Ultrastrong and Stiff Layered Polymer Nanocomposites
Abstract
Nanoscale building blocks are individually exceptionally strong because they are close to ideal, defect-free materials. It is, however, difficult to retain the ideal properties in macroscale composites. Bottom-up assembly of a clay/polymer nanocomposite allowed for the preparation of a homogeneous, optically transparent material with planar orientation of the alumosilicate nanosheets. The stiffness and tensile strength of these multilayer composites are one order of magnitude greater than those of analogous nanocomposites at a processing temperature that is much lower than those of ceramic or polymer materials with similar characteristics. A high level of ordering of the nanoscale building blocks, combined with dense covalent and hydrogen bonding and stiffening of the polymer chains, leads to highly effective load transfer between nanosheets and the polymer.
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High volume fraction reinforcement composites using layer-by-layer and freeze-casting techniques have strengths of hundreds of MPa, an order of magnitude lower than limpet tooth strength.
“Additional comparisons could be made by consideration of high volume fraction reinforcement composites using layer-by-layer [31,32] and freeze-casting techniques [33,34]. In these cases, the composite material strengths are hundreds of MPa, highlighting the order of magnitude enhancement in tensile strength and general extreme mechanical performance of the limpet tooth samples.”
From Extreme strength observed in limpet teeth (2015) · cites this paper as [31]
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Extreme strength observed in limpet teeth
Barber, A. H., Lu, D., & Pugno, N. M. (2015) · Journal of the Royal Society Interface · doi:10.1098/rsif.2014.1326 · Cited by 218 · see citing works
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- Authors
- Podsiadlo, P., Kaushik, A. K., Arruda, E. M., Waas, A. M., Shim, B. S., Xu, J., Nandivada, H., Pumplin, B. G., Lahann, J., Ramamoorthy, A., & Kotov, N. A.
- Affiliations
- University of Michigan (US)
- Corresponding author
- Kotov, Nicholas A.
- ORCID
- Venue
- Science
- Published
- 2007-10-05
- Volume
- 318
- Issue
- 5847
- Pages
- 80-83
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2051584593
- Cited by
- 1,630
- References
- 0
- Citations by year
- 2026: 42 · 2025: 40 · 2024: 52 · 2023: 71 · 2022: 74 · 2021: 66 · 2020: 90 · 2019: 99 · 2018: 104 · 2017: 115 · 2016: 117 · 2015: 123 · 2014: 112 · 2013: 127 · 2012: 94
- FWCI
- 65.54
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer Nanocomposites and Properties
- Physical Sciences › Materials Science › Biomaterials › Clay minerals and soil interactions
- Physical Sciences › Materials Science › Materials Chemistry › Carbon Nanotubes in Composites
- Keywords
- clay nanocomposites, bottom-up assembly, transparent nanocomposites, nanosheet orientation, stiffness, tensile strength, load transfer, hydrogen bonding, covalent bonding, nanoscale building blocks
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