CN114891425A - Preparation method of high-durability nano composite antibacterial paint - Google Patents

Preparation method of high-durability nano composite antibacterial paint Download PDF

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Publication number
CN114891425A
CN114891425A CN202210684606.6A CN202210684606A CN114891425A CN 114891425 A CN114891425 A CN 114891425A CN 202210684606 A CN202210684606 A CN 202210684606A CN 114891425 A CN114891425 A CN 114891425A
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China
Prior art keywords
composite antibacterial
nano composite
stirring
titanium dioxide
preparation
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CN202210684606.6A
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Chinese (zh)
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胡金海
陈海平
张永亮
吴小飞
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Guangzhou Xiangming Environmental Protection New Material Co ltd
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Guangzhou Xiangming Environmental Protection New Material Co ltd
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Priority to CN202210684606.6A priority Critical patent/CN114891425A/en
Publication of CN114891425A publication Critical patent/CN114891425A/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/08Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05Stirrers
    • B01F27/09Stirrers characterised by the mounting of the stirrers with respect to the receptacle
    • B01F27/091Stirrers characterised by the mounting of the stirrers with respect to the receptacle with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/95Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis
    • B01F27/951Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis with at least one stirrer mounted on the sun axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10Maintenance of mixers
    • B01F35/12Maintenance of mixers using mechanical means
    • B01F35/123Maintenance of mixers using mechanical means using scrapers for cleaning mixers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/30Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2296Oxides; Hydroxides of metals of zinc
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Plant Pathology (AREA)
  • Mechanical Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention discloses a preparation method of a high-durability nano composite antibacterial paint, which comprises the steps of weighing the components of the nano composite antibacterial paint in sequence according to the weight ratio, adding a nano composite antibacterial agent and ionized water into a preparation container, stirring for 10-20min under the constant temperature state of 65-75 ℃, then adding sodium carboxymethyl cellulose and methyl cellulose into the preparation container, continuously stirring for 10-20min under the constant temperature state, adding an organic silicon modified alkyd resin emulsion and a modified nano titanium dioxide solution into the preparation container, uniformly stirring for 10-20min under the normal temperature state of 15-30 ℃, then adding titanium dioxide and dimethylamine into the preparation container, and continuously stirring for 10-20min under the normal temperature state, thus obtaining the nano composite antibacterial paint. The invention enhances the antibacterial property of the paint and improves the stirring uniformity during paint preparation.

Description

Preparation method of high-durability nano composite antibacterial paint
Technical Field
The invention relates to the technical field of paint preparation, in particular to a preparation method of a high-durability nano composite antibacterial paint.
Background
Paint is a substance in a fluid or powder state, and can uniformly cover and well adhere to the surface of an object to form a solid film. There are solvent-based paints, water-based paints, powder paints, high-energy-ray-curable paints, and the like, which are classified according to the dispersion state of the film-forming material and the pigment. With the development of society, people's daily life and many fields such as building, boats and ships, recirculated cooling water all have antibiotic demand.
The Chinese invention patent (publication number: CN112552806A) discloses a preparation method of a high-durability nano-composite antibacterial paint, the patent prepares the high-durability nano composite antibacterial paint by adding the modified nano titanium dioxide sol, the nano titanium dioxide sol has the advantages of photocatalysis, strong ultraviolet absorption, large surface activity, large specific surface area, easy preparation, good thermal conductivity and the like, the nano titanium dioxide can oxidize and reduce substances such as water, partial organic matters and the like in the air under the excitation of ultraviolet light, the nano titanium dioxide sol has high chemical stability, high heat resistance, high surface activity and the like, and the photocatalytic effect of the nano titanium dioxide sol is based on the decomposition of organic matters, so that the organic matters are oxidized and decomposed into carbon dioxide, water and the like, and the durability of the paint can be effectively improved.
However, the above patents have the following disadvantages: 1. although the above patent can play a part of antibacterial function, the paint is lack of antibacterial components, and the antibacterial effect is not ideal when the paint is in uncertain environments such as humidity; 2. paint need stir it repeatedly at the in-process of preparation for reach better mixed effect, but it lacks effectual agitating unit, and its paint is easily adsorbed at the device inner wall at the stirring in-process, and it is inconvenient to carry out effectual stirring to it and scrapes the wall.
