CN111117321A - High-corrosion-resistance modified epoxy polyester paint for side board of boat - Google Patents
High-corrosion-resistance modified epoxy polyester paint for side board of boat Download PDFInfo
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- CN111117321A CN111117321A CN201911316083.4A CN201911316083A CN111117321A CN 111117321 A CN111117321 A CN 111117321A CN 201911316083 A CN201911316083 A CN 201911316083A CN 111117321 A CN111117321 A CN 111117321A
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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
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
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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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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Abstract
The invention provides a high-corrosion-resistance modified epoxy polyester paint for ship side boards, which is prepared by compounding a component A, a component B and a component C, wherein the mass percentage of the component A, the component B and the component C is 5-15 wt%, 20-30 wt% and the balance of the component A, the component A comprises epoxy resin, polyurethane resin, polyethylene naphthalate, hydroxyl acrylic acid soap-free emulsion, coumarin end group modified nano-olefin polymer and glycidyl methacrylate, the component B comprises a filler, an anti-rust pigment and a coupling agent, and the component C comprises a solvent and a curing agent.
Description
Technical Field
The invention relates to the technical field of high polymer coatings, in particular to a high-corrosion-resistance modified epoxy polyester paint for a side board of a boat.
Background
The boat is a means of transportation which can move on water by means of manpower, sails, engines and other power. Steel materials used as main structural materials in various ships are often damaged by corrosion due to exposure to salt formed by seawater and a constant-temperature and high-humidity environment, and such corrosion may cause a marine accident such as flooding or sinking, and therefore, it is necessary to apply a certain anticorrosion means to the steel materials. At present, in order to improve the corrosion resistance of ships, on one hand, the steel material is improved, and on the other hand, the surface layer of the steel is improved by performing paint film protection treatment.
The organic and inorganic zinc-rich anticorrosive material takes high-content zinc powder as pigment and filler, and has excellent corrosion resistance and protection capability on metal materials. The metal members of the ship have complex structures and diversified corrosion environments, including a straight flat bottom of the ship immersed in seawater for a long time, underwater parts with alternate dryness and wetness of the seawater, a water side, a deck in the sea atmosphere, the outside of an upper building, a ballast tank, a fresh water tank and the like, and have different characteristics for corrosion-resistant materials meeting various requirements. The shop primer used in the shipbuilding industry of this country has poor anticorrosive performance due to the coating, the anticorrosive time is generally 6-12 months, but the phenomena of poor thermal stability, insufficient weather resistance, instability after the coating is formed, and the like often occur in the using process, and the anticorrosive performance of the coating is greatly influenced.
The pure epoxy coating has excellent corrosion resistance, but also has the defect of poor flexibility, has very strict requirements on substrate treatment, and is difficult to reach the treatment standard of a common shipyard. The polyester paint is also called unsaturated polyester paint, is a multi-component paint, and is a thick paint prepared by using polyester resin as a main film forming material. The polyester paint has the advantages of plump paint film, hard layer thickness surface and excellent performance, and because of the use of the curing agent, the paint film has higher hardness, wear resistance, high richness, high humidity resistance, high dry heat resistance, high acid-base oil resistance, high solvent resistance and high insulativity due to various chemicals. But the preparation is troublesome, a large amount of curing agent is needed, the pollution is serious, the retention of the quality at the later stage is not favorable, and the overall repair performance is poor.
Therefore, in order to obtain an anticorrosive paint film with more excellent comprehensive performance, more intensive research and improvement on the prior art are needed, for example, chinese patent publication No. CN101134867 discloses a ship ballast tank coating composition, which adopts special liquid petroleum resin to modify epoxy resin, and utilizes the synergistic curing action of a curing agent to obtain a high-performance epoxy coating composition which has excellent comprehensive performance, does not contain tar, and is applied to corrosive environments such as ship ballast tanks loaded with seawater. For another example, CN1272125A adopts phenolic hydroxyl aromatic petroleum resin to be matched with epoxy resin and a curing agent, and CN1185799A adopts hydroxyl-containing petroleum resin or cracked residual oil with the softening point of 50-150 ℃ to be combined with epoxy resin and an amine curing agent, so as to obtain the protective coating with less pollution, strong corrosion resistance and good flexibility.
