CN109608977B - Graphene powder coating for structural component in motor train unit and preparation method thereof - Google Patents
Graphene powder coating for structural component in motor train unit and preparation method thereof Download PDFInfo
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- CN109608977B CN109608977B CN201811531797.2A CN201811531797A CN109608977B CN 109608977 B CN109608977 B CN 109608977B CN 201811531797 A CN201811531797 A CN 201811531797A CN 109608977 B CN109608977 B CN 109608977B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D155/00—Coating compositions based on homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C09D123/00 - C09D153/00
- C09D155/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
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- 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
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
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- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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Abstract
The invention provides a graphene powder coating for a structural component in a motor train unit, which comprises the following components in parts by weight: 100 parts of ABS resin, 0.2-3 parts of graphene, 0.01-0.1 part of graphene oxide, 0.01-0.5 part of silane coupling agent, 0.01-0.2 part of antimony trioxide and 0.01-0.2 part of pigment.
Description
Technical Field
The invention relates to graphene powder coating for an in-train structural component of a motor train unit.
Background
Along with the improvement of comprehensive technical performance of the high-speed motor train unit, higher requirements are also put forward on the attractiveness, the corrosion resistance, the flame retardance and the environmental protection of the train. The internal structural parts of the high-speed motor train unit mostly adopt chromium-free epoxy primer and polyurethane finish paint. The coating has a plump, flat and smooth surface, but still needs to be improved in corrosion resistance, solvent resistance and flame retardance, and has poor adhesion with a component substrate and short service life.
The statements in the background section are merely prior art as they are known to the inventors and do not, of course, represent prior art in the field.
Disclosure of Invention
Aiming at one or more problems in the prior art, the invention provides a graphene powder coating for an in-train structural component of a motor train unit, which comprises the following components in parts by weight: 100 parts of ABS resin, 0.2-3 parts of graphene, 0.01-0.1 part of graphene oxide, 0.01-0.5 part of silane coupling agent, 0.01-0.2 part of antimony trioxide and 0.01-0.2 part of pigment.
As a preferable scheme, the graphene powder coating for the internal structural component of the motor train unit comprises the following components in parts by weight: 100 parts of ABS resin, 0.5 part of graphene, 0.02 part of graphene oxide, 0.1 part of silane coupling agent, 0.1 part of antimony trioxide and 0.08 part of pigment.
According to one aspect of the invention, the graphene is a graphene sheet, and the sheet diameter D90 of the graphene sheet is 70-100 nm.
The invention also provides a preparation method of the graphene powder coating for the structural component in the motor train unit, which comprises the following steps:
1) mixing, melting and extruding three monomers of acrylonitrile, 1, 3-butadiene and styrene for polymerizing the ABS resin according to the formula amount, an impact modifier, a lubricant and graphene oxide according to the formula amount to obtain the ABS resin polymerized with the graphene oxide in situ;
2) melting and mixing the ABS resin which is obtained in the step 1) and is polymerized with the graphene oxide in situ, the graphene, the silane coupling agent, the antimony trioxide and the pigment in proportion, and extruding to prepare powder.
According to one aspect of the present invention, in the step 1), the mass ratio of the acrylonitrile, the 1, 3-butadiene and the styrene is 1: (1.5-2): (0.5-1).
According to one aspect of the present invention, the mass ratio of acrylonitrile, 1, 3-butadiene and styrene is 1: 1.8: 0.6.
according to one aspect of the invention, in step 1), the acrylonitrile: impact modifier: the mass ratio of the lubricant is 1: (0.01-0.2): (0.01-0.05).
According to one aspect of the invention, the acrylonitrile: impact modifier: the mass ratio of the lubricant is 1: 0.1: 0.03.
according to an aspect of the present invention, in the step 1), the melting is specifically: temperature in the first zone: 150 ℃ to 220 ℃; temperature in the second zone: 160 ℃ and 260 ℃; three-zone temperature: 180 ℃ and 260 ℃; temperature in the fourth zone: 180 ℃ and 260 ℃; temperature in the fifth zone: 180 ℃ and 260 ℃; the rotation speed of the screw is 100-500r/mi n.
