Adhesive Solutions from Which the Solvents Evaporate during Bonding

Adhesive Solutions from Which the Solvents Evaporate during Bonding 

Solutions of Polymeric Substances and Resins in Organic Solvents. A distinction is be drawn between adhesives that set by evaporation of the solvent and form an adhesive joint by adhesion of the dissolved polymer to the substrate surfaces, and adhesives for plastics, the solvent of which dissolves and swells the plastics surfaces and joins them by means of migration processes. This allows bonding of plastics that are otherwise difficult to join. The polymer solutes in solution adhesives act primarily as thickeners for establishing certain flow properties and retaining the solvent for the duration of the dissolution process. These solid components also may perform a limited gap-filling function. 

Adhesion Adhesives. The best known solvent-containing adhesives are the multipurpose adhesives. They can not join every type of substrate, but can bond a wide range of substrates with different results. They contain as binders high molecular mass compounds that adhere to many different surfaces, preferably nitrocellulose and polyfvinyl acetate). The solvent mixtures consist of esters and ketones and, in some cases, also 

Solutions of natural and synthetic rubber, polyurethane rubber, ethylene-vinyl acetate copolymers, polyacrylates, and other polymers with additions of resins and plasticizers are also used. These polymers can be used in solvents or as dispersions in water. 

Trade Names. In Germany. UHU Alleskleber, Pritt Alleskleber in Japan Saivinol, Cevien-A in the USA Elmer s School Glue, Wilhold Glu-Bond. 

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