Although the protective coating in the prior art has been improved and researched to a certain extent, the prior art still has some defects: if the repairable effect is poor, the corresponding regulation and control performance of the thickness and the performance of the paint film is poor, and the sagging property and the impact resistance are still to be enhanced, so the development of the high-performance anticorrosive and corrosion-resistant paint is still far and hard.
Disclosure of Invention
Aiming at the problems, the invention provides the high-corrosion-resistance modified epoxy polyester paint for the side board of the boat, which is prepared by independently processing and compounding multiple components through reasonable raw material proportion, has good mixing property among the raw materials, high reaction and combination uniformity among the components, obviously improved comprehensive performance and worth of industrial popularization.
In order to achieve the above object, the present invention adopts the following technical solutions:
the high-corrosion-resistance modified epoxy polyester paint for the side board of the boat is prepared by compounding a component A, a component B and a component C, wherein the mass percentage of the component A, the component B and the component C is 5-15 wt% of the component B, 20-30 wt% of the component C and the balance of the component A, the component A comprises epoxy resin, polyurethane resin, polyethylene naphthalate, hydroxyacrylic soap-free emulsion, coumarin end group modified nano olefin polymer and glycidyl methacrylate, the component B comprises filler, antirust pigment and coupling agent, and the component C comprises solvent and curing agent.
Preferably, the component A comprises, by weight, 50-100 parts of epoxy resin, 30-60 parts of polyurethane resin, 10-30 parts of polyethylene naphthalate, 10-30 parts of hydroxyacrylic soap-free emulsion, 5-20 parts of coumarin end group modified nano-olefin polymer and 5-10 parts of glycidyl methacrylate.
Preferably, the coumarin end group modified nano olefin polymer is prepared by reacting 5, 7-dihydroxy-4-methylcoumarin with a styrene/acrylate copolymer.
Preferably, the component B comprises 40-60 parts of filler, 10-25 parts of antirust pigment and 10-30 parts of coupling agent by weight; wherein the filler is a composition of ceramic micropowder, glass flakes and a porous MCM material containing vermiculite powder, and the mass ratio of the ceramic micropowder to the glass flakes to the porous MCM material is 3: 1: 1-2; the anti-rust pigment is a nano iron salt mixture or a nano zinc salt mixture or a composition of the nano iron salt mixture and the nano zinc salt mixture, and if the anti-rust pigment is the composition, the mass ratio of the nano iron salt mixture to the nano zinc salt mixture is as follows: nano zinc salt mixture is 1: 0.5-1; the coupling agent is a silane coupling agent, and concretely can be vinyl triethoxysilane or methyltrimethoxysilane.
Preferably, the component B also comprises 3-5 parts of polyethylene glycol alkyl ether, 3-5 parts of polyvinyl alkyl ether, 3-5 parts of maleic anhydride and 5-10 parts of N-amino maleimide.
Preferably, the component C comprises 20-40 parts of solvent and 30-60 parts of curing agent by weight.
Preferably, the preparation method of the high corrosion resistant modified epoxy polyester paint for the side board of the boat is as follows:
1) preparation of component A:
taking materials according to parts by weight, blending the hydroxyl acrylic acid soap-free emulsion and the coumarin end group modified nano olefin polymer, heating to 55-62 ℃, stirring and mixing for 20-30min to obtain a mixed solution I for later use;
sequentially adding polyethylene naphthalate and glycidyl methacrylate into the first mixed solution, continuously stirring in the adding process, and performing ultrasonic treatment for 3-5min after all the polyethylene naphthalate and the glycidyl methacrylate are added to obtain a second mixed solution for later use;
placing epoxy resin and polyurethane resin in a reaction kettle, heating, pressurizing, stirring and reacting for 20-30min, adding the mixed solution II, stirring and reacting for 10-30min, discharging to obtain a component A, and storing at constant temperature of 35-40 ℃ and normal pressure for later use;
2) preparation of component B
Taking materials according to parts by weight, adding water into the filler, ball-milling the filler until the particle size is 0.3-1 mu m, then sequentially adding the coupling agent, the anti-rust pigment and other residual raw materials into the filler, placing the mixture into a high-speed mixer, stirring the mixture for at least 30min at 70-90 ℃, then carrying out gradient cooling, discharging to obtain a component B, and storing the component B at room temperature and normal pressure for later use;
3) preparation of high corrosion resistant modified epoxy polyester paint
And uniformly blending the component A, the component B and the component C, spraying the mixture on a to-be-protected part of a boat, and drying and curing to obtain a paint film.
