For example, peptizers are used in the mastication of natural rubber to optimise its processing. This rubber additive ensures quality in the manufacture of Rubber Goods where there is little or no rejection. It requires specialty chemicals to achieve a good dispersion of fillers and perfect plasticity. Natural rubber without treatment is extremely tough. In this case peptizers are used in the mastication of natural rubber to optimize processing.
In contrast to the mechanical mastication of rubber, chemical peptizers shorten the mastication time and lower the energy consumption, with the result that productivity in compounding improves.
For economic reasons mechanical and thermal mastication have lost importance and has been replaced by chemical mastication. The use of peptizers, which is a rubber additive, accelerates the mastication over a broad temperature range. For e.g. when using Dispergum 36 the chemical develops its mastication potential already at 60 degree Centigrade and more importantly does not contain substances which require hazard labelling.
Dispergum 36 provides an easy mastication of natural rubber or synthetic diene rubbers on an open mill as well as in an internal mixer. The combination of metal-complex-catalysts and dispersion additives enables the adjustment of the required Mooney viscosity, and helps to save energy and to protect the environment. The tested compounds showed no negative effects on ageing and physical properties. Dispergum 36 also needs no hazard labelling. Further Dispergum 36 does not affect ageing and physical properties. As a rubber additive it is one of the most environmental friendly product and is REACH compliant.