스트레처블 필름에 적용 가능한 실버페이스트 연구
- Alternative Title
- Research of silver paste application to stretchable film
- Abstract
- Currently, new trends in domestic display development trends are the rise of scalable displays. Lightweight, low-power, thin, lightweight and flexible stretchable displays, such as paper, have attracted a great deal of attention both academically and industrially as displays that visualize various information according to the deepening and popularization of informationization and convey it to human beings.
In order to realize a scalable display, it is necessary to combine stressable substrates, organic materials for low temperature processes, inorganic materials, stressable electronics, encapsulation and packaging technologies. In this case, the stress- Reliability, and price, and it is widely considered to be applied due to ease of processing, suitability of continuous process, and the like.
In addition, due to the development of various materials and technologies, the strainable electronic device can be used for various application fields because it can operate even if the substrate is reduced or expanded by making the existing photoelectric device on the substrate. Recently, (IOT), vehicle electronic devices, and intelligent (AI) robots.
In this study, a flexible silver paste was prepared using a resin with a low glass transition temperature (Tg) and a high molecular weight. The Tg is the temperature at which the rubber becomes a state, and when the Tg is lower than the room temperature, flexibility and stretchability of the resin are different. In addition, a transparent urethane film having excellent stretching properties was produced, compared with a commonly used urethane film. In order to analyze the difference of elasticity according to the film, the development of stretchable silver paste suitable for stretchable electrode pattern and the production of stretchable film were aimed. In this study, screen printing method was used as electrode forming method. This printing method is suitable for mass production of devices, cost reduction, and high quality.
- Issued Date
- 2019
- Awarded Date
- 2019. 2
- Type
- Dissertation
- Publisher
- 부경대학교
- Alternative Author(s)
- Kwon bo seok
- Affiliation
- 부경대학교 대학원
- Department
- 대학원 인쇄공학과
- Advisor
- 남수용
- Table Of Contents
- 1.서론 1
2.배경 이론 3
2.1.인쇄전자 3
2.2.전도성 페이스트 5
2.2.1.전도성 페이스트의 구성성분 7
2.2.1.1.금속 파우더 7
2.2.1.2.바인더 7
2.2.1.3.용제 8
2.2.1.4.첨가제 8
2.2.2.전도성 페이스트 분산 기술 9
2.2.3.Percolation point 및 Percolation curve 10
2.3.스트레처블 기판 11
2.3.1.스트레처블 기판 재료의 요구 특성 12
2.3.1.1.형태안정성 12
2.3.1.2.열전도성 14
2.3.1.3.표면특성 15
2.3.1.4.투과성 15
2.3.1.5.광특성 16
2.3.1.6.가격 경쟁력 16
2.3.2.스트레처블 기판 기술 17
2.3.2.1.Wavy structure 18
2.3.2.2.Porous mesh structure 18
2.3.2.3.Stretchable substrate 20
2.4.스트레처블 전극 기술 21
2.4.1.금속 나노와이어 전극 21
2.4.2.그래핀 전극 22
2.4.3.PEDOT:PSS 22
2.4.4.탄소나노튜브 전극 23
3.실험 25
3.1.실버페이스트용 시료 25
3.1.1.Ag 파우더 25
3.1.2.바인더 26
3.1.3.용제 27
3.2.필름용 시료 27
3.2.1.연질 우레탄 27
3.2.2.코팅 바인더 28
3.3.페이스트 및 필름 제조 29
3.3.1.페이스트 제조 방법 및 구성 29
3.3.2.필름 제조 방법 및 구성 30
3.4.측정 및 분석 32
3.4.1.레오로지 특성 평가 32
3.4.2.DSC 측정 33
3.4.3.인장특성 측정 33
3.4.4.스크린 인쇄조건 및 전도성 패턴의 인쇄성 평가 34
3.4.5.접착력 및 연필경도 측정 36
3.4.6.광학현미경 측정 37
3.4.7.신축에 따른 전도성 평가 38
4.결과 및 고찰 39
4.1.실버페이스트의 점도와 점탄성 결과 39
4.2.실버페이스트 및 3종류의 바인더 DSC 결과 41
4.3.인장특성 측정 결과 43
4.4.전도성 패턴의 인쇄성 평가 결과 44
4.5.접착력 및 연필경도 측정 결과 46
4.6.광학현미경 측정 결과 48
4.7.신축에 따른 전도성 평가 결과 49
5.결론 52
참고문헌 54
- Degree
- Master
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