Common sense of paint: what should be paid attention to in the use of emulsion?

The core point is that emulsion is the base material of latex paint, and it is quasi stable in thermodynamics Many external factors may cause the destruction of stable system Therefore, attention should be paid to the following factors when using latex to prepare coatings (1) The service life of the polymer varies with different systems - generally speaking, at least half a year In the longer term, the emulsion will deteriorate due to its decomposition, which will make the emulsion disperse Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction: since its establishment, Shenyang punde Construction Fire Engineering Co., Ltd has cultivated a group of professional construction teams with excellent equipment, rich experience and serious responsibility with advanced and scientific management methods and strict engineering quality assurance and after-sales service system It has undertaken a number of fire system installation projects, which has been praised by customers Every idea and special requirement of you will be fully considered by us and fully realized in the construction technology, which will become the cornerstone of our successful long-term development We are looking forward to your invitation, to provide you with quality services and high-quality technical support! All construction coatings have passed ISO9001 Coatings home: emulsion is the base material of latex paint, and it is in quasi steady state in thermodynamics Many external factors may cause damage to the stable system Therefore, attention should be paid to the following factors when using latex to prepare coatings (1) The service life of the polymer varies with different systems - generally speaking, at least half a year In the longer term, the emulsion deteriorated due to its decomposition The dispersion and colloidal properties of the emulsion change In addition, the adsorption of surfactants on the surface of the emulsion particles will permeate the polymer particles in the storage process, resulting in solubilization Therefore, the adsorption concentration of surfactants on the particle surface will be reduced, thus reducing the stability of the emulsion In addition, collisions between emulsion particles due to Brown motion may lead to emulsion condensation and demulsification Therefore, we should pay attention to the storage period of the emulsion If it is used beyond the storage period, a small test shall be carried out first, and whether it can be used shall be determined according to the test results (2) electrolytes affect the polymer emulsion Adding electrolytes (such as Na+ and Ca2+ ions) can neutralize the interfacial charges on the surface of latex particles, thereby reducing the surface potential and diffusing the electric double layer to compress The more electrolyte ions are, the greater the influence will be Pay attention to avoid mixing such substances (3) in the process of storage and transportation, we should pay attention to the insulation and antifreeze in the process of storing and transporting the weather The water in the emulsion will freeze at 0 degrees Celsius and expand in volume The ice crystals will cause the polymer particles to be subjected to tremendous pressure, thus forcing the particles to merge with each other, resulting in demulsification -Generally, the lower the temperature, the deeper the freezing, the faster the failure speed The storage temperature of the emulsion is best at 5~30 C 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,