Coating method in plastic tarpaulin processing

In the process of making plastic tarpaulin, in order to improve its performance, some additives need to be used, and the coating method is a processing method of additives. This process requires cleaning first, mainly to obtain a uniform and dense antistatic coating. Before applying the antistatic agent, the surface of the material must be cleaned to remove dust and grease from the surface of the plastic tarpaulin. After cleaning, it needs to be dried in a clean room. Mix the antistatic agent with 0.2-2% solution with ethanol, ester or water. The concentration of the solution should be as dilute as possible under the premise of ensuring the antistatic effect, because the solution with high concentration will become viscous and easy to Absorbs dust. For coating, the coating method is selected according to the shape of the plastic tarpaulin. The commonly used coating methods are direct method, dipping method and spraying method. The direct method is to apply the antistatic agent solution on the product with cotton cloth, flannel, brush, roller. After drying and coating, the plastic tarpaulin should be dry enough to harden the coating. Under the conditions of temperature 30-40 ℃ and humidity 60-80%, it takes about 3 hours to dry. Pay attention to the natural environment for 5 hours after drying.

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