Donggyun Kim
Student member, Korean Society of Rheology
Student member, The Korean Fiber Society
Donggyun Kim received his M.S. in Fiber System Engineering from Dankook University, and is currently serving as a Military Science and Technology Soldier in the Republic of Korea Army (ROKA).
I hold a Bachelor of Science degree in Fiber System Engineering from Dankook University. With expertise rheology, fiber spinning & synthesis, and organic chemistry, I strive to proposing ingenious analysis method, developing polymer composite, and mechanical property in his work.
While I was a master’s student, I developed an in-situ analytical framework integrating rheology and electrochemical impedance spectroscopy (EIS) to probe the dynamic internal structure of complex material systems. My research focuses on understanding how shear-induced structural evolution and electrical responses in conductive particle suspensions and battery slurries.
My projects were motivated by industrial challenges observed during a visit to LG Energy Solution, I designed a rheological–electrochemical in-situ measurement system by integrating a rheometer with a potentiostat. This approach enabled real-time characterization of nanoparticle network evolution under flow, revealing the relationship between structural breakdown and impedance response. Notably, the method allowed for the identification of yield behavior in viscoelastic fluids through EIS, providing a new pathway for monitoring dispersion stability during electrode processing.
I have been published as a first-author paper in ACS Applied Engineering Materials and recognized with an Excellence Oral Paper Award at the Korean Fiber Society Conference. Extending this approach, he further developed PCL–MXene nanocomposites with enhanced interfacial adhesion and dispersion stability, achieving scalable fabrication via injection molding while simultaneously advancing in-situ analysis method.
Currently, I am serving as a Military Science and Technology Soldier in the Republic of Korea Army (ROKA). My duty is developing and upgrading military supplies data based eXplainable AI (XAI) program in the AI/SW Development Department at the Army Logistics Command.
I aim to pursue a Ph.D. to study additive manufacturing approaches that bridge the processing of structural, electronic, and functional materials with real-world industrial applications, particularly in energy storage and soft functional materials.
I am fluent in both English and Korean.
In free time, I enjoy workout at the gym and reading books. And my nickname among his friends is Gym Rat.
You can pronounce my name as “Dong-gyoon Kim“.
Last updated: March 2026
Academic profile
Dankook University, M.S.
2023 - 2025
Department of Fiber System Engineering
Dankook University, B.S.
2019 - 2023
Department of Fiber System Engineering
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Donggyun Kim received his Master of Science (M.S.) degree from Dankook University (DKU). The Department of Fiber System Engineering at DKU is widely recognized for its strong focus on fiber applications, nanotechnology, and mechanics—areas that closely align with his research interests.
The M.S. program is structured in three progressive stages: it begins with foundational coursework, advances to the development of professional competencies, and culminates in a thesis reflecting each student’s specialized research area. DKU also provides access to the Dasan Joint Research Equipment Center, located at both the Jukjeon and Cheonan campuses, offering shared laboratory facilities and advanced instrumentation.
Through his graduate studies, Donggyun has expanded his research perspective by developing expertise in rheological–electrochemical in-situ analysis, bio-composites, and polymer-based solid-state electrolytes. These experiences have prepared him to contribute meaningfully as a future engineering researcher and to advocate for an advanced and sustainable research environment.
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Donggyun Kim earned his Bachelor’s degree from the Department of Fiber System Engineering at Dankook University (DKU), which is well known for its strong foundation in polymer science, processing engineering, and applied mechanics. The program emphasizes a multidisciplinary approach that integrates fundamental theory with practical engineering applications to address complex material and processing challenges.
Through rigorous coursework and hands-on laboratory experience, he explored the relationships between material structure, flow behavior, and processing conditions. In addition, starting in 2021, he worked as an undergraduate researcher, studying residual stress in lithium-ion battery anode coatings.
These experiences became a foundation for understanding the power of research and enabled him to view the world through an engineering perspective grounded in scientific principles. They also led him to believe that research can contribute meaningfully to society, motivating him to pursue deeper and more advanced engineering studies.
Publications
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<Abstract>
Understanding the internal structure of materials is crucial for developing and optimizing chemical and mechanical processes. Rheological analysis has elucidated the internal structure and interactions of complex material systems. However, this analytical method faces difficulties in sample preparation and measurement. In this study, an in situ combination of rheological measurement and electrochemical spectroscopy was introduced to investigate the internal structure of carbon black dispersed glycerol suspension. The electrochemical characteristics of the suspension were measured with respect to the shear rate and shear stress. The Nyquist plot was also analyzed according to the particle concentration. At a low concentration, the resistance decreased with an increase in the shear rate, while at a high concentration, the resistance increased. These results are attributed to the resistivity change of glycerol and the destruction of the network structure of carbon black particles. In addition, an abrupt increase in impedance was observed when the applied shear stress exceeded the yield stress.
