CN103289547B - The low contamination rubber roll fluorocarbon coating of a kind of conduction and manufacture method thereof - Google Patents
The low contamination rubber roll fluorocarbon coating of a kind of conduction and manufacture method thereof Download PDFInfo
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- CN103289547B CN103289547B CN201210049192.6A CN201210049192A CN103289547B CN 103289547 B CN103289547 B CN 103289547B CN 201210049192 A CN201210049192 A CN 201210049192A CN 103289547 B CN103289547 B CN 103289547B
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Abstract
The present patent application provides a kind of conduction low contamination rubber roll fluorocarbon coating, two kinds of components of A, B that described coating is 3～8: 1 by mass ratio form, wherein, it is as described below that in A component, each composition accounts for the quality percentage composition of A component: the fluorocarbon resin that contains hydroxyl in molecular structure: 50～80%, conductive black powder: 1～5%, flatting silica: 2～9%, cured powder: 1～6%, auxiliary agent: 1～5%, solvent: 15～40%, wherein, the hydroxy radical content in fluorocarbon resin accounts for 1.5～2.5% of fluorocarbon resin quality; B component is aliphatic polymeric isocyanate curing agent, and wherein isocyanate group content accounts for 12～19.6% of aliphatic polymeric isocyanate quality; The present patent application also provides the preparation method of above-mentioned coating. Described coating, rubber roll coating surface has the function of transmitting electric charge, can effectively reduce the gathering of electrostatic charge and the rising of electrostatic potential, spray painting is on the rubber roll of printer, photo not bleeding bright in luster, the colour contamination printed, definition is good, and rubber roll is gone through 20,000 accelerated aging tests without extremely.
Description
Technical field
The present patent application relates to a kind of coating and manufacture method thereof, relates in particular to a kind of conduction for printer lowStain rubber roll fluorocarbon coating and manufacture method thereof, belong to technical field of coatings.
Background technology
For the coating on printer rubber roller surface, require there is suitable coefficient of friction and under normal temperature, high temperature all notThe performance of sticky colour band. At present, for the fluorocarbon coating on printer rubber roller surface, for two component curing type fluorine carbon is coated withMaterial, because this pair of component curing type fluorocarbon coating do not have conductive compositions, itsElectric conductivity is very poor, and in use, electrostatic charge cannot conduct electricity by rubber roll coating printer, tends toThere is the sticky China ink of rubber roll and adhere to the situation of impurity powder on paper, cause the ill effects such as sticky colour band, have a strong impact onPrinting effect.
This just need to provide one to have excellent conductive performance to having proposed in the industry, and can prevent that printer rubber roller is stained withThe requirement of dirty new coating.
Summary of the invention
The present patent application is the above-mentioned shortcoming in order to overcome prior art, provides one not reduce rubber roll and paperCoefficient of friction, surface has conduction and electrostatic-proof function, and under normal temperature or certain high temperature all sticky colour band,Be applicable to the low contamination rubber roll of conduction fluorocarbon coating of printer and preparation method thereof.
An object of the present patent application is to provide the low contamination rubber roll of above-mentioned conduction fluorocarbon coating:
Specifically, the low contamination rubber roll of described conduction fluorocarbon coating is two kinds of 3～8: 1 A, B by mass ratioComponent forms,
1, in A component each composition to account for the quality percentage composition of A component as described below: in molecular structure, containThe fluorocarbon resin of hydroxyl: 50～80%, conductive carbon black powder: 1～5%, flatting silica: 2～9%, curedPowder: 1～6%, auxiliary agent: 1～5%, solvent: 15～40%, wherein, the hydroxyl in fluorocarbon resinBase content accounts for 1.5～2.5% of fluorocarbon resin quality;
2, B component is aliphatic polymeric isocyanate curing agent, and wherein to account for aliphatic poly different for isocyanate group content12～19.6% of cyanate quality.
Further, described A component comprises the various compositions of following quality percentage composition: in molecular structure, contain hydroxylThe fluorocarbon resin of base: 65～71%, conductive carbon black powder: 2.5～4.5%, flatting silica: 2～7%, cured powder: 2～5%,Auxiliary agent: 1～3%, solvent: 15～25%, wherein, the hydroxy radical content in fluorocarbon resin accounts for fluorocarbon resin quality1.5～2.5％。
Further, described flatting silica is the synthesis gas aerosil particle through organic process.
Further, described cured powder is that polyethylene differentiation is cured.
