CN104745054A - Polyaspartic acid ester polyurea titanium alloy nanometer heavy anti-corrosion coating - Google Patents
Polyaspartic acid ester polyurea titanium alloy nanometer heavy anti-corrosion coating Download PDFInfo
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Abstract
The invention discloses a polyaspartic acid ester polyurea titanium alloy nanometer heavy anti-corrosion coating. The coating consists of a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight: 1-40 parts of PEA-1b, 1-40 parts of PEA-2b, 0-1 part of a flatting agent, 0-0.2 part of a defoaming agent, 0-30 parts of titanium dioxide, 0-8 parts of silica powder, 0-8 parts of kaolin, 0-5 parts of dimethyl benzene and 0-5 parts of butyl acetate; the component B is titanium alloy nanometer powder; the weight ratio of the component A to the component B is 2 to 1; the PEA-1b and the PEA-2b are polyaspartic acid ester polyurea type compounds. The weather resistance of the anti-corrosion coating disclosed by the invention is as follows: artificial aging: GB\T 14522-2008:2000H. The coating is free of bubbling, free of peeling off and slight in color changes after being soaked for half a year in 10% hydrochloric acid. The coating is free of bubbling, free of peeling off and normal after being soaked for 1 year in saturated brine, and is normal after being boiled for 7 days in water at the temperature of 90 DEG C.
Description
Technical field
The present invention relates to protective system technical field; particularly relate to a kind of Polyaspartic Polyurea titanium alloy nano heavy-duty coating; can be used for ocean platform; oceanographic engineering steel construction; bridge spanning the sea; coast defence concrete, ocean sluice, buoy etc. relate to weather-proof, waterproof, anticorrosion, antifouling class coating under extra large environment.
Background technology
The coating antiseptic technology of traditional metallic surface refers to by electroplate or the method such as spraying covers a coating at metal; to stop the contact of metal and corrosive medium, and the performances such as the solidity to corrosion of coating, stopping property, rust inhibition are utilized to reach the object of protection metal.
Organic coating forms primarily of filmogen, color stuffing and other auxiliary agents.Its protection mechanism is mainly divided into the following aspects:
(1) shielding effect, coating maskable falls the corrosive ion in solution or reduces the speed that it arrives metal/coating interface, slows down the time forming corrosion cell; (2) electricresistance effect, the high electrical resistance of organic coating, can stop the motion of cathode and anode region ion, the generation of slowing down corrosion product; (3) galvanic protection effect, adding in coating can as the metal powder of anode, and in corrosion process, additional metal powder can be corroded as sacrificial anode, delays the generation of matrix corrosion.
Although anti-corrosive organic coatings has passed through long-term Developing Tendency in maturation, but there are some problems and cause organic coating inefficacy after prolonged, above-mentioned three kinds of effects, realization cannot be combined in traditional coating, as zinc-rich paint, be galvanic protection effect, but coated conductive, in addition filler space is larger, cause antikathode stripping ability not strong, again in addition once form cut, just create galvanic cell, though define the little cathodic corrosion model of large anode, delay corrosion process to a certain extent, but once corrosion produces, the electroconductibility of corrosion product declines, then galvanic protection reduced capability is until disappear, and in cathodic disbonding situation, form paint blister, sticking power is lost.
Along with the development of nanotechnology in recent years, nano anticorrosive coating is subject to extensive concern, mainly refers to nanoparticle and coating compound, to promote anticorrosion with coat performance.At present, the nanoparticle for coating mainly contains metal oxide (as TiO2), inorganic salt (as CaCO3), nano metal powder (as nanometer Cr, Nd, Mo etc.) and layered silicate.In nano anticorrosive coating, due to adding of nanoparticle, reduce corrosive medium rate of diffusion in the coating and reduce the speed of corrosion process, coating impedance is comparatively large in addition, and antikathode stripping ability is strong, thus serves corrosion and effectively prevents.
