JP6734474B2 - Hydrophobic anti-sedimentation wave absorbing material and method for producing the same, kitchen electric appliance and method for producing the same - Google Patents

Description

TECHNICAL FIELD The present invention belongs to the technical field of coating materials, and particularly relates to a hydrophobic type anti-settling wave absorbing material and a manufacturing method thereof, a kitchen electric appliance and a manufacturing method thereof.

Wave absorbers used in the microwave industry are generally high-density ferrites, carbides, nitrides, etc., which are mixed with a binder, a solvent, etc. to produce a wave-absorbing material, which is left for a certain period of time before It is very easy for the absorbent to settle, which has a great influence on the application of the wave absorbing material, and also affects the practical wave absorbing effect and the temperature rise stability of the wave absorbing material. It is well known that overuse can occur and that safety issues in use can occur.

The above problems have a great influence on the application of wave absorbing materials in the microwave industry, and consumers cannot satisfy the ever-increasing demands for baking and roasting microwave products.

In the conventional microwave industry, the wave absorbing material technology mainly consists of adding a high-density wave absorber to a silica gel binder, adding an appropriate amount of auxiliary agent, mechanically stirring, and then vulcanized and crosslinked to obtain a silica gel wave of about 2 mm. By pressing on the absorption sheet, the final wave absorption sheet is formed, and the wave absorption sheet is further adhered to the surface of the base material via an adhesive to manufacture a microwave absorption accessory. However, the microwave hot plate produced by such a method has the following drawbacks:
1. The wave absorber is non-uniformly dispersed and easily settles, and in mass-produced products of the same specification type, the difference in microwave absorption characteristics is large, and the phenomenon in which the wave absorber is locally overheated due to uneven distribution May occur;
2. The large amount of resin material such as silica gel is used, which means that the wave absorption layer is too thick;
3. Complicated production process, labor and materials required;
4. It does not have hydrophobic properties and it will stick to oil stains after long-term use.

At present, the wave absorbing materials used in the microwave industry rarely use wave absorbing paints, are anti-settling, and it is difficult to find a wave absorbing material with stable wave absorbing characteristics. is there. Focusing only on the thick layer wave absorbing sheet with complicated process, and the hydrophobic oleophobic property cannot completely meet the future requirement. There is a strong demand for a wave-absorbing paint that is thin, convenient and has excellent properties.

In view of the problems in the prior art, the present invention provides a hydrophobic type anti-sedimentation wave absorbing material that can be used in kitchen appliances, such as microwave oven products, and a method for producing the same, and at present, the wave absorbing material for microwave products is The wave absorber is non-uniformly dispersed and easily settles, and in mass-produced products of the same specification type, the difference in microwave absorption characteristics is large, and the phenomenon in which the wave absorber is locally overheated due to uneven distribution Can be caused by using a large amount of resin material such as silica gel, the wave absorption layer is too thick, the production process is complicated, labor and material are involved, it does not have hydrophobic characteristics, and it can be used for a long time. The purpose is to solve problems such as easy adhesion of dirt.

In order to solve the above technical problems, the present invention proposes the following technical solutions:

The xz hydrophobic type anti-settling wave absorbing material comprises 75 to 90 parts by weight of binder, 0.5 to 2 parts of wave absorbing agent, 5 to 10 parts of solvent, 1 to 15 parts of anti-settling agent and 0.5 to 1 part of auxiliary agent. Including in part.

In the present invention, the binder is a material having a good bonding property with the wave absorbing material and the hot plate material, and also has a temperature resistance property that does not easily decompose at a high temperature. A wave absorber is a material that disperses well in a binder and can efficiently absorb microwave energy in a microwave environment. The solvent has a function of dissolving the auxiliary agent and the binder and of uniformly distributing the wave absorber and the anti-settling agent. The auxiliary agent is a reagent having a function such that each component material is well compatible with each other and mixed, and that the obtained coating material and the base material are well adhered.

The present invention has the following beneficial effects:

The main function of the binder is to disperse the wave absorber well, to adhere it to the surface of the substrate, to have good temperature resistance, to meet the requirements for use in high temperature environments, and to have good hydrophobic properties. is there.

The main function of the wave absorbing agent is to absorb microwave energy, convert it into heat quantity, and transmit it to a device or the like to exert the characteristic of absorbing and transferring heat at a high speed.

The main action of the solvent is to dissolve the auxiliaries and binders and to evenly distribute the wave absorber and anti-settling agent.

The main function of the anti-settling agent is that it suspends well and uniformly in the paint system, improves the viscosity of the entire paint system and the suspension characteristics of the filler, thickens the paint, imparts thixotropy, and chemically These properties are stable and prevent sedimentation of the filler.

As a result of investigation, the inventor has surprisingly found that the hydrophobic type anti-sedimentation wave-absorbing material produced has excellent anti-sedimentation property and homogeneity by using the above-mentioned components in a reasonable mixing ratio, and It is found that it has advantages such as high temperature, excellent wave absorption property, thin coating layer, simple production process, and antibacterial function.

Based on the above technical solution, the present invention can be further improved as follows.

Further, the binder is a hybrid product of sol and silicone resin. Preferably, the mass ratio of the sol to the silicone resin is (5-20):1.

Adopting the above technical solution has the following beneficial effects: By adopting the hybrid form of sol and organic resin, it is advantageous to ensure the high temperature resistance property and the property of easy cleaning of the material, That is, by using both as a mixture, it is possible to exhibit good high temperature resistance and easy cleaning characteristics.

Further, the sol is selected from a mixture of one or more of silica sol, aluminum sol and zirconium sol.

If the above technical solution is adopted, the following beneficial effects can be obtained: By using one or more of silica sol, aluminum sol and zirconium sol as a mixture and using them as a binder by hybridizing with a silicone resin, the material becomes It has good bonding properties and temperature resistance that is resistant to decomposition at high temperatures.

Furthermore, the content of the active substance in the silica sol is 20% to 40%, the content of the active substance in the aluminum sol is 20% to 40%, and the content of the active substance in the zirconium sol is 15% to 25%. Is.

The effective substance in the silica sol means silica, the effective substance in the aluminum sol means alumina, and the effective substance in the zirconium sol means zirconia. That is, in the silica sol, the mass fraction of silica is 20% to 40%, in the aluminum sol, the mass fraction of alumina is 20% to 40%, and in the zirconium sol, the mass fraction of zirconia is 15%. ~25%.

Adopting the above technical solution has the following beneficial effects:
A suitable content is advantageous for stable application of the controlled coating viscosity, and if the content is too low, the viscosity of the coating is too small, and the film-forming characteristics are likely to deteriorate, and if the content is too high, the viscosity becomes too low. It is too high and tends to cause deterioration of the leveling property.