Further, described auxiliary agent is defoamer, levelling agent, Ricinate with 1: 0.8～2: 1～3 ratioThe mixture that example is mixed.
Further, described levelling agent comprises polysiloxane compound, polyether-modified dimethylsilaneCopolymer or fluorine-carbon modified dimethyl polysiloxane copolymer.
Further, described Ricinate is that molecular weight is lower than 5000 daltonian unsaturated polynary carboxylicsThe mixture of acid polymer and organosiloxane copolymer, polybasic carboxylic acid polymer and organosilicon in this mixtureThe mixed proportion of siloxane copolymers is 8: 2.
Further, described solvent comprises n-butyl acetate, 1-Methoxy-2-propyl acetate, cyclohexanone, diformazanThe mixture of one or more of benzene.
Another object of the present patent application is to provide the preparation method of the low contamination rubber roll of above-mentioned conduction fluorocarbon coating:
Specifically, the preparation method of the low contamination rubber roll of described conduction fluorocarbon coating comprises following step:
1, the preparation of A component comprises two processes:
1) the first process is for preparing black conductive mill base: according to the mass ratio of A component formula, by 1/3Quantitative fluorocarbon resin put in the middle of the container of appointment, add successively Ricinate, cured powder,1/3 solvent and conductive carbon black powder, under the dispersion machine of 1200～1800rpm rotating speed,High speed dispersion 20～40min at the temperature of 18～25 DEG C, then takes out and inserts three-roller grinding,During to fineness≤30 μ m, take out for subsequent use;
2) the second process is: according to the mass ratio of A component formula, in the container requiring, add in regulationEntering remaining 2/3 fluorocarbon resin, flatting silica, residue auxiliary agent and the first process preparesBlack conductive mill base; Under the dispersion machine of 1200～1800rpm rotating speed, the temperature of 18～25 DEG CThe lower high speed dispersion 20～40min of degree, until then fineness≤30 μ m arrives dispersion machine reduction of speed300～800rpm,, disperses than the solvent that adds remaining 2/3 according to A component prescription qualityAfter 10～20min, after sampling Detection is qualified, with 150～200 eye mesh screens filtrations, meteringPackaging;
2, the proportioning that A, B component are 3～8: 1 by quality mixes, and after slaking 10～20min, uses.
The low contamination rubber roll of conduction fluorocarbon coating described in the present patent application, the various composition Jun Kejing city in its componentSell acquisition:
GK570, GK550, GK500 etc. that fluorocarbon resin can adopt Daikin company to produce, orThe K-700 that adopts Japanese Di Aisheng (DIC) company to produce, wherein one or both such as K-704, theseIn the molecular structure of fluorocarbon resin, contain hydroxyl, hydroxy radical content between 1.5%～2.5% (wt%), can with B groupDivide contained isocyanate group generation cross-linking and curing reaction.
The conductive carbon black powder that conductive carbon black powder can adopt Shenzhen Dong great Lai Chemical Co., Ltd. to produce.
Flatting silica adopts the synthesis gas aerosil particle through organic process, as: W. R. Grace & CoED30, the OK500 of Degussa company etc.
Cured powder adopts polyethylene micropowderization cured, the Polyfluo150 of as bright in Mike micro mist company, three leaf companies of the U.S.ShamrockS-232 etc.
Auxiliary agent is the mixture of defoamer, levelling agent, Ricinate, matches well with 1: 0.8～2: 1～3 qualitySystem forms. Defoamer adopts containing organosiloxane type defoamer, as the BYK051 of German Bi Ke chemical company,BYK052, EFKA2022, the EFKA2038 of Ciba company; Levelling agent adopts polysiloxane multipleThe one of compound, polyether-modified dimethyl-silicon alkyl copolymer, fluorine-carbon modified dimethyl polysiloxane copolymer etc.,As EFKA333, BYK3600, the BYK358 of German Bi Ke chemical company; As Ciba companyBFKA3033, EFKA3288; Ricinate is that the unsaturated polybasic carboxylic acid polymer of low-molecular-weight adds organicSilane copolymer, as the BYK-P104S of German Bi Ke chemical company, as the EFKA5065 of Ciba company.
One in solvent employing n-butyl acetate, 1-Methoxy-2-propyl acetate, cyclohexanone, dimethylbenzene or a kind ofAbove mixture.
B component is aliphatic polymeric isocyanate curing agent, and isocyanate group content is 12～19.6%, can adopt as moralDESMODEYN75, the N3390 of Chemical Bayer Ltd. of state.
