Temperature Effect on the Fatigue Strength of Carbon Nanotube/Graphene Nanoplatelet/Epoxy Composites

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Project title

Code/計畫編號

MOST106-2221-E019-030

Translated Name/計畫中文名

溫度效應對碳奈米管/石墨烯微片/環氧樹脂複合材料疲勞強度之影響

Project Coordinator/計畫主持人

Yi-Ming Jen

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Mechanical and Mechatronic Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=12243934

Year

2017

Start date/計畫起

01-08-2017

Expected Completion/計畫迄

31-07-2018

Bugetid/研究經費

860千元

ResearchField/研究領域

機械工程

本計畫將以實驗方法探討溫度效應對同時添加多壁碳奈米管及石墨烯微片的環氧樹脂複合材料疲勞強度的影響。在研究規劃中，環境溫度（-25、0、25、50、75、90C）、兩種奈米碳加強材的總添加量（0.1、0.2、0.3、0.4、0.5 wt%）以及兩種奈米碳加強材的配置比例（碳奈米管：石墨烯微片＝ 10:0、9:1、7:3、5:5、3:7、1:9、0:10）將是三個考量的變因。研究首先將對取得的碳奈米管及石墨烯微片進行型態學分析，以瞭解碳加強材的基本外觀結構。在試片製備完成之後，也將對複合材料試片進行官能基檢測、黏彈性質檢測以及碳加強材的分佈檢測，以瞭解碳加強材及聚合物基材間的鍵結狀況、此類複合材料與溫度相關的黏彈特性、以及試片的製備方式對碳加強材在基材中分布狀況的影響。在機械性質的測試方面：本研究將針對具有不同碳加強材添加總量及配置比例的複合材料試片在不同控制溫度下進行靜態拉伸實驗及固定振幅的基本疲勞實驗，以瞭解上述變因對此類複合材料靜態及疲勞強度的影響。測試結束後，將對斷面進行觀測來探討在上述各種變因下，此類複合材料的破壞機制。研究中將提出適當的模型來描述靜態機械性質及疲勞壽命與上述變因間的關係。"The temperature effect on the static and fatigue strengths of the multi-walled carbon nanotube (CNT)/graphene nanoplatelet (GNP)/epoxy composites will be experimentally analyzed in the project. In the experimental program, the controlled ambient temperatures (-25, 0, 25, 50, 75, and 90C), the total amounts of two employed fillers (0.1, 0.2, 0.3, 0.4, and 0.5 wt%), and the fractional ratios between the two fillers (CNT：GNP＝10:0, 9:1, 7:3, 5:5, 3:7, 1:9, and 0:10) will be the considered variables. The morphological analysis of the as-received CNTs and GNPs will be conducted first to understand the shapes and structures of the employed fillers. Furthermore, the examinations of functional groups, visco-elastic properties, and dispersion of the nano-fillers will be also performed on the nano-composite specimens to understand the cross-links between the fillers and the matrix, the temperature-dependent visco-elastic behavior of the studied composites, and the effect of the manufacturing parameters utilized in the preparation of the specimens on the dispersion of the fillers, respectively. Besides, the tensile quasi-static tests and constant-amplitude fatigue tests will be performed to investigate the aforementioned variables on the static and fatigue strengths of the studied nano-composites. The examination of failure surfaces will be perfoemed after the tests to verify the relationship between the observed failure mechanisms and the controlled variables. Moreover, empirical models will be developed to describe the relationship between the static and fatigue mechanical properties and the experimental variables."

Keyword(s)

溫度
碳奈米管
石墨烯微片
環氧樹脂
奈米複合材料
靜態強度
疲勞強度
破壞機制
temperature
carbon nanotube (CNT)
grapheme nanoplatelet (GNP)
epoxy
nano-composite
static strength
fatigue strength
failure mechanism

DSpace CRIS

Temperature Effect on the Fatigue Strength of Carbon Nanotube/Graphene Nanoplatelet/Epoxy Composites

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