CN116179080A - Anti-fouling high-weather-resistance damping coating and preparation method thereof - Google Patents
Anti-fouling high-weather-resistance damping coating and preparation method thereof Download PDFInfo
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- CN116179080A CN116179080A CN202310229865.4A CN202310229865A CN116179080A CN 116179080 A CN116179080 A CN 116179080A CN 202310229865 A CN202310229865 A CN 202310229865A CN 116179080 A CN116179080 A CN 116179080A
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- fouling
- benzoin
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- 238000013016 damping Methods 0.000 title claims abstract description 71
- 238000000576 coating method Methods 0.000 title claims abstract description 45
- 239000011248 coating agent Substances 0.000 title claims abstract description 43
- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000000839 emulsion Substances 0.000 claims abstract description 37
- 229920000642 polymer Polymers 0.000 claims abstract description 34
- 229920002522 Wood fibre Polymers 0.000 claims abstract description 22
- 239000003365 glass fiber Substances 0.000 claims abstract description 22
- 239000002025 wood fiber Substances 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims abstract description 9
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 62
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 30
- 239000003973 paint Substances 0.000 claims description 29
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 20
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 claims description 20
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical group C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 19
- CAQZTSCRGMRSHX-TYYBGVCCSA-N (e)-but-2-enedioic acid;ethanol Chemical compound CCO.OC(=O)\C=C\C(O)=O CAQZTSCRGMRSHX-TYYBGVCCSA-N 0.000 claims description 13
- 239000003999 initiator Substances 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 244000028419 Styrax benzoin Species 0.000 claims description 9
- 235000000126 Styrax benzoin Nutrition 0.000 claims description 9
- 235000008411 Sumatra benzointree Nutrition 0.000 claims description 9
- 229960002130 benzoin Drugs 0.000 claims description 9
- 235000019382 gum benzoic Nutrition 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 4
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 4
- 239000006184 cosolvent Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- MSAHTMIQULFMRG-UHFFFAOYSA-N 1,2-diphenyl-2-propan-2-yloxyethanone Chemical compound C=1C=CC=CC=1C(OC(C)C)C(=O)C1=CC=CC=C1 MSAHTMIQULFMRG-UHFFFAOYSA-N 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 claims description 2
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 claims description 2
- DZZAHLOABNWIFA-UHFFFAOYSA-N 2-butoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OCCCC)C(=O)C1=CC=CC=C1 DZZAHLOABNWIFA-UHFFFAOYSA-N 0.000 claims description 2
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 14
- 239000000853 adhesive Substances 0.000 abstract description 11
- 230000001070 adhesive effect Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 11
- 239000012767 functional filler Substances 0.000 abstract description 9
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 239000012752 auxiliary agent Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 24
- 239000012965 benzophenone Substances 0.000 description 16
- QWQFVUQPHUKAMY-UHFFFAOYSA-N 1,2-diphenyl-2-propoxyethanone Chemical compound C=1C=CC=CC=1C(OCCC)C(=O)C1=CC=CC=C1 QWQFVUQPHUKAMY-UHFFFAOYSA-N 0.000 description 12
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000001530 fumaric acid Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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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
- 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
- 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
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
-
- C—CHEMISTRY; METALLURGY
- 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
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/006—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers provided for in C08G18/00
-
- 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
- C09D7/65—Additives macromolecular
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses an anti-fouling high-weather-resistance damping coating and a preparation method thereof, wherein the anti-fouling high-weather-resistance damping coating comprises the following components in parts by mass: 34-50 parts of fluorocarbon modified silicon polymer emulsion, 2-8 parts of modified TPU, 1-3 parts of wood fiber, 1-3 parts of glass fiber, 0.5-2 parts of silane coupling agent, 20-30 parts of other fillers, 1-5 parts of film forming auxiliary agent and 2-8 parts of solvent. The modified TPU, the wood fiber and the glass fiber are added to serve as functional fillers together, so that the adhesive force and the damping and shock absorbing effects of the coating after film formation can be obviously improved, the problem that the damping and shock absorbing effects are poor after film formation of the fluorocarbon modified silicon polymer emulsion is solved, and the requirement of the coating on damping and shock absorbing is better met.
