CN105331220A - Compound-type metal roof thermal-insulation waterproof coating and preparing method thereof - Google Patents
Compound-type metal roof thermal-insulation waterproof coating and preparing method thereof Download PDFInfo
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Abstract
The invention relates to a compound-type metal roof thermal-insulation waterproof coating and a preparing method thereof. The compound-type metal roof thermal-insulation waterproof coating is composed of a surface layer coating and a base layer coating. The surface layer coating is prepared from water, dispersing agents, antifoaming agents, pigment, hollow glass beads, inorganic-thixotropy thickening agents, inorganic filler, silicone-modification acrylic emulsion, acrylic emulsion, film forming assistants, pH value regulation agents, thickening agents and antifreeze agents; the base layer coating is prepared from water, dispersing agents, antifoaming agents, pigment, heat-conducting functional filler, inorganic-thixotropy thickening agents, inorganic filler, acrylic emulsion, pH value regulation agents, thickening agents and antifreeze agents. Compared with the prior art, the problems that bonding of a present waterproof material and a metal base material is not firm, aging is prone to occurrence and the service life is limited are solved, and the compound-type metal roof thermal-insulation waterproof coating has the advantage of integrating water proofing, protection, rust protection and thermal insulation.
Description
Technical field
The present invention relates to heat-insulating waterproof coating and preparation method thereof, especially relate to a kind of composite metal roof insulation waterproof paint and preparation method thereof.
Background technology
Along with China's rapid development of economy, steel building, due to advantages such as it are high from heavy and light, intensity, factory's prepackage degree is high, it is convenient to construct, overall economic efficiency is remarkable, is widely used in the heavy constructions such as plant floor, logistics warehouse, physical culture place.
Steel construction, as an important component part very important in buildings, under advocating the overall situation of energy-saving and emission-reduction now in the whole society, carries out meaning that is heat insulation and waterproof to steel construction metal Roof particularly important effectively.The material characteristic of steel construction metal Roof own and rust corrodes water clock reason, the selection and the construction technology that determine process waterproof problem have certain singularity.Such as: water-proof material has uvioresistant, ageing-resistant, cementability is strong, elastomeric characteristic; Waterproof construction must have good heat-proof quality; Select materials must reach " feature of environmental protection " and require.
In the method for current use, there are SBS coiled material, JS polymer cement waterproof paint, weather-proof silicone adhesive, polyurethane water-proof paint etc., the anti-ultraviolet property of these conventional waterproof materials is poor, cementability is low, easily aging, water-proof function keeps the time limit short, and determining it can not be used for outdoor, is more not suitable for the waterproof problem processing Lightweight Steel Construction metal Roof.
Water-proof acrylic acid paint is as building water-proof paint, and its weathering resistance is poor, and light stability is poor, and water resistance is poor, does not have effectively heat insulation, heat radiation composition, cannot meet the insulating water-proof of metal Roof, the requirement of heat dissipation, energy conservation.
Chinese patent CN102993831A discloses a kind of Metal roof heat-insulation waterproof paint, comprises the component of following weight proportion: water 5-10 part, dispersion agent 0.5-1.5 part, defoamer 0.2-1 part, waterproofing agent of organosilicon 0.1-1 part, pigment 5-15 part, ultra-fine barium sulfate 5-10 part, hollow glass micropearl 5-10 part, mineral filler 20-25 part, Neoprene latex 25-45 part, pH value regulator 0.05 ~ 0.1 part, thickening material 0.02 ~ 0.05 part.But do not relate to the functional stuffing of heat conductivility in this patent, coating is shaping to be exposed to the open air when being heated for a long time, except by except the energy that reflects, a large amount of absorbed heat can not get distributing timely at coat inside and puts aside, and directly affects bonding and the life-span of self of coating and basic unit.
Summary of the invention
Object of the present invention is exactly provide a kind of to solve current water-proof material and metal base bonds loosely, the problem of easy aging, restricted lifetime to overcome defect that above-mentioned prior art exists, accomplishes the composite metal roof insulation waterproof paint and preparation method thereof of waterproof, protection, antirust, heat-insulation integrative.