Preferably, the ultrasonic treatment in the preparation process of the component A is specifically at the frequency of 25-40KHz for 3-10 min; the heating and pressurizing are carried out at the temperature of 75-85 ℃ and the pressure of 0.75-0.90 MPa.
Preferably, the stirring speed of the high-speed mixer in the preparation process of the component B is 600-800rpm, and the gradient cooling is specifically cooling at the speed of 0.5 ℃/min, and the temperature is kept for 10-15min every time the temperature is cooled by 20 ℃, and then the temperature is continuously cooled.
Preferably, the prepared high-corrosion-resistance modified epoxy polyester paint is ready to use after preparation, and needs to be stirred and mixed for the second time to obtain a uniform fluid after 15-20min after preparation (the performance is reduced when more than 1h is needed, and three components need to be re-prepared and mixed for preparation).
Due to the adoption of the technical scheme, the invention has the beneficial effects that: according to the invention, through reasonable raw material proportion, multiple components are independently treated and compounded, the mixing property among the raw materials is good, the reaction bonding uniformity among the components is high, the comprehensive performance is obviously improved, and the method is worthy of industrial popularization.
According to the invention, epoxy resin and polyurethane resin are adopted as main paint film raw materials, grafting modification of coumarin end group modified nano olefin polymer and polyethylene naphthalate is assisted, under the action of hydroxyl acrylic acid soap-free emulsion and glycidyl methacrylate, the auxiliary materials to be added are sequentially subjected to activity enhancement, and then are reacted with a resin matrix, so that the modification efficiency is greatly improved, the associativity between a reaction site and a grafting group is good, the stability is high, the product is effectively endowed with excellent corrosion resistance, weather resistance and corresponding mechanical properties, and the comprehensive wear resistance and impact resistance are also obviously improved.
According to the invention, the self-made coumarin end group modified nanometer olefin polymer is adopted, the coumarin group is combined with the olefin polymer, and the long-chain compound is combined with the resin base in a contact manner, so that the cross-linking winding property is strong, the influence of steric hindrance is effectively reduced, the carried coumarin group and unsaturated bonds effectively improve the self-repairing effect while the reactivity and the binding property are ensured, and meanwhile, the PEN and the filler components are matched, so that the high hardness is improved, the light inverse reaction and the light sensitive absorption and transmission are remarkably promoted, and the uniformity and the sagging resistance of a paint film are improved to a certain extent.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Example 1:
a high corrosion-resistant modified epoxy polyester paint for ship side plates is prepared by compounding a component A, a component B and a component C, wherein the mass percentages of the component A, the component B and the component C are 10 wt%, 25 wt% and the balance of the component A;
the component A comprises epoxy resin, polyurethane resin, polyethylene naphthalate, hydroxyacrylic soap-free emulsion, coumarin end group modified nano olefin polymer and glycidyl methacrylate; the component A comprises 80 parts by weight of epoxy resin, 40 parts by weight of polyurethane resin, 20 parts by weight of polyethylene naphthalate, 20 parts by weight of hydroxyacrylic soap-free emulsion, 10 parts by weight of coumarin end group modified nano-olefin polymer and 10 parts by weight of glycidyl methacrylate; wherein: the coumarin end group modified nanometer olefin polymer is prepared by reacting 5, 7-dihydroxy-4-methylcoumarin with styrene/acrylate copolymer.
The component B comprises a filler, an antirust pigment and a coupling agent; the component B comprises 50 parts of filler, 20 parts of anti-rust pigment and 20 parts of coupling agent by weight; wherein: the filler is a composition of ceramic micro powder, glass flakes and a porous MCM material containing vermiculite powder, and the mass ratio of the ceramic micro powder to the glass flakes to the porous MCM material is 3: 1: 1; the anti-rust pigment is a nano iron salt mixture; the coupling agent is a silane coupling agent;
the component B also comprises 4 parts of polyethylene glycol alkyl ether, 3 parts of polyvinyl alkyl ether, 3 parts of maleic anhydride and 10 parts of N-amino maleimide.