According to an aspect of the present invention, in the step 2), the melting is specifically: temperature in the first zone: 150 ℃ to 220 ℃; temperature in the second zone: 160 ℃ and 260 ℃; three-zone temperature: 180 ℃ and 260 ℃; temperature in the fourth zone: 180 ℃ and 260 ℃; temperature in the fifth zone: 180 ℃ and 260 ℃; the rotation speed of the screw is 100-500r/mi n.
ABS resin is the polymer with the largest output and the most extensive application at present, organically integrates various performances of PS, SAN and BS, and has excellent mechanical properties of toughness, hardness and rigidity balance. ABS is a terpolymer of acrylonitrile, butadiene and styrene, A represents acrylonitrile, B represents butadiene and S represents styrene. It has strong acid, alkali and salt corrosion resistance and can resist the dissolution of organic solvent to a certain extent. Graphene has good electrical conductivity, heat dissipation and good mechanical properties. However, graphene is difficult to disperse in ABS resin. According to the invention, the graphene nanosheet is grafted in the ABS resin by an in-situ polymerization mode and the ratio of the three ABS monomers is adjusted. And the binding force between the ABS resin and the internal structural member of the motor train unit is stronger, and the adhesive force of the coating is improved. Tests on the aspect of flame retardance show that under the same condition of burning graphene, the traditional powder coating is burnt in a foaming manner within 40-60 seconds, the graphene powder coating is burnt in a foaming manner within 240 seconds, and the flame retardant property is obviously improved, particularly referring to the comparison of flame retardant experiments in figures 1-2. In the aspects of corrosion resistance, solvent resistance and the like, the graphene powder coating also shows excellent performance. See table 1 for details of test data. Meanwhile, the graphene powder coating does not need the traditional method of 'primer and finish paint', and reduces the production process cost of the structural member.
Table 1:
drawings
FIG. 1 is an appearance of a structural member of a motor train unit that foams and burns after 240 seconds under a burning condition by using the graphene powder coating;
FIG. 2 is the appearance of a structural member of a motor train unit that burns foamy after 40 seconds under the burning conditions using a conventional powder coating.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.
Example 1:
a graphene powder coating for a structural component in a motor train unit comprises the following components in parts by weight: 100 parts of ABS resin, 0.5 part of graphene, 0.02 part of graphene oxide, 0.1 part of silane coupling agent, 0.1 part of antimony trioxide and 0.08 part of pigment. The graphene is a graphene sheet, and the sheet diameter D90 of the graphene sheet is 70-100 nm.
The preparation method of the graphene powder coating for the structural component in the motor train unit comprises the following steps:
1) mixing, melting and extruding three monomers of acrylonitrile, 1, 3-butadiene and styrene for polymerizing the ABS resin according to the formula amount, an impact modifier, a lubricant and graphene oxide according to the formula amount to obtain the ABS resin polymerized with the graphene oxide in situ;
2) melting and mixing the ABS resin which is obtained in the step 1) and is polymerized with the graphene oxide in situ, the graphene, the silane coupling agent, the antimony trioxide and the pigment in proportion, and extruding to prepare powder.
In the step 1), the mass ratio of acrylonitrile to 1, 3-butadiene to styrene is 1: 1.8: 0.6, the acrylonitrile: impact modifier: the mass ratio of the lubricant is 1: 0.1: 0.03.
in the step 1), the melting specifically comprises: temperature in the first zone: 150 ℃ to 220 ℃; temperature in the second zone: 160 ℃ and 260 ℃; three-zone temperature: 180 ℃ and 260 ℃; temperature in the fourth zone: 180 ℃ and 260 ℃; temperature in the fifth zone: 180 ℃ and 260 ℃; the rotating speed of the screw is 100-500 r/min.
