A kind of inorganic reflective heat insulation Folium Nelumbinis coating and preparation method thereof
Technical field
The invention belongs to thermal insulation coatings technical field, be specifically related to a kind of inorganic reflective heat insulation Folium Nelumbinis coating and preparation side thereof
Method.
Background technology
Under construction, the thermal losses of peripheral structure is relatively big, and in peripheral structure, body of wall account for again the biggest share.Therefore
This, the development of construction wall reform and body of wall power-saving technology is a most important link of energy-saving building technology, develops exterior wall
Heat preservation technology and energy-saving material are then the main implementations of building energy conservation.
External Walls Heating Insulation originates from Europe the earliest, and China is to start pilot from 20th century the mid-80, and by this skill
Art is widely used in building field.But current building energy conservation level, also far below developed country, China's construction unit area
Energy consumption is still 3~5 times of the close developed country of weather.So one of building energy conservation or Building Trade in China in this century important
Problem.In recent years, along with deepening continuously of China's dwelling construction energy conservation, and the improving constantly of energy conservation standard, introduce
Develop many novel power-saving technologies and material, vigorously promote the use in residential housing.Wherein it is applied to exterior-wall heat insulation
Various foam plastics insulation materials (such as EPS sheet, XPS plate material and polyurathamc sheet material etc.) and by the high-efficiency reflective sun
Light reaches heat insulation purpose thin bed reflection insulating moulding coating.The former section bar class belongs to inorganic heat insulation material, assembling construction to be carried out, and deposits
Many in seam, damage the defects such as attractive in appearance, water proofing property is poor, service life is short.And thin bed reflection insulating moulding coating is current important research
Direction.
Outer heat preservation system uses thick material to develop than thin layer insulating moulding coating more earlier, has some at present and successfully produces enterprise
Industry and Engineering Projects, the starting of thin layer insulating moulding coating is the most later, and on market, like product effect is uneven, but market, south is sent out
Exhibition has a extensive future.
In thin bed reflection insulating moulding coating is studied, at present, architectural reflective heat-insulation paint is mainly with synthetic resin (acrylic acid
Emulsion) it is that base material is formulated with functional color stuffing (such as infrared pigment, cenosphere, metal particle etc.) and auxiliary agent, apply
In building surface, there is higher sunlight reflectivity and the functional coating of higher hemispherical emissivity.It uses
Acrylic acid is main film forming matter, but at weatherability, resistance to water, mildew resistance, adhesive force, thermostability, fire line and inorganic silicate
Coating there is also obvious difference.
First, the base material of inorganic coating the most directly has drawn from nature, thus source is the abundantest.Such as, silicon
Colloidal sol, the paint binder such as silicate solutions, its main raw material(s) derives from quartziferous Ore, is material extremely abundant in nature
Material.Secondly, for some organic coating base materials, the production of inorganic coating base material and pollution to environment during using
Little, product majority is with water as disperse medium, without the harmful effect in terms of environment and health;Three be the ageing-resistant of inorganic coating and
Some physical and chemical performance is that the organic coating of exhausted most identical production cost is extremely difficult to, and therefore it has preferable technology
Economic performance;Four is that inorganic coating is most in alkalescence, is more suitable for applying in the basic units such as same aobvious alkaline cement and sand-lime,
And chemical reaction can be produced with the Calx in these base materials and generate calcium silicate crystals, it is possible to and basic unit's formation one, thus its
Adhesive force is especially good.General situation of development inorganic coating does not has clear and definite definition so far, generally refers to main base according to the custom of people
Material is a class coating of inorganic material.
Also having many patents or document to disclose thin layer inorganic reflective insulating moulding coating in prior art, it uses inorganic silicic acid
Potassium and hollow glass micropearl, metal-oxide etc. carry out the reflective heat-insulation paint prepared, due to its rough surface, in stain resistant side
Face has been short of;And the addition of hollow glass micropearl is less, the effect of reflective insulation is limited in actual applications.