Various surface treatment is adopted to be one of effective anticorrosion means.Namely isolated as far as possible with oxygen, electrolytically to contact.Wherein the corrosion protection coating of easy, effective extensive employing has the history of thousands of years.Along with the progress of science, especially Economic development brings market great demand, protective system and the fast development of heavy-duty coating experience.China reforms and opens up to the outside world, and a large amount of international top-brand enters China market, has promoted the development of China's protective system, and 2010 annual production have reached 3,000,000 tons/year.But also result in the harmful competition of market in low-level.General corrosion protection coating life-span 1-2, the short then several months.More than 5-10 heavy antisepsis brand is less.
The anticorrosion mechanism of titanium alloy nano heavy-duty coating
1, valence bond closes and chemisorption: the high reactivity dangling bonds of titanium alloy nano particle, use macromolecule resin material coordination, form chemical bonding and chemisorption, polymer closed loop is opened simultaneously, formed the hydroxyl of open loop and ehter bond further with resin formation chemical bonding and chemisorption, and form new active open loop, close and chemisorption with coated side generation valence bond, which significantly improves the bonding force of filler and interlaminar resin, also substantially improve the bonding force between molecular resin simultaneously.
2, impermeabilisation ability is strong: the filler one, in coating and define chemical bonding and chemisorption between molecular resin, blocks infiltration lane; Two, small titanium alloy nano polymer composite particle has the effect of filling hole, because titanium alloy nano polymer composite is water insoluble, water, oxygen and other ion can not through particles itself, can only to detour infiltration, to extend infiltration routes, play labyrinth effect.Titanium alloy nano polymer composite surface-area has chemical action again very greatly, just can play unusual effect on a small quantity so add.Three, titanium alloy nano polymer composite has hydrophobic nature, and common polarizable medium and ion are difficult to pass through film.
3, sticking power is high: titanium alloy nano heavy-duty coating all have excellent adhesion for metal, concrete, timber, glass etc., one because titanium alloy nano polymer composite introducing adds activity hydroxy, ehter bond quantity defines chemisorption to coated side.Its two, during selected resin solidification, volumetric shrinkage is very little, and internal stress is not high, its three, the ehter bond during tree refers to makes the soft example of molecular chain in rotation, can eliminate internal stress, so sticking power is high.
4, corrosion resistance and good: one, the destruction of general coating is all because corrosive medium carries out along the interface between molecule and filler or the interface between molecular resin, and titanium alloy nano heavy-duty coating chemical bonding and chemisorption block these passages; Its two, coating impermeabilisation ability is strong, slowing down corrosion speed; The solidity to corrosion of its Tritanium/Trititanium own is good; Its four, chemical bonding and chemisorption, stop the metalepsy of water, oxygen and other corrosive medium, make it not easily corrosion reaction occur, so corrosion resistance and good.Usual moisture gas chamber, the epoxy-based lacquers (about 150 ~ 200 μm) of brush 3 ~ 4 road particulate pigment could not corrosion, now together pure titanium alloy nano heavy-duty coating (about 50-60 μm) just can no longer corrosion for brush, also just says that one pure titanium alloy nano heavy-duty coating can represent the epoxy-based lacquers of 3-4 road particulate pigment.
Examination imagination, the titanium alloy coating of 100 μm, if by the saturated filling of nano particle, then forms the titanium alloy particle stereoscopic graticule battle array of 5000 layers of 20nm.If the face full-filling material of 2 μm then only has 50 layers.And the former is chemical bonding form, the latter is physical bond form.Can infer that " layer barrier " that 100 μm of titanium alloy nano heavy-duty coatings that aqueous solution molecule Gonna breakthrough passes through netted 5000 layers run into and path are at least the latter 100 doubly even hundreds of times more than!
Summary of the invention
The object of this invention is to provide a kind of Polyaspartic Polyurea titanium alloy nano heavy-duty coating.
