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CELPURGE is a purging compound for cleaning processing machines, which offers
advanced cleaning performance. The outstanding cleaning performance of CELPURGE
has achieved through an “expansion” power.
Purging compounds generally can be divided into 2 types;
- a semimolten type (containing high-Mw or partially cross-linked polymer),
- a surfactant type (containing
a surfactant).
The semimolten type uses rubbing power enhanced by the high-Mw
/ partially cross-linked polymer to scour away stubborn resins adhering to metal
surfaces. On the other hand, when cleaning the machines with the surfactant
type,
the effective ingredient decreases the adhesion between the metal surface and
the contaminants and suspends them into the flowing plastics.
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Purging compounds: Semimolten-type
Rub resin residues
away from the metal surface. |
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Purging compounds: Surfactant-type Decrease the adhesion
between the resin and the metal, and suspend them. |
The semi-molten type purging
compounds powerfully rub even stubborn deposits away, however,
the most crucial disadvantage of them is that they are extremely
difficult to be purged by the next
materials. The high-Mw / partially cross-linked polymer itself,
which enhances the rubbing power, has high viscosity, consequently
they not only need a lot of material to be purged, but also
tend to be found in subsequently manufactured products as
contamination.
Surfactant-type purging compounds
have the opposite characteristics. Their viscosity is supposed
not to be extremely high, so they generally do not have any
problems with self-purging performance. However, the surfactant
added in order to weaken the adhesion between the metal surface
and the contaminants also decreases the viscosity of the
purging compound itself, and consequently make the
rubbing power very weak. The surfactant-type
purging compound usually is effective against soft contaminants,
however, it often flow over stubborn deposits adhering
to the metal surface.
CELPURGE is different from the
2 types explained above. It is based on the surfactant type,
however, it contains special additives and has expansion
power perpendicular to the flow. Thanks
to this expansion power the matrix polymer press the deposits
and the active components effectively get to the deposit.
The active components not only weaken the adhesion but also
soften the contaminants, which will finally be lift
up and flushed away. Containing no
high-Mw or cross-linked materials,
CELPURGE has an excellent
self-purging performance.
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| CELPURGE :
Thanks to the expansion power, CELPURGE does not flow
over the deposits, effectively lifts up and flushes
out the deposits. |
The table below summarizes
the performances of the 3 types of purging compounds.
- Comparison of the Purging Compounds -
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Cleaning Power |
Self-Purging |
Semimolten-type |
Good |
Moderate |
Surfactant-type |
Moderate |
Good |
CELPURGE |
Excellent |
Good |
For testing CELPURGE at
your site with your equipments, Free-samples are
available. Please send an e-mail right now !
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