CN105419558A - Antibacterial electronic component fluorescent powder coating and preparation method thereof - Google Patents
Antibacterial electronic component fluorescent powder coating and preparation method thereof Download PDFInfo
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- CN105419558A CN105419558A CN201510829262.3A CN201510829262A CN105419558A CN 105419558 A CN105419558 A CN 105419558A CN 201510829262 A CN201510829262 A CN 201510829262A CN 105419558 A CN105419558 A CN 105419558A
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- fluorescent powder
- expanded graphite
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 87
- 239000000843 powder Substances 0.000 title claims abstract description 64
- 238000000576 coating method Methods 0.000 title claims abstract description 53
- 239000011248 coating agent Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 60
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 60
- 239000010439 graphite Substances 0.000 claims abstract description 60
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 37
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 239000003822 epoxy resin Substances 0.000 claims abstract description 16
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 24
- 238000006396 nitration reaction Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 19
- 239000006185 dispersion Substances 0.000 claims description 17
- 239000004593 Epoxy Substances 0.000 claims description 16
- 238000000227 grinding Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 16
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 16
- 239000000419 plant extract Substances 0.000 claims description 16
- 239000012286 potassium permanganate Substances 0.000 claims description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 14
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000284 extract Substances 0.000 claims description 10
- 239000011863 silicon-based powder Substances 0.000 claims description 10
- 150000008065 acid anhydrides Chemical class 0.000 claims description 9
- 150000007524 organic acids Chemical group 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 8
- 239000000080 wetting agent Substances 0.000 claims description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- 238000007873 sieving Methods 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 241000628997 Flos Species 0.000 claims 2
- 239000009636 Huang Qi Substances 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 229940094952 green tea extract Drugs 0.000 claims 2
- 235000020688 green tea extract Nutrition 0.000 claims 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 125000003700 epoxy group Chemical group 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
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- 230000008023 solidification Effects 0.000 description 3
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- 239000000126 substance Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
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Abstract
The invention provides an antibacterial electronic component fluorescent powder coating. The antibacterial electronic component fluorescent powder coating is mainly prepared from epoxy resin, silica powder, a curing agent, fluorescent powder, antibacterial expanded graphite and dispersant. The antibacterial electronic component fluorescent powder coating has the good antibacterial property, temperature resistance, abrasion resistance, impact resistance and adhesion through scientific matching of all the raw materials and a reasonable preparation method.
Description
Technical field
Paint field of the present invention, is specifically related to a kind of antibacterial electronic component fluorescent powder coating and preparation method thereof.
Background technology
Powder coating is a kind of dry state pressed powder not containing organic solvent, it is different with water-borne coatings from the coating of common solvent type, do not need during application with solvent or water as dispersion medium, but using air as dispersion medium, be coated with equably and be contained in workpiece surface, form a kind of new coating of film after heating, this is the remarkable difference part with other coating.Powder coating is a kind of coating variety of high speed development, there is the advantage such as energy-conserving and environment-protective, three-waste free pollution, be used widely at present, but especially home appliance electronic element is higher to antibacterial requirement for some electronic components, powder coating in the market cannot meet its requirement.
Summary of the invention
The object of the present invention is to provide a kind of antibacterial electronic component fluorescent powder coating and preparation method.
The invention provides a kind of antibacterial electronic component fluorescent powder coating, be made up of the component of following weight percent:
Preferably, described silicon powder particle diameter is 200 orders.
Preferably, described solidifying agent is organic acid or acid anhydride type curing agent.
Preferably, described epoxy resin epoxy equivalent is 3000-7000g/eq.
Preferably, the particle diameter of described antibacterial expanded graphite is 150 orders.
Preferably, the preparation method of described antibacterial expanded graphite is; By the raw graphite taken, join in the nitration mixture that certain proportion mixes under constantly stirring, potassium permanganate and iron trichloride is added after stirring, 30-40min is reacted at 25-35 DEG C, it is 6-7 to pH that reaction terminates after washing, then dries at 70-85 DEG C in an oven and obtains expansible black lead, expansible black lead is ground to 200 orders, at expansible black lead fine powder after grinding is mixed rear 200-250 DEG C with natural phant antiseptic-germicide, roasting obtains antibacterial expanded graphite, stand-by after grinding.