The component C comprises a solvent and a curing agent; the component C comprises 30 parts of solvent and 60 parts of curing agent by weight.
The preparation method of the high corrosion resistant modified epoxy polyester paint for the side board of the boat comprises the following steps:
1) preparation of component A:
taking materials according to parts by weight, blending the hydroxyl acrylic acid soap-free emulsion and the coumarin end group modified nano olefin polymer, heating to 55-62 ℃, stirring and mixing for 20-30min to obtain a mixed solution I for later use;
sequentially adding polyethylene naphthalate and glycidyl methacrylate into the first mixed solution, continuously stirring in the adding process, and performing ultrasonic treatment for 3-5min after all the polyethylene naphthalate and the glycidyl methacrylate are added to obtain a second mixed solution for later use;
placing epoxy resin and polyurethane resin in a reaction kettle, heating, pressurizing, stirring and reacting for 20-30min, adding the mixed solution II, stirring and reacting for 10-30min, discharging to obtain a component A, and storing at constant temperature of 35-40 ℃ and normal pressure for later use;
2) preparation of component B
Taking materials according to parts by weight, adding water into the filler, ball-milling the filler until the particle size is 0.3-1 mu m, then sequentially adding the coupling agent, the anti-rust pigment and other residual raw materials into the filler, placing the mixture into a high-speed mixer, stirring the mixture for at least 30min at 70-90 ℃, then carrying out gradient cooling, discharging to obtain a component B, and storing the component B at room temperature and normal pressure for later use;
3) preparation of high corrosion resistant modified epoxy polyester paint
And uniformly blending the component A, the component B and the component C, spraying the mixture on a to-be-protected part of a boat, and drying and curing to obtain a paint film.
Wherein:
the ultrasonic treatment in the preparation process of the component A is specifically at the frequency of 30KHz for 5 min; heating and pressurizing at 80 deg.C under 0.85 MPa; the stirring speed of a high-speed mixer in the preparation process of the component B is 800rpm, the gradient cooling is specifically cooling at the speed of 0.5 ℃/min, and the temperature is kept for 10-15min every time the temperature is lowered by 20 ℃, and then the temperature is continuously lowered; the prepared high-corrosion-resistance modified epoxy polyester paint is ready to use after being prepared, and needs to be stirred and mixed for the second time to be uniform fluid after being prepared for more than 15-20 min.
Example 2:
a high corrosion-resistant modified epoxy polyester paint for ship side plates is prepared by compounding a component A, a component B and a component C, wherein the mass percentages of the component A, the component B and the component C are 15 wt%, 20 wt% and the balance of the component A;
the component A comprises epoxy resin, polyurethane resin, polyethylene naphthalate, hydroxyacrylic soap-free emulsion, coumarin end group modified nano olefin polymer and glycidyl methacrylate; the component A comprises 100 parts of epoxy resin, 40 parts of polyurethane resin, 10 parts of polyethylene naphthalate, 30 parts of hydroxyacrylic soap-free emulsion, 15 parts of coumarin end group modified nano-olefin polymer and 10 parts of glycidyl methacrylate; wherein: the coumarin end group modified nanometer olefin polymer is prepared by reacting 5, 7-dihydroxy-4-methylcoumarin with styrene/acrylate copolymer.
The component B comprises a filler, an antirust pigment and a coupling agent; the component B comprises 60 parts of filler, 25 parts of anti-rust pigment and 30 parts of coupling agent by weight; wherein: the filler is a composition of ceramic micro powder, glass flakes and a porous MCM material containing vermiculite powder, and the mass ratio of the ceramic micro powder to the glass flakes to the porous MCM material is 3: 1: 2; the anti-rust pigment is a nano iron salt mixture; the coupling agent is a silane coupling agent;
the component B also comprises 5 parts of polyethylene glycol alkyl ether, 3 parts of polyvinyl alkyl ether, 5 parts of maleic anhydride and 5 parts of N-amino maleimide.
The component C comprises a solvent and a curing agent; the component C comprises 40 parts of solvent and 60 parts of curing agent by weight.
The preparation method of the high corrosion resistant modified epoxy polyester paint for the side board of the boat is the same as that of the example 1.
