Coating process: production and operation procedures for emulsion paint

Core tips: latex paint is composed of emulsion, pigment, filler, auxiliaries and water Emulsion is the most important raw material for the performance of latex paint It is usually synthetic resin emulsion The common varieties of synthetic resin emulsion are polyvinyl acetate, acetic acid, vinegar, vinegar, TERT, VAE, styrene, acrylic, silicon, acrylic, fluorocarbon emulsion, etc., which are made of some petrochemical raw materials such as vinyl acetate, acrylic ester, styrene and so on It has the properties of adhesion, water resistance, alkali resistance and anti-aging Emulsion paint is mostly white or light color based on white Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Paint Home: latex paint is composed of emulsion, pigment, filler, auxiliaries and water Emulsion is the most important raw material for the performance of latex paint It is usually synthetic resin emulsion The common varieties of synthetic resin emulsion are polyvinyl acetate, acetic acid, vinegar, vinegar, TERT, VAE, styrene, acrylic, silicon, acrylic, fluorocarbon emulsion, etc., which are made of some petrochemical raw materials such as vinyl acetate, acrylic ester, styrene and so on It has the properties of adhesion, water resistance, alkali resistance and anti-aging Most of the emulsion paint is white or light color based on white, and titanium dioxide and lithopone are mainly used as pigments Most color pigments are harmless to human body But poor pigments contain lead The filler plays a filling role Commonly used fillers include calcium carbonate (white powder), talcum powder, kaolin (porcelain clay), barium sulfate (barite powder), wollastonite powder, etc., which are natural mineral raw materials and harmless to human body There are many ingredients in the auxiliaries There are additives, film-forming AIDS and fungicides In order to prevent the emulsion paint from settling in the process of storage and from falling when brushing the vertical surface, additives such as additives should be added, commonly cellulose ethers In order to dry the emulsion paint film and prolong the construction season under the condition of low temperature, some film-forming aids are usually added by manufacturers, such as polyols and their derivatives Emulsion paint is easy to be polluted by microorganism during storage or after drying and film forming In order to prevent the growth of microorganism, the manufacturer should add bactericide Production feeding process: water; microbicide; film forming AIDS; thickener; pigment dispersant; defoamer, wetting agent; pigments and fillers; emulsion; pH regulator; other auxiliaries; water and / or thickener solution Operating procedures: put the water into the high-speed mixer first, and then add the microbicide, film-forming agent, thickener, pigment dispersant, defoamer and wetting agent at low speed After mixing evenly, sieve the pigment and filler slowly into the vortex stirred by the impeller Soon after adding pigments and fillers, the abrasives become thicker At this time, the distance between the impeller and the bottom of the mixing barrel shall be adjusted to make the vortex into a shallow basin After adding the finishing filler, the impeller speed shall be increased (the linear speed along the wheel is about 1640m / min) In order to prevent excessive temperature rise, it is necessary to stop for cooling, and scrape off the color and filler adhering to the barrel edge when stopping Measure the fineness of the blade at any time When the fineness is qualified, the dispersion is completed After dispersing, slowly add emulsion and pH adjustment agent at low speed, then add other auxiliaries, then adjust the viscosity with water and / or thickener solution, screen out the material Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,