CN113604128B - Binding agent for easy-to-clean coating on surface of food machinery - Google Patents

Binding agent for easy-to-clean coating on surface of food machinery Download PDF

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Publication number
CN113604128B
CN113604128B CN202110774954.8A CN202110774954A CN113604128B CN 113604128 B CN113604128 B CN 113604128B CN 202110774954 A CN202110774954 A CN 202110774954A CN 113604128 B CN113604128 B CN 113604128B
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epoxy resin
modifier
bonding agent
filler
initiator
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CN113604128A (en
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周圣煜
黄蔓鑫
张江涛
戴宇辉
杜冬生
杨建忠
刘贺路
周俊
周振平
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Hubei Jintianye Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
    • C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2244—Oxides; Hydroxides of metals of zirconium

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Epoxy Resins (AREA)

Abstract

The invention relates to a binding agent for a coating easy to clean on the surface of food machinery, belonging to the field of food machinery. Comprises the following components in percentage by weight: 50-55 wt% of epoxy resin, 15-20 wt% of modifier, 5-7 wt% of amine curing agent, 0.2-1 wt% of initiator, 9-12 wt% of diluent and 5-15 wt% of filler. The bonding agent prepared by adopting the epoxy resin, the modifier, the amine curing agent and the metal oxide filler as basic components has excellent wear resistance, high temperature resistance and basal plane binding performance, and the bonding agent has high hardness and good adhesive force.