The present invention adopts following technical scheme:
Polyaspartic Polyurea titanium alloy nano heavy-duty coating of the present invention is made up of component A and component B, and component A is made up of the raw material of following weight part: PEA-1b 1-40 part, PEA-2b 1-40 part, flow agent 0-1 part, defoamer 0-0.2 part, titanium dioxide 0-30 part, silicon powder 0-8 part, kaolin 0-8 part, dimethylbenzene 0-5 part, N-BUTYL ACETATE 0-5 part; Component B is titanium alloy nanometer powder; The weight ratio of component A and component B is 2:1; PEA-1b and PEA-2b is polyaspartate polyurea compounds.
Preferred component A is made up of the raw material of following weight part: PEA-1b 20 parts, PEA-2b20 part, flow agent 0.5 part, defoamer 0.1 part, titanium dioxide 15 parts, silicon powder 5 parts, kaolin 5 parts, dimethylbenzene 3 parts, N-BUTYL ACETATE 3 parts.
The synthetic method of described PEA-1b is as follows:
(1) ethyl maleate is slowly added drop-wise to fat race primary amine 4 under room temperature, in 4 '-diamino cyclohexyl-methane, both mol ratios are 1:1, and in dropping process, control temperature is no more than 60 DEG C; At 60 ~ 80 DEG C of heating 20h;
(2) addition reaction of aliphatic amide and epoxy resin: add E-51 bisphenol A type epoxy resin in the mixture of step (1), the mol ratio of epoxy resin and ethyl maleate is 0.092:1, then at 100 ~ 120 DEG C of heating 2h, be cooled to room temperature, above-mentioned building-up process is at N
2carry out under protection and agitation condition, product P EA-lb is transparent, lurid liquid.
The synthetic method of described PEA-2b is as follows:
(1) under room temperature, ethyl maleate is slowly added drop-wise to 3,3 '-dimethyl _ 4, in 4 '-aminocyclohexylmethane, both mol ratios are 1:1, and in dropping process, control temperature is no more than 60 DEG C; At 60 ~ 80 DEG C of heating 20h;
(2) addition reaction of aliphatic amide and epoxy resin: add E-51 bisphenol A type epoxy resin in the mixture of step (1), the mol ratio of epoxy resin and ethyl maleate is 0.092:1, then at 100 ~ 120 DEG C of heating 2h, be cooled to room temperature, above-mentioned building-up process is at N
2carry out under protection and agitation condition, product P EA-2b is transparent, lurid liquid.
Described flow agent is fluorin modified crylic acid ester flow agent, preferably AFCONA 3777 flow agent.
Described defoamer is Polyether Modified Polysiloxanes Defoaming Agent, preferably AFCONA 2020 defoamer.
Described titanium alloy nanometer powder weight percent composition is:
Wherein:
Described titanium alloy refer in Ti-0.3Mo-0.8Ni, Ti-15Mo, Ti-32Mo, Ti-0.15Pa, Ti-0.2Pa, Ti-2Ni, Ti-4Ni seven kinds of alloys any one;
Described grinding aid linking agent is the polymkeric substance containing unsaturated functional group;
Described tensio-active agent be polysorbas20,60,80,85 or this Pan 80,85 in one or more;
Described dispersion agent is one or more in ketone, alcohols, esters solvent and aromatic series, chlorocarbon kind solvent.
The preparation method of described titanium alloy nanometer powder is as follows:
(1) described raw material is dropped into reactor, reactor rotating speed 200-300rpm, temperature 50 C-60 DEG C, reactor 15-30 minute working time by proportioning example:
(2) reactor rotating speed is increased to and reaches more than 1000rpm, maintains this rotating speed 1.5-2.5 hour, and temperature is more than 180 DEG C, then:
(3) reactor rotating speed drops to below 300rpm, reduces temperature to 40 DEG C-50 DEG C in 0.5-1.0 hour, shuts down, namely completes the preparation of nano-powder.
