CN116040962A

CN116040962A - Lubricant high-retention composite anti-icing slip coating and preparation method and application thereof

Info

Publication number: CN116040962A
Application number: CN202310015840.4A
Authority: CN
Inventors: 陈华伟; 王泽林澜; 刘晓林; 赵泽辉; 朱彦曈; 陈济琛; 孙师泽; 占潇洋; 马峥
Original assignee: Beihang University
Current assignee: Beihang University
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-05-02

Abstract

The invention provides a high-retention composite anti-ice-slip coating of a lubricant, a preparation method and application thereof, and belongs to the technical field of functional coatings. The preparation raw materials of the base layer coating comprise the following components in parts by mass: 100 parts of framework material, 0-40 parts of solid lubricant, 0.2-0.8 part of flatting agent, 0.2-0.8 part of defoamer, 0.2-1 part of catalyst and 20-75 parts of organic solvent; the framework material is a coating precursor and a curing agent; the coating precursor comprises a resin precursor and an organosilicon precursor; coating the base layer coating on the surface of a substrate, and forming a skeleton base layer on the surface of the substrate after curing; and injecting a liquid lubricant into the skeleton base layer, and forming a lubricant high-retention composite anti-ice sliding coating on the surface of the substrate. The coating provided by the invention is simple to prepare, can hold the liquid lubricant for a long time, can keep the anti-icing performance of the interface for a long time, and has better bonding performance with the substrate.

Description

Lubricant high-retention composite anti-icing slip coating and preparation method and application thereof

Technical Field

The invention relates to the technical field of functional coatings, in particular to a high-retention composite anti-ice sliding coating of a lubricant, and a preparation method and application thereof.

Background

In the fields of aerospace, electrical networks, machinery, engineering, etc., icing on the bare surface of equipment or devices can cause immeasurable losses, and how to prevent icing has attracted attention from researchers. The key to anti/de-icing research is to reduce the adhesion between ice and surface. Existing anti-icing strategies can be divided into two approaches: the first is an active strategy relying primarily on external energy input, and the second is a passive strategy based primarily on liquid repellent technology. Passive strategies, compared to active strategies, are free from energy and system constraints and are considered to be one of the most important components of the new generation of anti-icing systems.

Hydrophobic surfaces and lubricant injection surfaces (SLIPS) are the most typical passive anti-icing surfaces, which rely on a lotus leaf-inspired solid-air interface and a nepenthes-inspired solid/liquid interface, respectively. Specifically, the former is mainly to construct a surface roughness structure by hydrophobic substances, and the super-hydrophobic surface is prepared by adopting methods of spraying, spin coating, dripping coating and the like. The latter is mainly through the surface construction porous structure, and carry on the hydrophobic modification, through injecting the liquid lubricant (such as silicone oil, perfluoro polyether, liquid paraffin, etc.), can reduce the interfacial ice adhesion effectively; wherein the liquid lubricant injection surface can achieve hydrophobic and super-slip through a liquid film formed by the liquid lubricant. But poor durability makes it difficult for these surfaces to retain anti-icing function in harsh external environments, such as under high speed, high pressure or high shear conditions.

In the case of a liquid lubricant injection surface, improving the liquid lubricant retention of the surface is beneficial for improving the anti-icing effect. The current mainstream is to design the oil-retaining structure, to hold the lubricant on the surface for a long period of time by means of a gel material (e.g. using PDMS and a curing agent to form a gel material) or by replacing the solid lubricant. However, the design process of the oil holding structure is complex; the gel material is difficult to hold the lubricant under the shearing action, so that the anti-icing failure is caused, and the strength of the coating and the adhesion force with the substrate are greatly reduced after the liquid lubricant is injected; the solid lubricant has a greatly improved strength as compared with the liquid lubricant, but the anti-icing effect is still to be improved.

Disclosure of Invention

The invention aims to provide a composite anti-icing and slipping coating with high lubricant holding capacity, a preparation method and application thereof.

