CN111471381A - Low-surface-energy polyurea marine organism adhesion-preventing coating and preparation method thereof - Google Patents
Low-surface-energy polyurea marine organism adhesion-preventing coating and preparation method thereof Download PDFInfo
- Publication number
- CN111471381A CN111471381A CN202010212851.8A CN202010212851A CN111471381A CN 111471381 A CN111471381 A CN 111471381A CN 202010212851 A CN202010212851 A CN 202010212851A CN 111471381 A CN111471381 A CN 111471381A
- Authority
- CN
- China
- Prior art keywords
- component
- molecular weight
- diamine
- polyether
- nano powder
- 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.)
- Pending
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 35
- 239000011248 coating agent Substances 0.000 title claims abstract description 33
- 229920002396 Polyurea Polymers 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims description 20
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 60
- 229920000570 polyether Polymers 0.000 claims abstract description 60
- 150000004985 diamines Chemical class 0.000 claims abstract description 38
- 239000011858 nanopowder Substances 0.000 claims abstract description 38
- -1 polyoxypropylene Polymers 0.000 claims abstract description 31
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 30
- 239000011737 fluorine Substances 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 24
- 229920005862 polyol Polymers 0.000 claims abstract description 22
- 150000003077 polyols Chemical class 0.000 claims abstract description 22
- PISLZQACAJMAIO-UHFFFAOYSA-N 2,4-diethyl-6-methylbenzene-1,3-diamine Chemical compound CCC1=CC(C)=C(N)C(CC)=C1N PISLZQACAJMAIO-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229920001451 polypropylene glycol Polymers 0.000 claims abstract description 20
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims abstract description 20
- 229920002545 silicone oil Polymers 0.000 claims abstract description 20
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000000049 pigment Substances 0.000 claims abstract description 19
- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 12
- 239000012948 isocyanate Substances 0.000 claims abstract description 4
- 150000002513 isocyanates Chemical group 0.000 claims abstract description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 10
- 239000004408 titanium dioxide Substances 0.000 claims description 10
- 239000002033 PVDF binder Substances 0.000 claims description 9
- 230000010071 organism adhesion Effects 0.000 claims description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 9
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 7
- 230000003746 surface roughness Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 3
- 235000010215 titanium dioxide Nutrition 0.000 description 9
- 230000007227 biological adhesion Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 2
- 241001521809 Acoma Species 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/02—Polyureas
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
- C08G18/3237—Polyamines aromatic
- C08G18/324—Polyamines aromatic containing only one aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/482—Mixtures of polyethers containing at least one polyether containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
-
- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
-
- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
-
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a low-surface-energy polyurea marine organism adhesion-preventing coating which is composed of a component A and a component B, wherein the volume ratio of the component A to the component B is 1-1.2: 1. The component A comprises the following components in percentage by mass: 30-45% of polyoxypropylene diamine with molecular weight of 2000, 15-25% of polyether diamine with molecular weight of 4000, 10-15% of polyether triamine with molecular weight of 5000, 15-25% of diethyl toluene diamine, 3-8% of amino modified silicone oil, 2-5% of pigment, 0.5-2% of defoaming agent and 5-15% of fluorine-containing nano powder; and the component B is isocyanate prepolymer. Adding polyoxypropylene diamine, polyether triamine, diethyl toluene diamine, amino modified silicone oil, pigment and a defoaming agent into a reaction kettle according to a proportion, stirring, adding fluorine-containing nano powder, and stirring to obtain a component A; adding dicyclohexyl methane diisocyanate and polyether polyol into a reaction kettle, and stirring for reaction to obtain a component B; the prepared component A and the component B can be brushed on the surface of a substrate material after being uniformly mixed, and a film with high strength and low surface energy is formed after curing.
Description
Technical Field
The invention relates to the field of special coatings, in particular to a low-surface-energy polyurea coating for preventing marine organism adhesion and a preparation method thereof.