Disclosure of Invention
The invention aims to solve the defects of poor antibacterial effect and uneven stirring in preparation of the existing paint in the prior art, and provides a preparation method of a high-durability nano composite antibacterial paint.
In order to solve the problems of poor antibacterial effect and uneven stirring in preparation of the existing paint in the prior art, the invention adopts the following technical scheme:
a preparation method of a high-durability nano composite antibacterial paint comprises the following specific preparation steps:
s1, the nano composite antibacterial paint comprises a nano composite antibacterial agent, an organic silicon modified alkyd resin emulsion, a modified nano titanium dioxide solution, titanium dioxide, sodium carboxymethyl cellulose, methyl cellulose, dimethylamine and ionized water; the nano composite antibacterial agent is 5-20%, the organic silicon modified alkyd resin emulsion is 22-35%, the modified nano titanium dioxide solution is 8-20%, the titanium dioxide is 5-12%, the sodium carboxymethylcellulose is 2-10%, the methylcellulose is 1-5%, the dimethylamine is 1-5%, the ionized water is 10-40%, and the sum of the components is 100%;
s2, adding the nano-composite antibacterial agent and the ionized water into a preparation container, stirring for 10-20min at a constant temperature of 65-75 ℃, then adding the sodium carboxymethyl cellulose and the methyl cellulose into the preparation container, and continuously stirring for 10-20min at the constant temperature to form jelly-like fluid;
s3, adding the organic silicon modified alkyd resin emulsion and the modified nano titanium dioxide solution into a preparation container, uniformly stirring for 10-20min at the normal temperature of 15-30 ℃, then adding the titanium dioxide and the dimethylamine into the preparation container, and continuously stirring for 10-20min at the normal temperature, thereby obtaining the nano composite antibacterial paint.
Preferably, the nano-composite antibacterial agent comprises nitrogen-modified rice-resistant zinc oxide and silver nitrate, and the silver nitrate is loaded on the nitrogen-modified rice-resistant zinc oxide.
Preferably, the particle diameter of the nitrogen modified rice-resistant zinc oxide is 1-100nm, wherein the mass ratio of the nitrogen modified rice-resistant zinc oxide to the silver nitrate is 1 (0.01-0.03).
Preferably, the organosilicon modified alkyd resin emulsion comprises linseed oil, oxalic acid, phthalic anhydride, styrene, trimellitic anhydride and deionized water; the mass ratio of the linseed oil to the oxalic acid to the phthalic anhydride to the styrene to the trimellitic anhydride to the deionized water is 14:4:2:3:1: 20.
Preferably, the modified nano titanium dioxide solution comprises tetrabutyl titanate, acetic acid, vinyl trimethoxy silane and deionized water, wherein the mass ratio of the tetrabutyl titanate to the acetic acid to the vinyl trimethoxy silane to the deionized water is 5:15:1: 20.
Preferably, the preparation container includes the bottom plate, the top surface middle part of bottom plate is equipped with solid fixed ring, gu be equipped with the bearing ring in fixed ring's the top port, the inside of bearing ring is equipped with the churn, be equipped with automatically controlled heating plate in the bottom of churn, top surface one side of bottom plate is equipped with the curb plate, the top surface of curb plate is equipped with the diaphragm, the top surface middle part of diaphragm is equipped with fixing bearing, fixing bearing's inside is inserted and is equipped with the main shaft, the bottom portion of main shaft extends to and is equipped with a pair of scraper blade in the churn, the both sides of main shaft are equipped with a pair of planet axle, every the bottom portion of planet axle all extends to in the churn, every the lower half section part of planet axle all is equipped with a plurality of pairs of stirring rake, the main shaft passes through planet engagement mechanism and is connected with a pair of planet axle meshing.
