【摘要】 为了研究砖红壤对天然橡胶特有的补强作用机理,模拟砖红壤的主要成分和比例,将不同添加量的SiO₂、Fe₂O₃和Al₂O₃经混合、研磨及高温烧结等工序制成混合粉体作为橡胶补强剂,并通过混炼加入天然橡胶中,考察砖红壤中对天然橡胶产生补强作用的主要成分和机理。结果表明,在有Fe₂O₃存在的混合料中,天然橡胶的补强效果明显,且随着Fe₂O₃的比例增大,硫化胶的拉伸强度和撕裂强度增大,补强效果逐渐加强。更多还原

【Abstract】 In order to research the reinforcing mechanism of latosol on natural rubber,the main composition and proportion of latosol were simulated. The mixed powders of SiO₂,Fe₂O₃ and Al₂O₃ were prepared by mixing,grinding and high-temperature sintering. The mixed powders were added into rubber as reinforcing agents to investigate the main components and reinforcing mechanism of latosol. The results show that the reinforcement effect of natural rubber is obvious with the mixed powers contain Fe₂O₃,and the reinforcement effect is gradually strengthened with the increasing proportion of Fe₂O₃.更多还原