Background
With the increasing compactness of economic connection among countries in the world, the maritime transportation industry continues to prosper. When the ship runs on the sea, the ship is not only exposed to severe environments such as high humidity and high salt, but also easily adsorbed by underwater organisms at the position below a waterline, so that the ship body can be seriously corroded, the sailing resistance of the ship body is increased, and the consumption of fuel is greatly increased.
In addition, with the development of economic society, more and more offshore buildings such as cross-sea bridges and the like are built in our country, and marine organisms can damage the structural strength of the relevant buildings to a certain extent after being adsorbed on the concrete surfaces such as piers and the like, so that the service life of the buildings can be influenced, and certain potential safety hazards can be brought.
At present, in order to inhibit the adsorption of organisms on relevant materials, a mode of coating an antifouling paint on relevant base materials is generally adopted to inhibit the adhesion of marine organisms. However, most of the coatings have a series of problems of easy release of organic pollutants into seawater, low strength, easy falling off and the like.
Disclosure of Invention
The invention aims to provide a low-surface-energy polyurea coating for preventing marine organism adhesion so as to solve the technical problem.
The polyurea marine organism adhesion-preventing coating provided by the invention comprises two components, namely a component A and a component B, wherein the volume ratio of the component A to the component B is 1-1.2: 1;
the component A comprises the following components in percentage by mass: 30-45% of polyoxypropylene diamine with molecular weight of 2000, 15-25% of polyether diamine with molecular weight of 4000, 10-15% of polyether triamine with molecular weight of 5000, 15-25% of diethyl toluene diamine, 3-8% of amino modified silicone oil, 2-5% of pigment, 0.5-2% of defoaming agent and 5-15% of fluorine-containing nano powder;
the fluorine-containing nano powder comprises one or more of polytetrafluoroethylene nano powder, polyvinylidene fluoride nano powder and fluorine-treated superfine titanium dioxide.
The introduction of the fluorine-containing nano powder can further reduce the surface energy of the coating and better inhibit the adhesion of marine organisms on the surface of the coating.
The component B is isocyanate prepolymer.
The invention also provides a preparation method of the polyurea marine organism adhesion-preventing coating, which comprises the following steps:
(1) preparation of component A:
adding polyoxypropylene diamine with molecular weight of 2000, polyether diamine with molecular weight of 4000, polyether triamine with molecular weight of 5000, diethyl toluene diamine, amino modified silicone oil, pigment and defoaming agent into a reaction kettle, stirring for 5-10 minutes at the rotating speed of 85r/min, adding fluorine-containing nano powder, and stirring for 30-60 minutes at the rotating speed of 110r/min to obtain a component A.
Wherein the component A comprises the following components in percentage by mass: 30-45% of polyoxypropylene diamine with molecular weight of 2000, 15-25% of polyether diamine with molecular weight of 4000, 10-15% of polyether triamine with molecular weight of 5000, 15-25% of diethyl toluene diamine, 3-8% of amino modified silicone oil, 2-5% of pigment, 0.5-2% of defoaming agent and 5-15% of fluorine-containing nano powder;
the fluorine-containing nano powder comprises one or more of polytetrafluoroethylene nano powder, polyvinylidene fluoride nano powder and fluorine-treated superfine titanium dioxide.
(2) Preparation of component B:
adding dicyclohexyl methane diisocyanate and polyether polyol into a reaction kettle, and stirring and reacting at the temperature of 70-90 ℃ at the rotating speed of 85r/min for 2-4 hours to obtain a component B;
the molecular weight of the polyether polyol is 2000-4000;
in the component B, 50-60% of dicyclohexyl methane diisocyanate and 40-50% of polyether polyol are calculated according to mass fraction.
(3) The prepared component A and the component B are mixed and sprayed on the surface of a substrate material by a two-component spray gun according to the volume ratio of 1-1.2: 1, and the effect of inhibiting marine organism adhesion can be achieved after film forming and curing.
