CN104650729A - Preparation method of anti-falling corrosion-resistant double-metal composite coating - Google Patents
Preparation method of anti-falling corrosion-resistant double-metal composite coating Download PDFInfo
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Abstract
The invention discloses a preparation method of an anti-falling corrosion-resistant double-metal composite coating. The composite coating consists of a composition A, a composition B and heat-resistant filler in a weight ratio of 1.5: 1: 1; 0.5-1 part of compound rare earth, 30-35 parts of a vapor phase inhibitor, 20-25 parts of deionized water and 10-15 parts of a thixotropic agent are added into the composition B; the heat-resistant filler comprises nanosilicon dioxide, blocking functional filler and powdered aluminum in a mass ratio of 1.5: 1: 1; the blocking functional filler comprises the following components in parts by mass: 2-6 parts of hollow glass beads, 10-15 parts of graphite, 20-35 parts of black silicon carbide, 25-30 parts of fine crystal aluminum oxide, 5-10 parts of molybdenum disulfide, 1-5 parts of zinc oxide and 3-6 parts of talcum powder.
Description
Technical field
The present invention relates to composite coating and manufacture field thereof, particularly a kind of preparation method of peel corrosion resistant type bimetal composite coating.
Background technology
In order to stop generation, the development of corrosion of metal, have to carry out the rust cleaning of metal, antirust, corrosion prevention operation; Prevent the method for metallic corrosion a lot, the metal protection method of current employing can be divided three classes: a class carries out anodic oxidation treatment, namely the anode oxide film of one deck tens microns is formed in metallic surface, but because anode oxidation process energy consumption is large, and electrolyte solution is seriously polluted, be difficult to process, its application is restricted; Equations of The Second Kind is chemical conversion film, be immersed in the solution of certain component by metal parts, chemical reaction is relied on to form one deck chemical conversion film at a certain temperature, now most widely used is chromic salt chemical oxidation, but chromic salt is a kind of carcinogenic toxicant, world environments protective tissue has limited and has used chromic salt with other containing chromate compound; 3rd class is organic coating, namely applies one deck organic coating in metallic surface, to improve outward appearance and the physical and chemical performance of metal.
People start aseptic technic VCI material being used in metallic surface in recent years; VCI, namely gas-phase slow-release erosion agent is also known as volatile corrosion inhibitor, and the gas adsorption automatically volatilized at normal temperatures, on metallic surface, can suppress the atomospheric corrosion of metal, directly contacting metal is not surperficial for vapour-phase inhibitor, can spontaneously be adsorbed on protected metallic surface, formed layer protecting film, therefore can make the surface of metal products, inner chamber, pipeline, groove even slotted section can protect, its rust-proof life is long, easy and simple to handle, cost is low, does not pollute environment; VCI material has catered to the development trend of " low-carbon (LC) ", feature for traditional surface treatment high pollution, high cost is improved, and the former surface treatment for aviation machine of this technology, improves by our company, be applied to the surface treatments such as crane span structure, play the effect of environmental protection, low consumption.
Face the future the development trend of " low-carbon (LC) ", and high temperature organosilicon paint industry early has preparation in fact; In recent years, coating industry is devoted to exploitation low stain, high solid or solvent-free (comprising powder, photocuring) coating, water-borne coatings (organosilicon heat-resistant lacquer) always; The anti-soil technology of exploitation low environment risk and antifouling paint; The rust-stabilising pigment of exploitation non-lead, chromium and substitute develop the process for cleanly preparing of titanium dioxide, iron oxide pigment; Positive formulation coating industry process for cleanly preparing judgement criterias etc., to promote the development of coating industry novel process, novel material and new technology.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the shortcoming of prior art, provides a kind of preparation method of peel corrosion resistant type bimetal composite coating.
