Coating classification: design idea of coating formula

Core tips: the film performance of compact, smooth and hydrophobic is generally better After the coating construction, the volatile matter in the wet film volatilizes, the binder forms a film, adheres the powdery substances such as pigments and fillers to the base material, and forms a film with certain decorative and protective effects The formula coating with different pigment volume concentration (PVC) and different nonvolatile volume content (nvv%) has a film hardness Mechanical properties such as tensile strength, film density, adhesion, permeability / impermeability, foaming, slow release, optical properties such as gloss change, hiding power (contrast ratio), coloring power, dry and wet friction and pollution resistance Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Paint Home News: the film performance of dense, smooth and hydrophobic is generally better After coating construction, the volatile matter in the wet film volatilizes, and the binder forms a film The powder materials such as pigments and fillers are adhered to the substrate to form a film with certain decorative and protective effects Different pigments For the formulation coating with volume concentration (PVC) and different nonvolatile volume content (nvv%), the coating is applied in the hardness, tensile strength, coating density, adhesion and other machinery Performance, permeability / impermeability, foaming, slow release and other permeability, gloss change, hiding power (contrast ratio), coloring power and other optical properties, as well as dry and wet friction resistance, pollution resistance and other aspects of performance vary greatly The formulation of interior and exterior latex paint for ordinary buildings is designed to make full use of the properties of raw materials, and strive to minimize the difference between the formula PVC and the hidden CPVC in the system At this time, the formula is quantitative, which represents the best proportion of the emulsion, pigment and filler in the selected emulsion and pigments and fillers The PVC of the coating determines the price of the coating The absolute value of the pvc-cpvc difference implied in the coating formula has a great influence on the mechanical properties, optical properties, permeability and other properties of the coating In general, the formula design of the interior and exterior wall architectural coating should minimize the absolute value of the pvc-cpvc difference, and the design formula should be controlled within ± 5 with good performance The closed primer PVC / CPVC = 0.75-0.90, and the antirust paint PVC / CPVC = 0.80 Therefore, the formulation design of the coating requires the control of ∣ pvc-cpvc ∣ and nvv% to ensure the best performance of the formulation 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,