After the marine organism adhesion-preventing coating is sprayed on a base material, the surface roughness is 3-10 mu m, no obvious organism adhesion exists after the coating is soaked offshore for one year, the tensile strength after film forming can reach 18-26 MPa, and the impact resistance can reach 68-90 cm (determined by a national standard GB/T1732-93 method).
In the coating component, the fluorine-containing nano powder is introduced into the polyurea, so that the surface energy of the coating is further reduced, and the adhesion of marine organisms on the surface of the coating is better inhibited. The polyoxypropylene diamine, the polyether triamine and the diethyl toluene diamine are jointly used as a curing agent, so that the comprehensive performance of polyurea can be effectively improved, and the film-formed polyurea coating has good tensile resistance and impact resistance. The amino modified silicone oil can improve the compatibility of a system, has flexibility, and further increases the toughness of the coating after film formation.
Drawings
Fig. 1 is a block diagram of a preparation process provided herein.
Detailed Description
The invention provides a low-surface-energy polyurea marine organism adhesion-preventing coating which comprises a component A and a component B, wherein the volume ratio of the component A to the component B is 1-1.2: 1, the surface roughness of the coating after being sprayed on a base material is 3-10 mu m, no obvious organism adhesion exists after the coating is soaked offshore for one year, the tensile strength after film forming can reach 18-26 MPa, and the impact resistance can reach 68-90 cm (determined by a national standard GB/T1732-93 method).
The component A comprises the following components in percentage by mass: 30-45% of polyoxypropylene diamine with molecular weight of 2000, 15-25% of polyether diamine with molecular weight of 4000, 10-15% of polyether triamine with molecular weight of 5000, 15-25% of diethyl toluene diamine, 3-8% of amino modified silicone oil, 2-5% of pigment, 0.5-2% of defoaming agent and 5-15% of fluorine-containing nano powder;
the fluorine-containing nano powder comprises one or more of polytetrafluoroethylene nano powder, polyvinylidene fluoride nano powder and fluorine-treated superfine titanium dioxide.
The component B is isocyanate prepolymer.
As shown in figure 1, the invention also provides a preparation method of the low surface energy polyurea marine organism adhesion-preventing coating, which comprises the following steps:
(1) preparation of component A:
adding polyoxypropylene diamine with molecular weight of 2000, polyether diamine with molecular weight of 4000, polyether triamine with molecular weight of 5000, diethyl toluene diamine, amino modified silicone oil, pigment and defoaming agent into a reaction kettle, stirring for 5-10 minutes at the rotating speed of 85r/min, adding fluorine-containing nano powder, and stirring for 30-60 minutes at the rotating speed of 110r/min to obtain a component A.
Wherein the component A comprises the following components in percentage by mass: 30-45% of polyoxypropylene diamine with molecular weight of 2000, 15-25% of polyether diamine with molecular weight of 4000, 10-15% of polyether triamine with molecular weight of 5000, 15-25% of diethyl toluene diamine, 3-8% of amino modified silicone oil, 2-5% of pigment, 0.5-2% of defoaming agent and 5-15% of fluorine-containing nano powder;
the fluorine-containing nano powder comprises one or more of polytetrafluoroethylene nano powder, polyvinylidene fluoride nano powder and fluorine-treated superfine titanium dioxide.
(2) Preparation of component B:
adding dicyclohexyl methane diisocyanate and polyether polyol into a reaction kettle, and stirring and reacting at the temperature of 70-90 ℃ at the rotating speed of 85r/min for 2-4 hours to obtain a component B;
the molecular weight of the polyether polyol is 2000-4000;
in the component B, 50-60% of dicyclohexyl methane diisocyanate and 40-50% of polyether polyol are calculated according to mass fraction.
(3) The prepared component A and the component B are mixed and sprayed on the surface of a substrate material by a two-component spray gun according to the volume ratio of 1-1.2: 1, and the effect of inhibiting marine organism adhesion can be achieved after film forming and curing.
