FIELD: process engineering.
SUBSTANCE: invention relates to techniques of producing high-strength thermosetting films. Proposed method comprises mechanical missing of granules of several types of polyethylene and film extrusion with its subsequent pneumatic expansion. Extrusion rate makes over 18 m/min. Mix of granules contains unimodal low-pressure polyethylene and bimodal high-pressure polyethylene.
EFFECT: optimum ratio of components allow optimum physicochemical parametres and increased strength.
2 dwg, 2 tbl
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