Project

Thermal

Most smartphone users swipe and tap their way from app to app, navigating their mini mobile computing world with ease. Very few think about the technology beneath their screens that conducts heat away from internal electronic components and batteries.

Graphene is one of the most thermally conductive materials in the world. Thermal conductivity can be an important tool for controlling waste heat in a range of applications including electronics, industrial equipment, aviation, and automotive.

1

Because graphene’s thermal conductivity is inherently anisotropic; it can vary depending on graphene platelet orientation. YKCCCL has the capability to successfully align graphene platelets to achieve significant thermal conductivity in a range of forms including pastes, coatings, and solid articles like sheets, plastics, and rubbers. Key applications for graphene’s thermal properties include:

Thermal paste

  • As a filler, graphene provides very high thermal conductivity (10 W/m-K and higher) along with the benefits of chemically inert particles, metal-free formulation, and stable materials cost. YKCCCL’s thermal pastes that are ideal for use in electronics as a thermal interface material.

ANG Thermal Foil

2

  • YKCCCL’s thermal foil products can be used for electronics cooling and “hot spot” reduction for electronics housings and as a heat spreader. Best in class thermal conductivity of up to 1,700 W/m-K allows extremely efficient thermal management in complex applications with challenging temperature, weight and volume requirements. These foils can also be customized to meet the needs of current and future generation electronics.

Graphene Nanocomposites

  • YKCCCL can formulate thermally conductive graphene nanocomposites to customers’ polymer and property specifications for applications like LED housings, electronics housings and heat sinks.

Paints & Coatings

  • Graphene provides several benefits as a paint and coating additive. In addition to barrier properties, graphene can impart electrical conductivity and increase thermal conductivity; often ideal for heat exchangers and similar devices.

 

Contact Us to learn more about how graphene can be used for your thermal management application!

 

Mechanical

Graphene is one of the strongest materials known to exist. Due to the C-C bonds that make up graphene, a single atom thick sheet possesses amazing tensile strength. In its pristine form, graphene is at least an order of magnitude stronger than steel, Kevlar, and basically every other material. This intrinsic strength is of great interest to many in the academic and research community.

Unfortunately, nothing in life is pristine and defect-free. While YKCCCL’s graphene materials are strong, they are not yet ready to build a space elevator (yet…). As such, they are often used as reinforcements in a variety of materials. Graphene can be incorporated into a variety of plastics, rubbers, and ceramics to enhance the mechanical properties of the overall structure.

One of the key factors in determining the level of mechanical enhancement lies in the coupling between the base material and the graphene. In many cases, it is necessary to functionalize the graphene with specific chemicals on the surface of the platelet. This functionalization provides a robust bonding mechanism between the graphene and the matrix.

Contact Us to learn more about the types of functionalization available and how best to incorporate graphene into your material for mechanical enhancement.

 

Electrical Conductivity

Electrical conductivity is the capstone of graphene’s suite of property enhancements. Highly mobile “pi” electrons can travel in the planar dimensions of a graphene platelet with a very high electron mobility. With most epoxy, polymer and paint materials, an antistatic level of electrical conductivity can be achieved. Unlike carbon black, electrical conductivity can be achieved without sacrificing mechanical strength –even at comparatively high loading levels. This electrical conductivity can also be imparted to polymer masterbatch, conductive pastes, and filaments for additive manufacturing (3d printing).

3

Another benefit of electrical conductivity is EMI shielding. At low loading levels, graphene nanoplatelets can add 30 decibels of EMI shielding in the range of 8-13 GHz. With optimum formulation, graphene can produce lightweight, chemically inert, and cost effective EMI shielding paints and coatings.

The long term dream of every graphene formulator is near-metallic conductivity. Imagine a conductive ink that can be applied with ink jet printer, rotograveur, or screen printing to create lightweight, flexible electronic circuits. Imagine a conductive filament or paste that can be deposited by an additive manufacturing process, creating active circuits in three dimensional objects. Ultimately, a pattern-able, spray-able graphene-based coating could be used to create nano-scale circuits in the 21st century wafer fab.

