The polymer sulphoaluminate cement base Marine Antifouling Paint that a kind of nanometer of barium phosphate is modified
And preparation method thereof
Technical field
The present invention relates to marine anticorrosion coatings art, is specifically related to the polymer sulphur aluminic acid that a kind of nanometer of barium phosphate is modified
Salt cement base Marine Antifouling Paint and preparation method thereof.
Background technology
Ocean covers the area of the earth 4/5, and China possesses more than 300 ten thousand square kilometres of marine sites.Exploitation marine resources can have
Alleviate the present situation of current resource scarcity in effect ground.Seawater is that quantity is maximum in nature and has the natural electrolysis of very severe corrosive
Matter, the compound in seawater almost containing all chemical elements on the earth, composition are extremely complex.In addition, also contain in seawater
There are dissolved oxygen, marine organisms and spoilage organism etc..These materials are to all kinds of marine vehicles, production platform, oceanographic equipment
Very big harm is caused Deng hardware, and with the development of the transport of various countries' coastal traffic, industrial production and national defense construction, seawater
Threat with sea atmosphere corrosion also shows more and more prominent, is more applicable at present and economic ocean engineering means of defence is
Coat the Marine Paints of anti-seawater corrosion.
Marine Paints because it is simple and convenient the characteristics of, be always marine anticorrosion erosion the most widely used method in field.It is existing
Polymer sulphoaluminate cement base Marine Antifouling Paint due to its erosion performance of resistance to sulfate it is poor, interface binding intensity deficiency,
Its weather-proof, resisting sea water erosion and scour resistance are poor.
The content of the invention
The invention provides the polymer sulphoaluminate cement base Marine Antifouling Paint that a kind of nanometer of barium phosphate is modified.
The system for the polymer sulphoaluminate cement base Marine Antifouling Paint being modified present invention also offers this nanometer of barium phosphate
Preparation Method.
In order to achieve the above object, the technical solution adopted by the present invention is as follows:
The polymer sulphoaluminate cement base Marine Antifouling Paint that a kind of nanometer of barium phosphate is modified, is by the raw material of following parts by weight
It is obtained:Sulphate aluminium cement 60-80 parts, flyash 20-40 parts, silica 20-30 parts, silicone-modified polyacrylate
Emulsion 40-80 parts, water 20-40 parts, water reducer 1-5 parts, defoamer 0.5-2 parts, dispersant 1-3 parts, coalescents 1-5 parts.
Described, cement is the sulphate aluminium cement of early-strong-fast-hard 42.5;The water reducer is polycarboxylic acids dehydragent;It is described
Dispersant is calgon;The coalescents are 2,2,4- trimethyl -1,3- pentanediol list isobutyric acid fat;The defoamer
For organic silicon defoamer.
The preparation method for the polymer sulphoaluminate cement base Marine Antifouling Paint that a kind of nanometer of barium phosphate is modified, be by with
Made from lower step:
1)The preparation of the barium phosphate of nanometer containing vinyl:
It is 0.2mol/L barium nitrates solution and cetyl trimethylammonium bromide magnetic agitation 30min by concentration;Adding concentration is
0.5mol/L trisodium phosphate solution, magnetic agitation 2h under the conditions of 40-50 DEG C;Silane coupler is added, magnetic agitation 2h, is obtained
Emulsion;Emulsion is moved in ptfe autoclave, 12h is reacted under the conditions of 180 DEG C, is naturally cooled to after the completion of reaction
Room temperature, 24h is dried under the conditions of washing filtering 3 times, 50 DEG C, obtains the barium phosphate of nanometer containing vinyl;
2)The preparation of modified acrylate emulsion:
In parts by weight, dissolving is stirred at room temperature in 0.5-5 parts emulsifying agent, 40-100 parts deionized water and 2-5 part sodium acid carbonates, added
Enter 40-70 part acrylic monomers, stir 30min under the conditions of 200rpm, obtain pre-emulsification emulsion;By 0.5-5 parts emulsifying agent, 10-
50 parts of deionized waters and 1-5 parts nanometer containing vinyl barium phosphate mix 20min, ultrasonic disperse 30min, heating water bath to 70
DEG C, 0.1-5 parts initiator and 60-80 part pre-emulsification emulsions is added dropwise, controls and is added dropwise in 3h;When pre-emulsification emulsion is remaining three points
A period of time simultaneously 5-20 part organic silicon monomers are added dropwise, be incubated 2h after being all added dropwise, be cooled to room temperature, filtering and discharging, ammoniacal liquor
PH value is adjusted to 7-8, obtains modified acrylate emulsion;
3)The preparation for the polymer sulphoaluminate cement base Marine Antifouling Paint that nanometer barium phosphate is modified:
Sulphate aluminium cement, flyash and silica are mixed into 3-5min, obtain mixed-powder;By organic-silicon-modified poly- third
Olefin(e) acid ester emulsion and water mix 2-3min, add mixed-powder, water reducer, defoamer, dispersant and coalescents, stirring
3-5min, 3min is stood, obtain the polymer sulphoaluminate cement base Marine Antifouling Paint that nanometer barium phosphate is modified.