Description
Technical Field
The invention relates to the field of coatings, in particular to an anti-fouling high-weather-resistance damping coating and a preparation method thereof.
Background
The damping paint is prepared by adding proper amount of filler and auxiliary material into high molecular resin, and can be coated on the surfaces of various metal plate-shaped structures, and has the characteristics of vibration reduction, heat insulation and certain sealing performance. The high polymer material has high mechanical internal consumption performance, and partial mechanical energy is converted into heat energy through viscous internal friction of the material, so that the purposes of vibration reduction and noise elimination are achieved.
The damping paint is mainly used for vibration damping and noise reduction and surface protection of structures such as metal building roofs, metal outer walls, inner and outer walls of various automobile chassis, high-speed trains, airplanes, ships, rail transit, engine cabins, car trunk, special vehicles, passenger car trunk, containers, air-conditioning air pipes, lathes, machine tools, grinding machines, fans, air conditioners, sewer pipes, steel structures, sound insulation covers, high-temperature machines, low-temperature machines, electric boxes, ball mills, inner and outer walls and roofs, GRG plates, plasterboards, wood boards and the like. With the continuous development of the application field of damping coating, a damping coating with excellent weather resistance and anti-fouling performance is required to be suitable for outdoor use.
At present, the damping paint is mainly prepared by taking polyurethane or acrylic resin emulsion as a main film forming substance and adding partial pigment and filler, solvent and auxiliary agent. The fluorocarbon modified silicon polymer emulsion has excellent weather resistance and anti-fouling property, but the fluorocarbon modified silicon polymer emulsion is used as damping paint, and has the problem of poor adhesive force and damping and shock absorption effects.
Disclosure of Invention
In order to provide a damping coating with strong adhesive force and excellent weather resistance, stain resistance and damping and shock absorption performance, the application provides a stain resistance high weather resistance damping coating and a preparation method thereof.
An anti-fouling high-weather-resistance damping coating comprises the following components in parts by mass:
34-50 parts of fluorocarbon modified silicon polymer emulsion
2-8 parts of modified TPU
1-3 parts of wood fiber
1-3 parts of glass fiber
Silane coupling agent 0.5-2 parts
20-30 parts of other fillers
1-5 parts of film forming additive
2-8 parts of solvent.
The application finds that the modified TPU, the wood fiber and the glass fiber are added to be used as functional fillers together, the modified TPU, the wood fiber and the glass fiber have good compatibility with fluorocarbon modified silicon polymer emulsion, excellent dispersibility can be kept in the coating, after the functional fillers are added according to a certain proportion, the adhesive force of the fluorocarbon modified silicon polymer emulsion to a base material can be obviously improved, the surface of the base material is free from priming paint and polishing before construction, only dust removal treatment is needed, the damping and shock absorption effects of a coating film can be obviously improved by adding the modified TPU, the wood fiber and the glass fiber, the problem that the damping and shock absorption effects are poor after the fluorocarbon modified silicon polymer emulsion is formed is solved, and the requirement of the coating on damping and shock absorption is better met.
The damping paint prepared by the application can be used for hiding long-term weather resistance and physical property requirements, is obviously different from that of cast iron, tinplate, steel, stainless steel, glass fiber reinforced plastic and metal-like base materials, can be directly used for outdoor metal surfaces, effectively reduces vibration and noise emitted by equipment, and reduces influence on facilities and surrounding environments.
Preferably, the modified TPU is prepared from the following components in parts by mass:
TPU 100 parts
3-5 parts of initiator acetone solution
120-200 parts of fumaric acid ethanol solution.