In order to solve above technical problem, the invention provides a kind of preparation method of peel corrosion resistant type bimetal composite coating, this composite coating is made up of composition A, composition B and heat-resistant filler, the weight ratio of composition A, composition B and heat-resistant filler be 1.5:1:1;
Composition A comprise following component by mass percentage: boron modification silicone resin: 45-58%, organosilicon acrylic resin: 10%-60%, fluorinated alkyl silicon ester: 3-25%, epoxy resin: 10%-60%, erucicamide: 0.5%-8%, Ployethylene Wax: 0.1%-5%, tetrafluoroethylene: 0-5%, silicone oil: 0.1%-2%, grafted-organosilicon resin: 20-40%, aluminium powder: 35-45%, zinc powder: 25-30%, auxiliary agent: 2-4%, above sum is 100%;
Wherein, boron modification silicone resin is boric acid modified silicone resin or epoxide modified silicon boron resin;
The preparation process of fluorinated alkyl silicon ester is: get 10-60 part 28% tetraethyl silicate and drop in reactor, stir 35% silicate fluoride solution slowly dropping into 2-25 part, in 25-80 DEG C of range temperature, react 1-5 hour, form fluorinated alkyl silicon ester;
Composition B comprise following component by mass percentage: Rutile type Titanium Dioxide: 13-25 part, film coalescence aid: 4-15 part, defoamer: 0.1-0.2 part, dispersion agent; 0.3-0.7 part, anti-sudden strain of a muscle rust agent: 0.1-0.2 part, toughner: 0.3-0.5 part, wetting agent: 2-6 part, solidifying agent 20-50 part, matting agent: 2-6 part, thickening material: 5-10 part, Natvosol: 5-10 part, pH adjusting agent: 1-5 part, silane coupling agent: 40-60 part, compound rare-earth: 0.5-1 part, vapour-phase inhibitor: 30-35 part, deionized water: 20-25 part, thixotropic agent: 10-15 part;
Heat-resisting color stuffing comprises:
Nano silicon, isolation-type functional stuffing and aluminium powder and the mass ratio of nano silicon, isolation-type functional stuffing and aluminium powder is 1.5:1:1;
Isolation-type functional stuffing comprises following component according to the mass fraction:
Hollow glass micropearl: 2-6 part, graphite: 10-15 part, black silicon carbide: 20-35 part, fine-grained alumina: 25-30 part, molybdenumdisulphide: 5-10 part, zinc oxide: 1-5 part, talcum powder: 3-6 part;
Graphite and molybdenumdisulphide have good synergistic effect, both are the wear resisting property that effectively can improve coating used in combination in certain proportion, reduce wear weight loss and frictional coefficient, in coating, add a certain amount of antimonous oxide simultaneously, effectively can strengthen the hardness of paint coatings, and improve the wear resistance of coating;
Nano silicon is due to roughly the same with the basic structure of base-material, particle diameter is also less, can be filled in the gap of resin binder better, even can become a resin binder network structure part, good supplementary function is had to the heat-resisting three dimensional structure of high-crosslinking-degree, make resin can form the SiO2 refractory protection of one deck fine heat-resisting performance when decomposes, prevent the continuation of inner layer resin base-material to decompose, can give paint film better thermostability;
The preparation method of this composite coating comprises the following steps:
(1) preparation of composition A: get boron modification silicone resin and auxiliary agent by mass percentage and put in dispersion cylinder and stir, stirring velocity is that 400-500 turns/min, stirs 20-30min and obtains uniform pre-composition; Then get aluminium powder by mass percentage to add under whipped state in obtained pre-composition, and then add zinc powder 25-30%, adjusting rotary speed is that 400-600 turns/min, stir 25-50min, finally add organosilicon acrylic resin, fluorinated alkyl silicon ester, epoxy resin, erucicamide, Ployethylene Wax, tetrafluoroethylene, silicone oil, grafted-organosilicon resin by mass percentage, rotating speed is that 400-600 turns/min, and stir 25-50min, standing 25-30min obtains composition A;
(2) preparation of composition B: get vapour-phase inhibitor by mass percentage, deionized water drops in dispersion cylinder and carries out stirring and evenly mixing, stirring velocity is that 250-300 turns/min, stir 20-30min, then under whipped state, solidifying agent is added, thixotropic agent, dispersion agent, adjusting rotary speed is that 400-450 turns/min, stir 25-30min, finally add Rutile type Titanium Dioxide, film coalescence aid, defoamer, the agent of anti-sudden strain of a muscle rust, thickening material, wetting agent, solidifying agent, matting agent, toughner, Natvosol, pH adjusting agent, silane coupling agent, compound rare-earth, adjusting rotary speed is that 500-550 turns/min, stir 25-30min, standing 10-15min obtains composition B,
(3) composition A, B and heat-resistant filler compound: composition A, composition B and heat-resistant filler are mixed solidification by weight for 1.5:1:1, obtains peel corrosion resistant type bimetal composite coating;
Vapour-phase inhibitor is the core of volatile rust preventive material, current commercially available conventional vapour-phase inhibitor is organic amine and its esters, particularly nitrites, organic amine salt contacts with nitrite will generate nitrosamine, and nitrosamine is a kind of carcinogenic substance, and it is large to add vapour-phase inhibitor volatility, in use easily by people's suction body, the vapour-phase inhibitor used in the present invention is anodic corrosion inhibitor, shows good corrosion mitigating effect to carbon steel, copper and brass, and efficiently, low toxicity, environmental protection;
Bimetal composite coating is nonpoisonous and tasteless environmentally friendly matallic surface layer, coating good luster, and metal-like is strong, has good decorative appearance; This VCI bimetal composite coating and any organic coating can be combined closely, and can cover and be coated with various organic coating, can form the surface anticorrosion layer of antiacid alkali heavy corrosion medium on VCI bimetal composite coating surface; Constructability, pre-treatment is easy, non-environmental-pollution; Coating has galvanic protection effect, has self-healing effect to metallic surface slight damage;
VCI bimetal coating belongs to metallic paint, and because high-performance vapour-phase inhibitor (VCI) plays corrosion inhibition to coating, weathering resistance is strong, and uvioresistant, without aging; The high-performance vapour-phase inhibitor adopted, plays corrosion inhibition to zinc powder, slow down the consumption of zinc powder, thus inhibit the generation of zinc powder superficial white zinc oxide, improve the life-span against corrosion of coating.