Summary of the invention
It is an object of the invention to provide a kind of inorganic reflective heat insulation Folium Nelumbinis coating, this inorganic reflective heat insulation Folium Nelumbinis coating exists
Not only there is in construction substrate the heat-reflecting heat-insulating effect of excellence, and by the optimization to reflective insulation compound material, in the summer
The reflective insulation occupying in indoor temperature, and the present invention can be substantially reduced season meet material and do not contain the organic exhaust gas such as formaldehyde, not contain
APEO, health environment-friendly, lotus leaf effect, stain resistant.
The present invention also aims to provide the preparation method of above-mentioned inorganic reflective heat insulation Folium Nelumbinis coating, the letter of the method technique
Single, production operation is convenient.
First purpose of the present invention is achieved by the following technical solution: a kind of heat insulation Folium Nelumbinis of inorganic reflective is coated with
Material, is mainly made up of the raw material of following proportion by weight:
Inorganic silicate film forming matter 18~25
Complex reflex heat-barrier material 20~30
Rutile type titanium dioxide 8~12
Aqueous acrylic emulsion 10~12
Organosilicon auxiliary agent 3~6
Silane coupler 4~8
Ethylene glycol 2~4
Dispersant 0.6~1.0
Wetting agent 0.2~0.4
Defoamer 0.3~0.6
Thickening agent 0.1~0.3
Buffer agent 0.1~0.5
Viscosity stabiliser 1~5
Water 10~20.
The model that inorganic silicate film forming matter of the present invention preferably Tianjin Rui Shi company limited produces is INOCOT
The inorganic silicic acid salt resin of 330.
This inorganic silicic acid salt resin is stable, high concentration, the limpid tasteless binding agent made based on potassium silicate,
INOCOT 330 can be combined the most firm structure of formation by silicification reaction with mineral substrate;The shape due to generation chemical reaction
Stronger chemical bond, product and mineral surfaces has been become to have adhesive property well;Owing to having similar heat to mineral substrate
The coefficient of expansion, the formation decreasing crack of minimum level.
Complex reflex heat-barrier material of the present invention is made up of the raw material of following proportion by weight:
Heat-reflecting heat-insulating powder 10~13
Kieselguhr 3~5
Synthetic aluminium silicate functional pigment 3~5
Wollastonite 3~5
Mica powder 3~5
The model that wherein said heat-reflecting heat-insulating Fen Shi Japanese empire chemical company produces be JR1000 there is heat reflection
The titanium dioxide of function.
This its particle diameter of titanium dioxide with function of heat reflection is about 1 μm, is far longer than common Rutile type titanium dioxide 0.3 μm
Particle diameter, there is higher infrared reflection heat-insulating capability.
When reflective insulation material uses single heat reflection titanium dioxide, construct when building wall, reflective insulation efficiency
Lower than at laboratory data, mainly affected by film thickness and color stuffing collocation is unreasonable thus affect reflective insulation efficiency.
The present invention uses kieselguhr, synthetic aluminium silicate functional pigment, wollastonite and mica powder, and these have heat insulating function
The reasonably combined titanium dioxide with function of heat reflection of filler make complex reflex heat-barrier material, when film forming, it is easy to inorganic silicon
Acid salt resin INOCOT 330 forms crosslinking, not only facilitates raising compact in paint film degree, adhesive force, weatherability, more can improve anti-
Penetrate heat-insulating efficiency.
Kieselguhr is by unbodied SiO2Composition, can improve the chemical actions such as heat-resisting, wear-resisting, the insulation of product, aging resistance
Performance, by add lightweight, low density kieselguhr, not only improve insulation efficiency, simultaneously reduce product proportion, with
Time be also used as effective coating thickener, thixotropic agent, suspending agent.
Synthetic aluminium silicate functional pigment in reflective insulation composite is to be produced by U.S. Huber (Qiu Bo) company,
Model is Zeolex 323, and it is the superfine alumina silicate sodium that a kind of whiteness level is high, is known as one " space increase-volume pigment ",
That can improve titanium dioxide covers power.Its " air pocket structure " can improve the refracting power to light thus improve covering power.And instead
Penetrate in the heat insulation new formula of Folium Nelumbinis coating, it is possible to the effectively titanium dioxide (Rutile type titanium dioxide) of arrangement, reduce adding of titanium dioxide
Dosage.