Preferably, the preparation method of the modified TPU comprises the following steps: mixing TPU and an initiator acetone solution, soaking for 5-10min at 5-15 ℃, removing acetone, heating to 50-60 ℃, dropwise adding fumaric acid ethanol solution, reacting for 10-20min at constant temperature under ultraviolet irradiation after dropwise adding, washing and drying to obtain the modified TPU.
The unmodified TPU and the fluorocarbon modified silicon polymer emulsion have poor compatibility, cannot be stably dispersed in the fluorocarbon modified silicon polymer emulsion for a long time, have the problem of difficult dispersion, and the prepared coating has poor damping and shock absorption effects.
In the preparation process of the modified TPU, the TPU and an initiator solution are mixed and soaked, so that the TPU and the initiator are fully mixed and contacted, then under the irradiation of an ultraviolet lamp, the initiator is decomposed and abstracts hydrogen on the surface of the TPU, the surface of the TPU is triggered to generate active free radicals, the double bond of fumaric acid is irradiated by ultraviolet light to generate free radicals, the free radicals are grafted on the surface of the TPU, the surface modification of the TPU is promoted, the compatibility of the modified TPU and fluorocarbon modified silicon polymer emulsion is obviously enhanced, the problem that the TPU is difficult to disperse in the fluorocarbon modified silicon polymer emulsion is solved, the modified TPU can be uniformly and stably dispersed in the fluorocarbon modified silicon polymer emulsion for a long time, and the damping and shock absorption performance of the coating is obviously enhanced.
Preferably, the initiator is benzophenone and benzoin and derivatives. The benzoin derivatives include benzoin butyl ether, benzoin isopropyl ether, benzoin diethyl ether and benzoin dimethyl ether, preferably benzoin isopropyl ether.
The combination of the benzophenone, the benzoin and the derivative is used as an initiator, which is favorable for initiating polyurethane reaction, provides sufficient active sites for subsequent reaction and promotes the grafting reaction of fumaric acid and TPU.
Preferably, the concentration of the fumaric acid ethanol solution is 0.2-0.4g/mL; in the initiator acetone solution, the concentration of the diphenyl ketone is 0.06-0.1g/mL, and the concentration of benzoin and derivatives is 0.05-0.08g/mL.
By controlling the concentration of the raw materials, the effect of the grafting reaction of fumaric acid and TPU is better, and the obtained modified TPU and fluorocarbon modified silicon polymer emulsion has better compatibility and can be uniformly dispersed in the modified TPU and fluorocarbon modified silicon polymer emulsion for a long time.
Preferably, the washing is performed by washing with acetone; drying at 50-60deg.C for 1-2 hr.
Preferably, the particle size of the wood fiber is 100-200 meshes; the particle size of the glass fiber is 300-500 meshes.
The damping paint prepared by adopting 100-200 meshes of wood fiber, 300-500 meshes of glass fiber and modified TPU as functional filler and adding the functional filler into fluorocarbon modified silicon polymer emulsion has excellent adhesive force, long-acting weather resistance, stain resistance and damping performance, and is obviously different from other damping paints.
Preferably, the other filler is sericite powder.
Preferably, the film forming auxiliary agent is one or more of 2-amino-2-methyl-1-propanol, propylene glycol methyl ether and dipropylene glycol butyl ether.
Preferably, the solvent is water and a cosolvent, and the cosolvent is ethanol and propylene glycol according to the mass ratio of 1:0.8-1.2 combinations.
The preparation method of the anti-fouling high-weather-resistance damping paint comprises the following steps: and mixing the fluorocarbon modified silicon polymer emulsion, the silane coupling agent and the solvent, uniformly stirring, then adding the modified TPU, the wood fiber, the glass fiber and other fillers, and uniformly stirring to obtain the anti-fouling high-weather-resistance damping coating.
In summary, the present application has the following beneficial effects:
1. the modified TPU, the wood fiber and the glass fiber are added to serve as functional fillers together, so that the adhesive force and the damping and shock absorbing effects of the coating after film formation can be obviously improved, the problem that the damping and shock absorbing effects are poor after film formation of the fluorocarbon modified silicon polymer emulsion is solved, and the requirement of the coating on damping and shock absorbing is better met.
