CN111518473B - Nano-zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating and preparation method thereof - Google Patents

Nano-zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating and preparation method thereof Download PDF

Info

Publication number
CN111518473B
CN111518473B CN202010301291.3A CN202010301291A CN111518473B CN 111518473 B CN111518473 B CN 111518473B CN 202010301291 A CN202010301291 A CN 202010301291A CN 111518473 B CN111518473 B CN 111518473B
Authority
CN
China
Prior art keywords
component
parts
modified epoxy
polysiloxane
organic silicon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010301291.3A
Other languages
Chinese (zh)
Other versions
CN111518473A (en
Inventor
梁新磊
易祖耀
王震宇
王刚
李娜
刘亚伟
王剑利
韩恩厚
商永强
王帅
刘茜
常峻玮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institute of Metal Research of CAS
Huadian Zhengzhou Machinery Design and Research Institute Co Ltd
Original Assignee
Institute of Metal Research of CAS
Huadian Zhengzhou Machinery Design and Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Institute of Metal Research of CAS, Huadian Zhengzhou Machinery Design and Research Institute Co Ltd filed Critical Institute of Metal Research of CAS
Priority to CN202010301291.3A priority Critical patent/CN111518473B/en
Publication of CN111518473A publication Critical patent/CN111518473A/en
Application granted granted Critical
Publication of CN111518473B publication Critical patent/CN111518473B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C09D5/10—Anti-corrosive paints containing metal dust
    • C09D5/103—Anti-corrosive paints containing metal dust containing Al
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0812—Aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2244—Oxides; Hydroxides of metals of zirconium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group

Abstract

The invention relates to the technical field of industrial energy conservation and consumption reduction, in particular to a nano-zirconia modified epoxy organic silicon heat-insulating corrosion-resistant multifunctional coating and a preparation method thereof, and solves the problems of low heat-insulating energy-saving efficiency, non-corrosion resistance and the like in the prior art. The material consists of a component A and a component B, epoxy organic silicon resin, polysiloxane polymer, modified nano zirconia, asbestos fiber powder or/and glass fiber powder, hollow glass micro-beads, silicon carbide, non-floating aluminum powder, fumed silica and a silane coupling agent, wherein an amine curing agent is used as the component B; and curing the component A and the component B to prepare the nano zirconia modified epoxy-organosilicon heat-insulating corrosion-resistant multifunctional coating. The material has the characteristics of high efficiency, heat insulation, corrosion resistance and the like, and can be applied to the fields of petroleum, chemical industry, metallurgy and the like.