The technical scheme that the present invention limits further is:
Further, the preparation method of aforesaid peel corrosion resistant type bimetal composite coating, toughner is the one in polymeric amide, carboxyl liquid acrylonitrile butadiene rubber, poly-nonane diacid acid anhydride or urethane.
The preparation method of aforesaid peel corrosion resistant type bimetal composite coating, thixotropic agent be one in organobentonite, aerosil, polyamide wax or modified urea solution; Compound rare-earth comprises following composition by weight percentage: La:30-33%, Y:16-18%, Sc:13-15%, Gd:8-10%, Sm:9-11%, Pr:18-20%, and above each component sum is 100%.
The preparation method of aforesaid peel corrosion resistant type bimetal composite coating, the preparation method of boric acid modified silicone resin is:
Choose boric acid and silicone resin as reactant, the mass ratio of boric acid and silicone resin is 9.1:1, water consumption needed for silicone resin complete hydrolysis water consumption 45%, polyreaction is carried out at 80-90 DEG C, reaction times is 4h, be heated 3h subsequently at 390-410 DEG C, both obtained boric acid modified silicone resin;
Along with temperature raises the polycondensation contributing to silicone resin; Temperature is too high higher than system temperature when 90 DEG C, local superheating, polycondensation is violent, occur flocculation phenomenon, the residue ethoxyl content 85 DEG C time and 90 DEG C time content be more or less the same, the level of response of system is roughly the same, and micro-gel phenomenon of not flocculating, under 85 DEG C of temperature condition, obtained resin is mass loss difference 0.11% 500 DEG C time, and the thermotolerance of resin obtained under this temperature condition more.
The preparation method of aforesaid peel corrosion resistant type bimetal composite coating, the preparation method of epoxide modified silicon boron resin is:
The mass ratio choosing epoxy resin and organic boron silicone resin is 25:100, and choosing propyl carbinol, pimelinketone and diformazan is benzene mixed solvent, and its volume ratio is 3.5:1:4.5, reacts 5h and both obtained epoxide modified silicon boron resin at 145-155 DEG C.
