Preparation technology of natural rubber

摘要

The invention relates to a natural rubber processing method, which comprises extruding a mixture of natural rubber wet coagulant and peptide into a lead screw machine equipped with a rotating screw and a screw end hole die, (a) The process of compressing the mixture to 130 ° C or more to 210 ° C or less,(b) At the outlet of the die, the adiabatic flashover is carried out when the pressure difference is greater than or equal to 40 bar. In this way, a kind of natural rubber can be prepared, which has a better compromise between heat oxidative aging and viscosity.