Preferably, the planetary meshing mechanism comprises a fixed gear and a planetary gear, an outer ring is arranged on the bottom surface of the transverse plate, an inner ring is arranged in a bottom port of the outer ring, the middle upper portion of the main shaft is sequentially sleeved with the fixed gear and a limiting disc, the limiting disc and the inner ring are arranged in a concentric and parallel mode, an inner gear ring is arranged on the inner wall of the outer ring, the top end portion of each planetary shaft extends into the outer ring and is sleeved with the planetary gear, and each planetary gear is sequentially meshed with the fixed gear and the inner gear ring.
Preferably, be equipped with servo motor between curb plate and the solid fixed ring, servo motor's bottom and the top surface rigid coupling of bottom plate, servo motor's motor shaft tip is equipped with the universal driving shaft, the top surface left side of diaphragm is equipped with linkage bearing, linkage bearing is run through and is extended to the top of diaphragm in the top portion of universal driving shaft.
Preferably, a linkage gear is sleeved at the bottom end of the linkage shaft, an outer gear ring is sleeved at the middle lower part of the stirring barrel, and the linkage gear is connected with the outer gear ring in a meshed mode.
Preferably, the top portion cover of universal driving shaft is equipped with first belt pulley, the top portion cover of main shaft is equipped with the second belt pulley, first belt pulley carries out the transmission through drive belt and second belt pulley and is connected.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by improving the proportion of the nano-composite antibacterial paint and adding the nano-composite antibacterial agent, the nano-composite antibacterial agent integrates the advantages of nano-silver and nano-zinc oxide, so that the antibacterial performance of the paint is further improved, and the antibacterial effect is safer, more stable and more efficient;
2. according to the invention, the preparation container can control the stirring drum to reversely rotate, synchronously drive the main shaft and the scraper to rotate, and drive the planetary shaft and the stirring paddle to perform planetary rotation, and the stirring uniformity during paint preparation is improved by matching the stirring paddle with the scraper;
in conclusion, the invention solves the problems of poor antibacterial effect and uneven stirring in preparation of the existing paint, has compact overall structure design, enhances the antibacterial performance of the paint, and improves the stirring uniformity in preparation of the paint.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a table of the ingredient ratios and antimicrobial tests for the nanocomposite antimicrobial paint of the present invention;
FIG. 2 is a front view of the preparation vessel of the present invention;
FIG. 3 is a front sectional view of the preparation vessel of the present invention;
FIG. 4 is a cross-sectional view of the engagement mechanism of the present invention;
number in the figure: the automatic stirring device comprises a bottom plate 1, a fixed ring 11, a stirring barrel 12, an electric control heating plate 13, an outer gear ring 14, a side plate 2, a transverse plate 21, an outer ring 22, an inner ring 23, a main shaft 24, a scraper 25, a planetary shaft 26, a stirring paddle 27, a servo motor 3, a linkage shaft 31, a linkage gear 32, a driving belt 33, a fixed gear 34, a limiting plate 35, a planetary gear 36 and an inner gear ring 37.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The first embodiment is as follows: the embodiment provides a preparation method of a high-durability nano composite antibacterial paint, and specifically, referring to fig. 1 to 4, the preparation method specifically comprises the following steps:
s1, the nano composite antibacterial paint comprises a nano composite antibacterial agent, an organic silicon modified alkyd resin emulsion, a modified nano titanium dioxide solution, titanium dioxide, sodium carboxymethyl cellulose, methyl cellulose, dimethylamine and ionized water; the antibacterial agent is prepared from 5-20% of a nano composite antibacterial agent, 22-35% of an organic silicon modified alkyd resin emulsion, 8-20% of a modified nano titanium dioxide solution, 5-12% of titanium dioxide, 2-10% of sodium carboxymethylcellulose, 1-5% of methylcellulose, 1-5% of dimethylamine and 10-40% of ionized water, wherein the sum of the components is 100%, and the optimal mass ratio of the nano composite antibacterial agent to the organic silicon modified alkyd resin emulsion to the modified nano titanium dioxide solution to the titanium dioxide to the sodium carboxymethylcellulose to the methylcellulose to the dimethylamine to the ionized water is 17:30:15: 4:2:2: 20;
s2, adding the nano-composite antibacterial agent and the ionized water into a preparation container, stirring for 10-20min at a constant temperature of 65-75 ℃, then adding the sodium carboxymethyl cellulose and the methyl cellulose into the preparation container, and continuously stirring for 10-20min at the constant temperature to form jelly-like fluid;
s3, adding the organic silicon modified alkyd resin emulsion and the modified nano titanium dioxide solution into a preparation container, uniformly stirring for 10-20min at the normal temperature of 15-30 ℃, then adding the titanium dioxide and the dimethylamine into the preparation container, and continuously stirring for 10-20min at the normal temperature, thereby obtaining the nano composite antibacterial paint.