In the present invention, use Zeolex 323 can not only improve covering power, also be able to improve heat-reflecting heat-insulating simultaneously
The service efficiency of powder JR1000, thus reflective insulation intensity is significantly increased.
Wollastonite belongs to a kind of chain metasilicate, is again a kind of in threadiness, needle-like.Due to the crystal habit that it is special
Crystalline texture, thermal coefficient of expansion is low, and when 25~800 DEG C, thermal coefficient of expansion is 6.5 × 10-6Mm/ (mm DEG C), therefore has relatively
High heat resistance.
Mica powder belongs to monoclinic crystal, and crystal is flakey, heat resistance 500~600 DEG C, thermal conductivity 0.419~0.670W.
(m.K)-1, therefore there is higher heat-proof quality.
In complex reflex heat-barrier material, the particle diameter of heat-reflecting heat-insulating powder JR1000 is 1 μm, is far longer than ordinary titanium powder
Particle diameter, shown by published data, it is possible to increase the heat-reflecting heat-insulating performance of coating products.But due to its cost too
Height, uses addition limited.Therefore heat-reflecting heat-insulating powder is used to carry out with kieselguhr, synthetic aluminium silicate, wollastonite and mica powder
Reasonably combined, form complex reflex heat-barrier material, utilize the different size of powder, different topographical structure,
It is silicate types, when film forming, forms crosslinking with film forming matter potassium silicate solution, silane coupler, improve paint film further
Self-crosslinking degree, thus form densification and efficient paint film.And complex reflex heat-barrier material all uses light material, make to do
Density is the lowest, and then obtains relatively low heat conductivity.And kieselguhr in complex reflex heat-barrier material, wollastonite,
Mica powder all has higher heat resistance, not only improves the reflective insulation performance of paint film, the most also improves the resistance of paint film self
Hot property.Arranged in pairs or groups by reasonably design complex reflex heat-barrier material so that it is reflective insulation efficiency far is used alone more than ratio
Heat reflection powder or wherein a certain raw material provided reflective insulation efficiency.
The present invention is simultaneously added with machine silicones and silicone coupling agents, with film forming matter potassium silicate, the heat insulation material of complex reflex
Material and base material carry out cross-linking and self-crosslinking, form finer and close paint film, form hydrophobic face at coating surface, and hydrophobicity is strong, no
Only reach the lotus leaf effect of excellence, also improve stain resistance and the weatherability of paint film simultaneously.
The model that Rutile type titanium dioxide of the present invention preferably Ningbo Xinfu Titanium Dioxide Co., Ltd. produces is NTR-
The titanium dioxide of 606.
The aqueous acrylamide that model is RS-752D that aqueous acrylic emulsion of the present invention preferably Ahmedabad richness company produces
Yogurt liquid.Its solid content is 52~54%, and minimum film formation temperature is 10 DEG C.
It is SILRES that organosilicon auxiliary agent of the present invention is preferably the model of company limited of Wa Ke global group of Germany production
The silicone resin emulsion of BS-45.It has the transmitance of the highest carbon dioxide and steam, adds the breathability of paint film
And do not affect the compactness of paint film.
The siloxanes coupling that model is A-174 that silane coupler of the present invention preferably U.S. Mai Tu company produces
Agent.Its chemical formula is γ-(methacryloxypropyl) propyl trimethoxy silicane, can improve the hydrophobicity of paint film, make paint film have
Lotus leaf effect.In this inorganic reflective heat insulation Folium Nelumbinis formulation for coating material, because Main System is based on silicon, in its formula system directly
When adding silane coupler, silane coupler is prone to react with inorganic silicate film forming matter, forms tiny gel, it is therefore desirable to
Silane coupler is first proportionally dissolved in ethylene glycol, adds in formula, to ensure the stability of formula.
Dispersant of the present invention is preferably polycarboxylate sodium's type that model is SN-5040 that Nuo Puke company of Japan produces
Dispersant, the polycarboxylic acids ammonium salt dispersant that model is SN-DISPERSANT 5027 of Nuo Puke company of Japan production and Luo Menha
One or more in the hydrophobically modified polymers of carboxylic acid type dispersant that model is OROTAN-731A that this company produces.
