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    Home > Coatings News > Paints and Coatings Market > Coating classification: critical pigment volume concentration of coating formula (CPVC)

    Coating classification: critical pigment volume concentration of coating formula (CPVC)

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: when the pigment formula is very small, the amount of emulsion is very large The base material in the coating can wet and wrap up the pigment particles When the pigment is dispersed in the substrate, it is in a discontinuous state With the increase of pigments and fillers in the formula, the amount of the base material is reduced The volume concentration of PVC is called critical pigment volume concentration CPVC Continue to increase the amount of powder, reduce the amount of emulsion, that is, PVC is higher than CPVC, at this time, the base material can not wet all the pigments and fillers, and the powder is loose 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 Coatings home: in the paint formulation, when the pigments and fillers are few and the amount of emulsion is large, the base material in the coating can moisten and wrap the pigment adequately Particles, when the pigment dispersed in the substrate, is in a discontinuous state of dispersion With the increase of pigments and fillers in the formula, the amount of the base material is reduced When there is a sufficient amount of binder or emulsion to wet the pigments and fillers in the formula, the volume concentration PVC of the pigments and fillers is called the critical pigment volume concentration CPVC Continue to increase the amount of powder, reduce the amount of emulsion, that is, PVC is higher than CPVC, at this time, the base material can not wet all the pigment and filler particles, powder loose in the coating, so that the quality of the film is poor With the change of PVC in the coating formulation, the mechanical properties of the coating film, such as tensile strength, coating density, adhesion, permeability, foaming, corrosion resistance, and optical properties such as gloss, hiding power, coloring power, etc will change dramatically after the coating construction, and many properties of the coating film will change dramatically at and near the CPVC point 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,
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