FIELD: manufacture of high-strength fibers and films.
SUBSTANCE: proposed method of production of synthetic organic aromatic heterocyclic rod-shaped fibers or films includes the following stages: molding the fiber or film; loading the fiber or film in presence of technological additive at temperature below boiling point of this additive but higher than minus 50 C at tension equal to 10-95% of fiber or film rupture strength; removal of technological additive and/or heating at tension which is equal to 10-95% of fiber or film rupture strength. Proposed method also includes production of PIPD fiber at line density of monofilament within 0.1-500 dtex and average tensile strength exceeding 3200 mN/tex, as well as production of film whose modulus of elasticity is no less than 14 Gpa, 20 Gpa being preferable.
EFFECT: enhanced tensile strength and increased modulus of elasticity.
11 cl, 2 tbl
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| METHOD FOR MANUFACTURE OF THERMALLY STABLE COILED THREAD | 2001 |
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RU2264485C2 |
| MONOFILAMENT OF THERMOTROPIC AROMATIC POLYESTER(AMIDE) | 1998 |
|
RU2202012C2 |
| HYBRID REINFORCING MEMBER | 2014 |
|
RU2632040C1 |