In the specific implementation process, the nano composite antibacterial agent comprises nitrogen modified rice-resistant zinc oxide and silver nitrate, wherein the silver nitrate is loaded on the nitrogen modified rice-resistant zinc oxide, the particle diameter of the nitrogen modified rice-resistant zinc oxide is 1-100nm, and the mass ratio of the nitrogen modified rice-resistant zinc oxide to the silver nitrate is 1 (0.01-0.03).
In the specific implementation process, the organic silicon modified alkyd resin emulsion comprises linseed oil, oxalic acid, phthalic anhydride, styrene, trimellitic anhydride and deionized water; the mass ratio of the linseed oil to the oxalic acid to the phthalic anhydride to the styrene to the trimellitic anhydride to the deionized water is 14:4:2:3:1: 20; the modified nano titanium dioxide solution comprises tetrabutyl titanate, acetic acid, vinyl trimethoxy silane and deionized water, wherein the mass ratio of the tetrabutyl titanate to the acetic acid to the vinyl trimethoxy silane to the deionized water is 5:15:1: 20.
Example two: in the first embodiment, there is a problem that the stirring of the nano composite antibacterial paint is not uniform, therefore, the first embodiment further includes:
in a specific implementation process, as shown in fig. 2 and 4, the preparation container includes a bottom plate 1, a fixing ring 11 is arranged in the middle of the top surface of the bottom plate 1, a concentrically fixed bearing ring is arranged in a top port of the fixing ring 11, a mixing drum 12 with an open top surface is arranged inside the bearing ring, an electrically controlled heating plate 13 is arranged in the bottom of the mixing drum 12, the model of the electrically controlled heating plate 13 is DGLJL1400, the electrically controlled heating plate 13 is started, and under the heating action of the electrically controlled heating plate 13, the temperature in the mixing drum 12 is kept in a constant temperature heating state of 65-75 ℃, or the electrically controlled heating plate 13 is stopped working, so that the temperature in the mixing drum 12 is kept in a normal temperature state of 15-30 ℃;
the bottom plate comprises a bottom plate 1, a side plate 2 vertically fixedly connected to one side of the top surface of the bottom plate 1, a transverse plate 21 transversely fixedly connected to the top surface of the side plate 2, a fixed bearing penetrating through the fixed bearing is arranged in the middle of the top surface of the transverse plate 1, a vertically penetrating main shaft 24 is inserted into the fixed bearing, a pair of scraping plates 25 are arranged in the stirring barrel 12 in a manner that the bottom end of the main shaft 24 extends, a pair of planet shafts 26 are arranged on two sides of the main shaft 24, the bottom end of each planet shaft 26 extends into the stirring barrel 12, a plurality of pairs of stirring paddles 27 are arranged on the lower half part of each planet shaft 26, the main shaft 24 is meshed with the pair of planet shafts 26 through a planet meshing mechanism, the nano composite antibacterial paint is sequentially installed in weight proportion and weighed, and then is added into the stirring barrel 12 for stirring operation.