Contact Us to discuss your electrical conductivity needs and talk about the most effective graphene products for your formulation needs.

 

Barrier

One of graphene’s key properties that is often underappreciated is its ability to block all kinds of gasses and liquids. A pristine sheet of graphene is, in fact, impermeable to even the smallest of molecules, hydrogen and helium. This shielding property of graphene may have significant impact on many aspects of our daily lives.

As an example, take the metals that make up our cars, planes, and boats, support our bridges, and build our homes and offices. Many of these metals corrode or rust due to the constant bombardment of water vapor and oxygen from the surrounding air. Graphene resists this bombardment and can prevent or greatly reduce the degradation of the underlying materials. Furthermore, due to its nano-scale nature, graphene will actually create a maze-like effect where each oxygen molecule must travel great distance to ever reach the metal.

This barrier nature of graphene materials can be expanded beyond metals to more everyday items. Food packaging, for instance, is an area of huge significance. Every year, billions of dollars of food goes to waste because of insufficient packaging. By incorporating graphene materials into the plastic packaging, food manufacturers can extend the shelf life of the materials; saving both money and food.

And moving in a completely different direction, the barrier properties of graphene can be put to use in a range of chemical and gas detectors. These detection devices “sense” a change when a molecule interacts with the sensor material. The fact that molecules cannot squeeze through the graphene sheet means that every molecule that interacts with the graphene is a molecule that is detected; leading to extremely accurate and sensitive sensors.

YKCCCL Materials believes that this barrier property of graphene must be overlooked no longer. By incorporating our advanced graphene materials into a range of coatings and composites, YKCCCL can take advantage of the shielding effect of graphene.

Contact Us to learn more about our how graphene can be used as a barrier material in your application!

 

Energy

Imagine a world where you cell phone charges in minutes and lasts for days; or where your electric car can take you hundreds of miles before you need to recharge. This is the energy storage world that graphene materials enable.

Graphene will have a dramatic impact on every aspect of life through its use in energy storage and generation devices. Supercapacitors, lithium ion batteries, and fuel cells all can benefit from one or many of graphene key properties. Not only will batteries and other energy storage devices be able to be charged quickly and store a tremendous amount of energy, they will also be small, lightweight, flexible, and safe.

In order to store the incredible amounts of energy possible in graphene enhanced batteries and supercapacitors, it must first be generated. Graphene plays a key role in this too. Among other applications, graphene has found use in advanced photovoltaics due, in large part, to its highly conductive and transparent properties. Solar cells made using graphene will be able to generate the energy to power our lives and charge our graphene enhanced batteries.

5

At YKCCCL Materials, we are actively and aggressively working with our partners and customers on a range of graphene enabled energy storage and generation technologies. YKCCCL has the scale, quality, technology, and experience to offer significant advantages regardless of the end application. Whether it is batteries or solar cells, supercapacitors or fuel cells, YKCCCL’s graphene can help bring future technology to the present!

Contact Us to learn more about our energy storage projects and technologies!

 

Custom

YKCCCL’s team of scientists is accelerating commercialization for customers by partnering with companies to help develop their end use products or perform the research and development work they need. In addition to significantly reducing time to market and saving costs, the YKCCCL team helps you select the right nano graphene material, and functionalize it while providing access to critical process efficiencies. These steps dramatically lower the risk associated with innovative product development while helping you gain the competitive edge you need.

6.png

With our in-depth knowledge and field experience, we can work with you to integrate nano graphene platelets (NGPS) into existing products to enhance performance or create new products for nearly limitless uses in the aerospace, energy, defense, automotive and telecommunications markets. Partnership and co-development also provide the opportunity to license our patented technologies and work with best class practices.

Contact Us today. We want to answer your questions and talk with you about your needs.

 

 

 

 

Advertisements