2. According to the modified TPU, fumaric acid is grafted to the surface of the TPU for modification, the compatibility of the modified TPU and the fluorocarbon modified silicon polymer emulsion is obviously enhanced, the problem that the TPU is difficult to disperse in the fluorocarbon modified silicon polymer emulsion is solved, the modified TPU can be uniformly and stably dispersed in the fluorocarbon modified silicon polymer emulsion for a long time, and the damping and shock absorption performance of the coating is obviously enhanced.
3. The damping paint prepared by adopting 100-200 meshes of wood fiber, 300-500 meshes of glass fiber and modified TPU as functional filler and adding the functional filler into fluorocarbon modified silicon polymer emulsion has excellent adhesive force, long-acting weather resistance, stain resistance and damping performance, and is obviously different from other damping paints
Detailed Description
The following raw materials are all commercially available. Wherein the fluorocarbon modified silicon polymer emulsion is an aqueous anionic emulsion formed by polymerizing acrylic monomers, fluoromonomers and multiple functional monomers, and the following examples and comparative examples adopt SD-5681 fluorosilicone emulsion sold by Shengda new materials company. TPU was a 200 mesh ultrafine TPU powder, and HT-870, which is used by Dongguan ShengHao, was used in the following examples and comparative examples.
Example 1
A preparation method of the anti-fouling high-weather-resistance damping paint comprises the following steps:
step 1, preparing modified TPU: 100g of 200-mesh superfine TPU powder and 3g of acetone solution of benzophenone and benzoin propyl ether are mixed, wherein the concentration of the benzophenone is 0.06g/mL, the benzoin propyl ether is 0.05g/mL, the mixture is soaked for 5min at 5 ℃, then acetone is removed, the temperature is raised to 50 ℃, 120g of 0.2 g/mL fumaric acid ethanol solution is dropwise added, after the dropwise addition, the mixture reacts for 10min at constant temperature under ultraviolet irradiation, the mixture is washed three times by acetone, and the mixture is baked for 2h at 50 ℃, so that the modified TPU is obtained.
Step 2, preparing a coating: 34g of fluorocarbon modified silicon polymer emulsion, 0.5g of kh550, 1g of water, 0.5g of ethanol and 0.5g of propylene glycol are mixed and stirred uniformly, and then 2g of modified TPU, 1g of 100-mesh wood fiber, 3g of 300-mesh glass fiber and 20g of sericite powder are added and stirred uniformly, so that the anti-fouling high weather resistance damping paint is obtained.
Example 2
A preparation method of the anti-fouling high-weather-resistance damping paint comprises the following steps:
step 1, preparing modified TPU: 100g of TPU and an acetone solution of 4g of benzophenone and benzoin propyl ether are mixed, wherein the concentration of the benzophenone is 0.08g/mL, the benzoin propyl ether is 0.06g/mL, the mixture is soaked for 5min at the temperature of 5 ℃, then acetone is removed, the temperature is raised to 50 ℃, 150g of 0.3 g/mL fumaric acid ethanol solution is dropwise added, after the dropwise addition, the mixture reacts for 10min under the irradiation of ultraviolet light at constant temperature, the mixture is washed three times by acetone, and the mixture is baked for 2h at the temperature of 50 ℃, so that the modified TPU is obtained.
Step 2, preparing a coating: 42g of fluorocarbon modified silicon polymer emulsion, 1gkh g of water, 1g of ethanol and 1g of propylene glycol are mixed and stirred uniformly, then 5g of modified TPU, 2g of 200-mesh wood fiber, 2g of 400-mesh glass fiber and 25g of sericite powder are added and stirred uniformly, and the anti-fouling high weather resistance damping coating is obtained.
