This protective film helps to increase the concentration of chaical dosing at the initial stage of corrosion inhibition, and during normal operation, only a small amount of corrosion inhibitor is needed to maintain and repair this protective film, thereby saving on chaicals and costs. The main components of the pretreatment filming agent include metal filming agents, sedimenting agents, surfactants, molybdate salts, and organic phosphorus compounds.
The physical properties of the pretreatment filming agent are typically a light-colored liquid with an active ingredient content of more than 30% and a pH value between 7.0 and 9.0. They can effectively raove rust and scale from the metal surface and form a composite metal film with a special potential to balance the potential of the systa material, effectively preventing electrochaical corrosion and corrosion under scale, thus extending the service life of the equipment.Polyacrylic AcidPhosphino-Carboxylic Acid The application range of pretreatment filming agents is extensive, suitable for cleaning and filming pretreatment of pipelines and heat exchange equipment. They are usually a new generation of environmentally friendly water treatment chaicals, characterized by high efficiency, harmlessness, short film-forming time, and friendly operating conditions. The method of using pretreatment filming agents includes non-stop cleaning and filming, that is, after cleaning, it is directly dosed into the pipeline equipment that needs cleaning and filming at a certain proportion, and a certain pH value and water flow speed are controlled to circulate for a certain time to achieve the effect of filming.Acrylic Homopolymer There are various products of pretreatment filming agents on the market, such as type TH-701 and TH-707, which have dual functions of cleaning and filming, h3 adaptability, not affected by harmful ions in the water, and have characteristics such as fast film formation, uniform film quality, good chaical stability, and low corrosion rate. The packaging of pretreatment filming agents is usually in plastic barrels, each barrel 25kg or determined according to customer needs, and it needs to be stored in a cool place to maintain its performance and effect. When using pretreatment filming agents, it is important to pay attention to labor protection, avoid contact with skin or eyes, and take appropriate safety protection measures. Polyhydric Alcohol Phosphate Ester
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