Wherein:
the ultrasonic treatment in the preparation process of the component A is specifically at the frequency of 40KHz for 3 min; heating and pressurizing at 85 deg.C under 0.80 MPa; the stirring speed of a high-speed mixer in the preparation process of the component B is 800rpm, the gradient cooling is specifically cooling at the speed of 0.5 ℃/min, and the temperature is kept for 10-15min every time the temperature is lowered by 20 ℃, and then the temperature is continuously lowered; the prepared high-corrosion-resistance modified epoxy polyester paint is ready to use after being prepared, and needs to be stirred and mixed for the second time to be uniform fluid after being prepared for more than 15-20 min.
Example 3:
a high corrosion-resistant modified epoxy polyester paint for ship side plates is prepared by compounding a component A, a component B and a component C, wherein the mass percentages of the component A, the component B and the component C are 10 wt%, 20 wt% and the balance of the component A;
the component A comprises epoxy resin, polyurethane resin, polyethylene naphthalate, hydroxyacrylic soap-free emulsion, coumarin end group modified nano olefin polymer and glycidyl methacrylate; the component A comprises 50 parts of epoxy resin, 50 parts of polyurethane resin, 10 parts of polyethylene naphthalate, 20 parts of hydroxyacrylic soap-free emulsion, 20 parts of coumarin end group modified nano-olefin polymer and 8 parts of glycidyl methacrylate; wherein: the coumarin end group modified nanometer olefin polymer is prepared by reacting 5, 7-dihydroxy-4-methylcoumarin with styrene/acrylate copolymer.
The component B comprises a filler, an antirust pigment and a coupling agent; the component B comprises 40 parts of filler, 15 parts of anti-rust pigment and 20 parts of coupling agent by weight; wherein: the filler is a composition of ceramic micro powder, glass flakes and a porous MCM material containing vermiculite powder, and the mass ratio of the ceramic micro powder to the glass flakes to the porous MCM material is 3: 1: 2; the anti-rust pigment is a nano iron salt mixture; the coupling agent is a silane coupling agent;
the component B also comprises 3 parts of polyethylene glycol alkyl ether, 3 parts of polyvinyl alkyl ether, 3 parts of maleic anhydride and 5 parts of N-amino maleimide.
The component C comprises a solvent and a curing agent; the component C comprises 40 parts of solvent and 30 parts of curing agent by weight.
The preparation method of the high corrosion resistant modified epoxy polyester paint for the side board of the boat is the same as that of the example 1.
Wherein:
the ultrasonic treatment in the preparation process of the component A is specifically at the frequency of 25KHz for 10 min; heating and pressurizing at 85 deg.C under 0.75 MPa; the stirring speed of a high-speed mixer in the preparation process of the component B is 800rpm, the gradient cooling is specifically cooling at the speed of 0.5 ℃/min, and the temperature is kept for 10-15min every time the temperature is lowered by 20 ℃, and then the temperature is continuously lowered; the prepared high-corrosion-resistance modified epoxy polyester paint is ready to use after being prepared, and needs to be stirred and mixed for the second time to be uniform fluid after being prepared for more than 15-20 min.
Example 4:
a high corrosion-resistant modified epoxy polyester paint for ship side plates is prepared by compounding a component A, a component B and a component C, wherein the mass percentages of the component A, the component B and the component C are 5 wt%, 25 wt% and the balance of the component A;
the component A comprises epoxy resin, polyurethane resin, polyethylene naphthalate, hydroxyacrylic soap-free emulsion, coumarin end group modified nano olefin polymer and glycidyl methacrylate; the component A comprises 100 parts of epoxy resin, 50 parts of polyurethane resin, 10 parts of polyethylene naphthalate, 30 parts of hydroxyacrylic soap-free emulsion, 5 parts of coumarin end group modified nano-olefin polymer and 5 parts of glycidyl methacrylate; wherein: the coumarin end group modified nanometer olefin polymer is prepared by reacting 5, 7-dihydroxy-4-methylcoumarin with styrene/acrylate copolymer.
