Department of Polymer Material Technology

DEPARTMENT OF POLYMER MATERIAL TECHNOLOGY

1. About the lab

Head of Department:  Assoc. Prof PhD, Ngo Trinh Tung

Tel:                  0989749665

E-mail:             This email address is being protected from spambots. You need JavaScript enabled to view it.

            Deputy head of departmant: Dr Trinh Duc Cong

Tel:                  0985887880

E-mail:             This email address is being protected from spambots. You need JavaScript enabled to view it./congvhh@gmail.com

            Contact adress: A18, 18 Hoang Quoc Viet street, Nghia Do ward, Cau Giay district, Ha Noi city, Vietnam.

2. Lab members:

3. Research areas:

• Research basic issues of chemistry and chemical modifications to develop new materials manufacturing technology in the polymer;
• Research and develop new environmentally friendly materials technology, functional polymers, polymers of natural origin and applications in economic-technical industries and security and defense;
• Taking scientific and technological services: identification analysis, physicochemical properties, environmental testing of polymer materials and other related fields;
• Consulting, transferring, implementing applications, and producing new materials at pilot scale;
• Training and international cooperation in the field of polymer

4. Main achievements:

- Cellulose nanocrystal from sugarcane bagasse  was made by sulfuric acid hydrolysis method with a diameter of 30-70 nm, a length of 30-70 nm and a high crystallinity of 87.9%. Cellulose nanocrystals can also be made by the TEMPO oxidation method with an oxidant concentration of NaClO 5 mmol/g, pH = 10, combined with ultrasonic vibration, resulting in a diameter of 10 -30 nm and a length of 40-60 nm, the crystallinity reached 66%.- A process for manufacturing nanocomposite rubber materials has been developed based on natural rubber (NR)/cellulose nanocrystals that have been manufactured by mixing in NR latex solution combined with rolling. - Cellulose nanofibers produced from paper pulp by using the TEMPO/NaClO/NaClO₂ oxidation system with crystallinity of 67.4%, diameter of 10-20 nm and fiber length of 25-40 nm.- The research team has registered an intellectual property certificate on the process of manufacturing waterproof coating products for paper based on cellulose microfibers. Research results show hydrophobicity through determining the measured contact angle of about 111^o- New polysaccharide-silver nanocomposites (Ag-chitosan nanocomposite, Ag-pectin nanocomposite and Ag-pectin-chitosan nanocomposite have been successfully synthesized by “green” methods. Fungicidal activity of new polysaccharide-Ag nanocomposites in relation to the pathogen of net blotch of barley leaves have been evaluated- Successfully fabricated various types of polymer nanocomposite materials based on epoxy/carbon fiber fabric and high-performance oriented aramid fiber fabric, intended for use as structural components in lightweight unmanned aerial vehicles (UAVs)- The research team focuses on electrochemistry as material synthesis for the energy storage and conversion applications included: (1) 2D and 3D material; (2) supercapacitors; (3) hydrogen evolution reactions; (4) battery recycling technology; and (5) rare earth refining technology.- The research team has successfully developed technological processes and an integrated production line for manufacturing Modified Atmosphere Packaging (MAP) films used in the post-harvest preservation of fruits and vegetables, with a production capacity of 400 tons per year. These films, based on thermoplastic resins and various additives, have been effectively applied to preserve several fresh produce such as lychee, dragon fruit, mango (Cat Chu variety), Ninh Thuan green grape, asparagus, bok choy, cabbage, tomato, green bean, chili, etc. The MAP technology helps extend the storage life of produce by 2–3 times compared to conventional methods, thereby enhancing product quality, increasing market value, and promoting the export of fresh fruits and vegetables. - The research team has developed production processes for various pre-harvest fruit bagging materials, including PE plastic bags, non-woven PP fabric bags, and paper-plastic composite bags. These materials have been successfully applied to fruits such as dragon fruit, Cao Phong orange, Dien pomelo, green skin pomelo, banana, and jujube, contributing to improved fruit appearance, protection, and overall quality. - The research team has developed technological processes for producing oxo-biodegradable masterbatch and biodegradable products at a capacity of 30 kg/hour. The products include biodegradable garbage bags, shopping bags, medical waste bags, food packaging bags, seedling pots, and agricultural mulch films — all of which meet the Green Labelling Scheme issued by the Ministry of Natural Resources and Environment. In parallel, the team has also conducted research on completely biodegradable plastic products based on PLA, PBAT, and starch, achieving notable results and fulfilling the Eco-label criteria set by the Ministry of Natural Resources and Environment.