Description
🧪 Introduction to PMA – A Specialized Solution for the Resin and Polyurethane Industry
🔍 What is PMA?
PMA, produced by Karun Petrochemical Company, is a mixture of aromatic amines, including 4,4′-diaminodiphenylmethane (MDA), 2,4′-MDA, 2,2′-MDA, and other related compounds. Under ambient conditions, it appears yellow to brown, is soluble in most organic solvents and hydrochloric acid, but is insoluble in water, gasoline, and hexane.
🛠 Key Applications of PMA
Due to its unique chemical structure, PMA is used across various industries, especially in the following areas:
Epoxy Resin Industry: As a curing agent, it provides high strength and dense cross-linking.
MDI Production: Used as a raw material in the synthesis of methylene diphenyl diisocyanate.
Large-Part Molding: With adjustable curing time, it is ideal for encapsulating and molding massive components.
📊 Technical and Quality Specifications – PMA
Property | Unit | Specification Value | Test Method |
---|---|---|---|
Appearance | — | Solid, yellow to brown | Visual Inspection |
Purity | WT% | Minimum 99.7 | 2-2.9.3-I033 |
Total MDA Content | WT% | Between 65 and 85 | 2-2.9.3-I033 |
Aniline | WT% | Maximum 0.1 | 2-2.9.3-I033 |
Moisture | WT% | Maximum 0.1 | 2-2.9.3-I035 |
🏭 Storage and Transportation Conditions
To ensure product stability and quality:
Store in a dry, clean, and well-ventilated area.
Avoid direct sunlight and heat sources.
During transport, protect from leakage, rain, and intense light.
✅ Recommended Storage Temperature: Between 20°C and 40°C
⏳ Shelf Life: 6 months (extendable up to 12 months under proper conditions)
📦 Packaging
PMA is packed in new steel drums of 220 liters (net 200 kg). Every four drums are secured on a wooden pallet with strapping.
Conclusion
With high purity, excellent industrial performance, and broad application potential, PMA is an outstanding choice for use in the production of resins, polyurethanes, and polymer compounds. Choosing this product means investing in quality and reliability for your manufacturing processes.
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