In the specific implementation process, as shown in fig. 3 and 4, the planetary meshing mechanism includes a fixed gear 34 and a planetary gear 36, an outer ring 22 is disposed on the bottom surface of the transverse plate 21, an inner ring 23 concentrically and fixedly connected is disposed in a bottom port of the outer ring 22, the fixed gear 34 concentrically and fixedly connected and a limiting disc 35 are sequentially sleeved on the middle upper portion of the main shaft 24, the limiting disc 35 and the inner ring 23 are concentrically and flush, an inner gear ring 37 concentrically and fixedly connected is disposed on the inner wall of the outer ring 22, the top end portion of each planetary shaft 26 extends into the outer ring 22 and is sleeved with a planetary gear 36 concentrically and fixedly connected, each planetary gear 36 is sequentially meshed with the fixed gear 34 and the inner gear ring 37, and due to the synchronous meshing action of the planetary gears 36 with the fixed gear 34 and the inner gear ring 37, the fixed gear 34 meshes with the planetary shafts 26 and the stirring paddles 27 to perform planetary rotation.
In the specific implementation process, as shown in fig. 2 and 3, a servo motor 3 with an upward output end is arranged between the side plate 2 and the fixing ring 11, the type of the servo motor 3 is R88M-KE10030H-S2, the bottom of the servo motor 3 is fixedly connected with the top surface of the bottom plate 1, a linkage shaft 31 coaxially connected with the motor shaft end of the servo motor 3 is arranged, a linkage bearing penetrating and fixedly connected with the left side of the top surface of the transverse plate 21 is arranged on the left side of the top surface of the transverse plate 21, the top end of the linkage shaft 31 penetrates through the linkage bearing and extends to the upper side of the transverse plate 21, and a motor shaft of the servo motor 3 drives the linkage shaft 31, the linkage gear 32 and the first belt pulley to synchronously rotate;
the bottom end part of the linkage shaft 31 is sleeved with a linkage gear 32 which is concentrically and fixedly connected, the middle lower part of the mixing drum 12 is sleeved with an outer gear ring 14 which is concentrically and fixedly connected, the linkage gear 32 is meshed with the outer gear ring 14, and the linkage gear 32 is meshed with the outer gear ring 14 and drives the mixing drum 12 to reversely and slowly rotate along the bearing ring; the top portion cover of universal driving shaft 31 is equipped with the first belt pulley of concentric rigid coupling, and the top portion cover of main shaft 24 is equipped with the second belt pulley of concentric rigid coupling, and first belt pulley carries out the transmission through drive belt and second belt pulley and is connected, and first belt pulley drives second belt pulley main shaft 24, fixed gear 34, spacing dish 35, scraper blade 25 through drive belt 33 and rotates for scraper blade 25 rotates along the inner bottom wall of churn 12.
The working principle and the operation method for preparing the container are as follows:
step one, starting the electric control heating plate 13, and keeping the temperature in the stirring cylinder 12 in a constant temperature heating state of 65-75 ℃ under the heating action of the electric control heating plate 13, or stopping the electric control heating plate 13 from working, so that the temperature in the stirring cylinder 12 is kept in a normal temperature state of 15-30 ℃;
step two, starting the servo motor 3, driving a linkage shaft 31, a linkage gear 32 and a first belt pulley to synchronously rotate by a motor shaft of the servo motor 3, and driving an outer gear ring 14 and the mixing drum 12 to slowly rotate along the bearing ring in the opposite direction by meshing of the linkage gear 32;
thirdly, the first belt pulley drives the second belt pulley main shaft 24, the fixed gear 34, the limiting disc 35 and the scraper 25 to rotate through the driving belt 33, so that the scraper 25 rotates along the inner bottom wall of the mixing drum 12, and the fixed gear 34 is meshed with the fixed gear 34 and the inner gear ring 37 to drive the planet shaft 26 and the mixing paddle 27 to rotate in a planet mode due to the synchronous meshing effect of the planet gear 36;
and step four, sequentially installing the nano composite antibacterial paint in a weight ratio for weighing, and then adding the nano composite antibacterial paint into the stirring drum 12 for stirring operation, wherein the stirring operation method is as the steps of S1-S3, so as to obtain the nano composite antibacterial paint.