The coating method of the coating described in the present patent application can adopt spraying, and coating layer thickness is controlled at15～30 μ m, can obtain good result.
Coating described in the present patent application, has following beneficial effect:
1, rubber roll coating surface has the function of electric charge of transmission, the gathering that can effectively reduce electrostatic charge withThe rising of electrostatic potential;
2, the coefficient of friction of rubber roll coating is 0.2～0.4, meets printer rubber roller effects on surface coefficient of frictionRequirement;
3, conduction rubber roll fluorocarbon coating raw material wide material sources used, in liberal supply;
4, release: the not sticky colour band of normal temperature; 150 DEG C, 3 seconds not sticky colour bands; Spray painting is at printerRubber roll on, the photo not bleeding bright in luster of printing, colour contamination, definition is good, rubber roll is gone throughThrough 20,000 accelerated aging tests without extremely.
Detailed description of the invention
Below in conjunction with detailed description of the invention, to the low contamination rubber roll fluorocarbon coating of the conduction described in the present patent application andManufacture method is described and illustrates, object is for the public better understands described technology, instead of to instituteState the restriction of technology, the improvement of described coating and preparation method thereof being carried out in the principle with identical or approximate, bagDraw together the replacement of similar component in formula, the increase and decrease of proportion, and the variation of preparation technology's conditional, all existWithin the present patent application technical scheme required for protection.
Embodiment mono-
In the present embodiment: the formula of A component employing table-1 is prepared:
Table-1
The consisting of of B component in the present embodiment: aliphatic isocyanates curing agent.
Described in the present patent application, the preparation method of coating is as described below:
1, prepare in accordance with the following steps A component: the preparation of A component comprises two processes. The first process is preparationBlack conductive mill base: according to the above-mentioned formula of A component, by 1/3 fluorocarbon resin (GK550), i.e. 22.83KgPut in the middle of the container of appointment, add successively 0.5Kg Ricinate (BYK-P104S), the cured powder of 3.9Kg(S-232), the conductive carbon black of the mixed solvent of 1/3 butyl acetate and dimethylbenzene (3.77Kg) and 4Kg(20 μ m) for powder; Under the dispersion machine of 1500rpm rotating speed, normal temperature high speed dispersion 30min, then takes out and insertsThree-roller grinds, and takes out for subsequent use during to fineness≤30 μ m. The second process is: fill a prescription according to above-mentioned A componentMass ratio, progressively adds remaining 45.67Kg fluorocarbon resin (GK550), 5.7Kg in the container requiring in regulationFlatting silica (ED-30), 0.35Kg defoamer (EFKA2038), 0.35Kg levelling agent (BYK-333), withAnd the first black conductive mill base for preparing of process; Under the dispersion machine of 1500rpm rotating speed, normal temperature high speed dispersion30min, until fineness≤30 μ m. Then the rotating speed of dispersion machine is dropped to 500rpm, join according to above-mentioned A componentThe mass ratio of side, adds the mixed solvent of remaining 7.53Kg butyl acetate and dimethylbenzene, dispersion 15min,The viscosity that obtains product is 73～77KU, and solid content is 63.5 ± 2%; After sampling Detection is qualified, with 150～200Eye mesh screen filters, metering packing.
2, A, the B component of preparation are above mixed in mass ratio at 4: 1, after slaking 15min, be sprayed at fourth cyanogen rubberOn the printer rubber roller that glue is made, controlling coating layer thickness is 25 ± 2 μ m, detects performance as shown in table 2.
Table-2 detects results of property
Embodiment bis-
In the present embodiment, each component composition and consumption (Kg) are as table-3, and preparation method is with embodiment 1.
Table-3
The A of preparation above, B component are mixed respectively in mass ratio at 4.5: 1, after slaking 15min, be sprayed at fourthOn the printer rubber roller that cyanogen rubber is made, controlling coating layer thickness is 25 ± 2 μ m, detects performance respectively as table 4Show.
Table-4
Embodiment tri-
In the present embodiment, each component composition and consumption (Kg) are as table-5, and preparation method is with embodiment 1.
Table-5
A, the B component of preparation are above mixed in mass ratio at 3.5: 1, after slaking 15min, be sprayed at fourth cyanogen rubberOn the printer rubber roller that glue is made, controlling coating layer thickness is 25 ± 2 μ m, detects performance as shown in table 6 respectively.