Object of the present invention can be achieved through the following technical solutions:
A kind of composite metal roof insulation waterproof paint, is made up of investment precoat and base layer dope,
The raw material of described investment precoat comprises the component of following weight part content: water 5-10, dispersion agent 0.5-1.5, defoamer 0.2-1, pigment 5-15, hollow glass micropearl 5-10, inorganic thixotropic thickening agent 5-10, mineral filler 20-25, fluorine-silicon modified acrylic emulsion 5-43, ACRYLIC EMULSION 28-43, film coalescence aid 0.5-1, pH value regulator 0.05-0.1, thickening material 0.02-0.05, antifreezing agent 0.5-1;
The raw material of described base layer dope comprises the component of following weight part content: water 5-10, dispersion agent 0.5-1.5, defoamer 0.2-1, pigment 5-10, heat conduction functional stuffing 18-27, inorganic thixotropic thickening agent 5-10, mineral filler 8-12, fluorine-silicon modified acrylic emulsion 5-40, ACRYLIC EMULSION 25-40, pH value regulator 0.05-0.1, thickening material 0.02-0.05, antifreezing agent 0.5-1.
In addition, base layer dope also comprises the component of following weight part content: antiager 0.1-1, flow agent 0.15-1, sterilant 0.2-1.
Described dispersion agent is anionic dispersing agent.
Described defoamer is non-ionic type defoamer.
Described inorganic thixotropic thickening agent is one or more of attapulgite, organobentonite or calcined kaolin.
Described pigment is Rutile type Titanium Dioxide.
Described mineral filler is one or more in quartz sand, calcium carbonate or talcum powder.
Described pH value regulator is organic amine pH value regulator.
Described antifreezing agent is alcohols antifreezing agent.
Described thickening material is one or more in Natvosol, methylcellulose gum, carboxymethyl cellulose.
Described film coalescence aid is ester alcohols film coalescence aid.
Described heat conduction functional stuffing is one or more in aluminum oxide, magnesium oxide, zinc oxide, aluminium nitride, boron nitride or silicon carbide.
Described hollow glass micropearl is high strength hollow glass micropearl, and main component is silicon-dioxide.
Described fluorine-silicon modified acrylic emulsion is the silicone based acrylic resin modified emulsion for main body, utilize the organosilane monomer γ-methacryloxypropyl trimethoxy silane containing double bond and the copolymerization of vinylformic acid (ester) monomer radical, carry out modification to acrylic resin, silicone content is 8-10wt%.
The second-order transition temperature of described ACRYLIC EMULSION is between-10 DEG C to-40 DEG C.
The preparation method of composite metal roof insulation waterproof paint, comprises the preparation of investment precoat and preparation two steps of base layer dope,
Time prepared by investment precoat, at normal temperatures and pressures by dispersion agent, defoamer, pigment, be dissolved in formula ratio 40%-70% massfraction water in mix, add inorganic thixotropic thickening agent, mineral filler, ACRYLIC EMULSION, film coalescence aid stir, then ACRYLIC EMULSION, pH value regulator is added, thickening material, mixes and finally adds hollow glass micropearl and remaining water stirs; Whole dispersion process stirrer rotating speed is at 600 ~ 1200r/min.
Time prepared by base layer dope, at normal temperatures and pressures dispersion agent, defoamer, pigment, heat conduction functional stuffing are dissolved in the water of formula ratio 40%-70% massfraction and mix, add inorganic thixotropic thickening agent, mineral filler, ACRYLIC EMULSION, film coalescence aid stir, then ACRYLIC EMULSION, pH value regulator is added, thickening material, mixes and finally adds remaining water and stir.Whole dispersion process stirrer rotating speed is at 600 ~ 1200r/min.
