A kind of aqueous fire-proof coating and preparation method thereof
Technical field
The present invention relates to a kind of aqueous fire-proof coatings and preparation method thereof.
Background technology
Fireproof coating, which is one kind, can improve material refractory ability, slow down propagation of flame spread speed, or in certain time
Interior energy prevents the coating of burning, can also be called anti-flaming dope.As environmental requirement is higher and higher and the hair of new technologies and materials
Exhibition, aqueous fire-proof coating will replace organic solvent type fireproof coating completely, this is inevitable development trend.Currently, water-based fireproof
The research of coating is burning hot, many aqueous fire-proof coating products occurs, makes a lot of progress, but existing water-based fireproof applies
There is apparent performance deficiency in material product, such as:102876172 B of CN disclose a kind of aqueous fire-proof coating, due to introducing
Expanded graphite, can only do the coating of grey and black, and reflecting rate is relatively low, if shone for the indoor high-power light of needs
Bright, energy consumption is more, and non-ignitable grade is also not achieved in the flame retardant property of the aqueous fire-proof coating;103242721 B of CN are disclosed
A kind of fireproof coating, flame retardant property have reached non-ignitable grade, but non-due to introducing more water-soluble substances and non-white
Transparent material, whiteness is relatively low, and reflecting rate is relatively low, and water resistance is also poor.
Therefore, it is necessary to develop, a kind of excellent fireproof performance, reflecting rate be high, aqueous fire-proof coating of excellent combination property.
Invention content
The purpose of the present invention is to provide a kind of aqueous fire-proof coatings and preparation method thereof.
The technical solution used in the present invention is:
A kind of aqueous fire-proof coating is made of the raw material of following mass percentage:
Organic binder:20%~30%;
Fire retardant:20%~50%;
White color stuffing:20%~30%;
Auxiliary agent:0~5%;
Water:Surplus.
The organic binder is styrene-acrylic emulsion, acrylate and vinyl acetate emulsion, silicone acrylic emulsion, chlorine acrylic emulsion, pure-acrylic emulsion, polyurethane breast
At least one of liquid.
The fire retardant is organic phosphate, hypophosphites, Quadrafos, pyrophosphate, melamine, dicyandiamide, three
Poly cyanamid cyanurate, polyphosphoric acid melamine, melamine pyrophosphate, magnesium hydroxide, aluminium hydroxide, Polyborosiloxane, boron
At least one of acid, zinc borate, 3.5 hydrate zinc borates.
The whiteness of the fire retardant is more than 96.
The white color stuffing is at least one in titanium dioxide, lithopone, calcium carbonate, barium sulfate, talcum powder, silicon powder
Kind.
The whiteness of the white color stuffing is more than 99.
The auxiliary agent is at least one of pH adjusting agent, wetting dispersing agent, thickener, auxiliary rheological agents, fungicide.
The preparation method of above-mentioned aqueous fire-proof coating, includes the following steps:
1) water and auxiliary agent are added in dispersing apparatus, are uniformly dispersed under conditions of vacuumizing;
2) white color stuffing and fire retardant is added, temperature of charge is risen to 80 DEG C~90 DEG C using shear heat, it is lasting to stir
Disperse 1.5~2.5h;
3) be passed through cooling circulating water, temperature of charge be down to room temperature, organic binder is added, be dispersed to 20 μm of fineness with
Under, sieving obtains aqueous fire-proof coating.
The beneficial effects of the invention are as follows:The flame retardant property of the aqueous fire-proof coating of the present invention reaches GB8624-2006《Building
Material and product burns grading performance》A grades defined (non-ignitable rank), reflecting rate is more than 95%, safety and environmental protection, paint film after film forming
Cracking resistance and water resistance it is excellent, adhesion strength on base material is high.
1) white color stuffing and fire retardant are warming up to 80 DEG C~90 DEG C by the present invention using shear heat, carry out high temperature mixing,
White color stuffing and fire-retardant particles can be dispersed to its minimum size, promote between them it is mutual be fitted into, significantly
Improve the flame retarding efficiency of fire retardant;
2) acrylate and vinyl acetate emulsion, chlorine acrylic emulsion etc. in the present invention by thermally decompose itself can be at there is association between charcoal, with fire retardant
Same synergistic effect;
3) polyaminoester emulsion in the present invention can be discharged the inert gases such as ammonia, nitrogen by thermal decomposition, and its decomposition obtains
Isocyanates can also improve the flame retardant property of aqueous fire-proof coating at charcoal.
Specific implementation mode
A kind of aqueous fire-proof coating is made of the raw material of following mass percentage:
Organic binder:20%~30%;
Fire retardant:20%~50%;
White color stuffing:20%~30%;
Auxiliary agent:0~5%;
Water:Surplus.