Table-6
Claims (5)
1. the low contamination rubber roll fluorocarbon coating of conduction, is characterized in that: two kinds of components of A, B that described coating is 3 ~ 8:1 by mass ratio form, wherein,
It is as described below that in A component, each composition accounts for the quality percentage composition of A component: the fluorocarbon resin of hydroxyl in molecular structure: 65 ~ 71%, conductive carbon black powder: 2.5 ~ 4.5%, flatting silica: 2 ~ 7%, wax powder: 2 ~ 5%, auxiliary agent: 1 ~ 3%, solvent: 15 ~ 25%, wherein, the hydroxy radical content in fluorocarbon resin accounts for 1.5 ~ 2.5% of fluorocarbon resin quality; Described auxiliary agent is the mixture that defoamer, levelling agent, Ricinate mix with the ratio of 1:0.8 ~ 2:1 ~ 3, described Ricinate is the mixture of molecular weight lower than 5000 daltonian unsaturated polybasic carboxylic acid polymer and organosiloxane copolymer, and in this mixture, the mixed proportion of polybasic carboxylic acid polymer and organosiloxane copolymer is 8:2;
B component is aliphatic polymeric isocyanate curing agent, and wherein isocyanate group content accounts for 12 ~ 19.6% of aliphatic polymeric isocyanate quality; Described flatting silica is synthesis gas aerosil particle;
The preparation method of the low contamination rubber roll of described conduction fluorocarbon coating comprises following step:
1) preparation of A component comprises two processes:
A) the first process is for preparing black conductive mill base: according to the mass ratio of A component formula, 1/3 quantitative fluorocarbon resin is put in the middle of the container of appointment, add successively Ricinate, wax powder, 1/3 solvent and conductive carbon black powder, under the dispersion machine of 1200 ~ 1800rpm rotating speed, high speed dispersion 20 ~ 40min at the temperature of 18 ~ 25 DEG C, then take out and insert three-roller grinding, during to fineness≤30 μ m, take out for subsequent use;
B) the second process is: according to the mass ratio of A component formula, and the black conductive mill base that adds remaining 2/3 fluorocarbon resin, flatting silica, residue auxiliary agent and the first process to prepare in the container requiring in regulation; Under the dispersion machine of 1200 ~ 1800rpm rotating speed, high speed dispersion 20 ~ 40min at the temperature of 18 ~ 25 DEG C, until fineness≤30 μ m, then by dispersion machine reduction of speed to 300 ~ 800rpm,, disperse after 10 ~ 20min, after sampling Detection is qualified than the solvent that adds remaining 2/3 according to A component prescription quality, with 150 ~ 200 eye mesh screens filtrations, metering packing;
2) proportioning that A, B component are 3 ~ 8:1 by quality mixes, and after slaking 10 ~ 20min, uses.
2. coating according to claim 1, is characterized in that: described wax powder is polyethylene micropowder wax.
3. coating according to claim 1, is characterized in that: described levelling agent comprises polysiloxane compound.
4. coating according to claim 1, is characterized in that: described levelling agent comprises polyether-modified dimethyl-silicon alkyl copolymer or fluorine-carbon modified dimethyl polysiloxane copolymer.
5. coating according to claim 1, is characterized in that: described solvent comprises one or more mixture of n-butyl acetate, 1-Methoxy-2-propyl acetate, cyclohexanone, dimethylbenzene.
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| CN201210049192.6A CN103289547B (en) | 2012-02-29 | 2012-02-29 | The low contamination rubber roll fluorocarbon coating of a kind of conduction and manufacture method thereof |
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| CN103788850A (en) * | 2014-01-08 | 2014-05-14 | 王斯新 | Aqueous conductive double-component polyurethane rubber roller coating and preparation method thereof |
| JP6447557B2 (en) * | 2016-03-24 | 2019-01-09 | 日亜化学工業株式会社 | Method for manufacturing light emitting device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121840A (en) * | 2007-09-18 | 2008-02-13 | 深圳市明远氟涂料有限公司 | Normal temperature solidifying fluorine-carbon coating for rubber roller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101121840A (en) * | 2007-09-18 | 2008-02-13 | 深圳市明远氟涂料有限公司 | Normal temperature solidifying fluorine-carbon coating for rubber roller |
Non-Patent Citations (1)
| Title |
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| "导电炭黑对氟碳导电防腐涂料防腐蚀性能的影响";姜兆华等;《中国涂料》;20091231;第24卷(第3期);第52、53、60页 * |
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