A5100655740- Polymer crystallization and properties
- Polymer Nanocomposites and Properties
- Liquid Crystal Research Advancements
- biodegradable polymer synthesis and properties
- Advanced Materials and Mechanics
- Carbon Nanotubes in Composites
- Polymer Nanocomposite Synthesis and Irradiation
- Robotics and Automated Systems
- Optical Coherence Tomography Applications
- Robotic Locomotion and Control
- Membrane Separation Technologies
- Tribology and Wear Analysis
- Robotic Path Planning Algorithms
- Laser Material Processing Techniques
- Synthesis and properties of polymers
- Natural Fiber Reinforced Composites
- Robotics and Sensor-Based Localization
- Photoacoustic and Ultrasonic Imaging
- Advanced Fluorescence Microscopy Techniques
- Surface Modification and Superhydrophobicity
- Microplastics and Plastic Pollution
- Coronary Interventions and Diagnostics
- Recycling and Waste Management Techniques
- Fiber-reinforced polymer composites
- Advanced Sensor and Energy Harvesting Materials
Korea Institute of Science and Technology
2025
Hanyang University
2003-2023
Anyang University
2023
Abstract Polymer nanocomposites consisting of multiwall carbon nanotube (MWCNT) and poly(ethylene 2,6‐naphthalate) (PEN) were prepared by a melt blending process in twin‐screw extruder. The storage modulus ( G′ ) loss G″ the PEN/MWCNT increased with increasing frequency, this increment being more significant at low frequency. terminal zone slope for decreased MWCNT content, nonterminal behavior those was related to dominant nanotube–nanotube interactions higher leading formation...
Abstract Carbon nanotube (CNT)‐reinforced poly(ethylene 2,6‐naphthalate) (PEN) nanocomposites were prepared by direct melt blending process in a twin‐screw extruder. There is significant dependence of the crystallization and melting behavior PEN/CNT on CNT content temperature. The incorporation may favor formation β‐form crystals nanocomposites, more amplified this effect. In nanocomposite system, promoted nucleation growth with higher rate simultaneously reduced fold surface free energy...
Abstract Polymer blends based on poly(ethylene 2,6‐naphthalate) (PEN) and poly‐(ethylene terephthalate) (PET) reinforced with a thermotropic liquid crystal polymer (TLCP) were prepared using melt blending process. consisting of conventional cheap polyester small quantity expensive TLCP are interest from an economic point view. The shear viscosity the decreased increasing rate depended content. lower values structural index for attributed to formation fibrillar structures having elongated...
Abstract Poly(ethylene 2,6‐naphthalate) (PEN) and poly(ethylene terephthalate) (PET) composite fibers reinforced with a thermotropic liquid crystal polymer (TLCP) were prepared by the melt blending spinning process to achieve high performance improved processability. Polymer consisting of cheap polyester small quantity expensive TLCP are interest from an economic point view industrial perspective. The increase in birefringence density TLCP/PEN/PET speed was attributable enhancement molecular...
Abstract Ternary blend fibers (TBFs), based on melt blends of poly(ethylene 2,6‐naphthalate), terephthalate), and a thermotropic liquid‐crystal polymer (TLCP), were prepared by process blending spinning to achieve high‐performance fibers. The reinforcement effect the matrix TLCP component, fibrillar structure with fibrils high aspect ratios, development more ordered perfect crystalline structures an annealing resulted in improvement tensile strength modulus for TBFs. An increase apparent...
Abstract The effect of electron beam (EB) irradiation on the properties and compatibility poly(ethylene 2,6‐naphthalate) (PEN)/poly(ethylene terephthalate) (PET) blends was investigated. Upon EB irradiation, PEN/PET underwent transesterification reactions, resulting in formation more random copolymers from original binary pair. degree increased with dose rate, all irradiated exhibited a single glass transition temperature. This indicated that reactions promoted by led to phase....
Abstract Thermotropic liquid crystal polymer (TLCP) microfibril‐reinforced poly(ethylene 2,6‐naphthalate) (PEN) composites with various intrinsic viscosities were prepared by a melt compounding method. Polymer consisting of bulk cheap polyester small amount expensive TLCP are interest from commercial perspective. The acts as nucleating agent in the TLCP/PEN composites, enhancing crystallization PEN matrix through heterogeneous nucleation. structural viscosity index was lower than that and...
Abstract BACKGROUND: The melt blending of thermotropic liquid crystal polymers (TLCPs) using conventional thermoplastics has attracted much attention due to the improved strength and tensile modulus resulting polymer composites. Moreover, because their low viscosity, addition small amounts TLCPs can reduce viscosity blends, thereby enhancing processability. RESULTS: In this study, TLCP/poly(ethylene 2,6‐naphthalate) (PEN) blend fibers were prepared by spinning improve fiber performance...
Abstract Thermotropic liquid crystal polymer (TLCP)/poly(ethylene 2,6‐naphthalate) (PEN) were prepared by a melt blending, and spun spin‐draw process. In this study, we suggest novel drawing technology using the CO 2 laser that can directly uniformly heat up fiber inside to prevent formation of ununiform structures in conventional The properties heat/laser drawn TLCP/PEN blend fibers superior those any other handled fibers, rather more excellent than annealed at 135°C for 10 min. It was...
The robot's decision-making is an essential component of the autonomous robot. To fulfill this component, accurate position estimation robot a fundamental prerequisite. Localization determines relative within map environment, and existing mobile robots have been extensively studied. However, localization still challenging for humanoids because bipeds' movement not as stable robots, camera view frames oscillate from side to side. Developing with high accuracy under above-limited constraints...