Preferably, the organic binder be styrene-acrylic emulsion, acrylate and vinyl acetate emulsion, silicone acrylic emulsion, chlorine acrylic emulsion, pure-acrylic emulsion,
At least one of polyaminoester emulsion.
Preferably, the fire retardant be organic phosphate, it is hypophosphites, Quadrafos, pyrophosphate, melamine, double
Cyanamide, melamine cyanurate, polyphosphoric acid melamine, melamine pyrophosphate, magnesium hydroxide, aluminium hydroxide, poly- silicon boron
At least one of oxygen alkane, boric acid, zinc borate, 3.5 hydrate zinc borates.
Preferably, the whiteness of the fire retardant is more than 96.
Preferably, the white color stuffing is in titanium dioxide, lithopone, calcium carbonate, barium sulfate, talcum powder, silicon powder
It is at least one.
Preferably, the whiteness of the white color stuffing is more than 99.
Preferably, the auxiliary agent is at least one in pH adjusting agent, wetting dispersing agent, thickener, auxiliary rheological agents, fungicide
Kind.
The preparation method of above-mentioned aqueous fire-proof coating, includes the following steps:
1) water and auxiliary agent are added in dispersing apparatus, are uniformly dispersed under conditions of vacuumizing;
2) white color stuffing and fire retardant is added, temperature of charge is risen to 80 DEG C~90 DEG C using shear heat, it is lasting to stir
Disperse 1.5~2.5h;
3) be passed through cooling circulating water, temperature of charge be down to room temperature, organic binder is added, be dispersed to 20 μm of fineness with
Under, sieving obtains aqueous fire-proof coating.
The present invention is made further explanation and description with reference to specific embodiment.
Embodiment 1:
A kind of aqueous fire-proof coating, raw material composition are as shown in the table:
A kind of raw material of 1 aqueous fire-proof coating of table forms table
Raw material |
Mass percent (%) |
Acrylate and vinyl acetate emulsion EZ 1120 |
20 |
Ammonium polyphosphate EPFR-APP262 |
30 |
Magnesium hydroxide |
7 |
Titanium dioxide |
15 |
Lithopone |
10 |
Wetting dispersing agent |
2 |
Auxiliary rheological agents |
1 |
Water |
15 |
Total amount |
100 |
Embodiment 2:
A kind of aqueous fire-proof coating, raw material composition are as shown in the table:
A kind of raw material of 2 aqueous fire-proof coating of table forms table
Raw material |
Mass percent (%) |
Chlorine acrylic emulsion EZ 3066 |
23 |
Polyphosphoric acid melamine MPP-300 |
20 |
Zinc borate |
10 |
Lithopone |
15 |
Calcium carbonate |
10 |
Wetting dispersing agent |
1.5 |
Auxiliary rheological agents |
1 |
Fungicide |
0.5 |
Water |
19 |
Total amount |
100 |
Embodiment 3:
A kind of aqueous fire-proof coating, raw material composition are as shown in the table:
A kind of raw material of 3 aqueous fire-proof coating of table forms table
Raw material |
Mass percent (%) |
Polyaminoester emulsion Dispercoll U53 |
21 |
Melamine cyanurate MCA-25 |
30 |
Organic hypo-aluminum orthophosphate OPS 330 |
10 |
Talcum powder |
12 |
Silicon powder |
8 |
Wetting dispersing agent |
1.5 |
Fungicide |
0.5 |
Water |
17 |
Total amount |
100 |
Embodiment 4:
A kind of aqueous fire-proof coating, raw material composition are as shown in the table:
A kind of raw material of 4 aqueous fire-proof coating of table forms table
Raw material |
Mass percent (%) |
Acrylate and vinyl acetate emulsion EZ 1120 |
15 |
Polyaminoester emulsion Dispercoll U53 |
10 |
Ammonium polyphosphate EPFR-APP262 |
15 |
Organic hypo-aluminum orthophosphate OPS 330 |
13 |
Titanium dioxide |
16 |
Silicon powder |
12 |
Wetting dispersing agent |
2.5 |
Thickener |
0.5 |
Auxiliary rheological agents |
1 |
Water |
15 |
Total amount |
100 |
Embodiment 5:
A kind of aqueous fire-proof coating, raw material composition are as shown in the table:
A kind of raw material of 5 aqueous fire-proof coating of table forms table
Raw material |
Mass percent (%) |
Polyaminoester emulsion Dispercoll U53 |
27 |
Melamine cyanurate MCA-25 |
30 |
Aluminium hydroxide |
12 |
Lithopone |
12 |
Silicon powder |
8 |
Wetting dispersing agent |
1 |
Water |
10 |
Total amount |
100 |
Test case:
The aqueous fire-proof coating prepared to Examples 1 to 5 is tested for the property, and test result is as follows shown in table:
The performance test results of the aqueous fire-proof coating of 6 Examples 1 to 5 of table
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.