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Adhesives Ingredients

High Solids Adhesives and Their Fillers

SpecialChem / Andy Extance – Feb 10, 2010

Increasing concern about volatile organic compound emissions, embodied in building standards like LEED and Greenguard, are encouraging the uptake of high-solids adhesives. Use of surfactants and other stabilizers allow fillers to supplement the high polymer content produced by emulsion polymerizations. Nanoparticle fillers offer exceptional mechanical properties, and can produce increasingly high solids adhesives. The solids content of an adhesive formulation includes the proportion of base polymer, inorganic filler and non-volatile additives. Non-solids parts are made up of solvent or water, and must generally be eliminated before the adhesive cures. This requires energy, and the solvent can often pose a threat to health, which is why minimizing these parts of the formulation is desirable.

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