Positively effect of the present invention is as follows:
Polyaspartic Polyurea titanium alloy nano heavy-duty coating weathering resistance of the present invention: temper(ing) GB T 14522-2008:2000h.It is non-foaming to soak half a year in 10% hydrochloric acid, does not peel off, light discolouration.In saturated brine soak 1 year non-foaming, do not peel off, without exception.90 degree of poach, 7 days nothing difference.
Embodiment
The following examples describe in further detail of the present invention.
Embodiment 1
Polyaspartic Polyurea titanium alloy nano heavy-duty coating of the present invention is made up of component A and component B, and component A is made up of the raw material of following weight part: PEA-1b 1 part, PEA-2b 40 parts, defoamer 0.2 part, silicon powder 0-8 part, kaolin 8 parts, N-BUTYL ACETATE 5 parts; Component B is titanium alloy nanometer powder; The weight ratio of component A and component B is 2:1; PEA-1b and PEA-2b is polyaspartate polyurea compounds.
The synthetic method of described PEA-1b is as follows:
(1) ethyl maleate is slowly added drop-wise to fat race primary amine 4 under room temperature, in 4 '-diamino cyclohexyl-methane, both mol ratios are 1:1, and in dropping process, control temperature is no more than 60 DEG C; At 60 ~ 80 DEG C of heating 20h;
(2) addition reaction of aliphatic amide and epoxy resin: add E-51 bisphenol A type epoxy resin in the mixture of step (1), the mol ratio of epoxy resin and ethyl maleate is 0.092:1, then at 100 ~ 120 DEG C of heating 2h, be cooled to room temperature, above-mentioned building-up process is at N
2carry out under protection and agitation condition, product P EA-lb is transparent, lurid liquid.
The synthetic method of described PEA-2b is as follows:
(1) under room temperature, ethyl maleate is slowly added drop-wise to 3,3 '-dimethyl _ 4, in 4 '-aminocyclohexylmethane, both mol ratios are 1:1, and in dropping process, control temperature is no more than 60 DEG C; At 60 ~ 80 DEG C of heating 20h;
(2) addition reaction of aliphatic amide and epoxy resin: add E-51 bisphenol A type epoxy resin in the mixture of step (1), the mol ratio of epoxy resin and ethyl maleate is 0.092:1, then at 100 ~ 120 DEG C of heating 2h, be cooled to room temperature, above-mentioned building-up process is at N
2carry out under protection and agitation condition, product P EA-2b is transparent, lurid liquid.
Described defoamer is AFCONA 2020 defoamer.
Described titanium alloy nanometer powder weight percent composition is:
Wherein:
Described titanium alloy refers to Ti-0.3Mo-0.8Ni alloy;
Described grinding aid linking agent is the polymkeric substance containing unsaturated functional group;
Described tensio-active agent is polysorbas20;
Described dispersion agent is ketones solvent.
The preparation method of described titanium alloy nanometer powder is as follows:
(1) described raw material is dropped into reactor, reactor rotating speed 200-300rpm, temperature 50 C-60 DEG C, reactor 15-30 minute working time by proportioning example:
(2) reactor rotating speed is increased to and reaches more than 1000rpm, maintains this rotating speed 1.5-2.5 hour, and temperature is more than 180 DEG C, then:
(3) reactor rotating speed drops to below 300rpm, reduces temperature to 40 DEG C-50 DEG C in 0.5-1.0 hour, shuts down, namely completes the preparation of nano-powder.
Embodiment 2
Polyaspartic Polyurea titanium alloy nano heavy-duty coating of the present invention is made up of component A and component B, and component A is made up of the raw material of following weight part: PEA-1b 40 parts, PEA-2b 1 part, flow agent 1 part, titanium dioxide 30 parts, kaolin 0-8 part, dimethylbenzene 5 parts; Component B is titanium alloy nanometer powder; The weight ratio of component A and component B is 2:1; PEA-1b and PEA-2b is polyaspartate polyurea compounds.
