화학공학소재연구정보센터
Industrial & Engineering Chemistry Research, Vol.57, No.14, 4935-4940, 2018
Enhanced Mechanical Performance and Antioxidative Efficiency of Styrene-Butadiene Rubber via 4-Aminodiphenylamine Functionalized Mesoporous Silica
We reported newly prepared functionalized nanoparticles (RT@MS) using mesporous silica (MS) with antioxidant intermediate 4-aminodiphenylamine (RT) via the linkage of KH-560. RT@MS was used as a nanofiller to fabricate styrene-butadiene rubber (SBR) composites. Under the condition of equal antioxidant and filler components, functionalized mesoporous silica can greatly enhance the mechanical properties of SBR owing to the uniform dispersion and strong interfacial interaction between SBR and RT@MS. Besides, the antiaging behavior of SBR/RT@MS composites was systematically evaluated by thermal oxidation exothermic enthalpies and oxidation induction time before and after solvent extraction. The results indicated that RT@MS showed much better thermal and oxidative stabilities and longer service life than the most commonly used antioxidant N-isopropyl-N'-phenyl-4-phenylenediamine in SBR due to the improved migration resistance of immobilized RT.