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Scogin® LDH
Scogin® LDH is a low–molecular weight sodium alginate polymer derived from brown seaweed. It is used as a thickener and gelling agent in industrial applications.
Scogin® LDH is a biodegradable alginate polymer derived from sustainably managed seaweed farms. Scogin® LDH is valued as a naturally sourced binder for several industrial applications, including coatings, inks, and adhesives. In these applications, Scogin® LDH may also function as an additive to provide thickening, gelling, and stability. When added to water at 1 wt%, Scogin® LDH forms solutions with a viscosity of 50–70 mPa·s. If calcium is introduced to this solution, an alginate-based gel will form.
Scogin® LDH has utility in several other industrial applications, including paper and board manufacturing, encapsulation, and water treatment. In wastewater treatment applications, Scogin® LDH is useful as a flocculant, where flocs and sediments created with Scogin® LDH can be treated as organic waste and are less expensive to dispose of. Scogin® LDH has excellent film-forming properties. Therefore, it is also useful in paper and board manufacturing, where it can be used for paper sizing applications or to form specialty coatings with a low propensity for ignition. It may also be used as a raw material in bioplastic fabrication. Scogin® alginates, like Scogin® LDH, can also entrap or encapsulate particles, oils, and liquids, making them effective encapsulating agents for active ingredients used in agriculture and other industrial processes.
Specifications
Loss on drying (%): 10–15 pH (1% in water): 6.5–8.5 Viscosity (1% in water, mPa·s): 50–70 Particle size (25 mesh, % min): 99 Particle size (36 mesh, % min): 96 As (max): 3 mg Pb (max): 5 mg Hg (max): 1 mg Cd (max): 1 mg Total heavy metals (max): 20 mg
Primary Chemistry: Sodium alginate
Features & Benefits
Naturally sourced and biodegradable sodium alginate polymer Provides stability for emulsions, dispersions, and suspensions Good solubility in both cold and hot water Rheology modification and gel formation properties Gelation triggered only by addition of calcium; no heat is required Excellent film-forming properties Improves flocculation performance when used with metal-based flocculants Encapsulates active ingredients
Problems Solved
Insufficient viscosity for coating, ink, and adhesive formulations Instability within industrial emulsions, dispersions, and suspensions Difficulty forming gels due to heating requirements Reliance on fossil fuel–based additives and binders
Applications
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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ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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