炉法炭黑难于在水中分散，炭黑聚集体颗粒进一步聚集，因此其平均粒度远大于接触法炭黑。
The mean granularity of furnace black particle dispersed in water is higher than of connect black because the trend that the particles of furnace black are attached each other is strong .
炭黑聚集体