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Scogin® IN2420 is a sodium alginate–based polymer naturally derived from seaweed. It is commonly used to thicken and gel water-based solutions used in industrial applications.
Scogin® IN2420 is a naturally derived alginate polymer that is sourced from sustainably managed brown seaweed farms. It is typically used as a binder, thickener, gelling agent, and stabilizer in water-based coating, ink, and adhesive formulations. As such, it is a sustainable alternative to fossil fuel–based additives and binders traditionally used in these applications. When Scogin® IN2420 is added to water at 1 wt%, it creates a solution with a viscosity of 15–25 mPa·s. A medium-strength gel can also be formed by adding calcium to this solution.
Scogin® IN2420 may also be used in other applications, spanning paper and board manufacturing, bioplastics, water treatment, and active-ingredient encapsulation. Scogin® IN2420 has excellent film-forming properties, making it ideal for paper and board sizing and manufacturing paper coatings. This film-forming property also makes Scogin® IN2420 useful in bioplastics research and fabrication. When used for water treatment, Scogin® IN2420 functions as an effective flocculant, especially when used as a co-flocculant with metal-based flocculants. The long, linear molecular structure of the Scogin® IN2420 alginate also allows it to effectively entrap and encapsulate active ingredients in agricultural and industrial formulations.
Loss on Drying (% max): 15
pH: 6.5–8.5
Viscosity (1%, 25°C, mPa·s): 15–25
Particle size (18 mesh BS, % min): 97
Particle size (25 mesh BS, % min): 90
Naturally derived, biodegradable sodium alginate polymer
High solubility in both cold and hot water
Provides rheology modification and gel formation properties
Stabilizes emulsions, dispersions, and suspensions
Gelation is triggered by the addition of calcium; no heat is required
Excellent film formation
Improves flocculation performance
Encapsulates active ingredients
Low viscosity and instability within coatings, inks, and adhesive formulations
Difficulty in forming gels due to heating requirements
Use of additives and binders derived from nonrenewable resources
Rheology modification and stabilization for coatings, inks, and adhesives
Encapsulation of agricultural and industrial active ingredients
Bioplastics development
Flocculation of wastewater
Paper sizing and coating
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