Compared with prior art, the present invention's first brushing base layer dope on metal Roof in use, brushing surface coating again after to be dried, forms composite metal roof insulation waterproof paint.Top layer thermal insulating coating reflected sunlight reduction roofing is endergonic while, even heat is transmitted to metal Roof top layer by basic unit's heat radiation coating effectively, and make roofing temperature keep lower level, whole system have employed 2 kinds of formula systems.Investment precoat have employed the formula system design of high reverse--bias, and the sunlight reflectivity of investment precoat and hemispherical emissivity are all higher than 0.8, and effect of heat insulation is obvious, and maximum temperature difference reaches more than 13 DEG C; Base layer dope have employed the formula system design of quick heat radiating, the heat transfer efficiency of base layer dope is higher than conventional acrylic waterproof paint, in time the heat of surface layer Assimilation and conductivity can be spread in time equably in building basic unit, thus reduce the temperature of Bulk coat, improve the work-ing life of coating.These two kinds of formula system designs, while the high sunlight reflectivity of guarantee, high hemispherical emissivity, effectively can improve the work-ing life of coating, have the following advantages:
1. add rutile titanium white powder, coating is had sun-resistant, do not ftracture, nondiscoloration etc. is good anti-ly tans by the sun performance.It has good chemical stability.
2. surface layer thermal insulating coating adds hollow glass micropearl, it has the advantages such as the high and good chemical stability of light weight, low heat conduction, intensity, the filler of other reflected infrareies in coating and hot visible ray (solar ray produces the major portion of heat) is combined, and makes coating reach heat-insulating and energy-saving performance.
3. basic unit's heat radiation coating adds one or more mixture of aluminum oxide, magnesium oxide, zinc oxide, silicon carbide etc., its stable performance, thermal conductivity is high, can by surface coating material absorb even heat be transmitted to metal Roof basic unit, make surface coating material keep the state that temperature is lower always.Temperature, the temperature difference of whole coating protecting system and metal Roof are consistent, and make coating keep synchronous with the cold and hot deformation of metal Roof, thus reduce the phenomenon of coating local hollowing or peeling.Directly enhance the volume life-span of coating.
4. in formula, all emulsions, filler, auxiliary agent have without any the harmful substances that exceeds standard, and ensure that its environmental protection, security.
5. the rutile titanium dioxide that the novel organosilicon modified acrylic acid emulsion adopted, the functional stuffing of excellent thermal conductivity, UV resistant performance and reflection potential are extremely strong, substantially increases the ageing resistance of whole coating, heat dispersion, effect of heat insulation.Why adopting organosilicon-modified acrylic emulsion, is because organosilicon polymer has excellent weathering resistance, contamination resistance and resistant of high or low temperature, the hydrophobicity of height, good water-permeable.Acrylic resin has excellent adhesivity and good mechanical property, chemical stability, but to temperature very deeply grateful and water tolerance and contamination resistance poor.Therefore utilize organosilicon modified crylic acid resin, combining both a little, greatly can improve the performance of emulsion.
Embodiment
A kind of composite metal roof insulation waterproof paint, is made up of investment precoat and base layer dope,
The raw material of investment precoat comprises the component of following weight part content: water 5-, dispersion agent 0.5-1.5, defoamer 0.2-1, pigment 5-15, hollow glass micropearl 5-10, inorganic thixotropic thickening agent 5-10, mineral filler 20-25, fluorine-silicon modified acrylic emulsion 5-43, ACRYLIC EMULSION 28-43, film coalescence aid 0.5-1, pH value regulator 0.05-0.1, thickening material 0.02-0.05, antifreezing agent 0.5-1.The raw material of base layer dope comprises the component of following weight part content: water 5-10, dispersion agent 0.5-1.5, defoamer 0.2-1, pigment 5-10, heat conduction functional stuffing 18-27, inorganic thixotropic thickening agent 5-10, mineral filler 8-12, fluorine-silicon modified acrylic emulsion 5-40, ACRYLIC EMULSION 25-40, pH value regulator 0.05-0.1, thickening material 0.02-0.05, antifreezing agent 0.5-1.
In addition, base layer dope can further include the component of following weight part content: antiager 0.1-1, flow agent 0.15-1, sterilant 0.2-1.
