1. INTRODUCTION Investigations into the degradation of ... - www-eng
1. INTRODUCTION Investigations into the degradation of ... - www-eng
1. INTRODUCTION Investigations into the degradation of ... - www-eng
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
APPENDIX 2<br />
Chemical structures <strong>of</strong> some commercial products<br />
BF 3 MEA Boron trifluoride monoethylamine: BF 3 –NH 2 –CH 2 –CH 3<br />
CT 200 (CIBA–GEIGY), Araldite B, solid, unmodified epoxy resin based on Bisphenol A:<br />
CH 3<br />
CH2 CH CH2 O O<br />
O CH2 CH CH2 O C<br />
O CH2 CH 3<br />
DDM (CIBA–GEIGY) Hardener – 4,4' – Diaminodiphenylmethane (methylenedianiline MDA):<br />
DDS Hardener – Diaminodiphenyl sulphone:<br />
DEN (DOW) Dow Epoxy Novolac<br />
DGEBA Diglycidyl e<strong>the</strong>r <strong>of</strong> Bisphenol A:<br />
CH CH 2<br />
OH<br />
n<br />
O O<br />
CY 205 (CIBA – GEIGY) Liquid, unmodified epoxy resin based on Bisphenol A ⎫<br />
CY 208 (CIBA – GEIGY) Liquid, modified epoxy resin based on Bisphenol A ⎪<br />
⎪Chemical<br />
formula<br />
⎬<br />
CY 221 (CIBA – GEIGY) Liquid, modified epoxy resin based on Bisphenol A<br />
⎪<br />
see CT200(n =ˆ 0.15)<br />
CY 222 (CIBA – GEIGY) Liquid, modified epoxy resin based on Bisphenol A ⎭⎪<br />
H2 N CH2 NH2 O<br />
H2 N S<br />
NH2 431⎫<br />
⎬Polyglycidyl<br />
e<strong>the</strong>r <strong>of</strong> phenol formaldehyde novolac<br />
438⎭<br />
O<br />
CH 2<br />
O<br />
CH 2<br />
CH 3<br />
CH<br />
O<br />
CH 2<br />
CH 3<br />
CH 3<br />
CH2 CH CH2 O C<br />
O CH2 CH CH2 CH 3<br />
O O
Change language