Analysis Of The Use Skills Of Polymers For Special Coatings

With the rapid development of industrial technology, special coatings are increasingly used in aerospace, automobile manufacturing, ship corrosion protection and other fields. As the core component of special coatings, the performance of polymers directly affects the weather resistance, adhesion and corrosion resistance of the coating. Mastering the correct use skills can not only improve the performance of the coating, but also optimize the production cost. This article will analyze the use skills of polymers for special coatings to provide practical reference for industry practitioners.

First, the choice of polymers needs to be determined according to the specific application scenario. For example, polyurethane polymers are often used in heavy anti-corrosion coatings due to their excellent wear resistance and chemical resistance; while fluorocarbon polymers are the first choice for high-end building exterior wall coatings due to their super weather resistance. When choosing, the durability, environmental adaptability and cost-effectiveness of the coating should be comprehensively considered to avoid substandard performance or waste of resources due to improper selection.

Secondly, the dissolution and dispersion process of the polymer is crucial. Different polymers have different adaptability to solvents. For example, epoxy resins usually require ketone or ester solvents, while acrylic polymers are more soluble in aromatic hydrocarbon solvents. In actual operation, it is recommended to determine the best solvent ratio through small tests, and use high-speed dispersion or sanding process to ensure uniform dispersion of polymers to avoid defects such as particles or shrinkage holes in the coating.

In addition, the control of the construction environment cannot be ignored. Temperature and humidity can significantly affect the curing speed of polymers and coating performance. For example, polyurethane coatings cure slowly in low temperature environments, which may lead to reduced leveling; while water-based polymer coatings are prone to bubble problems in high humidity environments. Therefore, environmental parameters must be strictly monitored before construction, and drying time and temperature must be adjusted according to polymer characteristics.

Finally, storage conditions directly affect the service life of polymers. Most polymers need to be kept away from light and sealed, and are sensitive to temperature. For example, some water-based polymers may demulsify at low temperatures, while some thermosetting resins need to avoid long-term high-temperature storage. Standardized warehouse management can effectively reduce waste and ensure stable coating performance.

Mastering the use skills of polymers for special coatings is the key to improving coating quality and production efficiency. With increasingly stringent environmental regulations, low-VOC, high-functional polymers will become the mainstream of the industry in the future, and related technologies will continue to upgrade.