Metallic Stearates(Applications): Indispensable Functional Additives in Modern Industry
Metallic Stearates are a class of salt compounds formed by the reaction of stearic acid (a C18 long-chain saturated fatty acid, typically derived from vegetable oils or animal fats) with metallic ions. Owing to their unique physicochemical properties – excellent lubricity, superior stability, efficient dispersibility, and significant anti-caking performance – these compounds have become core functional additives across critical industrial sectors, including plastics, rubber, coatings, personal care, pharmaceuticals, food, and lubricants.
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Functional Properties
Property |
Effect |
Lubricity |
Reduces material/internal friction and friction against processing equipment, enhancing flow. |
Stability |
Improves thermal and long-term stability of materials (especially polymers). |
Dispersibility |
Ensures uniform dispersion of fillers, pigments, and additives. |
Anti-Caking |
Prevents agglomeration of powdered substances, maintaining free flow. |
Release Performance |
Facilitates smooth demolding in molding processes. |
Thickening/Thixotropy |
Modulates viscosity and rheology of fluid systems. |
Key Applications
Plastics Industry
Functions: Internal/external lubricant, heat stabilizer (critical for PVC), acid scavenger, processing aid.
Key Metallic Stearates:
- Calcium Stearate (PVC heat stabilizer)
- Zinc Stearate (lubricant/stabilizer for PE, PP)
- Magnesium Stearate (processing aid)
Rubber Industry
Functions: Internal lubricant, release agent, filler dispersant.
Key Metallic Stearates: Zinc Stearate, Calcium Stearate.
Coatings, Inks & Pigments
Functions: Dispersant, anti-settling agent, thickener (oil-based systems), matting agent.
Key Metallic Stearates: Aluminum Stearate (thickener), Zinc Stearate, Calcium Stearate.
Pharmaceutical Industry
Functions: Tablet/capsule lubricant, release agent.
Key Metallic Stearates: Magnesium Stearate (primary pharmaceutical excipient).
Food Industry
Functions: Anti-caking agent, processing aid.
Key Metallic Stearates: Calcium Stearate (anti-caking agent).
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Though often unseen, Metallic Stearates are vital to modern industrial processes. They enhance product performance, optimize production, and ensure quality consistency. AsiaPalm delivers high-quality, multi-specification Metallic Stearates and tailored technical solutions to drive your success.
Interested in Application Solutions & Technical Specifications?
Contact our sales team for expert support and customized services!