Further, the wave absorbent is composed of A component and B component, the A is selected from acicular zinc oxide whiskers and/or thin layer graphite, and the B raw material is one of lanthanum oxide, cerium oxide and neodymium oxide. Selected from one or more mixtures.

Adopting the above technical solution has the following beneficial effects: One or more of lanthanum oxide, cerium oxide, and neodymium oxide using one or two of acicular zinc oxide whiskers and thin-layer graphite. A wave absorbing material is added in a different ratio to the main function of the material is to disperse well in the binder by the action of a suitable auxiliary agent, and to make the material capable of efficiently absorbing microwave energy in the microwave environment. ..

Further, the parameter of lanthanum oxide has a particle size smaller than 30 nm, the parameter of cerium oxide has a particle size smaller than 30 nm, and the parameter of neodymium oxide has a particle size smaller than 30 nm.

Adopting the above technical solution has the following beneficial effects: in a suitable parameter range, it is advantageous in assuring the characteristics of the coating layer manufactured from the material and avoiding problems such as too high cost. If the particle size is too small, there is a problem that the cost becomes high and it is not applied to industrial production, and if the particle size is too large, the dispersion of the paint deteriorates, and the appearance of the coating layer produced is not preferable. It is easy to cause problems such as.

Further, the solvent is selected from any one or a mixture of n-butyl alcohol, isobutyl alcohol and isopropanol.

If the above technical solution is adopted, the following beneficial effects can be obtained: If the solvent of the above-mentioned type is adopted, the auxiliary agent and the binder are further dissolved, and the wave absorbing agent and the anti-settling agent are more evenly distributed. You can

Further, the anti-settling agent is a hydrophobic vapor phase silica.

Adopting the above technical solution has the following beneficial effects: By adopting hydrophobic type vapor phase silica as an anti-settling agent, it can be suspended in a good and even manner in a paint system to increase its viscosity and thixotropy. It has the effect of imparting and stabilizing the chemical properties.

Further, the auxiliaries are selected from any one or a mixture of dispersants, defoamers and adhesion promoters.

Adopting the above technical solution has the following beneficial effects: The main effect of using the auxiliary agent is that the component materials can be well compatibilized and mixed, and that the manufactured coating material can be well adhered to the base material. Have a function. The main action of the dispersant is to improve the dissolution and dispersion characteristics in the system of hydrophobic gas phase silica and wave absorber, and to make the entire coating system uniform and stable. There is a defoaming and foam suppressing action by reducing the tension, and the main action of the adhesion promoter is to improve the wetting ability between the coating system and the base material, thereby It is to improve the adhesion property.

The dispersant is selected from a mixture of one or more of sodium lauryl sulfate and hexadecyltrimethylammonium bromide.

Adopting the above technical solution has the following beneficial effects: The dispersion characteristics are further improved.

The present invention further provides a method for producing a hydrophobic anti-sedimentation wave absorption material, which comprises uniformly mixing the respective components in the above-mentioned mixing ratio to produce a hydrophobic anti-sedimentation wave absorption material.

In the present invention, the mixing method and specific conditions are not particularly limited, and a suitable stirring speed and stirring time may be selected according to the specific situation.

Adopting the above technical solution, the following beneficial effects are achieved: The present invention has a simple manufacturing process, and the manufactured hydrophobic type anti-settling wave absorbing material has excellent anti-settling property and uniformity. It has the advantages of high temperature resistance, excellent wave absorption characteristics, thin coating layer, simple production process, and antibacterial function.

In addition, the auxiliaries include dispersants, defoamers and adhesion promoters, and include the following specific steps during manufacture:
1) a step of uniformly mixing a binder and a dispersant in a compounding ratio to obtain a first mixed system,
2) a step of adding an anti-settling agent and an antifoaming agent to the first mixed system obtained in step 1) and mixing them uniformly to obtain a second mixed system,
3) A step of adding a solvent, a wave absorber and an adhesion promoter to the second mixed system obtained in step 2) and uniformly mixing them to obtain a hydrophobic anti-settling wave absorbing material.

Adopting the above technical solution has the following beneficial effects: It is advantageous to rapidly and uniformly mix the components according to the order of addition, and avoid the occurrence of material characteristic defects due to uneven mixing. To do.

Further, the dispersant, the defoaming agent and the adhesion promoter have a ratio relationship that the mass ratio of the dispersant and the defoaming agent is (1-2):1, and the ratio between the defoaming agent and the adhesion promoter is The mass ratio is (0.5-2):1.

Adopting the above technical solution brings about the following beneficial effects: Furthermore, it has a function of well compatibilizing and mixing each component material, and well adhering the produced coating material to the substrate. Proportionally suitable dispersants, defoamers and adhesion promoters provide better properties such as dispersion, adhesion and defoaming.

The present invention further provides a kitchen electric appliance including a base material and a coating layer provided on the surface of the base material, the coating layer being manufactured from the hydrophobic anti-settling wave absorbing material.

At the time of specific use, the kitchen electric appliance may be provided with another coating layer other than the coating layer manufactured from the hydrophobic type anti-settling wave absorbing material according to the present invention, depending on the specific situation. ..

The hydrophobic type anti-settling wave absorbing material according to the present invention can be applied to any kitchen electric appliances having a microwave characteristic as a principle. For example, it can be applied to microwave products such as microwave oven and microwave oven, has excellent anti-settling property and uniformity, has high temperature resistance, has excellent wave absorption property, has a thin coating layer, and has a production process. It has advantages such as being simple and having an antibacterial function.

The present invention further provides a method for producing a kitchen electric appliance, which comprises spraying the hydrophobic anti-sedimentation wave absorbing material onto a surface of a base material of a kitchen electric appliance and then curing the material to form a hydrophobic oleophobic wave absorbing material as a coating layer. I will provide a.

Before spraying, the surface of the base material of the kitchen electric appliance may be subjected to a pretreatment process to further improve the binding effect between the paint and the base material.

Adopting the above technical solution has the following beneficial effects: the manufacturing method according to the present invention is simple, has excellent anti-settling property and uniformity, is high temperature resistant, and has excellent wave absorption. It has advantages such as characteristics, thin coating layer, simple production process, and antibacterial function.

Hereinafter, the principles and features of the present invention will be explained, and the examples given are merely used for interpreting the present invention and are not meant to limit the scope of the present invention.

Unless otherwise specified, each component used in the present invention may be obtained as a commercial product, or may be produced by a general technical means in this field.

The hydrophobic type anti-settling wave absorbing material comprises 75 to 90 parts by weight of binder, 0.5 to 2 parts of wave absorbing agent, 5 to 10 parts of solvent, 1 to 15 parts of anti-settling agent and 0.5 to 1 part of auxiliary agent. Including.

