CN105062156A - Ceramic paint with antibacterial function and preparation method thereof - Google Patents

Ceramic paint with antibacterial function and preparation method thereof Download PDF

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Publication number
CN105062156A
CN105062156A CN201510460964.9A CN201510460964A CN105062156A CN 105062156 A CN105062156 A CN 105062156A CN 201510460964 A CN201510460964 A CN 201510460964A CN 105062156 A CN105062156 A CN 105062156A
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component
minute
paint
finish paint
priming paint
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CN105062156B (en
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赵彬彬
王赟
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Caxiu Wanhui (Wuxi) high tech materials Co., Ltd
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CMW COATINGS (WUXI) Ltd
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Abstract

The invention relates to a ceramic paint with antibacterial function. The ceramic paint is composed of a primer and a finish paint. The primer and the finish paint are both composed of a component A a main agent, a component B a curing agent and a component C a catalyst. The component A, component B and component C of the primer and the finish paint are in a weight ratio of 2-4:1-2:0.01-0.02. The coating process of the ceramic paint provided by the invention generates no harmful decomposition product, has very low VOC emission, and is in accordance with the environmental requirement of RoHS. The ceramic paint is a novel green and environmental protection paint, and can be applied to the nonstick internal coating of cookers, and coffee pots, heat preservation cups and other small household electrical appliances.

Description

A kind of ceramic coating with antibacterial and preparation method thereof
Technical field
The present invention relates to kitchen tools technical field of coatings, especially relate to a kind of ceramic coating with antibacterial and preparation method thereof.
Background technology
Nano material is used for anti-biotic material mainly due to the reduction along with agent particle size, and specific surface area increases greatly, the particle of particle diameter 5nm, and the percent by volume on surface is 50%, and during particle diameter 2nm, the percent by volume on surface is increased to 80%.Huge specific surface, there is many active centre, makes nano material have extremely strong adsorptive power in strong state severe mismatch.This makes nanoparticle for no matter being the Sauerstoffatom, the oxyradical that impel material corruption, still produces the alkanes molecule etc. of other peculiar smell, all has extremely strong prisoner's ability of grabbing, make it have anti-corrosive antibacterial function.
Along with the development of society, anti-biotic material at daily fiber garment, household electrical appliance, sanitary ware, food product pack and steel plate for building, the fields such as coating obtain and apply more and more widely, wherein at household articles, family's fibre product, electrical home appliances and field of medical products are applied.As cooker non-viscous paint, because it directly contacts with food, except needing to have good non-adhesion behavior and security, in order to improve the environmental quality in people's live and work space further, exploitation is needed to have the coating of antibacterial.But there is no in the market and be anyly aly applicable to be coated with coating in cooker and there is non-adhesion behavior simultaneously, safety performance and there is the coating of antibacterial.
Summary of the invention
For the problems referred to above that prior art exists, the applicant provides a kind of ceramic coating with antibacterial and preparation method thereof.Without hazardous decomposition products in coating process of the present invention, VOC discharge is extremely low, and meeting the environmental requirement of RoHS, is a kind of new green environment protection coating; Be applicable to the interior painting of cooker non-stick pan, and coffee pot, on the small household electrical appliances such as thermos cup.
Technical scheme of the present invention is as follows:
Have a ceramic coating for antibacterial, be made up of priming paint and finish paint two portions, described priming paint and finish paint form by component A host, B component solidifying agent and component C catalyst;
The component A of described priming paint and finish paint: B component: component C is by weight ratio: 2-4:1-2:0.01-0.02;
The raw material of described primer composition A host by weight percentage ratio is:
The raw material of described finish paint component A host by weight percentage ratio is:
The particle diameter of described silicon sol is 9-17nm;
Described Nano-meter SiO_2 2dispersion liquid is the SiO of particle diameter 100-120nm solids content 20% 2aqueous dispersions;
The raw material of described priming paint and finish paint B component solidifying agent by weight percentage ratio is:
Methyltrimethoxy silane 96-98%
Silicone oil 2-4;
The raw material of described priming paint and finish paint component C catalyst by weight percentage ratio is:
Formic acid 100%.
Described mineral dye is titanium dioxide.Described pearl powder is Merck silvery white pearlescence Iriodin153.