Described, the parts by weight of each raw material are in the preparation of the barium phosphate of nanometer containing vinyl:Barium nitrate solution 30-60 parts,
Cetyl trimethylammonium bromide 1-5 parts, trisodium phosphate solution 20-50 parts, silane coupler 0.5-5 parts.
Described, silane coupler is vinyltrimethoxy silane or VTES.
Described, emulsifying agent is lauryl sodium sulfate or neopelex.
Described, initiator is ammonium persulfate or potassium peroxydisulfate.
Described, acrylic monomer is according to 0.8-1.2 by methyl methacrylate and butyl acrylate:1 weight
Than obtained.
Described, organic silicon monomer is tetraethyl orthosilicate or γ-(methacryloxypropyl) propyl trimethoxy silicane.
The application method for the polymer sulphoaluminate cement base Marine Antifouling Paint that nanometer barium phosphate of the present invention is modified is:Will
The polymer sulphoaluminate cement base Marine Antifouling Paint brushing or be sprayed on matrix, thickness 0.1- that nanometer barium phosphate is modified
Second is carried out after 0.3mm, 2-5h to brush or spray, gross thickness to 0.2-0.5mm.
The present invention utilizes the silane coupler modified nanometer Ba containing vinyl3(PO4)2, make its surface phosphorus of nanometer containing vinyl
Sour barium is copolymerized with acrylic monomers, is grafted on acrylic acid, is avoided reunion.Nanometer Ba3(PO4)2The Ba decomposited2+With sea
SO in water4 2-React generation BaSO4Precipitation, solidify the SO penetrated into coating4 2-, improve the porosity of coating, make painting
Layer is solid wear-resisting, has more preferable waterproof anti-corrosion performance.The barium phosphate of nanometer containing vinyl is sheet-like morphology, is stacked in coating,
Moisture can be cut off into pore in coating, block corrosive medium to enter the path, shield water, oxygen and ion etc. of coating and corrode
The transmission of material.Ba in the barium phosphate of nanometer containing vinyl3(PO4)2Generation Ca can be reacted with hydrolysis product of cement3(PO4)2,
Prevent particle aggregation from luming, increase the mobility of coating;As inorganic particle, the movement of molecule on polymer chain can be suppressed;
The aquation of sulfuric acid acid salt cement can be promoted, reduce the porosity of coat inside, improve coating water-tight corrosion-proof impermeability.
The present invention produces the larger hydrophobic group-Si of steric hindrance by organic silicon monomer modified acrylic acid emulsion
(OCH3), make coating that both there is the excellent weatherability of acrylic acid, matrix adhesive force, there is the good erosion resistant of organosilicon, waterproof again
Performance, the advantages of having two kinds of emulsions concurrently.In synthetic emulsion, the barium phosphate of nanometer containing vinyl is added, is significantly improved and acrylic acid
The compatibility of class monomer, avoid the reunion of the barium phosphate of nanometer containing vinyl.Nanometer containing vinyl in modified acrylate emulsion
Barium phosphate, not only coating can be cut off by the laminated structure of itself in polymer sulphoaluminate cement base Marine Antifouling Paint
Pore, block corrosive medium to penetrate into the path of coating, increase the closure of coating, and the barium phosphate of nanometer containing vinyl can be with
Solidify to entering the sulfate ion in coating, volume microdilatancy, more closely knit coating microstructure.Further, contain
Vinyl nanometer barium phosphate and sulphate aluminium cement are used in combination, it is suppressed that the movement of molecule on polymer chain, phosphate radical can be with
Generation complex compound is reacted with sulphate aluminium cement hydrated product, closely knit internal layer coating, improves tensile strength, the adhesive strength of coating
And antiseptic property.The polymer sulphoaluminate cement base Marine Antifouling Paint that the nanometer barium phosphate of the present invention is modified has excellent
Tensile strength, impermeability, adhesion strength and antiseptic property, there is wide application space.