Embodiment
embodiment 1
The preparation method of a kind of peel corrosion resistant type bimetal composite coating that the present embodiment provides, this composite coating is made up of composition A, composition B and heat-resistant filler, the weight ratio of composition A, composition B and heat-resistant filler be 1.5:1:1;
Composition A comprise following component by mass percentage: boron modification silicone resin: 45-58%, organosilicon acrylic resin: 10%-60%, fluorinated alkyl silicon ester: 3-25%, epoxy resin: 10%-60%, erucicamide: 0.5%-8%, Ployethylene Wax: 0.1%-5%, tetrafluoroethylene: 0-5%, silicone oil: 0.1%-2%, grafted-organosilicon resin: 20-40%, aluminium powder: 35-45%, zinc powder: 25-30%, auxiliary agent: 2-4%, above sum is 100%;
Wherein, boron modification silicone resin is boric acid modified silicone resin, and preparation method is:
Choose boric acid and silicone resin as reactant, the mass ratio of boric acid and silicone resin is 9.1:1, water consumption needed for silicone resin complete hydrolysis water consumption 45%, polyreaction is carried out at 80 DEG C, reaction times is 4h, and be heated 3h subsequently at 410 DEG C, both obtained boric acid modified silicone resin;
The preparation process of fluorinated alkyl silicon ester is: get 60 part of 28% tetraethyl silicate and drop in reactor, stir 35% silicate fluoride solution slowly dropping into 2 parts, react 5 hours in 80 DEG C of range temperature, form fluorinated alkyl silicon ester;
Composition B comprise following component by mass percentage: Rutile type Titanium Dioxide: 13 parts, film coalescence aid: 15 parts, defoamer: 0.1 part, dispersion agent, 0.7 part, anti-sudden strain of a muscle rust agent: 0.1 part, toughner: 0.5 part, wetting agent: 2 parts, 50 parts, solidifying agent, matting agent: 2 parts, thickening material: 10 parts, Natvosol: 5 parts, pH adjusting agent: 5 parts, silane coupling agent: 40 parts, compound rare-earth: 1 part, vapour-phase inhibitor: 35 parts, deionized water: 20 parts, thixotropic agent: 15 parts, toughner is polymeric amide, thixotropic agent is organobentonite, compound rare-earth comprises following composition by weight percentage: La:30-33%, Y:16-18%, Sc:13-15%, Gd:8-10%, Sm:9-11%, Pr:18-20%, each component sum is 100% above,
Heat-resisting color stuffing comprises:
Nano silicon, isolation-type functional stuffing and aluminium powder and the mass ratio of nano silicon, isolation-type functional stuffing and aluminium powder is 1.5:1:1;
Isolation-type functional stuffing comprises following component according to the mass fraction:
Hollow glass micropearl: 2 parts, graphite: 15 parts, black silicon carbide: 20 parts, fine-grained alumina: 30 parts, molybdenumdisulphide: 5 parts, zinc oxide: 5 parts, talcum powder: 3 parts;
The preparation method of this composite coating comprises the following steps:
(1) preparation of composition A: get boron modification silicone resin and auxiliary agent by mass percentage and put in dispersion cylinder and stir, stirring velocity is 500 turns/min, stirs 20min and obtains uniform pre-composition; Then get aluminium powder by mass percentage to add under whipped state in obtained pre-composition, and then add zinc powder 30%, adjusting rotary speed is 400 turns/min, stir 50min, finally add organosilicon acrylic resin, fluorinated alkyl silicon ester, epoxy resin, erucicamide, Ployethylene Wax, tetrafluoroethylene, silicone oil, grafted-organosilicon resin by mass percentage, rotating speed is 400 turns/min, and stir 50min, standing 25min obtains composition A;
(2) preparation of composition B: get vapour-phase inhibitor by mass percentage, deionized water drops in dispersion cylinder and carries out stirring and evenly mixing, stirring velocity is 300 turns/min, stir 20min, then under whipped state, solidifying agent is added, thixotropic agent, dispersion agent, adjusting rotary speed is 450 turns/min, stir 25min, finally add Rutile type Titanium Dioxide, film coalescence aid, defoamer, the agent of anti-sudden strain of a muscle rust, thickening material, wetting agent, solidifying agent, matting agent, toughner, Natvosol, pH adjusting agent, silane coupling agent, compound rare-earth, adjusting rotary speed is 550 turns/min, stir 25min, standing 15min obtains composition B,
(3) composition A, B and heat-resistant filler compound: composition A, composition B and heat-resistant filler are mixed solidification by weight for 1.5:1:1, obtains peel corrosion resistant type bimetal composite coating.
