Study of dispersion mechanisms of modified SiC powder: electrostatic repulsion and steric hindrance mechanism

Wei, Yanan; Liu, Youxing

doi:10.1039/c9nj02131k

Cited by 8 publications

(1 citation statement)

References 17 publications

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“…The results showed that the addition of alumina and silica greatly improves the hardness of the material, which signi cantly enhances the cutting resistance of the fabric. A large number of studies have found that the surface treatment [20], mass fraction [21], size [22], and distribution [23,24] of IP will also affect the physical and mechanical properties of epoxy resin composites [25]. Among them, the dispersion of IP in the resin directly determines the physical and mechanical properties of the composites to a great extent.…”

Section: Introductionmentioning

confidence: 99%

Effect of Stirring Speed on Mechanical Properties of the Inorganic-Powder- Reinforced Epoxy Composite

Mao

Yan

Yao

et al. 2022

Preprint

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Inorganic powders (IPs), including SiO2, Al2O3, and Ca3Si3O9, were used as reinforcements and thermosetting epoxy resin was utilized as a matrix to manufacture IP/epoxy preform. The effects of stirring speed on the physical and mechanical properties of IP/epoxy composites were analyzed. Results showed that the tensile, flexural, and impact mechanical properties of IP/epoxy composites generally increased first and then decreased with the rise in stirring speed. They improved by 27.03%, 13.75%, and 8.78% when the stirring speed was 1000 r·min−1. When the stirring speed was less than 1000 r·min−1, the IP was unevenly distributed and prone to agglomeration and had weak junctions, which resulted in poor mechanical properties. When the stirring speed exceeded 1000 r·min−1, the particles with larger sizes were centrifuged, the powder was dispersed unevenly again, and the strength decreased.

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