In order to achieve the above object, the present invention provides the following technical solutions:

the invention provides a preparation method of a lubricant high-retention composite anti-ice sliding coating, which comprises the following steps:

providing a base coating, wherein the base coating comprises the following preparation raw materials in parts by mass: 100 parts of framework material, 0-40 parts of solid lubricant, 0.2-0.8 part of flatting agent, 0.2-0.8 part of defoamer, 0.2-1 part of catalyst and 20-75 parts of organic solvent; the framework material is a coating precursor and a curing agent; the coating precursor comprises a resin precursor and an organosilicon precursor;

coating the base layer coating on the surface of a substrate, and forming a skeleton base layer on the surface of the substrate after curing;

and injecting a liquid lubricant into the skeleton base layer, and forming a lubricant high-retention composite anti-ice-slip coating on the surface of the substrate.

Preferably, the resin precursor comprises one or more of polyurethane, epoxy resin, fluorosilicone resin and acrylic resin; the organosilicon precursor comprises one or more of hydroxyl silicone oil, amino silicone oil, divinyl end-capped silicone oil and polydimethylsiloxane.

Preferably, the curing agent includes a resin curing agent and a silicone curing agent.

Preferably, the resin curing agent comprises one or more of polyetheramine, polyamidoamine, hexafluorophosphate amine and isocyanate, and the mass of the resin curing agent is 5-50% of the mass of the resin precursor;

the organic silicon curing agent comprises one or more of tetraethoxysilane, tetrabutyl silicate, tetrabutyl titanate, ethyl titanate and polydimethylsiloxane curing agent, and the mass of the organic silicon curing agent is 5-50% of that of the organic silicon precursor.

Preferably, the solid lubricant comprises one or more of oleamide, erucamide, stearic acid amide, solid paraffin and octadecane.

Preferably, the liquid lubricant comprises one or more of perfluoropolyether, ethyl acetate, silicone oil and liquid paraffin.

Preferably, the injection mode of the liquid lubricant comprises dripping or soaking.

Preferably, the substrate comprises a metal, glass, fabric, paper, wood, cement or carbon fiber material.

The invention provides the lubricant high-retention composite anti-ice-slip coating prepared by the preparation method, which comprises a skeleton base layer and a liquid lubricant; the skeleton base layer is formed by base layer coating, liquid lubricant fills in the hole of skeleton base layer and forms the liquid film on the surface of skeleton base layer.

The invention provides application of the lubricant high-retention composite anti-icing sliding coating in surface anti-icing of wind power generation, aircrafts, airplanes, high and cold railway or radars.

The invention provides a preparation method of a lubricant high-retention composite anti-ice sliding coating, which comprises the following steps: providing a base coating, wherein the base coating comprises the following preparation raw materials in parts by mass: 100 parts of framework material, 0-40 parts of solid lubricant, 0.2-0.8 part of flatting agent, 0.2-0.8 part of defoamer, 0.2-1 part of catalyst and 20-75 parts of organic solvent; the framework material is a coating precursor and a curing agent; the coating precursor comprises a resin precursor and an organosilicon precursor; coating the base layer coating on the surface of a substrate, and forming a skeleton base layer on the surface of the substrate after curing; and injecting a liquid lubricant into the skeleton base layer, and forming a lubricant high-retention composite anti-ice-slip coating on the surface of the substrate. The invention forms the skeleton base layer with interpenetrating polymer network (comprising resin skeleton with hard property and high adhesive property and organosilicon skeleton with soft elastic property) by adopting the raw materials such as resin precursor, organosilicon precursor compound curing agent and the like, has extremely strong adhesive force on the surface of the substrate, can inhibit the problem of excessive expansion caused by the introduction of liquid lubricant, and overcomes the problems of low mechanical strength and low adhesive force caused by the injection of the liquid lubricant of the traditional gel material.