Description

Nano-zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating and preparation method thereof
Technical Field
The invention relates to the technical field of industrial energy conservation and consumption reduction, in particular to a nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating and a preparation method thereof.
Background
Some facilities for heat insulation and heat preservation are in a corrosive environment for a long time, and corrosion is accelerated by high operating temperature, so that the heat insulation protection of key components fails and the design service life cannot be reached. Some equipment and pipelines in the petrochemical industry, the electric power industry and the like need to be insulated, and at present, organic resin insulation coatings and silicate insulation materials are mainly adopted. The organic heat-insulating coating has low heat resistance, and the silicate inorganic heat-insulating coating is easy to absorb water and degrade, so that the heat-insulating property is greatly reduced, and loss and safety problems are caused. Therefore, the research and development of novel heat-insulating coating integrating high efficiency, energy conservation and anticorrosion protection are urgent, the heat-insulating protection problem of facilities is solved, and the safe and economic operation of production is ensured. Along with the needs of our country for economic high-speed development and conservation-oriented society, the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating plays an important role.
Disclosure of Invention
In order to solve the problems, the invention provides a nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating and a preparation method thereof, which solve the problems of low heat-insulating energy-saving efficiency, non-corrosion resistance and the like in the prior art.
The object of the invention is achieved in the following way: a nanometer zirconia modified epoxy organosilicon-polysiloxane heat insulation corrosion resistant coating comprises the following raw materials in parts by weight,
(1) a component A:
modified nano zirconia slurry: 1.5-3.5 parts; epoxy silicone resin: 30.0-34.0 parts; a polysiloxane polymer having a weight average molecular weight in the range of 2400 to 6800: 8.0-11.0 parts; asbestos fiber powder or/and glass fiber powder: 3.0-6.0 parts; 33.0-41.0 parts of hollow glass beads with different particle sizes and used in a matching way between 50 meshes and 300 meshes; 400-800 mesh silicon carbide: 6.0-9.0 parts; non-floating aluminum powder: 4.0-5.0 parts; fumed silica: 0 part or 1.0 to 1.5 parts; silane coupling agent: 1.0-2.5 parts;
(2) b, component B: an amine-based curing agent;
the component A comprises the following components in percentage by weight: component b = 100: (10-23).
The hollow glass beads with different particle sizes are used in a matching way between 50 meshes and 300 meshes: 200-mesh hollow glass beads: 20.0-23.0 parts; 60-mesh hollow glass beads: 13.0 to 18.0 parts.
The epoxy silicone resin may be a titanate-modified epoxy silicone resin.
The amine curing agent is polyamide curing agent or alicyclic amine curing agent, and the polyamide curing agent can be 650 polyamide curing agents.
The polysiloxane polymer with the weight-average molecular weight ranging from 2400 to 6800 is W991-6 polysiloxane polymer, RSN-6018 organic silicon resin and RSN-0805 organic silicon resin.
The preparation method of the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following steps:
(1) preparation of the component A:
adding a polysiloxane polymer into epoxy organic silicon resin, heating and keeping for 1.5-2.5 hours at 110-130 ℃, and vacuumizing for 15-30 minutes; reducing the temperature to 30-50 ℃, adding the modified nano zirconia slurry, electromagnetically stirring for 1.0-1.5 hours, and then ultrasonically dispersing for 10-15 minutes to obtain a nano zirconia modified epoxy organosilicon polymer; cooling to room temperature, and adding asbestos fiber powder or/and glass fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 40-60 ℃ for 0.5-1.0 h, and then stirring and dispersing for 20-30 min at 300-500 rpm by using a high-speed stirrer to prepare a component A;
(2) the nanometer zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following components in percentage by weight:
and the component B is an amine curing agent, and the component A and the component B are mixed and cured to prepare the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating.
In the step (1), the epoxy organic silicon resin is titanate modified epoxy organic silicon resin, and the preparation of the titanate modified epoxy organic silicon resin comprises the following steps: mixing the titanate coupling agent and the epoxy organic silicon resin, heating and keeping at 50-100 ℃ for 1.0-2.5 hours, and vacuumizing for 15-20 minutes to obtain the titanate modified epoxy organic silicon resin.
The weight ratio of the titanate coupling agent to the epoxy organic silicon resin is 0.8-4.0: 100.
in the step (2), the amine curing agent is 650 polyamide curing agent, and the component A comprises: the weight ratio of the component B is 100: 15-23; and mixing the component A and the component B, and curing for 24-96 hours at 15-100 ℃ to obtain the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating.
The invention has the following advantages and beneficial effects:
1. the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating prepared by the invention can be used in a large heat loss and corrosive environment for a long time, and has the advantages of heat insulation, energy conservation, corrosion resistance, temperature change resistance and the like.
2. The high-temperature resistant polysiloxane polymer and the epoxy organic silicon resin are compounded for use, the high-temperature resistant polysiloxane polymer and the epoxy organic silicon resin are appropriately reacted through the coupling agent and the nano zirconia surface active group, and the amine curing agent is adopted to enable the high-temperature resistant polysiloxane polymer and the epoxy organic silicon resin to have partial curing reaction at normal temperature, so that coating construction is facilitated; further achieves complete curing in the subsequent high-temperature use process.
3. According to the invention, the modified nano zirconia slurry is introduced into the protective material, and the anti-permeability of the heat-insulating coating is improved by utilizing the stable dispersed net structure of the modified nano zirconia slurry, so that the temperature resistance, heat insulation and corrosion resistance of the coating are synchronously improved. The nano zirconia slurry in the application comes from the institute of metal research of the Chinese academy of sciences, and the specific preparation process can be seen in the Chinese patent invention: "patent number: ZL 02109457.8.
4. The paint can be formed by brush coating or spray coating, the component A is prepared by adopting epoxy organic silicon resin, polysiloxane polymer, modified nano zirconia, hollow glass micro-beads, non-floating aluminum powder, silicon carbide, asbestos fiber powder, an auxiliary agent and the like, the component B is polyamide, and the two components are cured to form the heat-insulating corrosion-resistant multifunctional paint with the thickness of 0.5-5 mm.
Detailed Description
The object of the invention is achieved in the following way: a nanometer zirconia modified epoxy organosilicon-polysiloxane heat insulation corrosion resistant coating comprises the following raw materials in parts by weight,
(1) a component A:
modified nano zirconia slurry: 1.5-3.5 parts; epoxy silicone resin: 30.0-34.0 parts; polysiloxane polymer: 8.0-11.0 parts; asbestos fiber powder or/and glass fiber powder: 3.0-6.0 parts; 33.0-41.0 parts of hollow glass beads with different particle sizes and used in a matching way between 50 meshes and 300 meshes; 400-800 mesh silicon carbide: 6.0-9.0 parts; non-floating aluminum powder: 4.0-5.0 parts; fumed silica: 0 part or 1.0 to 1.5 parts; silane coupling agent: 1.0-2.5 parts;
the silane coupling agent can be N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane or gamma-methacryloxypropyltrimethoxysilane.
(2) B, component B: an amine-based curing agent;
the component A comprises the following components in percentage by weight: component b = 100: (10-23).
The hollow glass beads with different particle sizes are used in a matching way between 50 meshes and 300 meshes: 200-mesh hollow glass beads: 20.0-23.0 parts; 60-mesh hollow glass beads: 13.0 to 18.0 parts.
The epoxy silicone resin may be a titanate-modified epoxy silicone resin.