Description

Binding agent for easy-to-clean coating on surface of food machinery
Technical Field
The invention relates to a binding agent for a coating easy to clean on the surface of food machinery, belonging to the field of food machinery.
Background
In food processing, both primary processing and finishing generally include steps of crushing, pulverizing, stirring, heating, and the like of food. These processes require the use of corresponding mechanical equipment to contact the food, solvents, additives, etc. Food processing tools will be in a long term in the working conditions of being polished, and the processed surface often adheres to materials, affecting the sanitary conditions. The materials such as solvents, additives and the like in the machining process will also impact the machining tool which has been ground physically and chemically. Therefore, it is often necessary to apply a coating to the surface of the food apparatus that is not easily adhered and is easily cleaned. Easy-to-clean coatings generally do not bond well to food machinery. Since food machinery often requires grinding and drying, certain hardness and high temperature resistance are also required.
The invention uses the epoxy resin as the raw material for preparing the binding agent, the epoxy resin has good chemical stability, thermal stability, excellent mechanical property and adhesive property, and the prepared binding agent has good adhesive property, can adapt to the high-temperature working environment of food machinery and is suitable for being used as the binding agent of the food machinery.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention aims to provide a bonding agent for a coating on the surface of a food machine, which is easy to clean.
The epoxy resin bonding agent prepared by the invention has excellent adhesive capacity with a metal matrix, and has excellent high temperature resistance and friction resistance. In order to achieve the purpose, the invention adopts the following technical scheme: a bonding agent for an easy-to-clean coating on the surface of food machinery comprises the following components in percentage by weight: 50-55 wt% of epoxy resin, 15-20 wt% of modifier, 5-7 wt% of amine curing agent, 0.2-1 wt% of initiator, 9-12 wt% of diluent and 5-15 wt% of filler.
Preferably, the coating binder for food machinery comprises the following components in percentage by weight: 52-55 wt% of epoxy resin, 18-20 wt% of modifier, 5-6 wt% of amine curing agent, 0.3-0.5 wt% of initiator, 10-12 wt% of diluent and 7-12 wt% of filler. The epoxy resin is allyl glycidyl ether. The filler of the invention is titanium dioxide or zirconium dioxide and the like. The inorganic filler has excellent hardness and wear resistance, and can further improve the hardness and the wear resistance of the binding agent when used in binding agent ingredients. The epoxy resin is modified, so that the uniformity of the epoxy resin binder is not affected after the inorganic filler is added, and the low friction coefficient of the binder can be ensured. The particle size of the filler is 20-100 nm.
The modifier is dimethyl diallyl ammonium chloride. The modified epoxy resin is used for copolymerization modification of epoxy resin, hydrophilic groups are introduced into the epoxy resin, the hydrophilic performance of the epoxy resin is improved, and the particle dispersibility, the adhesiveness and the hardness of the modified epoxy resin can be greatly improved.
The amine curing agent is N-methyl ethylenediamine or N-ethyl ethylenediamine. The amine curing agent can perform polyaddition reaction with the epoxy resin, so that the epoxy resin has a three-dimensional network structure, and the adhesion of the epoxy resin is improved.
The diluent is one or more of glycerol glycidyl ether, diglycerol glycidyl ether and sorbitol glycidyl ether. The epoxy resin bonding agent can be used for aluminum or aluminum-based alloy, iron-based alloy, stainless steel or nickel-based metal surfaces, and galvanized and aluminized steel plates and stainless steel surfaces. The metal surface should be degreased and degreased before coating, and may be degreased using any known method, for example, in an acidic, alkaline or organic solvent. In addition, to further improve adhesion, the metal surface may be roughened, for example by sandblasting or grinding, although these steps are not necessary. The epoxy resin binder can be applied to the surface of the mechanical material by a conventional coating method, for example, brushing, spraying and the like, and the binder is baked after the coating, wherein the temperature is preferably between 100 ℃ and 300 ℃.
The preparation method of the epoxy resin bonding agent comprises the following steps:
the method comprises the following steps: preparation of modified epoxy resin
Firstly, putting epoxy resin and a modifier into a reaction kettle for stirring; heating the mixture to 75 ℃ in a water bath, adding an initiator into the reaction kettle, reacting for 2 hours at a constant temperature, cooling and discharging to obtain the amine modified epoxy resin.
Step two: curing of modified epoxy resins
And (3) putting the obtained amine modified epoxy resin, amine curing agent and diluent into a reaction kettle, stirring for 5 minutes, adding filler under the stirring condition, uniformly stirring, standing and curing for more than 15 minutes. Obtaining the epoxy resin bonding agent for food machinery.
In another aspect, the present invention also provides an epoxy resin binder for food machinery, wherein the binder is obtained by coating the epoxy resin composition of the present invention on the surface of the food machinery and then drying the coating. The thickness of the binding agent of the invention is between 30 and 50 μm. Preferably, the binding agent is between 40-50 μm. A third aspect of the invention provides a method of using a binding agent of the invention, comprising the steps of: the surface of the base material is polished by sand paper with 400 meshes until the base material is completely covered with lines, and then the base material is cleaned by absolute ethyl alcohol, cleaned by thinner and then wiped. And after the bonding agent is sprayed on the surface of the food machinery, drying at the temperature of 100-300 ℃.
The food machinery material can be aluminum or aluminum-based alloy, iron-based alloy, copper-based alloy, stainless steel or nickel-based metal, and galvanized and aluminized steel plates.
