Energy savings plus mechanical reinforcement and rheology control

Low Cost Polyvinyl Alcohol (PVOH) Adhesive

Adhesives Formulation

Applicable Type

Waterborne Adhesives

Applicable Base Polymer

Polyvinyl Alcohols (PVOH)

Applicable Industrial Sectors

Buildings & constructions , Industrial Assembly , Papers & Packagings

Applicable Base Polymer Properties

Polyvinyl alcohol resins are water soluble. Non-toxic and biodegradable, polyvinyl alcohol (PVOH) adhesives are an excellent choice in food or general paper packaging as well as paperboard manufacturing. Developed to laminate or bind various paper and paperboard products, PVOH adhesives wet out fast to grab and bond quickly.

Often used in the manufacturing of composite cans, tube winding, corrugated board and corner guards for boxes, polyvinyl alcohol has exceptional film forming, emulsifying and bonding properties. More economical and easier to use than dextrin and other synthetics found in some paperboard manufacturing, PVOHs are sometimes filled with clay to create a firm core in cans, tubes, and cardboard with impressive crush strength.

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

Polyvinyl alcohol (tackified)

xxx

Filler (ASP-200 aluminum silicate)

xxx

Water

xxxx

Typical Properties

Properties

Viscosity (#3 at 60 RPM, 25°C), cps

xxxx

xxx

Weight per Gallon, lbs

xxx

Processing

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Resulting Properties

The viscosity of this adhesive and its fast setting capability provide an excellent adhesive for solid fiber substrates. Waterborne PVOH adhesives have good flexibility and low temperature properties. PVOH adhesives are notable for their low degree of permeability. Polyvinyl alcohol is very resistant to oil, grease and solvents while maintaining high tensile strength and flexibility. These adhesives provide a low to medium performance relatively inexpensive adhesive that dries quickly.

In food packaging, polyvinyl alcohol adhesives are FDA approved as an adhesive for indirect food contact. PVOHs are tasteless, odorless and can be used on their own or blended with polyvinyl acetate emulsions for a faster set.