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

By Cheap Tubes, INC

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. 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. 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 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: Neat PA66 (n=4) — Tensile Modulus 2,475 ± 70 MPa; Tensile Strength 68.5 ± 2.0 MPa; Elongation at break 4.05 ± 0.83% Material: PA66 + 1 wt% Flexiphene GNP (n=5) — Tensile Modulus 2,880 ± 49 MPa; Tensile Strength 83.1 ± 1.6 MPa; Elongation at break 4.22 ± 0.03% Improvement: +16% tensile modulus, +19% tensile strength, +4% elongation at break Flexural properties — 10.5% strength gain, 18.9% modulus gain 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: Neat PA66 (n=4) — Flexural Modulus 1,157 ± 31 MPa; Flexural Strength 68 ± 2.4 MPa; Strain at yield 11 ± 0.2% Material: PA66 + 1 wt% Flexiphene GNP (n=4) — Flexural Modulus 1,376 ± 55 MPa; Flexural Strength 76 ± 1.2 MPa; Strain at yield 9 ± 0.8% Improvement: +18.9% flexural modulus, +10.5% flexural strength, -18% strain at yield 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.