64results about How to "Short drying time" patented technology

The invention discloses a thermal insulation real stone paint, which is made of the following components in parts by weight: 60 to 80 parts of natural colored sand, 20 to 30 parts of silicon acrylic emulsion, and 3 to 8 parts of hollow glass beads , 5-10 parts of silica airgel, 0.5-1.2 parts of hydroxyethyl cellulose, 0.3-0.6 parts of fungicide, 0.4-0.8 part of antifreeze, 20-30 parts of water, 0.5-0.8 part of defoamer, 1-3 parts of propylene glycol monoethyl ether, 1-3 parts of ethylene glycol monobutyl ether, 10-20 parts of diatom mud. The production process of the present invention is simple and convenient to manufacture. It has good thermal insulation performance and decorative effect, and at the same time, it also has the advantages of antifreeze, waterproof, acid and alkali corrosion resistance, non-toxic environmental protection, never fading, and the like.

The invention relates to the field of chemical paints, particularly an antifouling acrylic latex paint. The latex paint comprises 55-75 parts of acrylic emulsion, 15-25 parts of film-forming assistant, 1.5-2.5 parts of sodium hydroxide, 20-45 parts of titanium white, 10-35 parts of ethylene glycol, 3-6 parts of methane-siliconic acid, 100-200 parts of wetting and dispersing agent, 6-10 parts of ground calcium carbonate, 15-35 parts of defoaming agent, 6-9 parts of sodium polyphosphate dispersing agent, 3-4 parts of nano silicon dioxide, 25-45 parts of preservative and 10-30 parts of deionized water. The antifouling acrylic latex paint can be coated on the external wall by scratch coating, spray coating or the like, and the drying time is short. The latex paint has the advantages of favorable water resistance, favorable fouling resistance, favorable mold and bacterium resistance, favorable rubbing resistance, favorable weather resistance, favorable ultraviolet resistance and excellent stain resistance, and can be widely used in offices, classrooms and families. The paint is simple in manufacturing process and convenient to operate, and has long service life.

The invention discloses a color master batch production drying device capable of accelerating air drying and a use method thereof, and relates to the technical field of color master batch production drying. The color master batch production drying device comprises a drying cylinder and a feeding mechanism, wherein a feeding hopper is arranged at the top end of the drying cylinder, the feeding mechanism is arranged in the drying cylinder and located under the feeding hopper, an air heater is arranged on the side wall of the drying cylinder, the air outlet of the air heater extends into the drying cylinder through an air guide pipe, a loading hopper is fixedly arranged at the top end in the drying cylinder through a cross beam, a stirring hopper is located in the loading hopper, a discharging notch is formed in the side wall of the stirring hopper, and a discharging port is formed in the outer wall of the loading hopper. According to the invention, to-be-dried color master batches can be rapidly fed into the drying cylinder in batches, the fed single-time small-weight color master batches are dried through the air heater, and the dried color master batches are guided to the heat dissipation mechanism through the discharging mechanism and cooled through the heat dissipation mechanism, so that the situation that the temperature of the dried color master batch is too high, and direct reprocessing operation of the next procedure is affected is avoided, and the production efficiency of the color master batch is improved.

The invention relates to a large-granularity phenyl bis(2,4,6-trimethylbenzoyl) phosphine oxide crystal form and a crystallization method thereof. The method comprises the following steps: adding a phenyl bis(2,4,6-trimethylbenzoyl)phosphine oxide solid into a good solvent, mixing under the action of stirring, heating the material liquid to 50-70 DEG C to completely dissolve the material, and thencooling to room temperature; and adding a poor solvent to separate out a phenyl bis(2,4,6-trimethylbenzoyl) phosphine oxide crystal, growing the crystal at a constant temperature for 10-60 minutes after the poor solvent is added, then filtering magma, and drying the filter cake to obtain the phenyl bis(2,4,6-trimethylbenzoyl) phosphine oxide crystal product. According to the invention, the new crystal form is in regular block shape, complete and free of coalescence; and the crystallization method disclosed by the invention is constant-temperature solventing-out crystallization, and has the following characteristics that the process is simple, the conditions are mild, the operation time is short, the yield is higher than 90%, the purity reaches more than 99%, the raw materials and the auxiliary materials are cheap and easy to obtain, the environmental pollution is small, and the industrial production is easy to realize.