Environmental pollution issues such as the destruction of the marine ecosystem due to waste plastics continue in modern times. The US government's eco-friendly policy has been implemented due to the counterattack of microplastics(脫) span>Plastic flow is accelerating.

Cellulose nanofiber, which is rapidly emerging as an eco-friendly material among them, CNF is >It is receiving a lot of attention for its advantage of being able to replace glass fibers, etc.. However, it was expected that it would take more time to commercialize it as it showed limitations in that many problems occurred when applying polymer composite materials.

Therefore, Doowise Chem has the existing CNFdispersion, discoloration , The limitations of recycling have been improved through the development of mineralized cellulose nanofibers(mCNF) , It is said that it is supplying next-generation plastic reinforcing materials and is accelerating its commercialization. We met with Seo Young-soo, CEO of Dowise Chem, and listened to his story.

< figcaption class="cheditor-caption-text">Youngsoo Seo, CEO of Dowise Chem

Please introduce your company.

Worldwide, only 9%of plastics are recycled, causing various social problems as the main culprit of environmental pollution. Therefore, the company tried to produce recyclable nanomaterials in order to efficiently reduce plastics while worrying about the increasing plastic waste every year. This is because cellulose can drastically reduce the amount of plastic in that it reinforces the strength of plastic by injecting it into the inside of plastic.

Based on years of accumulated R&D capabilities, CNF Cellulose Nano High dispersion of fiber, Original technology for mineralization was secured. This shows infinite development potential in that it is possible for micro-diameter cellulose., Korea and the US, < /span>Owned patents in Europe and own intellectual property rights.

By possessing such an independent distributed technology, we are trying to solve global environmental issues. Also, Most of our researchers have master's degrees,, We are actively participating in in-depth and original R&D activities through joint research with master's and doctoral students at universities. More than half of the students are immersed in cellulose research, The staff are developing materials< span>.

Introducing the main business in detail

Douwise ChemCNFaggregation due to capillarity that occurs when drying and difficulty in dispersing when combined with polymers, span> In addition, it was noted that the field of application is limited due to discoloration due to thermal oxidation that occurs during the high-temperature process.

Across the world, research on this issue is being actively conducted, To solve these problems, Dowisechem CNF By mineralizing the surface, CNF minimizes the contact area with each other, at high temperature It suppresses thermal oxidation of and solves problems of aggregation and discoloration at the same time. In addition,, High dispersion is possible in the case of polymer compounding through the surface hydrophobization process, which makes it possible to make automobile interior materials, span>Can be used in all fields where plastic is used, such as home appliances, Cosmetics, We provide solutions that can be applied to various industries such as biomaterials.

Along with this, high barrier suitable for high-quality display and smart palm lighting QD (Quantum Dot) Development of capsules Also working on. QD means semiconductor nanocrystal, QD The optoelectronic properties are determined by the composition, size and shape. At this time,, 5-6nm large QD , small QD of 2-3nm create short wavelengths of blue and green span>. The QD display utilizes a blue LED light source and LED is QD through film to be converted to RGB of accurate light. The fact that natural colors can be realized as they are OLEDshows higher quality reproducibility.

typically QD is ambient moisture, temperature, It has the disadvantage of being very vulnerable to external factors such as oxygen, so there was a problem of using an expensive barrier film to protect QD from external factors. < /span>. For this part, we also introduced QDencapsulation technology to QD< span> was safely protected from the outside, and high value-added QD film could be manufactured with high productivity through the thermal processing extrusion process. QD in a solution state that is difficult to handle is powdered to make all QD particles. By evenly distributing it, , eliminates the decrease in light efficiency and QD introduces encapsulation of various colloidal nanoparticles to improve practicality. is raising.

If you have a future goal

Dowise Chem plans to further strengthen its global competitiveness based on its various intellectual property rights. Applicable to cellulose nanofibers (CNF) as well as CMF with micro diameter In addition to plastics, this technology is collaborating with various fields such as cosmetics. Dowisechem is currently providing mineralized cellulose nanofibers (mCNF) on a pilot scale, but , , span>We will soon enter the mass production stage and strive to provide stable supply to customers at competitive prices.

Recently, the development of an eco-friendly carbon dispersion liquid has been completed and has reached the mass production level., We will continue to developWe will advance the technology by taking advantage of the fact that novel technology can be commercialized immediately.. We intend to grow into a leading global company in the field of eco-friendly materials through the expansion of application to various fields.