The coating process of rubber products Surface painting treatment

In addition, the thermal deformation temperature of most rubber products is low, it is not appropriate to use heating and curing to complete the cross-curing of the coating, which in turn put forward higher requirements for the choice of coating and coating process. It can be seen that rubber coatings must adapt to a variety of substrates and match their surface characteristics, mechanical properties, thermal expansion properties and thermal deformation characteristics, while giving them the corresponding protection, decoration and functional requirements, belonging to a large category of coatings with special requirements. Rubber products a wide variety of different shapes, batch sizes vary greatly. The coating method and the surface treatment process are very different, and the coating process has made rapid progress in recent years.
In the coating process of rubber products occupy a special position in the surface treatment, rubber surface can be relatively low, but also easy to estate dust, but also with molding processing aids and migration to the surface of various additives, such as release agents. It is also considered that the treatment to reduce surface crystallization is therefore more likely and more complex to produce defects in the coating of rubber products. Special chemical and chemical properties such as smooth rubber surface make it necessary to pre-treat the surface before coating protection of butyl rubber products.
butyl rubber surface treatment method is usually chemical treatment method, the method is not affected by the complexity of the surface appearance of the material, can evenly handle the product exposed to any part of the outside, usually toluene, butylone, acetone, cyclosterone, dichloromethane and methanol, according to the surface properties of the material and the speed of solvent volatility of the above solvents in a certain proportion into a mixed solvent. Organic solvents can remove aging products and dust from the surface of the material, as well as a variety of organic additives and monolithic, low molecular products migrated from the material body, and produce erosion and swelling, increase the surface roughness of the material, improve the adhesion properties of the butyl rubber material itself.
Using pre-treatment methods for pre-painting methods for the chemical treatment of solvent cleaning, cleaning agent selection before cleaning, the selection of materials for the common cleaning agent acetone, butyl ketone and butyl rubber erosion has a lower impact on fatty hydrocarbon solvents, by comparing acetone, butylone, fatty hydrocarbon solvents on butyl rubber catheter quality change rate, volume change rate test, so as to screen out suitable for rubber pipe cleaning agent. Source: (Yuzhou Tongfu
Products Factory)
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