Example 3
A preparation method of the anti-fouling high-weather-resistance damping paint comprises the following steps:
step 1, preparing modified TPU: 100g of TPU and 5g of acetone solution of benzophenone and benzoin propyl ether are mixed, wherein the concentration of the benzophenone is 0.1g/mL, the benzoin propyl ether is 0.06g/mL, the mixture is soaked for 5min at the temperature of 5 ℃, then acetone is removed, the temperature is raised to 50 ℃, 200g of fumaric acid ethanol solution at the temperature of 0.4g/mL is dropwise added, after the dropwise addition is completed, the mixture reacts for 10min under the irradiation of ultraviolet light at constant temperature, the mixture is washed three times by acetone, and the mixture is baked for 2h at the temperature of 50 ℃, so that the modified TPU is obtained.
Step 2, preparing a coating: 50g of fluorocarbon modified silicon polymer emulsion, 1gkh g of water, 2g of ethanol and 2g of propylene glycol are mixed and stirred uniformly, then 8g of modified TPU, 3g of 150-mesh wood fiber, 1g of 500-mesh glass fiber and 30g of sericite powder are added and stirred uniformly, and the anti-fouling high weather resistance damping coating is obtained.
Example 4
A preparation method of the anti-fouling high-weather-resistance damping paint comprises the following steps:
step 1, preparing modified TPU: 100g of TPU and an acetone solution of 4g of benzophenone and benzoin propyl ether are mixed, wherein the concentration of the benzophenone is 0.06g/mL, the benzoin propyl ether is 0.08g/mL, the mixture is soaked for 5min at the temperature of 5 ℃, then acetone is removed, the temperature is raised to 50 ℃, 150g of fumaric acid ethanol solution of 0.3 g/mL is dropwise added, after the dropwise addition is completed, the mixture reacts for 10min under the irradiation of ultraviolet light at constant temperature, the mixture is washed three times by acetone, and the mixture is baked for 2h at the temperature of 50 ℃, so as to obtain the modified TPU.
Step 2, preparing a coating: 42g of fluorocarbon modified silicon polymer emulsion, 1gkh g of water, 1g of ethanol and 1g of propylene glycol are mixed and stirred uniformly, then 5g of modified TPU, 2g of 200-mesh wood fiber, 2g of 300-mesh glass fiber and 25g of sericite powder are added and stirred uniformly, and the anti-fouling high weather resistance damping coating is obtained.
Example 5
A preparation method of the anti-fouling high-weather-resistance damping paint comprises the following steps:
step 1, preparing modified TPU: 100g of TPU and an acetone solution of 4g of benzophenone and benzoin propyl ether are mixed, wherein the concentration of the benzophenone is 0.06g/mL, the benzoin propyl ether is 0.08g/mL, the mixture is soaked for 5min at the temperature of 5 ℃, then acetone is removed, the temperature is raised to 50 ℃, 150g of fumaric acid ethanol solution of 0.3 g/mL is dropwise added, after the dropwise addition is completed, the mixture reacts for 10min under the irradiation of ultraviolet light at constant temperature, the mixture is washed three times by acetone, and the mixture is baked for 2h at the temperature of 50 ℃, so as to obtain the modified TPU.
Step 2, preparing a coating: 42g of fluorocarbon modified silicon polymer emulsion, 1gkh g of water, 1g of ethanol and 1g of propylene glycol are mixed and stirred uniformly, then 5g of modified TPU, 2g of 200-mesh wood fiber, 2g of 400-mesh glass fiber and 25g of sericite powder are added and stirred uniformly, and the anti-fouling high weather resistance damping coating is obtained.
Comparative example 1
A preparation method of the anti-fouling high-weather-resistance damping paint comprises the following steps:
preparing a coating: 42g of fluorocarbon modified silicon polymer emulsion, 1gkh g of water, 1g of ethanol and 1g of propylene glycol are mixed and stirred uniformly, then 5g of unmodified TPU, 2g of 200-mesh wood fiber, 2g of 400-mesh glass fiber and 25g of sericite powder are added and stirred uniformly, and the anti-fouling high weather resistance damping coating is obtained.
