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GC/MS identification of pyrolysis products from fire-retardant brominated epoxy resin
被引:24
作者:
Balabanovich, AL
Luda, MP
Operti, L
机构:
[1] Univ Turin, Dipartimento Chim IFM, I-10125 Turin, Italy
[2] Univ Cso Massimo dAzeglio, Dipartimento Chim Gen & Organ Applicata, I-10125 Turin, Italy
[3] Belarusian State Univ, Phys Chem Problems Res Inst, Minsk 220050, BELARUS
关键词:
pyrolysis;
electronic scrap;
fire-retardant;
halogen;
GC/MS;
epoxy resins;
tetrabromobisphenol A;
brominated phenols;
alkenyl aryl ethers;
hydroxyalkyl aryl ethers;
D O I:
10.1177/0734904105047006
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Brominated epoxy resins cured with diaminodiphenyl sulfone are thermally less stable than nonbrominated analogs. This thermal instability is likely to be caused by the formation of hydrogen bromide which destabilizes the epoxy network. As a result of the reaction of HBr with the epoxy resin, bromine-containing aromatics (brominated phenols, alkenyl aryl ether, hydroxyalkyl aryl ethers), as well as nonbromine-containing compounds form high-boiling decomposition products. The mass spectra of the brominated products collected from pyrolysis at 300 degrees C in the open system under helium are presented and discussed.
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页码:227 / 245
页数:19
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