The epoxy resin is used as a basic raw material to prepare the bonding agent, the epoxy resin has excellent bonding strength and strong high temperature resistance and durability, the prepared bonding agent also has excellent durability, high temperature resistance and adhesion performance, can be firmly attached to the surface of a food machine, and meanwhile, the epoxy resin bonding agent also has the performances of sealing, leakage prevention, insulation and the like, so that the bonding agent has a better protection effect on the food machine.
According to the invention, the epoxy resin is subjected to graft modification by using the modifier, the benzoyl peroxide is used as an initiator, the modifier and the epoxy resin are subjected to graft copolymerization, the modifier has a cationic amino functional group and has excellent hydrophilic performance, the modified epoxy resin has a hydrophilic amino group, the hydrophilicity is better, the modified epoxy resin has good water dispersibility, and the bonding agent prepared by the modified epoxy resin has excellent dispersibility and can further improve the smoothness of the surface of a machine.
According to the invention, the amine curing agent is adopted to cure the epoxy resin, so that the molecules of the epoxy resin form a more stable three-dimensional cross-linked network, the cured epoxy resin has better cementing strength, and the physical and mechanical properties are improved, so that the prepared bonding agent has more excellent wear resistance.
The invention also adds the inorganic fillers of titanium oxide, zirconium oxide and the like as auxiliary materials, and the water-based epoxy resin can be well connected with the inorganic fillers, thereby further improving the wear-resisting and durable performances of the finished product of the bonding agent.
The modified epoxy resin prepared by the invention has better solubility in the aqueous epoxy monomer, and the aqueous epoxy monomer can participate in the curing process of the epoxy resin while reducing the viscosity of the system, so that the curing performance of the epoxy resin is stabilized, and the modified epoxy resin plays an important role in the whole epoxy resin binder system.
The epoxy resin binder does not contain polytetrafluoroethylene, and is healthier and safer. The product does not contain halogenated hydrocarbon, benzene, toluene, xylene, formaldehyde and compounds of heavy metals of lead, cadmium, chromium and mercury, the contents of the heavy metals and harmful substances of the product meet the ROHS instruction and standard, and the product belongs to a green and environment-friendly product.
Detailed Description
A bonding agent for an easy-cleaning coating on the surface of a food machine comprises the following components in percentage by weight: 50-55 wt% of epoxy resin, 15-20 wt% of modifier, 5-7 wt% of amine curing agent, 0.2-1 wt% of initiator, 9-12 wt% of diluent and 5-15 wt% of filler.
Preferably, the binding agent comprises the following components in percentage by weight: 52-55 wt% of epoxy resin, 18-20 wt% of modifier, 5-6 wt% of amine curing agent, 0.3-0.5 wt% of initiator, 10-12 wt% of diluent and 7-12 wt% of filler.
The epoxy resin is allyl glycidyl ether.
The modifier can adopt dimethyl diallyl ammonium chloride. The dimethyl diallyl ammonium chloride is used in the modification process of the epoxy resin, and the amino group can provide hydrophilic property for the epoxy resin monomer, so that the prepared modified epoxy resin becomes a waterborne epoxy resin.
The amine curing agent is N-methyl ethylenediamine or N-ethyl ethylenediamine.
The initiator is benzoyl peroxide which is used as an oil-soluble initiator, so that the polymerization reaction of the epoxy resin and the modifier can be better initiated, and the modification efficiency of the epoxy resin is improved.
The diluent is one or more of glycerol glycidyl ether, diglycerol glycidyl ether and sorbitol glycidyl ether. The diluent used in the invention is a water-based epoxy monomer, and the water-based epoxy monomer has good solubility to the modified epoxy resin in the invention and can play a role in diluting the cured epoxy resin.
The filler is an important component of the binding agent, has a reinforcing effect, and improves the properties of the coating such as adhesive force, hardness, impact resistance and the like.
Example 1 preparation of modified epoxy resin
500 g of allyl glycidyl ether and 195 g of dimethyl diallyl ammonium chloride are mixed and added into a reaction kettle, the mixture is heated to 75 ℃ in a water bath, 3 g of benzoyl peroxide is added after stirring and dissolving, the mixture is stirred at constant temperature continuously and reacts for 2 hours, and the epoxy resin modified by ammonia is obtained after cooling and discharging.
Example 2
695 g of the obtained ammonia modified epoxy resin and 62 g of N-methyl ethylenediamine are put into a reaction kettle, stirred for 5 minutes, 70 g of titanium dioxide filler is put into the reaction kettle under the stirring condition, the mixture is stirred uniformly, kept stand and cured for 15 minutes, and 105 g of glycerol glycidyl ether is added into the mixture for dilution. Filtering with a filter screen of 200 meshes to obtain the epoxy resin bonding agent for the food machinery.
The surface of the base material is polished by sand paper with 400 meshes until the base material is completely covered with lines, and then the base material is cleaned by absolute ethyl alcohol, cleaned by glycerol glycidyl ether diluent and then wiped. Spraying the bonding agent to 75 microns in wet thickness. The binding force is tested to reach 0 grade by 15 hours of grid drawing method, after 24 hours of drying, the roughness of the binding agent is polished by 400-mesh sand paper until no light reflection is caused, and the roughness is estimated to be 15 microns. The non-woven fabric is used for dry wiping, and the easy-cleaning functional coating is sprayed, wherein the wet thickness is 40 microns. It is used after air drying.
Example 3
680 g of the obtained ammonia modified epoxy resin and 54 g of N-methyl ethylenediamine are put into a reaction kettle and stirred for 5 minutes, and the rotating speed is controlled at 500-800 RPM. 75 g of zirconium dioxide filler is added under the condition of stirring, the mixture is stirred uniformly, kept stand and cured for 18 minutes, and discharged and added with 115 g of sorbitol glycidyl ether for dilution. Filtering with a filter screen of 200 meshes to obtain the epoxy resin bonding agent for the food machinery.
