Imperial College London

Prof Milo Shaffer

Faculty of Natural SciencesDepartment of Chemistry

Professor of Materials Chemistry
 
 
 
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Contact

 

+44 (0)20 7594 5825m.shaffer Website

 
 
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Assistant

 

Mr John Murrell +44 (0)20 7594 2845

 
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Location

 

M221Royal College of ScienceSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{De:2018:10.1021/acsami.7b16136,
author = {De, Luca F and Sernicola, G and Bismarck, A and Shaffer, MSP},
doi = {10.1021/acsami.7b16136},
journal = {ACS Applied Materials and Interfaces},
pages = {7352--7361},
title = {“Brick-and-Mortar” Nanostructured Interphase for Glass Fiber-Reinforced Polymer Composites},
url = {http://dx.doi.org/10.1021/acsami.7b16136},
volume = {10},
year = {2018}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - The fiber–matrix interface plays a critical role in determining composite mechanical properties. While a strong interface tends to provide high strength, a weak interface enables extensive debonding, leading to a high degree of energy absorption. Balancing these conflicting requirements by engineering composite interfaces to improve strength and toughness simultaneously still remains a great challenge. Here, a nanostructured fiber coating was realized to manifest the critical characteristics of natural nacre, at a reduced length scale, consistent with the surface curvature of fibers. The new interphase contains a high proportion (∼90 wt %) of well-aligned inorganic platelets embedded in a polymer; the window of suitable platelet dimensions is very narrow, with an optimized platelet width and thickness of about 130 and 13 nm, respectively. An anisotropic, nanostructured coating was uniformly and conformally deposited onto a large number of 9 μm diameter glass fibers, simultaneously, using self-limiting layer-by-layer assembly (LbL); this parallel approach demonstrates a promising strategy to exploit LbL methods at scale. The resulting nanocomposite interphase, primarily loaded in shear, provides new mechanisms for stress dissipation and plastic deformation. The energy released by fiber breakage in tension appear to spread and dissipate within the nanostructured interphase, accompanied by stable fiber slippage, while the interfacial strength was improved up to 30%.
AU - De,Luca F
AU - Sernicola,G
AU - Bismarck,A
AU - Shaffer,MSP
DO - 10.1021/acsami.7b16136
EP - 7361
PY - 2018///
SN - 1944-8244
SP - 7352
TI - “Brick-and-Mortar” Nanostructured Interphase for Glass Fiber-Reinforced Polymer Composites
T2 - ACS Applied Materials and Interfaces
UR - http://dx.doi.org/10.1021/acsami.7b16136
UR - http://hdl.handle.net/10044/1/56579
VL - 10
ER -