The synthetic method of described PEA-1b is as follows:
(1) ethyl maleate is slowly added drop-wise to fat race primary amine 4 under room temperature, in 4 '-diamino cyclohexyl-methane, both mol ratios are 1:1, and in dropping process, control temperature is no more than 60 DEG C; At 60 ~ 80 DEG C of heating 20h;
(2) addition reaction of aliphatic amide and epoxy resin: add E-51 bisphenol A type epoxy resin in the mixture of step (1), the mol ratio of epoxy resin and ethyl maleate is 0.092:1, then at 100 ~ 120 DEG C of heating 2h, be cooled to room temperature, above-mentioned building-up process is at N
2carry out under protection and agitation condition, product P EA-lb is transparent, lurid liquid.
The synthetic method of described PEA-2b is as follows:
(1) under room temperature, ethyl maleate is slowly added drop-wise to 3,3 '-dimethyl _ 4, in 4 '-aminocyclohexylmethane, both mol ratios are 1:1, and in dropping process, control temperature is no more than 60 DEG C; At 60 ~ 80 DEG C of heating 20h;
(2) addition reaction of aliphatic amide and epoxy resin: add E-51 bisphenol A type epoxy resin in the mixture of step (1), the mol ratio of epoxy resin and ethyl maleate is 0.092:1, then at 100 ~ 120 DEG C of heating 2h, be cooled to room temperature, above-mentioned building-up process is at N
2carry out under protection and agitation condition, product P EA-2b is transparent, lurid liquid.
Described flow agent is AFCONA 3777 flow agent.
Described titanium alloy nanometer powder weight percent composition is:
Wherein:
Described titanium alloy refers to Ti-15Mo;
Described grinding aid linking agent is the polymkeric substance containing unsaturated functional group;
Described tensio-active agent is this Pan 80;
Described dispersion agent is alcoholic solvent.
The preparation method of described titanium alloy nanometer powder is as follows:
(1) described raw material is dropped into reactor, reactor rotating speed 200-300rpm, temperature 50 C-60 DEG C, reactor 15-30 minute working time by proportioning example:
(2) reactor rotating speed is increased to and reaches more than 1000rpm, maintains this rotating speed 1.5-2.5 hour, and temperature is more than 180 DEG C, then:
(3) reactor rotating speed drops to below 300rpm, reduces temperature to 40 DEG C-50 DEG C in 0.5-1.0 hour, shuts down, namely completes the preparation of nano-powder.
Embodiment 3
Polyaspartic Polyurea titanium alloy nano heavy-duty coating of the present invention is made up of component A and component B, and component A is made up of the raw material of following weight part: PEA-1b 20 parts, PEA-2b 20 parts, flow agent 0.5 part, defoamer 0.1 part, titanium dioxide 15 parts, silicon powder 5 parts, kaolin 5 parts, dimethylbenzene 3 parts, N-BUTYL ACETATE 3 parts.Component B is titanium alloy nanometer powder; The weight ratio of component A and component B is 2:1; PEA-1b and PEA-2b is polyaspartate polyurea compounds.
The synthetic method of described PEA-1b is as follows:
(1) ethyl maleate is slowly added drop-wise to fat race primary amine 4 under room temperature, in 4 '-diamino cyclohexyl-methane, both mol ratios are 1:1, and in dropping process, control temperature is no more than 60 DEG C; At 60 ~ 80 DEG C of heating 20h;
(2) addition reaction of aliphatic amide and epoxy resin: add E-51 bisphenol A type epoxy resin in the mixture of step (1), the mol ratio of epoxy resin and ethyl maleate is 0.092:1, then at 100 ~ 120 DEG C of heating 2h, be cooled to room temperature, above-mentioned building-up process is at N
2carry out under protection and agitation condition, product P EA-lb is transparent, lurid liquid.