Have a preparation method for the ceramic coating of antibacterial, concrete steps are:
(1) primer composition A host:
1. first by silicon sol 200-300 order nylon net filter, and stir with 600-800rpm/ minute rotating speed;
2. by uniform for pre-mixing deionized water and butyl glycol ether mixture, join in stirring in silicon sol;
3., in above-mentioned compound, under 600-800rpm/ minute whipped state, wilkinite is added, and with the Rate Dispersion 5 minutes of 800-1000rpm/ minute;
4. in above-mentioned compound, under 600-800rpm/ minute whipped state, mineral dye and aluminum oxide abrasion-resistant powder is added, with the Rate Dispersion 15-20 minute of 800-1000rpm/ minute;
5. used by above-mentioned compound basket sand machine to be ground to after fineness is less than 15 μm, add Nano-meter SiO_2 with 600-800rpm/ minute under whipped state 2dispersion liquid, and to stir after 5-10 minute the finished product of system;
The viscosity of described finished product is 12 ± 3 seconds, and described viscosity DIN4 cup, measures at 23 DEG C of temperature;
(2) finish paint component A host:
1. first by silicon sol 200-300 order nylon net filter, and stir with 600-800rpm/ minute rotating speed;
2. by uniform for pre-mixing deionized water and butyl glycol ether mixture, join in stirring in silicon sol;
3., in above-mentioned compound, under 600-800rpm/ minute whipped state, pearl powder is added, and with the Rate Dispersion 5 minutes of 800-1000rpm/ minute;
The viscosity of described finished product is 8-12 second, and described viscosity DIN4 cup, measures at 23 DEG C of temperature;
(3) priming paint and finish paint B component solidifying agent:
Methyltrimethoxy silane, silicone oil is even at 100-120rpm/ minute speed scroll;
(4) priming paint and finish paint component C catalyst:
Catalyzer component C: formic acid, without the need to special processing, can directly use;
(5) with priming and each component of finish paint by being finished product after curing process slaking, described curing process is as follows:
Priming paint: above-mentioned catalyzer component C is added in solidifying agent B component in proportion, mix rear all adding in component A, by container sealing well afterwards with to mix completely and after reacting and reaching 30-40 DEG C to temperature, what be placed on rolling speed 120-180rpm rolls in oil machine, rolling slaking 2-4h, mixture after slaking being taken off from rolling oil machine, being cooled to after room temperature stand-by until it;
Finish paint: above-mentioned catalyzer component C is added in solidifying agent B component in proportion, mix rear all adding in component A, to mix completely after container sealing is good and after reacting and reaching 30-40 DEG C to temperature, what be placed on rolling speed 120-180rpm rolls in oil machine, rolling slaking 20-24h, mixture after slaking being taken off from rolling oil machine, being cooled to after room temperature stand-by until it;
(6) when using, priming paint thickness requires to be sprayed into 30-45um, and finish paint thickness requires to be sprayed into 3-10um.
In described whole dispersion, stirring and process of lapping, temperature is not less than 10 DEG C and not higher than 35 DEG C.
The technique effect that the present invention is useful is:
The object of the invention is to the weak point making up currently available products, develop a kind of ceramic coating with antibacterial, the silicon sol of the particle diameter 11nm adopting security high and particle diameter 0.12 μm of SiO 2the collocation of particle uses, final coating surface particle is made to have great specific surface area, thus make paint film inside occur many active centre, make it have extremely strong adsorptive power, thus to impelling the Sauerstoffatom of material corruption, oxyradical and producing the alkanes molecule etc. of other peculiar smell, all have and extremely strong grab prisoner's ability, make it have anti-corrosive antibacterial function.
Embodiment
Below in conjunction with embodiment, the present invention is specifically described.Its formula rate percentage:
Embodiment 1
One, priming paint:
(1) component A host:
1. first by silicon sol 45% 300 order nylon net filters, and stir with 800rpm/ minute rotating speed;
2. by uniform for pre-mixing deionized water 2% and butyl glycol ether 1.5% mixture, join in stirring in silicon sol;
3., in above-mentioned compound, under 800rpm/ minute whipped state, wilkinite 0.3% is added, and with the Rate Dispersion 5 minutes of 1000rpm/ minute;
4. in above-mentioned compound, under 800rpm/ minute whipped state, titanium dioxide 30% and aluminum oxide abrasion-resistant powder 4% is added, with the Rate Dispersion 15 minutes of 1000rpm/ minute;
5. used by above-mentioned compound basket sand machine to be ground to fineness and be less than 10um, add Nano-meter SiO_2 with 800rpm/ minute under whipped state 2dispersion liquid 17.2%, and the finished product stirring system after 10 minutes for 1000rpm/ minute.
The viscosity of priming paint finished product is 12 ± 3 seconds, and described viscosity DIN4 cup, measures at 23 DEG C of temperature.
(2) B component solidifying agent: methyltrimethoxy silane 98%, silicone oil 2% are rolled under 120rpm/ minute speed evenly.