The component B comprises a filler, an antirust pigment and a coupling agent; the component B comprises 40 parts of filler, 15 parts of anti-rust pigment and 10 parts of coupling agent by weight; wherein: the filler is a composition of ceramic micro powder, glass flakes and a porous MCM material containing vermiculite powder, and the mass ratio of the ceramic micro powder to the glass flakes to the porous MCM material is 3: 1: 1; the anti-rust pigment is a nano zinc salt mixture; the coupling agent is a silane coupling agent;
the component B also comprises 3 parts of polyethylene glycol alkyl ether, 5 parts of polyvinyl alkyl ether, 3 parts of maleic anhydride and 10 parts of N-amino maleimide.
The component C comprises a solvent and a curing agent; the component C comprises 30 parts of solvent and 30 parts of curing agent by weight.
The preparation method of the high corrosion resistant modified epoxy polyester paint for the side board of the boat is the same as that of the example 1.
Wherein:
the ultrasonic treatment in the preparation process of the component A is specifically at the frequency of 35KHz for 5 min; heating and pressurizing at 75 deg.C under 0.80 MPa; the stirring speed of a high-speed mixer in the preparation process of the component B is 700rpm, the gradient cooling is specifically cooling at the speed of 0.5 ℃/min, and the temperature is kept for 10-15min every time the temperature is lowered by 20 ℃, and then the temperature is continuously lowered; the prepared high-corrosion-resistance modified epoxy polyester paint is ready to use after being prepared, and needs to be stirred and mixed for the second time to be uniform fluid after being prepared for more than 15-20 min.
Example 5:
a high corrosion-resistant modified epoxy polyester paint for ship side plates is prepared by compounding a component A, a component B and a component C, wherein the mass percentages of the component A, the component B and the component C are 10 wt%, 25 wt% and the balance of the component A;
the component A comprises epoxy resin, polyurethane resin, polyethylene naphthalate, hydroxyacrylic soap-free emulsion, coumarin end group modified nano olefin polymer and glycidyl methacrylate; the component A comprises 80 parts by weight of epoxy resin, 40 parts by weight of polyurethane resin, 10 parts by weight of polyethylene naphthalate, 15 parts by weight of hydroxyacrylic soap-free emulsion, 15 parts by weight of coumarin end group modified nano-olefin polymer and 5 parts by weight of glycidyl methacrylate; wherein: the coumarin end group modified nanometer olefin polymer is prepared by reacting 5, 7-dihydroxy-4-methylcoumarin with styrene/acrylate copolymer.
The component B comprises a filler, an antirust pigment and a coupling agent; the component B comprises 50 parts of filler, 15 parts of anti-rust pigment and 30 parts of coupling agent by weight; wherein: the filler is a composition of ceramic micro powder, glass flakes and a porous MCM material containing vermiculite powder, and the mass ratio of the ceramic micro powder to the glass flakes to the porous MCM material is 3: 1: 2; the antirust pigment is a composition of a nano iron salt mixture and a nano zinc salt mixture, and the addition ratio is 1: 0.5; the coupling agent is a silane coupling agent;
the component B also comprises 3 parts of polyethylene glycol alkyl ether, 5 parts of polyvinyl alkyl ether, 3 parts of maleic anhydride and 8 parts of N-amino maleimide.
The component C comprises a solvent and a curing agent; the component C comprises 35 parts of solvent and 50 parts of curing agent by weight.
The preparation method of the high corrosion resistant modified epoxy polyester paint for the side board of the boat is the same as that of the example 1.
Wherein:
the ultrasonic treatment in the preparation process of the component A is specifically at the frequency of 30KHz for 10 min; heating and pressurizing at 80 deg.C under 0.90 MPa; the stirring speed of a high-speed mixer in the preparation process of the component B is 700rpm, the gradient cooling is specifically cooling at the speed of 0.5 ℃/min, and the temperature is kept for 10-15min every time the temperature is lowered by 20 ℃, and then the temperature is continuously lowered; the prepared high-corrosion-resistance modified epoxy polyester paint is ready to use after being prepared, and needs to be stirred and mixed for the second time to be uniform fluid after being prepared for more than 15-20 min.
