Halogen-free Laminates - Flame Retardants-Online

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Review of halogen-free resin chemistries • The epoxy chemistry remains the preferred backbone in CCL applications. Halogen-free systems are usually based on: - nitrogen modified epoxies - phosphorus modified epoxies: to date, mainly based on DOPO In most cases, modifications are limited to a certain extent, as e.g. brittleness and water absorption are affected by the modifications. Modified resins with acceptable properties are usually rating UL 94 V-1 and thus need additional additives (e.g. ATH, Metal phosphinate) to achieve V-0 rating. Halogen-free Laminates: The technology is there for an emerging market Public Marketing Thermosets BU Specialties Div. P&A 09.06.2006 Slide 16
Review of halogen-free resin chemistries • To achieve different properties or to overcome certain drawbacks, alternative thermosetting polymers can be used, on their own or blended. • Some of them are already commercially used for years - Cyanate esters (CE) - Bismaleimide Triazine (BT) - Thermoset Polyphenylenether (A-PPE) - Polyphenylenether (PPE) or Polyphenylenoxide (PPO) blended with epoxies e.g. Getek® Halogen-free Laminates: The technology is there for an emerging market Public Marketing Thermosets BU Specialties Div. P&A 09.06.2006 Slide 17
Page 1 and 2: Halogen-free Laminates: The technol
Page 3 and 4: Regional importance of commercial h
Page 5 and 6: Recent activities about “halogen
Page 7 and 8: What are “halogen-free” materia
Page 9 and 10: Technical requirements to FR system
Page 11 and 12: Review of halogen-free Flame Retard
Page 13 and 14: Review of halogen-free Flame Retard
Page 15: Review of halogen-free Flame Retard
Page 19 and 20: Halogen-Free CCL • Commercially a
Page 21 and 22: Concerns about halogen-free materia
Page 23 and 24: Summary • A wide range of materia
Page 25: Public Marketing Thermosets BU Spec

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