Preferably, the hydrophobic anti-settling wave absorbing material comprises a binder, a wave absorbing agent, a solvent, an anti-settling agent and an auxiliary agent, the binder is 75% to 90% and the wave absorbing agent is 0.5% by mass. % To 2%, solvent to 5% to 10%, antisettling agent to 1% to 15%, and auxiliaries to 0.5% to 1%.

The binder is a hybrid product of sol and silicone resin. Preferably, the mass ratio of the sol to the silicone resin is (5-20):1. Due to the above ratio, good high temperature resistance and easy cleaning characteristics can be exhibited.

The sol is selected from one or a mixture of silica sol, aluminum sol and zirconium sol.

The content of the active substance in the silica sol is 20% to 40%, the content of the active substance in the aluminum sol is 20% to 40%, and the content of the active substance in the zirconium sol is 15% to 25%. ..

The effective substance in the silica sol means silica, the effective substance in the aluminum sol means alumina, and the effective substance in the zirconium sol means zirconia. That is, in the silica sol, the mass fraction of silica is 20% to 40%, in the aluminum sol, the mass fraction of alumina is 20% to 40%, and in the zirconium sol, the mass fraction of zirconia is 15%. ~25%.

“Hybrid product of sol and silicone resin” refers to a product obtained by mixing a sol and a silicone resin.

Silicone resins are highly cross-linked networked polyorganosiloxanes and generally employ various mixtures of methyltrichlorosiloxane, dimethyldichlorosiloxane, phenyltrichlorosiloxane, diphenyldichlorosiloxane or methylphenyldichlorosiloxane.

The silicone resin in the examples is obtained from Wacker.

The wave absorber is composed of A component and B component, the A is selected from acicular zinc oxide whiskers and/or thin layer graphite, and the B raw material is one of lanthanum oxide, cerium oxide and neodymium oxide. Selected from a plurality of mixtures.

Preferably, when the mass ratio of the A component and the B component is (3-15):1, the characteristics of the material are further improved. In each example, the parameter of lanthanum oxide has a particle size smaller than 30 nm, the parameter of cerium oxide has a particle size smaller than 30 nm, and the parameter of neodymium oxide has a particle size smaller than 30 nm.

The solvent is selected from one or a mixture of n-butyl alcohol, isobutyl alcohol, and isopropanol.

The anti-settling agent is a hydrophobic vapor phase silica. In each example, both hydrophobic vapor phase silica R972 and hydrophobic vapor phase silica R974 are available from Degussa.

The auxiliaries are selected from any one or a mixture of dispersants, defoamers and adhesion promoters. Specifically, the dispersant is selected from a mixture of one or more of sodium lauryl sulfate and hexadecyltrimethylammonium bromide. In each example, the defoaming agent having a model number of the defoaming agent L-1984 is obtained from Nippon Kusumoto Kasei Co. The adhesion promoter is one of KH-550 and G-407, and both KH-550 and G-407 are available from Liaoning Lizhou Chemical Industry Company.

In the method for producing the hydrophobic anti-sedimentation wave absorption material, the respective components are uniformly mixed in the above-mentioned mixing ratio to produce the hydrophobic anti-sedimentation wave absorption material.

If the auxiliaries include a dispersant, an antifoaming agent and an adhesion promoter, a hydrophobic anti-settling wave absorbing material can be prepared by the following steps:
1) a step of uniformly mixing a binder and a dispersant in a compounding ratio to obtain a first mixed system,
2) a step of adding an anti-settling agent and an antifoaming agent to the first mixed system obtained in step 1) and mixing them uniformly to obtain a second mixed system,
3) A step of adding a solvent, a wave absorber and an adhesion promoter to the second mixed system obtained in step 2) and uniformly mixing them to obtain a hydrophobic anti-settling wave absorbing material.

More detailed operation steps are as follows.
1) Preparation of Dispersant-Binder Mixing System Mixing amounts of the binder material and the dispersing aid are mixed in a mixing ratio, and the mixture is mechanically stirred until the dispersant is completely dissolved and the system becomes uniform. Obtain a binder mixed system.
2) Preparation of anti-sedimentation system To the mixing system produced in step 1), add a mixing ratio of hydrophobic vapor phase silica and an antifoaming agent, and adjust a suitable mechanical stirring speed until each component is uniformly mixed. To obtain an anti-settling system.
3) Production of Hydrophobic Settling Prevention Wave Absorbing Material To the mixed system produced in step 2), a solvent, a wave absorber and an adhesion promoter are added, and in this process, the solvent is added several times to obtain a final product, That is, a hydrophobic type anti-settling wave absorbing material is obtained.

The dispersant, the defoaming agent, and the adhesion promoter have a ratio relationship such that the mass ratio of the dispersant and the defoaming agent is (1-2):1, and the mass ratio of the defoaming agent and the adhesion promoter. Is (0.5-2):1, it is advantageous to further improve the properties of the material.

The kitchen appliance includes a base material and a coating layer provided on the surface of the base material, the coating layer being made of the hydrophobic anti-settling wave absorbing material.

At the time of manufacturing, the hydrophobic type anti-settling wave absorbing material is sprayed on the surface of the base material of the kitchen electric appliance and then cured to form the hydrophobic oleophobic wave absorbing material as a coating layer. An operation such as baking may be adopted during curing.

Hereinafter, some specific examples will be described.

Example 1
In the hydrophobic type anti-sedimentation wave absorbing material and the method for producing the same, each component of the coating material is 80 kg by weight, the binder is 2 kg, the solvent is 7 kg, and the anti-settling agent is 10 kg. Yes, the auxiliary agent is 1 kg.

The manufacturing method is as follows.
1) Preparation of Dispersant-Binder Mixing System 80 Kg of binder (including 30 Kg of silica sol, 30 Kg of aluminum sol, 10 Kg of zirconium sol and 10 Kg of silicone resin) and 0.4 Kg of sodium lauryl sulfate as a dispersion aid were mixed. At 500 r/min, the dispersant is completely dissolved and mechanically agitated until it becomes uniform to prepare a first mixed system, that is, a dispersant-binder mixed system.
2) Production of anti-settling system To the first mixed system produced in step 1), 10 kg of hydrophobic vapor phase silica R974 and 0.3 kg of defoaming agent L-1984 were added, and mechanical stirring was performed at 100 r/min for 5 min. After that, mechanical stirring is carried out at 600 r/min for 10 min to uniformly mix the respective components to obtain a second mixed system, that is, an anti-settling system.
3) Preparation of hydrophobic type anti-settling wave absorbing material In the second mixed system prepared in step 2), 7 kg of solvent (containing 5 kg of isopropanol and 2 kg of isobutyl alcohol), 2 kg of wave absorbent (1.2 kg) Of acicular zinc oxide whiskers, 0.6 kg of thin-layer graphite, 0.1 kg of lanthanum oxide, 0.05 kg of cerium oxide and 0.05 kg of neodymium oxide) and 0.3 kg of adhesion promoter G-407. And mechanically stirring at 300 r/min for 10 min (in this process, the solvent is added several times) to obtain the final product, a hydrophobic anti-sedimentation wave absorbing material.