In the step 2), the melting specifically comprises: temperature in the first zone: 150 ℃ to 220 ℃; temperature in the second zone: 160 ℃ and 260 ℃; three-zone temperature: 180 ℃ and 260 ℃; temperature in the fourth zone: 180 ℃ and 260 ℃; temperature in the fifth zone: 180 ℃ and 260 ℃; the rotating speed of the screw is 100-500 r/min.
Example 2:
a graphene powder coating for a structural component in a motor train unit comprises the following components in parts by weight: 100 parts of ABS resin, 0.2 part of graphene, 0.01-0.1 part of graphene oxide, 0.01 part of silane coupling agent, 0.2 part of antimony trioxide and 0.01 part of pigment. The graphene is a graphene sheet, and the sheet diameter D90 of the graphene sheet is 70-100 nm.
The preparation method of the graphene powder coating for the structural component in the motor train unit comprises the following steps:
1) mixing, melting and extruding three monomers of acrylonitrile, 1, 3-butadiene and styrene for polymerizing the ABS resin according to the formula amount, an impact modifier, a lubricant and graphene oxide according to the formula amount to obtain the ABS resin polymerized with the graphene oxide in situ;
2) melting and mixing the ABS resin which is obtained in the step 1) and is polymerized with the graphene oxide in situ, the graphene, the silane coupling agent, the antimony trioxide and the pigment in proportion, and extruding to prepare powder.
In the step 1), the mass ratio of acrylonitrile to 1, 3-butadiene to styrene is 1: 1.5: 1, the acrylonitrile: impact modifier: the mass ratio of the lubricant is 1: 0.2: 0.01.
in the step 1), the melting specifically comprises: temperature in the first zone: 150 ℃ to 220 ℃; temperature in the second zone: 160 ℃ and 260 ℃; three-zone temperature: 180 ℃ and 260 ℃; temperature in the fourth zone: 180 ℃ and 260 ℃; temperature in the fifth zone: 180 ℃ and 260 ℃; the rotating speed of the screw is 100-500 r/min.
In the step 2), the melting specifically comprises: temperature in the first zone: 150 ℃ to 220 ℃; temperature in the second zone: 160 ℃ and 260 ℃; three-zone temperature: 180 ℃ and 260 ℃; temperature in the fourth zone: 180 ℃ and 260 ℃; temperature in the fifth zone: 180 ℃ and 260 ℃; the rotating speed of the screw is 100-500 r/min.
Example 3:
a graphene powder coating for a structural component in a motor train unit comprises the following components in parts by weight: 100 parts of ABS resin, 3 parts of graphene, 0.01 part of graphene oxide, 0.5 part of silane coupling agent, 0.01 part of antimony trioxide and 0.2 part of pigment. The graphene is a graphene sheet, and the sheet diameter D90 of the graphene sheet is 70-100 nm.
The preparation method of the graphene powder coating for the structural component in the motor train unit comprises the following steps:
1) mixing, melting and extruding three monomers of acrylonitrile, 1, 3-butadiene and styrene for polymerizing the ABS resin according to the formula amount, an impact modifier, a lubricant and graphene oxide according to the formula amount to obtain the ABS resin polymerized with the graphene oxide in situ;
2) melting and mixing the ABS resin which is obtained in the step 1) and is polymerized with the graphene oxide in situ, the graphene, the silane coupling agent, the antimony trioxide and the pigment in proportion, and extruding to prepare powder.
In the step 1), the mass ratio of acrylonitrile to 1, 3-butadiene to styrene is 1: 2: 0.5, the acrylonitrile: impact modifier: the mass ratio of the lubricant is 1: 0.01: 0.05.
in the step 1), the melting specifically comprises: temperature in the first zone: 150 ℃ to 220 ℃; temperature in the second zone: 160 ℃ and 260 ℃; three-zone temperature: 180 ℃ and 260 ℃; temperature in the fourth zone: 180 ℃ and 260 ℃; temperature in the fifth zone: 180 ℃ and 260 ℃; the rotating speed of the screw is 100-500 r/min.
