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 originating from sustainably managed seaweed farms. Scogin® LDH is valued as a binder for several industrial applications, including adhesives, inks, and coatings that require highly-functional biocontent in their formulations. In these applications, Scogin® LDH may function as an additive to provide gelling, stability, and thickening. When added to water at 1 wt%, Scogin® LDH forms solutions with a viscosity of 50–70 mPa·s. An alginate-based gel will also form if calcium is introduced to this solution.
Scogin® LDH also has uses in several other industrial applications, including encapsulation, paper and board manufacturing, and water treatment.
In wastewater treatment applications, Scogin® LDH is useful as a flocculant, where flocs and sediments can be disposed of in a more cost-efficient manner since it can then be treated as organic waste.
Scogin® LDH also has excellent film-forming properties making it is useful as a binder in paper and board manufacturing. Scogin® LDH 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, likeScogin® LDH, can also entrap or encapsulate liquids, oils, and particles, making them effective encapsulating agents for active ingredients used in agriculture and other industrial processes.
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
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