Comparative example 2
A preparation method of the anti-fouling high-weather-resistance damping paint comprises the following steps:
step 1, preparing modified TPU: mixing 100g of TPU and 4g of benzophenone in acetone, wherein the concentration of the benzophenone is 0.14g/mL, soaking for 5min at 5 ℃, then removing acetone, heating to 50 ℃, dropwise adding 150g of 0.3 g/mL fumaric acid ethanol solution, reacting for 10min at constant temperature under ultraviolet irradiation after the dropwise adding, washing for three times by adopting acetone, and baking for 2h at 50 ℃ to obtain the modified TPU.
Step 2, preparing a coating: 42g of fluorocarbon modified silicon polymer emulsion, 1gkh g of water, 1g of ethanol and 1g of propylene glycol are mixed and stirred uniformly, then 5g of modified TPU, 2g of 200-mesh wood fiber, 2g of 400-mesh glass fiber and 25g of sericite powder are added and stirred uniformly, and the anti-fouling high weather resistance damping coating is obtained.
Comparative example 3
Step 1, preparing modified TPU: 100g of TPU and an acetone solution of 4g of benzophenone and benzoin propyl ether are mixed, wherein the concentration of the benzophenone is 0.08g/mL, the benzoin propyl ether is 0.06g/mL, the mixture is soaked for 5min at the temperature of 5 ℃, then acetone is removed, the temperature is raised to 50 ℃, 150g of 0.3 g/mL fumaric acid ethanol solution is dropwise added, after the dropwise addition, the mixture reacts for 10min under the irradiation of ultraviolet light at constant temperature, the mixture is washed three times by acetone, and the mixture is baked for 2h at the temperature of 50 ℃, so that the modified TPU is obtained.
Step 2, preparing a coating: 42g of fluorocarbon modified silicon polymer emulsion, 1gkh g of water, 1g of ethanol and 1g of propylene glycol are mixed and stirred uniformly, then 5g of modified TPU and 25g of sericite powder are added and stirred uniformly, and the anti-fouling high weather resistance damping paint is obtained.
Experiment
Performance testing was performed on the coatings of examples 1-5 and comparative examples 1-2 above: the appearance of the coating film is tested according to JG/26-2002, the adhesive force of the damping paint is tested according to GB/T9286, the damping performance of the damping paint is tested according to a cantilever beam method in GB/T18258-2000, the artificial aging resistance test is carried out according to GB/T14522-2008, and the contamination resistance grade of the paint is tested according to GB/T9780-2013.
As can be seen from the test results in the table, compared with the comparative example 1, the modified TPU, the glass fiber and the wood fiber are adopted as the functional filler in the example 2, the damping coating film prepared in the example 2 has smooth and equal appearance, has excellent adhesive force to the base material, still maintains a higher damping coefficient at-15 ℃, can be used in a wider temperature range, overcomes the problem that the adhesive force and the damping effect are poor after the film formation of the fluorocarbon modified silicon polymer emulsion at present, and has obvious improvement in the adhesive force and the damping effect compared with the coating of the comparative example 1.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.
Claims (10)
1. An anti-fouling high-weatherability damping coating is characterized in that: the composite material consists of the following components in parts by weight:
34-50 parts of fluorocarbon modified silicon polymer emulsion
2-8 parts of modified TPU
1-3 parts of wood fiber
1-3 parts of glass fiber
Silane coupling agent 0.5-2 parts
20-30 parts of other fillers
1-5 parts of film forming additive
2-8 parts of solvent.
2. The anti-fouling high weather resistance damping paint according to claim 1, wherein: the modified TPU is prepared from the following components in parts by mass:
TPU 100 parts
3-5 parts of initiator acetone solution
120-200 parts of fumaric acid ethanol solution.
3. The preparation method of the modified TPU comprises the following steps: mixing TPU and an initiator acetone solution, soaking for 5-10min at 5-15 ℃, removing acetone, heating to 50-60 ℃, dropwise adding fumaric acid ethanol solution, reacting for 10-20min at constant temperature under ultraviolet irradiation after dropwise adding, washing and drying to obtain the modified TPU.
