What is Composite Products?
The term “composite products” includes two categories: water soluble systems and emulsion/dispersion systems. Distinctive characteristics of the polymer classify each category.
Water-soluble systems use amines to neutralize acid-functional resins into a variety of water-soluble alkyds, acrylics, polyesters, and their hybrids. The amines neutralize the carboxyl groups. System parameters are molecular weight, acid value, co-solvent level, and amine efficiency for balanced performance properties.
Emulsions have a general particle size of 0.1 micron while dispersions have a general particle size of about 1.0 micron. Dispersions are often called suspensions. Suspension polymers are aqueous systems where the polymer solid is a dispersed solid phase.
Dispersions have the initiator dissolved in the monomer phase while emulsions have the initiator located in the aqueous phases. Both, emulsion and dispersion polymerization, lead to different kinetics. Aqueous solutions of polymers are characterized by particles of infinitesimal size being, too small to be measured.