Preferably, described nitration mixture is that phosphoric acid mixes obtained with concentrated hydrochloric acid (massfraction 35%) with mass ratio 1:1;
Preferably, in the preparation process of described antibacterial expanded graphite, the mass ratio of each raw material is: graphite: nitration mixture: potassium permanganate: iron trichloride=1:2-3:0.3-0.7:0.1-0.3; Expansible black lead fine powder: natural phant antiseptic-germicide=100:5-15.
Preferably, the natural phant antiseptic-germicide described in described antibacterial graphite preparation process is natural plant extracts, and described natural plant extracts, is made up of the component of following weight percent:
Preferably, described dispersion agent is the peaceful wetting agent 875 of section.
One, epoxy resin:
Epoxy resin is the organic compound containing two or more epoxide groups in general reference molecule, and except indivedual, their relative molecular mass is not high.The molecular structure of epoxy resin be with in molecular chain containing active epoxide group for its feature, epoxide group can be positioned at the end of molecular chain, centre or structure circlewise.Due in molecular structure containing active epoxide group, make they can with polytype solidifying agent generation crosslinking reaction and formed and insoluble, not molten there is the cancellated superpolymer of three-dimensional.
Epoxy resin is one of very important thermoset macromolecule material, has cohesive strength high, and electrical insulation capability is good, the advantages such as shrinkability is low, good processability, is widely used in each fields such as electronics, machinery, building.
It is that main raw material prepares powder coating that the present invention selects epoxy equivalent (weight) to be the epoxy resin of 3000-7000g/eq.
Two, silicon powder
Silicon powder is by natural quartz (SiO
2) or fused quartz (natural quartz is through high-temperature fusion, cooled amorphous Si O
2) through the micro mist of the multiple tracks processes such as broken, ball milling (or vibration, airflow milling), flotation, pickling purification, high purity water process.Silicon powder is a kind of nontoxic, tasteless, free of contamination ceramic.Due to it possess that temperature tolerance is good, the excellent performance such as acid-alkali-corrosive-resisting, poor thermal conductivity, high insulation, low bulk, stable chemical performance, hardness are large, be widely used in the fields such as chemical industry, electronics, unicircuit (IC), electrical equipment, plastics, coating, senior paint, rubber, national defence.Along with the fast development of high-tech sector, silicon powder also will step into new historical periods.
Silicon powder is widely used in high-grade high-performance low-cement refractory pouring material and prefabricated component, and work-ing life is three times of common mould material, and refractoriness improves about 100 DEG C, and hot strength and thermal shock resistance all obviously improve.Be widely used in: the industries such as coke oven, ironmaking, steel-making, steel rolling, non-ferrous metal, glass, pottery and generating.
Three, solidifying agent
Solidifying agent has another name called stiffening agent, ripening agent or set agent, is that a class is promoted or controls material or the mixture of curing reaction.Resin solidification is through the chemical reactions such as condensation, closed loop, addition or catalysis, makes thermosetting resin that irreversible change procedure occur, and solidification has come by adding solidification (being cross-linked) agent.
The present invention selects organic acid or acid anhydride type curing agent.
Four, antibacterial expanded graphite:
The present invention selects antibacterial expanded graphite as main properties-correcting agent, the effect played comprises: one is the laminate structure utilizing expanded graphite, after stirring, silicon powder for carrier, effectively can play the effect that temperature tolerance is good, acid-alkali-corrosive-resisting, height insulate with it therein.Two is namely add natural antibacterial extract in the preparation process of antibacterial expanded graphite, makes natural antibacterial extract can insert the interlayer structure of graphite well, defines the multi-level antibacterial structure of microcosmic point, thus play good antibacterial effect.Three is the selections by the process conditions in antibacterial expanded graphite preparation process, reaches the optimal selection of the expansion effect of antibacterial effect and graphite.
Present invention also offers a kind of preparation method of antibacterial electronic component fluorescent powder coating, comprise following steps:
Step one: after being opened by stirrer, adds in stirrer by epoxy resin-solidifying agent-antibacterial expanded graphite-silicon powder-order of dispersion agent-fluorescent material and stirs;
Step 2: the raw material stirred put into forcing machine heating and extrude, Heating temperature is 80-140 DEG C, and the work in-process extruded are sheet.
