Thermoplastic Vinyl Alcohol

Because of the instability of vinyl alcohol the thermoplastic polyvinyl alcohol pva or pvoh.

Thermoplastic vinyl alcohol. Vinyl alcohol also called ethenol iupac name is the simplest enol. Thermoplastic poly vinyl alcohol pva water soluble materials basic properties. Poly vinyl alcohol is commercially available in granular and powdered form. Pvoh materials can now act as a more effective replacement for the ethylene vinyl alcohol polymers currently used as oxygen barrier layers for food packaging.

It is commonly supplied as beads or as solutions in water. Ftir spectra of a thermoplastic starch ethylene vinyl alcohol blend sample te and b thermoplastic starch ethylene vinyl alcohol blend containing 2 wt vitamin e sample tev. With the formula c h 2 choh it is a labile compound that converts to acetaldehyde. We report a new kind of thermoplastic elastomer using poly vinyl alcohol pvoh and a high melting ionic liquid il 1 ethylpyridinium bromide.

The polymer is not considered thermoplastic as the degradation temperature is below the melting point. Physical and mechanical properties of plasticized butenediol vinyl alcohol copolymer thermoplastic starch blend. This product is a colorless or pale yellow transparent granular aggregates the moisture proof and topical paper plastic bag lined with plastic bag packaging 25 kg bag sealed packaging at room temperature the product warranty for two years. The resistance of pvoh to non polar organic solvents will also protect foodstuffs from secondary contamination by printing inks etc.

Poly vinyl alcohol pvoh pva or pval is a water soluble synthetic polymer it has the idealized formula ch 2 ch oh n it is used in papermaking textile warp sizing as a thickener and emulsion stabilizer in pvac adhesive formulations and a variety of coatings. Grades include both fully hydrolyzed and partially hydrolyzed products. It is colourless white and odorless. Korea packaging center korea institute of industrial technology bucheon south korea.