The amine curing agent is polyamide curing agent or alicyclic amine curing agent, and the polyamide curing agent can be 650 polyamide curing agents.
The polysiloxane polymer with the weight-average molecular weight ranging from 2400 to 6800 is W991-6 polysiloxane polymer, RSN-6018 organic silicon resin and RSN-0805 organic silicon resin.
The preparation method of the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following steps:
(1) preparation of the component A:
adding a polysiloxane polymer into epoxy organic silicon resin, heating and keeping for 1.5-2.5 hours at 110-130 ℃, and vacuumizing for 15-30 minutes; reducing the temperature to 30-50 ℃, adding the modified nano zirconia slurry, electromagnetically stirring for 1.0-1.5 hours, and then ultrasonically dispersing for 10-15 minutes to obtain a nano zirconia modified epoxy organosilicon polymer; cooling to room temperature, and adding asbestos fiber powder or/and glass fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 40-60 ℃ for 0.5-1.0 h, and then stirring and dispersing for 20-30 min at 300-500 rpm by using a high-speed stirrer to prepare a component A;
(2) the nanometer zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following components in percentage by weight:
and the component B is an amine curing agent, and the component A and the component B are mixed and cured to prepare the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating.
In the step (1), the epoxy organic silicon resin is titanate modified epoxy organic silicon resin, and the preparation of the titanate modified epoxy organic silicon resin comprises the following steps: mixing the titanate coupling agent and the epoxy organic silicon resin, heating and keeping at 50-100 ℃ for 1.0-2.5 hours, and vacuumizing for 15-20 minutes to obtain the titanate modified epoxy organic silicon resin.
The weight ratio of the titanate coupling agent to the epoxy organic silicon resin is 0.8-4.0: 100.
in the step (2), the amine curing agent is 650 polyamide curing agent, and the component A comprises: the weight ratio of the component B is 100: 15-23; and mixing the component A and the component B, and curing for 24-96 hours at 15-100 ℃ to obtain the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating.
The present invention is described in detail below with reference to specific embodiments, it should be noted that the embodiments are only used for further illustration of the present invention, and should not be construed as limiting the scope of the present invention, and those skilled in the art can make modifications and adaptations of the present invention based on the above-mentioned disclosure. In the examples, W991-6 polysiloxane polymer, namely W991-6 silicone resin, is produced by Shenyi Special coating Co., Ltd, Zr-01 nano zirconia slurry is from the institute of metals of Chinese academy of sciences, and the specific preparation process can be seen in Chinese invention patents: "patent number: ZL 02109457.8, name: a nano zirconia slurry composition and a method for preparing the same ", as in embodiment 3. RSN-6018 Silicone resins, RSN-0805 Silicone resins are produced by Dow Corning, USA.
Example 1
In the embodiment, the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises a component A and a component B, and the specific formula comprises the following components in parts by weight:
1. a component A: zr-01 nano zirconia slurry: 1.8 parts; titanate modified epoxy silicone resin: 33.2 parts of; w991-6 polysiloxane Polymer: 10.0 parts; 80-mesh asbestos fiber powder: 5.0 parts of (B); 200-mesh hollow glass beads: 21.5 parts; 60-mesh hollow glass beads: 15.5 parts; 600-mesh silicon carbide: 7.0 parts; non-floating aluminum powder: 4.0 parts of (B); fumed silica: 1.0 part; silane coupling agent: 1.0 part; the silane coupling agent is N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxysilane.
2. B, component B: 650 Polyamide curing agent: 15 parts of (1);
a component A: the weight ratio of the component B is 100: 15.
the preparation method comprises the following steps: the method comprises the following steps of (1) mixing a titanate coupling agent, namely isopropyl tri (dioctyl pyrophosphate) titanate, and epoxy organic silicon resin, namely HG-43 epoxy organic silicon resin according to the weight ratio of 1.8: 100, heating at 58 ℃ for 1.5 hours, and vacuumizing for 16 minutes to obtain the titanate modified epoxy organic silicon resin. Then adding polysiloxane polymer-W991-6 organic silicon resin, heating and keeping for 2.0 hours at 110 ℃, and vacuumizing for 30 minutes; reducing the temperature to 45 ℃, adding Zr-01 nano zirconia slurry, electromagnetically stirring for 1.0 hour, and then ultrasonically dispersing for 12 minutes to obtain a nano zirconia modified epoxy organosilicon polymer; cooling to 18 ℃ at room temperature, and then adding asbestos fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 50 deg.C for 1.0 hr, and stirring and dispersing at 400rpm for 20 min with high speed stirrer to obtain component A; and adding 650 parts of a polyamide curing agent as the component B, uniformly mixing, and curing at 25 ℃ for 72 hours to obtain the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating. The coating can be applied by brushing, has strong binding force with a metal base material, resists high temperature of 200 ℃, has good heat-insulating property and resists corrosion.
Example 2
In the embodiment, the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises a component A and a component B, and the specific formula comprises the following components in parts by weight:
1. a component A: zr-01 nano zirconia slurry: 3.0 parts of (B); titanate modified epoxy silicone resin: 30.0 parts; w991-6 polysiloxane Polymer: 11.0 parts; 80-mesh asbestos fiber powder: 3.5 parts; 200-mesh hollow glass beads: 22.0 parts of (B); 60-mesh hollow glass beads: 16.0 parts of (B); 600-mesh silicon carbide: 6.5 parts; non-floating aluminum powder: 5.0 parts of (B); fumed silica: 1.3 parts; silane coupling agent: 1.7 parts; the silane coupling agent is gamma-methacryloxypropyl trimethoxy silane.
2. B, component B: 650 Polyamide curing agent: 17 parts of (1); a component A: the weight ratio of the component B is 100: 17.
the preparation method comprises the following steps: the titanate coupling agent-isopropyl tri (isostearoyl) titanate and epoxy organic silicon resin-HG-43 epoxy organic silicon resin are mixed according to the weight ratio of 2.6: 100, heating at 75 ℃ for 2.0 hours, and vacuumizing for 20 minutes to obtain the titanate modified epoxy organic silicon resin. Then adding polysiloxane polymer-W991-6 organic silicon resin, heating and keeping at 120 ℃ for 1.5 hours, and vacuumizing for 20 minutes; reducing the temperature to 40 ℃, adding the modified nano zirconia slurry-Zr-01 nano zirconia slurry, electromagnetically stirring for 1.0 hour, and then ultrasonically dispersing for 15 minutes to obtain a nano zirconia modified epoxy organosilicon polymer; cooling to room temperature of 20 ℃, and then adding asbestos fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 55 deg.C for 1.0 hr, and stirring and dispersing at 350rpm for 25 min with high speed stirrer to obtain component A; and adding 650 parts of a polyamide curing agent as the component B, uniformly mixing, and curing at 50 ℃ for 36 hours to obtain the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating. The embodiment can adopt high-pressure airless spraying construction, has strong bonding force with metal base materials, resists high temperature of 250 ℃, has good heat-insulating property and resists corrosion.
Example 3
In this embodiment, the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating in this embodiment is composed of two components, namely a component a and a component b, and the specific formula is as follows in parts by weight:
1. a component A:
zr-01 nano zirconia slurry: 3.5 parts; titanate modified epoxy silicone resin: 30.0 parts; w991-6 polysiloxane Polymer: 8.5 parts; 80-mesh asbestos fiber powder: 6.0 parts of (B); 200-mesh hollow glass beads: 20.0 parts of (B); 60-mesh hollow glass beads: 17.0 parts; 600-mesh silicon carbide: 7.0 parts; non-floating aluminum powder: 4.3 parts of a mixture; fumed silica: 1.7 parts; silane coupling agent: 2.0 parts of (B);
2. b, component B: 650 Polyamide curing agent: 20 parts of (1);
a component A: the weight ratio of the component B is 100: 20.