embodiment 2
The preparation method of a kind of peel corrosion resistant type bimetal composite coating that the present embodiment provides, this composite coating is made up of composition A, composition B and heat-resistant filler, the weight ratio of composition A, composition B and heat-resistant filler be 1.5:1:1;
Composition A comprise following component by mass percentage: boron modification silicone resin: 45-58%, organosilicon acrylic resin: 10%-60%, fluorinated alkyl silicon ester: 3-25%, epoxy resin: 10%-60%, erucicamide: 0.5%-8%, Ployethylene Wax: 0.1%-5%, tetrafluoroethylene: 0-5%, silicone oil: 0.1%-2%, grafted-organosilicon resin: 20-40%, aluminium powder: 35-45%, zinc powder: 25-30%, auxiliary agent: 2-4%, above sum is 100%;
Wherein, boron modification silicone resin is boric acid modified silicone resin, and preparation method is:
Choose boric acid and silicone resin as reactant, the mass ratio of boric acid and silicone resin is 9.1:1, water consumption needed for silicone resin complete hydrolysis water consumption 45%, polyreaction is carried out at 80 DEG C, reaction times is 4h, and be heated 3h subsequently at 410 DEG C, both obtained boric acid modified silicone resin;
The preparation process of fluorinated alkyl silicon ester is: get 10 part of 28% tetraethyl silicate and drop in reactor, stir 35% silicate fluoride solution slowly dropping into 25 parts, react 5 hours in 25 DEG C of range temperature, form fluorinated alkyl silicon ester;
Composition B comprise following component by mass percentage: Rutile type Titanium Dioxide: 25 parts, film coalescence aid: 4 parts, defoamer: 0.2 part, dispersion agent, 0.3 part, anti-sudden strain of a muscle rust agent: 0.2 part, toughner: 0.3 part, wetting agent: 6 parts, 20 parts, solidifying agent, matting agent: 6 parts, thickening material: 5 parts, Natvosol: 10 parts, pH adjusting agent: 1 part, silane coupling agent: 60 parts, compound rare-earth: 0.5 part, vapour-phase inhibitor: 35 parts, deionized water: 20 parts, thixotropic agent: 15 parts, toughner is carboxyl liquid acrylonitrile butadiene rubber, thixotropic agent is aerosil, compound rare-earth comprises following composition by weight percentage: La:30-33%, Y:16-18%, Sc:13-15%, Gd:8-10%, Sm:9-11%, Pr:18-20%, each component sum is 100% above,
Heat-resisting color stuffing comprises:
Nano silicon, isolation-type functional stuffing and aluminium powder and the mass ratio of nano silicon, isolation-type functional stuffing and aluminium powder is 1.5:1:1;
Isolation-type functional stuffing comprises following component according to the mass fraction:
Hollow glass micropearl: 6 parts, graphite: 10 parts, black silicon carbide: 35 parts, fine-grained alumina: 25 parts, molybdenumdisulphide: 5-10 part, zinc oxide: 5 parts, talcum powder: 3 parts;
The preparation method of this composite coating comprises the following steps:
(1) preparation of composition A: get boron modification silicone resin and auxiliary agent by mass percentage and put in dispersion cylinder and stir, stirring velocity is 400 turns/min, stirs 30min and obtains uniform pre-composition; Then get aluminium powder by mass percentage to add under whipped state in obtained pre-composition, and then add zinc powder 25-30%, adjusting rotary speed is 400 turns/min, stir 50min, finally add organosilicon acrylic resin, fluorinated alkyl silicon ester, epoxy resin, erucicamide, Ployethylene Wax, tetrafluoroethylene, silicone oil, grafted-organosilicon resin by mass percentage, rotating speed is 400 turns/min, and stir 50min, standing 25min obtains composition A;
(2) preparation of composition B: get vapour-phase inhibitor by mass percentage, deionized water drops in dispersion cylinder and carries out stirring and evenly mixing, stirring velocity is 300 turns/min, stir 20min, then under whipped state, solidifying agent is added, thixotropic agent, dispersion agent, adjusting rotary speed is 450 turns/min, stir 25min, finally add Rutile type Titanium Dioxide, film coalescence aid, defoamer, the agent of anti-sudden strain of a muscle rust, thickening material, wetting agent, solidifying agent, matting agent, toughner, Natvosol, pH adjusting agent, silane coupling agent, compound rare-earth, adjusting rotary speed is 550 turns/min, stir 25min, standing 15min obtains composition B,
(3) composition A, B and heat-resistant filler compound: composition A, composition B and heat-resistant filler are mixed solidification by weight for 1.5:1:1, obtains peel corrosion resistant type bimetal composite coating.
