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Azodicarbonamide Production and Uses.

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Update time : 2017-01-18 09:55:53
Production.
Generally azodicarbonamide is prepared in industry by condensation of hydrazine sulfate with urea under high temperature and pressure. This reaction results in hydrazoformamide which is oxidized with sodium hypochlorite and centrifuged to yield a slurry containing end product. The slurry is washed to remove impurities and dried to obtain the azodicarbonamide powder. 




Chemical industry manufactures azodicarbonamide in dispersity range 3-30 micron.

Uses.
As a blowing agent for rubbers and plastics such as PVC, polyolefins, polystyrenes upon moulding, extrusion and rotary formation. Since it releases a small amount of ammonia it is inapplicable for polyesters such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycarbonate and others.