The following examples of the method of the present invention are described, wherein the chemical materials used in the examples are commercially available, wherein the polytetrafluoroethylene nanopowder is available from DuPont, Inc., USA, the polyvinylidene fluoride is available from Acoma, France, and the fluorine-treated ultrafine titanium dioxide is available from Guangzhou open-end chemical Co.
Example 1
(1) Preparation of component A:
adding polyoxypropylene diamine with molecular weight of 2000, polyether diamine with molecular weight of 4000, polyether triamine with molecular weight of 5000, diethyl toluene diamine, amino modified silicone oil, pigment and defoaming agent into a reaction kettle, stirring for 6 minutes at the rotating speed of 85r/min, adding polytetrafluoroethylene fluorine nano powder, and stirring for 35 minutes at the rotating speed of 110r/min to obtain the component A.
Wherein the component A comprises the following components in percentage by mass: 33% of polyoxypropylene diamine with molecular weight of 2000, 20% of polyether diamine with molecular weight of 4000, 12% of polyether triamine with molecular weight of 5000, 23% of diethyl toluene diamine, 4% of amino modified silicone oil, 2% of pigment, 1% of defoaming agent and 5% of polytetrafluoroethylene fluorine nano powder;
(2) preparation of component B:
adding dicyclohexyl methane diisocyanate and polyether polyol into a reaction kettle, and stirring and reacting at 75 ℃ at a rotating speed of 85r/min for 3 hours to obtain a component B;
the polyether polyol has a molecular weight of 2000;
in the component B, 53 percent of dicyclohexyl methane diisocyanate and 47 percent of polyether polyol are calculated according to mass fraction.
(3) The prepared component A and the component B are mixed and sprayed on the surface of a substrate material by a two-component spray gun according to the volume ratio of 1: 1.
After the coating corresponding to the embodiment is sprayed on a substrate material, the surface roughness is 5 mu m, no obvious biological adhesion exists after the coating is soaked for one year offshore, the tensile strength after film forming can reach 20MPa, and the impact resistance can reach 70cm (determined by a national standard GB/T1732-93 method).
Example 2
(1) Preparation of component A:
adding polyoxypropylene diamine with molecular weight of 2000, polyether diamine with molecular weight of 4000, polyether triamine with molecular weight of 5000, diethyl toluene diamine, amino modified silicone oil, pigment and defoaming agent into a reaction kettle, stirring for 9 minutes at the rotating speed of 85r/min, adding fluorine-treated superfine titanium white powder, and stirring for 50 minutes at the rotating speed of 110r/min to obtain the component A.
Wherein the component A comprises the following components in percentage by mass: 31% of polyoxypropylene diamine with molecular weight of 2000, 16% of polyether diamine with molecular weight of 4000, 12% of polyether triamine with molecular weight of 5000, 16% of diethyl toluene diamine, 7% of amino modified silicone oil, 3.5% of pigment, 1.5% of defoaming agent and 13% of fluorine-treated superfine titanium dioxide powder;
(2) preparation of component B:
adding dicyclohexyl methane diisocyanate and polyether polyol into a reaction kettle, and stirring and reacting at 85 ℃ at a rotating speed of 85r/min for 2 hours to obtain a component B;
the polyether polyol has a molecular weight of 4000;
in the component B, 58% of dicyclohexylmethane diisocyanate and 42% of polyether polyol are calculated according to mass fraction.
(3) The prepared component A and the component B are mixed and sprayed on the surface of a substrate material by a two-component spray gun according to the volume ratio of 1.1: 1.
After the coating corresponding to the embodiment is sprayed on a substrate material, the surface roughness is 8 mu m, no obvious biological adhesion exists after the coating is soaked for one year offshore, the tensile strength after film forming can reach 25MPa, and the impact resistance can reach 88cm (determined by a national standard GB/T1732-93 method).