In the step 2), the melting specifically comprises: temperature in the first zone: 150 ℃ to 220 ℃; temperature in the second zone: 160 ℃ and 260 ℃; three-zone temperature: 180 ℃ and 260 ℃; temperature in the fourth zone: 180 ℃ and 260 ℃; temperature in the fifth zone: 180 ℃ and 260 ℃; the rotating speed of the screw is 100-500 r/min.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The graphene powder coating for the structural component in the motor train unit is characterized by comprising the following components in parts by weight: 100 parts of ABS resin, 0.2-3 parts of graphene, 0.01-0.1 part of graphene oxide, 0.01-0.5 part of silane coupling agent, 0.01-0.2 part of antimony trioxide and 0.01-0.2 part of pigment;
the preparation method comprises the following steps: 1) mixing, melting and extruding three monomers of acrylonitrile, 1, 3-butadiene and styrene for polymerizing the ABS resin according to the formula amount, an impact modifier, a lubricant and graphene oxide according to the formula amount to obtain the ABS resin polymerized with the graphene oxide in situ;
2) melting and mixing the ABS resin which is obtained in the step 1) and is polymerized with the graphene oxide in situ, the graphene, the silane coupling agent, the antimony trioxide and the pigment in a ratio, and extruding to prepare powder;
in the step 1), the mass ratio of acrylonitrile to 1, 3-butadiene to styrene is 1: (1.5-2): (0.5-1).
2. The graphene powder coating for the in-train structural component of the motor train unit according to claim 1, wherein the composition comprises the following components in parts by weight: 100 parts of ABS resin, 0.5 part of graphene, 0.02 part of graphene oxide, 0.1 part of silane coupling agent, 0.1 part of antimony trioxide and 0.08 part of pigment.
3. The graphene powder coating for the structural component in the motor train unit car as claimed in claim 1 or 2, wherein the graphene is graphene sheets, and the sheet diameter D90 of the graphene sheets is 70-100 nm.
4. The graphene powder coating for the in-train structural component of the motor train unit according to claim 1, wherein in the step 1), the mass ratio of acrylonitrile to 1, 3-butadiene to styrene is 1: 1.8: 0.6.
5. the graphene powder coating for the in-train structural component of the motor train unit according to claim 1, wherein in the step 1), the acrylonitrile: impact modifier: the mass ratio of the lubricant is 1: (0.01-0.2): (0.01-0.05).
6. The graphene powder coating for the in-train structural component of the motor train unit according to claim 5, wherein the acrylonitrile: impact modifier: the mass ratio of the lubricant is 1: 0.1: 0.03.
7. the graphene powder coating for the in-train structural component of the motor train unit according to claim 1, wherein in the step 1), the melting is specifically as follows: temperature in the first zone: 150 ℃ to 220 ℃; temperature in the second zone: 160 ℃ and 260 ℃; three-zone temperature: 180 ℃ and 260 ℃; temperature in the fourth zone: 180 ℃ and 260 ℃; temperature in the fifth zone: 180 ℃ and 260 ℃; the rotating speed of the screw is 100-500 r/min.
8. The graphene powder coating for the in-train structural component of the motor train unit according to claim 1, wherein in the step 2), the melting is specifically as follows: temperature in the first zone: 150 ℃ to 220 ℃; temperature in the second zone: 160 ℃ and 260 ℃; three-zone temperature: 180 ℃ and 260 ℃; temperature in the fourth zone: 180 ℃ and 260 ℃; temperature in the fifth zone: 180 ℃ and 260 ℃; the rotating speed of the screw is 100-500 r/min.
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