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首页> 外文期刊>ACS Macro Letters >Studying Twin Samples Provides Evidence for a Unique Structure- Determining Parameter in Simplifed Industrial Nanocomposites
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Studying Twin Samples Provides Evidence for a Unique Structure- Determining Parameter in Simplifed Industrial Nanocomposites

机译:对孪生样品的研究为简化的工业纳米复合材料中独特的结构确定参数提供了证据

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The structure of styrene-butadiene (SB) nanocomposites filled with industrial silica has been analyzed using electron microscopy and small-angle X-ray scattering. The grafting density per unit silica surface ρ_(D3) was varied by adding graftable SB molecules. By comparing the filler structures at fixed ρ_(D3) (so-called “twins”), a surprising match of the microstructures was evidenced. Mechanical measurements show that ρ_(D3) also sets the modulus: it is then possible to tune the terminal relaxation time of nanocomposites via the chain length while leaving the modulus and structure unchanged.
机译:使用电子显微镜和小角X射线散射分析了填充有工业二氧化硅的苯乙烯-丁二烯(SB)纳米复合材料的结构。通过添加可接枝的SB分子来改变每单位二氧化硅表面的接枝密度ρ_(D3)。通过比较固定的ρ_(D3)处的填充物结构(所谓的“孪晶”),证明了微观结构的惊人匹配。机械测量结果表明ρ_(D3)还可设置模量:然后可以通过链长调整纳米复合材料的末端弛豫时间,而模量和结构保持不变。

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