the preparation method comprises the following steps: coupling agent of titanate-isopropyl dioleic acid acyloxy (dioctyl phosphate acyloxy) titanate and epoxy organic silicon resin-SH-023-7 epoxy organic silicon resin according to the weight ratio of 3.0: 100, heating at 100 ℃ for 1.5 hours, and vacuumizing for 20 minutes to obtain titanate modified epoxy organic silicon resin; then adding polysiloxane polymer-W991-6 organic silicon resin, heating and keeping at 115 ℃ for 1.5 hours, and vacuumizing for 20 minutes; reducing the temperature to 33 ℃, adding the modified nano zirconia slurry-Zr-01 nano zirconia slurry, stirring for 1.5 hours, and then performing ultrasonic dispersion for 12 minutes to obtain a nano zirconia modified epoxy organosilicon polymer; cooling to 23 ℃ at room temperature, and then adding asbestos fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 50 deg.C for 1.0 hr, and stirring and dispersing at 500rpm for 20 min with high speed stirrer to obtain component A; and adding 650 parts of a polyamide curing agent as the component B, uniformly mixing, and curing at 100 ℃ for 8 hours to obtain the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating. The embodiment can adopt high-pressure airless spraying construction, has strong bonding force with metal base materials, resists high temperature of 260 ℃, has good heat-insulating property and resists corrosion.
Comparative example 1:
the coating consists of a component A and a component B, and the specific formula is as follows according to parts by weight:
a component A: SH-023-7 epoxy silicone resin: 45.0 parts of (B); 80-mesh asbestos fiber powder: 5.0 parts of (B); 200-mesh hollow glass beads: 21.5 parts; 60-mesh hollow glass beads: 15.5 parts; 600-mesh silicon carbide: 7.0 parts; non-floating aluminum powder: 4.0 parts of (B); fumed silica: 1.0 part; silane coupling agent: 1.0 part; the silane coupling agent may be N- (β -aminoethyl) - γ -aminopropylmethyldimethoxysilane.
B, component B: 650 Polyamide curing agent: 15 parts of (1);
a component A: the weight ratio of the component B is 100: 15.
the preparation method comprises the following steps: adding asbestos fiber powder, silicon carbide, hollow glass microspheres, non-floating aluminum powder, fumed silica and a silane coupling agent into SH-023-7 epoxy organic silicon resin at the room temperature of 20 ℃; heating and stirring at 50 deg.C for 1.0 hr, and stirring and dispersing at 400rpm for 20 min with high speed stirrer to obtain component A; and adding 650 polyamide curing agent as component B, uniformly mixing, and curing at 25 ℃ for 72 hours to obtain the coating 1.
Comparative example 2:
the coating consists of a component A and a component B, and the specific formula is as follows according to parts by weight:
a component A: titanate modified epoxy silicone resin: 35.0 parts of (B); german Bick chemical BYK-220S dispersant namely unsaturated polycarboxylic acid ester-polysiloxane copolymer: 10.0 parts; 80-mesh asbestos fiber powder: 5.0 parts of (B); 200-mesh hollow glass beads: 21.5 parts; 60-mesh hollow glass beads: 15.5 parts; 600-mesh silicon carbide: 7.0 parts; non-floating aluminum powder: 4.0 parts of (B); fumed silica: 1.0 part; silane coupling agent: 1.0 part; the silane coupling agent may be N- (β -aminoethyl) - γ -aminopropylmethyldimethoxysilane.
B, component B: 650 Polyamide curing agent: 15 parts of (1);
a component A: the weight ratio of the component B is 100: 15.
the preparation method comprises the following steps: the method comprises the following steps of (1) mixing a titanate coupling agent, namely isopropyl tri (dioctyl pyrophosphate) titanate, and epoxy organic silicon resin, namely HG-43 epoxy organic silicon resin according to the weight ratio of 1.8: 100, heating at 58 ℃ for 1.5 hours, and vacuumizing for 16 minutes to obtain the titanate modified epoxy organic silicon resin. Then adding polysiloxane polymer BYK-220S which is unsaturated polycarboxylic acid ester-polysiloxane copolymer, heating and keeping for 2.0 hours at 110 ℃, and vacuumizing for 30 minutes; cooling to the room temperature of 21 ℃, and then adding asbestos fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 50 deg.C for 1.0 hr, and stirring and dispersing at 400rpm for 20 min with high speed stirrer to obtain component A; and adding 650 polyamide curing agent as component B, uniformly mixing, and curing at 25 ℃ for 72 hours to obtain the coating 2.
Comparative example 3:
the coating consists of a component A and a component B, and the specific formula is as follows according to parts by weight:
a component A: SH-023-7 epoxy silicone resin: 35.0 parts of (B); w991-6 polysiloxane Polymer: 10.0 parts; 80-mesh asbestos fiber powder: 5.0 parts of (B); 200-mesh hollow glass beads: 21.5 parts; 60-mesh hollow glass beads: 15.5 parts; 600-mesh silicon carbide: 7.0 parts; non-floating aluminum powder: 4.0 parts of (B); fumed silica: 1.0 part; silane coupling agent: 1.0 part; the silane coupling agent may be N- (β -aminoethyl) - γ -aminopropylmethyldimethoxysilane.
B, component B: 650 Polyamide curing agent: 15 parts of (1);
a component A: the weight ratio of the component B is 100: 15.
the preparation method comprises the following steps: adding polysiloxane polymer-W991-6 organic silicon resin into SH-023-7 epoxy organic silicon resin, heating and keeping for 2.0 hours at 110 ℃, and vacuumizing for 30 minutes; cooling to room temperature of 22 ℃, and then adding asbestos fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 50 deg.C for 1.0 hr, and stirring and dispersing at 400rpm for 20 min with high speed stirrer to obtain component A; and adding 650 polyamide curing agent as component B, uniformly mixing, and curing at 25 ℃ for 72 hours to obtain the coating 3.
Comparative example 4:
the coating consists of a component A and a component B, and the specific formula is as follows according to parts by weight:
a component A: titanate modified epoxy silicone resin: 35.0 parts of (B); w991-6 polysiloxane Polymer: 10.0 parts; 80-mesh asbestos fiber powder: 5.0 parts of (B); 200-mesh hollow glass beads: 21.5 parts; 60-mesh hollow glass beads: 15.5 parts; 600-mesh silicon carbide: 7.0 parts; non-floating aluminum powder: 4.0 parts of (B); fumed silica: 1.0 part; silane coupling agent: 1.0 part; the silane coupling agent may be N- (β -aminoethyl) - γ -aminopropylmethyldimethoxysilane.
B, component B: 650 Polyamide curing agent: 15 parts of (1);
a component A: the weight ratio of the component B is 100: 15.
the preparation method comprises the following steps: the method comprises the following steps of (1) mixing a titanate coupling agent, namely isopropyl tri (dioctyl pyrophosphate) titanate, and epoxy organic silicon resin, namely HG-43 epoxy organic silicon resin according to the weight ratio of 1.8: 100, heating at 58 ℃ for 1.5 hours, and vacuumizing for 16 minutes to obtain the titanate modified epoxy organic silicon resin. Then adding polysiloxane polymer-W991-6 organic silicon resin, heating and keeping for 2.0 hours at 110 ℃, and vacuumizing for 30 minutes; cooling to room temperature of 15 ℃, and then adding asbestos fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 50 deg.C for 1.0 hr, and stirring and dispersing at 400rpm for 20 min with high speed stirrer to obtain component A; and adding 650 polyamide curing agent as component B, mixing uniformly, and curing at 25 deg.C for 72 hr to obtain coating 4.
Test and test:
1. neutral salt spray test:
the coating of comparative example 1 is subjected to a heat insulation performance test after 2000h of a neutral salt spray test, the 3mm heat insulation coating can cool the back of a 200 ℃ steel plate to 139 ℃, and the back of a coated steel plate which is not subjected to the salt spray test is cooled to 117 ℃; the heat insulation performance is obviously reduced.
The coating of comparative example 2 is subjected to a heat insulation performance test after 2000h of a neutral salt spray test, the 3mm heat insulation coating can cool the back of a 200 ℃ steel plate to 136 ℃, and the back of a coated steel plate which is not subjected to the salt spray test is cooled to 115 ℃; the heat insulation performance is obviously reduced.
The coating of the comparative example 3 is subjected to a heat insulation performance test after 2000h of a neutral salt spray test, the 3mm heat insulation coating can cool the back of a 200 ℃ steel plate to 144 ℃, and the back of a coated steel plate which is not subjected to the salt spray test is cooled to 118 ℃; the heat insulation performance is obviously reduced.
The coating of comparative example 4 is subjected to a heat insulation performance test after 2000h of a neutral salt spray test, and the 3mm heat insulation coating can cool the back of a 200 ℃ steel plate to 143 ℃, and cool the back of a coated steel plate which is not subjected to the salt spray test to 116 ℃; the heat insulation performance is obviously reduced.