Wherein SN-5027 is a kind of special polycarboxylic acids ammonium salt dispersant, can significantly improve the resistance to water of film.
It is the alkyl polyoxy without APEO that Germany's Clariant produces that wetting agent of the present invention is preferably described wetting agent
The special alcohols that the surfactant LCN407 of vinyl Ether, LG-DOW produce surfactant B D109 and six without APEO
One or more of Polymeric sodium metaphosphate..
Defoamer of the present invention is preferably the type being mainly composed of mineral oils that Sheng Nuopuke company of Japan produces
Number for the defoamer of NXZ, the molecular antifoaming agent that model is Foamstar A10 of the peaceful Chemical Manufacture of section and Japan Sheng Nuopu
The model based on mineral oil that company of section produces is one or more in SN-154 organic silicon defoamer.
Thickening agent of the present invention be preferably described thickening agent be the sub-model produced across dragon company of the U.S. be 250HBR
Hydroxyethyl cellulose, the forming of TT935 that produce of the hydroxyethyl cellulose of B-30K that produces of Samsung of Korea S, LG-DOW
Mould assembly alkali swelling thickening agent, the bright the most solvent-laden non-ionic polyurethane association thickener insulting the PUR40 produced of Germany and U.S.
One or more in the most solvent-laden non-ionic polyurethane association thickener of the RM2020 that state Tao Shi produces.
The effect of thickening agent is the viscosity improving coating.
Buffer agent of the present invention is preferably the response type that model is SILRES BS-198 that Wa Ke company of Germany produces
Multifunctional assistant AMP-95 (2-amino-2-methyl-the 1-third that silicone active thing clean taste pH adjusting agent or DOW Chemical produce
Alcohol).
The effect of buffer agent is that the pH of coating is adjusted to 7~8.
Viscosity stabiliser of the present invention preferably model is that the Tianjin Rui Shi company limited of INOCOT 925 produces
Viscosity stabiliser.
This viscosity stabiliser, it is possible to inhibition system caking in early days, thus improve product bin stability.
Second object of the present invention is achieved through the following technical solutions: above-mentioned inorganic reflective heat insulation Folium Nelumbinis coating
Preparation method, comprise the following steps:
(1) heat-reflecting heat-insulating powder, kieselguhr, synthetic aluminium silicate functional pigment, wollastonite and mica powder are chosen, mixing
After, prepare complex reflex heat-barrier material;
(2) stock dispersion agent, wetting agent, defoamer, thickening agent, buffer agent, complex reflex heat-barrier material and golden red are chosen
Stone-type titanium dioxide, adds water, with the stir speed (S.S.) high-speed stirred 30 of 1500~1800 revs/min~40 minutes, is dispersed to fineness and closes
After lattice, make uniform sizing material 1;
(3) raw material silane coupler is chosen, after using ethylene glycol dilution, with starting material inorganic silicate film forming matter, aqueous third
Olefin(e) acid emulsion, organosilicon auxiliary agent and viscosity stabiliser add in residue water, with low speed in the stir speed (S.S.)s of 400~600 revs/min
Stir 5~10 minutes, make uniform sizing material 2;
(4) slurry 1 is added in slurry 2, with the stir speed (S.S.) stirring at low speed 20 of 400~500 revs/min~25 minutes, system
Obtain inorganic reflective heat insulation Folium Nelumbinis coating.
In the preparation method of this inorganic reflective heat insulation Folium Nelumbinis coating: in step (2), the consumption of water accounts for the 50 of water gross mass
~60%.