In the above contents, the content of the active substance in the silica sol is 20%, the content of the active substance in the aluminum sol is 20%, and the content of the active substance in the zirconium sol is 15%.

Example 2
In the hydrophobic type anti-settling anti-wave absorption material and the method for producing the same, each component of the coating material is, by mass percentage, 78 Kg of binder, 1.6 Kg of wave absorber, 8.5 Kg of solvent, and sedimentation. The inhibitor is 11 kg and the auxiliary is 0.9 kg.

The manufacturing method is as follows.
1) Preparation of Dispersant-Binder Mixture System 78 Kg of binder (including 30 Kg of silica sol, 30 Kg of aluminum sol, 10 Kg of zirconium sol and 8 Kg of silicone resin) and 0.4 Kg of dispersion aid hexadecyl trimethyl ammonium bromide. Is mixed and mechanically stirred until the dispersant is completely dissolved and becomes uniform at 500 r/min to prepare a first mixed system, that is, a dispersant-binder mixed system.
2) Production of anti-settling system To the first mixed system produced in step 1), 11 kg of hydrophobic vapor phase silica R972 and 0.2 kg of antifoaming agent L-1984 were added, and mechanical stirring was performed at 100 r/min for 5 min. After that, mechanical stirring is carried out at 600 r/min for 10 min to uniformly mix the respective components to obtain a second mixed system, that is, an anti-settling system.
3) Preparation of hydrophobic type, anti-settling wave absorbing material In the second mixed system prepared in step 2), 8.5 Kg of solvent (containing 5 Kg of isopropanol and 3.5 Kg of n-butyl alcohol), 1.6 Kg Wave absorber (containing 1.0 kg of acicular zinc oxide whiskers, 0.5 kg of thin-layer graphite, 0.05 kg of lanthanum oxide and 0.05 kg of cerium oxide) and 0.3 kg of adhesion promoter KH- 550 is added and mechanically stirred at 300 r/min for 10 min (in this process, the solvent is added several times) to obtain a final product, a hydrophobic type, anti-settling wave absorbing material.

In the above content, the content of the active substance in the silica sol is 40%, the content of the active substance in the aluminum sol is 40%, and the content of the active substance in the zirconium sol is 25%.

Example 3
In the hydrophobic type anti-sedimentation wave absorbing material and the method for producing the same, each component of the coating material is, in percentage by mass, a binder of 75 Kg, a wave absorber of 1.2 Kg, a solvent of 10 Kg, and an anti-sedimentation agent. Is 13 Kg and the auxiliary is 0.8 Kg.

The manufacturing method is as follows.
1) Preparation of Dispersant-Binder Mixture System 75 Kg of binder (including 35 Kg of silica sol, 35 Kg of aluminum sol and 5 Kg of silicone resin) and 0.4 Kg of hexadecyltrimethylammonium bromide, which is a dispersion aid, were mixed together to obtain 500 r. /Min to mechanically stir until the dispersant is completely dissolved and becomes uniform to prepare a first mixed system, that is, a dispersant-binder mixed system.
2) Production of anti-settling system To the first mixed system produced in step 1), 13 kg of hydrophobic vapor phase silica R972 and 0.2 kg of antifoaming agent L-1984 were added, and mechanical stirring was carried out at 100 r/min for 5 min. After that, mechanical stirring is carried out at 600 r/min for 10 min to uniformly mix the respective components to obtain a second mixed system, that is, an anti-settling system.
3) Preparation of hydrophobic type, anti-settling wave absorbing material In the second mixed system prepared in step 2), 10 kg of solvent (containing 6 kg of isopropanol, 2 kg of n-butyl alcohol and 2 kg of isobutyl alcohol), 1. 2 Kg of wave absorber (including 0.6 Kg of acicular zinc oxide whiskers, 0.5 Kg of thin-layer graphite and 0.1 Kg of lanthanum oxide) and 0.2 Kg of adhesion promoter G-407 were added, 300 r/ Mechanical stirring is performed for 10 min (in this process, the solvent is added several times) to obtain the final product, a hydrophobic type, anti-settling wave absorbing material.

In the above content, the content of the active substance in the silica sol is 30%, and the content of the active substance in the aluminum sol is 30%.

Example 4
In the hydrophobic type anti-settling wave absorbing material and the method for producing the same, each component of the coating material has a mass percentage of 83 Kg of binder, 0.8 Kg of wave absorbing agent, 9.6 Kg of solvent, and sedimentation. The inhibitor is 6 kg and the auxiliary is 0.6 kg.

The manufacturing method is as follows.
1) Preparation of Dispersant-Binder Mixing System 83 Kg of binder (56 Kg of silica sol, 10 Kg of aluminum sol, 5 Kg of zirconium sol and 12 Kg of silicone resin included) and 0.3 Kg of sodium lauryl sulphate as a dispersion aid were mixed. At 500 r/min, the dispersant is completely dissolved and mechanically agitated until it becomes uniform to prepare a first mixed system, that is, a dispersant-binder mixed system.
2) Production of anti-settling system To the first mixed system produced in step 1), 6 kg of hydrophobic vapor phase silica R974 and 0.2 kg of antifoaming agent L-1984 were added, and mechanical stirring was carried out at 100 r/min for 5 min. After that, mechanical stirring is carried out at 600 r/min for 10 min to uniformly mix the respective components to obtain a second mixed system, that is, an anti-settling system.
3) Preparation of Hydrophobic Sedimentation Prevention Wave Absorbing Material In the second mixed system prepared in step 2), 9.6 kg of solvent (containing 3 kg of n-butyl alcohol and 6.6 kg of isobutyl alcohol), 0.8 kg. Wave absorber (containing 0.6 Kg of thin-layer graphite, 0.1 Kg of lanthanum oxide and 0.1 Kg of cerium oxide) and 0.1 Kg of adhesion promoter G-407 were added at 300 r/min for 10 min. The mixture is stirred vigorously (in this process, the solvent is added several times) to obtain the final product, a hydrophobic anti-sedimentation wave absorbing material.

In the above contents, the content of the active substance in the silica sol is 30%, the content of the active substance in the aluminum sol is 30%, and the content of the active substance in the zirconium sol is 20%.

Example 5
In the hydrophobic type anti-sedimentation wave absorbing material and the method for producing the same, each component of the coating material is, by mass percentage, 86 Kg of binder, 0.5 Kg of wave absorbent, 9 Kg of solvent, and anti-sedimentation agent. Is 4 Kg and the auxiliary is 0.5 Kg.

The manufacturing method is as follows.
1) Preparation of Dispersant-Binder Mixing System 86 Kg of binder (including 11 Kg of silica sol, 72 Kg of aluminum sol and 3 Kg of silicone resin) and 0.2 Kg of sodium lauryl sulphate as a dispersion aid were mixed, and at 500 r/min. Mechanically stirring until the dispersant is completely dissolved and homogeneous to produce a first mixed system, i.e. a dispersant-binder mixed system,
2) Preparation of anti-settling system The first mixed system prepared in step 1) was mechanically stirred for 5 min at 4 kg of hydrophobic vapor phase silica R974 and 0.2 kg of defoamer L-1984 at 100 r/min. , Mechanically stirring at 600 r/min for 10 min to uniformly mix each component to obtain a second mixed system, that is, an anti-settling system.
3) Preparation of hydrophobic anti-settling wave absorbing material In the second mixed system prepared in step 2), 9 kg of solvent (solvent is 9 kg of isopropanol), 0.5 kg of wave absorber (0.2 kg of needle). Zinc oxide whiskers, 0.25 Kg of thin-layer graphite and 0.05 Kg of cerium oxide) and 0.1 Kg of adhesion promoter G-407 were added and mechanically stirred at 300 r/min for 10 min (in this process). The solvent is added several times) to obtain the final product, a hydrophobic anti-sedimentation wave absorbing material.

In the above content, the content of the active substance in the silica sol is 30%, and the content of the active substance in the aluminum sol is 30%.

Example 6
In the hydrophobic type anti-sedimentation wave absorbing material and the method for producing the same, each component of the coating material is, in mass percentage, 90 kg of binder, 0.5 kg of wave absorber, 5 kg of solvent, and anti-settling agent. Is 4 Kg and the auxiliary is 0.5 Kg.

The manufacturing method is as follows.
1) Preparation of Dispersant-Binder Mixing System 90 kg of binder (including 40 kg of silica sol, 40 kg of aluminum sol, 5 kg of zirconium sol and 5 kg of silicone resin) and 0.2 kg of hexadecyltrimethylammonium bromide as a dispersion aid were added. Mixing and mechanical stirring until the dispersant is completely dissolved and uniform at 500 r/min to produce the first mixture system, ie the dispersant-binder mixture system,
2) Production of anti-settling system To the first mixed system produced in step 1), 4 kg of hydrophobic vapor phase silica R972 and 0.2 kg of antifoaming agent L-1984 were added, and mechanical stirring was performed at 100 r/min for 5 min. After that, mechanical stirring is performed at 600 r/min for 10 minutes to uniformly mix the respective components to obtain a second mixing system, that is, an anti-settling system.
3) Production of Hydrophobic Settling Wave Absorbing Material In the second mixed system produced in step 2), 5 Kg of solvent (containing 2 Kg of isopropanol and 3 Kg of isobutyl alcohol), 0.5 Kg of wave absorber (0. 2 Kg of acicular zinc oxide whiskers, 0.25 Kg of thin-layer graphite and 0.05 Kg of cerium oxide) and 0.1 Kg of adhesion promoter KH-550 were added, and mechanically stirred at 300 r/min for 10 min ( In this process, the solvent is added several times to obtain the final product, the hydrophobic anti-sedimentation wave absorbing material.

In the above contents, the content of the active substance in the silica sol is 30%, the content of the active substance in the aluminum sol is 30%, and the content of the active substance in the zirconium sol is 20%.

Example 7
In the hydrophobic type anti-sedimentation wave absorbing material and the method for producing the same, each component of the coating material is, in mass percentage, 75 Kg of binder, 0.5 Kg of wave absorbent, 9 Kg of solvent, and anti-sedimentation agent. Is 15 Kg and the auxiliary agent is 0.5 Kg.

The manufacturing method is as follows.
1) Preparation of Dispersant-Binder Mixture System 75 kg of binder (including 20 kg of silica sol, 20 kg of aluminum sol, 30 kg of zirconium sol and 5 kg of silicone resin) and 0.3 kg of hexadecyltrimethylammonium bromide as a dispersion aid were added. Mix and mechanically stir at 500 r/min until the dispersant is completely dissolved and the system is uniform to produce the first mixture system, ie, the dispersant-binder mixture system.
2) Production of anti-settling system To the first mixed system produced in step 1), 15 kg of hydrophobic vapor-phase silica R972 and 0.1 kg of antifoaming agent L-1984 were added, and mechanical stirring was carried out at 100 r/min for 5 min. After that, mechanical stirring is carried out at 600 r/min for 10 min to uniformly mix the respective components to obtain a second mixed system, that is, an anti-settling system.
3) Preparation of Hydrophobic Sedimentation Prevention Wave Absorbing Material In the second mixed system prepared in step 2), 9 Kg of solvent (containing 5 Kg of isopropanol, 3 Kg of isobutyl alcohol and 1 Kg of n-butyl alcohol), 0.5 Kg Wave absorber (containing 0.2 Kg of acicular zinc oxide whiskers, 0.25 Kg of thin-layer graphite and 0.05 Kg of cerium oxide) and 0.1 Kg of adhesion promoter KH-550 at 300 r/min. Mechanically stir for 10 min (in this process, the solvent is added several times) to obtain the final product, the hydrophobic anti-sedimentation wave absorbing material.

In the above contents, the content of the active substance in the silica sol is 30%, the content of the active substance in the aluminum sol is 30%, and the content of the active substance in the zirconium sol is 20%.

Example 8
In the hydrophobic type anti-sedimentation wave absorbing material and the method for producing the same, each component of the coating material has a mass percentage of 90 Kg of binder, 0.5 Kg of wave absorbent, 8 Kg of solvent, and anti-sedimentation agent. Is 1 Kg and the auxiliary is 0.5 Kg.

