Aplikasi asetaldehida melalui teknik perendaman terhadap karakteristik mutu teknis karet alam

Abstract

The raw material for the production of SIR 20 rubber comes from smallholders plantations thus tire factory has begun to substitute with a more efficient constant viscosity rubber. Production of constant viscosity rubber requires additives such as acetaldehyde. This study aimed to explore technical quality characteristics of natural rubber produced using rubber processing materials with various types of coagulant and soaking time in the acetaldehyde stabilizer using a factorial complete random design. The results showed that various types of coagulant and immersion time in acetaldehyde solution significantly affected the quality parameters of P 0 , PRI, Mooney viscosity and ash content, but did not affect the SVI and volatile matter content. The quality of natural rubber produced from various treatments was fullfilled SIR 20 quality requirements based on SNI 06-1903-2000. Only natural rubber with liquid smoke coagulant that meets requirements for natural rubber CV-70 which has Mooney viscosity75-76.