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Inside Oceanex

Inside Oceanex

OCEANEX achieves high polymer replacement levels in plastics by harnessing the power of the compounds naturally found in powdered Oyster shell. The shell is denatured, blended with some additional organic material to create super-fine OCEANEX powder.

There is no actual Oyster in OCEANEX so plastics that contain it will not present a problem for people with seafood allergies.

For some plastic manufacturing processes OCEANEX powder can be introduced directly and we can supply it in that form. More commonly OCEANEX is supplied as a compounded masterbatch pellet. Our stock pellet carrier is HDPE which is compatible with most types of plastics. The carrier material is less than 10% of the pellet mass.

To create a fully bio-renewable masterbatch we offer the option to use Green PE (Braskem) as the carrier material, plus we can supply a version of OCEANEX compounded with PBAT that can be used with compostable bio-plastic films.

Inside oyster shell

Calcite

Calcium Carbonate is a chemical compound with the formula CaCo3. Calcite is a naturally occuring polymorph of CaCo3 and it is the primary mineral found in limestone, marble and oyster shell. Powdered Calcite is widely used as a filler in the production of plastics but it comes from mining and quarrying. The advantage of using Calcite from Oyster shell is that it is bio-renewable.

Aragonite

Aragonite is the crystalline form of calcium carbonate. Aragonite has anĀ orthorhombic crystal structure which helps it to integrate well with synthetic polymers. This helps blends of plastic + OCEANEX establish a stable material structure compared to using conventional fillers. Aragonite sourced from Oyster shell is of course also a bio-renewable material.

Chitin

In the nacreous layer of Oyster shells, the bio-polymer Chitin serves as the major component of the organic framework. Bio-polymers can be blended with synthetic polymers to increase the renewable content of plastics and to provide dimensional stability.

Oceanex

Exoplastics Limited
Unit 364
Walton Summit Trading Estate,
Preston. PR5 8AS.

Telephone 01772 334936

Company Reg. No. 08383426

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