The manufacturing method is as follows.
1) Preparation of Dispersant-Binder Mixing System 90 kg of binder (including 40 kg of silica sol, 40 kg of aluminum sol, 5 kg of zirconium sol and 5 kg of silicone resin) and 0.1 kg of hexadecyltrimethylammonium bromide as a dispersion aid were added. Mix and mechanically stir until the dispersant is completely dissolved at 500 r/min and becomes uniform to prepare a first mixed system, that is, a dispersant-binder mixed system.
2) Production of anti-settling system To the first mixed system produced in step 1), 1 kg of hydrophobic vapor phase silica R972 and 0.2 kg of antifoaming agent L-1984 were added, and mechanical stirring was performed at 100 r/min for 5 min. After that, mechanical stirring is carried out at 600 r/min for 10 min to uniformly mix the respective components to obtain a second mixed system, that is, an anti-settling system.
3) Production of Hydrophobic Settling Wave Absorbing Material In the second mixed system produced in step 2), 8 Kg of solvent (containing 5 Kg of isopropanol and 3 Kg of isobutyl alcohol), 0.5 Kg of wave absorber (0. 2 Kg of acicular zinc oxide whiskers, 0.25 Kg of thin-layer graphite and 0.05 Kg of cerium oxide) and 0.2 Kg of adhesion promoter KH-550 were added, and mechanically stirred at 300 r/min for 10 min ( In this process, the solvent is added several times to obtain the final product, the hydrophobic anti-sedimentation wave absorbing material.

In the content, the content of the active substance in the silica sol is 30%, the content of the active substance in the aluminum sol is 30%, and the content of the active substance in the zirconium sol is 20%.

Example 9
In the hydrophobic type anti-settling anti-wave absorption material and the method for producing the same, each component of the coating material is, by mass percentage, 78 Kg of binder, 1.6 Kg of wave absorber, 8.5 Kg of solvent, and sedimentation. The inhibitor is 11 kg and the auxiliary is 0.9 kg.

The manufacturing method is as follows.
1) Preparation of Dispersant-Binder Mixing System 78 Kg of binder (the binder is 70 Kg of zirconium sol and 8 Kg of silicone resin) and 0.4 Kg of hexadecyltrimethylammonium bromide, which is a dispersion aid, are mixed to obtain 500 r/min. In step 1, the dispersant is completely dissolved and mechanically agitated until it becomes uniform to prepare a first mixed system, that is, a dispersant-binder mixed system.
2) Production of anti-settling system To the first mixed system produced in step 1), 11 kg of hydrophobic vapor phase silica R972 and 0.2 kg of antifoaming agent L-1984 were added, and mechanical stirring was performed at 100 r/min for 5 min. After that, mechanical stirring is carried out at 600 r/min for 10 min to uniformly mix the respective components to obtain a second mixed system, that is, an anti-settling system.
3) Preparation of Hydrophobic Sedimentation Prevention Wave Absorbing Material In the second mixed system prepared in step 2), 8.5 kg of solvent (8.5 kg of n-butyl alcohol) and 1.6 kg of wave absorber ( 1.5 kg of acicular zinc oxide whiskers and 0.1 kg of neodymium oxide) and 0.3 kg of adhesion promoter KH-550 were added and mechanically stirred at 300 r/min for 10 min (in this process, the solvent was removed). (Added several times) to obtain the final product, hydrophobic anti-sedimentation wave absorbing material.

According to the above content, the content of the active substance in the zirconium sol is 20%.

Comparative Example 1
In the hydrophobic type sedimentation preventing wave absorbing material and the method for producing the same, each component of the coating material has a mass percentage of 73 Kg of binder, 0.2 Kg of wave absorbing agent, 9.3 Kg of solvent, and sedimentation. The inhibitor is 17 kg and the auxiliary is 0.5 kg. The content of the active substance in the sol is 30%.

The manufacturing method is as follows.
1) Preparation of dispersant-binder mixture system 73 kg of binder (including 30 kg of silica sol, 30 kg of aluminum sol, 5 kg of zirconium sol and 8 kg of silicone resin) and 0.2 kg of hexadecyltrimethylammonium bromide which is a dispersion aid. The mixture is mixed and mechanically stirred at 500 r/min until the dispersant is completely dissolved and becomes uniform to prepare a first mixed system, that is, a dispersant-binder mixed system.
2) Production of anti-settling system To the first mixed system produced in step 1), 17 kg of hydrophobic vapor phase silica R972 and 0.2 kg of defoaming agent L-1984 were added, and mechanical stirring was carried out at 100 r/min for 5 min. After that, mechanical stirring is carried out at 600 r/min for 10 min to uniformly mix the respective components to obtain a second mixed system, that is, an anti-settling system.
3) Preparation of Hydrophobic Sedimentation Prevention Wave Absorbing Material In the second mixed system prepared in step 2), 9.3 Kg of solvent (containing 5 Kg of isopropanol and 4.3 Kg of n-butyl alcohol), 0.2 Kg of Wave absorber (containing 0.1 Kg of acicular zinc oxide whiskers, 0.05 Kg of lanthanum oxide and 0.05 Kg of cerium oxide) and 0.1 Kg of adhesion promoter KH-550 were added at 300 r/min for 10 min. Mechanical stirring (in this process, the solvent is added several times) to obtain the final product, a hydrophobic anti-sedimentation wave absorbing material.

In the above contents, the content of the active substance in the silica sol is 30%, the content of the active substance in the aluminum sol is 30%, and the content of the active substance in the zirconium sol is 20%.

Comparative Example 2
In the hydrophobic type anti-sedimentation wave absorbing material and the method for producing the same, each component of the coating material is, by mass percentage, 74 Kg of binder, 0.3 Kg of wave absorbent, 9.2 Kg of solvent, and sedimentation. The inhibitor is 16 kg and the auxiliary is 0.5 kg.

The manufacturing method is as follows.
1) Preparation of Dispersant-Binder Mixing System 74 kg of binder (including 30 kg of silica sol, 30 kg of aluminum sol, 6 kg of zirconium sol and 8 kg of silicone resin) and 0.2 kg of hexadecyltrimethylammonium bromide as a dispersion aid were added. Mix and mechanically stir at 500 r/min until the dispersant is completely dissolved and the system is uniform to produce the first mixture system, ie, the dispersant-binder mixture system.
2) Production of anti-settling system To the first mixed system produced in step 1), 16 kg of hydrophobic vapor phase silica R972 and 0.2 kg of defoaming agent L-1984 were added, and mechanical stirring was carried out at 100 r/min for 5 min. Then, the mixture was mechanically stirred at 600 r/min for 10 min to uniformly mix the components to obtain a second mixing system, that is, an anti-sedimentation system. 3) Manufacturing step 2) of a hydrophobic anti-sedimentation wave absorbing material In the second mixed system, 9.2 Kg of solvent (containing 5 Kg of isopropanol and 4.2 Kg of n-butyl alcohol), 0.3 Kg of wave absorber (0.2 Kg of acicular zinc oxide whiskers, 0.05 Kg of Lanthanum oxide and 0.05 kg of cerium oxide) and 0.1 kg of adhesion promoter KH-550 are added, mechanically stirred at 300 r/min for 10 min (in this process, the solvent is added several times), and finally A product, a hydrophobic type anti-settling wave absorbing material, is obtained.

