equipment are simple, and application is convenient, help suitability for industrialized production and apply.
Four, description of drawings:
Accompanying drawing is a conductive epoxy resin lawn pigment paint spraying technology level sectional view of the present invention.
Among the figure: 1, basal plane; 2, lead static priming paint; 3, copper-foil conducting electricity net; 4, lead the static screed; 5, lead the static finish paint.
Five, embodiment:
(1) production technique of conductive epoxy resin lawn pigment top coat of the present invention, priming paint is as follows:
1, finish paint first component:
A, take by weighing reactive thinner, nonactive toughening deflocculating agent, each analog assistant and part epoxy by formula ratio and add successively and disperse to stir in the cylinder, add the pigment and the filler of formula ratio then, high-speed stirring is even;
B, above-mentioned title complex is ground to fineness is not more than 60 μ m on three-roller, continue to add remaining Resins, epoxy, stir;
C, formula ratio conducting staple fiber slurry is dropped into above-mentioned system again under stirring at a slow speed, be uniformly dispersed;
D, filter and package and to obtain finish paint first component.
2, priming paint first component:
A, take by weighing Resins, epoxy, add the electrically conductive graphite pulvis and the mixed solvent of formula ratio, be uniformly dispersed by formula ratio;
B, packing can obtain priming paint first component.
(2) it is as follows that the present invention leads electrostatic epoxy flooring coating coating process:
1, will lead static priming paint first: after second component=5: 1 stirs, completely scrape substrate surface, be called basal plane 1, become and lead static priming paint 2 with scraper;
2, wait to lead static undercoat 2 dryings after, measure surface resistivity and the volume resistance lead static priming paint 2 and (require 10
4Ω is following), press the interval of 1m * 2m then and paste copper-foil conducting electricity, be called copper-foil conducting electricity net 3, to set up electrostatic dissipation and leak layer, and connect a grounding device by per 1000 square metres, stake resistance must be formed complete electrostatic leakage system less than 4 Ω;
3, will lead static priming paint first: the second component: quartz sand=furnishing that stirs was led the static mortar in 5: 1: 6, lead static priming paint 2 one to three times (concrete pass is decided on the engineering thickness requirement) with what scraper scraped completely on it that group has a copper-foil conducting electricity net 3, scraping an epoxy mortar gauge control is 1mm, becomes to lead static screed 4;
4, lead static screed 4 dryings after, polish, measure surface resistivity and the volume resistance lead static screed 4 and (require 10
4Ω is following), will lead static priming paint first: second component=stir at 5: 1, completely scrape with scraper and to lead the static screed 4 one times;
5, after the above-mentioned coating drying, point is filled a vacancy and is fallen into and hole, and with whole polishing of fine sand mulberry paper and dust suction cleaning, surface resistivity and the volume resistance of measuring coating (require 10
4Ω is following), will lead static finish paint first: second component=stir at 4: 1, carry out trowel with trowel and be coated with, use froth breaking cylinder froth breaking simultaneously, become and lead static finish paint 5.
Embodiment 1:
Prescription is: finish paint first component: Resins, epoxy E-51 55%, titanium dioxide 3%, chromoxide green 2%, silica powder 18%, reactive thinner AGE 6%, nonactive toughening deflocculating agent dibutyl phthalate 2%, phenylcarbinol 2%, wetting dispersing agent EFKA4010 0.5%, rheological agent BYK4050.1%, defoamer EFKA2720 0.6%, flow agent PERENOL F60 0.8%, conducting staple fiber slurry 10%; Priming paint first component: epoxy resin E-44 55%, dimethylbenzene 10%, propyl carbinol 10%, electrically conductive graphite pulvis 25%.After obtaining product by above-mentioned production technique, carry out application on insulation asbestos plate substrate surface by above-mentioned coating process.Behind the film curing, surface smoothing is attractive in appearance, no loose colour, grow dim, bubble and whirlpool phenomenon, this model surface resistivity of test is 7 * 10 after 48 hours
4Ω, volume resistance are 5 * 10
4Ω meets industry standard SJ/T11294-2003.