4. The anti-fouling high weather resistance damping paint according to claim 1, wherein: the initiator is diphenyl ketone, benzoin and derivatives.
5. An anti-fouling high weatherability damping coating according to claim 3, characterized in that: the benzoin derivatives include benzoin butyl ether, benzoin isopropyl ether, benzoin diethyl ether and benzoin dimethyl ether.
6. An anti-fouling high weatherability damping coating according to claim 2, characterized in that: the concentration of the fumaric acid ethanol solution is 0.2-0.4g/mL; in the initiator acetone solution, the concentration of the diphenyl ketone is 0.06-0.1g/mL, and the concentration of benzoin and derivatives is 0.05-0.08g/mL.
7. An anti-fouling high weatherability damping coating according to claim 2, characterized in that: the washing is carried out by adopting acetone; drying at 50-60deg.C for 1-2 hr.
8. The anti-fouling high weather resistance damping paint according to claim 1, wherein: the particle size of the wood fiber is 100-200 meshes; the particle size of the glass fiber is 300-500 meshes.
9. The anti-fouling high weather resistance damping paint according to claim 1, wherein: the other filler is sericite powder, and the film forming additive is one or more of 2-amino-2-methyl-1-propanol, propylene glycol methyl ether and dipropylene glycol butyl ether
The anti-fouling high weather resistance damping paint according to claim 1, wherein: the solvent consists of water and a cosolvent, wherein the cosolvent is ethanol and propylene glycol according to the mass ratio of 1: 0.8-1.2.
10. A method for preparing the anti-fouling high-weatherability damping paint as claimed in any one of claims 1 to 9, which is characterized in that: and mixing the fluorocarbon modified silicon polymer emulsion, the silane coupling agent and the solvent, uniformly stirring, then adding the modified TPU, the wood fiber, the glass fiber and other fillers, and uniformly stirring to obtain the anti-fouling high-weather-resistance damping coating.
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| CN1607213A (en) * | 2003-10-14 | 2005-04-20 | 北京化工大学 | One-step method of ultraviolet light initiation graft for high molecular material surface |
| CN107286272A (en) * | 2017-07-27 | 2017-10-24 | 北京师范大学 | A kind of method of macromolecular grafted polymerization |
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| CN109504282A (en) * | 2018-12-05 | 2019-03-22 | 湖南松井新材料股份有限公司 | A kind of anti-pollution type hand-feeling coating and its preparation method and application |
| CN109749552A (en) * | 2018-12-19 | 2019-05-14 | 万华化学集团股份有限公司 | A kind of aqueous damping coating and its application in automotive field |
| CN111518445A (en) * | 2020-05-07 | 2020-08-11 | 中国第一汽车股份有限公司 | Water-based damping coating and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1607213A (en) * | 2003-10-14 | 2005-04-20 | 北京化工大学 | One-step method of ultraviolet light initiation graft for high molecular material surface |
| CN107286272A (en) * | 2017-07-27 | 2017-10-24 | 北京师范大学 | A kind of method of macromolecular grafted polymerization |
| CN107502102A (en) * | 2017-09-22 | 2017-12-22 | 苏州振振好新型建材科技有限公司 | A kind of high weather resistant water-thinned multicolor finish of water resistant low temperature and preparation method thereof |
| CN109504282A (en) * | 2018-12-05 | 2019-03-22 | 湖南松井新材料股份有限公司 | A kind of anti-pollution type hand-feeling coating and its preparation method and application |
| CN109749552A (en) * | 2018-12-19 | 2019-05-14 | 万华化学集团股份有限公司 | A kind of aqueous damping coating and its application in automotive field |
| CN111518445A (en) * | 2020-05-07 | 2020-08-11 | 中国第一汽车股份有限公司 | Water-based damping coating and preparation method and application thereof |
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