Example 6:
a high corrosion-resistant modified epoxy polyester paint for ship side plates is prepared by compounding a component A, a component B and a component C, wherein the mass percentages of the component A, the component B and the component C are 10 wt%, 25 wt% and the balance of the component A;
the component A comprises epoxy resin, polyurethane resin, polyethylene naphthalate, hydroxyacrylic soap-free emulsion, coumarin end group modified nano olefin polymer and glycidyl methacrylate; the component A comprises 100 parts of epoxy resin, 30 parts of polyurethane resin, 10 parts of polyethylene naphthalate, 30 parts of hydroxyacrylic soap-free emulsion, 5 parts of coumarin end group modified nano-olefin polymer and 5 parts of glycidyl methacrylate; wherein: the coumarin end group modified nanometer olefin polymer is prepared by reacting 5, 7-dihydroxy-4-methylcoumarin with styrene/acrylate copolymer.
The component B comprises a filler, an antirust pigment and a coupling agent; the component B comprises 40 parts of filler, 10 parts of anti-rust pigment and 25 parts of coupling agent by weight; wherein: the filler is a composition of ceramic micro powder, glass flakes and a porous MCM material containing vermiculite powder, and the mass ratio of the ceramic micro powder to the glass flakes to the porous MCM material is 3: 1: 1; the anti-rust pigment is a nano zinc salt mixture; the coupling agent is a silane coupling agent;
the component B also comprises 3 parts of polyethylene glycol alkyl ether, 5 parts of polyvinyl alkyl ether, 3 parts of maleic anhydride and 5 parts of N-amino maleimide.
The component C comprises a solvent and a curing agent; the component C comprises 30 parts of solvent and 50 parts of curing agent by weight.
The preparation method of the high corrosion resistant modified epoxy polyester paint for the side board of the boat is the same as that of the example 1.
Wherein:
the ultrasonic treatment in the preparation process of the component A is specifically at the frequency of 30KHz for 5 min; heating and pressurizing at 80 deg.C under 0.80 MPa; the stirring speed of a high-speed mixer in the preparation process of the component B is 600rpm, the gradient cooling is specifically cooling at the speed of 0.5 ℃/min, and the temperature is kept for 10-15min every time the temperature is lowered by 20 ℃, and then the temperature is continuously lowered; the prepared high-corrosion-resistance modified epoxy polyester paint is ready to use after being prepared, and needs to be stirred and mixed for the second time to be uniform fluid after being prepared for more than 15-20 min.
The high corrosion resistance modified epoxy polyester paint prepared by the embodiment of the invention is subjected to performance test, and the data is as follows:
the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The high-corrosion-resistance modified epoxy polyester paint for the side board of the boat is characterized by comprising the following components in parts by weight: the paint is prepared by compounding a component A, a component B and a component C, wherein the mass percentage of the component A, the component B and the component C is 5-15 wt%, the component C is 20-30 wt% and the balance is the component A, the component A comprises epoxy resin, polyurethane resin, polyethylene naphthalate, hydroxyl acrylic acid soap-free emulsion, coumarin end group modified nano olefin polymer and methacrylic acid glycidyl ester, the component B comprises filler, antirust pigment and coupling agent, and the component C comprises solvent and curing agent.
2. The high-corrosion-resistance modified epoxy polyester paint for the side board of the boat according to claim 1, which is characterized in that: the component A comprises, by weight, 50-100 parts of epoxy resin, 30-60 parts of polyurethane resin, 10-30 parts of polyethylene naphthalate, 10-30 parts of hydroxyacrylic soap-free emulsion, 5-20 parts of coumarin end group modified nano olefin polymer and 5-10 parts of glycidyl methacrylate.
3. The high-corrosion-resistance modified epoxy polyester paint for the side board of the boat according to claim 2, which is characterized in that: the coumarin end group modified nanometer olefin polymer is prepared by reacting 5, 7-dihydroxy-4-methylcoumarin with styrene/acrylate copolymer.
4. The high-corrosion-resistance modified epoxy polyester paint for the side board of the boat according to claim 1, which is characterized in that: the component B comprises 40-60 parts of filler, 10-25 parts of anti-rust pigment and 10-30 parts of coupling agent by weight; wherein the filler is a composition of ceramic micropowder, glass flakes and a porous MCM material containing vermiculite powder, and the mass ratio of the ceramic micropowder to the glass flakes to the porous MCM material is 3: 1: 1-2; the anti-rust pigment is a nano iron salt mixture or a nano zinc salt mixture or a combination of the nano iron salt mixture and the nano zinc salt mixture; the coupling agent is a silane coupling agent.
