Energy savings plus mechanical reinforcement and rheology control

Waterborne, PVAc / Acrylate for Bonding Aluminum Foil to Chipboard

Adhesives Formulation

Applicable Type

Waterborne Adhesives

Applicable Base Polymer

Polyvinyl Acetate Emulsions & Derivatives (PVAc)

Applicable Industrial Sectors

Buildings & constructions

Applicable Base Polymer Properties

Waterborne vinyl acetate copolymer adhesives for construction applications have relatively good flexibility and low temperature properties (by virtue of added plasticizers) and excellent adhesion to wood and paper. These adhesives provide a low to medium performance relatively inexpensive adhesive that dries quickly. A typical formulation consists of VAE/acrylate latex, filler (if greater viscosity is desired), plasticizer (for improved flexibility), and water.

Typical Formulation Ingredients

Ingredient

Parts by weight

Polyvinyl acetate / acrylate emulsion (Gelva TS-100, Solutia)

xxxx

Plasticizer, diethyl phthalate

xxx

Coalescing agent, methyl isobutyl ketone

xxx

(Source: Adhesives Formulary Handbook, NIIR Board, Asia Pacific Business Press, Inc., 2010, p. 162.)

Typical Properties

Properties

Solids content, %

xxxx

Viscosity, cps

xxxxx

Processing

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Resulting Properties

This adhesive formulation has improved wet tack in which the adhesive joint remains firm immediately after the bond has been established. This adhesive formulation is very flexible even at low temperatures by virtue of its acrylate component. The adhesive also provides high solids content to lower cost and faster drying times. The above adhesive formulation is a good laminating adhesive for bonding kraft paper, cardboard, or other paper substrates. 100% fiber tear is high even after the joint has been immersed in water for 24 hours.

Tips and Tricks

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