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<Abstract>
Polycaprolactone (PCL) has garnered attention as one of the most important biodegradable polymers due to its biocompatibility, tissue compatibility, and high flexibility. To enhance its applicability in bioelectronic materials, the low conductivity and mechanical properties of the polymer need to be improved. In this study, polycaprolactone-based nanocomposites containing MXene particles were prepared by using injection molding. The hydrophilic feature of MXene results in poor dispersion in non-polar organic solvents and low compatibility with hydrophobic polymers. The MXene particles were subjected to surface treatment to achieve the strong interfacial adhesion between the filler particles and the polymer matrix, as well as the excellent dispersion of the filler. Physical and chemical characteristics of the nanocomposites analyzed. Furthermore, rheological and electrical analyses of the polymer melt were conducted to examine the internal structure of the MXene-embedded polymer nanocomposites. The results showed that the addition of a small amount, specifically 0.5 wt%, led to a significant improvement in both the mechanical properties and the electrical conductivity. In addition, the flow and deformation behavior of the molten polymer in the cavity were evaluated through injection molding simulation.
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<Abstract>
The solid-state electrolyte constitutes a major component in an all-solid-state lithium-ion battery. It plays a critical role in determining the lifetime and performance of the battery. Among the materials used in polymer-based solid-state electrolytes, poly (ethylene oxide) (PEO) is widely studied due to its high ionic conductivity and excellent solubility in lithium salts. However, the high crystallinity of PEO still remains a challenge to overcome, leading to poor ionic conductivity compared to other solid-state electrolytes. Herein, we fabricated MXene-embedded PEO nanocomposites for solid-state electrolytes using the injection molding process. MXenes were synthesized by using HF and MILD etching methods. The particle characteristics were evaluated through morphological, elemental, and structural analyses. In addition, the thermal, mechanical, and rheological properties of the solid electrolyte were examined. The solid-state electrolyte was injection-molded, and the flow and deformation of the molten polymer were modeled numerically. Also, the performance of the lithium-ion battery was simulated. The addition of MXene resulted in an approximately 80 times improvement of ionic conductivity.
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Status: Revision
Patents
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The present invention relates to an edible food packaging material, comprising: a first chitosan film layer made of chitosan The soybean film layer consisting of the separation soybean protein it is laminated on the first chitosan film layer The second chitosan film layer consisting of chitosan it is laminated on the soybean film layer And the bonding layer adhering the first chitosan film layer and soybean film layer, and the soybean film layer and the second chitosan film layer And a step of including.
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Status: Patent application, KR Patent
Application No. 10-2026-0003379, 2026-01-08, Korean Intellectual Property Office
Awards & Honors
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“Characterization of the rheological percolation of carbon particle suspensions with electrochemical analysis”, Donggyun
Kim, Young Seok Song, The Korean Fiber Society, Bexco, Busan, South Korea, Oct. 2024. (Oral) -
In 2024, Donggyun earned merit-based scholarship awarded for top academic performance during his master’s program (1st place in the department).
Academic Excellence Scholarship (Merit-based scholarship), Dankook University, South Korea (2023)
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Led the team and presented the project, winning the Grand Prize in a hackathon for developing isolated soy protein and chitosan laminar edible food packaging film.
Grand Honor for Engineering Idea Contest, Dasan LINC 3.0 Business Division, South Korea (2023)
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Donggyun Kim was awarded the National Science and Engineering Scholarship by the Korea Student Aid Foundation (KOSAF).
He was the sole recipient nominated by his department, selected based on outstanding academic excellence and potential in STEM fields.
National Science & Technology Excellence Scholarship, Korea Student Aid Foundation, South Korea (2019)
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Donggyun Kim was awarded an Undergraduate Fellowship (Merit-based) upon admission, granted for outstanding academic performance.
Undergraduate fellowship (merit-based), Dankook University, South Korea (2019)
Activities
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Leadership position
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Donggyun Kim is currently enlisted in the Republic of Korea Army (ROKA) as aMilitary Science and Technology Soldier in Military Science & Technology Lab (MSTL). He started his duty on Jun 2025 and it will be expected on Dec 2026.
He is working as an eXplainable AI (XAI) systems researcher in the AI/SW department at the Army Logistics Command.
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Design Project in Fiber Formation (Prof. Wonsik Eom), Mar 2024 – Jun 2024
• Designed the melt spinning experiment conditions and guided an experiment practice for juniors.
Processing Investigation on Fiber Convergence Materials (Prof. Yong Seok Song), Sep 2023 – Dec 2023
• Instruct juniors in the methods of the analysis equipment: Rheometer, Internal Mixer, DSC, TGA, FT-IR, etc. -
Global Village program , Aug 2023
• Participated in a language and cultural exchange program involving students from the United States.
• Built strong connections during the program and maintained positive relationships afterward.*Fun fact: The exchange program invilving student, Tawnie who living in Irvine CA, we meet several times in CA when I visited the United States.
Professional organization
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Donggyun Kim is a student member of the The Korean Society of Rheology (KSR), a leading academic society dedicated to advancing rheology research across academia, industry, and research institutes.
KSR promotes global collaboration through international conferences, joint symposia, and the publication of the Korea-Australia Rheology Journal.
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Donggyun Kim is a student member of the The Korean Fiber Society (KFS), a leading academic society advancing fiber science, polymer engineering, and textile technologies across academia and industry.
KFS promotes innovation through academic conferences, industry collaboration, and education in advanced materials and processing.
Creditional ID: 004704