Consolidation of polyethylene fibrous networks

Details Consolidation of polyethylene fibrous networks Consolidation of polyethylene fibrous networks

D - Textiles, Paper

04

H

18/1013

D04H 1/00 (2006.01) B29C 43/00 (2006.01) B29C 67/24 (2006.01) D04H 1/54 (2006.01)

Patent

CA 1218209

ABSTRACT CONSOLIDATION OF POLYETHYLENE FIBROUS NETWORKS High performance (high tenacity and modulus) polyethylene fibers are subjected to pressure at elevated temperatures in the absence of a matrix to form articles such as non-woven fabrics and film-like struc- tures, which may be translucent or even transparent. Good fiber adhesion and even fiber deformation to produce a substantially void-free article are achieved, even when molding temperatures are below the approxi- mately 138°C melting temperature of the precursor UHMW polyethylene. Fiber physical properties, and especially high tenacities, are retained even when temperatures exceed 138°C, such as at 140°C, 150°C or 155°C molding temperature.

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