Further, by introducing the solid lubricant, on the basis of improving the holding capacity of the coating to the liquid lubricant, the loss and functional failure of the liquid lubricant due to the shearing and other effects can be greatly reduced, the sliding characteristic of the interface can be maintained for a long time, and the extremely low ice adhesion performance can be maintained for a long time.

Therefore, the coating prepared by the method can hold the liquid lubricant for a long time, maintain the anti-icing performance of the interface for a long time, has better bonding performance with the substrate, is suitable for various equipment surfaces with anti-icing requirements, and meets the strength requirements of the surfaces of devices such as aircrafts on the coating.

Meanwhile, the method provided by the invention has the advantages of simple raw materials, simplicity and convenience in operation, capability of preparing the coating in a large area, low production cost and suitability for large-scale production.

Drawings

FIG. 1 is a schematic illustration of a method of preparing a high-retention composite anti-ice slip coating of the present invention;

FIG. 2 is a schematic structural view of a high-holding composite anti-ice slip coating of the present invention;

FIG. 3 is a flow chart of a reaction for forming a silicone skeleton during curing in accordance with the present invention;

FIG. 4 is a flow chart of a reaction for forming a resin skeleton during curing according to the present invention;

FIG. 5 is an optical photograph of a lubricant high holding composite anti-ice slip coating of the present invention;

FIG. 6 is a graph showing contact angle test results of the composite anti-icing slip coatings prepared in examples 1 to 9 and comparative examples 1 to 6;

FIG. 7 is a graph showing the slip angle test results of the composite anti-ice slip coatings prepared in examples 1 to 9 and comparative examples 1 to 6;

FIG. 8 is a graph showing the results of ice adhesion test of the skeletal base layers (i.e., before injection of the composite anti-ice slip coating layer into the liquid lubricant) prepared in examples 1 to 9 and comparative examples 1 to 6;

FIG. 9 is a graph showing the results of ice adhesion test after the composite anti-ice slip coating prepared in examples 1 to 9 and comparative examples 1 to 6 is injected with a liquid lubricant;

FIG. 10 is a graph of oil content (examples 4-6) and ice adhesion strength (examples 4 and 6) over time for the lubricant high retention composite anti-ice slip coatings prepared in examples 4-6 when sheared at 2500 RPM;

FIG. 11 is a graph of oil content (examples 7-9) and ice adhesion strength (examples 7 and 9) over time for the lubricant high retention composite anti-ice slip coatings prepared in examples 7-9 when sheared at 2500 RPM.

Detailed Description

In the present invention, the raw materials used are commercially available products well known to those skilled in the art unless specified otherwise.

The invention provides a base coating, which is prepared from the following raw materials in parts by weight: 100 parts of framework material, 0-40 parts of solid lubricant, 0.2-0.8 part of flatting agent, 0.2-0.8 part of defoamer, 0.2-1 part of catalyst and 20-75 parts of organic solvent. The following describes each preparation raw material in detail.

The preparation raw materials of the base coating comprise 100 parts of framework materials in parts by mass. In the invention, the framework material is a coating precursor and a curing agent, and the coating precursor comprises a resin precursor and an organosilicon precursor, wherein when the coating precursor is the resin precursor and the organosilicon precursor, the resin precursor and the organosilicon precursor can be in any proportion, and the mass ratio of the resin precursor to the organosilicon precursor is (1-3): (1-3), more preferably 1:3, 1:1 or 3:1. In the present invention, the resin precursor preferably includes one or more of polyurethane, epoxy resin, fluorosilicone resin, and acrylic resin, and the epoxy resin is preferably an E51 type epoxy resin; the organosilicon precursor preferably comprises one or more of hydroxyl silicone oil, amino silicone oil, divinyl end-capped silicone oil and polydimethylsiloxane. According to the invention, the resin precursor and the organic silicon precursor are adopted as coating precursors, and under the action of the curing agent, the reaction and the complementary interference of the resin precursor and the organic silicon precursor can form a skeleton base layer with an interpenetrating polymer network (comprising a resin skeleton with high strength and high bonding performance and an organic silicon skeleton with soft elastic property), so that the bonding strength with a matrix can be improved, the lipophilicity of the coating is improved, and the absorption of a liquid lubricant is facilitated.

In the present invention, the curing agent preferably includes a resin curing agent and an organosilicon curing agent, specifically, the resin curing agent is used in combination with the resin precursor, and the organosilicon curing agent is used in combination with the organosilicon precursor. In the present invention, the resin curing agent preferably includes one or more of polyetheramine, polyamidoamine, hexafluorophosphate amine and isocyanate, and the mass of the resin curing agent is preferably 5 to 50% of the mass of the resin precursor, more preferably 20 to 40%, still more preferably 30 to 35%, still more preferably 33.3%. In the invention, the organic silicon curing agent comprises one or more of tetraethoxysilane, tetrabutyl silicate, tetrabutyl titanate, ethyl titanate and polydimethylsiloxane curing agent, and the polydimethylsiloxane curing agent is preferably 9400B polydimethylsiloxane curing agent; the mass of the silicone curing agent is preferably 5 to 50% of the mass of the silicone precursor, more preferably 6 to 30%, even more preferably 8 to 20%, and still more preferably 10 to 15%.

The preparation raw materials of the base coating comprise 0-40 parts by weight of solid lubricant, preferably 5-30 parts by weight, and more preferably 10-20 parts by weight of the framework material. In the present invention, the solid lubricant preferably includes one or more of oleamide, erucamide, stearamide, paraffin wax and octadecane. In the invention, the solid lubricant can be uniformly dispersed in the coating structure, so that the lipophilicity and lubricity of the coating are improved, and the holding of the liquid lubricant is facilitated.

The preparation raw materials of the base coating comprise 0.2-0.8 part of flatting agent, preferably 0.2-0.5 part of flatting agent by taking the mass parts of the framework material as the reference. In the invention, the leveling agent preferably comprises one or more of end group modified organosilicon, polyether polyester modified organosiloxane, alkyl modified organosiloxane, acrylic leveling agent and fluorine leveling agent; in the embodiment of the invention, BYK300 leveling agent is specifically adopted.

The preparation raw materials of the base coating comprise 0.2-0.8 part of defoamer, preferably 0.2-0.5 part of defoamer based on the mass parts of the framework materials. In the present invention, the antifoaming agent preferably includes tributyl phosphate and/or trioctyl phosphate.

The preparation raw materials of the base coating comprise 0.2-1 part of catalyst, preferably 0.3-0.5 part of catalyst based on the mass parts of the framework material. In the present invention, the catalyst preferably includes an organotin-based catalyst, and the organotin-based catalyst preferably includes one or more of dibutyltin dilaurate, stannous octoate, and dibutyltin diacetate.

Based on the mass parts of the framework material, the preparation raw materials of the base coating comprise 100-10000 parts of organic solvent, preferably 800-1000 parts. In the present invention, the organic solvent preferably includes one or more of xylene, toluene, butyl acetate, ethyl acetate, acetone and ethanol.

In the present invention, the preparation method of the base layer paint preferably includes the steps of:

first mixing a coating precursor, a solid lubricant and an organic solvent to obtain a first dispersion liquid;

performing second mixing on the first dispersion liquid, the curing agent, the leveling agent and the defoaming agent to obtain second dispersion liquid;

and thirdly mixing the second dispersion liquid with a catalyst to obtain the base coating.

In the present invention, the first mixing is preferably performed under stirring and ultrasonic conditions in sequence; the stirring is preferably mechanical stirring; the stirring and ultrasonic conditions are based on ensuring that the preparation raw materials are fully and uniformly mixed and a clear first dispersion liquid is obtained. In the present invention, the second mixing and the third mixing are preferably performed under stirring conditions, in order to ensure that the respective preparation raw materials are sufficiently and uniformly mixed.

