Method of preparing high strength and modulus poly(vinyl alcohol

Details Method of preparing high strength and modulus poly(vinyl alcohol Method of preparing high strength and modulus poly(vinyl alcohol

1987-03-23

1988-08-23

Schofer, Joseph L.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264205, 2642108, D10F 614

Patent

active

047659378

ABSTRACT:
High strength and modulus fibers are prepared from a poly(vinyl alcohol) solution in a mixed solvent consisting of water and water-miscible organic solvent. Upon extruding the poly(vinyl alcohol) solution into a coagulation bath, gel fibers are formed as a consequence of favorable gel structure with homogeneous net-works. Drawing the gel fibers to an exceedingly high degree leads to formation of poly(vinyl alcohol) fibers which have a superhigh tensile strength and a superhigh modulus.

REFERENCES:
patent: 4440711 (1984-04-01), Kwon et al.
patent: 4603083 (1986-07-01), Tanaka et al.

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