The synthetic method of described PEA-2b is as follows:
(1) under room temperature, ethyl maleate is slowly added drop-wise to 3,3 '-dimethyl _ 4, in 4 '-aminocyclohexylmethane, both mol ratios are 1:1, and in dropping process, control temperature is no more than 60 DEG C; At 60 ~ 80 DEG C of heating 20h;
(2) addition reaction of aliphatic amide and epoxy resin: add E-51 bisphenol A type epoxy resin in the mixture of step (1), the mol ratio of epoxy resin and ethyl maleate is 0.092:1, then at 100 ~ 120 DEG C of heating 2h, be cooled to room temperature, above-mentioned building-up process is at N
2carry out under protection and agitation condition, product P EA-2b is transparent, lurid liquid.
Described flow agent is AFCONA 3777 flow agent.
Described defoamer is AFCONA 2020 defoamer.
Described titanium alloy nanometer powder weight percent composition is:
Wherein:
Described titanium alloy is Ti-32Mo;
Described grinding aid linking agent is the polymkeric substance containing unsaturated functional group;
Described tensio-active agent is polysorbate85 and Si Pan 85;
Described dispersion agent is esters solvent and chlorocarbon kind solvent.
The preparation method of described titanium alloy nanometer powder is as follows:
(1) described raw material is dropped into reactor, reactor rotating speed 200-300rpm, temperature 50 C-60 DEG C, reactor 15-30 minute working time by proportioning example:
(2) reactor rotating speed is increased to and reaches more than 1000rpm, maintains this rotating speed 1.5-2.5 hour, and temperature is more than 180 DEG C, then:
(3) reactor rotating speed drops to below 300rpm, reduces temperature to 40 DEG C-50 DEG C in 0.5-1.0 hour, shuts down, namely completes the preparation of nano-powder.
On nano paint of the present invention and market, the performance comparison of existing zinc-rich paint is as shown in table 1.
Table 1
As can be seen from Table 1, the performance of Polyaspartic Polyurea titanium alloy nano heavy-duty coating of the present invention is obviously better than zinc-rich paint, its weathering resistance: temper(ing) GB T14522-2008:2000h.It is non-foaming to soak half a year in 10% hydrochloric acid, does not peel off, light discolouration.In saturated brine soak 1 year non-foaming, do not peel off, without exception.90 degree of poach, 7 days nothing difference.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalents thereof.
Claims (10)
1. a Polyaspartic Polyurea titanium alloy nano heavy-duty coating, it is characterized in that: described coating is made up of component A and component B, and component A is made up of the raw material of following weight part: PEA-1b 1-40 part, PEA-2b 1-40 part, flow agent 0-1 part, defoamer 0-0.2 part, titanium dioxide 0-30 part, silicon powder 0-8 part, kaolin 0-8 part, dimethylbenzene 0-5 part, N-BUTYL ACETATE 0-5 part; Component B is titanium alloy nanometer powder; The weight ratio of component A and component B is 2:1; PEA-1b and PEA-2b is polyaspartate polyurea compounds.
2. Polyaspartic Polyurea titanium alloy nano heavy-duty coating as claimed in claim 1, is characterized in that: component A is made up of the raw material of following weight part: PEA-1b 20 parts, PEA-2b 20 parts, flow agent 0.5 part, defoamer 0.1 part, titanium dioxide 15 parts, silicon powder 5 parts, kaolin 5 parts, dimethylbenzene 3 parts, N-BUTYL ACETATE 3 parts.
