🛡️ Defense-Grade Performance · Nanocarbon Bridging Technology · U.S. Patented

Tougher Composites.
Without the Weight Penalty.

Flexiphene™ reinforces the fiber-matrix interface in structural and antiballistic composites — enhancing delamination resistance, interlaminar shear strength, and energy absorption. The same surfactant-free nanocarbon technology validated by NASA JPL, now engineered for impact-critical applications.

U.S. Patents 10,049,783 / 11,961,630 B2. Available under standard NDA & MTA for defense and aerospace evaluation.

NASA Validated Technology
Surfactant-Free Interface
Defense & Aerospace Ready
Composite Reinforcement Performance — Validated Technology
ILS
Interlaminar Shear
Nanocarbon bridging across ply interfaces
Enhanced strength
ΔKIc
Fracture Toughness
Crack arrestment via nanocarbon network
Impact resistance
0
Agglomeration
SEM-confirmed uniform distribution
Zero clusters
0%
Batch Yield
Reproducible across production lots
Proven consistency
1wt%
Effective Loading
High efficiency at low addition rates
Low-dose performance

Composites Fail at the Interface — Not in the Fiber

In high-performance fiber-reinforced composites, catastrophic failure rarely occurs through the fibers themselves. It happens at the fiber-matrix interface through delamination and interlaminar shear failure — the weakest link in the structure. Nanocarbon reinforcement of this interface is the logical solution, but conventional dispersions create more problems than they solve.

❌ Conventional Nanocarbon Approaches

  • Surfactants weaken the fiber-matrix adhesion zone — the very interface you're trying to reinforce
  • Agglomerated nanocarbon creates stress concentration points under impact loading
  • Damaged, short-aspect-ratio CNTs provide little crack bridging capability
  • Inconsistent distribution means unpredictable ballistic performance across a panel
  • High loadings required to compensate for poor dispersion — adding weight and cost
  • Non-reproducible results prevent qualified production for defense and aerospace programs

✅ Flexiphene™ for Composites

  • Surfactant-free: clean fiber-matrix interface for maximum adhesion strength
  • Uniform nanocarbon distribution confirmed by SEM — no agglomerate stress risers
  • Intact high-aspect-ratio nanotubes bridge across cracks to arrest delamination propagation
  • Consistent particle distribution enables predictable, uniform ballistic performance across panels
  • Effective at 1 wt.% — minimal weight addition with maximum interface reinforcement
  • 90% batch reproducibility supports qualification and production-scale confidence

Nanocarbon Bridging at the Interface

Flexiphene™ disperses nanocarbon uniformly throughout the composite matrix so that the fiber-matrix interface is reinforced at every point — not just where clusters happen to land.

1

Interface Infiltration

Flexiphene™ liquid dispersion integrates directly into resin infusion, prepreg, and wet layup processes. Nanocarbon particles migrate to and anchor at the fiber-matrix boundary during cure.

2

Crack Bridging & Arrest

High-aspect-ratio nanotubes spanning across emerging cracks provide bridging ligaments that must be pulled out or broken before delamination can propagate — requiring significantly more energy per crack advance.

3

Interlaminar Reinforcement

Nanocarbon networks between composite plies reinforce the through-thickness direction — historically the weakest in laminated structures. Interlaminar shear strength and Mode I/II fracture toughness are enhanced without modifying the fiber architecture.

4

Energy Absorption

Under ballistic or blast loading, the nanocarbon network absorbs and redistributes energy across a larger area before local failure initiates. This delays penetration and reduces back-face deformation in panel applications.

5

No Property Trade-offs

Surfactant-free dispersion means the fiber-matrix bond itself is not degraded. In-plane tensile and compressive properties are preserved or improved — unlike surfactant-based additions that reduce modulus to gain toughness.

6

Compatible With Your Process

Works with CFRP, GFRP, aramid (Kevlar®), UHMWPE, and hybrid fiber systems. Compatible with epoxy, vinyl ester, phenolic, and polyurethane matrices used in defense and aerospace fabrication.

Where This Technology Applies

🪖

Personnel Protection

Hard armor plates and soft armor backing panels where improved delamination resistance translates directly to enhanced V50 performance without increased areal density.

🚁

Rotorcraft & Aircraft Panels

Structural composite panels requiring improved impact damage tolerance and delamination resistance under bird strike, hail, and FOD scenarios.

🚢

Naval Blast Protection

Hull and bulkhead panels in naval vessels where blast overpressure loading demands enhanced energy absorption and delamination arrest in composite structures.

🛡️

Vehicle Armor

Composite appliqué armor for ground vehicles where weight savings over ceramic and steel alternatives require the composite matrix itself to carry more structural load under ballistic events.

🛰️

Spacecraft Structures

CFRP primary and secondary structures requiring enhanced microcrack resistance under thermal cycling and MMOD (micro-meteoroid and orbital debris) impact scenarios.

🏗️

Critical Infrastructure

Blast-resistant composite cladding and structural wrap systems for critical infrastructure protection where delamination under pressure wave loading must be mitigated.

Defense & Military Law Enforcement Aerospace Naval / Marine Space Automotive (crashworthiness) Critical Infrastructure Research & Development

Composites Application FAQ

What fiber systems is Flexiphene™ compatible with?
Flexiphene™ has been formulated for compatibility with carbon fiber (CFRP), glass fiber (GFRP), aramid (Kevlar®), and UHMWPE fiber systems. It integrates into epoxy, vinyl ester, phenolic, and polyurethane matrix resins commonly used in defense and aerospace fabrication. Contact our materials scientists to discuss your specific fiber-matrix system and optimal integration protocol.
How does Flexiphene™ integrate into existing composite manufacturing?
Flexiphene™ ships as a liquid dispersion that can be directly mixed into resin systems prior to infusion, prepreg processing, wet layup, or filament winding. No special processing equipment is required. We provide application-specific protocols and our technical team supports your first trial runs. The dispersion is compatible with vacuum-assisted resin transfer molding (VARTM) and autoclave processing conditions.
Is Flexiphene™ available under controlled distribution for defense programs?
Yes. All samples are provided under NDA & MTA agreements as standard practice. For defense and government programs requiring additional documentation — ITAR compliance, full material characterization data, certificate of conformance — please contact sales@ctimaterials.com early in your evaluation to discuss your program requirements.
What loading level is recommended for composite applications?
Our validated data is based on 1 wt.% loading in polymer matrices. For composite applications, the optimal addition level depends on your resin system, fiber content, and target performance goals. Our materials science team will recommend a starting point based on your matrix chemistry and can guide you through a systematic loading study during your evaluation.

Evaluate Flexiphene™ in Your Composite System

Request a sample kit for integration into your resin system. Our materials science team will provide application-specific protocols and support your evaluation from first trial to qualification.

More Flexiphene™ Use Cases