Polyvinyl Alcohol PVA Fiber Used As Textile Raw Materials
ANHUI LIWEI CHEMICAL CO.,LIMITED
Dissolve Polyvinyl Alcohol in water, through a synthetic fiber by
dry spinning or wet spinning.
Polyvinyl Alcohol Fibers
treated with formaldehyde Polyvinyl Formal Fibers, commonly known as
Vinylon.
PVA quite similar nature and cotton, synthetic cotton said. Strength
and wear resistance than cotton. It is blended with cotton (1: 1)
Fabric 0.5-1 times higher than the cotton fabric durability.
Preferably hygroscopic, moisture regain in the standard state of 4.5
to 5%; specific gravity (1.26 to 1.30) is smaller than cotton, low
thermal conductivity, good thermal resistance; corrosion resistance
and good resistance to sunlight, in general organic acids, alcohols,
esters and petroleum solvents insoluble; difficult to mold decay,
long-term placement in the sea, buried underground or prolonged
exposure is not large loss of strength in the sunlight. The main
disadvantage is the poor heat-PVA water, when there is significant
deformation in the wet state and shrinkage of 110 to 115 ℃, boiled
in water for 3 to 4 hours, significant deformation of the fabric and
partially dissolved; poor flexibility in the process of taking Easy
crease; poor dyeing, color is not bright; low mechanical properties
at elevated temperatures, limiting its application in automobile
tire cord area.
For a lot of PVA Fiber and cotton blended with viscose fiber or
blended with other fibers or pure spin, making coats, cotton
sweaters pants, sports Shandeng jersey. Villeneuve made with canvas
and cables due to high strength, light weight, abrasion resistance,
sunlight, have a broader purpose; PVA also its impact strength and
good corrosion resistance to sea water, suitable for making all
types of fishing nets, as PVA for better stability of the various
chemicals used to making clothes or as a variety of packaging
materials and filter material.
polyvinyl alcohol can be prepared from the polymerization of vinyl
alcohol, vinyl alcohol-free state because not alone, generally based
on the polymerization of Vinyl
Acetate Monomer, polyvinyl acetate and then be generated and prepared solution of
Polyvinyl Alcohol. Villeneuve spun basic
process is: prepare a spinning solution,
spinning and post-processing. Wet spinning process as shown above
Polyvinyl Alcohol PVA Short Fiber production flow chart shown below.