Functionalization of Carbon Nanotubes into Materials with High Compressive Strengths

Period of Performance: 12/19/2008 - 12/19/2010

$725K

Phase 2 SBIR

Recipient Firm

Technova Corporation
3927 DOBIE RD
Okemos, MI 48864
Principal Investigator

Abstract

Cement-based materials with desirable compressive strength, moisture resistance, life-cycle economy and energy-efficiency are commonly used in civilian and military infrastructure. Their low tensile strength, brittleness and instability in aggressive environments are drawbacks which can be partly overcome by fiber reinforcement. When compared with conventional (micro-scale) fibers, graphite nanomaterials (nanotube, nanofiber and nanoplatelet) offer superior mechanical/physical attributes and distinct geometric features. The Phase I project developed minimally invasive non-covalent/covalent functionalization techniques and simple refinements of matrix to greatly improve the dispersion, interfacial interaction and reinforcement efficiency of graphite nanomaterials in cement-based matrices. Significant gains in flexural strength and energy absorption, abrasion and impact resistance, and barrier qualities were realized with