The heat insulation performance test is carried out on the heat insulation coating of the embodiment 1 after 2000h of the neutral salt spray test, the back surface of a 200 ℃ steel plate can be cooled to 118 ℃ by 3mm of the heat insulation coating, and the back surface of a coated steel plate which is not subjected to the salt spray test can be cooled to 116 ℃; the thermal insulation properties are substantially unchanged.
The heat insulation performance test is carried out on the heat insulation coating of the embodiment 2 after 2000h of the neutral salt spray test, the back surface of a 200 ℃ steel plate can be cooled to 117 ℃ by 3mm of the heat insulation coating, and the back surface of a coated steel plate which is not subjected to the salt spray test can be cooled to 114 ℃; the thermal insulation properties are substantially unchanged.
The heat insulation performance test is carried out on the heat insulation coating of the embodiment 3 after 2000h of the neutral salt spray test, the heat insulation coating of 3mm can cool the back of a steel plate at 200 ℃ to 125 ℃, and the back of a coated steel plate which is not subjected to the salt spray test can cool to 120 ℃; the thermal insulation properties are substantially unchanged.
2. Saline soak test:
the coating of comparative example 1 is subjected to a heat insulation performance test after 720 hours of a 50 ℃ and 3% salt water soaking test, the 3mm heat insulation coating can cool the back of a steel plate at 250 ℃ to 170 ℃, and the back of a coated steel plate which is not subjected to the salt water soaking test is cooled to 144 ℃; the heat insulation performance is obviously reduced.
The coating of the comparative example 2 is subjected to a heat insulation performance test after 720h of a 3% salt water soaking test at 50 ℃, and the 3mm heat insulation coating can cool the back of a steel plate at 250 ℃ to 173 ℃, and cool the back of a coated steel plate which is not subjected to the salt water soaking test to 146 ℃; the heat insulation performance is obviously reduced.
The coating of comparative example 3 is subjected to a heat insulation performance test after 720h of a 3% saline soaking test at 50 ℃, and the 3mm heat insulation coating can cool the back of a steel plate at 250 ℃ to 179 ℃ and cool the back of a coated steel plate which is not subjected to the saline soaking test to 145 ℃; the heat insulation performance is obviously reduced.
The coating of comparative example 4 is subjected to a heat insulation performance test after 720h of a 3% salt water soaking test at 50 ℃, and the 3mm heat insulation coating can cool the back of a steel plate at 250 ℃ to 177 ℃, and cool the back of a coated steel plate which is not subjected to the salt water soaking test to 147 ℃; the heat insulation performance is obviously reduced.
The thermal insulation coating of example 1 is tested for thermal insulation performance after 720h of 3% salt water soaking test at 50 ℃, and the 3mm thermal insulation coating can cool the back of a steel plate at 250 ℃ to 149 ℃, and the back of a coated steel plate which is not subjected to the salt water soaking test to 145 ℃.
The thermal insulation coating of example 2 is tested for thermal insulation performance after 720h of a 3% salt water soaking test at 50 ℃, and the 3mm thermal insulation coating can cool the back of a steel plate at 250 ℃ to 144 ℃, and the back of a coated steel plate which is not subjected to the salt water soaking test is cooled to 143 ℃.
The thermal insulation coating of example 3 is tested for thermal insulation performance after 720h of 3% salt water soaking test at 50 ℃, and the 3mm thermal insulation coating can cool the back of a steel plate at 250 ℃ to 153 ℃ and cool the back of a coated steel plate which is not subjected to the salt water soaking test to 146 ℃.
3. Acid solution soaking test:
the coating of comparative example 1 is soaked in 1% sulfuric acid solution at 40 ℃ for 720h and then is subjected to heat insulation performance test, the 4mm heat insulation coating can cool the back of a 260 ℃ steel plate to 174 ℃, and the back of a coated steel plate which is not subjected to the sulfuric acid solution soaking test is cooled to 136 ℃; the heat insulation performance is obviously reduced.
The coating of the comparative example 2 is soaked in 1 percent sulfuric acid solution at 40 ℃ for 720h and then is subjected to heat insulation performance test, the 4mm heat insulation coating can cool the back of a 260 ℃ steel plate to 169 ℃, and the back of a coated steel plate which is not subjected to the sulfuric acid solution soaking test is cooled to 135 ℃; the heat insulation performance is obviously reduced.
The coating of the comparative example 3 is soaked in 1 percent sulfuric acid solution at 40 ℃ for 720h and then is subjected to heat insulation performance test, the 4mm heat insulation coating can cool the back of a 260 ℃ steel plate to 178 ℃, and the back of a coated steel plate which is not subjected to the sulfuric acid solution soaking test is cooled to 138 ℃; the heat insulation performance is obviously reduced.
The coating of comparative example 4 is soaked in 1% sulfuric acid solution at 40 ℃ for 720h and then is tested for heat insulation performance, the 4mm heat insulation coating can cool the back of a 260 ℃ steel plate to 175 ℃, and the back of a coated steel plate which is not subjected to the sulfuric acid solution soaking test is cooled to 134 ℃; the heat insulation performance is obviously reduced.
The thermal insulation coating of example 1 is soaked in 1% sulfuric acid solution at 40 ℃ for 720h and then tested for thermal insulation performance, the 4mm thermal insulation coating can cool the back of a 260 ℃ steel plate to 144 ℃, and the back of a coated steel plate which is not tested for the sulfuric acid solution can cool to 134 ℃.
The thermal insulation coating of example 2 is soaked in 1% sulfuric acid solution at 40 ℃ for 720h and then tested for thermal insulation performance, the 4mm thermal insulation coating can cool the back of a 260 ℃ steel plate to 139 ℃, and the back of a coated steel plate which is not tested for the sulfuric acid solution is cooled to 133 ℃.
The thermal insulation coating of example 3 is soaked in 1% sulfuric acid solution at 40 ℃ for 720h and then tested for thermal insulation performance, the 4mm thermal insulation coating can cool the back of a 260 ℃ steel plate to 136 ℃, and the back of a coated steel plate which is not tested for the sulfuric acid solution can cool to 131 ℃.
The embodiment of the present application may also be as follows, and the modified nano zirconia slurry in embodiments 4 to 8 is respectively according to the chinese patent invention: "patent number: nanometer zirconia compositions prepared in ZL 02109457.8, example 2, example 4, example 5, example 6, example 7.
Example 4:
a nanometer zirconia modified epoxy organosilicon-polysiloxane heat insulation corrosion resistant coating comprises the following raw materials in parts by weight,
(1) a component A:
modified nano zirconia slurry: 1.5 parts; titanate modified epoxy silicone resin: 30.0 parts; 8.0 parts of RSN-6018 silicone resin; 60-mesh asbestos fiber powder: 3.0 parts of (B); 300-mesh hollow glass beads: 20.0 parts of (B); 50-mesh hollow glass beads: 13.0 parts; 400-mesh silicon carbide: 6.0 parts of (B); non-floating aluminum powder: 4.0 parts of (B); fumed silica: 1.0 part; silane coupling agent: 1.0 part; the silane coupling agent is N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxysilane.
(2) Component B
650 Polyamide curing agent: 8.75 parts;
the component A comprises the following components in percentage by weight: component b = 100: 10.
the preparation method of the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following steps:
(1) preparation of the component A:
the titanate coupling agent and the epoxy organic silicon resin are mixed according to the weight ratio of 1.2: 100, heating at 50 ℃ for 1.0 hour, and vacuumizing for 15 minutes to obtain titanate modified epoxy organic silicon resin; then adding RSN-6018 organic silicon resin, heating at 110 ℃ for 1.5 hours, and vacuumizing for 15 minutes; reducing the temperature to 30 ℃, adding the modified nano zirconia slurry, electromagnetically stirring for 1.0 hour, and then ultrasonically dispersing for 10 minutes to obtain a nano zirconia modified epoxy organic silicon polymer; cooling to 18 ℃ at room temperature, and then adding asbestos fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 40 deg.C for 0.5 hr, and stirring and dispersing at 300rpm for 20 min with high speed stirrer to obtain component A;
(2) the nanometer zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following components in percentage by weight:
a component A: the weight ratio of the component B is 100: 10; and mixing the component A and the component B, and curing for 96 hours at 15 ℃ to prepare the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating.
Example 5:
a nanometer zirconia modified epoxy organosilicon-polysiloxane heat insulation corrosion resistant coating comprises the following raw materials in parts by weight,
(1) a component A:
modified nano zirconia slurry: 3.5 parts; titanate modified epoxy silicone resin: 34.0 parts of (A); 11.0 parts of RSN-0805 organic silicon resin; 100-mesh asbestos fiber powder: 6.0 parts of (B); 280-mesh hollow glass beads: 23.0 parts; 100-mesh hollow glass beads: 18.0 parts of (B); 800-mesh silicon carbide: 9.0 parts of (B); non-floating aluminum powder: 5.0 parts of (B); fumed silica: 1.5 parts; silane coupling agent: 2.5 parts; the silane coupling agent may be N- (β -aminoethyl) - γ -aminopropylmethyldimethoxysilane.
(2) Component B
650 Polyamide curing agent: 26.105 parts of a binder;
the component A comprises the following components in percentage by weight: component b = 100: 23.
the preparation method of the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following steps:
(1) preparation of the component A:
the titanate coupling agent and the epoxy organic silicon resin are mixed according to the weight ratio of 2.0: 100, heating at 100 ℃ for 2.5 hours, and vacuumizing for 20 minutes to obtain titanate modified epoxy organic silicon resin; then adding RSN-0805 organic silicon resin, heating at 130 ℃ for 2.5 hours, and vacuumizing for 30 minutes; reducing the temperature to 50 ℃, adding the modified nano zirconia slurry, electromagnetically stirring for 1.5 hours, and then ultrasonically dispersing for 15 minutes to obtain a nano zirconia modified epoxy organic silicon polymer; cooling to room temperature of 10 ℃, and then adding asbestos fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 60 deg.C for 1.0 hr, and stirring and dispersing at 500rpm for 30 min with high speed stirrer to obtain component A;
(2) the nanometer zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following components in percentage by weight:
a component A: the weight ratio of the component B is 100: 23; and mixing the component A and the component B, and curing for 24 hours at 100 ℃ to prepare the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating.
Example 6:
a nanometer zirconia modified epoxy organosilicon-polysiloxane heat insulation corrosion resistant coating comprises the following raw materials in parts by weight,
(1) a component A:
modified nano zirconia slurry: 1.6 parts; titanate modified epoxy silicone resin: 33.0 parts of (B); 8.5 parts of RSN-6018 silicone resin; 60-mesh glass fiber powder: 5.5 parts; 280-mesh hollow glass beads: 20.5 parts; 100-mesh hollow glass beads: 17.5 parts; 500-mesh silicon carbide: 7.0 parts; non-floating aluminum powder: 4.8 parts; fumed silica: 1.2 parts; silane coupling agent: 2.2 parts of; the silane coupling agent may be gamma-methacryloxypropyltrimethoxysilane.
(2) Component B
650 Polyamide curing agent: 20.36 parts of;
the component A comprises the following components in percentage by weight: component b = 100: 20.
the preparation method of the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following steps:
(1) preparation of the component A:
the titanate coupling agent and the epoxy organic silicon resin are mixed according to the weight ratio of 2.5: 100, heating at 60 ℃ for 1.5 hours, and vacuumizing for 18 minutes to obtain titanate modified epoxy organic silicon resin; then adding RSN-6018 organic silicon resin, heating at 118 ℃ for 2.2 hours, and vacuumizing for 20 minutes; reducing the temperature to 50 ℃, adding the modified nano zirconia slurry, electromagnetically stirring for 1.2 hours, and then ultrasonically dispersing for 14 minutes to obtain a nano zirconia modified epoxy organosilicon polymer; cooling to room temperature of 25 ℃, and then adding asbestos fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 45 deg.C for 0.8 hr, and stirring and dispersing at 400rpm for 22 min with high speed stirrer to obtain component A;
(2) the nanometer zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following components in percentage by weight:
a component A: the weight ratio of the component B is 100: 20; and mixing the component A and the component B, and curing for 35 hours at 25 ℃ to prepare the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating.
Example 7:
a nanometer zirconia modified epoxy organosilicon-polysiloxane heat insulation corrosion resistant coating comprises the following raw materials in parts by weight,
(1) a component A:
modified nano zirconia slurry: 3.3 parts; titanate modified epoxy silicone resin: 31.0 parts; RSN-0805 silicone resin: 10.8 parts; 80-mesh glass fiber powder: 3.6 parts; 260-mesh hollow glass beads: 22.5 parts; 50-mesh hollow glass beads: 14.0 parts of (B); 480-mesh silicon carbide: 8.8 parts; non-floating aluminum powder: 4.5 parts; fumed silica: 0 part of (C); silane coupling agent: 1.7 parts; the silane coupling agent may be N- (β -aminoethyl) - γ -aminopropylmethyldimethoxysilane.
(2) Component B
650 Polyamide curing agent: 15.18 parts;
the component A comprises the following components in percentage by weight: component b = 100: 15.
the preparation method of the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following steps:
(1) preparation of the component A:
titanate coupling agent and epoxy organic silicon resin are mixed according to the weight ratio of 3.0: 100, heating at 90 ℃ for 1.2 hours, and vacuumizing for 17 minutes to obtain titanate modified epoxy organic silicon resin; then adding RSN-0805 organic silicon resin, heating at 122 ℃ for 1.5 hours, and vacuumizing for 28 minutes; reducing the temperature to 35 ℃, adding the modified nano zirconia slurry, electromagnetically stirring for 1.3 hours, and then ultrasonically dispersing for 12 minutes to obtain a nano zirconia modified epoxy organic silicon polymer; cooling to 16 ℃ at room temperature, and then adding asbestos fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 42 deg.C for 0.6 hr, and stirring and dispersing at 400rpm for 25 min with high speed stirrer to obtain component A;
(2) the nanometer zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following components in percentage by weight:
a component A: the weight ratio of the component B is 100: 15; and mixing the component A and the component B, and curing for 28 hours at 70 ℃ to prepare the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating.
Example 8:
a nanometer zirconia modified epoxy organosilicon-polysiloxane heat insulation corrosion resistant coating comprises the following raw materials in parts by weight,
(1) a component A:
modified nano zirconia slurry: 2.5 parts; titanate modified epoxy silicone resin: 32.0 parts of (B); w991-6 polysiloxane Polymer: 9.5 parts; 4.5 parts of 40-mesh glass fiber powder; 260-mesh hollow glass beads: 21.0 part; 100-mesh hollow glass beads: 15.0 parts of (B); 800-mesh silicon carbide: 7.5 parts; non-floating aluminum powder: 4.5 parts; fumed silica: 1.4 parts; silane coupling agent: 2.1 parts; the silane coupling agent may be gamma-methacryloxypropyltrimethoxysilane.
(2) Component B
650 Polyamide curing agent: 13 parts;
the component A comprises the following components in percentage by weight: component b = 100: 13.
the preparation method of the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following steps:
(1) preparation of the component A:
titanate coupling agent and epoxy organic silicon resin are mixed according to the weight ratio of 3.5: 100, heating at 75 ℃ for 2.0 hours, and vacuumizing for 19 minutes to obtain titanate modified epoxy organic silicon resin; then adding polysiloxane polymer, heating and keeping for 2.3 hours at 125 ℃, and vacuumizing for 18 minutes; reducing the temperature to 40 ℃, adding the modified nano zirconia slurry, electromagnetically stirring for 1.1 hours, and then ultrasonically dispersing for 12 minutes to obtain a nano zirconia modified epoxy organosilicon polymer; cooling to 23 ℃ at room temperature, and then adding asbestos fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring for 0.7 hour at 40-60 ℃, and then stirring and dispersing for 22 minutes at 300rpm by using a high-speed stirrer to prepare a component A;
(2) the nanometer zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following components in percentage by weight:
a component A: the weight ratio of the component B is 100: 13; and mixing the component A and the component B, and curing for 78 hours at 65 ℃ to prepare the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.