5. The high-corrosion-resistance modified epoxy polyester paint for the side board of the boat according to claim 4, wherein the high-corrosion-resistance modified epoxy polyester paint is characterized in that: the component B also comprises 3-5 parts of polyethylene glycol alkyl ether, 3-5 parts of polyvinyl alkyl ether, 3-5 parts of maleic anhydride and 5-10 parts of N-amino maleimide.
6. The high-corrosion-resistance modified epoxy polyester paint for the side board of the boat according to claim 1, which is characterized in that: the component C comprises 20-40 parts of solvent and 30-60 parts of curing agent by weight.
7. The high-corrosion-resistance modified epoxy polyester paint for the side board of the boat according to any one of claims 1 to 6, which is prepared by the following steps:
1) preparation of component A:
taking materials according to parts by weight, blending the hydroxyl acrylic acid soap-free emulsion and the coumarin end group modified nano olefin polymer, heating to 55-62 ℃, stirring and mixing for 20-30min to obtain a mixed solution I for later use;
sequentially adding polyethylene naphthalate and glycidyl methacrylate into the first mixed solution, continuously stirring in the adding process, and performing ultrasonic treatment for 3-5min after all the polyethylene naphthalate and the glycidyl methacrylate are added to obtain a second mixed solution for later use;
placing epoxy resin and polyurethane resin in a reaction kettle, heating, pressurizing, stirring and reacting for 20-30min, adding the mixed solution II, stirring and reacting for 10-30min, discharging to obtain a component A, and storing at constant temperature of 35-40 ℃ and normal pressure for later use;
2) preparation of component B
Taking materials according to parts by weight, adding water into the filler, ball-milling the filler until the particle size is 0.3-1 mu m, then sequentially adding the coupling agent, the anti-rust pigment and other residual raw materials into the filler, placing the mixture into a high-speed mixer, stirring the mixture for at least 30min at 70-90 ℃, then carrying out gradient cooling, discharging to obtain a component B, and storing the component B at room temperature and normal pressure for later use;
3) preparation of high corrosion resistant modified epoxy polyester paint
And uniformly blending the component A, the component B and the component C, spraying the mixture on a to-be-protected part of a boat, and drying and curing to obtain a paint film.
8. The high-corrosion-resistance modified epoxy polyester paint for the side board of the boat according to claim 7, which is characterized in that: the ultrasonic treatment in the preparation process of the component A is specifically at the frequency of 25-40KHz for 3-10 min; the heating and pressurizing are carried out at the temperature of 75-85 ℃ and the pressure of 0.75-0.90 MPa.
9. The high-corrosion-resistance modified epoxy polyester paint for the side board of the boat according to claim 7, which is characterized in that: the stirring speed of the high-speed mixer is 600-800rpm in the preparation process of the component B, the gradient cooling is specifically cooling at the speed of 0.5 ℃/min, and the temperature is kept for 10-15min every time the temperature is lowered by 20 ℃, and then the temperature is continuously lowered.
10. The high-corrosion-resistance modified epoxy polyester paint for the side board of the boat according to claim 7, which is characterized in that: the prepared high-corrosion-resistance modified epoxy polyester paint is ready to use after being prepared, and needs to be stirred and mixed for the second time to be uniform fluid after being prepared for more than 15-20 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911316083.4A CN111117321A (en) | 2019-12-19 | 2019-12-19 | High-corrosion-resistance modified epoxy polyester paint for side board of boat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911316083.4A CN111117321A (en) | 2019-12-19 | 2019-12-19 | High-corrosion-resistance modified epoxy polyester paint for side board of boat |
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| Publication Number | Publication Date |
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| CN111117321A true CN111117321A (en) | 2020-05-08 |
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| CN201911316083.4A Withdrawn CN111117321A (en) | 2019-12-19 | 2019-12-19 | High-corrosion-resistance modified epoxy polyester paint for side board of boat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961555A (en) * | 2021-02-08 | 2021-06-15 | 山东深海农湾科技有限公司 | Special anticorrosive and anti-parasitic material and method for deep-sea net cage |
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2019
- 2019-12-19 CN CN201911316083.4A patent/CN111117321A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961555A (en) * | 2021-02-08 | 2021-06-15 | 山东深海农湾科技有限公司 | Special anticorrosive and anti-parasitic material and method for deep-sea net cage |
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Application publication date: 20200508 |