Embodiment
With reference to specific embodiment, the present invention will be further described.
Organic silicon defoamer used in the present invention is Foamastar MO 2190AC defoamers.
Embodiment 1
The polymer sulphoaluminate cement base Marine Antifouling Paint that a kind of nanometer of barium phosphate is modified, is by the raw material of following parts by weight
It is obtained:60 parts of sulphate aluminium cement, 40 parts of flyash, 20 parts of silica, 80 parts of silicone-modified polyacrylate emulsion,
20 parts of water, 1 part of water reducer, 0.5 part of defoamer, 3 parts of dispersant, 1 part of coalescents.
Described, cement is the sulphate aluminium cement of early-strong-fast-hard 42.5;The water reducer is polycarboxylic acids dehydragent;It is described
Dispersant is calgon;The coalescents are 2,2,4- trimethyl -1,3- pentanediol list isobutyric acid fat;The defoamer
For organic silicon defoamer.
The preparation method for the polymer sulphoaluminate cement base Marine Antifouling Paint that a kind of nanometer of barium phosphate is modified, be by with
Made from lower step:
1)The preparation of the barium phosphate of nanometer containing vinyl:
It is 0.2mol/L barium nitrates solution and cetyl trimethylammonium bromide magnetic agitation 30min by concentration;Adding concentration is
0.5mol/L trisodium phosphate solution, magnetic agitation 2h under the conditions of 40-50 DEG C;Silane coupler is added, magnetic agitation 2h, is obtained
Emulsion;Emulsion is moved in ptfe autoclave, 12h is reacted under the conditions of 180 DEG C, is naturally cooled to after the completion of reaction
Room temperature, 24h is dried under the conditions of washing filtering 3 times, 50 DEG C, obtains the barium phosphate of nanometer containing vinyl;
2)The preparation of modified acrylate emulsion:
In parts by weight, dissolving is stirred at room temperature in 0.5 part of emulsifying agent, 40 parts of deionized waters and 5 parts of sodium acid carbonates, adds 70 part third
Alkene acrylic monomer, 30min is stirred under the conditions of 200rpm, obtains pre-emulsification emulsion;By 0.5 part of emulsifying agent, 50 parts of deionized waters and 1 part
The barium phosphate of nanometer containing vinyl mixes 20min, ultrasonic disperse 30min, heating water bath to 70 DEG C, be added dropwise 5 parts of initiators and
60 parts of pre-emulsification emulsions, control and be added dropwise in 3h;20 parts of organosilicons are added dropwise simultaneously as pre-emulsification emulsion residue 1/3rd
Monomer, 2h is incubated after being all added dropwise, is cooled to room temperature, filtering and discharging, ammoniacal liquor adjusts pH value to 7-8, obtains modified acroleic acid
Ester emulsion;
3)The preparation for the polymer sulphoaluminate cement base Marine Antifouling Paint that nanometer barium phosphate is modified:
Sulphate aluminium cement, flyash and silica are mixed into 3min, obtain mixed-powder;By organic-silicon-modified polypropylene
Acid esters emulsion and water mix 2min, add mixed-powder, water reducer, defoamer, dispersant and coalescents, stirring
5min, 3min is stood, obtain the polymer sulphoaluminate cement base Marine Antifouling Paint that nanometer barium phosphate is modified.
Described, the parts by weight of each raw material are in the preparation of the barium phosphate of nanometer containing vinyl:30 parts of barium nitrate solution, 16
5 parts of alkyl trimethyl ammonium bromide, 50 parts of trisodium phosphate solution, 0.5 part of silane coupler.
Described, silane coupler is vinyltrimethoxy silane.
Described, emulsifying agent is neopelex.
Described, initiator is ammonium persulfate.
