Mechanical properties of nanofiber composites made of pan and pa6 nanofiber mats
Başlık çevirisi mevcut değil.
- Tez No: 838619
- Danışmanlar: DR. INGA ĻAšENKO
- Tez Türü: Yüksek Lisans
- Konular: Makine Mühendisliği, Mühendislik Bilimleri, Mechanical Engineering, Engineering Sciences
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2023
- Dil: İngilizce
- Üniversite: Riga Technical University
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 52
Özet
The field of composite materials and nanofiber mats have been increasing in popularity in the field of engineering. Due to their small fiber diameters, nanofibers have unique properties that can be very useful in a wide variety of applications. For example, they have a large surface area to volume ratio, which makes them useful in applications such as filtration, tissue engineering, and energy storage. Polyamide 6 (PA6) and Polyacrylonitrile (PAN) are some of the most popular polymers used in the field of nanofiber and composite materials. Unfortunate events such as the pandemic and the increase in air pollution in the recent years has shown us the importance of air filtration in both medical masks and home air filtration systems. This research aims to improve the durability and efficiency of the filters by combining two polymers with different mechanical properties. PA6 polymer mats have a smaller fiber diameter, therefore having a larger surface area, which makes them more efficient in capturing particles however their elastic modulus is lower compared to PAN polymers making them less durable. To create the composite nanofiber mat electrospinning with a rotating drum is used. This method is more desirable due to its ability to produce long and continuous fibers that are aligned to some extent. Utilising this method three nanofiber mats will be produced. Two mats containing only one polymer and the final mat will be a combination of both PA6 and PAN polymers creating the composite material. Tensile tests will be applied on the samples collected from these mats and their mechanical properties will be compared with results from numerical analysis. As a result of this research, a composite material with an elastic modulus of 800 MPa has been made. The elastic modulus is higher than in pure PA6 nanofiber mats and has lower gaps between the fibers than in pure PAN nanofiber mats. This makes the newly created composite material more desirable in the field of filtration. This thesis consists of 52 pages, 43 figures, 3 tables, and 27 information sources in the list of references.
Özet (Çeviri)
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