Step 3: sheet work in-process are put into pulverizer and pulverizes and grind to form powdery, through sieving and obtain antibacterial electronic component fluorescent powder coating of the present invention.
Of the present inventionly usefully effectively to be: antibacterial electronic component fluorescent powder coating of the present invention is by the scientific matching of each raw material and rational preparation method, and described powder coating has good germ resistance, high thermal resistance, wear resistance, shock resistance, sticking power.
Embodiment
Embodiment 1
The invention provides a kind of antibacterial electronic component fluorescent powder coating, be made up of the component of following weight percent:
Described solidifying agent is organic acid or acid anhydride type curing agent.
Described epoxy resin epoxy equivalent is 3000-7000g/eq.
The preparation method of described antibacterial expanded graphite is; By the raw graphite taken, join in the nitration mixture that certain proportion mixes under constantly stirring, potassium permanganate and iron trichloride is added after stirring, 35min is reacted at 25 DEG C, it is 6-7 to pH that reaction terminates after washing, then dries at 75 DEG C in an oven and obtains expansible black lead, expansible black lead is ground to 200 orders, at expansible black lead fine powder after grinding is mixed latter 250 DEG C with natural phant antiseptic-germicide, roasting obtains antibacterial expanded graphite, stand-by after grinding.
Described nitration mixture is that phosphoric acid mixes obtained with concentrated hydrochloric acid (massfraction 35%) with mass ratio 1:1;
In the preparation process of described antibacterial expanded graphite, the mass ratio of each raw material is: graphite: nitration mixture: potassium permanganate: iron trichloride=1:2:0.5:0.2; Expansible black lead fine powder: natural phant antiseptic-germicide=100:10.
Natural phant antiseptic-germicide described in described antibacterial graphite preparation process is natural plant extracts, and described natural plant extracts, is made up of the component of following weight percent:
Described dispersion agent is the peaceful wetting agent 875 of section.
A preparation method for antibacterial electronic component fluorescent powder coating, comprises following steps:
Step one: after being opened by stirrer, adds in stirrer by epoxy resin-solidifying agent-antibacterial expanded graphite-silicon powder-order of dispersion agent-fluorescent material and stirs;
Step 2: the raw material stirred put into forcing machine heating and extrude, Heating temperature is 120 DEG C, and the work in-process extruded are sheet.
Step 3: sheet work in-process are put into pulverizer and pulverizes and grind to form powdery, through sieving and obtain antibacterial electronic component fluorescent powder coating of the present invention.
Embodiment 2
The invention provides a kind of antibacterial electronic component fluorescent powder coating, be made up of the component of following weight percent:
Described solidifying agent is organic acid or acid anhydride type curing agent.
Described epoxy resin epoxy equivalent is 3000-7000g/eq.
The preparation method of described antibacterial expanded graphite is; By the raw graphite taken, join in the nitration mixture that certain proportion mixes under constantly stirring, potassium permanganate and iron trichloride is added after stirring, 30min is reacted at 35 DEG C, it is 6-7 to pH that reaction terminates after washing, then dries at 75 DEG C in an oven and obtains expansible black lead, expansible black lead is ground to 200 orders, at expansible black lead fine powder after grinding is mixed latter 200 DEG C with natural phant antiseptic-germicide, roasting obtains antibacterial expanded graphite, stand-by after grinding.
Described nitration mixture is that phosphoric acid mixes obtained with concentrated hydrochloric acid (massfraction 35%) with mass ratio 1:1;
In the preparation process of described antibacterial expanded graphite, the mass ratio of each raw material is: graphite: nitration mixture: potassium permanganate: iron trichloride=1:2.5:0.7:0.1; Expansible black lead fine powder: natural phant antiseptic-germicide=100:15.
Natural phant antiseptic-germicide described in described antibacterial graphite preparation process is natural plant extracts, and described natural plant extracts, is made up of the component of following weight percent:
Described dispersion agent is the peaceful wetting agent 875 of section.
