Low-temperature quick-drying solvent-free epoxy coating for drinking water tank and preparation method thereof
An epoxy coating, solvent-free technology, applied in the field of coating manufacturing, can solve the problems of slow reaction speed, long hardening time, difficult to adapt to the requirements of coating process, etc., and achieve the effect of fast drying speed
Inactive Publication Date: 2011-04-13
COSCO KANSAI PAINT & CHEM TIANJIN +2
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The invention relates to a low-temperature quick-drying solvent-free epoxy coating for a drinking water tank and a preparation method thereof, wherein epoxy resin, a reactive diluent, a dispersant, a silane coupling agent, a thixotropic additive, titanium dioxide, talcum powder, a defoamer, a modified aromatic amine curing agent and a catalyst are used for constituting an A component and a B component; when in use, the A component and the B component are mixed according to the mixing weight ratio of 7.5/1-8.5/1, the mixing viscosity under the low-temperature condition of 10-15 DEG C is 3000-5000mPa.s, the operable time is 1-2 hours, the semi-hardening time is 6-8 hours, and the hardening time is 20-24 hours. The epoxy coating has excellent coating constructability and drying property of acoating film. The epoxy coating is solvent-free and non-toxic, has low viscosity under the low-temperature condition of 10 DEG C, and ensures normal construction can be carried out without taking heating and thermal insulation measures; simultaneously, the drying speed of the coating film is fast, and the requirement of low-temperature construction process in winter can be completely met. The coating is particularly applicable to drinking water tanks of naval ships, as well as coating protection of the inner walls of large storage tanks in the food industry under the low-temperature condition.
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Property | Measurement | Unit |
Flexibility | 2.0 | mm |
Adhesion | 6.0 | |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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