Gaute Juliussen | Toraphene: What's the real-world graphene loading needed to enhance polymers?
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What's the real-world graphene loading needed to enhance polymers?
A key technical question for any graphene composite is the loading percentage required to see a benefit. While some in the industry have claimed success with extremely low loadings, our experience shows that achieving consistent, high-quality results requires a more substantial, yet still small, amount of material. We have found that a loading of around 0.2% is typically needed to achieve the performance numbers we've demonstrated.
This 0.2% loading is still very low, allowing the final product to remain cost-effective and retain the properties of the base polymer, such as color and flexibility. However, it provides a realistic and reproducible benchmark for performance enhancement. This contrasts with some claims in the market of achieving significant improvements at concentrations as low as 0.01%.
Based on our extensive R&D, we have not been able to replicate consistent, high-level performance on virgin polymers at those ultra-low 0.01% loadings. Our focus is on delivering reliable and verifiable enhancements that our customers can depend on. Therefore, our formulations are optimized around a loading level that guarantees a significant and repeatable boost in material properties.
In this short video, you can learn:
* The typical graphene loading percentage Toraphene uses (0.2%).
* The context of ultra-low loading claims in the industry.
* The challenge of achieving consistent performance at extremely low graphene concentrations.
š **Clip Abstract**
Addressing the critical question of material loading, Toraphene typically uses a 0.2% graphene concentration to achieve its significant performance enhancements. This provides a realistic benchmark, contrasting with industry claims of effective reinforcement at ultra-low loadings like 0.01%, which the company has not been able to consistently replicate.
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#GrapheneLoading, #PolymerComposites, #MaterialEnhancement, #LoadingOptimization, #AdvancedMaterials, #Nanocomposites
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How much stronger can graphene make compostable plastic bags?
How much stronger can graphene make compostable plastic bags?
We've achieved a 28% improvement in tensile strength for compostable polymers compared to their virgin, unreinforced state. This enhancement is critical for bioplastics, which are typically much weaker than their synthetic counterparts. By adding a small amount of graphene, we can significantly boost their mechanical performance, making them a more viable alternative for demanding applications.
When benchmarked against leading competitors in the European market, our performance is even more impressive. We tested our film against MatterB by Novamont, the number one player in the bio-bags space, and demonstrated a 47% improvement in tensile strength. While this result isn't consistent across every single biopolymer formulation, it shows the high potential of our technology to create best-in-class materials.
We have also applied our technology to recycled synthetic plastics, achieving a 16% improvement in tensile strength. This is a more challenging area because synthetic plastics are already highly optimized with various chemical additives. However, a 16% enhancement is still a significant gain, demonstrating that graphene can add value even to mature material systems by reinforcing the polymer matrix.
In this short video, you can learn:
* The specific tensile strength improvement graphene provides to compostable polymers (28%).
* How Toraphene's material benchmarks against a leading industry competitor (+47%).
* The challenge and results of reinforcing already-optimized synthetic plastics.
š **Clip Abstract**
Toraphene's graphene-reinforced bioplastics demonstrate significant tensile strength gains, outperforming virgin materials by 28% and a leading European competitor by 47%. The technology also enhances recycled synthetic plastics, though the improvement is more modest due to their already optimized nature.
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#CompostablePolymers, #GrapheneReinforcement, #TensileStrength, #RecycledPlastics, #AdvancedMaterials, #PolymerComposites
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Can graphene composites outperform traditional fillers like carbon black and carbon fiber?
Can graphene composites outperform traditional fillers like carbon black and carbon fiber?
When we benchmark our graphene composites against traditional fillers, the results are clear. Compared to carbon black, we outperform on any performance measure, from tensile strength to barrier properties. The only metric where carbon black has an advantage is cost, which is a critical consideration, but for applications demanding higher performance, graphene provides a distinct advantage.
The comparison with carbon fiber is more nuanced, as it's typically used to create stiff, rigid composites in materials like epoxies for 3D printing. Carbon fibers are excellent for increasing stiffness and tensile strength in these applications. Graphene, with its 2D platelet structure, offers a different set of benefits, particularly in enhancing barrier properties and improving strength in flexible films.
There is likely a strong complementarity between these two advanced materials. By combining carbon fibers for structural stiffness with graphene for improved matrix integrity and barrier performance, you could potentially create a hybrid composite that captures the best of both worlds. While we have focused on flexible plastics, this synergy represents an exciting area for future development in high-performance rigid composites.
In this short video, you can learn:
* How graphene-polymer composites compare to carbon black-filled plastics.
* The different roles and performance benefits of graphene vs. carbon fiber reinforcement.
* The potential for creating hybrid composites using both graphene and fibers.
š **Clip Abstract**
When benchmarked against traditional fillers, graphene outperforms carbon black on all performance metrics, though at a higher cost. Compared to carbon fibers used in rigid composites, graphene offers different benefits, leading to speculation about synergistic effects from combining both materials to achieve optimal properties.
š Link in comments š
#GrapheneComposites, #CarbonFiberReinforcement, #HybridComposites, #PolymerComposites, #AdvancedMaterials, #MaterialsScience