Effect of Soluble Non-rubber Elements and Preliminary Processing on Water-rubber Balances

摘要

Natural rubber comprises around 90/100 cis-1,4 polyisoprene and 10/100 various substances (non-rubber elements). These non-rubber elements (proteins, metal ions, etc.) can affect the quality of rubber articles by increasing their water absorption capacity and decreasing their resistance to ageing. The effect of non-rubber elements on water-rubber thermodynamic equilibrium was examined by comparing the desorption isotherms for rubbers from two clones (AF 261 and GT 1), after various types of processing.