FIELD: chemistry.
SUBSTANCE: disclosed is a method of producing an oriented film of amorphous-crystalline polymer, which includes a step of pressing the starting polymer in powder form and a step for drawing it, wherein pressure at the pressing step includes a constant component and a variable component. Constant pressure component per one pressing cycle increases from zero to preset value. Variable component for one pressing cycle more than one time can change value from zero to maximum assigned for it. Direction of action of constant and variable pressure components can be directed at angle from 0° up to 90°. Values of amplitude and frequency of variable pressure component can vary according to preset laws.
EFFECT: technical result is improved strength characteristics of article.
9 cl, 5 dwg, 2 ex
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