embodiment 3
The preparation method of a kind of peel corrosion resistant type bimetal composite coating that the present embodiment provides, this composite coating is made up of composition A, composition B and heat-resistant filler, the weight ratio of composition A, composition B and heat-resistant filler be 1.5:1:1;
Composition A comprise following component by mass percentage: boron modification silicone resin: 45-58%, organosilicon acrylic resin: 10%-60%, fluorinated alkyl silicon ester: 3-25%, epoxy resin: 10%-60%, erucicamide: 0.5%-8%, Ployethylene Wax: 0.1%-5%, tetrafluoroethylene: 0-5%, silicone oil: 0.1%-2%, grafted-organosilicon resin: 20-40%, aluminium powder: 35-45%, zinc powder: 25-30%, auxiliary agent: 2-4%, above sum is 100%;
Wherein, boron modification silicone resin is epoxide modified silicon boron resin, and preparation method is:
The mass ratio choosing epoxy resin and organic boron silicone resin is 25:100, and choosing propyl carbinol, pimelinketone and diformazan is benzene mixed solvent, and its volume ratio is 3.5:1:4.5, reacts 5h and both obtained epoxide modified silicon boron resin at 145-155 DEG C;
The preparation process of fluorinated alkyl silicon ester is: get 36 part of 28% tetraethyl silicate and drop in reactor, stir 35% silicate fluoride solution slowly dropping into 18 parts, react 4 hours in 56 DEG C of range temperature, form fluorinated alkyl silicon ester;
Composition B comprise following component by mass percentage: Rutile type Titanium Dioxide: 16 parts, film coalescence aid: 11 parts, defoamer: 0.15 part, dispersion agent, 0.4 part, anti-sudden strain of a muscle rust agent: 0.15 part, toughner: 0.5 part, wetting agent: 4 parts, 36 parts, solidifying agent, matting agent: 4 parts, thickening material: 7 parts, Natvosol: 8 parts, pH adjusting agent: 5 parts, silane coupling agent: 51 parts, compound rare-earth: 0.8 part, vapour-phase inhibitor: 32 parts, deionized water: 24 parts, thixotropic agent: 11 parts, toughner is urethane, thixotropic agent is polyamide wax, compound rare-earth comprises following composition by weight percentage: La:30-33%, Y:16-18%, Sc:13-15%, Gd:8-10%, Sm:9-11%, Pr:18-20%, each component sum is 100% above,
Heat-resisting color stuffing comprises:
Nano silicon, isolation-type functional stuffing and aluminium powder and the mass ratio of nano silicon, isolation-type functional stuffing and aluminium powder is 1.5:1:1;
Isolation-type functional stuffing comprises following component according to the mass fraction:
Hollow glass micropearl: 5 parts, graphite: 11 parts, black silicon carbide: 28 parts, fine-grained alumina: 26 parts, molybdenumdisulphide: 7 parts, zinc oxide: 3 parts, talcum powder: 4 parts;
The preparation method of this composite coating comprises the following steps:
(1) preparation of composition A: get boron modification silicone resin and auxiliary agent by mass percentage and put in dispersion cylinder and stir, stirring velocity is 450 turns/min, stirs 26min and obtains uniform pre-composition; Then get aluminium powder by mass percentage to add under whipped state in obtained pre-composition, and then add zinc powder 25-30%, adjusting rotary speed is 500 turns/min, stir 36min, finally add organosilicon acrylic resin, fluorinated alkyl silicon ester, epoxy resin, erucicamide, Ployethylene Wax, tetrafluoroethylene, silicone oil, grafted-organosilicon resin by mass percentage, rotating speed is 560 turns/min, and stir 28min, standing 26min obtains composition A;
(2) preparation of composition B: get vapour-phase inhibitor by mass percentage, deionized water drops in dispersion cylinder and carries out stirring and evenly mixing, stirring velocity is 260 turns/min, stir 25min, then under whipped state, solidifying agent is added, thixotropic agent, dispersion agent, adjusting rotary speed is 420 turns/min, stir 26min, finally add Rutile type Titanium Dioxide, film coalescence aid, defoamer, the agent of anti-sudden strain of a muscle rust, thickening material, wetting agent, solidifying agent, matting agent, toughner, Natvosol, pH adjusting agent, silane coupling agent, compound rare-earth, adjusting rotary speed is 520 turns/min, stir 26min, standing 11min obtains composition B,
(3) composition A, B and heat-resistant filler compound: composition A, composition B and heat-resistant filler are mixed solidification by weight for 1.5:1:1, obtains peel corrosion resistant type bimetal composite coating.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.