Described, acrylic monomer is according to 0.8 by methyl methacrylate and butyl acrylate:1 weight is than system
.
Described, organic silicon monomer is tetraethyl orthosilicate.
Embodiment 2
The polymer sulphoaluminate cement base Marine Antifouling Paint that a kind of nanometer of barium phosphate is modified, is by the raw material of following parts by weight
It is obtained:70 parts of sulphate aluminium cement, 30 parts of flyash, 25 parts of silica, 60 parts of silicone-modified polyacrylate emulsion,
30 parts of water, 3 parts of water reducer, 1 part of defoamer, 2 parts of dispersant, 3 parts of coalescents.
Described, cement is the sulphate aluminium cement of early-strong-fast-hard 42.5;The water reducer is polycarboxylic acids dehydragent;It is described
Dispersant is calgon;The coalescents are 2,2,4- trimethyl -1,3- pentanediol list isobutyric acid fat;The defoamer
For organic silicon defoamer.
The preparation method for the polymer sulphoaluminate cement base Marine Antifouling Paint that a kind of nanometer of barium phosphate is modified, be by with
Made from lower step:
1)The preparation of the barium phosphate of nanometer containing vinyl:
It is 0.2mol/L barium nitrates solution and cetyl trimethylammonium bromide magnetic agitation 30min by concentration;Adding concentration is
0.5mol/L trisodium phosphate solution, magnetic agitation 2h under the conditions of 40-50 DEG C;Silane coupler is added, magnetic agitation 2h, is obtained
Emulsion;Emulsion is moved in ptfe autoclave, 12h is reacted under the conditions of 180 DEG C, is naturally cooled to after the completion of reaction
Room temperature, 24h is dried under the conditions of washing filtering 3 times, 50 DEG C, obtains the barium phosphate of nanometer containing vinyl;
2)The preparation of modified acrylate emulsion:
In parts by weight, dissolving is stirred at room temperature in 3 parts of emulsifying agents, 70 parts of deionized waters and 4 parts of sodium acid carbonates, adds 50 parts of propylene
Acrylic monomer, 30min is stirred under the conditions of 200rpm, obtains pre-emulsification emulsion;3 parts of emulsifying agents, 30 parts of deionized waters and 3 parts are contained into second
Alkenyl nanometer barium phosphate mixes 20min, ultrasonic disperse 30min, and 3 parts of initiators and 70 parts are added dropwise to 70 DEG C in heating water bath
Pre-emulsification emulsion, control and be added dropwise in 3h;10 parts of organic silicon monomers are added dropwise simultaneously as pre-emulsification emulsion residue 1/3rd,
2h is incubated after being all added dropwise, is cooled to room temperature, filtering and discharging, ammoniacal liquor adjusts pH value to 7-8, obtains modification acrylate breast
Liquid;
3)The preparation for the polymer sulphoaluminate cement base Marine Antifouling Paint that nanometer barium phosphate is modified:
Sulphate aluminium cement, flyash and silica are mixed into 4min, obtain mixed-powder;By organic-silicon-modified polypropylene
Acid esters emulsion and water mix 3min, add mixed-powder, water reducer, defoamer, dispersant and coalescents, stirring
4min, 3min is stood, obtain the polymer sulphoaluminate cement base Marine Antifouling Paint that nanometer barium phosphate is modified.
Described, the parts by weight of each raw material are in the preparation of the barium phosphate of nanometer containing vinyl:45 parts of barium nitrate solution, 16
3 parts of alkyl trimethyl ammonium bromide, 30 parts of trisodium phosphate solution, 3 parts of silane coupler.
Described, silane coupler is VTES.
Described, emulsifying agent is neopelex.
Described, initiator is potassium peroxydisulfate.
Described, acrylic monomer is according to 1 by methyl methacrylate and butyl acrylate:1 weight is than being made
's.
Described, organic silicon monomer is γ-(methacryloxypropyl) propyl trimethoxy silicane.
Embodiment 3
The polymer sulphoaluminate cement base Marine Antifouling Paint that a kind of nanometer of barium phosphate is modified, is by the raw material of following parts by weight
It is obtained:80 parts of sulphate aluminium cement, 20 parts of flyash, 30 parts of silica, 40 parts of silicone-modified polyacrylate emulsion,
40 parts of water, 5 parts of water reducer, 2 parts of defoamer, 1 part of dispersant, 5 parts of coalescents.