Embodiment 2:
Certain microelectronics factory Stall mill floor adopts conductive epoxy resin lawn pigment coating of the present invention and coating process to carry out application.Finish paint first component manufacture order is: Resins, epoxy E-51 550Kg, titanium dioxide 30Kg, chromoxide green 20Kg, silica powder 180Kg, reactive thinner AGE 60Kg, nonactive toughening deflocculating agent dibutyl phthalate 20Kg, phenylcarbinol 20Kg, wetting dispersing agent EFKA4010 5Kg, rheological agent BYK405 1Kg, defoamer EFKA2720 6Kg, flow agent EFKA3777 8Kg, conducting staple fiber slurry 100Kg; Priming paint first component manufacture order: epoxy resin E-44 550Kg, dimethylbenzene 100Kg, propyl carbinol 100Kg, electrically conductive graphite pulvis 250Kg.After obtaining product by above-mentioned production technique, carry out application by above-mentioned coating process.Behind the film curing, surface smoothing is attractive in appearance, no loose colour, grow dim, bubble and whirlpool phenomenon, this terrace surface resistance of test is 1 * 10 after 48 hours
5Ω, volume resistance are 6 * 10
4, meet industry standard SJ/T11294-2003.
Embodiment 3:
Prescription is: finish paint first component: Resins, epoxy E-51 58%, titanium dioxide 2%, chromoxide green 4%, water-ground limestone 14%, reactive thinner AGE 5.5%, nonactive toughening deflocculating agent dibutyl phthalate 2%, phenylcarbinol 1.5%, wetting dispersing agent DEUCHEM904S 0.4%, rheological agent 4200-20 0.1%, defoamer DEUCHEM6800 0.7%, flow agent L-1982 0.8%, conducting staple fiber slurry 11%; Priming paint first component: epoxy resin E-44 50%, dimethylbenzene 10%, propyl carbinol 10%, electrically conductive graphite pulvis 30%.After obtaining product by above-mentioned production technique, carry out application on insulation asbestos plate substrate surface by above-mentioned coating process.Behind the film curing, surface smoothing is attractive in appearance, no loose colour, grow dim, bubble and whirlpool phenomenon, this terrace surface resistance of test is 8 * 10 after 48 hours
4Ω, volume resistance are 7 * 10
4Ω meets industry standard SJ/T11294-2003.
Embodiment 4:
Certain computer factory second floor mill floor adopts conductive epoxy resin lawn pigment coating of the present invention and coating process to carry out application.Finish paint first component manufacture order is: Resins, epoxy E-51 580Kg, titanium dioxide 20Kg, chromoxide green 40Kg, water-ground limestone 140Kg, reactive thinner AGE 55Kg, nonactive toughening deflocculating agent dibutyl phthalate 20Kg, phenylcarbinol 15Kg, wetting dispersing agent DEUCHEM904S 4Kg, rheological agent 4200-20 1Kg, defoamer DEUCHEM6800 7Kg, flow agent L-1982 8Kg, conducting staple fiber slurry 110Kg; Priming paint first component manufacture order: epoxy resin E-44 500Kg, dimethylbenzene 100Kg, propyl carbinol 100Kg, electrically conductive graphite pulvis 300Kg.After obtaining product by above-mentioned production technique, carry out application by above-mentioned coating process.Behind the film curing, surface smoothing is attractive in appearance, no loose colour, grow dim, bubble and whirlpool phenomenon, this terrace surface resistance of test is 2 * 10 after 48 hours
5Ω, volume resistance are 8 * 10
4Ω meets industry standard SJ/T11294-2003.