Present invention have the advantage that
(1) the heat insulation Folium Nelumbinis of the inorganic reflective in present invention coating heat transfer coefficient is low, can reduce by 20~25 DEG C summer, the most originally
Inorganic reflective heat insulation Folium Nelumbinis coating in invention does not contains the organic exhaust gas such as formaldehyde, stain resistant, good weatherability;
(2) inorganic reflective of the present invention heat insulation Folium Nelumbinis coating materials are simple, cost performance is high, it is good to apply performance;
(3) the reflective insulation Folium Nelumbinis coating of the present invention, compared with thin layer acrylic acid reflective heat-insulation paint, has the resistance to of excellence
Hou Xing, adhesive force, breathability, have more excellent reflective insulation efficiency than the inorganic silicate reflective heat-insulation paint of thin layer;
(4) due to the fact that and have employed dynamical reflective insulation composite, it uses different-grain diameter, different surfaces shape
Shape and effective arrangement that heat reflection titanium dioxide and Rutile type titanium dioxide can be improved, thus improve the film forming efficiency of paint film,
Through significantly improving the reflective insulation efficiency of system, and all use the filler of silicate, more can improve the self-crosslinking degree of paint film,
Form fine and close and efficient paint film, simultaneously added with machine silicones and silicone coupling agents, it is possible to increase the hydrophobicity of paint film, reach
To excellent lotus leaf effect, and do not affect the breathability of paint film, have more the stain resistance of excellence;
(5), for comparing acrylic acid building coating, inorganic reflective heat insulation Folium Nelumbinis coating has more the antibiotic property of excellence, mildew-resistant
Property, fire line.
Accompanying drawing explanation
Fig. 1 is the lotus leaf effect application test result of the inorganic reflective heat insulation Folium Nelumbinis coating of preparation, wherein A in embodiment 2
Figure is common coating, and B figure is the heat insulation Folium Nelumbinis coating of the inorganic reflective in embodiment 1.
Detailed description of the invention
Following raw material if no special instructions, is commercially available prod.
Inorganic reflective heat insulation Folium Nelumbinis coating prepared by the Part I present invention
Embodiment 1
The inorganic reflective heat insulation Folium Nelumbinis coating that the present embodiment provides, is mainly made up of the raw material of following proportion by weight:
Inorganic silicate film forming matter 20
Complex reflex heat-barrier material 25
Rutile type titanium dioxide 12
Aqueous acrylic emulsion 10
Organosilicon auxiliary agent 3
Silane coupler 5
Ethylene glycol 3
Dispersant 0.6
Wetting agent 0.4
Defoamer 0.6
Thickening agent 0.1
Buffer agent 0.1
Viscosity stabiliser 5
Water 15.2
Wherein complex reflex heat-barrier material is made up of the raw material of following proportion by weight:
Heat-reflecting heat-insulating powder 10
Kieselguhr 3
Synthetic aluminium silicate functional pigment 3
Wollastonite 3
Mica powder 3.
Wherein heat-reflecting heat-insulating Fen Shi Japanese empire chemical company produce model be JR1000 there is function of heat reflection
Titanium dioxide.
Synthetic aluminium silicate functional pigment is to be produced by U.S. Huber (Qiu Bo) company, and model is Zeolex 323.
This complex reflex heat-barrier material can improve system reflective insulation efficiency.
Inorganic silicate film forming matter is the inorganic silicate that model is INOCOT 330 that Tianjin Rui Shi company limited produces
Resin.
Rutile type titanium dioxide is domestic titanium dioxide Rutile type titanium dioxide, is that Ningbo Xinfu Titanium Dioxide Co., Ltd. is raw
Producing, its model is NTR-606.
Aqueous acrylic emulsion is the pure acrylic latex that model is RS-752D that Ahmedabad richness company produces.Its solid content
Being 52~54%, minimum film formation temperature is 10 DEG C.
Organosilicon auxiliary agent is the organosilicon that model is SILRES BS-45 that company limited of Wa Ke global group of Germany produces
Resin emulsion, it has the transmitance of the highest carbon dioxide and steam, can increase the breathability of paint film and not affect paint
The compactness of film.
Silane coupler be Mai Tu company of the U.S. produce the silicone coupling agents that model is A-174, its chemical formula be γ-
(methacryloxypropyl) propyl trimethoxy silicane, can improve the hydrophobicity of paint film, makes paint film have lotus leaf effect.In this nothing
In machine reflective insulation Folium Nelumbinis formulation for coating material, because Main System is based on silicon, when its formula system directly adds silane coupler,
Silane coupler is prone to potassium silicate film forming matter and reacts, and forms tiny gel, it is therefore desirable to by silane coupler the most proportionally
It is dissolved in ethylene glycol, adds in formula, to ensure the stability of formula.
