2024
DOI: 10.1002/app.55844
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Nano silica grafted on modified polyacrylonitrile fiber improves the interfacial strength of fiber‐reinforced concrete

Fayun Wei,
Xiao Xu,
Hailou Wang
et al.

Abstract: Cement is known to be brittle and usually reinforced with fibers. However, there is a lack of effective chemical bonding between organic fibers and inorganic cement, resulting in a weaker interfacial bonding strength. In this paper, amino hyperbranched polymer (HBP) was used to modify the surface of polyacrylonitrile (PAN) fibers, and then silica nanoparticles (SiO2 NPs) were grafted on the surface of modified PAN fibers to realize the inorganic treatment of organic fibers. The modified PAN fibers applied to c… Show more

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