Polyvinyl Alcohol

Additional Details

Item Code: GH17R

polyvinyl alcohol (PVA), is a colourless, water-soluble synthetic resin employed principally in the treating of textiles and paper.
The product is highly soluble in water and insoluble in practically all organic solvents. Incomplete removal of the acetate groups yields resins less soluble in water and more soluble in certain organic liquids.

PVA is used in sizing agents that give greater strength to textile yarns and make paper more resistant to oils and greases. It is also employed as a component of adhesives and emulsifiers, as a water-soluble protective film, and as a starting material for the preparation of other resins. By reaction with butyraldehyde (CH3CH2CH2CHO) and formaldehyde (CH2O), PVA can be made into the resins polyvinyl butyral (PVB) and polyvinyl formal (PVF). PVB, a tough, clear, adhesive, and water-resistant plastic film, is widely used in laminated safety glass, primarily for automobiles. PVF is used in wire insulation.
Grades:  we keep ready stock of following grades regularly &

    PVA 173
    GH -17 R
    BP 20
    JP 20
    JP 24
    JP 33
    JP 35
    Celvol 540 &
    Many other grades:

Uses:

    Polyvinyl acetals: Polyvinyl acetals are prepared by reacting aldehydes with polyvinyl alcohol. Polyvinyl butyral (PVB) and polyvinyl formal (PVF) are examples of this family of polymers. They are prepared from polyvinyl alcohol by reaction withbutyraldehyde and formaldehyde, respectively. Preparation of polyvinyl butyral is the largest use for polyvinyl alcohol in the U.S. and Western Europe.

Polyvinyl alcohol is used as an emulsion polymerization aid, as protective colloid, to make polyvinyl acetate dispersions.

Some other uses of polyvinyl alcohol include:

    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. An example is the envelope containing laundry detergent in "liqui-tabs".
    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 form release because materials such as epoxy do not stick to it
    Movie practical effect and children's play putty or slime when combined with borax
    Used in eye drops and hard contact lens solution as a lubricant
    PVA fiber, as reinforcement in concrete
    Raw material to polyvinyl nitrate (PVN). an ester of nitric acid and polyvinyl alcohol.
    As a surfactant for the formation of polymer encapsulated nanobeads
    Used in protective chemical-resistant gloves
    Used as a fixative for specimen collection, especially stool samples
    When doped with iodine, PVA can be used to polarize light
    As an embolization agent in medical procedures
    Carotid phantoms for use as synthetic vessels in Doppler flow testing
    As agent in artificial Tears for treatment of dry eye.