Bulk pellets of Flexiphene-PA 66 graphene nanocomposite at 1 wt% loading=

Three ASTM Type V tensile dogbone specimens of Flexiphene-PA66 1 wt% graphene nanocomposite, one intact and two broken halves after tensile testing at the University of Massachusetts Lowell

$Scanning electron microscope image at 1000× magnification showing the cryofractured surface of PA 66 reinforced with 1 wt% Flexiphene graphene nanoplatelets, demonstrating uniform dispersion without agglomeration$

$High-magnification scanning electron microscope image at 5000× of cryofractured PA 66 with 1 wt% Flexiphene graphene nanoplatelets, with the lab confirming nanoparticle agglomeration was not observed under multiple magnifications$

Flexiphene-Reinforced PA 66 Nanocomposite Pellets (1 wt%)

$1,000.00 - $1,300.00 / 0.5

Flexiphene-reinforced PA 66 nanocomposite pellets, 1 wt% graphene loading. Independently validated at UMass Lowell: +19% tensile strength, +16.8% tensile modulus, +18.9% flexural modulus, +10.5% flexural strength vs neat PA 66. No nanoparticle agglomeration observed in SEM. 4 kg available. Patented Flexiphene process.

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SKU: 090101 Categories: Engineered Nanocomposites, Flexiphene Surfactant Sheets, Graphene Nanoplatelets

Description

Cheap Tubes Flexiphene-Reinforced PA 66 Nanocomposite Pellets deliver production-validated graphene reinforcement in an engineering thermoplastic, ready for compression molding, injection molding, and extrusion processing.

The material is compounded using Cheap Tubes’ patented Flexiphene amphiphilic graphene surfactant technology, which disperses graphene nanoplatelets in the PA 66 matrix at 1 wt% loading without conventional surfactant residues. Independent testing at the University of Massachusetts Lowell engineering lab confirmed uniform dispersion (no agglomeration observed in SEM at multiple magnifications) and substantial mechanical property gains versus neat PA 66:

+19% tensile strength (68.5 → 83.1 MPa)
+16.8% tensile modulus (2,473 → 2,888 MPa)
+18.9% flexural modulus (1,157 → 1,376 MPa)
+10.5% flexural strength (68 → 76 MPa)

This is a low-volume engineered material produced in our patented Flexiphene process. Only 4 kg are currently available. The product is supplied as compounded pellets, dried and packaged for direct use in compression molding (ASTM Type V specimens were compression-molded for the UMass Lowell validation) or twin-screw extrusion / injection molding.

See the full case study: UMass Lowell validation of Flexiphene-PA 66 at 1 wt%.

Independent Test Data — UMass Lowell, May 2024

Tensile and flexural property gains in PA66 with 1 wt% Flexiphene graphene

Stress-strain curves from independent mechanical testing at the University of Massachusetts Lowell engineering test lab on pristine PA66 and PA66 compounded with 1 wt% Flexiphene graphene nanoplatelets. Multiple specimens tested per condition (4–5 per group) to characterize replication.

Tensile properties — 19% strength gain

Side-by-side tensile stress-strain curves: pristine PA66 reaching about 68 MPa across 4 specimens vs PA66 with 1 weight percent Flexiphene graphene nanoplatelets reaching about 83 MPa across 5 specimens, UMass Lowell testing — Tensile stress-strain curves: pristine PA66 (left, 4 specimens) vs. PA66 + 1 wt% Flexiphene GNP (right, 5 specimens). The GNP composite reaches peak stress of ~83 MPa vs. ~68 MPa for the pristine matrix — a 19% tensile strength improvement. Test method: ASTM Type V tensile specimen, 10 mm/min displacement rate. UMass Lowell engineering test lab, May 2024.

Material	Tensile Modulus (MPa)	Tensile Strength (MPa)	Elongation at break (%)
Neat PA66 (n=4)	2,475 ± 70	68.5 ± 2.0	4.05 ± 0.83
PA66 + 1 wt% Flexiphene GNP (n=5)	2,880 ± 49	83.1 ± 1.6	4.22 ± 0.03
Improvement	+16%	+19%	+4%

Flexural properties — 10.5% strength gain, 18.9% modulus gain

Side-by-side flexural stress-strain curves from ASTM D790 3-point bending: pristine PA66 reaching about 68 MPa across 4 specimens vs PA66 with 1 weight percent Flexiphene graphene nanoplatelets reaching about 76 MPa across 4 specimens — Flexural stress-strain curves from 3-point bending (ASTM D790, span-to-thickness 14:1, 1 mm/min): pristine PA66 (left, 4 specimens) vs. PA66 + 1 wt% Flexiphene GNP (right, 4 specimens). The GNP composite reaches peak flexural stress of ~76 MPa vs. ~68 MPa for pristine. UMass Lowell engineering test lab, May 2024.

Material	Flexural Modulus (MPa)	Flexural Strength (MPa)	Strain at yield (%)
Neat PA66 (n=4)	1,157 ± 31	68 ± 2.4	11 ± 0.2
PA66 + 1 wt% Flexiphene GNP (n=4)	1,376 ± 55	76 ± 1.2	9 ± 0.8
Improvement	+18.9%	+10.5%	−18%

Test methods

Sample prep: Pristine and 1 wt% Flexiphene-filled PA66 pellets vacuum-dried at 95 °C; ASTM Type V tensile dogbones and flex bars compression-molded.
Tensile test: ASTM Type V specimens at 10 mm/min displacement rate; 4–5 specimens per group.
Flexural test: ASTM D790 3-point bending, span-to-thickness ratio 14:1, displacement rate 1 mm/min; 4 specimens per group.
SEM: Scanning electron microscopy on freeze-fractured tensile dogbone surfaces — no nanoparticle agglomeration observed at multiple magnifications (1,000× through 5,000×).
Test facility: University of Massachusetts Lowell engineering test lab, May 2024.

Validated in Peer-Reviewed Research