Claims (6)

1. A nanometer zirconia modified epoxy organosilicon-polysiloxane heat insulation corrosion resistant coating is characterized in that: comprises the following raw materials in parts by weight,
(1) a component A:
modified nano zirconia slurry: 1.5-3.5 parts; epoxy silicone resin: 30.0-34.0 parts; a polysiloxane polymer having a weight average molecular weight in the range of 2400 to 6800: 8.0-11.0 parts; asbestos fiber powder or/and glass fiber powder: 3.0-6.0 parts; 33.0-41.0 parts of hollow glass beads with different particle sizes and used in a matching way between 50 meshes and 300 meshes; 400-800 mesh silicon carbide: 6.0-9.0 parts; non-floating aluminum powder: 4.0-5.0 parts; fumed silica: 0 part or 1.0 to 1.5 parts; silane coupling agent: 1.0-2.5 parts;
preparation of the component A:
adding a polysiloxane polymer into epoxy organic silicon resin, heating and keeping for 1.5-2.5 hours at 110-130 ℃, and vacuumizing for 15-30 minutes; reducing the temperature to 30-50 ℃, adding the modified nano zirconia slurry, electromagnetically stirring for 1.0-1.5 hours, and then ultrasonically dispersing for 10-15 minutes to obtain a nano zirconia modified epoxy organosilicon polymer; cooling to room temperature, and adding asbestos fiber powder or/and glass fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 40-60 ℃ for 0.5-1.0 h, and then stirring and dispersing for 20-30 min at 300-500 rpm by using a high-speed stirrer to prepare a component A; the epoxy organic silicon resin is titanate modified epoxy organic silicon resin, and the preparation of the titanate modified epoxy organic silicon resin comprises the following steps: mixing a titanate coupling agent and epoxy organic silicon resin, heating at 50-100 ℃ for 1.0-2.5 hours, vacuumizing for 15-20 minutes to obtain the titanate modified epoxy organic silicon resin, wherein the weight ratio of the titanate coupling agent to the epoxy organic silicon resin is (0.8-4.0): 100, respectively;
(2) b, component B: an amine-based curing agent;
the component A comprises the following components in percentage by weight: component b = 100: (10-23).
2. The nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating as claimed in claim 1, wherein: the hollow glass beads matched with 50-300 meshes in different particle sizes are as follows: 200-mesh hollow glass beads: 20.0-23.0 parts; 60-mesh hollow glass beads: 13.0 to 18.0 parts.
3. The nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating as claimed in claim 1, wherein: the amine curing agent is polyamide curing agent or alicyclic amine curing agent, and the polyamide curing agent is 650 polyamide curing agent.
4. The nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating as claimed in claim 1, wherein: the polysiloxane polymer with the weight-average molecular weight ranging from 2400 to 6800 is W991-6 polysiloxane polymer, RSN-6018 organic silicon resin or RSN-0805 organic silicon resin.
5. The preparation method of the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating according to claim 1, characterized in that: the method comprises the following steps:
(1) preparation of the component A:
adding a polysiloxane polymer into epoxy organic silicon resin, heating and keeping for 1.5-2.5 hours at 110-130 ℃, and vacuumizing for 15-30 minutes; reducing the temperature to 30-50 ℃, adding the modified nano zirconia slurry, electromagnetically stirring for 1.0-1.5 hours, and then ultrasonically dispersing for 10-15 minutes to obtain a nano zirconia modified epoxy organosilicon polymer; cooling to room temperature, and adding asbestos fiber powder or/and glass fiber powder, silicon carbide, hollow glass beads, non-floating aluminum powder, fumed silica and a silane coupling agent; heating and stirring at 40-60 ℃ for 0.5-1.0 h, and then stirring and dispersing for 20-30 min at 300-500 rpm by using a high-speed stirrer to prepare a component A;
(2) the preparation of the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating comprises the following steps:
and the component B is an amine curing agent, and the component A and the component B are mixed and cured to prepare the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating.
6. The preparation method of the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating according to claim 5, characterized in that: in the step (2), the amine curing agent is 650 polyamide curing agent, and the component A comprises: the weight ratio of the component B is 100: 15-23; and mixing the component A and the component B, and curing for 24-96 hours at 50-100 ℃ to obtain the nano zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating.
CN202010301291.3A 2020-04-16 2020-04-16 Nano-zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating and preparation method thereof Active CN111518473B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010301291.3A CN111518473B (en) 2020-04-16 2020-04-16 Nano-zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010301291.3A CN111518473B (en) 2020-04-16 2020-04-16 Nano-zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating and preparation method thereof

