阅读说明：本技术 一种高温的超导透明薄膜的制备方法 (Preparation method of high-temperature superconducting transparent film ) 是由 闫俊良 闫慧斌 刘永泉 黄开明 王*** 王广勇 余勇 刘永军 葛书长 白维斌 于 2019-08-13 设计创作，主要内容包括：本发明所述的一种高温的超导透明薄膜的制备方法,在硼烯及氧化铝的改性作用下,形成的高温的超导透明薄膜不仅能够使得覆膜后的钛合金、不锈钢、高温合金钢等基材可耐800℃高温、耐高温腐蚀、防沙尘、不易脱落、使用寿命长,还使其具备了高温超导性能及较优的透明度,满足了航空航天领域发动机热部件在沙漠高原等环境恶劣地区的高温超导要求及透明度要求。(According to the preparation method of the high-temperature superconducting transparent film, the high-temperature superconducting transparent film formed under the modification action of the boron alkene and the aluminum oxide can enable the coated titanium alloy, stainless steel, high-temperature alloy steel and other base materials to be resistant to high temperature of 800 ℃, resistant to high-temperature corrosion, resistant to sand and dust, not easy to fall off, long in service life, and further enable the high-temperature superconducting film to have high-temperature superconducting performance and excellent transparency, and the high-temperature superconducting requirements and transparency requirements of engine hot parts in the aerospace field in severe environments such as desert plateau and the like are met.)

1. The preparation method of the high-temperature superconducting transparent film is characterized by comprising the following steps of (1) preparing the following raw materials in parts by weight: 25-50 parts of water, 0.25-0.6 part of film forming agent, 0.25-0.6 part of dispersing agent, 1.5-3.5 parts of preservative, 0.6-1.5 parts of acetone, 0.5-1.5 parts of dimethanol, 0.3-0.8 part of chemical diluent, 0.5-1.2 parts of benzoyl, 0.5-1.5 parts of styrene, 0.35-0.8 part of penetrating agent, 0.35-0.85 part of film adhesive, 18-35 parts of sol, 2.5-6 parts of rare earth, 2-6 parts of boron alkene and 1-5 parts of aluminum oxide; the rare earth, the boron alkene and the alumina are all solid phase components with the granularity of not less than 12500 meshes;

(2) placing water in a container at room temperature, adding a film forming agent, a dispersing agent, a preservative, acetone, dimethyl carbinol, a chemical diluent, benzoyl, styrene and a penetrating agent, heating to 120 ℃, and stirring and mixing uniformly;

(3) cooling the mixed solution obtained in the step (2) to 60 ℃, adding the sol and the film adhesive, and stirring and mixing uniformly;

(4) cooling the mixed solution obtained in the step (3) to 45 ℃, adding rare earth, boron alkene and aluminum oxide, and then continuously stirring and uniformly mixing to obtain the coating of the high-temperature superconducting transparent film;

(5) and (3) after chemical deposition and separation, putting the piece to be plated into a vacuum chamber, putting the coating in the step (4) into an automatic film plating device in the vacuum chamber, vacuumizing the vacuum chamber, and heating and plating the film on the piece to be plated through the automatic film plating device, thereby forming a high-temperature superconducting transparent film on the surface of the piece to be plated.

2. The method for preparing a high temperature superconducting transparent film according to claim 1, wherein in step (1), the weight parts of water are 35 to 50, the weight parts of sol are 18 to 32, the weight parts of rare earth are 4 to 6, and the weight parts of borane are 2.5 to 6.

3. A method for preparing a high temperature superconducting transparent film according to claim 1 or 2, wherein in the step (2), 0.25 to 0.6 parts by weight of a defoaming agent is added during stirring and mixing.

4. The method for preparing a high temperature superconducting transparent film according to claim 3, wherein in the step (4), 2.5 to 6 parts by weight of silicone emulsion is added during stirring and mixing.

5. The method for preparing a high-temperature superconducting transparent film according to claim 4, wherein the weight part of the organic silicon emulsion is 4-6.

6. A method for preparing a high temperature superconducting transparent film according to any one of claims 1 to 5, wherein the boron alkene is replaced by boron carbide.

Technical Field

The invention relates to the technical field of high-temperature superconducting transparent materials, in particular to a preparation method of a high-temperature superconducting transparent film.

