16 сентября, 2015 
Malyar These are commercially the most important class of vinyl and acrylic polymers for coatings, forming the basis of most decorative paints used today.
One of the most common types of emulsion for decorative paint is based on vinyl acetate internally plasticised with about 20 parts of vinyl versatate. Di-butyl or di-octyl maleate or fumarate are also used as plasticising monomers for vinyl acetate, but butyl acrylate or 2-ethylhexyl acrylate are now preferred. Vinyl acetate homopolymers externally plasticised with di-butyl phthalate are still widely used.
Styrene-acrylic copolymers have replaced vinyl versatate copolymers in some areas where improved properties are required such as hydrolysis resistance, but the highest performance coatings are now based on the more expensive full acrylic emulsions.
In recent years, there has been a fast growth in the use of terpolymers based on vinyl acetate — ethylene — vinyl chloride. These terpolymers do not give quite as good performance properties as the acrylics, but ethylene and vinyl chloride are relatively inexpensive monomers.
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