(3) component C catalyst: catalyzer component C formic acid 100%, without the need to special processing, can directly use.
Two, finish paint:
(1) component A host:
1. first by silicon sol 83% 300 order nylon net filters, and stir with 800rpm/ minute rotating speed;
2. by uniform for pre-mixing deionized water 13.8% and butyl glycol ether 2% mixture, join in stirring in silicon sol;
3., in above-mentioned compound, under 800rpm/ minute whipped state, pearl powder 1.2% is added, and with the Rate Dispersion 5 minutes of 1000rpm/ minute.
(2) B component solidifying agent: methyltrimethoxy silane 98%, silicone oil 2% are rolled under 120rpm/ minute speed evenly.
(3) component C catalyst: catalyzer component C formic acid 100%, without the need to special processing, can directly use.
Three, be finished product after curing process slaking, its curing process is as follows:
(1) priming paint: above-mentioned catalyzer component C is added in solidifying agent B component in proportion according to the weight proportion shown in table 1, rock and mix rear all adding in component A, firmly will rock until each component mixes and after reacting and reaching 40 DEG C to temperature completely after container sealing well, what be placed on rolling speed 180rpm rolls in oil machine, rolling slaking 2h, mixture after slaking being taken off from rolling oil machine, being cooled to after room temperature stand-by until it;
(2) finish paint: above-mentioned catalyzer component C is added in solidifying agent B component in proportion according to the weight proportion shown in table 1, rock and mix rear all adding in component A, firmly will rock until each component mixes and after reacting and reaching 40 DEG C to temperature completely after container sealing well, what be placed on rolling speed 180rpm rolls in oil machine, rolling slaking 20h, mixture after slaking being taken off from rolling oil machine, being cooled to after room temperature stand-by until it.
Four, film: carry out film according to the usage quantity of the priming paint shown in table 1 and finish paint, during film, priming paint thickness requires to be sprayed into 45um, and finish paint thickness requires to be sprayed into 10um.
Table 1 embodiment 1 priming paint and each component of finish paint and weight proportion
Component (unit: weight part) Priming paint Finish paint
Component A 3.435 2
B component 1.55 1
Component C 0.015 0.01
The particle diameter of above-mentioned silicon sol used is 10nm; Nano-meter SiO_2 used 2dispersion liquid is the SiO of particle diameter 100nm solids content 20% 2aqueous dispersions.
Embodiment 2
One, priming paint:
(1) component A host:
1. first by silicon sol 52% 200 order nylon net filters, and stir with 600rpm/ minute rotating speed;
2. by uniform for pre-mixing deionized water 1% and butyl glycol ether 1% mixture, join in stirring in silicon sol;
3., in above-mentioned compound, under 600rpm/ minute whipped state, wilkinite 0.6% is added, and with the Rate Dispersion 5 minutes of 800rpm/ minute;
4. in above-mentioned compound, under 600rpm/ minute whipped state, titanium dioxide 25% and aluminum oxide abrasion-resistant powder 5% is added, with the Rate Dispersion 15 minutes of 800rpm/ minute;
5. used by above-mentioned compound basket sand machine to be ground to fineness and be less than 10um, add Nano-meter SiO_2 with 600rpm/ minute under whipped state 2dispersion liquid 15.4%, and the finished product stirring system after 10 minutes for 600rpm/ minute.
The viscosity of priming paint finished product is 12 ± 3 seconds, and described viscosity DIN4 cup, measures at 23 DEG C of temperature.
(2) B component solidifying agent: methyltrimethoxy silane 96%, silicone oil 4% are rolled under 100rpm/ minute speed evenly.
(3) component C catalyst: catalyzer component C formic acid 100%, without the need to special processing, can directly use.
Two, finish paint:
(1) component A host:
1. first by silicon sol 66% 200 order nylon net filters, and stir with 600rpm/ minute rotating speed;
2. by uniform for pre-mixing deionized water 30% and butyl glycol ether 4% mixture, join in stirring in silicon sol;
(2) B component solidifying agent: methyltrimethoxy silane 96%, silicone oil 4% are rolled under 100rpm/ minute speed evenly.
(3) component C catalyst: catalyzer component C formic acid 100%, without the need to special processing, can directly use.