Above in each component raw material, dispersion agent is anionic dispersing agent.Defoamer is non-ionic type defoamer.Inorganic thixotropic thickening agent is one or more of attapulgite, organobentonite or calcined kaolin.Pigment is Rutile type Titanium Dioxide.Mineral filler is one or more in quartz sand, calcium carbonate or talcum powder.PH value regulator is organic amine pH value regulator.Antifreezing agent is alcohols antifreezing agent.Thickening material is one or more in Natvosol, methylcellulose gum, carboxymethyl cellulose.Film coalescence aid is ester alcohols film coalescence aid.Heat conduction functional stuffing is one or more in aluminum oxide, magnesium oxide, zinc oxide, aluminium nitride, boron nitride or silicon carbide.Hollow glass micropearl is high strength hollow glass micropearl, and main component is silicon-dioxide.Fluorine-silicon modified acrylic emulsion is the silicone based acrylic resin modified emulsion for main body, utilize the organosilane monomer γ-methacryloxypropyl trimethoxy silane containing double bond and the copolymerization of vinylformic acid (ester) monomer radical, carry out modification to acrylic resin, silicone content is 8-10wt%.The second-order transition temperature of ACRYLIC EMULSION is between-10 DEG C to-40 DEG C.
Composite metal roof insulation waterproof paint comprises the preparation of investment precoat and preparation two steps of base layer dope in the preparation,
Time prepared by investment precoat, at normal temperatures and pressures by dispersion agent, defoamer, pigment, be dissolved in formula ratio 40%-70% massfraction water in mix, add inorganic thixotropic thickening agent, mineral filler, ACRYLIC EMULSION, film coalescence aid stir, then ACRYLIC EMULSION, pH value regulator is added, thickening material, mixes and finally adds hollow glass micropearl and remaining water stirs; Whole dispersion process stirrer rotating speed is at 600 ~ 1200r/min.
Time prepared by base layer dope, at normal temperatures and pressures dispersion agent, defoamer, pigment, heat conduction functional stuffing are dissolved in the water of formula ratio 40%-70% massfraction and mix, add inorganic thixotropic thickening agent, mineral filler, ACRYLIC EMULSION, film coalescence aid stir, then ACRYLIC EMULSION, pH value regulator is added, thickening material, mixes and finally adds remaining water and stir.Whole dispersion process stirrer rotating speed is at 600 ~ 1200r/min.
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
One, Preparation equipment
Speed governing dispersion all-in-one, agitation vat
Two, process explanation
Add dispersion according to formula form according to this area routine techniques means sequence requirement ratio, time.
Three, formulation weight proportioning component
Water 5-10 part, dispersion agent 0.5-1.5 part, defoamer 0.2-1 part, pigment 5-15 part, hollow glass micropearl 5-10 part, inorganic thixotropic thickening agent 5-10 part, mineral filler 20-25 part, fluorine-silicon modified acrylic emulsion 5-43, ACRYLIC EMULSION 28-43 part, film coalescence aid 0.5-1 part, pH value conditioning agent 0.05-0.1 part, thickening material 0.02-0.05 part, antifreezing agent 0.5-1 part.
Further, metal Roof top layer thermal insulating coating, also comprises antiager 0.1-1 part, flow agent 0.15-1 part, sterilant 0.2-1 part.
Below provide several formula realizing metal Roof top layer of the present invention thermal insulating coating particularly:
Scheme 1
5 parts, water, dispersion agent 0.5 part, defoamer 0.2 part, pigment 5 parts, hollow glass micropearl 5 parts, inorganic thixotropic thickening agent 5 parts, mineral filler 20 parts, fluorine-silicon modified acrylic emulsion 10 parts, ACRYLIC EMULSION 28 parts, film coalescence aid 0.5 part, pH value conditioning agent 0.05 part, thickening material 0.02 part, antifreezing agent 0.5 part, antiager 0.5 part, flow agent 1 part, 0.5 part, sterilant.
Scheme 2
10 parts, water, dispersion agent 1 part, defoamer 0.8 part, pigment 10 parts, hollow glass micropearl 10 parts, inorganic thixotropic thickening agent 5 parts, mineral filler 22 parts, fluorine-silicon modified acrylic emulsion 12 parts, ACRYLIC EMULSION 40 parts, film coalescence aid 1 part, pH value conditioning agent 0.1 part, thickening material 0.05 part, antifreezing agent 1 part.Antiager 0.2 part, flow agent 0.5 part, 0.5 part, sterilant.