Claims (5)
1. a conductive epoxy resin lawn pigment coating comprises finish paint and priming paint, it is characterized in that the composition of each component and weight percent (%) are as follows:
Finish paint first component: bisphenol A type epoxy resin E-51 45～60,
Pigment 5～10,
Filler 10～20,
Reactive thinner 5～8,
Nonactive toughening deflocculating agent 3～5,
Wetting dispersing agent 0.3～0.6,
Rheological agent 0.1～0.2,
Defoamer 0.5～0.8,
Flow agent 0.6～1.0,
Conducting staple fiber slurry 8～12;
Finish paint second component: modification cycloaliphatic amines solidifying agent 100;
Described finish paint first, second set of dispense ratio is 4: 1;
Priming paint first component: bisphenol A type epoxy resin E-44 45～60,
Solvent 15～25,
Graphite pulvis 20～40;
Priming paint second component: aromatic amine solidifying agent 100;
Described priming paint first, second set of dispense ratio is 5: 1;
Wherein: pigment: titanium dioxide, chromoxide green;
Filler: select a kind of in water-ground limestone, the silica powder;
Reactive thinner: aliphatic glycidyl ether;
Nonactive toughening deflocculating agent: dibutyl phthalate and phenylcarbinol;
Wetting dispersing agent: select a kind of in the mixture of high molecular urethane, polymeric carboxylic and modified polyorganosiloxane;
Rheological agent: select a kind of in polyolefin-wax, the modified urea solution;
Defoamer: select a kind of in non-silicon based copolymer, polysiloxane compound and the polysiloxane solution;
Flow agent: select a kind of in fluorine-carbon modified polyacrylic ester, no silicon nonionic acrylate copolymer, organically-modified polydimethylsiloxane solution and the polyether-modified dimethylsiloxane copolymer solution;
Solvent: dimethylbenzene, propyl carbinol respectively account for 50% mixture.
2. conductive epoxy resin lawn pigment coating according to claim 1 is characterized in that the weight percent (%) of each component is:
Finish paint first component: bisphenol A type epoxy resin E-51 55,
Pigment 5,
Filler 18,
Reactive thinner 6,
Nonactive toughening deflocculating agent 4,
Wetting dispersing agent 0.5,
Rheological agent 0.1,
Defoamer 0.6,
Flow agent 0.8,
Conducting staple fiber slurry 10;
Finish paint second component: modification cycloaliphatic amines solidifying agent 100;
Described finish paint first, second set of dispense ratio is 4: 1;
Priming paint first component: bisphenol A type epoxy resin E-44 55,
Solvent 20,
Graphite pulvis 25;
Priming paint second component: aromatic amine solidifying agent 100;
Described priming paint first, second set of dispense ratio is 5: 1.
3. conductive epoxy resin lawn pigment coating according to claim 1 is characterized in that the weight percent (%) of each component is:
Finish paint first component: bisphenol A type epoxy resin E-51 60,
Pigment 7,
Filler 10,
Reactive thinner 8,
Nonactive toughening deflocculating agent 5,
Wetting dispersing agent 0.3,
Rheological agent 0.2,
Defoamer 0.5,
Flow agent 1,
Conducting staple fiber slurry 8;
Finish paint second component: modification cycloaliphatic amines solidifying agent 100;
Described finish paint first, second set of dispense ratio is 4: 1;
Priming paint first component: bisphenol A type epoxy resin E-44 45,
Solvent 25,
Graphite pulvis 30;
Priming paint second component: aromatic amine solidifying agent 100;
Described priming paint first, second set of dispense ratio is 5: 1.
4. coating process by the conductive epoxy resin lawn pigment coating of each gained in the claim 1～3, it is characterized in that: after priming on the base material, paste copper-foil conducting electricity on the priming paint surface by the interval of 1m * 2m again in the coating process, set up electrostatic dissipation and leak layer, and connect a grounding device by per 1000 square metres, form complete electrostatic leakage system.
5. the coating process of conductive epoxy resin lawn pigment coating according to claim 4 is characterized in that: described grounding resistance of transmission must be less than 4 Ω.
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|---|---|---|---|
| CNB2005100253684A CN100506931C (en) | 2005-04-25 | 2005-04-25 | Conductive epoxy resin lawn pigment and coating process thereof |
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|---|---|---|---|
| CNB2005100253684A CN100506931C (en) | 2005-04-25 | 2005-04-25 | Conductive epoxy resin lawn pigment and coating process thereof |
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| CN100506931C CN100506931C (en) | 2009-07-01 |
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