Mineralized Cellulose Fibers

CelluloSysTM is a proprietary CNF technology of Dou Ys’ Chem,
providing a unique solution for a variety of applications.

What is cellulose?/ Why CNF?

CNF is an eco-friendly and sustainable natural fiber and is said to be the only alternative to glass/carbon fiber. CNF is composed of nanosized cellulose fibrils with a high aspect ratio (length to width ratio). Typical fibril widths are 5–20 nanometers with a wide range of lengths, typically several micrometers. The fibrils are isolated from any cellulose containing source including wood-based fibers (pulp fibers) through high pressure, high temperature and high velocity impact homogenization, grinding or microfluidization.
Cellulose, the unfibrillated material, is an important structural component of the primary cell wall of most plants and one of the most abundant natural polymer that is biocompatible and even edible. Cellulose is only used to mainly produce paperboard and paper. Smaller quantities are converted into a wide variety of derivative products such as cellophane and rayon. Conversion of cellulose from energy crops into biofuels such as cellulosic ethanol is under development as a renewable fuel source. Above these usages, high-end applications can be realized when it is converted into CNF.

What is unique about our CNF materials?

 
 
Cellulose nanofiber
Inorganic nanomaterials (SiO2, TiO2, ZnO, ZrO2, FeOx, others)
According to our technology, inorganic nanomaterials are incorporated on the surface of CNF under controlled chemical reaction condition. This new material called mCNF, a mineralized CNF, provides well-dispersion without making aggregation upon plastic composition and high stability during high temperature thermal processing. In addition, a special property can be harnessed by properly choosing the inorganic species adopted.
Inorganic Species
Suggested Applications
SiO2
CNF reinforced plastic, packaging film, water-selective membrane, optical film, battery separator, supercapacitor, etc.
TiO2
UV protection, UV-resistive film, High refractive index film, supercapacitor, etc.
ZnO
UV protection, sunblock, etc.
ZrO2
High refractive index film, electric applications, etc.
FeOx
Magnetic film, colored transparent film, etc.
Others
Suggestions are welcome.

What are the benefits of our mCNF?

Our CNF is rigorously surface-treated with inorganic nanomaterials.
Mechanical properties are greatly improved due to the well-dispersed nature.
Oxidative degradation of CNF is considerably prevented.