HECONUK

Nucleating

HECO®NUK additives are being used in the closure industry to specifically stabilise the opening forces.

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Nucleating agents

As considerably more nuclei (devel­opment of crystallites) are formed after adding a nucleation concentrate, the spherulites are much finer than those in polymers without additives at the same cooling conditions. The result is that nucleated polymers show a distinct fine-grained, crystalline microstructure leading to a significant increase in transparency, the physical strength and lack of distortion.

Nucleating additives are mostly empirically found and can be used for the respective polymer only, not for several. Especially in PP, transparency and colour- brilliance as well as the physical strength can be considerably increased.

Another positive result is, that by adding a nucleating agent, the addition of colorants and cooling energies can be considerably reduced. Testing results showed that nucleated polymers fulfilled the above mentioned conditions as well as improving the mar-resis­tance of the surface.

These tests confirmed that the specific nucleating of PP, depending on the requirement, can be obtained by using HECO®NUK 484 PP or HECO®NUK 487 PP (containing mould release support and improvement of the mar-resistance of the surface) in order to stabilise the opening forces for the closure industry.

Also in the foam processing industry, nucleation additives are often the foundation and prerequisites of most finely structured foam and optimal cell-size.

425 PE
Nucleating Mixture

Nucleating for all PE technologies and products

484 PP
Nucleating Mixture

Nucleating for caps, with mould release and mar - resistance modifier

485 PP
Nucleating Mixture

Nucleating for caps, with mould release and mar - resistance modifier

487 PP
Nucleating Mixture

Nucleating mixture providing constant opening forces for caps

488 PP
NUCLEATING MIXTURE

specific nucleating additive for the PP-film industry, containing a friction inhibitor

489 PP
Nucleating Mixture

Nucleating mixture providing constant opening forces for caps

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