Summary of the invention
The technical problem that the present invention will solve is, overcomes the deficiency of prior art, and a kind of good stability is provided, application property and good heat-insulation effect, and elasticity and good water-proof effect, not easy to crack, water-based external application elasticity reflective heat-insulation paint and working method thereof that environmental pollution is few.
The present invention solve the technical problem the technical scheme that is adopted:
The present invention's water-based external application elasticity reflective heat-insulation paint, processed by the raw material of following mass fraction: elastic pure acrylic acid emulsion 30-60 part, hollow ceramic pearl 3-10 part, pigment 10-25 part, filler 5-20 part, water 15-30 part, wetting dispersing agent 0.2-1.0 part, skimmer 0.3-0.8 part, antimildew disinfectant 0.1-1.0 part, Natvosol 0.2-0.5 part, thickening material 0.3-1.0 part, frostproofer 1-3 part, film coalescence aid 0.4-0.8 part, flow agent 0.2-0.6 deal, neutralizing agent are regulated the amount of pH value for 8-9.
Said elastic pure acrylic acid emulsion is commercially available chemical self-cross linking type PEMULEN TR2 water dispersion; Its minimum film-forming temperature<5 ℃, solid content is 45-55% (preferred 50%), median size is 0.1 ± 0.01 micron; Elongation is 500 ± 10%, and tensile strength is 10 ± 1N/ ㎜
2
Said hollow ceramic pearl preferred density is 0.12-0.50g/ ㎝
3, wall thickness is the 1-2 micron, particle diameter 15-100 micron;
Said pigment optimization Rutile type Titanium Dioxide;
The mixture of the preferred kaolin of said filler, sericite, wherein the mass ratio of kaolin and sericite is 1:1;
Said wetting dispersing agent is commercially available ammonium acrylate dipersant;
The preferred mildew-resistant stable form of said Natvosol;
The mixture of one or more in the preferred terepthaloyl moietie of said frostproofer, the Ucar 35;
The preferred termil of said antimildew disinfectant,, one or more the mixture in 2-n-octyl-4-isothiazoline-3-ketone;
The excellent commercial polyurethane association type of said flow agent compound;
The mixture of one or more in the preferred ethylene glycol monobutyl ether of said film coalescence aid, ester alcohol 12, dipropylene glycol butyl ether, terepthaloyl moietie, propylene-glycol ethyl ether, the Ucar 35 butyl ether;
The mixture of one or more in the preferred commercially available modified polyacrylic acid sodium of said thickening material, modified polypropene acid amide, the non-ionic polyurethane compound;
The mixture of one or more in the preferred dimethylethanolamine of said neutralizing agent, thanomin, ammoniacal liquor, the 2-amino-2-methyl-1-propanol (AMP-95);
Said skimmer is modified dimethyl polysiloxane solution or MO, or their mixture;
The working method of the present invention's water-based external application elasticity reflective heat-insulation paint may further comprise the steps:
(1) water is added mixer, under 600-800 rev/min stirring, add Natvosol, stirring to Natvosol is the transparent granular liquid that do not have;
(2) skimmer of adding wetting dispersing agent, antimildew disinfectant, 1/2 formula ratio after stirring, adds pigment, filler again, improves mixing speed to 1000-1600 rev/min, stirs;
(3) compound that step (2) is stirred is dispersed to fineness through grinding and reaches the 40-60 micron, and the limit is stirred the limit with 300-500 rev/min rotating speed and added film coalescence aid, frostproofer, elastic pure acrylic acid emulsion in the paint pot, stirs;
(4) the compound pH value that stirs with neutralizing agent regulating step (3) reaches 8-9, adds skimmer, the flow agent of thickening material, residue 1/2 formula ratio again, stirs;
(5) in step (4) gained compound, add the hollow ceramic pearl, stir, fully evenly sneak in the paint vehicle until the hollow ceramic pearl; Use 10-20 purpose screen filtration then.
The present invention's water-based external application elasticity reflective heat-insulation paint; Have following characteristics: 1) thermal insulation is good: heat is completely cut off in the outside; Thereby suppress buildings or the heating of tank body own, outdoor temperature is high more, and its heat insulation and heat control effect is obvious more; Compare with common coating, its actual indoor/outdoor temperature-difference can reach 10-15 ℃; 2) good endurance: can completely cut off the solar ray more than 85%, prevent the aging of buildings that ultraviolet ray causes or tank body; 3) water resistance is good: outside surface is smeared the coating of ceramic hollow packing material, can resist the erosion of ultraviolet ray, wind and rain, and waterproof effect and coiled material are suitable; 4) uphold excellent performance, elongation is higher than 300%, to the strong adhesion and the high resilience on surfaces such as most of material of construction, metal, reduces surface stress and retractility crackle; 5) feature of environmental protection: water-based, nontoxic, tasteless, pollution-free, meet the Green Product standard.
Embodiment
Below in conjunction with specific embodiment the present invention is done further explain.
Embodiment 1
The water-based external application elasticity reflective heat-insulation paint of present embodiment is processed by the raw material of following quality: elastic pure acrylic acid emulsion (solid content 50%) 45kg, hollow ceramic pearl (density 0.42g/ ㎝
3) 4 kg, Rutile type Titanium Dioxide 20 kg, kaolin 50 kg; Sericite 50 kg, water 20.6 kg, 1124 dispersion agents, 0.6 kg; X-405 wetting agent 0.2 kg, Defoamer334 skimmer 0.5kg, antimildew disinfectant Skane M-8 0.5kg; Natvosol 250HBR 0.4kg, thickening material SN-612 0.6kg, frostproofer Ucar 35 2kg; Film coalescence aid ester alcohol 12 Texanol0.5kg, DSX3220 flow agent 0.4 kg, neutralizing agent 2-amino-2-methyl-1-propanol (AMP-95) 1.0 kg.
The working method of the water-based external application elasticity reflective heat-insulation paint of present embodiment may further comprise the steps:
(1) water is added mixer, under 600 rev/mins stirring, add Natvosol, stirring to Natvosol is the transparent granular liquid that do not have;
(2) add the skimmer of wetting dispersing agent, antimildew disinfectant, 0.25kg, after stirring, add pigment, filler again, improve mixing speed to 1200 rev/min, stir;
(3) compound that step (2) is stirred is dispersed to fineness through grinding and reaches the 40-60 micron, and the limit is stirred the limit with 400 rev/mins rotating speed and added film coalescence aid, frostproofer, elastic pure acrylic acid emulsion in the paint pot, stirs;
(4) the compound pH value that stirs with neutralizing agent regulating step (3) reaches 8.5, adds skimmer, the flow agent of thickening material, residue 0.25kg again, stirs;
(5) in step (4) gained compound, add the hollow ceramic pearl, stir, fully evenly sneak in the paint vehicle until the hollow ceramic pearl; Use 20 purpose screen filtrations then, the viscosity that promptly gets coating products is 116-120KU.
The technical indicator of the salient features of the water-based external application elasticity reflective heat-insulation paint of present embodiment and the building trade standard JG/T235-2008 of the People's Republic of China " architectural reflective heat-insulation paint " and the building trade standard JG/T172-2005 of the People's Republic of China " elasticity Building Heat coating " is relatively seen table 1.
Can know by table 1; The present invention's water-based external application elasticity reflective heat-insulation paint; Can reach the technical indicator of architectural reflective heat-insulation paint; Can reach the technical indicator of elasticity Building Heat coating again,, be particularly suitable for being applied in building trade so it possesses the performance of reflective heat-insulation paint and elasticity Building Heat coating simultaneously.