燃烧过程中有发泡膨胀现象，样品离火后迅速炭化自熄，无熔融、滴落现象，发烟量小，是一类较好的膨胀型阻燃剂。
The samples foam and expand during the combustion process, and they carbonize and extinguish right after being deviated from fire, without melting and dropping and with low smoking.
燃烧过程中有发泡膨胀现象，样品离火后迅速炭化自熄，无熔融、滴落现象，发烟量小，是一类较好的膨胀型阻燃剂。
The samples foam and expand during the combustion process, and they carbonize and extinguish right after being deviated from fire, without melting and dropping and with low smoking.
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