The invention solves the problems of poor antibacterial effect and uneven stirring during preparation of the existing paint, has compact overall structure design, enhances the antibacterial performance of the paint, and improves the stirring uniformity during paint preparation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. A preparation method of a high-durability nano composite antibacterial paint is characterized by comprising the following specific preparation steps:
s1, the nano composite antibacterial paint comprises a nano composite antibacterial agent, an organic silicon modified alkyd resin emulsion, a modified nano titanium dioxide solution, titanium dioxide, sodium carboxymethyl cellulose, methyl cellulose, dimethylamine and ionized water; the nano composite antibacterial agent is 5-20%, the organic silicon modified alkyd resin emulsion is 22-35%, the modified nano titanium dioxide solution is 8-20%, the titanium dioxide is 5-12%, the sodium carboxymethylcellulose is 2-10%, the methylcellulose is 1-5%, the dimethylamine is 1-5%, the ionized water is 10-40%, and the sum of the components is 100%;
s2, adding the nano-composite antibacterial agent and the ionized water into a preparation container, stirring for 10-20min at a constant temperature of 65-75 ℃, then adding the sodium carboxymethyl cellulose and the methyl cellulose into the preparation container, and continuously stirring for 10-20min at the constant temperature to form jelly-like fluid;
s3, adding the organic silicon modified alkyd resin emulsion and the modified nano titanium dioxide solution into a preparation container, uniformly stirring for 10-20min at the normal temperature of 15-30 ℃, then adding the titanium dioxide and the dimethylamine into the preparation container, and continuously stirring for 10-20min at the normal temperature to obtain the nano composite antibacterial paint.
2. The method for preparing the high-durability nano composite antibacterial paint according to claim 1, characterized in that: the nano composite antibacterial agent comprises nitrogen modified rice-resistant zinc oxide and silver nitrate, wherein the silver nitrate is loaded on the nitrogen modified rice-resistant zinc oxide.
3. The method for preparing the high-durability nano composite antibacterial paint according to claim 2, characterized in that: the particle diameter of the nitrogen modified rice-resistant zinc oxide is 1-100nm, wherein the mass ratio of the nitrogen modified rice-resistant zinc oxide to silver nitrate is 1 (0.01-0.03).
4. The method for preparing the high-durability nano composite antibacterial paint according to claim 1, characterized in that: the organic silicon modified alkyd resin emulsion comprises linseed oil, oxalic acid, phthalic anhydride, styrene, trimellitic anhydride and deionized water; the mass ratio of the linseed oil to the oxalic acid to the phthalic anhydride to the styrene to the trimellitic anhydride to the deionized water is 14:4:2:3:1: 20.
5. The method for preparing the high-durability nano composite antibacterial paint according to claim 1, characterized in that: the modified nano titanium dioxide solution comprises tetrabutyl titanate, acetic acid, vinyl trimethoxy silane and deionized water, wherein the mass ratio of the tetrabutyl titanate to the acetic acid to the vinyl trimethoxy silane to the deionized water is 5:15:1: 20.
6. The method for preparing the high-durability nano composite antibacterial paint according to claim 1, characterized in that: the preparation container comprises a bottom plate (1), a fixing ring (11) is arranged in the middle of the top surface of the bottom plate (1), a bearing ring is arranged in the top port of the fixing ring (11), a stirring cylinder (12) is arranged inside the bearing ring, an electric control heating plate (13) is arranged in the bottom of the stirring cylinder (12), a side plate (2) is arranged on one side of the top surface of the bottom plate (1), a transverse plate (21) is arranged on the top surface of the side plate (2), a fixed bearing is arranged in the middle of the top surface of the transverse plate (1), a main shaft (24) is inserted into the fixed bearing, a pair of scraping plates (25) is arranged in the manner that the bottom end part of the main shaft (24) extends into the stirring cylinder (12), a pair of planet shafts (26) is arranged on two sides of the main shaft (24), the bottom end part of each planet shaft (26) extends into the stirring cylinder (12), and a plurality of pairs of stirring paddles (27) are arranged on the lower half part of each planet shaft (26), the main shaft (24) is meshed and connected with a pair of planetary shafts (26) through a planetary meshing mechanism.