Example 3
(1) Preparation of component A:
adding polyoxypropylene diamine with molecular weight of 2000, polyether diamine with molecular weight of 4000, polyether triamine with molecular weight of 5000, diethyl toluene diamine, amino modified silicone oil, pigment and defoaming agent into a reaction kettle, stirring for 7 minutes at the rotating speed of 85r/min, adding polyvinylidene fluoride nano powder, and stirring for 55 minutes at the rotating speed of 110r/min to obtain the component A.
Wherein the component A comprises the following components in percentage by mass: 38% of polyoxypropylene diamine with molecular weight of 2000, 15% of polyether diamine with molecular weight of 4000, 10% of polyether triamine with molecular weight of 5000, 20% of diethyl toluene diamine, 5% of amino modified silicone oil, 3.2% of pigment, 1.8% of defoaming agent and 7% of polyvinylidene fluoride nano powder;
(2) preparation of component B:
adding dicyclohexyl methane diisocyanate and polyether polyol into a reaction kettle, and stirring and reacting at 80 ℃ at a rotating speed of 85r/min for 2.5 hours to obtain a component B;
the polyether polyol has a molecular weight of 3000;
in the component B, the dicyclohexylmethane diisocyanate and the polyether polyol are 55% and 45% respectively by mass.
(3) The prepared component A and the component B are mixed and sprayed on the surface of a substrate material by a two-component spray gun according to the volume ratio of 1.2: 1.
After the coating corresponding to the embodiment is sprayed on a substrate material, the surface roughness is 9 mu m, no obvious biological adhesion exists after the coating is soaked for one year offshore, the tensile strength after film forming can reach 22MPa, and the impact resistance can reach 80cm (determined by a national standard GB/T1732-93 method).
Example 4
(1) Preparation of component A:
adding polyoxypropylene diamine with molecular weight of 2000, polyether diamine with molecular weight of 4000, polyether triamine with molecular weight of 5000, diethyl toluene diamine, amino modified silicone oil, pigment and defoaming agent into a reaction kettle, stirring for 6 minutes at the rotating speed of 85r/min, adding polytetrafluoroethylene nano powder and fluorine-treated superfine titanium dioxide, and stirring for 58 minutes at the rotating speed of 110r/min to obtain the component A.
Wherein the component A comprises the following components in percentage by mass: 42% of polyoxypropylene diamine with molecular weight of 2000, 18% of polyether diamine with molecular weight of 4000, 14% of polyether triamine with molecular weight of 5000, 15% of diethyl toluene diamine, 3% of amino modified silicone oil, 2.5% of pigment, 0.5% of defoaming agent, 3% of polytetrafluoroethylene nano powder and 2% of fluorine-treated ultrafine titanium dioxide;
(2) preparation of component B:
adding dicyclohexyl methane diisocyanate and polyether polyol into a reaction kettle, and stirring and reacting at 80 ℃ at a rotating speed of 85r/min for 3 hours to obtain a component B;
the polyether polyol has a molecular weight of 3000;
in the component B, 54% of dicyclohexylmethane diisocyanate and 46% of polyether polyol are calculated according to mass fraction.
(3) The prepared component A and the component B are mixed and sprayed on the surface of a substrate material by a two-component spray gun according to the volume ratio of 1.1: 1.
After the coating corresponding to the embodiment is sprayed on a substrate material, the surface roughness is 4 mu m, no obvious biological adhesion exists after the coating is soaked for one year offshore, the tensile strength after film forming can reach 22MPa, and the impact resistance can reach 77cm (determined by a national standard GB/T1732-93 method).
While the invention has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof and modifications may be made as may be needed to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention include all embodiments falling within the scope of the appended claims.
Claims (2)
1. A low-surface-energy polyurea marine organism adhesion-preventing coating is composed of a component A and a component B, the volume ratio of the component A to the component B is 1-1.2: 1, the surface roughness of the coating after being sprayed on a base material is 3-10 mu m, no obvious organism adhesion exists after the coating is soaked offshore for one year, the tensile strength after film forming can reach 18-26 MPa, and the impact resistance can reach 68-90 cm (determined by a national standard GB/T1732-93 method).