And (3) polishing the surface of the base material by using sand paper with a 360-mesh screen until the surface is completely covered with lines, cleaning the surface by using absolute ethyl alcohol, and cleaning the surface by using glycerol glycidyl ether diluent. Spraying the bonding agent to the surface of the substrate with a wet thickness of 60 microns. The binding force is tested to reach 0 grade by 15 hours of grid drawing method, after 24 hours of drying, the roughness of the binding agent is polished by 400-mesh sand paper until no light reflection is caused, and the roughness is estimated to be 15 microns. The non-woven fabric is used for dry wiping, and the easy-cleaning functional coating is sprayed, wherein the wet thickness is 35 microns. It is used after air drying.
Example 4
690 g of the obtained ammonia-modified epoxy resin and 57 g of N-ethyl ethylenediamine are put into a reaction kettle and stirred for 5 minutes, and the rotating speed is controlled at 500-800 RPM. 96 g of zirconium dioxide filler is added under the condition of stirring, the mixture is stirred uniformly, kept stand and cured for 20 minutes, and then 120 g of diglycerol glycidyl ether is added for dilution. Filtering with a filter screen of 200 meshes to obtain the epoxy resin bonding agent for the food machinery.
The surface of the base material is polished by sand paper with 370 meshes until the base material is completely covered with lines, and then the base material is cleaned by absolute ethyl alcohol, cleaned by glycerol glycidyl ether diluent and then wiped. The wet thickness of the binder is 65 microns. The binding force is tested to reach 0 grade by 15 hours of grid drawing method, after 24 hours of drying, the roughness of the binding agent is polished by 400-mesh sand paper until no light reflection is caused, and the roughness is estimated to be 15 microns. The non-woven fabric is used for dry wiping, and the easy-cleaning functional coating is sprayed, wherein the wet thickness is 50 microns. It is used after air drying.
Example 5
670 g of the obtained ammonia modified epoxy resin and 57 g of N-methyl ethylenediamine are put into a reaction kettle and stirred for 5 minutes, and the rotating speed is controlled at 500-800 RPM. 105 g of titanium dioxide filler is added under the condition of stirring, the mixture is stirred uniformly, kept stand and cured for 22 minutes, and then discharged and added with 112 g of sorbitol glycidyl ether for dilution. Filtering with a filter screen of 200 meshes to obtain the epoxy resin bonding agent for the food machinery.
And (3) polishing the surface of the base material by using sand paper with a 360-mesh screen until the surface is completely covered with lines, cleaning the surface by using absolute ethyl alcohol, and cleaning the surface by using glycerol glycidyl ether diluent. Spraying the bonding agent to the surface of the substrate with a wet thickness of 90 microns. The binding force is tested to reach 0 grade by 15 hours of grid drawing method, after 24 hours of drying, the roughness of the binding agent is polished by 400-mesh sand paper until no light reflection is caused, and the roughness is estimated to be 15 microns. The non-woven fabric is used for dry wiping, and the functional coating starts to be sprayed, wherein the wet thickness is 40 microns. It is used after air drying.
Example 6
685 g of the obtained ammonia modified epoxy resin, 7 g of the silane coupling agent and 59 g of N-ethyl ethylenediamine are put into a reaction kettle and stirred for 5 minutes, and the rotating speed is controlled at 500-800 RPM. Under the condition of stirring, 115 g of titanium dioxide filler is added, the mixture is uniformly stirred, the mixture is kept stand and aged for 25 minutes, and 110 g of diglycerol glycidyl ether is added for dilution after discharging. Filtering with a filter screen of 200 meshes to obtain the epoxy resin bonding agent for the food machinery.
And (3) polishing the surface of the base material by 390-mesh sand paper until the surface is completely covered with lines, cleaning the surface by using absolute ethyl alcohol, cleaning the surface by using glycerol glycidyl ether diluent, and cleaning the surface by using glycerol glycidyl ether diluent. Spraying the wet thickness of the bonding agent to be 85 micrometers. The binding force is tested to reach 0 grade by 15 hours of grid drawing method, after 24 hours of drying, the roughness of the binding agent is polished by 400-mesh sand paper until no light reflection is caused, and the roughness is estimated to be 15 microns. The non-woven fabric is used for dry wiping, and the easy-cleaning functional coating is sprayed, wherein the wet thickness is 35 microns. It is used after air drying.
Example 7
660 g of the obtained ammonia modified epoxy resin, 5 g of the silane coupling agent and 50 g of N-ethyl ethylenediamine are put into a reaction kettle and stirred for 5 minutes, and the rotating speed is controlled at 500-800 RPM. 85 g of zirconium dioxide filler is added under the condition of stirring, the mixture is stirred uniformly, kept stand and cured for 15 minutes, and then 100 g of sorbitol glycidyl ether is added for dilution. Filtering with a filter screen of 200 meshes to obtain the epoxy resin bonding agent for the food machinery.
The surface of the base material is polished by sand paper with 400 meshes until the base material is completely covered with lines, and then the base material is cleaned by absolute ethyl alcohol, cleaned by diglycerol glycidyl ether diluent and then wiped. The wet thickness of the binder is 65 microns. The binding force is tested to reach 0 grade by 15 hours of grid drawing method, after 24 hours of drying, the roughness of the binding agent is polished by 400-mesh sand paper until no light reflection is caused, and the roughness is estimated to be 15 microns. The non-woven fabric is used for dry wiping, and the easy-cleaning functional coating is sprayed, wherein the wet thickness is 40 microns. It is used after air drying.
Tests show that the epoxy resin binder obtained in the examples 2-7 does not contain prohibited components of the tobacco, such as polytetrafluoroethylene, heavy metal and toxic organic matters. The hard base surface binding force (GB/T5210-2006), abrasion resistance hardness (GB/T1768-2006), self-drying time (GB/T1728-1979) and high temperature resistance results of the binding agent are shown in Table 1.
TABLE 1
Basal plane binding force Hardness of wear resistance High temperature resistance Time of self-drying
Example 2 16MPa 9H No crack and no fall off at 150 ℃ for 100 hours 24h
Example 3 16MPa 10H No crack and no fall off at 150 ℃ for 100 hours 24h
Example 4 17MPa 10H No crack and no fall off at 150 ℃ for 100 hours 24h
Example 5 16MPa 9H No crack and shedding at 150 ℃ for 100 hours 24h
Example 6 16MPa 9H No crack and no fall off at 150 ℃ for 100 hours 24h
Example 7 17MPa 9H No crack and no fall off at 150 ℃ for 100 hours 24h