Embodiment 2
Metal Roof basic unit of the present invention heat radiation coating is adopted and is prepared with the following method:
One, Preparation equipment
Speed governing dispersion all-in-one, agitation vat
Two, process explanation
Add dispersion according to formula form according to this area routine techniques means sequence requirement ratio, time.
Three, formulation weight proportioning component
Water 5-10 part, dispersion agent 0.5-1.5 part, defoamer 0.2-1 part, pigment 5-10 part, heat conduction functional stuffing 18-27, inorganic thixotropic thickening agent 5-10 part, mineral filler 8-12 part, fluorine-silicon modified acrylic emulsion 5-40 part, ACRYLIC EMULSION 25-40 part, pH value conditioning agent 0.05-0.1 part, thickening material 0.02-0.05 part, antifreezing agent 0.5-1 part.
Further, described metal Roof basic unit heat radiation coating, also comprises antiager 0.1-1 part, flow agent 0.15-1 part, sterilant 0.2-1 part.
Below provide and severally realize metal Roof basic unit of the present invention heat radiation coating particularly:
Embodiment 1
10 parts, water, dispersion agent 1.5 parts, defoamer 1 part, pigment 10 parts, heat conduction functional stuffing 27, inorganic thixotropic thickening agent 8 parts, mineral filler 10 parts, fluorine-silicon modified acrylic emulsion 8 parts, ACRYLIC EMULSION 37 parts, pH value conditioning agent 0.08 part, thickening material 0.02 part, antifreezing agent 1 part, antiager 0.1 part, flow agent 0.45 part, 0.5 part, sterilant.
Embodiment 2
8 parts, water, dispersion agent 1 part, defoamer 1 part, pigment 5 parts, heat conduction functional stuffing 20, inorganic thixotropic thickening agent 10 parts, mineral filler 8 parts, fluorine-silicon modified acrylic emulsion 14 parts, ACRYLIC EMULSION 30 parts, pH value conditioning agent 0.1 part, thickening material 0.02 part, antifreezing agent 0.5 part, antiager 0.5 part, flow agent 1 part, 1 part, sterilant.
The composition form of composite metal roof insulation waterproof paint system of the present invention:
At the metal Roof top layer even paint metals roof-base heat radiation coating of cleaning.After basic unit's heat radiation coating drying, paint metals roofing surface layer heat-insulating waterproof coating.The protective coating formed after the coating complete drying of two coatings is composite metal roof insulation waterproof paint system.
Embodiment 3
A kind of composite metal roof insulation waterproof paint, is made up of investment precoat and base layer dope,
The raw material of investment precoat comprises the component of following weight part content: water 5, dispersion agent 0.5, defoamer 0.2, pigment 5, hollow glass micropearl 5, inorganic thixotropic thickening agent 5, mineral filler 20, fluorine-silicon modified acrylic emulsion 16 parts, ACRYLIC EMULSION 28, film coalescence aid 0.5, pH value regulator 0.05, thickening material 0.02, antifreezing agent 0.5;
The raw material of base layer dope comprises the component of following weight part content: water 5, dispersion agent 0.5, defoamer 0.2, pigment 5, heat conduction functional stuffing 18, inorganic thixotropic thickening agent 5, mineral filler 8, fluorine-silicon modified acrylic emulsion 21 parts, ACRYLIC EMULSION 25, pH value regulator 0.05, thickening material 0.02, antifreezing agent 0.5.
In above-mentioned raw materials, dispersion agent is anionic dispersing agent, defoamer is non-ionic type defoamer, inorganic thixotropic thickening agent is attapulgite, pigment is Rutile type Titanium Dioxide, and mineral filler is quartz sand, and pH value regulator is organic amine pH value regulator, antifreezing agent is alcohols antifreezing agent, and thickening material is one or more in Natvosol, methylcellulose gum, carboxymethyl cellulose.Film coalescence aid is ester alcohols film coalescence aid, heat conduction functional stuffing is aluminum oxide, hollow glass micropearl is high strength hollow glass micropearl, main component is silicon-dioxide, the second-order transition temperature of ACRYLIC EMULSION is between-10 DEG C to-40 DEG C, fluorine-silicon modified acrylic emulsion is the silicone based acrylic resin modified emulsion for main body, and silicone content is 8-10wt%.