Dispersant is polycarboxylate sodium's type dispersant that model is SN-5040 that Nuo Puke company of Japan produces, and it has more
Good dispersion efficiency and system stability.
Wetting agent is the surfactant LCN407 of the alkyl polyoxyethylene ether without APEO that Germany's Clariant produces.
Defoamer is the froth breaking that the model being mainly composed of mineral oils is NXZ that Sheng Nuopuke company of Japan produces
Agent, when it can eliminate bubble and construction in tank, the most broken bubble.
Thickening agent is the hydroxyethyl cellulose of the B-30K that Samsung of Korea S produces, and its effect is the viscosity improving coating.
Buffer agent is multifunctional assistant 2-amino-2-methyl-1-propanol, wherein multifunctional assistant 2-amino-2-methyl-1-
Propanol is produced by LG-DOW department, and the model of product is AMP-95, and its effect is that the pH of coating is adjusted to 7~8.
Viscosity stabiliser be model be INOCOT 925 Tianjin Rui Shi company limited produce viscosity stabiliser, it contains
Silicone and complicated stabilizer, it is possible to inhibition system caking in early days improves the stability of product.
The preparation method of this inorganic reflective heat insulation Folium Nelumbinis coating is as follows:
(1) heat-reflecting heat-insulating powder, kieselguhr, synthetic aluminium silicate functional pigment, wollastonite and mica powder are chosen, mixing
After, prepare complex reflex heat-barrier material;
(2) stock dispersion agent, wetting agent, defoamer, thickening agent, buffer agent, complex reflex heat-barrier material and golden red are chosen
Stone-type titanium dioxide, adds and accounts for water gross mass 50~the water of 60%, with the stir speed (S.S.) high-speed stirred 30 of 1500~1800 revs/min~
40 minutes, be dispersed to fineness qualified after, make uniform sizing material 1;
(3) raw material silane coupler is chosen, after using ethylene glycol dilution, with starting material inorganic silicate film forming matter, aqueous third
Olefin(e) acid emulsion, organosilicon auxiliary agent and viscosity stabiliser add in residue water, with low speed in the stir speed (S.S.)s of 400~600 revs/min
Stir 5~10 minutes, make uniform sizing material 2;
(4) slurry 1 is added in slurry 2, with the stir speed (S.S.) stirring at low speed 20 of 400~500 revs/min~25 minutes, system
Obtain inorganic reflective heat insulation Folium Nelumbinis coating.
Embodiment 2
The inorganic reflective heat insulation Folium Nelumbinis coating that the present embodiment provides, is mainly made up of the raw material of following proportion by weight:
Inorganic silicate film forming matter 25
Complex reflex heat-barrier material 30
Rutile type titanium dioxide 8
Aqueous acrylic emulsion 11
Organosilicon auxiliary agent 4
Silane coupler 4
Ethylene glycol 2
Dispersant 0.8
Wetting agent 0.3
Defoamer 0.4
Thickening agent 0.2
Buffer agent 0.3
Viscosity stabiliser 2.5
Water 11.5
Wherein reflective insulation material is made up of the raw material of following proportion by weight:
Heat-reflecting heat-insulating powder 13
Kieselguhr 5
Synthetic aluminium silicate functional pigment 5
Wollastonite 5
Mica powder 5
The titanium with function of heat reflection that model is JR1000 that heat-reflecting heat-insulating Fen Shi Japanese empire chemical company produces
White lead.
As different from Example 1:
Dispersant is the polycarboxylic acids ammonium salt that model is SN-DISPERSANT 5027 dispersion that Nuo Puke company of Japan produces
Agent, has more preferable dispersion efficiency and system stability.
Wetting agent is surfactant B D109 that the special alcohols that LG-DOW produces does not contains APEO.
Defoamer is the molecular antifoaming agent that model is Foamstar A10 of the peaceful Chemical Manufacture of section.
