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Expanding the possibilities of high-performance materials through our unique dispersion technology.
Utilizing our proprietary ultrafine particle dispersion technology developed over many years, Mitsubishi Pencil provides high-quality dispersions of hard-to-disperse materials such as PTFE (fluoropolymer), CNTs, and graphene.
Furthermore, regarding CNT and graphene, we offer customized liquid dispersion services. We can mix these nanomaterials with raw materials specified by individual clients, including resins and inorganic materials, to meet their unique requirements.
　
　　・ Achieving Both High Solid Content and Low Viscosity:
　　　　　　We realize low-viscosity, high-solid-content slurries
　　　　　　that maintain a uniform particle size distribution without
　　　　　　compromising coatability. This simultaneously increases
　　　　　　energy density and reduces the load on the drying process.
　　・ Flexible application to both aqueous and solvent-based (NMP)
　　　 systems:
　　　　　　We support the preparation of not only non-aqueous systems
　　　　　　(such as NMP) that require strict low-moisture control, but
　　　　　　also aqueous dispersions with preservative systems enhanced
　　　　　　by our proprietary technology. This expands your options
　　　　　　for processes while reducing environmental impact.
　　・ Comprehensive Development Support:
　　　　　　We go beyond simply supplying dispersions to offer a fully
　　　　　　integrated suite of solutions tailored to your needs
　　　　　　-from cathode and anode slurry preparation to electrode
　　　　　　coating trials.
　
　[Dispersion and Mixing]

◆ PTFE dispersion 　Through developing advanced inks, we mastered ultrafine particle dispersion technology. Our PTFE dispersion applies this expertise to distribute fine PTFE particles, unlocking the benefits of this high-performance engineering plastic. Empower your products/processes with the unique properties of PTFE using our innovative dispersion solution.

　For more details, please click. 「here.」
　

◆ CNT dispersion for 　 battery conductive agent 　Mitsubishi Pencil enhances battery performance with innovative dispersion technology, optimizing the effectiveness of carbon nanotubes (CNTs) as a conductive additive.

　For more details, please click.「here.」
　　

◆ Graphene dispersion for 　　　 battery conductive agent 　Mitsubishi Pencil's graphene dispersions have demonstrated improvements in battery charge-discharge cycle performance.

　For more details, please click.「here.」
　　

　[PTFE dispersion]
　

Our PTFE dispersion is a liquid material that achieves a stable, nano-level dispersion of PTFE, successfully overcoming the traditional challenge of achieving uniform dispersion in organic solvents.
It is easy to mix with resins and varnishes, and can be smoothly introduced into existing production lines.
By maximizing the inherent properties of PTFE?including low dielectric constant, excellent water/oil repellency, and low friction?this product helps improve electrical characteristics, sliding properties, and wear resistance.
The material is highly anticipated for use across various applications, including high-frequency substrates, low-dielectric resins, functional coatings, molding materials, and high-performance battery binders.
　

Through our unique compounding and dispersion technologies, we have overcome the challenges specific to PTFE and realized excellent dispersion stability.

　　・ Inhibition of fibrillation and gelation: Prevents viscosity
　　　increase and particle coalescence to maintain stable liquid
　　　quality.
　　・ Uniform Particle Distribution: Nano-level PTFE disperses
　　　uniformly throughout the resin, maximizing the material's
　　　inherent performance.
　　・ Easy blendability: Because it is stably dispersed in various
　　　solvents, it can be smoothly mixed into existing resins and
　　　varnishes.　　

By using our dispersant, the micronized PTFE particles are uniformly dispersed within the film matrix resin. This prevents agglomerated particles from appearing on the surface, and maintains the uniform particle distribution inside the film even if the surface is scraped. Additionally, grinding the film exposes the embedded particles to the surface, which is expected to improve water repellency and other properties.

　[Expected Effects and Intended Uses]

The excellent properties of PTFE can be imparted to coating films and molded products.
　　・ Improvement of Electrical Properties: Reduction of Relative
　　　Permittivity (Dk) and Dielectric Dissipation Factor (Df)
　　　　(High-Frequency Substrates / Low-Dielectric Resin Materials)
　　・ Enhancing Surface Functionality: Superior Water and Oil
　　　Repellency
　　・ Improved sliding performance: Enhanced wear resistance
　　　through friction reduction
　　・ Energy Field: High-performance binders for batteries
　　
We will propose the optimal specifications tailored to your manu- facturing processes and required characteristics.
　　
　　・ Adjustable items: Solvent type, PTFE concentration, viscosity,
　　　particle size, etc.
　　・ We support everything from small-lot prototype development to
　　　mass production.
　　
We can flexibly accommodate your needs and required quantities.Please feel free to contact us.
　

　[Next-generation battery materials]
　　

Item	Details and Scope of Coverage
Target conductive materials	MWCNTs, SWCNTs, Graphene as a battery material, and various other poorly dispersible carbon materials
Dispersion medium	Evaluation of solvent-based (such as NMP), water-based (supporting proprietary preservation technology), and dry processing methods
Slurry characteristics	High solid content, Low viscosity, Uniform particle size control, Strict moisture content control
Scope of Services	Preparation of cathode/anode slurry, electrode coating, and scale-up studies