In the above contents, the content of the active substance in the silica sol is 30%, the content of the active substance in the aluminum sol is 30%, and the content of the active substance in the zirconium sol is 20%.

Comparative Example 3
In the hydrophobic sedimentation preventing wave absorbing material and the method for producing the same, each component of the coating material is, in mass percentage, 91 kg of binder, 2.2 kg of wave absorbing agent, 5.5 kg of solvent, and sedimentation. The inhibitor is 0.8 Kg and the auxiliary is 0.5 Kg.

The manufacturing method is as follows.
1) Preparation of Dispersant-Binder Mixture System 91 kg of binder (including 48 kg of silica sol, 30 kg of aluminum sol, 5 kg of zirconium sol and 8 kg of silicone resin) and 0.2 kg of hexadecyltrimethylammonium bromide as a dispersion aid were added. Mix and mechanically stir until the dispersant is completely dissolved at 500 r/min and becomes uniform to prepare a first mixed system, that is, a dispersant-binder mixed system.
2) Production of anti-settling system To the first mixed system produced in step 1), 0.8 Kg of hydrophobic vapor phase silica R972 and 0.2 Kg of antifoaming agent L-1984 were added, and the machine was operated at 100 r/min for 5 min. After mechanical stirring, mechanical stirring is carried out at 600 r/min for 10 minutes to uniformly mix the respective components to obtain a second mixed system, that is, a settling prevention system.
3) Preparation of Hydrophobic Sedimentation Prevention Wave Absorbing Material In the second mixed system prepared in step 2), 5.5 Kg of solvent (containing 3.5 Kg of isopropanol and 2 Kg of n-butyl alcohol), 2.2 Kg of Wave absorber (containing 2.1 Kg of acicular zinc oxide whiskers, 0.05 Kg of lanthanum oxide and 0.05 Kg of cerium oxide) and 0.1 Kg of adhesion promoter KH-550 were added at 300 r/min for 10 min. Mechanical stirring (in this process, the solvent is added several times) to obtain the final product, a hydrophobic anti-sedimentation wave absorbing material.

In the above contents, the content of the active substance in the silica sol is 30%, the content of the active substance in the aluminum sol is 30%, and the content of the active substance in the zirconium sol is 20%.

Comparative Example 4
In the hydrophobic type anti-sedimentation wave absorbing material and the method for producing the same, each component of the coating material has a mass percentage of 92 Kg of binder, 2.4 Kg of wave absorbent, 4.6 Kg of solvent, and sedimentation. The inhibitor is 0.5 Kg and the auxiliary is 0.5 Kg.

The manufacturing method is as follows.
1) Preparation of dispersant-binder mixture system 92 kg of binder (including 49 kg of silica sol, 30 kg of aluminum sol, 5 kg of zirconium sol and 8 kg of silicone resin) and 0.2 kg of hexadecyltrimethylammonium bromide which is a dispersion aid. Mix and mechanically stir until the dispersant is completely dissolved at 500 r/min and becomes uniform to prepare a first mixed system, that is, a dispersant-binder mixed system.
2) Production of anti-settling system To the first mixed system produced in step 1), 0.5 Kg of hydrophobic vapor phase silica R972 and 0.2 Kg of antifoaming agent L-1984 were added, and the machine was operated at 100 r/min for 5 min. After mechanical stirring, mechanical stirring is carried out at 600 r/min for 10 minutes to uniformly mix the respective components to obtain a second mixed system, that is, a settling prevention system.
3) Preparation of Hydrophobic Sedimentation Prevention Wave Absorbing Material In the second mixed system prepared in step 2), 4.6 Kg of solvent (containing 2.6 Kg of isopropanol and 2 Kg of n-butyl alcohol), 2.4 Kg of Wave absorber (containing 2.3 kg of acicular zinc oxide whiskers, 0.05 kg of lanthanum oxide and 0.05 kg of cerium oxide) and 0.1 kg of adhesion promoter KH-550 were added at 300 r/min for 10 min. Mechanical stirring (in this process, the solvent is added several times) to obtain the final product, a hydrophobic anti-sedimentation wave absorbing material.

In the above contents, the content of the active substance in the silica sol is 30%, the content of the active substance in the aluminum sol is 30%, and the content of the active substance in the zirconium sol is 20%.

The material of each of the examples and comparative examples is sprayed on the surface of the base material of the hot plate and then cured to form a coating layer.

The hot plates manufactured in Examples 1 to 9 have a coating layer thickness of 50 μm.

The hot plates manufactured in Comparative Examples 1 to 4 have a coating layer thickness of 50 μm.

The following characteristic test is performed on each of the manufactured hot plate and the conventional resin wave absorbing material hot plate (having a coating layer thickness of 2 mm).

Characteristic test 1、Microwave characteristic test The strength of the microwave characteristic is the same time (2 minutes), the same material and size, when the same hot plate is used, and the same microwave oven is used with 100% thermal power, Expressed as the maximum temperature of the hot plate. The experimental results of the test are shown in Table 1.

2. Water contact angle test A water contact angle measuring instrument was used to detect the water contact angle for each Example and each Comparative Example, and Table 1 shows the experimental results.
The contact angle is a metric of the degree of wetting, which is the angle θ between the solid-liquid boundary line and the tangent line of the gas-liquid interface formed by the intersection of the three phases of gas, liquid and solid. When θ<90°, the solid surface is hydrophilic, that is, a solid which is easily wetted by a liquid, and when the contact angle is small, the hydrophilic property is good, and when θ>90°, the solid surface is Is hydrophobic, that is, it is a solid that is difficult to wet with liquid and easily moves to the surface.

3. Paint sedimentation and thixograph test etc. Weigh the paint into the same standard beaker, leave it at room temperature for 48 hours, observe if the paint phase separates, and mechanically stir at 200 r/min to It is evaluated whether or not it has a shear thinning property, and it is evaluated as excellent when it has thixotropy without phase separation, good when it does not undergo phase separation but does not have thixotropy, and poor when phase separation occurs. The experimental results of the test are shown in Table 1.

As can be seen from the data shown in Table 1, Examples 1 to 9 are technical solutions corresponding to the scope of the present invention, and are superior to the comparative examples and the conventional resin wave absorbing material hot plate in microwave efficiency. It has properties, hydrophobic properties and anti-settling properties. Here, Examples 1 to 7 and Example 9 are slightly better than the anti-settling effect of Example 8 because the amount of the anti-settling agent added to Example 8 is too low. This is because the anti-settling property is slightly lower than that of, but it is significantly better due to the hot plate property of the conventional resin wave absorbing material. In Comparative Example 1 and Comparative Example 2, the anti-settling property was improved, but the microwave property was remarkably reduced because the wave absorber and the binder content were small. In Comparative Example 3 and Comparative Example 4, the microwave characteristics were slightly improved as compared with Comparative Example 1 and Comparative Example 2, but were lower than those in Examples 1 to 9, and the addition of the anti-settling agent was added. Since the amount is small, the effect of preventing sedimentation is not preferable.

