Flame resistant glass-epoxy printed wiring boards with no halogen or phosphorus compounds

A highly flame-resistant glass-epoxy laminate-type printed wiring board (PWB) that does not contain such flame-retarding additives as halogen compounds and phosphorus compounds has been developed to overcome environmental problems caused by these flame-retarding additives. The PWB contains a self-ex...

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Veröffentlicht in:Journal of materials science. Materials in electronics 2004-03, Vol.15 (3), p.175-182
Hauptverfasser: IJI, Masatoshi, KIUCHI, Yukihiro
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container_title Journal of materials science. Materials in electronics
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creator IJI, Masatoshi
KIUCHI, Yukihiro
description A highly flame-resistant glass-epoxy laminate-type printed wiring board (PWB) that does not contain such flame-retarding additives as halogen compounds and phosphorus compounds has been developed to overcome environmental problems caused by these flame-retarding additives. The PWB contains a self-extinguishing epoxy resin compound (phenol aralkyl type) and a limited amount of harmless metal hydroxide (aluminum hydroxide). It has high flame-resistance with no inclusion of halogen or phosphorus compounds and shows other good characteristics, including resistance to solder heating and chemical agents in processing, electronic properties, and moldability, which make it a practical FR-4 board. These good characteristics were obtained by utilizing the epoxy resin compound's superior properties, including its pyrolysis resistant, hydrophobicity and non-polar properties, and by minimizing the amount of metal hydroxide. The board is very safe when burned, disposed of, and reused as a filler after pulverizing.
doi_str_mv 10.1023/B:JMSE.0000011358.70618.00
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source Springer Nature - Complete Springer Journals
subjects Applied sciences
Circuit boards
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Epoxy resins
Exact sciences and technology
Glass fiber reinforced plastics
Glass-epoxy composites
Halogens
Metal hydroxides
Phosphorus compounds
Printed circuits
title Flame resistant glass-epoxy printed wiring boards with no halogen or phosphorus compounds
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