Three, be finished product after curing process slaking, its curing process is as follows:
(1) priming paint: above-mentioned catalyzer component C is added in solidifying agent B component in proportion according to the weight proportion shown in table 2, rock and mix rear all adding in component A, firmly will rock until each component mixes and after reacting and reaching 30 DEG C to temperature completely after container sealing well, what be placed on rolling speed 120rpm rolls in oil machine, rolling slaking 4h, mixture after slaking being taken off from rolling oil machine, being cooled to after room temperature stand-by until it;
(2) finish paint: above-mentioned catalyzer component C is added in solidifying agent B component in proportion according to the weight proportion shown in table 2, rock and mix rear all adding in component A, firmly will rock until each component mixes and after reacting and reaching 30 DEG C to temperature completely after container sealing well, what be placed on rolling speed 120rpm rolls in oil machine, rolling slaking 24h, mixture after slaking being taken off from rolling oil machine, being cooled to after room temperature stand-by until it.
Four, film: carry out film according to the usage quantity of the priming paint shown in table 2 and finish paint, during film, priming paint thickness requires to be sprayed into 30um, and finish paint thickness requires to be sprayed into 3um.
Table 2 embodiment 2 priming paint and each component of finish paint and weight proportion
Component (unit: weight part) Priming paint Finish paint
Component A 2 2
B component 1 1.5
Component C 0.01 0.02
The particle diameter of above-mentioned silicon sol used is 16nm; Nano-meter SiO_2 used 2dispersion liquid is the SiO of particle diameter 120nm solids content 20% 2aqueous dispersions.
Embodiment 3
One, priming paint:
(1) component A host:
1. first by silicon sol 40% 240 order nylon net filters, and stir with 700rpm/ minute rotating speed;
2., under 700rpm/ minute whipped state, wilkinite 0.7% is added, and with the Rate Dispersion 5 minutes of 900rpm/ minute;
3. in above-mentioned compound, under 700rpm/ minute whipped state, titanium dioxide 32.3% and aluminum oxide abrasion-resistant powder 7% is added, with the Rate Dispersion 15 minutes of 900rpm/ minute;
4. used by above-mentioned compound basket sand machine to be ground to fineness and be less than 10um, add Nano-meter SiO_2 with 700rpm/ minute under whipped state 2dispersion liquid 20%, and the finished product made after stirring 10 minutes with 700rpm/ minute.
The viscosity of priming paint finished product is 12 ± 3 seconds, and described viscosity DIN4 cup, measures at 23 DEG C of temperature.
(2) B component solidifying agent: methyltrimethoxy silane 97%, silicone oil 3% are rolled under 110rpm/ minute speed evenly.
(3) component C catalyst: catalyzer component C formic acid 100%, without the need to special processing, can directly use.
Two, finish paint:
(1) component A host:
1. first by silicon sol 74% 240 order nylon net filters, and stir with 700rpm/ minute rotating speed;
2. by uniform for pre-mixing deionized water 20% and butyl glycol ether 3% mixture, join in stirring in silicon sol;
3., in above-mentioned compound, under 700rpm/ minute whipped state, pearl powder 3% is added, and with the Rate Dispersion 5 minutes of 900rpm/ minute.
(2) B component solidifying agent: methyltrimethoxy silane 97%, silicone oil 3% are rolled under 110rpm/ minute speed evenly.
(3) component C catalyst: catalyzer component C formic acid 100%, without the need to special processing, can directly use.
Three, be finished product after curing process slaking, its curing process is as follows:
(1) priming paint: above-mentioned catalyzer component C is added in solidifying agent B component in proportion according to the weight proportion shown in table 3, rock and mix rear all adding in component A, firmly will rock until each component mixes and after reacting and reaching 35 DEG C to temperature completely after container sealing well, what be placed on rolling speed 150rpm rolls in oil machine, rolling slaking 3h, mixture after slaking being taken off from rolling oil machine, being cooled to after room temperature stand-by until it;
(2) finish paint: above-mentioned catalyzer component C is added in solidifying agent B component in proportion according to the weight proportion shown in table 3, rock and mix rear all adding in component A, firmly will rock until each component mixes and after reacting and reaching 35 DEG C to temperature completely after container sealing well, what be placed on rolling speed 150rpm rolls in oil machine, rolling slaking 22h, mixture after slaking being taken off from rolling oil machine, being cooled to after room temperature stand-by until it.
Four, film: carry out film according to the usage quantity of the priming paint shown in table 3 and finish paint, during film, priming paint thickness requires to be sprayed into 40um, and finish paint thickness requires to be sprayed into 6um.
Table 3 embodiment 3 priming paint and each component of finish paint and weight proportion
Component (unit: weight part) Priming paint Finish paint
Component A 4 2
B component 1.5 1
Component C 0.02 0.015
The particle diameter of above-mentioned silicon sol used is 12nm; Nano-meter SiO_2 used 2dispersion liquid is the SiO of particle diameter 110nm solids content 20% 2aqueous dispersions.