3. Polyaspartic Polyurea titanium alloy nano heavy-duty coating as claimed in claim 1, is characterized in that: the synthetic method of described PEA-1b is as follows:
(1) ethyl maleate is slowly added drop-wise to fat race primary amine 4 under room temperature, in 4 '-diamino cyclohexyl-methane, both mol ratios are 1:1, and in dropping process, control temperature is no more than 60 DEG C; At 60 ~ 80 DEG C of heating 20h;
(2) addition reaction of aliphatic amide and epoxy resin: add E-51 bisphenol A type epoxy resin in the mixture of step (1), the mol ratio of epoxy resin and ethyl maleate is 0.092:1, then at 100 ~ 120 DEG C of heating 2h, be cooled to room temperature, above-mentioned building-up process is at N
2carry out under protection and agitation condition, product P EA-lb is transparent, lurid liquid.
4. Polyaspartic Polyurea titanium alloy nano heavy-duty coating as claimed in claim 1, is characterized in that: the synthetic method of described PEA-2b is as follows:
(1) under room temperature, ethyl maleate is slowly added drop-wise to 3,3 '-dimethyl _ 4, in 4 '-aminocyclohexylmethane, both mol ratios are 1:1, and in dropping process, control temperature is no more than 60 DEG C; At 60 ~ 80 DEG C of heating 20h;
(2) addition reaction of aliphatic amide and epoxy resin: add E-51 bisphenol A type epoxy resin in the mixture of step (1), the mol ratio of epoxy resin and ethyl maleate is 0.092:1, then at 100 ~ 120 DEG C of heating 2h, be cooled to room temperature, above-mentioned building-up process is at N
2carry out under protection and agitation condition, product P EA-2b is transparent, lurid liquid.
5. Polyaspartic Polyurea titanium alloy nano heavy-duty coating as claimed in claim 1, is characterized in that: described flow agent is fluorin modified crylic acid ester flow agent.
6. Polyaspartic Polyurea titanium alloy nano heavy-duty coating as claimed in claim 1, is characterized in that: described flow agent is AFCONA 3777 flow agent.
7. Polyaspartic Polyurea titanium alloy nano heavy-duty coating as claimed in claim 1, is characterized in that: described defoamer is Polyether Modified Polysiloxanes Defoaming Agent.
8. Polyaspartic Polyurea titanium alloy nano heavy-duty coating as claimed in claim 1, is characterized in that: described defoamer is AFCONA 2020 defoamer.
9. Polyaspartic Polyurea titanium alloy nano heavy-duty coating as claimed in claim 1, is characterized in that: described titanium alloy nanometer powder weight percent composition is:
Wherein:
Described titanium alloy refer in Ti-0.3Mo-0.8Ni, Ti-15Mo, Ti-32Mo, Ti-0.15Pa, Ti-0.2Pa, Ti-2Ni, Ti-4Ni seven kinds of alloys any one;
Described grinding aid linking agent is the polymkeric substance containing unsaturated functional group;
Described tensio-active agent be polysorbas20,60,80,85 or this Pan 80,85 in one or more;
Described dispersion agent is one or more in ketone, alcohols, esters solvent and aromatic series, chlorocarbon kind solvent.
10. Polyaspartic Polyurea titanium alloy nano heavy-duty coating as claimed in claim 9, is characterized in that: the preparation method of described titanium alloy nanometer powder is as follows:
(1) described raw material is dropped into reactor, reactor rotating speed 200-300rpm, temperature 50 C-60 DEG C, reactor 15-30 minute working time by proportioning example:
(2) reactor rotating speed is increased to and reaches more than 1000rpm, maintains this rotating speed 1.5-2.5 hour, and temperature is more than 180 DEG C, then:
(3) reactor rotating speed drops to below 300rpm, reduces temperature to 40 DEG C-50 DEG C in 0.5-1.0 hour, shuts down, namely completes the preparation of nano-powder.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105238241A (en) * | 2015-08-20 | 2016-01-13 | 成都拜迪新材料有限公司 | Method for preparing low-VOC (Volatile Organic Compound) high-solid-content polyurea anticorrosive primer |
| CN106854428A (en) * | 2016-11-08 | 2017-06-16 | 山东非金属材料研究所 | A kind of flexible polyurea anticorrosive paint |
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