Composite metal roof insulation waterproof paint comprises the preparation of investment precoat and preparation two steps of base layer dope in the preparation,
Time prepared by investment precoat by dispersion agent, defoamer, pigment, be dissolved in formula ratio 40%-70% massfraction, mix, add inorganic thixotropic thickening agent, mineral filler, fluorine-silicon modified acrylic emulsion, ACRYLIC EMULSION, film coalescence aid stir, then ACRYLIC EMULSION, pH value regulator is added, thickening material, mixes and finally adds hollow glass micropearl and remaining water stirs;
Time prepared by base layer dope, dispersion agent, defoamer, pigment, heat conduction functional stuffing are dissolved in the water of formula ratio 40%-70% massfraction, mix, add inorganic thixotropic thickening agent, mineral filler, fluorine-silicon modified acrylic emulsion, ACRYLIC EMULSION, film coalescence aid stir, then ACRYLIC EMULSION, pH value regulator is added, thickening material, mixes and finally adds remaining water and stir.
Embodiment 4
A kind of composite metal roof insulation waterproof paint, is made up of investment precoat and base layer dope,
The raw material of investment precoat comprises the component of following weight part content: water 8, dispersion agent 1, defoamer 0.5, pigment 10, hollow glass micropearl 8, inorganic thixotropic thickening agent 8, mineral filler 22, fluorine-silicon modified acrylic emulsion 15 parts, ACRYLIC EMULSION 30, film coalescence aid 0.8, pH value regulator 0.08, thickening material 0.03, antifreezing agent 0.8;
The raw material of base layer dope comprises the component of following weight part content: water 8, dispersion agent 1, defoamer 0.8, pigment 7, heat conduction functional stuffing 25, inorganic thixotropic thickening agent 7, mineral filler 10, fluorine-silicon modified acrylic emulsion 12 parts, ACRYLIC EMULSION 33, pH value regulator 0.07, thickening material 0.04, antifreezing agent 0.6, antiager 0.1, flow agent 0.15, sterilant 0.2.
In above-mentioned raw materials, dispersion agent is anionic dispersing agent, defoamer is non-ionic type defoamer, inorganic thixotropic thickening agent is the mixture of organobentonite and calcined kaolin, pigment is Rutile type Titanium Dioxide, and mineral filler is calcium carbonate and talcous mixture, and pH value regulator is organic amine pH value regulator, antifreezing agent is alcohols antifreezing agent, and thickening material is one or more in Natvosol, methylcellulose gum, carboxymethyl cellulose.Film coalescence aid is ester alcohols film coalescence aid, heat conduction functional stuffing is the mixture of magnesium oxide and zinc oxide, hollow glass micropearl is high strength hollow glass micropearl, main component is silicon-dioxide, the second-order transition temperature of ACRYLIC EMULSION is between-10 DEG C to-40 DEG C, fluorine-silicon modified acrylic emulsion is the silicone based acrylic resin modified emulsion for main body, and silicone content is 8-10wt%.
Composite metal roof insulation waterproof paint comprises the preparation of investment precoat and preparation two steps of base layer dope in the preparation,
Time prepared by investment precoat by dispersion agent, defoamer, pigment, be dissolved in formula ratio 40%-70% massfraction water in mix, add inorganic thixotropic thickening agent, mineral filler, ACRYLIC EMULSION, film coalescence aid stir, then ACRYLIC EMULSION, pH value regulator is added, thickening material, mixes and finally adds hollow glass micropearl and remaining water stirs;
Time prepared by base layer dope, dispersion agent, defoamer, pigment, heat conduction functional stuffing are dissolved in the water of formula ratio 40%-70% massfraction and mix, add inorganic thixotropic thickening agent, mineral filler, fluorine-silicon modified acrylic emulsion, ACRYLIC EMULSION, film coalescence aid stir, then ACRYLIC EMULSION, pH value regulator is added, thickening material, mixes and finally adds remaining water and stir.