After the base layer coating is obtained, the base layer coating is coated on the surface of a substrate, and after curing, a skeleton base layer is formed on the surface of the substrate. In the present invention, the material of the substrate preferably includes metal, glass, fabric, paper, wood, cement or carbon fiber material; the substrate may specifically be a sheet material. In the present invention, the substrate is preferably subjected to pretreatment before use, preferably comprising washing and drying in sequence; the cleaning agent used for the washing preferably comprises ethanol, acetone or xylene; the conditions for the drying are not particularly limited, and the present invention can achieve sufficient drying. In the present invention, the means of coating preferably includes spray coating, spin coating, drop coating, dip coating or blade coating; the specific conditions of the coating and the coating amount of the base layer coating are not particularly limited, and the skeleton base layer meeting the thickness requirement can be obtained after the curing. In the present invention, the curing temperature is preferably 20 to 85 ℃, more preferably 80 to 85 ℃; the time is preferably 2-24 hours to ensure full curing as a benchmark; the curing is preferably carried out under stationary conditions. In the invention, the organic solvent is fully volatilized and removed in the curing process, and the coating precursor is fully crosslinked and cured under the action of the curing agent. The thickness of the skeleton base layer is not particularly limited, and the skeleton base layer is selected according to actual needs, and specifically, the thickness of the skeleton base layer is preferably 10-500 mu m.

After the skeleton base layer is obtained, the liquid lubricant is injected into the skeleton base layer, and the lubricant high-retention composite anti-icing sliding coating is formed on the surface of the substrate. In the present invention, the liquid lubricant preferably includes one or more of perfluoropolyether, ethyl acetate, silicone oil (i.e., simethicone) and liquid paraffin, and the viscosity of the silicone oil is preferably 250 to 500mpa·s, more preferably 350mpa·s. In the present invention, the injection mode of the liquid lubricant preferably includes dripping or soaking, and the soaking can be performed under normal pressure or vacuum condition; the soaking time is preferably 6-24 hours, more preferably 10-12 hours; the soaking is preferably performed under resting conditions. The injection amount of the liquid lubricant is not particularly limited, so that the liquid lubricant can be fully injected.

The invention provides the lubricant high-retention composite anti-ice-slip coating prepared by the preparation method, which comprises a skeleton base layer and a liquid lubricant; the skeleton base layer is formed by base layer coating, liquid lubricant fills in the hole of skeleton base layer and forms the liquid film on the surface of skeleton base layer. In the present invention, the solid lubricant is specifically dispersed in the skeletal base layer in a solid state.

The technical solutions of the present invention will be clearly and completely described in the following in connection with the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Examples 1 to 9

A lubricant high retention composite anti-ice slip coating was prepared according to the formulation in table 1, specifically as follows:

mixing a resin precursor (particularly E51 type epoxy resin), an organosilicon precursor (particularly hydroxyl silicone oil), a solid lubricant (particularly erucamide) and xylene, and sequentially carrying out mechanical stirring and ultrasonic treatment to uniformly mix the components to obtain a clear first dispersion;

adding a resin curing agent (specifically polyetheramine), an organosilicon curing agent (specifically tetraethyl orthosilicate), a leveling agent (specifically BYK300 leveling agent) and a defoaming agent (specifically tributyl phosphate) into the first dispersion liquid, and uniformly stirring and mixing to obtain a second dispersion liquid;

adding a catalyst (specifically, dibutyl tin dilaurate) into the second dispersion liquid, and stirring and mixing uniformly to obtain a base coating;

cleaning a substrate (particularly a glass sheet) with a cleaning agent (particularly acetone), drying, spraying the base layer coating on the surface of the dried substrate by adopting a compressed air-driven spray gun, and then curing for 2 hours at 80 ℃ to form a skeleton base layer on the surface of the substrate;

placing the substrate attached with the skeleton base layer into a liquid lubricant (specifically silicone oil with viscosity of 350 mPa.s), soaking for 12h under vacuum condition, and obtaining the lubricant high-retention composite anti-ice-slip coating on the surface of the substrate.

