Background technology
At present, energy-saving and emission-reduction have become very important work of national government.In China's building trade, the thermal isolation technique requirement was just proposed before 20 years, become industry standard at present, particularly in northern, these extremely cold, very hot areas, south, building heat insulation has become the industry Compulsory Feature.Aspect building, insulation, external wall outer insulation etc. within the walls in the heat-insulation and heat-preservation concrete measure has mainly are to carry out the link plate construction with cystose.
Building coating is the indispensable decoration of building trade, protecting function material, no matter is indoor or outdoor, all must carry out coating protection.Indoorly be painted with the master, and outdoor exterior wall is main decorative form with three-dimensional pattern with flat.The exterior wall elastic napping coating is approved by vast building trade especially by force and is liked generally adopted by building trade at present, yet present exterior wall elastic napping coating not possessing the heat-insulation and heat-preservation function because of it has cracking resistance, decorative pattern exquisiteness, stereoeffect.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, and a kind of exterior wall elastic napping coating with heat-insulation and heat-preservation function is provided.
For solving above technical problem, the present invention adopts following technical scheme:
A kind of exterior wall elastic napping coating is a benchmark with the gross weight of coating, and it is made up of following component: elastomeric propylene yogurt liquid 40%-50%; Water 10%-20%; Titanium dioxide 10%-15%; Pearlstone 5%-8%; Hollow glass micropearl 3%-5%; Vermiculite power 2%-5%; Sericite in powder 3%-5%; Flyash 5%-8%; Antifreezing agent 1%-2%; Defoamer 0.3%-0.8%; Sterilant 0.1%-0.15%; Dispersion agent 0.1%-0.4%; Alkali swelling thickening material 1%-1.5%, cellulose thickener 0.1%-0.2%; Wetting agent 0.1%-0.15%; Film coalescence aid 0.5%-1%.
According to the present invention, described elastomeric propylene yogurt liquid can be the pure acrylic acid synthetic emulsion, also can be phenylethene modified vinylformic acid synthetic emulsion, or both arbitrary combination.Frostproofer can be an ethylene glycol, also can be propylene glycol, or both arbitrary combination.Titanium dioxide can be the import rutile-type, also can try homemade rutile-type, or both arbitrary combination.Defoamer, sterilant, dispersion agent, alkali swelling thickening material, cellulose thickener are aqueous architectural coating reagent commonly used.
Preferably, the grain diameter of hollow glass micropearl is between 100 microns-1000 microns.The grain diameter preferable range of flyash, vermiculite power is 1 micron-2000 microns.The grain diameter of pearlstone is between 0.1 millimeter-10 millimeters rice.Pearlstone can be one or more the combination in open ball, obturator-type ball, optimization type, the surperficial clinkering type pearlstone.
Because the enforcement of above technical scheme, the present invention compared with prior art has following advantage:
Coating of the present invention is by the combination of hollow glass micropearl, pearlstone, vermiculite power and the flyash of specified proportion, reach the propagation of the light wave that hinders different wave length, sound wave, Thermal Infra-Red, play heat insulation, heat preservation effect, give traditional exterior wall elastic napping coating with the heat-insulation and heat-preservation function; Simultaneously, add other auxiliary component in the coating to keep the decoration and the defencive function of coating.
Embodiment
The present invention will be further described in detail below in conjunction with specific embodiment, but the invention is not restricted to these embodiment.
Embodiment 1
A kind of elastic napping coating for thermal insulating external wall, by weight, its composition of raw materials is as follows:
Elastomeric propylene yogurt liquid 2,438 45%; Titanium dioxide 828 12%; Ethylene glycol 1.2%; Defoamer SPA-202 0.35%; Sterilant 205 0.12%; Wetting agent SF-1 0.12%; Film coalescence aid (lauryl alcohol fat) 0.8%; Cellulose thickener HBR 250 0.15%; Dispersion agent 5,040 0.2%; Alkali swelling thickening material ASE-60 1.2%; Hollow glass micropearl (200 microns of median sizes) 3.5%; Swelling perlite powder (closed pore ball-type, 0.2 millimeter of median size) 6%; Vermiculite power 3%; Sericite in powder 3.5%; Flyash filler 6%; Water 16.86%.
The preparation technology of above-mentioned coating is as follows: water is dropped into a mixing bowl, under 300-500 rev/min of speed, add cellulose thickener, stir and add dispersion agent after 10 minutes, defoamer, wetting agent, titanium dioxide, under 800-1200 rev/min of speed, disperseed 30 minutes, sand milling, to fineness less than 50 microns, under 300-500 rev/min of speed, add elastomeric propylene yogurt liquid then, antifreezing agent, film coalescence aid, alkali swelling thickening material, sterilant, stir 30 minutes to even, change kneader over to, under agitation slowly, add hollow glass micropearl in batches, pearlstone, vermiculite power, sericite in powder, flyash is to evenly promptly getting described coating.
The key technical indexes of exterior wall elastic napping coating is as follows:
Container internal state: easily stir;
Paint film appearance: smooth and continuous;
Surface drying 2h;
Do solid work 7h;
Thermal conductivity 0.04W/ (m. ℃).
Embodiment 2
A kind of elastic napping coating for thermal insulating external wall, by weight, its composition of raw materials is as follows: elastomeric propylene yogurt liquid 2,438 48%; Titanium dioxide 828 10%; Ethylene glycol 1.5%; Defoamer SPA-2020.3%; Sterilant 205 0.11%; Wetting agent SF-1 0.13%; Film coalescence aid (lauryl alcohol fat) 0.9%; Cellulose thickener HBR 250 0.12%; Dispersion agent 5,040 0.18%; Alkali swelling thickening material ASE-601.1%; Hollow glass micropearl (100 microns of median sizes) 3.4%; Swelling perlite powder (opening ball-type, 0.15 millimeter of median size) 7%; Vermiculite power 2%; Sericite in powder 4%; Flyash filler 7%; Water 14.26%.
The preparation technology of coating is with embodiment 1.
The key technical indexes of exterior wall elastic napping coating is as follows:
Container internal state: easily stir;
Paint film appearance: smooth and continuous;
Surface drying 2h;
Do solid work 8h;
Thermal conductivity 0.05W/ (m. ℃).
Coating according to the present invention is when construction, and it is flat to require building wall to want water in advance mud putty to criticize, drying, brushing back cover coating 1-2 road, drying.Then, the coating of the present invention of constructing, method can be for spraying, throwing be coated with, bullet is coated with, and thickness is advisable for the 2-3 millimeter, carries out roll-in with grain roller at once then, forms uniform decorative pattern.Can brush coloured finish paint or clear finish behind the complete drying.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.