Embodiment 5
A kind of composite metal roof insulation waterproof paint, is made up of investment precoat and base layer dope,
The raw material of investment precoat comprises the component of following weight part content: water 10, dispersion agent 1.5, defoamer 1, pigment 15, hollow glass micropearl 10, inorganic thixotropic thickening agent 10, mineral filler 25, fluorine-silicon modified acrylic emulsion 5 parts, ACRYLIC EMULSION 43, film coalescence aid 1, pH value regulator 0.1, thickening material 0.05, antifreezing agent 1;
The raw material of base layer dope comprises the component of following weight part content: water 10, dispersion agent 1.5, defoamer 1, pigment 10, heat conduction functional stuffing 27, inorganic thixotropic thickening agent 10, mineral filler 12, fluorine-silicon modified acrylic emulsion 7 parts, ACRYLIC EMULSION 40, pH value regulator 0.1, thickening material 0.05, antifreezing agent 1, antiager 1, flow agent 1, sterilant 1.
In above-mentioned raw materials, dispersion agent is anionic dispersing agent, defoamer is non-ionic type defoamer, inorganic thixotropic thickening agent is calcined kaolin, pigment is Rutile type Titanium Dioxide, and mineral filler is calcium carbonate, and pH value regulator is organic amine pH value regulator, antifreezing agent is alcohols antifreezing agent, and thickening material is one or more in Natvosol, methylcellulose gum, carboxymethyl cellulose.Film coalescence aid is ester alcohols film coalescence aid, and heat conduction functional stuffing is boron nitride, and hollow glass micropearl is high strength hollow glass micropearl, and main component is silicon-dioxide, and the second-order transition temperature of ACRYLIC EMULSION is between-10 DEG C to-40 DEG C.Fluorine-silicon modified acrylic emulsion is silicone based acrylic resin modified, and silicone content is 8-10wt%.
Composite metal roof insulation waterproof paint comprises the preparation of investment precoat and preparation two steps of base layer dope in the preparation,
Time prepared by investment precoat by dispersion agent, defoamer, pigment, be dissolved in formula ratio 40%-70% massfraction water in mix, add inorganic thixotropic thickening agent, mineral filler, fluorine-silicon modified acrylic emulsion, ACRYLIC EMULSION, film coalescence aid stir, then ACRYLIC EMULSION, pH value regulator is added, thickening material, mixes and finally adds hollow glass micropearl and remaining water stirs;
Time prepared by base layer dope, dispersion agent, defoamer, pigment, heat conduction functional stuffing are dissolved in the water of formula ratio 40%-70% massfraction and mix, add inorganic thixotropic thickening agent, mineral filler, fluorine-silicon modified acrylic emulsion, ACRYLIC EMULSION, film coalescence aid stir, then ACRYLIC EMULSION, pH value regulator is added, thickening material, mixes and finally adds remaining water and stir.
Carry out performance test to the sheet metal roofing waterproof coating material that above-mentioned 5 embodiments obtain respectively, result is as follows:
As can be seen from the above table, 5 real cases can meet standard-required, and water-intake rate is in lower level, and water resistance is excellent.Sunlight reflectivity and hemispherical emissivity remain on higher level.Can be found out by above experimental data, the composite metal roof insulation waterproof paint system in the present invention is compared with prior art, better with basic unit sticking power, bonds more firm.Ageing-resistant performance is more excellent, and resistance to ultraviolet, weather resisteant are outstanding, long service life.Heat insulation protection effect is obvious, effectively can reduce room temp, energy-conserving and environment-protective.Product Green environmental protection, limit of harmful substance significantly lower than the requirement of building coating series products, without obvious smell.
The content be not described in detail in specification sheets of the present invention belongs to the known technology of professional and technical personnel in the field; the present invention is not limited to the protection content related to shown in claim and specific examples; as long as according to design of the present invention any invention of creating out, all should belong within protection scope of the present invention.
