Poly vinyl alcohol

Polyvinyl alcohol has excellent film forming, emulsifying, and adhesive properties. It is also resistant to oil, grease and solvent. It is odorless and nontoxic. It has high tensile strength and flexibility, as well as high oxygen and aroma barrier properties.

However these properties are dependent on humidity, in other words, with higher humidity more water is absorbed.

PVA is an atactic material but exhibits crystallinity as the hydroxyl groups are small enough to fit into the lattice without disrupting it. &nbsp Other names PVOH; Poly(Ethenol), Ethenol, homopolymer; PVA; Polyviol; Vinol; Alvyl; Alkotex; Covol; Gelvatol; Lemol; Mowiol &nbsp Identifiers CAS number98002-49-4 HS Code3905300000 &nbsp Properties Molecular formula

(24)x

Odor

odorless

Density

1.19-1.31 g/cm³

Melting point

230 °C

Boiling point

228°C

&nbsp Packaging & Delivery Packaging Detail: 25Metric /20'FCL Net weight 25kg/bag Delivery Detail : With 15 days after receipt the payment &nbsp Uses: ·Paper adhesive with boric acid in spiral tube winding and solid board production ·Thickener, modifier, in polyvinyl acetate glues ·Textile sizing agent ·paper coatings, release liner ·As a water-soluble film useful for packaging. ·Feminine hygiene and adult incontinence products as a biodegradable plastic backing sheet. ·Carbon dioxide barrier in polyethylene terephthalate (PET) bottles ·As a film used in the water transfer printing process ·As a mold release because materials such as epoxy do not stick to it ·Used in eye drops and hard contact lens solution as a lubricant ·PVA fiber, as reinforcement in concrete ·Used in protective chemical-resistant gloves ·Used as a fixative for specimen collection, especially stool samples ·As an embolization agent in medical procedures ·As agent in artificial Tears for treatment of dry eye.