Claims (5)

1. The bonding agent for the easy-to-clean coating on the surface of the food machinery is characterized by comprising the following components in percentage by weight: 50-55 wt% of epoxy resin, 15-20 wt% of modifier, 5-7 wt% of amine curing agent, 0.2-1 wt% of initiator, 9-12 wt% of diluent and 5-15 wt% of filler;
the initiator is benzoyl peroxide, the epoxy resin is allyl glycidyl ether, the modifier is dimethyl diallyl ammonium chloride, the amine curing agent is N-methyl ethylenediamine or N-ethyl ethylenediamine, and the diluent is one or more of glycerol glycidyl ether, diglycerol glycidyl ether and sorbitol glycidyl ether;
the preparation process of the modified epoxy resin comprises the following steps: firstly, putting epoxy resin and a modifier into a reaction kettle for stirring; heating the mixture to 75 ℃ in a water bath, adding an initiator into the reaction kettle, reacting for 2 hours at a constant temperature, cooling and discharging to obtain the amine modified epoxy resin.
2. The binding agent according to claim 1, comprising the following components in weight percent: 52-55 wt% of epoxy resin, 18-20 wt% of modifier, 5-6 wt% of amine curing agent, 0.3-0.5 wt% of initiator, 10-12 wt% of diluent and 7-12 wt% of filler.
3. The bonding agent according to claim 1, wherein the filler is titanium dioxide or zirconium dioxide, and the particle size of the filler is 20-100 nm.
4. The method for preparing the bonding agent for the easy-to-clean coating on the surface of the food machinery as claimed in claim 1, wherein the bonding agent comprises the following steps:
the method comprises the following steps: preparation of modified epoxy resin
Firstly, putting epoxy resin and a modifier into a reaction kettle for stirring; heating to 75 ℃ in a water bath, adding an initiator into the reaction kettle, reacting for 2 hours at a constant temperature, cooling and discharging to obtain amine modified epoxy resin;
step two: curing of modified epoxy resins
And putting the obtained amine modified epoxy resin, amine curing agent and diluent into a reaction kettle, stirring for 5 minutes, adding filler under the stirring condition, uniformly stirring, standing and curing for more than 15 minutes to obtain the bonding agent for the easy-to-clean coating on the surface of the food machinery.
5. The method according to claim 4, wherein the material of the food machine is an aluminum-based alloy, an iron-based alloy, a copper-based alloy, a nickel-based metal, or a galvanized steel sheet.
CN202110774954.8A 2021-07-09 2021-07-09 Binding agent for easy-to-clean coating on surface of food machinery Active CN113604128B (en)

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CN109294394B (en) * 2018-09-21 2020-12-25 华东理工大学 Super-hydrophilic self-cleaning epoxy coating and preparation method and application thereof
CN110343440A (en) * 2019-05-29 2019-10-18 东莞市罗孚化工有限公司 A kind of metal surface coating easy to clean and preparation method
CN112724825A (en) * 2020-12-24 2021-04-30 湖北金天叶科技有限公司 Food-grade non-stick coating for tobacco machinery and preparation method thereof

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反应型季铵盐聚合物抗菌剂的合成及性能;高党鸽等;《印染》;20140715;第40卷(第14期);第11-16页 *

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