Claims (5)
1. a preparation method for peel corrosion resistant type bimetal composite coating, is characterized in that, this composite coating is made up of composition A, composition B and heat-resistant filler, and the weight ratio of described composition A, composition B and heat-resistant filler is 1.5:1:1;
Described composition A comprises following component by mass percentage: boron modification silicone resin: 45-58%, organosilicon acrylic resin: 10%-60%, fluorinated alkyl silicon ester: 3-25%, epoxy resin: 10%-60%, erucicamide: 0.5%-8%, Ployethylene Wax: 0.1%-5%, tetrafluoroethylene: 0-5%, silicone oil: 0.1%-2%, grafted-organosilicon resin: 20-40%, aluminium powder: 35-45%, zinc powder: 25-30%, auxiliary agent: 2-4%, above sum is 100%;
Wherein, boron modification silicone resin is boric acid modified silicone resin or epoxide modified silicon boron resin;
The preparation process of described fluorinated alkyl silicon ester is: get 10-60 part 28% tetraethyl silicate and drop in reactor, stir 35% silicate fluoride solution slowly dropping into 2-25 part, in 25-80 DEG C of range temperature, react 1-5 hour, form fluorinated alkyl silicon ester;
Described composition B comprises following component by mass percentage: Rutile type Titanium Dioxide: 13-25 part, film coalescence aid: 4-15 part, defoamer: 0.1-0.2 part, dispersion agent; 0.3-0.7 part, anti-sudden strain of a muscle rust agent: 0.1-0.2 part, toughner: 0.3-0.5 part, wetting agent: 2-6 part, solidifying agent 20-50 part, matting agent: 2-6 part, thickening material: 5-10 part, Natvosol: 5-10 part, pH adjusting agent: 1-5 part, silane coupling agent: 40-60 part, compound rare-earth: 0.5-1 part, vapour-phase inhibitor: 30-35 part, deionized water: 20-25 part, thixotropic agent: 10-15 part;
Described heat-resisting color stuffing comprises:
Nano silicon, isolation-type functional stuffing and aluminium powder and the mass ratio of described nano silicon, isolation-type functional stuffing and aluminium powder is 1.5:1:1;
Described isolation-type functional stuffing comprises following component according to the mass fraction:
Hollow glass micropearl: 2-6 part, graphite: 10-15 part, black silicon carbide: 20-35 part, fine-grained alumina: 25-30 part, molybdenumdisulphide: 5-10 part, zinc oxide: 1-5 part, talcum powder: 3-6 part;
The preparation method of this composite coating comprises the following steps:
(1) preparation of composition A: get boron modification silicone resin and auxiliary agent by mass percentage and put in dispersion cylinder and stir, stirring velocity is that 400-500 turns/min, stirs 20-30min and obtains uniform pre-composition; Then get aluminium powder by mass percentage to add under whipped state in obtained pre-composition, and then add zinc powder 25-30%, adjusting rotary speed is that 400-600 turns/min, stir 25-50min, finally add organosilicon acrylic resin, fluorinated alkyl silicon ester, epoxy resin, erucicamide, Ployethylene Wax, tetrafluoroethylene, silicone oil, grafted-organosilicon resin by mass percentage, rotating speed is that 400-600 turns/min, and stir 25-50min, standing 25-30min obtains composition A;
(2) preparation of composition B: get vapour-phase inhibitor by mass percentage, deionized water drops in dispersion cylinder and carries out stirring and evenly mixing, stirring velocity is that 250-300 turns/min, stir 20-30min, then under whipped state, solidifying agent is added, thixotropic agent, dispersion agent, adjusting rotary speed is that 400-450 turns/min, stir 25-30min, finally add Rutile type Titanium Dioxide, film coalescence aid, defoamer, the agent of anti-sudden strain of a muscle rust, thickening material, wetting agent, solidifying agent, matting agent, toughner, Natvosol, pH adjusting agent, silane coupling agent, compound rare-earth, adjusting rotary speed is that 500-550 turns/min, stir 25-30min, standing 10-15min obtains composition B,
(3) composition A, B and heat-resistant filler compound: composition A, composition B and heat-resistant filler are mixed solidification by weight for 1.5:1:1, obtains peel corrosion resistant type bimetal composite coating.
2. the preparation method of peel corrosion resistant type bimetal composite coating according to claim 1, is characterized in that, described toughner is the one in polymeric amide, carboxyl liquid acrylonitrile butadiene rubber, poly-nonane diacid acid anhydride or urethane.
3. the preparation method of peel corrosion resistant type bimetal composite coating according to claim 1, is characterized in that, described thixotropic agent is the one in organobentonite, aerosil, polyamide wax or modified urea solution; Described compound rare-earth comprises following composition by weight percentage: La:30-33%, Y:16-18%, Sc:13-15%, Gd:8-10%, Sm:9-11%, Pr:18-20%, and above each component sum is 100%.