Described, cement is the sulphate aluminium cement of early-strong-fast-hard 42.5;The water reducer is polycarboxylic acids dehydragent;It is described
Dispersant is calgon;The coalescents are 2,2,4- trimethyl -1,3- pentanediol list isobutyric acid fat;The defoamer
For organic silicon defoamer.
The preparation method for the polymer sulphoaluminate cement base Marine Antifouling Paint that a kind of nanometer of barium phosphate is modified, be by with
Made from lower step:
1)The preparation of the barium phosphate of nanometer containing vinyl:
It is 0.2mol/L barium nitrates solution and cetyl trimethylammonium bromide magnetic agitation 30min by concentration;Adding concentration is
0.5mol/L trisodium phosphate solution, magnetic agitation 2h under the conditions of 40-50 DEG C;Silane coupler is added, magnetic agitation 2h, is obtained
Emulsion;Emulsion is moved in ptfe autoclave, 12h is reacted under the conditions of 180 DEG C, is naturally cooled to after the completion of reaction
Room temperature, 24h is dried under the conditions of washing filtering 3 times, 50 DEG C, obtains the barium phosphate of nanometer containing vinyl;
2)The preparation of modified acrylate emulsion:
In parts by weight, dissolving is stirred at room temperature in 5 parts of emulsifying agents, 100 parts of deionized waters and 2 parts of sodium acid carbonates, adds 40 part third
Alkene acrylic monomer, 30min is stirred under the conditions of 200rpm, obtains pre-emulsification emulsion;5 parts of emulsifying agents, 10 parts of deionized waters and 5 parts are contained
Vinyl nanometer barium phosphate mixes 20min, ultrasonic disperse 30min, heating water bath to 70 DEG C, be added dropwise 0.1 part of initiator and
80 parts of pre-emulsification emulsions, control and be added dropwise in 3h;5 parts of organosilicon lists are added dropwise simultaneously as pre-emulsification emulsion residue 1/3rd
Body, 2h is incubated after being all added dropwise, is cooled to room temperature, filtering and discharging, ammoniacal liquor adjusts pH value to 7-8, obtains modification acrylate
Emulsion;
3)The preparation for the polymer sulphoaluminate cement base Marine Antifouling Paint that nanometer barium phosphate is modified:
Sulphate aluminium cement, flyash and silica are mixed into 5min, obtain mixed-powder;By organic-silicon-modified polypropylene
Acid esters emulsion and water mix 2min, add mixed-powder, water reducer, defoamer, dispersant and coalescents, stirring
3min, 3min is stood, obtain the polymer sulphoaluminate cement base Marine Antifouling Paint that nanometer barium phosphate is modified.
Described, the parts by weight of each raw material are in the preparation of the barium phosphate of nanometer containing vinyl:60 parts of barium nitrate solution, 16
Alkyl trimethyl ammonium bromide 1- parts, 20 parts of trisodium phosphate solution, 5 parts of silane coupler.
Described, silane coupler is vinyltrimethoxy silane.
Described, emulsifying agent is lauryl sodium sulfate.
Described, initiator is ammonium persulfate.
Described, acrylic monomer is according to 1.2 by methyl methacrylate and butyl acrylate:1 weight is than system
.
Described, organic silicon monomer is tetraethyl orthosilicate.
Comparative example
A kind of polymer sulphoaluminate cement base Marine Antifouling Paint, it is as made from the raw material of following parts by weight:Aluminium sulfate
60 parts of cement, 40 parts of flyash, 20 parts of silica, 80 parts of modified polyacrylate emulsion, 20 parts of water, 1 part of water reducer, defoaming
0.5 part of agent, 3 parts of dispersant, 1 part of coalescents.
