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采用机械共混原位插层法制备乙烯基硅橡胶/蒙脱土纳米复合材料,在乙烯基硅橡胶混炼和硫化过程中实现与蒙脱土的插层复合。XRD和SEM扫描分析表明,蒙脱土的层间结构发生变化,蒙脱土的层间间距由1.28nm扩撑到4.90nm,乙烯基硅橡胶/改性蒙脱土纳米复合材料的tanδ值在160~175℃之间显著降低,内耗下降。
Vinyl silicone rubber / montmorillonite nanocomposites were prepared by mechanical blend in-situ intercalation method and intercalated with montmorillonite during the mixing and vulcanization of vinyl silicone rubber. XRD and SEM scanning analysis showed that the interlayer structure of montmorillonite changed, the interlayer spacing of montmorillonite was expanded from 1.28nm to 4.90nm, the tanδ value of vinyl silicone rubber / modified montmorillonite nanocomposites was 160 ~ 175 ℃ significantly reduced, the internal friction decreased.