4. the preparation method of peel corrosion resistant type bimetal composite coating according to claim 1, it is characterized in that, the preparation method of described boric acid modified silicone resin is:
Choose boric acid and silicone resin as reactant, the mass ratio of boric acid and silicone resin is 9.1:1, water consumption needed for silicone resin complete hydrolysis water consumption 45%, polyreaction is carried out at 80-90 DEG C, reaction times is 4h, be heated 3h subsequently at 390-410 DEG C, both obtained boric acid modified silicone resin.
5. the preparation method of peel corrosion resistant type bimetal composite coating according to claim 1, is characterized in that, the preparation method of described epoxide modified silicon boron resin is:
The mass ratio choosing epoxy resin and organic boron silicone resin is 25:100, and choosing propyl carbinol, pimelinketone and diformazan is benzene mixed solvent, and its volume ratio is 3.5:1:4.5, reacts 5h and both obtained epoxide modified silicon boron resin at 145-155 DEG C.
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| CN105314928A (en) * | 2015-12-07 | 2016-02-10 | 苏州市神龙门窗有限公司 | High-temperature-resistant oxidation-resistant roller shutter door and preparation process thereof |
| CN105670456A (en) * | 2016-01-28 | 2016-06-15 | 赵文立 | Material capable of shielding electromagnetic waves caused by groundwater |
| CN106046868A (en) * | 2016-06-06 | 2016-10-26 | 无锡伊佩克科技有限公司 | Falling-off-preventing metal coating and preparation method thereof |
| CN106193764A (en) * | 2016-07-29 | 2016-12-07 | 吴江市金康电力器材有限公司 | Steel tower and the anticorrosion treatment technology of parts thereof |
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| CN107603472A (en) * | 2017-09-30 | 2018-01-19 | 南京惠德机械有限公司 | A kind of fire resistant anticorrosive hood and preparation method thereof |
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| CN105314928A (en) * | 2015-12-07 | 2016-02-10 | 苏州市神龙门窗有限公司 | High-temperature-resistant oxidation-resistant roller shutter door and preparation process thereof |
| CN105670456A (en) * | 2016-01-28 | 2016-06-15 | 赵文立 | Material capable of shielding electromagnetic waves caused by groundwater |
| CN106046868A (en) * | 2016-06-06 | 2016-10-26 | 无锡伊佩克科技有限公司 | Falling-off-preventing metal coating and preparation method thereof |
| CN106193764A (en) * | 2016-07-29 | 2016-12-07 | 吴江市金康电力器材有限公司 | Steel tower and the anticorrosion treatment technology of parts thereof |
| CN106752136A (en) * | 2016-12-11 | 2017-05-31 | 安徽省东至县东鑫冲压件有限责任公司 | A kind of anti-dropout corrosion resistant metal coating |
| CN107043588A (en) * | 2016-12-14 | 2017-08-15 | 苏州科胜仓储物流设备有限公司 | A kind of Low-density high temperature resistant pallet and preparation method thereof |
| CN107090214A (en) * | 2017-05-05 | 2017-08-25 | 安徽省东至县东鑫冲压件有限责任公司 | A kind of metallic stamping pieces protective coating and preparation method thereof |
| CN107384136A (en) * | 2017-09-19 | 2017-11-24 | 浙江鱼童新材料股份有限公司 | Steel iron facilities antirusting paint and preparation method thereof under the conditions of one kind is maritime |
| CN107603472A (en) * | 2017-09-30 | 2018-01-19 | 南京惠德机械有限公司 | A kind of fire resistant anticorrosive hood and preparation method thereof |
| CN107629631A (en) * | 2017-10-25 | 2018-01-26 | 江苏广盛源科技发展有限公司 | A kind of wear-resistant aluminum alloy section bar steel ring material |
| CN107747640A (en) * | 2017-11-14 | 2018-03-02 | 朱建海 | A kind of high temp.-resistant valve valve rod and its handling process |
| CN108517480A (en) * | 2018-03-01 | 2018-09-11 | 中山市普利斯顿化工科技有限公司 | A kind of environment-friendly type zinc-aluminium plating solution and preparation method thereof |
| CN109054633A (en) * | 2018-07-24 | 2018-12-21 | 芜湖彰鸿工程技术有限公司 | A kind of fire-resistant anticorrosion paint and preparation method thereof |
| CN112337190A (en) * | 2020-10-19 | 2021-02-09 | 南京玻璃纤维研究设计院有限公司 | Modified filter material and preparation method thereof |
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