A kind of preparation method of polymer sulphoaluminate cement base Marine Antifouling Paint, is as made from following steps:
1)The preparation of modified polyacrylate emulsion:
In parts by weight, dissolving is stirred at room temperature in 0.5 part of emulsifying agent, 40 parts of deionized waters and 5 parts of sodium acid carbonates, adds 70 part third
Alkene acrylic monomer, 30min is stirred under the conditions of 200rpm, obtains pre-emulsification emulsion;0.5 part of emulsifying agent and 50 parts of deionized waters are mixed
20min, ultrasonic disperse 30min are stirred, heating water bath is added dropwise 5 parts of initiators and 60 parts of pre-emulsification emulsions to 70 DEG C, controlled in 3h
It is added dropwise;20 parts of organic silicon monomers are added dropwise simultaneously as pre-emulsification emulsion residue 1/3rd, are incubated after being all added dropwise
2h, is cooled to room temperature, filtering and discharging, and ammoniacal liquor adjusts pH value to 7-8, obtains modified polyacrylate emulsion;
2)The preparation of polymer sulphoaluminate cement base Marine Antifouling Paint:
Sulphate aluminium cement, flyash and silica are mixed into 3min, obtain mixed-powder;By modified polyacrylate breast
Liquid and water mix 2min, add mixed-powder, water reducer, defoamer, dispersant and coalescents, stir 5min, stand
3min, obtain polymer sulphoaluminate cement base Marine Antifouling Paint.
Remaining is the same as embodiment 1.
Performance test
The polymer sulphoaluminate cement base Marine Antifouling Paint prepared to embodiment 1-3 and comparative example is according to GB/T23445-
2009《Polymer cement waterproof paint》Properties test is carried out, as a result as shown in table 1.
Solid content is tested:Polymer sulphoaluminate cement base Marine Antifouling Paint is weighed, is placed in 50 ± 2 DEG C of drying bakers and puts
48h is put, the ratio of the quality before quality and placement after placement is the polymer sulphoaluminate cement base Marine Antifouling Paint
Solids content.
Tensile strength and elongation at break:The polymer sulphoaluminate cement base Marine Antifouling Paint being stirred is coated to
In defined mould, 96h is stood under standard conditions, is then stripped.Sample after the demoulding is handled in (40 ± 2) DEG C drying box
48h, it is cooled to room temperature.Dumbbell shaped is cut into slicer, test block tensile property is tested with universal testing machine, and calculates the disconnected of sample
Split elongation.
Adhesion strength:Polymer sulphoaluminate cement base Marine Antifouling Paint is tried coated in (70 × 70 × 20mm) mortar
Block surface, 4d is conserved under room temperature condition, test block is put into 40 DEG C of drying box after 4d and dries 2d, its surface is completely dried then
Take out, be 1 with epoxy resin and acetone ratio after putting 4h again at ambient temperature:1 is mixed to form adhesivity liquid, with the glue
Viscous liquid affixes that drawing block is firm to be placed on test block center, and drawing block is bonded to the center of test block, is put into 40 DEG C of drying box
After drying 2d, take out, put 4h at ambient temperature, carry out adhesion strength test.
It is impervious:The polymer sulphoaluminate cement base Marine Antifouling Paint prepared is coated in 40 × 40 × 160mm
On mortar specimen, it is placed in cement standard curing box and conserves 168h.Test block is taken out, is put into after dry tack free in permeameter, water
Pressure increases to 0.3MPa since 0.2MPa after constant pressure 2h, later per 0.1MPa is increased every other hour, until test specimen is permeable.When anti-
Ooze after test specimen is forced into 1.5MPa constant pressures 1h that test specimen is also waterproof, should stop testing.
Sulfur resistive acid attack:Prepare two groups of tensile strength samples, one group is put into 20 DEG C of aqueous solution, and another group is put into and configures
Sulfate liquor in, conserve 7d, carry out tension test, calculate COEFFICIENT K=R against corrosionLiquid/RWater。
The polymer cement waterproof paint the performance test results of table 1
Polymer sulphoaluminate cement base Marine Antifouling Paint prepared by embodiment 1-3 and comparative example is according to JTJ275-2000
《Concrete for marine works structural anticorrosion loses technical specification》Appearance of coat test is carried out, as a result as shown in table 2.
The appearance of coat test result of table 2
On the embodiment of the present invention is described, but the present invention is not limited to above description.For this area
For technical staff, any polymer sulphoaluminate cement base Marine Antifouling Paint being modified to a kind of nanometer of barium phosphate and its system
The equal modification and replacement that Preparation Method is carried out all are within the scope of the invention.Therefore, do not depart from the present invention spirit and
The impartial conversion made under scope and modification, all should be contained within the scope of the invention.