The component A comprises the following components in percentage by mass: 30-45% of polyoxypropylene diamine with molecular weight of 2000, 15-25% of polyether diamine with molecular weight of 4000, 10-15% of polyether triamine with molecular weight of 5000, 15-25% of diethyl toluene diamine, 3-8% of amino modified silicone oil, 2-5% of pigment, 0.5-2% of defoaming agent and 5-15% of fluorine-containing nano powder;
the fluorine-containing nano powder comprises one or more of polytetrafluoroethylene nano powder, polyvinylidene fluoride nano powder and fluorine-treated superfine titanium dioxide.
The component B is isocyanate prepolymer.
2. A method for preparing the low surface energy polyurea marine organism adhesion preventing coating as claimed in claim 1, characterized in that the method comprises the following steps:
(1) preparation of component A:
adding polyoxypropylene diamine with molecular weight of 2000, polyether diamine with molecular weight of 4000, polyether triamine with molecular weight of 5000, diethyl toluene diamine, amino modified silicone oil, pigment and defoaming agent into a reaction kettle, stirring for 5-10 minutes at the rotating speed of 85r/min, adding fluorine-containing nano powder, and stirring for 30-60 minutes at the rotating speed of 110r/min to obtain a component A.
Wherein the component A comprises the following components in percentage by mass: 30-45% of polyoxypropylene diamine with molecular weight of 2000, 15-25% of polyether diamine with molecular weight of 4000, 10-15% of polyether triamine with molecular weight of 5000, 15-25% of diethyl toluene diamine, 3-8% of amino modified silicone oil, 2-5% of pigment, 0.5-2% of defoaming agent and 5-15% of fluorine-containing nano powder;
the fluorine-containing nano powder comprises one or more of polytetrafluoroethylene nano powder, polyvinylidene fluoride nano powder and fluorine-treated superfine titanium dioxide.
(2) Preparation of component B:
adding dicyclohexyl methane diisocyanate and polyether polyol into a reaction kettle, and stirring and reacting at the temperature of 70-90 ℃ at the rotating speed of 85r/min for 2-4 hours to obtain a component B;
the molecular weight of the polyether polyol is 2000-4000;
in the component B, 50-60% of dicyclohexyl methane diisocyanate and 40-50% of polyether polyol are calculated according to mass fraction.
(3) The prepared component A and the component B are mixed and sprayed on the surface of a substrate material by a two-component spray gun according to the volume ratio of 1-1.2: 1, and the effect of inhibiting marine organism adhesion can be achieved after film forming and curing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010212851.8A CN111471381A (en) | 2020-03-24 | 2020-03-24 | Low-surface-energy polyurea marine organism adhesion-preventing coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010212851.8A CN111471381A (en) | 2020-03-24 | 2020-03-24 | Low-surface-energy polyurea marine organism adhesion-preventing coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111471381A true CN111471381A (en) | 2020-07-31 |
Family
ID=71747692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010212851.8A Pending CN111471381A (en) | 2020-03-24 | 2020-03-24 | Low-surface-energy polyurea marine organism adhesion-preventing coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111471381A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060210807A1 (en) * | 2005-03-11 | 2006-09-21 | Microphase Coatings, Inc. | Antifouling coating composition |
| CN101108950A (en) * | 2006-07-22 | 2008-01-23 | 金东圭 | Low friction type anti-fouling paint |
| CN102838931A (en) * | 2011-06-23 | 2012-12-26 | 中国石油天然气集团公司 | Epoxy modified polysiloxane low surface energy antifouling coating and preparation method thereof |
| CN105176343A (en) * | 2015-09-12 | 2015-12-23 | 宁波申泰干粉建材有限公司 | Waterproof polyurea coating and preparation method thereof |