Background

Resin-based films are generally paint films and are widely applied to the fields of automobile glass, household door and window glass and the like. The production process of the sizing agent of the paint film is to organically synthesize natural substances and various general resins into water-based composite sizing agent, the paint film formed by taking the sizing agent as a raw material has flammability, for example, a heat insulation protective film produced by 3M company can only be used as a heat insulation film of daily living goods such as glass and the like at normal temperature. For high-temperature fields such as aerospace, the existing resin film raw materials and production processes can not meet the requirements on abrasion resistance, high temperature resistance, super-thermal performance, thermal erosion resistance and the like, and the existing high-temperature resistant film in the aerospace field, such as a preparation method of an ultrahigh-temperature graphene composite film with the publication number of CN108913021A, adopts an aqueous coating comprising graphene, sericite, rare earth, diatomite, a defoaming agent, a dispersing agent, sol and an organic silicon emulsion, can form a protective film which can resist high temperature of 1000 ℃ and high-temperature corrosion on a substrate such as titanium alloy, stainless steel, high-temperature alloy steel and the like, but has poor high-temperature superconducting performance and low transparency, and can not be used for parts with high-temperature superconducting requirements in the aerospace field.

Disclosure of Invention

In order to solve the problems, the invention provides the preparation method of the high-temperature superconducting transparent film which has good high-temperature superconducting performance, high transparency, high temperature resistance of 800 ℃, high-temperature corrosion resistance, wear resistance, no falling, good heat-insulating performance and long service life, and can better meet the design requirements of the high-temperature superconducting performance and transparency of the heat component of the multi-model aircraft engine.

The invention adopts the following technical scheme:

a preparation method of a high-temperature superconducting transparent film comprises the following steps of (1) preparing the following raw materials in parts by weight: 25-50 parts of water, 0.25-0.6 part of film forming agent, 0.25-0.6 part of dispersing agent, 1.5-3.5 parts of preservative, 0.6-1.5 parts of acetone, 0.5-1.5 parts of dimethanol, 0.3-0.8 part of chemical diluent, 0.5-1.2 parts of benzoyl, 0.5-1.5 parts of styrene, 0.35-0.8 part of penetrating agent, 0.35-0.85 part of film adhesive, 18-35 parts of sol, 2.5-6 parts of rare earth, 2-6 parts of boron alkene and 1-5 parts of aluminum oxide; the rare earth, the boron alkene and the alumina are all solid phase components with the granularity of not less than 12500 meshes;

(2) placing water in a container at room temperature, adding a film forming agent, a dispersing agent, a preservative, acetone, dimethyl carbinol, a chemical diluent, benzoyl, styrene and a penetrating agent, heating to 120 ℃, and stirring and mixing uniformly;

(3) cooling the mixed solution obtained in the step (2) to 60 ℃, adding the sol and the film adhesive, and stirring and mixing uniformly;

(4) cooling the mixed solution obtained in the step (3) to 45 ℃, adding rare earth, boron alkene and aluminum oxide, and then continuously stirring and uniformly mixing to obtain the coating of the high-temperature superconducting transparent film;

(5) and (3) after chemical deposition and separation, putting the piece to be plated into a vacuum chamber, putting the coating in the step (4) into an automatic film plating device in the vacuum chamber, vacuumizing the vacuum chamber, and performing heating film plating on the piece to be plated through the automatic film plating device so as to form a high-temperature superconducting transparent film on the surface of the piece to be plated.

Preferably, in the step (1), the weight parts of water are 35-50, the weight parts of sol are 18-32, the weight parts of rare earth are 4-6, and the weight parts of borane are 2.5-6.

Preferably, in the step (2), 0.25 to 0.6 parts by weight of an antifoaming agent is added during the mixing with stirring.

Preferably, in the step (4), 2.5 to 6 parts by weight of the silicone emulsion is added during stirring and mixing.

Preferably, the weight part of the organic silicon emulsion is 4-6.

Preferably, the boron ene may be replaced by boron carbide.

