Blowing Agents
There are two main types of blowing agents: gases at the temperature that the foam is formed, and gasses generated by chemical reaction. Carbon dioxide, pentane, and chlorofluorocarbons are examples of the former. Blowing agents that produce gas via chemical reactions include baking powder, azodicarbonamide, titanium hydride, and isocyanates (when they react with water).
Read more about this topic: Foaming Agent
Famous quotes containing the words blowing and/or agents:
“The yellow pool has overflowed high up on Clooth-na-Bare,
For the wet winds are blowing out of the clinging air;
Like heavy flooded waters our bodies and our blood;
But purer than a tall candle before the Holy Rood
Is Cathleen, the daughter of Houlihan.”
—William Butler Yeats (1865–1939)
“Luckless is the country in which the symbols of procreation are the objects of shame, while the agents of destruction are honored! And yet you call that member your pudendum, or shameful part, as if there were anything more glorious than creating life, or anything more atrocious than taking it away.”
—Savinien Cyrano De Bergerac (1619–1655)