Claims (10)
1. a composite metal roof insulation waterproof paint, is characterized in that, this coating is made up of investment precoat and base layer dope,
The raw material of described investment precoat comprises the component of following weight part content: water 5-10, dispersion agent 0.5-1.5, defoamer 0.2-1, pigment 5-15, hollow glass micropearl 5-10, inorganic thixotropic thickening agent 5-10, mineral filler 20-25, fluorine-silicon modified acrylic emulsion 5-43, ACRYLIC EMULSION 28-43, film coalescence aid 0.5-1, pH value regulator 0.05-0.1, thickening material 0.02-0.05, antifreezing agent 0.5-1;
The raw material of described base layer dope comprises the component of following weight part content: water 5-10, dispersion agent 0.5-1.5, defoamer 0.2-1, pigment 5-10, heat conduction functional stuffing 18-27, inorganic thixotropic thickening agent 5-10, mineral filler 8-12, fluorine-silicon modified acrylic emulsion 5-40, ACRYLIC EMULSION 25-40, pH value regulator 0.05-0.1, thickening material 0.02-0.05, antifreezing agent 0.5-1.
2. a kind of composite metal roof insulation waterproof paint according to claim 1, it is characterized in that, described base layer dope also comprises the component of following weight part content: antiager 0.1-1, flow agent 0.15-1, sterilant 0.2-1.
3. a kind of composite metal roof insulation waterproof paint according to claim 1, it is characterized in that, described dispersion agent is anionic dispersing agent, described defoamer is non-ionic type defoamer, described inorganic thixotropic thickening agent is one or more of attapulgite, organobentonite or calcined kaolin, and described pigment is Rutile type Titanium Dioxide.
4. a kind of composite metal roof insulation waterproof paint according to claim 1, it is characterized in that, described mineral filler is one or more in quartz sand, calcium carbonate or talcum powder, described pH value regulator is organic amine pH value regulator, described antifreezing agent is alcohols antifreezing agent, and described thickening material is one or more in Natvosol, methylcellulose gum or carboxymethyl cellulose.
5. a kind of composite metal roof insulation waterproof paint according to claim 1, is characterized in that, described film coalescence aid is ester alcohols film coalescence aid.
6. a kind of composite metal roof insulation waterproof paint according to claim 1, is characterized in that, described heat conduction functional stuffing is one or more in aluminum oxide, magnesium oxide, zinc oxide, aluminium nitride, boron nitride or silicon carbide.
7. a kind of composite metal roof insulation waterproof paint according to claim 1, it is characterized in that, described fluorine-silicon modified acrylic emulsion is the silicone based acrylic resin modified emulsion for main body, utilize the organosilane monomer γ-methacryloxypropyl trimethoxy silane containing double bond and the copolymerization of vinylformic acid (ester) monomer radical, carry out modification to acrylic resin, silicone content is 8-10wt%.
8. a kind of composite metal roof insulation waterproof paint according to claim 1, it is characterized in that, described hollow glass micropearl is high strength hollow glass micropearl, and main component is silicon-dioxide.
9. a kind of composite metal roof insulation waterproof paint according to claim 1, it is characterized in that, the second-order transition temperature of described ACRYLIC EMULSION is between-10 DEG C to-40 DEG C.
10. the preparation method of a kind of composite metal roof insulation waterproof paint as claimed in claim 1, is characterized in that, the method comprises the preparation of investment precoat and preparation two steps of base layer dope,
Time prepared by investment precoat by dispersion agent, defoamer, pigment, be dissolved in total amount 50-70wt% water in mix, grinding evenly, add inorganic thixotropic thickening agent, mineral filler, fluorine-silicon modified acrylic emulsion, film coalescence aid stir, then ACRYLIC EMULSION, pH value regulator is added, thickening material, mixes and finally adds hollow glass micropearl and remaining water stirs;
Time prepared by base layer dope, dispersion agent, defoamer, pigment, heat conduction functional stuffing are dissolved in the 40-50wt% water of total amount and mix, add inorganic thixotropic thickening agent, mineral filler, fluorine-silicon modified acrylic emulsion, film coalescence aid stir, then ACRYLIC EMULSION, pH value regulator is added, thickening material, mixes and finally adds remaining water and stir.
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