Embodiment 1 ~ 3 pearl powder used is pearl powder is Merck silvery white pearlescence Iriodin153.
Film performance is tested
The film performance test result that embodiment 1 prepares is as shown in table 4.
Table 4 film performance is tested
The above is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive without departing from the spirit and concept in the present invention or associate, all should think and be included within protection scope of the present invention.

Claims (5)

1. there is a ceramic coating for antibacterial, be made up of priming paint and finish paint two portions, it is characterized in that described priming paint and finish paint form by component A host, B component solidifying agent and component C catalyst;
The component A of described priming paint and finish paint: B component: component C is by weight ratio: 2-4:1-2:0.01-0.02;
The raw material of described primer composition A host by weight percentage ratio is:
The raw material of described finish paint component A host by weight percentage ratio is:
The particle diameter of described silicon sol is 9-17nm;
Described Nano-meter SiO_2 2dispersion liquid is the SiO of particle diameter 100-120nm solids content 20% 2aqueous dispersions;
The raw material of described priming paint and finish paint B component solidifying agent by weight percentage ratio is:
Methyltrimethoxy silane 96-98%
Silicone oil 2-4;
The raw material of described priming paint and finish paint component C catalyst by weight percentage ratio is:
Formic acid 100%.
2. the ceramic coating with antibacterial according to claim 1, is characterized in that described mineral dye is titanium dioxide.
3. the ceramic coating with antibacterial according to claim 1, is characterized in that described pearl powder is Merck silvery white pearlescence Iriodin153.
4. the preparation method with the ceramic coating of antibacterial described in claim 1 or 2, is characterized in that concrete steps are:
(1) primer composition A host:
1. first by silicon sol 200-300 order nylon net filter, and stir with 600-800rpm/ minute rotating speed;
2. by uniform for pre-mixing deionized water and butyl glycol ether mixture, join in stirring in silicon sol;
3., in above-mentioned compound, under 600-800rpm/ minute whipped state, wilkinite is added, and with the Rate Dispersion 5 minutes of 800-1000rpm/ minute;
4. in above-mentioned compound, under 600-800rpm/ minute whipped state, mineral dye and aluminum oxide abrasion-resistant powder is added, with the Rate Dispersion 15-20 minute of 800-1000rpm/ minute;
5. used by above-mentioned compound basket sand machine to be ground to after fineness is less than 15 μm, add Nano-meter SiO_2 with 600-800rpm/ minute under whipped state 2dispersion liquid, and to stir after 5-10 minute the finished product of system;
The viscosity of described finished product is 12 ± 3 seconds, and described viscosity DIN4 cup, measures at 23 DEG C of temperature;
(2) finish paint component A host:
1. first by silicon sol 200-300 order nylon net filter, and stir with 600-800rpm/ minute rotating speed;
2. by uniform for pre-mixing deionized water and butyl glycol ether mixture, join in stirring in silicon sol;
3., in above-mentioned compound, under 600-800rpm/ minute whipped state, pearl powder is added, and with the Rate Dispersion 5 minutes of 800-1000rpm/ minute;
The viscosity of described finished product is 8-12 second, and described viscosity DIN4 cup, measures at 23 DEG C of temperature;
(3) priming paint and finish paint B component solidifying agent:
Methyltrimethoxy silane, silicone oil is even at 100-120rpm/ minute speed scroll;
(4) priming paint and finish paint component C catalyst:
Catalyzer component C: formic acid, without the need to special processing, can directly use;
(5) with priming and each component of finish paint by being finished product after curing process slaking, described curing process is as follows:
Priming paint: above-mentioned catalyzer component C is added in solidifying agent B component in proportion, mix rear all adding in component A, by container sealing well afterwards with to mix completely and after reacting and reaching 30-40 DEG C to temperature, what be placed on rolling speed 120-180rpm rolls in oil machine, rolling slaking 2-4h, mixture after slaking being taken off from rolling oil machine, being cooled to after room temperature stand-by until it;
Finish paint: above-mentioned catalyzer component C is added in solidifying agent B component in proportion, mix rear all adding in component A, to mix completely after container sealing is good and after reacting and reaching 30-40 DEG C to temperature, what be placed on rolling speed 120-180rpm rolls in oil machine, rolling slaking 20-24h, mixture after slaking being taken off from rolling oil machine, being cooled to after room temperature stand-by until it;
(6) when using, priming paint thickness requires to be sprayed into 30-45um, and finish paint thickness requires to be sprayed into 3-10um.
5. preparation method according to claim 4, to is characterized in that in described whole dispersion, stirring and process of lapping that temperature is not less than 10 DEG C and not higher than 35 DEG C.
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