7. The method for preparing the high-durability nano composite antibacterial paint according to claim 6, characterized in that: planetary meshing mechanism includes fixed gear (34), planetary gear (36), the bottom surface of diaphragm (21) is equipped with outer loop (22), be equipped with inner ring (23) in the bottom mouth of outer loop (22), the well upper portion of main shaft (24) is overlapped in proper order and is equipped with fixed gear (34), spacing dish (35) and the concentric parallel and level setting of inner ring (23), the inner wall of outer loop (22) is equipped with inner gear ring (37), every the top portion of planet axle (26) all extends to in outer loop (22) and overlaps and is equipped with planetary gear (36), every planetary gear (36) all are connected with fixed gear (34), inner gear ring (37) meshing in proper order.
8. The method for preparing the high-durability nano composite antibacterial paint according to claim 6, characterized in that: be equipped with servo motor (3) between curb plate (2) and solid fixed ring (11), the bottom of servo motor (3) and the top surface rigid coupling of bottom plate (1), the motor shaft tip of servo motor (3) is equipped with universal driving shaft (31), the top surface left side of diaphragm (21) is equipped with linkage bearing, linkage bearing is run through and extends to the top of diaphragm (21) in the top portion of universal driving shaft (31).
9. The method for preparing the high-durability nano composite antibacterial paint according to claim 8, characterized in that: the bottom end portion cover of universal driving shaft (31) is equipped with linkage gear (32), the well lower part cover of churn (12) is equipped with external gear ring (14), linkage gear (32) are connected with external gear ring (14) meshing.
10. The method for preparing the high-durability nano composite antibacterial paint according to claim 8, characterized in that: the top portion cover of universal driving shaft (31) is equipped with first belt pulley, the top portion cover of main shaft (24) is equipped with the second belt pulley, first belt pulley carries out the transmission through drive belt (33) and second belt pulley and is connected.
CN202210684606.6A 2022-06-16 2022-06-16 Preparation method of high-durability nano composite antibacterial paint Pending CN114891425A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11207165A (en) * 1998-01-22 1999-08-03 Tokushu Kika Kogyo Kk Planetary mixer
CN206285807U (en) * 2016-12-13 2017-06-30 贾学巍 A kind of mixer for polyurethane sealant
CN107057435A (en) * 2017-05-11 2017-08-18 佛山实瑞先导材料研究院(普通合伙) A kind of nano composite antibacterial coating and preparation method thereof
CN208943969U (en) * 2018-09-30 2019-06-07 周口万德生物有机肥有限公司 A kind of composite fertilizer material mixing arrangement
CN112552806A (en) * 2021-01-13 2021-03-26 时嘉 Preparation method of high-durability nano composite antibacterial paint
CN214681404U (en) * 2020-12-29 2021-11-12 解晓清 Paint stirring and blending device
CN214716322U (en) * 2021-01-05 2021-11-16 杭州舒鹏纺织涂层有限公司 Coating processing workshop prevents agitating unit that coating subsides
CN114106641A (en) * 2021-12-31 2022-03-01 贵州文泰防水技术有限公司 Preparation method of environment-friendly waterproof coating

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11207165A (en) * 1998-01-22 1999-08-03 Tokushu Kika Kogyo Kk Planetary mixer
CN206285807U (en) * 2016-12-13 2017-06-30 贾学巍 A kind of mixer for polyurethane sealant
CN107057435A (en) * 2017-05-11 2017-08-18 佛山实瑞先导材料研究院(普通合伙) A kind of nano composite antibacterial coating and preparation method thereof
CN208943969U (en) * 2018-09-30 2019-06-07 周口万德生物有机肥有限公司 A kind of composite fertilizer material mixing arrangement
CN214681404U (en) * 2020-12-29 2021-11-12 解晓清 Paint stirring and blending device
CN214716322U (en) * 2021-01-05 2021-11-16 杭州舒鹏纺织涂层有限公司 Coating processing workshop prevents agitating unit that coating subsides
CN112552806A (en) * 2021-01-13 2021-03-26 时嘉 Preparation method of high-durability nano composite antibacterial paint
CN114106641A (en) * 2021-12-31 2022-03-01 贵州文泰防水技术有限公司 Preparation method of environment-friendly waterproof coating

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