| CN108997909A (en) * | 2018-06-07 | 2018-12-14 | 上海沐皿新材料科技有限公司 | High glossy low friction type anti-fouling paint |
| CN110577791A (en) * | 2018-06-07 | 2019-12-17 | 上海沐皿新材料科技有限公司 | Environment-friendly silicon antifouling paint composition |
-
2020
- 2020-03-24 CN CN202010212851.8A patent/CN111471381A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060210807A1 (en) * | 2005-03-11 | 2006-09-21 | Microphase Coatings, Inc. | Antifouling coating composition |
| CN101108950A (en) * | 2006-07-22 | 2008-01-23 | 金东圭 | Low friction type anti-fouling paint |
| CN102838931A (en) * | 2011-06-23 | 2012-12-26 | 中国石油天然气集团公司 | Epoxy modified polysiloxane low surface energy antifouling coating and preparation method thereof |
| CN105176343A (en) * | 2015-09-12 | 2015-12-23 | 宁波申泰干粉建材有限公司 | Waterproof polyurea coating and preparation method thereof |
| CN108997909A (en) * | 2018-06-07 | 2018-12-14 | 上海沐皿新材料科技有限公司 | High glossy low friction type anti-fouling paint |
| CN110577791A (en) * | 2018-06-07 | 2019-12-17 | 上海沐皿新材料科技有限公司 | Environment-friendly silicon antifouling paint composition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7807734B2 (en) | Low friction type anti-fouling paint | |
| KR101464287B1 (en) | Water-soluble coating for anti-corrosion treatment of oceanic climate-resisting engineering parts and preparing method thereof | |
| CN102559024A (en) | Aqueous polyurethane heat reflection coating and application thereof | |
| WO2021027368A1 (en) | Polyurea coating acting against ocean engineering corrosion and preparation method therefor | |
| CN106280969A (en) | Preparation method based on modified polyether fluorosilicon oil low surface energy antifouling coating for seas | |
| CN108219628B (en) | Marine corrosion-resistant aircraft engine deionized water paint and preparation method thereof | |
| CN111117423A (en) | Elastic epoxy resin coating and preparation method thereof | |
| CN105778742B (en) | A kind of low temperature curing type acroleic acid polyurethane coating and manufacturing method | |
| KR20230042205A (en) | Aspartic polyurea resin system and paint composition having marine antifouling function | |
| CN111471381A (en) | Low-surface-energy polyurea marine organism adhesion-preventing coating and preparation method thereof | |
| CN116496681B (en) | Corrosion-resistant and wear-resistant modified polyamide resin coating and preparation method thereof | |
| CN110079170B (en) | Underwater coating ship antifouling paint and preparation method thereof | |
| CN103342955A (en) | Eradication-resisting and coating-preventing marker paint for fishery vessel | |
| CN114292571B (en) | Ship anticorrosive paint and preparation and use methods thereof | |
| CN101831232B (en) | Rare earth compound epoxy zinc-rich paint for preventing microorganism attachment and preparation method thereof | |
| CN113563752A (en) | Marine anticorrosive paint and preparation method thereof | |
| CN110240836B (en) | Fluorocarbon anticorrosive paint | |
| CN202123747U (en) | Composite alloy resin anticorrosion coating of steel structure in maritime work environment | |
| CN105238156A (en) | Low-roughness marine coating and manufacturing method thereof | |
| CN110951333A (en) | Environment-friendly antifouling paint | |
| CN210560199U (en) | High-adhesion long-acting anti-fouling industrial anticorrosive paint | |
| CN114774071B (en) | Self-cleaning, wear-resistant and corrosion-resistant single-component silicone sealant and preparation method thereof | |
| CN103952070B (en) | Solvent-free polymeric type anticorrosive paint and preparation method thereof | |
| CN111217583B (en) | Graphene modified nano coating and preparation method thereof | |
| CN113372790A (en) | Three-component coating composition |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200731 |
|
| RJ01 | Rejection of invention patent application after publication |