Table 1 amounts of raw materials for each preparation in the base coating of examples 1 to 9

Comparative examples 1 to 6

A skeletal base layer and a composite anti-ice slip coating layer were prepared as in example 1, except that the amounts of the respective preparation raw materials used in preparing skeletal base layers of comparative examples 1 to 6 were as shown in table 2.

TABLE 2 amounts of raw materials for preparation in the base coating of comparative examples 1 to 6

Fig. 1 is a schematic diagram of a preparation method of a lubricant high-retention composite anti-ice-slip coating according to the present invention, wherein the preparation raw materials of a base coating are mixed and sprayed onto a substrate surface to form a skeleton base layer, which can be used as a lubricant retention skeleton, a liquid lubricant injected subsequently is filled into pores of the lubricant retention skeleton, and finally the lubricant high-retention composite anti-ice-slip coating is formed on the substrate surface.

FIG. 2 is a schematic structural view of a high-retention composite anti-ice-slip coating of a lubricant according to the present invention, wherein an interpenetrating polymer network (comprising a resin skeleton with hard property and high adhesive property and a silicone skeleton with soft elastic property) is formed by adopting raw materials such as a resin precursor, a silicone precursor compound curing agent, etc., which has extremely strong adhesive force and can inhibit the problem of excessive expansion caused by the introduction of the liquid lubricant, thereby overcoming the problems of low mechanical strength and low adhesive force caused by injecting a gel material into the liquid lubricant (the ground color of the skeleton base layer in FIG. 2 represents the liquid lubricant filled into the skeleton base layer, and the liquid film formed on the surface of the skeleton base layer by the liquid lubricant is not illustrated in FIG. 2); by introducing the solid lubricant, the holding capacity of the coating to the liquid lubricant is improved, the loss and functional failure of the liquid lubricant caused by shearing and other effects can be greatly reduced, the sliding characteristic of the interface can be kept for a long time, and the extremely low ice adhesion performance can be kept for a long time.

FIG. 3 is a flow chart of a reaction for forming an organosilicon skeleton in the curing process of the invention, wherein an organosilicon precursor is hydroxyl silicone oil, an organosilicon curing agent is Tetraethoxysilane (TEOS), a catalyst is dibutyl tin dilaurate, and a condensation reaction is carried out between a hydrolysis product of the TEOS and a hydroxyl end group of the hydroxyl silicone oil under the catalysis of the dibutyl tin dilaurate, so that the organosilicon skeleton is formed.

Fig. 4 is a reaction flow chart of forming a resin skeleton in the curing process of the present invention, taking E51 epoxy resin as a resin precursor and polyetheramine as a resin curing agent as an example, a primary amine group of polyetheramine may undergo a ring-opening reaction with the E51 epoxy resin, thereby forming a crosslinked polymer hard skeleton, i.e., a resin skeleton.

FIG. 5 is an optical photograph of a lubricant high holding composite anti-ice slip coating of the present invention, showing that the surface of the lubricant high holding composite anti-ice slip coating exhibits white color.

Performance testing

Fig. 6 is a graph showing the contact angle test results of the composite anti-icing slip coatings prepared in examples 1 to 9 and comparative examples 1 to 6, in which the content of the organosilicon skeleton is the percentage of the total mass of the organosilicon precursor, the organosilicon curing agent, the resin precursor, and the resin curing agent, based on the total mass of the organosilicon precursor and the organosilicon curing agent. The results show that the lubricant high-retention composite anti-icing slip coatings prepared in examples 1-9 exhibit good hydrophobic properties, with contact angles of specifically 82-90 °, according to the differences in the content of the silicone skeleton and the content of the solid lubricant.

Fig. 7 is a graph showing the slip angle test results of the composite anti-icing slip coatings prepared in examples 1 to 9 and comparative examples 1 to 6, and the results show that the lubricant high-retention composite anti-icing slip coatings prepared in examples 1 to 9 exhibit excellent drop slip characteristics according to the content of the silicone skeleton and the content of the solid lubricant, and the slip angle is specifically 2 ° to 6 °.