A preparation method for antibacterial electronic component fluorescent powder coating, comprises following steps:
Step one: after being opened by stirrer, adds in stirrer by epoxy resin-solidifying agent-antibacterial expanded graphite-silicon powder-order of dispersion agent-fluorescent material and stirs;
Step 2: the raw material stirred put into forcing machine heating and extrude, Heating temperature is 100 DEG C, and the work in-process extruded are sheet.
Step 3: sheet work in-process are put into pulverizer and pulverizes and grind to form powdery, through sieving and obtain antibacterial electronic component fluorescent powder coating of the present invention.
Embodiment 3
The invention provides a kind of antibacterial electronic component fluorescent powder coating, be made up of the component of following weight percent:
Described solidifying agent is organic acid or acid anhydride type curing agent.
Described epoxy resin epoxy equivalent is 3000-7000g/eq.
The preparation method of described antibacterial expanded graphite is; By the raw graphite taken, join in the nitration mixture that certain proportion mixes under constantly stirring, potassium permanganate and iron trichloride is added after stirring, 30min is reacted at 35 DEG C, it is 6-7 to pH that reaction terminates after washing, then dries at 85 DEG C in an oven and obtains expansible black lead, expansible black lead is ground to 200 orders, at expansible black lead fine powder after grinding is mixed latter 230 DEG C with natural phant antiseptic-germicide, roasting obtains antibacterial expanded graphite, stand-by after grinding.
Described nitration mixture is that phosphoric acid mixes obtained with concentrated hydrochloric acid (massfraction 35%) with mass ratio 1:1;
In the preparation process of described antibacterial expanded graphite, the mass ratio of each raw material is: graphite: nitration mixture: potassium permanganate: iron trichloride=1:3:0.3:0.1; Expansible black lead fine powder: natural phant antiseptic-germicide=100:5.
Natural phant antiseptic-germicide described in described antibacterial graphite preparation process is natural plant extracts, and described natural plant extracts, is made up of the component of following weight percent:
Described dispersion agent is the peaceful wetting agent 875 of section.
A preparation method for antibacterial electronic component fluorescent powder coating, comprises following steps:
Step one: after being opened by stirrer, adds in stirrer by epoxy resin-solidifying agent-antibacterial expanded graphite-silicon powder-order of dispersion agent-fluorescent material and stirs;
Step 2: the raw material stirred put into forcing machine heating and extrude, Heating temperature is 120 DEG C, and the work in-process extruded are sheet.
Step 3: sheet work in-process are put into pulverizer and pulverizes and grind to form powdery, through sieving and obtain antibacterial electronic component fluorescent powder coating of the present invention.
Embodiment 4
The invention provides a kind of antibacterial electronic component fluorescent powder coating, be made up of the component of following weight percent:
Described solidifying agent is organic acid or acid anhydride type curing agent.
Described epoxy resin epoxy equivalent is 3000-7000g/eq.
The preparation method of described antibacterial expanded graphite is; By the raw graphite taken, join in the nitration mixture that certain proportion mixes under constantly stirring, potassium permanganate and iron trichloride is added after stirring, 40min is reacted at 25 DEG C, it is 6-7 to pH that reaction terminates after washing, then dries at 70 DEG C in an oven and obtains expansible black lead, expansible black lead is ground to 200 orders, at expansible black lead fine powder after grinding is mixed latter 250 DEG C with natural phant antiseptic-germicide, roasting obtains antibacterial expanded graphite, stand-by after grinding.
Described nitration mixture is that phosphoric acid mixes obtained with concentrated hydrochloric acid (massfraction 35%) with mass ratio 1:1;
In the preparation process of described antibacterial expanded graphite, the mass ratio of each raw material is: graphite: nitration mixture: potassium permanganate: iron trichloride=1:2:0.5:0.2; Expansible black lead fine powder: natural phant antiseptic-germicide=100:10.
Natural phant antiseptic-germicide described in described antibacterial graphite preparation process is natural plant extracts, and described natural plant extracts, is made up of the component of following weight percent:
Described dispersion agent is the peaceful wetting agent 875 of section.
A preparation method for antibacterial electronic component fluorescent powder coating, comprises following steps:
Step one: after being opened by stirrer, adds in stirrer by epoxy resin-solidifying agent-antibacterial expanded graphite-silicon powder-order of dispersion agent-fluorescent material and stirs;
Step 2: the raw material stirred put into forcing machine heating and extrude, Heating temperature is 100 DEG C, and the work in-process extruded are sheet.
Step 3: sheet work in-process are put into pulverizer and pulverizes and grind to form powdery, through sieving and obtain antibacterial electronic component fluorescent powder coating of the present invention.
Embodiment 5
The invention provides a kind of antibacterial electronic component fluorescent powder coating, be made up of the component of following weight percent:
Described solidifying agent is organic acid or acid anhydride type curing agent.
Described epoxy resin epoxy equivalent is 3000-7000g/eq.
The preparation method of described antibacterial expanded graphite is; By the raw graphite taken, join in the nitration mixture that certain proportion mixes under constantly stirring, potassium permanganate and iron trichloride is added after stirring, 35min is reacted at 30 DEG C, it is 6-7 to pH that reaction terminates after washing, then dries at 75 DEG C in an oven and obtains expansible black lead, expansible black lead is ground to 200 orders, at expansible black lead fine powder after grinding is mixed latter 220 DEG C with natural phant antiseptic-germicide, roasting obtains antibacterial expanded graphite, stand-by after grinding.
Described nitration mixture is that phosphoric acid mixes obtained with concentrated hydrochloric acid (massfraction 35%) with mass ratio 1:1;
In the preparation process of described antibacterial expanded graphite, the mass ratio of each raw material is: graphite: nitration mixture: potassium permanganate: iron trichloride=1:2.5:0.5:0.2; Expansible black lead fine powder: natural phant antiseptic-germicide=100:10.
Natural phant antiseptic-germicide described in described antibacterial graphite preparation process is natural plant extracts, and described natural plant extracts, is made up of the component of following weight percent:
Described dispersion agent is the peaceful wetting agent 875 of section.
A preparation method for antibacterial electronic component fluorescent powder coating, comprises following steps:
Step one: after being opened by stirrer, adds in stirrer by epoxy resin-solidifying agent-antibacterial expanded graphite-silicon powder-order of dispersion agent-fluorescent material and stirs;
Step 2: the raw material stirred put into forcing machine heating and extrude, Heating temperature is 140 DEG C, and the work in-process extruded are sheet.
Step 3: sheet work in-process are put into pulverizer and pulverizes and grind to form powdery, through sieving and obtain antibacterial electronic component fluorescent powder coating of the present invention.
Adopt the method for electrostatic spraying to be sprayed at electronical elements surface with the antibacterial electronic component fluorescent powder coating of above proportioning, electronic component is detected.
Fire resistance is tested: above-described embodiment 1-5 film, with alcohol blast burner flame apart from coating 5cm, and baking, coat-thickness 1mm, fire duration 5min.Result: above film all can form the carburization zone comparing even compact.
Anti-microbial property is tested:
Above-mentioned detection completes on the coating model made by GB/T1756 by powder coating of the present invention.
This detects data only for above-mentioned detection sample.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. an antibacterial electronic component fluorescent powder coating, is characterized in that, be made up of the component of following weight percent:
Epoxy resin 30%-50%
Silicon powder 15%-40%
Solidifying agent 5%-15%
Fluorescent material 3%-5%
Antibacterial expanded graphite 10%-20%
Dispersion agent 1-2%.
2. antibacterial electronic component fluorescent powder coating as claimed in claim 1, it is characterized in that, described silicon powder particle diameter is 200 orders, and the particle diameter of described antibacterial expanded graphite is 150 orders.
3. antibacterial electronic component fluorescent powder coating as claimed in claim 1, it is characterized in that, described solidifying agent is organic acid or acid anhydride type curing agent.
4. antibacterial electronic component fluorescent powder coating as claimed in claim 1, it is characterized in that, described epoxy resin epoxy equivalent is 3000-7000g/eq.
5. antibacterial electronic component fluorescent powder coating as claimed in claim 1, it is characterized in that, the preparation method of described antibacterial expanded graphite is: by the raw graphite taken, join in the nitration mixture that certain proportion mixes under constantly stirring, potassium permanganate and iron trichloride is added after stirring, 30-40min is reacted at 25-35 DEG C, it is 6-7 to pH that reaction terminates after washing, then dry at 70-85 DEG C in an oven and obtain expansible black lead, expansible black lead is ground to 200 orders, at expansible black lead fine powder after grinding is mixed rear 200-250 DEG C with natural phant antiseptic-germicide, roasting obtains antibacterial expanded graphite, stand-by after grinding.
6. antibacterial electronic component fluorescent powder coating as claimed in claim 5, it is characterized in that, in the preparation process of described antibacterial expanded graphite, the mass ratio of each raw material is: graphite: nitration mixture: potassium permanganate: iron trichloride=1:2-3:0.3-0.7:0.1-0.3; Expansible black lead fine powder: natural phant antiseptic-germicide=100:5-15.
7. antibacterial electronic component fluorescent powder coating as claimed in claim 5, it is characterized in that, natural phant antiseptic-germicide described in described antibacterial graphite preparation process is natural plant extracts, and described natural plant extracts, is made up of the component of following weight percent:
Radix Astragali extract: 10-25%
Flos Lonicerae extract: 20-30%
Bamboo pulp extract: 15-25%
Herba Leonuri extract: 5-15%
Green tea extract: 20-40%.
8. antibacterial electronic component fluorescent powder coating as claimed in claim 1, is characterized in that, described dispersion agent is the peaceful wetting agent 875 of section.
9. a preparation method for antibacterial electronic component fluorescent powder coating, is characterized in that, comprise following steps:
Step one: after being opened by stirrer, adds in stirrer by epoxy resin-solidifying agent-antibacterial expanded graphite-silicon powder-order of dispersion agent-fluorescent material and stirs;
Step 2: the raw material stirred put into forcing machine heating and extrude, Heating temperature is 80-140 DEG C, and the work in-process extruded are sheet.
Step 3: sheet work in-process are put into pulverizer and pulverizes and grind to form powdery, through sieving and obtain antibacterial electronic component fluorescent powder coating of the present invention.
10. the preparation method of antibacterial electronic component fluorescent powder coating as claimed in claim 9, is characterized in that, described antibacterial electronic component fluorescent powder coating is made up of the component of following weight percent:
Epoxy resin 30%
Silicon powder 200 order 33%
Solidifying agent 12%
Fluorescent material 4%
Antibacterial expanded graphite 150 order 20%
Dispersion agent 1%;
Described solidifying agent is organic acid or acid anhydride type curing agent;
Described epoxy resin epoxy equivalent is 3000-7000g/eq;
The preparation method of described antibacterial expanded graphite is; By the raw graphite taken, join in the nitration mixture that certain proportion mixes under constantly stirring, potassium permanganate and iron trichloride is added after stirring, 35min is reacted at 25 DEG C, it is 6-7 to pH that reaction terminates after washing, then dries at 75 DEG C in an oven and obtains expansible black lead, expansible black lead is ground to 200 orders, at expansible black lead fine powder after grinding is mixed latter 250 DEG C with natural phant antiseptic-germicide, roasting obtains antibacterial expanded graphite, stand-by after grinding;
Described nitration mixture to be phosphoric acid with massfraction be 35% concentrated hydrochloric acid mix obtained with mass ratio 1:1;
In the preparation process of described antibacterial expanded graphite, the mass ratio of each raw material is: graphite: nitration mixture: potassium permanganate: iron trichloride=1:2:0.5:0.2; Expansible black lead fine powder: natural phant antiseptic-germicide=100:10;
Natural phant antiseptic-germicide described in described antibacterial graphite preparation process is natural plant extracts, and described natural plant extracts, is made up of the component of following weight percent:
Radix Astragali extract: 15%
Flos Lonicerae extract: 25%
Bamboo pulp extract: 15%
Herba Leonuri extract: 15%
Green tea extract: 30%;
Described dispersion agent is the peaceful wetting agent 875 of section;
Heating temperature in described step 2 is 120 DEG C.
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| CN106118370A (en) * | 2016-07-28 | 2016-11-16 | 华巧波 | A kind of impact resistance antibacterial electronic component powdery paints and preparation method thereof |
| CN106167666A (en) * | 2016-07-28 | 2016-11-30 | 华巧波 | A kind of impact resistance fire prevention electronic component powdery paints and preparation method thereof |
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