Graphene SG – 135-7

SG-135-7 Graphene Nanoplatelets

Graphene nanoplatelets are advanced nanoparticles formed from ultra-thin layers of graphene, arranged in a way that maximizes their unique properties. Thanks to their planar structure and high-purity graphite composition, these nanoplatelets exhibit... high electrical and thermal conductivity, in addition to excellent mechanical resistance, as widely described in the scientific literature.

These nanoplatelets are especially effective for improve electrical conductivity and heat dissipation in different matrices, even at low concentrations. Furthermore, they promote significant mechanical reinforcement, increasing the impact resistance, rigidity, and durability of the materials into which they are incorporated. Graphene nanoplatelets also stand out for to improve barrier properties against gases and liquids., This effect is strongly associated with their high form factor and good dispersion, making them ideal for applications that require... protection, stability and long service life.

Not all graphene delivers the same results.
THE side size of nanoplatelets It is the key factor that defines Dispersion, mechanical reinforcement, barrier effect, electrical conductivity, thermal conductivity, and EMI shielding..

The family SG-135 It was developed to allow fine-tuning of properties, reducing cost, required load and formulation risks.

Try graphene nanoplatelets and discover how this material can enhance the performance of your solutions, bringing innovation and competitiveness to your business.

Applications of Graphene Nanoplatelets:

Take your composites to the next level with SuperGrafeno's graphene nanoplatelets! As high-performance additives, our nanoplatelets are perfect for a variety of materials, including PPO, POM, PPS, PC, ABS, PP, PE, PS, Nylon, and rubber.

Benefits that make a difference:

• Improvement in mechanical strength:
  • It increases the elastic modulus, tensile strength, and impact resistance.
  • Smaller platelets offer better dispersion and greater interaction with the matrix.
  • Significant results even at low loads (≈0.1–1%)
• Superior protection: It improves resistance to corrosion, abrasion, and the permeation of gases and liquids, contributing to greater longevity of the final products.
  • It creates winding paths that slow the diffusion of gases, liquids, and corrosive agents.
  • Smaller platelets exhibit better packing and greater barrier efficiency.
  • Ideal for coatings, paints, primers and technical polymers.
• Advanced properties: It introduces antistatic and electrostatic dissipation properties, as well as lubricating effects, in technical and industrial applications.
  • Larger platelets form conductive networks more easily.
  • Lower percolation threshold → more conductivity with less material
  • Excellent for ESD (electrostatic discharge), thermal dissipation, and electromagnetic shielding.
• Application flexibility: 
  • 0.1–3% by weight: mechanical reinforcement, barrier and dimensional stability
  • 1–5% by weight: onset of electrical and thermal conductivity
  • 10%: high thermal conductivities and EMI

Discover the potential of graphene nanoplatelets and offer products with superior performance. Innovate and surprise your customers with the quality and reliability that SuperGrafeno provides.

Properties of Graphene SG-135-7

SG-135 Family Application Indications:

Graphene nanoplatelets from the family SG – 135 with different diameters (SG – 135-7, SG – 135-18 and SG – 135-30) They offer variations in properties that can be useful in specific applications. 

 SG-135-7 nanoplatelet with a diameter of 7μm: Maximum dispersion, barrier properties, and uniformity.

This smaller size makes it easier to use in electronic devices, such as sensors, transistors and capacitors, where the electrical conductivity is essential. The reduced diameter allows for more efficient dispersion in polymer matrices and may be of interest for thin coatings or conductive paints.

Applications:

• • Anti-corrosion coatings
  • Functional paints and coatings
  • Sensors, electronics and thin layers
  • Composites where homogeneity is critical.

Why does it work better?
The smaller lateral diameter is more suitable for applications requiring high uniformity and where nanometric dimensions help integrate the material without compromising the microstructure.

• • It facilitates dispersion.
  • Reduces crowding.
  • It increases barrier efficiency even at low loads.

Practical result: Superior protection, uniform finish, and stable mechanical properties.

SG-135-18 nanoplatelet with a diameter of 18μmThe best balance between dispersion and conduction.

Recommended for structural composites, reinforcing materials and energy storage. The intermediate size balances good dispersion and improved mechanical resistance, being useful in batteries, supercapacitors and composite materials high performance.

Applications:

• • High-performance structural composites
  • Heat dissipation in polymers
  • Batteries, supercapacitors and conductive sheets

Why does it work better?
Larger surface area for interaction with other materials, without significantly compromising dispersion, making it ideal for increasing the rigidity and thermal conductivity.

• • Maintains good dispersion.
  • It forms conductive networks more easily.
  • It offers an excellent compromise between rigidity, conductivity, and processability.
  • Practical result: improved functional performance without sacrificing manufacturing.

Practical result: More functional performance without sacrificing manufacturing.

SG-135-30 nanoplatelet with a diameter of 30μmMaximum electrical, thermal and EMI conductivity.

The larger diameter is advantageous for structural applications, as building materials, polymer reinforcements, and large-scale industrial applications where the dispersion in matrices is less critical. It can also be useful in filtration membranes and protective barriers, due to its ability to cover larger surfaces.

Applications:

• • Electromagnetic shielding (EMI)
  • Polymeric heat sinks
  • Large-scale structural composites
  • Advanced building materials

Why does it work better?
The larger area allows for greater coverage and better mechanical performance in composites and protective barriers.

• • They drastically reduce the percolation threshold.
  • They create longer conduction pathways.
  • They exhibit superior in-plane conduction when aligned.
    

Practical result: More conductivity with less active material.

When not to use the SG-135 graphene family:

• In water-based or polar products/mixtures. The SG-135 family is highly hydrophobic.
• In applications where functionalization or oxidation are important.
• In these cases, see our products from the BlackSwan, FirstGraphene, and Graphene Oxides lines.

This high-purity graphene is the ideal choice for those seeking innovation and maximum performance in advanced technological projects.

Additional Information:
The incorporation of graphene into various composites results in significant improvements in the physical properties of the materials. Among the benefits are increased electrical and thermal conductivity, greater hardness, enhanced strength, and viscosity modification, providing superior performance. Graphene also has the potential to replace conventional materials, raising the quality and efficiency of its applications. For example, when integrated with resins such as epoxy, graphene can create lightweight and highly resistant materials capable of replacing steel in aeronautical structures. This not only reduces the weight of aircraft but also improves fuel efficiency and range. Furthermore, due to its exceptional conductivity, graphene can be applied in surface coatings to protect against electrical damage caused by lightning, offering an innovative solution for the aerospace industry.
Notice: All products supplied by SuperGrafeno come with product descriptions. SuperGrafeno assumes no responsibility for the misuse of the supplied material. All images on the website are for illustrative purposes only. Customers should be aware that the dispersion of graphene or other nanomaterials is not SuperGrafeno's responsibility. SuperGrafeno offers technical support and consulting services related to product dispersion and application only upon request, aiming to ensure the best results for your applications.