Azodicarbonamide (AC), scientifically known as diazinedicarboxamide (CAS 123-77-3), is a workhorse chemical blowing agent in industries ranging from plastics and rubber to textiles. Understanding its decomposition mechanism is key for manufacturers to effectively utilize its capabilities. As a leading manufacturer and supplier of AC, we aim to provide clarity on this essential chemical process.

The Decomposition Mechanism of Azodicarbonamide

At its core, Azodicarbonamide is an organic compound containing an azo group (-N=N-) flanked by two carbamoyl groups (-CONH2). When heated to its decomposition temperature, typically between 170°C and 205°C depending on its formulation and any activators present, the molecule undergoes thermal cleavage. The primary products of this decomposition are:

  • Nitrogen Gas (N2): This is the main gas produced, and it's inert, making it ideal for creating stable foam cells without reactivity issues within the polymer matrix.
  • Carbon Monoxide (CO): A significant component of the gas mixture, contributing to the expansion.
  • Carbon Dioxide (CO2): Also contributes to the gas volume.
  • Ammonia (NH3): Released in smaller quantities.

The overall reaction can be simplified, but the key takeaway is the efficient generation of gas volume, typically exceeding 200 ml/g (STP), which is crucial for effective foaming. The decomposition itself is an endothermic or exothermic process depending on the specific conditions and any additives, but the net effect is gas generation.

Factors Influencing Decomposition

Several factors can influence the decomposition temperature and rate of Azodicarbonamide:

  • Particle Size: Finer particles have a larger surface area, leading to faster decomposition.
  • Activators/Inhibitors: Certain additives can accelerate (activators) or retard (inhibitors) the decomposition process, allowing manufacturers to fine-tune the foaming behavior to match their specific processing temperatures and polymer types.
  • Polymer Matrix: The presence of fillers, stabilizers, or other additives in the polymer formulation can sometimes affect the AC's decomposition kinetics.

Reliable AC Supply from a Leading Manufacturer

As a trusted Azodicarbonamide manufacturer, we understand the importance of consistent product quality and predictable decomposition behavior. We offer various grades of AC, some of which are modified to offer controlled decomposition temperatures and enhanced dispersibility in polymers like PVC, EVA, PE, and various rubbers. When you buy Azodicarbonamide from us, you are assured of a product that has undergone rigorous quality control to ensure optimal performance in your foaming applications. Our competitive Azodicarbonamide price and reliable supply chain make us an ideal partner for businesses worldwide.

For detailed technical data on our Azodicarbonamide products, including specific decomposition profiles, or to inquire about bulk purchasing and pricing, please contact our expert team. We are dedicated to supporting your manufacturing success.