Thickening agent is the association type alkali swelling thickening agent of the TT935 that LG-DOW produces.
Buffer agent is the response type silicone active clean taste of thing that model is SILRES BS198 that Wa Ke company of Germany produces
PH adjusting agent.
The preparation method of this inorganic reflective heat insulation Folium Nelumbinis coating is with embodiment 1.
Embodiment 3
The inorganic reflective heat insulation Folium Nelumbinis coating that the present embodiment provides, is made up of the raw material of following proportion by weight:
Inorganic silicate film forming matter 18
Complex reflex heat-barrier material 20
Rutile type titanium dioxide 10
Aqueous acrylic emulsion 12
Organosilicon auxiliary agent 6
Silane coupler 8
Ethylene glycol 4
Dispersant 1.0
Wetting agent 0.2
Defoamer 0.3
Thickening agent 0.3
Buffer agent 0.5
Viscosity stabiliser 1
Water 18.7.
Complex reflex heat-barrier material is made up of the raw material of following proportion by weight:
Heat-reflecting heat-insulating powder 12
Kieselguhr 4
Synthetic aluminium silicate functional pigment 4
Wollastonite 4
Mica powder 4.
As different from Example 1:
Dispersant is the polycarboxylic acids ammonium salt that model is SN-DISPERSANT 5027 dispersion that Nuo Puke company of Japan produces
The hydrophobically modified polymers of carboxylic acid type dispersant that model is OROTAN-731A that agent and Rhom and Hass produce.
Wetting agent be Germany Clariant produce the alkyl polyoxyethylene ether without APEO surfactant LCN407 and
Sodium hexameta phosphate.
Defoamer is the defoamer that the model being mainly composed of mineral oils is NXZ that Sheng Nuopuke company of Japan produces
The model based on mineral oil produced with Sheng Nuopuke company of Japan is SN-154 organic silicon defoamer.
Thickening agent is that sub-bright icepro of the hydroxyethyl cellulose that model is 250HBR and Germany produced across dragon company of the U.S. produces
The most solvent-laden non-ionic polyurethane association thickener of PUR40.
The preparation method of this inorganic reflective heat insulation Folium Nelumbinis coating is with embodiment 1.
Reference examples
The inorganic reflective heat insulation Folium Nelumbinis coating that this reference examples provides, is mainly made up of the raw material of following proportion by weight:
Inorganic silicate film forming matter 20
Heat-reflecting heat-insulating powder 13
Ground calcium carbonate 12
Rutile type titanium dioxide 12
Aqueous acrylic emulsion 10
Organosilicon auxiliary agent 3
Silane coupler 5
Ethylene glycol 3
Dispersant 0.6
Wetting agent 0.4
Defoamer 0.6
Thickening agent 0.1
Buffer agent 0.1
Viscosity stabiliser 5
Water 15.2
As different from Example 1:
Without complex reflex heat-barrier material, and only add heat-reflecting heat-insulating powder and i.e. there is the titanium dioxide of function of heat reflection
JR1000 and common fillers ground calcium carbonate.
The preparation method of this inorganic reflective heat insulation Folium Nelumbinis coating is with embodiment 1.
The performance test of Part II inorganic reflective of the present invention heat insulation Folium Nelumbinis coating
Use the inorganic reflective heat insulation Folium Nelumbinis coating made in the above embodiment of the present invention 1-3, use this area routine
Detection method detects the conventional physico-chemical properties of this inorganic reflective heat insulation Folium Nelumbinis coating, and specific performance index is as shown in table 1 below
Inorganic reflective heat insulation Folium Nelumbinis coating prepared by table 1 embodiment of the present invention 1-3 and the traditional performance of film
Sequence number |
Project |
Index |
Testing result |
1 |
Condition in container |
Without lump, in uniform state after stirring |
Qualified |
2 |
Application property |
Brush two roads accessible |
Multiple tracks spray (smearing) is coated with accessible |
3 |
Low-temperature stability |
Never degenerate |
Qualified |
4 |
Drying time (surface drying)/h≤ |
2 |
Qualified |
5 |
Appearance of film |
Normally |
Qualified |
6 |
Contrast ratio (white) >= |
0.95 |
0.98 |
7 |
Coating temperature-change resistance (3 circulations) |
Without exception |
Qualified |
8 |
Alkali resistance |
48 hours without exception |
Qualified |
9 |
Resistance to water |
96 hours without exception |
Qualified |
10 |
Stain resistance |
< 15% |
High-class product |
11 |
Abrasion resistance/time >= |
2000 |
Paint film does not damages |
12 |
Artificial weathering ageing resistance |
600h is non-foaming, do not peel off, flawless |
High-class product |
From table 1 it follows that the property indices of inorganic reflective heat insulation Folium Nelumbinis coating prepared by the present invention all reaches
Or it is better than standard GB/T/T 9755-2014.