The superconducting transparent coating disclosed by the invention has the following advantages:

1. according to the preparation method of the high-temperature superconducting transparent film, the high-temperature superconducting transparent film formed under the modification action of the boron alkene and the aluminum oxide can enable the coated titanium alloy, stainless steel, high-temperature alloy steel and other base materials to be resistant to high temperature of 800 ℃, resistant to high-temperature corrosion, resistant to sand and dust, not easy to fall off, long in service life, and further enable the high-temperature superconducting film to have high-temperature superconducting performance and excellent transparency, and the high-temperature superconducting requirements and transparency requirements of engine hot parts in the aerospace field in severe environments such as desert plateau and the like are met.

2. When the granularity of solid phase raw materials such as rare earth, boron alkene, alumina and the like reaches more than 12500 meshes, auxiliary liquid phase raw materials such as film forming agents, dispersing agents, preservatives, acetone, dimethyl carbinol, chemical diluents, benzoyl, styrene, penetrating agents and the like with corresponding components are mixed with the solid phase raw materials uniformly at different temperatures, so that the solid phase and the liquid phase components are well matched with each other to form the high-temperature superconducting transparent film which is resistant to thermal corrosion caused by wind-sand scouring hot hard force in a plateau area and is not easy to fall off.

3. According to the preparation method of the high-temperature superconducting transparent film, the high-temperature superconducting transparent film is internally provided with a transverse heat conduction and longitudinal heat insulation structure by utilizing more than 12500 meshes of boron alkene and aluminum oxide, so that the high-temperature superconducting transparent film can resist the high temperature of 800 ℃, the high-temperature transverse heat dissipation rate of a coated common base material is more than 5 times that of the common base material, and the coated common base material has a longitudinal heat insulation function (in the thickness direction of a coated piece), and can become an indispensable organization structure in the heat balance management process of an aircraft engine; the high-temperature superconducting transparent film has super-strong and super-hard film properties after the boron alkene is mixed with the solid-liquid phase raw materials, and the problem of thermal corrosion caused by wind sand scouring hot hard force in plateau areas of aeroengines and the like is solved.

4. According to the preparation method of the high-temperature superconducting transparent film, the double-layer film with the warping structure is formed on the base material after vacuum coating, and the modification effect of aluminum oxide is added, so that the superconducting transition temperature of the boron alkene is further increased.

Detailed Description

The embodiment of the invention adopts the following raw materials:

water: purified water.

Film-forming agent: alcohol ester dodecyl/dodecyl alcohol ester AD-82, available from OneDischemie, Guangzhou; but are not limited to, products from that company.

Dispersing agent: the AD-28 sodium salt dispersant is an aqueous solution of sodium salt of an unsaturated carboxylic acid copolymer, available from Onedea chemical Co., Ltd, Guangzhou; but are not limited to, products from that company.

Defoaming agent: TEGO Airex 962, a high defoamer of Desgasedi, available from Kyork chemical Co., Ltd; but are not limited to, products from that company.

Preservative: aqueous coating preservative AD-2.5, available from Guangzhou Onde chemical Co., Ltd; but are not limited to, products from that company.

Chemical diluent: purchased from Koran chemical Co., Suzhou; but are not limited to, products from that company.

Penetrant: the penetrating agent JFC-M is purchased from Daili chemical Co., Ltd, Hebei; but are not limited to, products from that company.

Film adhesive: american omega Bar^TMFrom omega bond official website; but are not limited to, products from that company.

Sol: nano alumina sol purchased from hangzhou jikang new materials limited; but are not limited to, products from that company.

Acetone: purchased from Koran chemical Co., Suzhou; but are not limited to, products from that company.

Dimethanol: purchased from Koran chemical Co., Suzhou; but are not limited to, products from that company.

Benzoyl: purchased from Koran chemical Co., Suzhou; but are not limited to, products from that company.

Styrene: purchased from Koran chemical Co., Suzhou; but are not limited to, products from that company.

Rare earth: the granularity is above 12500 meshes, and the product can be purchased from Zhengzhou Dengyuan chemical products, Inc., but is not limited to the product of the company.

Boron ene or boron carbide: the granularity is above 12500 meshes; available from Zhengzhou province chemical products, Inc., but not limited thereto.

Alumina: the granularity is above 12500 meshes, and the product can be purchased from Zhengzhou Dengyuan chemical products, Inc., but is not limited to the product of the company.