Fig. 8 is a graph showing the results of ice adhesion test of the skeletal base layers prepared in examples 1 to 9 and comparative examples 1 to 6 (i.e., before the composite anti-ice slip coating layer is injected with the liquid lubricant), and the results show that the skeletal base layers prepared in examples 1 to 9 have ice adhesion strengths of 30 to 53kPa. FIG. 9 is a graph of the results of ice adhesion testing of the composite anti-ice slip coatings prepared in examples 1-9 and comparative examples 1-6, showing that the high holding composite anti-ice slip coatings of the lubricants prepared in examples 1-9 exhibit very low ice adhesion strength (.ltoreq.16 kPa) with injection of the liquid lubricant.

FIG. 10 is a graph of oil content (examples 4-6) and ice adhesion strength (examples 4 and 6) as a function of time for the high holding composite anti-ice slip coatings prepared in examples 4-6 sheared at 2500RPM, the oil content being the mass of liquid lubricant present in the coating as a percentage of the mass of the initial liquid lubricant; the results show that a lubricant high holding composite anti-ice slip coating containing 50% silicone backbone content shears 1500 seconds at 2500RPM, yet still maintains very low ice adhesion (20 kPa) and 18% oil content.

FIG. 11 is a graph of oil content (examples 7-9) and ice adhesion strength (examples 7 and 9) of the high holding composite anti-ice slip coating of examples 7-9 over time when sheared at 2500RPM, showing that a lubricant high holding composite anti-ice slip coating containing 75% silicone backbone content sheared for 1500 seconds at 2500RPM, still maintains very low ice adhesion (20 kPa) and 20% oil content.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims

1. A preparation method of a lubricant high-retention composite anti-ice-slip coating comprises the following steps:

providing a base coating, wherein the base coating comprises the following preparation raw materials in parts by mass: 100 parts of framework material, 0-40 parts of solid lubricant, 0.2-0.8 part of flatting agent, 0.2-0.8 part of defoamer, 0.2-1 part of catalyst and 100-10000 parts of organic solvent; the framework material is a coating precursor and a curing agent; the coating precursor comprises a resin precursor and an organosilicon precursor;

2. The method of claim 1, wherein the resin precursor comprises one or more of polyurethane, epoxy, fluorosilicone, and acrylic; the organosilicon precursor comprises one or more of hydroxyl silicone oil, amino silicone oil, divinyl end-capped silicone oil and polydimethylsiloxane.

3. The production method according to claim 1 or 2, wherein the curing agent comprises a resin curing agent and a silicone curing agent.

4. The preparation method according to claim 3, wherein the resin curing agent comprises one or more of polyetheramine, polyamidoamine, hexafluorophosphate amine and isocyanate, and the mass of the resin curing agent is 5-50% of the mass of the resin precursor;

5. The method according to claim 1, wherein the solid lubricant comprises one or more of oleamide, erucamide, stearamide, paraffin wax and octadecane.

6. The method according to claim 1, wherein the liquid lubricant comprises one or more of perfluoropolyether, ethyl acetate, silicone oil, and liquid paraffin.

7. The method according to claim 1 or 6, wherein the injection of the liquid lubricant comprises dropping or soaking.

8. The method of claim 1, wherein the substrate comprises a metal, glass, fabric, paper, wood, cement, or carbon fiber material.

9. The lubricant high-retention composite anti-ice-slip coating prepared by the preparation method of any one of claims 1 to 8, comprising a skeleton base layer and a liquid lubricant; the skeleton base layer is formed by base layer coating, liquid lubricant fills in the hole of skeleton base layer and forms the liquid film on the surface of skeleton base layer.

10. Use of the lubricant high retention composite anti-icing slip coating of claim 9 for surface anti-icing of wind power generation, aircraft, high cold rail or radar.