Use the inorganic reflective heat insulation Folium Nelumbinis coating in above-described embodiment 1-3 to carry out heat-insulating property test, process of the test and
Result is as follows:
Reflective insulation application test (two): be sprayed on respectively on different aluminium sheets by the product in embodiment 1-3, sprays two
Time, after model maintenance 7 days, use the tungsten lamp of 100 watts to irradiate the one side having paint film, another side then uses temperature sense probe to carry out
Temperature survey, carries out reduced temperature rising value with common emulsion paint, and result of the test see table 2.
Inorganic reflective heat insulation Folium Nelumbinis coating reflective insulation result test in table 2 embodiment of the present invention 1-3
From the test comparison result of table 2 it can be seen that (be similar to summer high-temperature weather under the identical conditions heated up in the external world
Under), the inorganic reflective heat insulation Folium Nelumbinis coating in embodiment 1-3 and the common exterior coating of existing market selling market are (with traditional
Color stuffing, such as titanium dioxide, triple superphosphate, fine particle calcium carbonate, Kaolin, acrylic emulsion etc. are prepared) compare, model mean temperature can reduce by 25
DEG C, common exterior coating does not then reach this effect of heat insulation, and when being exposed to the sun for a long time, model temperature quickly raises.
When reference examples is relative with embodiment 1, embodiment 1 ratio adding complex reflex heat-barrier material only adds reflective insulation
The reflective insulation of the reference examples of powder JR1000 is in hgher efficiency, and specimen surface mean temperature is low 11 DEG C;Use the heat insulation material of complex reflex
Ratio is only with reflective insulation efficiency acquired by heat reflection powder advantageously.This is with complex reflex heat-barrier material, rutile titanium dioxide
Powder film forming difference powder shape of particle, particle diameter collocation film forming, and and inorganic silicate film forming matter, base material carry out cross-linking, selfing
The paint film that connection performance is fine and close, thus the reflective insulation performance reaching excellence is relevant.
Use complex reflex heat-barrier material, the reflective insulation performance of excellence can not only be obtained, also can reduce formula simultaneously
Cost, is common rutile-type at heat-reflecting heat-insulating powder on the market or the similar titanium dioxide with reflective insulation effect at present
5~7 times of titanium dioxide, and use the composite wood of kieselguhr, wollastonite, synthetic aluminium silicate, mica powder and the preparation of reflective insulation powder
Material, greatly reduces coating cost.
Lotus leaf effect application test (three): the product in embodiment 2 is sprayed on model, after being dried 7 days, test surfaces
Lotus leaf effect, experimental result is shown in Fig. 1, from figure 1 it appears that A figure is common coating (titanium dioxide 16%, filler 30%, third
Olefin(e) acid emulsion 30%), B figure is inorganic reflective heat insulation Folium Nelumbinis coating, and B figure has obvious Folium Nelumbinis hydrophobic effect.
Test comparison result from Fig. 1 it can be concluded that go together common sell with embodiment 2 and market
Coating is compared, and uses the reflective insulation new formula of Folium Nelumbinis coating in the present invention so that paint film has the lotus leaf effect of excellence.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-described embodiment
Limit, the change made under other any spirit without departing from the present invention and principle, modify, substitute, combine, simplify,
All should be the substitute mode of equivalence, be included in protection scope of the present invention.