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High‐density polyethylene pipe resins
Author(s) -
Bohm Ludwig L.,
Enderle Hans F.,
Fleifßner Manfred
Publication year - 1992
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19920040317
Subject(s) - materials science , polyethylene , environmental stress cracking , cracking , stiffness , polymer , composite material , polymerization , elastic modulus , modulus , alloy , stress (linguistics) , service life , low density polyethylene , high density polyethylene , stress corrosion cracking , linguistics , philosophy
Efficient catalyst systems and an appropriate polymerization technology are required for the production of pipe resins which must exhibit both high stiffness and excellent service lifetimes (i.e. resistance to environmental stress cracking). The problem is that these requirements are contradictory but recently a polymer alloy has been developed with an elastic modulus over 1000 MPa and a failure time two orders of magnitude higher than that of standard materials.