When considered comprehensively, the characteristics of Examples 1 to 9 are preferable.

According to the present invention, a hydrophobic gas phase silica is used to mix an appropriate amount of a dispersion aid, and a wave absorbing paint is produced together with other components, and the paint has excellent anti-settling property and uniformity. According to the present invention, the wave absorbent is non-uniformly dispersed and easily settles, and in mass-produced products of the same specification type, the microwave absorption characteristics are largely different. Solved the problem that the phenomenon of melting may occur.

The present invention has abandoned the conventional manufacturing method in which the wave absorbing material of the hot plate uses a large amount of organic resin, and uses a gas phase silica having a hydrophobic property to provide a high temperature resistant binder and a wave absorbing agent having an excellent wave absorbing property. By mixing and applying thinly, a paint with good wave absorption characteristics can be manufactured, and the thickness is reduced from about 2 mm of the conventional technology to about 50 μm, and the thickness of the wave absorption material is significantly reduced. By using a large amount of resin material such as silica gel in the technology, the problem that the wave absorption layer is too thick was solved.

The wave absorbing material manufactured according to the present invention can be sprayed on the surface of the work by performing a simple pretreatment of the base material, and the coating layer is as thin as about 50 μm. , The process difficulty was significantly reduced. It solved the problem that the production process was complicated and required labor and materials.

The present invention not only solves the problem that the wave absorbent tends to settle by adding hydrophobic vapor-phase silica to the wave absorbing material system, but also does not affect the hydrophobic oleophobic property and the wave absorbing property, and is antibacterial. It solves the problem that the manufactured material has more antibacterial properties, and the conventional wave-absorbing material technology does not have hydrophobic property and tends to cause sticking of oil stains due to long-term use. be able to.

In addition to the specific types of binders listed in the present invention, other binders having high temperature resistance, hydrophobic or oleophobic properties and capable of achieving similar properties are also included in the protection scope of the present invention.

In addition to the wave absorbing material described in the present invention, other materials having high wave absorbing characteristics and other wave absorbing materials capable of achieving similar characteristics are also included in the protection scope of the present invention.

In addition to the hydrophobic vapor phase silica model numbers described in the present invention, other hydrophobic vapor phase silica materials are included in the protection scope of the present invention as long as they can achieve similar properties.

In addition to the auxiliaries described in the present invention, auxiliaries capable of achieving the effects of dispersion, defoaming and adhesion improvement are included in the protection scope of the present invention as long as similar properties can be achieved.

Adjustments to the manufacturing process steps and agitation speed of the present invention are within the scope of protection of the present invention as long as similar properties can be achieved.

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited thereto. Various modifications, equivalent replacements and improvements to these embodiments without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (11)

Binder 75 to 90 parts, wave absorber 0.5 to 2 parts, solvent 5 to 10 parts, anti-settling agent 1 to 15 parts and auxiliary agent 0.5 to 1 parts by weight,
The binder is a hybrid product of sol and silicone resin,
The wave absorber is composed of A component and B component, the A component is selected from acicular zinc oxide whiskers, thin graphite, or both, and the B component is lanthanum oxide, cerium oxide or neodymium oxide. Selected from one or more mixtures, the mass ratio of the A component and the B component is (3-15):1,
The parameter of lanthanum oxide has a particle size smaller than 30 nm, the parameter of cerium oxide has a particle size smaller than 30 nm, and the parameter of neodymium oxide has a particle size smaller than 30 nm.
The anti-settling agent is a hydrophobic vapor phase silica,
A hydrophobic type anti-sedimentation wave absorbing material, characterized in that The sol is selected from a mixture of one or more of silica sol, aluminum sol and zirconium sol,
The hydrophobic sedimentation prevention wave absorbing material according to claim 1 , wherein The content of the active substance in the silica sol is 20% to 40%, the content of the active substance in the aluminum sol is 20% to 40%, and the content of the active substance in the zirconium sol is 15% to 25%. ,
The hydrophobic sedimentation preventing wave absorbing material according to claim 2 , wherein The solvent is selected from any one or a mixture of n-butyl alcohol, isobutyl alcohol and isopropanol.
Hydrophobic-type anti-settling wave absorbing material according to any one of claims 1 to 3, characterized in that. The auxiliary agent is selected from a mixture of one or more of a dispersant, an antifoaming agent and an adhesion promoter.
Hydrophobic-type anti-settling wave absorbing material according to any one of claims 1 to 3, characterized in that. The dispersant is selected from a mixture of one or more of sodium lauryl sulfate and hexadecyltrimethylammonium bromide.
The hydrophobic sedimentation preventing wave absorbing material according to claim 5 , wherein Uniformly mixing the components at the mixing ratio according to any one of claims 1 to 6, characterized in that to produce a hydrophobic-type anti-settling wave absorbing material, manufacturing method of hydrophobic-type anti-settling wave absorbing material. The auxiliaries include a dispersant, an antifoaming agent and an adhesion promoter, and when manufacturing the hydrophobic anti-settling wave absorbing material, specifically,
1) A step of uniformly mixing the binder and the dispersant at a compounding ratio to obtain a first mixed system,
2) A step of obtaining a second mixed system by adding an anti-settling agent and an antifoaming agent to the first mixed system obtained in step 1) and uniformly mixing them.
3) a step of adding a solvent, a wave absorbent and an adhesion promoter to the second mixed system obtained in step 2) and uniformly mixing them to obtain a hydrophobic anti-settling wave absorbing material.
The method for producing a hydrophobic anti-sedimentation wave absorbing material according to claim 7 , characterized in that. The dispersant, the defoaming agent, and the adhesion promoter have a ratio relationship such that the mass ratio of the dispersant and the defoaming agent is (1-2):1, and the mass ratio of the defoaming agent and the adhesion promoter. Is (0.5-2):1,
The method for producing a hydrophobic type anti-settling wave absorbing material according to claim 8 , wherein. Comprising a substrate and a coating layer provided on the surface of the substrate, wherein the coating layer is fabricated from a hydrophobic type antisettling wave absorbing material according to any one of claims 1 to 6
Kitchen appliances that are characterized. Spraying the hydrophobic type anti-sedimentation wave absorbing material according to any one of claims 1 to 6 on the surface of the base material of the kitchen electric appliance, and then curing it to form the hydrophobic anti-sedimentation wave absorbing material as a coating layer.
A method of manufacturing a kitchen electric appliance, comprising: