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首页> 外文期刊>Journal of King Saud University >The effect of silica on the properties of marble sludge filled hybrid natural rubber composites
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The effect of silica on the properties of marble sludge filled hybrid natural rubber composites

机译：二氧化硅对大理石污泥填充天然橡胶复合材料性能的影响

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摘要

Hybridization of natural rubber (NR) filled marble sludge (MS) and silica composite was prepared by adding various weight ratios of MS and silica. Compounding was carried out on a two-roll mill with total filler loading of 60 parts per 100 rubbers (phr). The composites were vulcanized at 140 °C. The effects of partial or complete replacement of MS with silica on physical characterization such as curing characteristics, mechanical and swelling parameters of composites were examined. Mechanical properties of composites, including tensile strength, elongation, modulus, tear strength, hardness, swelling parameters such as swelling ratio, volume fraction, crosslink density and shear modulus before and after aging, were analyzed. Results indicate that minimum torque, maximum torque, tensile strength, modulus, tear strength, hardness, and crosslink density volume fraction increased while elongation at break, swelling ratio and shear modulus decreased with the increasing silica loading in MS/NR/Silica hybrid composites. The aging test of corresponding hybrid composites was also evaluated at two different aging temperatures. The results in this work recommend that MS from marble processing industrial waste could be used as filler for cost savings in NR compounds.
机译：通过添加各种重量比的MS和二氧化硅，可制备天然橡胶（NR）填充的大理石污泥（MS）与二氧化硅复合材料的杂化。混炼在两辊磨机上进行，填料总填充量为每100橡胶60份（phr）。将复合物在140℃下硫化。研究了用二氧化硅部分或完全取代MS对物理表征（如复合材料的固化特性，机械和溶胀参数）的影响。分析了复合材料的机械性能，包括拉伸强度，伸长率，模量，撕裂强度，硬度，溶胀参数（例如溶胀率，体积分数，交联密度和老化前后的剪切模量）。结果表明，随着MS / NR / Silica杂化复合材料中二氧化硅含量的增加，最小扭矩，最大扭矩，拉伸强度，模量，撕裂强度，硬度和交联密度体积分数增加，而断裂伸长率，溶胀比和剪切模量则降低。还在两种不同的老化温度下评估了相应杂化复合材料的老化测试。这项工作的结果建议，大理石加工工业废料中的MS可用作填充剂，以节省NR化合物的成本。

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