Analisa Perbandingan Nilai Accelerated Storage Hardening Test (ASHT) dari Karet Remah Sir 20CV dan Sir 3WF

Abstract

One of the parameters that was analysed in the crumb rubber kind of SIR 20CV and SIR 3WF that is ASHT. as for the standart ASHT him was the maximum 8. This grating was done by using the Plastimeter Wallace implement. The ASHT analysis had a function of getting the value that as minimally as possible so that when arriving in the consumer's country of this crumb rubber like that did not experience the high hardening. In the ASHT analysis that causes the high value usually to be caused was not enough giving of the material of the viscosity stabiliser (WP 25), contamination of the iron and the use of the preservative ammonia with the level of high. In the analysis of the hardening of rubber for the storage (ASHT) used the chemical P2O5 that had a function of absorbing water in the process of heating.