Oxidation Degradation Analysis Of Cyclic Natural Rubber (Resiprene-35) Due To Storage, Heating And Ultraviolet Rays

Abstract

Research on analysis oxidative degradation and stabilization of cyclic natural rubber (resipren-35) using wax commercial antioxidants, BHT, and Wingstay has been conducted. Properties of physics as a result of treatment of storaging, heating and irradiating by ultraviolet rays was studied. Structural analysis of functional groups was studied using FTIR, thermal properties using DSC and TGA analysis, crystallinity by XRD and test of the solubility and viscosity of cyclic natural rubber (CNR) before and after the occurrence of oxidative degradation. Research results indicate that the analysis of cyclical natural rubber (resipren-35) very easily degraded due to crosslinking and oxidized due to reaction with air (oxygen and ozone) in storaging, heating and irradiating by ultraviolet rays. Antioxidants can inhibit the oxidation degradation rate with the effectiveness is Wingstay> BHT> wax though not very significant. Samples Resipren-35 compared to rubber cyclically-450 Alpex more easily degraded due to differences in the degree of cyclization or the number of C = C double bond in Resipren-35. The measurement results are expected to provide input technologically cyclic preservation of natural rubber products which are resistant to storage, heating and exposure to UV rays.

Keywords: Cyclic Natural Rubber, antioxidants, Polymer Degradation, Stabilizer, and Chain Breaking