Continuous Process to Manufacture Ellipsoidal Microparticles using Switchable Crosslinking of a Hydrogel Medium
- 주제어 (키워드) microparticle , ellipsoidal , In51Bi33Sn16(Field’s metal) , hydrogel , conductivity , composite
- 발행기관 서강대학교 일반대학원
- 지도교수 김상엽
- 발행년도 2024
- 학위수여년월 2024. 2
- 학위명 석사
- 학과 및 전공 일반대학원 기계공학과
- 실제URI http://www.dcollection.net/handler/sogang/000000076755
- UCI I804:11029-000000076755
- 본문언어 영어
- 저작권 서강대학교 논문은 저작권 보호를 받습니다.
초록
The containing of highly functionalized particles has garnered significant interest within cutting-edge fields such as aerospace and pharmaceuticals. This stems from their capacity to encompass attributes that are not inherent in a matrix. Metals, with free electrons, exhibit remarkable energy transfer capabilities, but elevated cost and density of the metal cause the low application as a reinforcement in the matrix. The strategy of elongating particles holds the potential to surmount limitations by enhancing the energy transfer-to-mass ratio via increasing the surface-to-volume ratio. However, the formidable surface tension of liquid metal poses a substantial impediment to the viability of this approach. In this study, I introduce a pioneering eco-friendly tensile methodology, the elongated microparticle manufacturing method, for fabricating microscale, high aspect ratio In51Bi33Sn16 particles with a low melting point. This method effectively mitigates recovery through surface tension by stretching the liquid spherical In51Bi33Sn16 droplets within a calcium alginate hydrogel, leading to the elongation of the particles. The tensile process and elongated particles proposed herein allow for functional improvements in composite compared to existing spherical particles, thereby paving the way for a new direction in the field.
more목차
I. Introduction 1
A. Research Background 1
B. Thesis Outline 6
II. Materials and Methods 7
A. Materials 7
B. Manufacturing of Calcium Alginate Filament 8
C. Tensile Modulus Measurement of Calcium Alginate Filament 9
D. Manufacturing of Elongated In51Bi33Sn16 Particles 10
E. Applications 12
III. Results and Discussion 14
A. Manufacturing Setup and Process 14
B. Modelling 17
C. Tensile Property of Calcium Alginate Filament 19
D. Elongation of In51Bi33Sn16 Particles 22
E. Degradation of Calcium Alginate 28
F. Applications 30
IV. Conclusions 35
References 37
