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CNF Resin Composite STARCEL™

STARCEL™ (Cellulose Resin Composite)

Cellulose nanofiber (CNF) is a nanofiber obtained by defibrillating cellulose to the nano-size and has superior features including low density, high strength, high elastic modulus and low thermal expansion.
CNF can be applied as reinforcing fibers for thermoplastic resins. CNF resin composite is expected to be applied to various fields such as automotive, home electric appliances and building materials.

Product Series

  • The NC Series offers a lineup of products that contain various types of hydrophobic cellulose depending on the applications.
  • In addition to the NC Series formulated with CNF in the base resin, we now offer the HC Series incorporating cellulose microfiber.
SeriesCelluloseSurfacePrimary applicationsBenefit
NC Series (hard)CNFHydrophobizationStructural materialsHigh elasticity, low linear thermal expansion
NC series (soft/foam)CNFHydrophobization/reactivityFoam materials, rubber materials, structural materialsIntegration with polymers
HC SeriesMicrofiberHydrophobizationStructural materialsHigh thermal resistance, shock resistance
Hydrophobic CNF that can undergo crosslinking reaction (example)
Crosslinking reaction between reactive CNF and polymers
CNF配合樹脂 STARCEL®
STARCEL™ NC Series
第2回 エコプロアワード 奨励賞受賞(※1)
Received the Encouragement Award at the 2nd EcoPro Awards (*1)
*1: Our press release: CNF Composite Material STARCEL™ Receives EcoPro Award

Application to foam materials

(NC Series, foams, cushioning materials, sealing materials, etc.)

  • The bubble diameter shrinks, causing the foam to become denser, and the CNF reinforces the bubble walls to impart hardness and durability to the foam.
  • This allows the expansion ratio to be increased while maintaining the hardness of the foam, making the material lighter.
Observation of foam bubbles
Change in foam hardness as a result of CNF incorporation

Application to rubber materials

 (NC Series, tires, belts, hoses, etc.)

  • Addition of a small amount to carbon black (CB) compounded rubber imparts hardness.
  • This enables the design of compounds with high hardness and low tan δ.
Sample evaluation: Natural rubber
Sample evaluation: EPDM
Relationship between tan δ and E’ (natural rubber)

Application to structural materials

(NC Series, automobiles, household appliances, building materials, etc.)

  • Imparts hardness and strength to resin
  • Exhibits thixotropic properties and enables injection molding even at high concentrations.
  • Offers excellent recyclability.
Mechanical properties (reinforcement of polypropylene)
Comparison of the degree of deterioration of physical properties during recycling (PP)

High heat resistance and high impact grade   HC Series

(cellulose microfiber composite resin)

  • The pellets contain cellulose microfibers with nano-sized surfaces.
  • Lighter colored molded products are possible than with the NC Series.
  • Offers strong heat resistance (deflection temperature under load) and impact properties.
Heat resistance comparison
Comparison of impact properties

We are currently working with our customers to develop a wide range of practical applications for these products.
*These products are currently under development. For more details, contact us using the link below.

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