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Ultimate properties of epoxy resins modified with a polysiloxane–polycaprolactone block copolymer
Author(s) -
Könczöl L.,
Döll W.,
Buchholz U.,
Mülhaupt R.
Publication year - 1994
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1994.070540612
Subject(s) - polycaprolactone , epoxy , copolymer , materials science , silicone rubber , composite material , silicone , toughness , fracture toughness , polymer
Mechanical and fracture mechanics properties of transparent multiphase epoxy resins toughened with various amounts of compatibilized silicone liquid rubbers consisting of polycaprolactone‐ block ‐poly(dimethylsiloxane)‐ block ‐polycaprolactone triblock copolymer have been investigated. At silicone liquid rubber contents < 10 wt % significantly improved toughness has been achieved without adversely affecting thermal and mechanical properties. Fractographic and interferometric methods have been applied to study crack propagation in such silicone‐modified resins. © 1994 John Wiley & Sons, Inc.