Reinforced Fabrics using SP1/CNT
SP Nano provides Fabric coating services together with a high quality assurance system.
We can coat glass polyester, carbon and aramid fabrics, and yarns with a nanometric dispersion of the SP1/CNT compex. SP1/CNT coating. enables our customers to produce lightweight composite products with superior strength, all at an affordable cost.
For further information and enquiries, please contact us.
The SP1/CNT Complex
SP Nano uses its exceptionally stable protein, SP1, to integrate carbon nanotubes (CNT’s) in composite materials via fabric coating or dispersion in the matrix.
A genetically engineered SP1 was developed to form a complex with individually dispersed pristine CNT, the “SP1/CNT complex“, which uniquely binds to structural fabrics (carbon, glass and aramid fabrics), and can be dispersed in resins (epoxy, polyurethane and others).
Fabric coating with the SP1/CNT complex improves fabric adhesion to the resin, efficient load transfer and crack arrest by the SP1/CNT nanoparticles, and as a result improves the matrix-dominant mechanical properties of fabric-reinforced composites (FRC).
SP1/CNT complex dispersion specifications:
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Pristine MW-CNT (Arkema) |
CNT |
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L3; The recombinant L3SP1 protein |
SP1 variant |
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Dry weight: 2.9±0.5 |
SP1/CNT wt/wt ratio |
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Pure protein: 20 |
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Sonication |
Dispersion method: |
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4% CNT in Sodium phosphate buffer (10mM; pH 8.0) |
SP1/CNT concentration |
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<25% Precipitation after high speed centrifugation1 |
Short term stability |
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100% activity after >12 month incubation at 25 or 4oC |
Long term stability |
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<25% Precipitation1 after for more than 45 days at 45oC |
Extreme temperatures |
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Freezing: overnight; 100% Precipitation1 |
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The dispersion is nanometric (120 nm), no changes in size distribution upon centrifugation |
SP1/CNT complex size distribution2 |
1Was obtained by measuring the fraction of CNT remained in the supernatant upon centrifugation (0.1%; 20 min; 3000Xg). The concentrations of the SP1/CNT complex in dispersions were determined by flocculation followed by centrifugation and pellet dehydration & dry weight measurements.
2Nanoparticle tracking analysis version 2.3 Build 003
For further information and enquirers, please contact us.