Publications (2)

Publication Number Publication Date
CN111518473A CN111518473A (en) 2020-08-11
CN111518473B true CN111518473B (en) 2021-11-23

Family

ID=71912033

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010301291.3A Active CN111518473B (en) 2020-04-16 2020-04-16 Nano-zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating and preparation method thereof

Country Status (1)

Country Link
CN (1) CN111518473B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113563694A (en) * 2021-08-13 2021-10-29 南通东泰电工器材有限公司 Zirconia/epoxy resin composite material pipe
CN115925438B (en) * 2022-11-02 2023-10-13 南大恩洁优环境技术(江苏)股份公司 Preparation method of high-temperature-resistant corrosion-resistant composite coating for RTO
CN116285470B (en) * 2022-11-22 2023-09-05 浙江金龙电机股份有限公司 High-temperature reflective heat-insulating composite coating, preparation method thereof and application thereof in high-temperature-resistant motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106590339A (en) * 2016-12-12 2017-04-26 四川煜天石油机械设备有限公司 Wear-resisting nano epoxy composite coating and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106590339A (en) * 2016-12-12 2017-04-26 四川煜天石油机械设备有限公司 Wear-resisting nano epoxy composite coating and preparation method thereof

Also Published As

Publication number Publication date
CN111518473A (en) 2020-08-11

Similar Documents

Publication Publication Date Title
CN111518473B (en) Nano-zirconia modified epoxy organosilicon-polysiloxane heat-insulating corrosion-resistant coating and preparation method thereof
CN101440268B (en) Low temperature curing high temperature resistant inorganic / organic hybridization epoxy adhesive and preparation thereof
CN100582171C (en) Non expansion type steel structure fire retarding anticorrosion paint
CN111763439B (en) Ultrathin fireproof coating for steel structure and application thereof
CN113265185B (en) Self-repairing graphene composite titanium nano heavy-duty anticorrosive material and preparation and use methods thereof
AU2021402785A1 (en) Polyurethane modified graphene microsheet and preparation method therefor
CN112358791A (en) Double-component epoxy micaceous iron intermediate paint and preparation method thereof
CN110951287B (en) High-temperature-resistant ceramic coating and preparation method thereof
CN112011250A (en) Low-temperature fast-curing environment-friendly insulating coating for non-oriented electrical steel
CN113278312B (en) Organic-inorganic hybrid water-based emulsion, preparation method thereof and super-anticorrosive coating
CN110951354B (en) Epoxy resin-based intumescent steel structure fireproof coating for non-mechanical construction and preparation method thereof
CN108034288A (en) A kind of refrigeration system compressor
CN104371460A (en) Zinc surface repairing paint for power transmission towers and preparing method thereof
CN102453430A (en) Preparation method for nano-ZrO2/organic silicon metal anti-corrosion coating
CN114806691B (en) Room temperature curing dry film lubricant and preparation method and application thereof
CN111087880A (en) Wear-resistant anti-scratch coating and preparation method thereof
CN110591500A (en) Hyperbranched polysiloxane-containing antifriction, antiwear and flame-retardant epoxy bonding solid lubricating material and preparation and use methods thereof
CN115232492A (en) Water-based phosphate ceramic coating and preparation method thereof
CN111073506B (en) Inorganic silicon-organic silicon copolymerized temperature-resistant heat-insulating coating and preparation and use method thereof
CN114196291A (en) Low-surface-treatment fireproof coating and preparation method thereof
CN112680011A (en) Preparation method of organic-inorganic hybrid anticorrosive paint
CN115141544B (en) High-temperature-resistant acid-corrosion-resistant coating and enameled wire
CN117126583A (en) Preparation method of graphene modified epoxy zinc-rich coating
CN117070126B (en) Corrosion-resistant water-based fireproof paint and preparation method thereof
CN115558320B (en) Low-temperature curing anti-corrosion composite coating suitable for heavy corrosion prevention of spring piece and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant