Nanoliflerden eğrilmiş ipliklerin örme performansı ve kumaş özelliklerinin araştırılması
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Dosyalar
Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
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Yayıncı
Tekirdağ Namık Kemal Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Nanolifler son yıllarda dokuma olmayan formda (nanoweb) üretilmiş ve kullanılmıştır. Bu yüzeyler genellikle basitliği ve esnekliği sayesinde elektrolif çekimi yöntemi kullanılarak üretilir. Nanolifler, spesifik yüzey alanı ve küçük gözenek boyutları sağlarken, düşük mukavemetleri uygulama alanlarını ve kullanım ömrünü sınırlandırır. Nanolifler günümüzde ağırlıklı olarak filtrasyon, pil ayırıcı, ilaç dağıtımı, yara pansumanı, doku mühendisliği için dokusuz yüzey formunda kullanılmaktadır. Bununla birlikte, endüstriyel nanolif iplik eğirme sistemleri henüz mevcut olmadığından dokuma veya örme kumaş şeklinde kullanılamazlar. Bu çalışmada, PAN nanoliflerden eğrilmiş ipliklerin (nanolif iplik) örgüde kullanım olasılığının araştırılması amaçlanmıştır. Nanolif iplik, bu amaç için tasarlanan ve geliştirilen PLC kontrollü bir iplik makinası kullanılarak elektrospinning yöntemi ile eğirilmiştir. Bu nanolif iplik, kopma mukavemeti ve uzaması, kapilarite ve boyama performansı bakımından geleneksel akrilik ipliği ile karşılaştırılmıştır. Ardından laboratuvar tipi yuvarlak örgü makinesinde kumaş örnekleri örülmüştür. Nanolif ipliğin örme performansı, örme sırasındaki verimlilik ve ipliğin kopması açısından beklendiği gibi geleneksel ipliğin performansından daha düşüktür. Bu çalışma ile literatürde ilk kez, nanolif PAN ipliğinden makinede örülmüş kumaş örneği sunulmuştur. Nanolif ipliğin düşük mukavemetinden dolayı, örme makinesinde minimum hızda ve minimum gerginlikte örülebilmiştir. Ardından, kumaş numuneleri (geleneksel ve nanolif ipliklerden örülmüş kumaşları), bir nanoweb ile birleştirerek hava geçirgenliği ve aerosolfiltrasyon performansları açısından test edilmiştir.
Nanofibers have been produced and used in non-woven form (nano-web) for last two decades. These surfaces are generally produced by using electrospinning system. Nano-webs provide high specific surface area, interconnected pore structure and small pore sizes while their low strength limits their application fields and product life. Nano-fibres are currently being used for mainly filtration, battery separator, drug delivery, wound dressing, tissue engineering in the form of non-woven fabric. However they cannot be used in form of woven or knitted fabric as commercial nanofiber yarn spinning systems are not available yet.This study aims to investigate the possibility of use of the yarns spun from PAN nanofibers in knitting. The nanofiber yarn was spun by using a PLC controlled spinning machine. This nanofiber yarn was compared with ring spun yarnproduced by using conventional acrylic staple fibres in terms of their breaking strength, elongation, water absorbency properties and dyeing performance of both type of the yarns were studied. Then fabric samples were knitted by using both of yarns on a laboratory type of circular knitting machine. Knitting performance of the nanofiber yarn were lower than that of the conventional yarn as expected in terms of efficiency and number of yarn breakage during knitting. However, the first example of machine knitted fabric from nanofiber yarn wassuccessfullyobtained by optimizing yarn and fabric tension. Then, fabric samples were tested for their air permeability and aerosol filtration performanceby combining knitted conventional and nanofiber fabrics with a nano-web. The results show that fabrics knitted from nanofiber yarn has higher air permeability and better filtration performance than fabrics knitted from conventional yarn
Nanofibers have been produced and used in non-woven form (nano-web) for last two decades. These surfaces are generally produced by using electrospinning system. Nano-webs provide high specific surface area, interconnected pore structure and small pore sizes while their low strength limits their application fields and product life. Nano-fibres are currently being used for mainly filtration, battery separator, drug delivery, wound dressing, tissue engineering in the form of non-woven fabric. However they cannot be used in form of woven or knitted fabric as commercial nanofiber yarn spinning systems are not available yet.This study aims to investigate the possibility of use of the yarns spun from PAN nanofibers in knitting. The nanofiber yarn was spun by using a PLC controlled spinning machine. This nanofiber yarn was compared with ring spun yarnproduced by using conventional acrylic staple fibres in terms of their breaking strength, elongation, water absorbency properties and dyeing performance of both type of the yarns were studied. Then fabric samples were knitted by using both of yarns on a laboratory type of circular knitting machine. Knitting performance of the nanofiber yarn were lower than that of the conventional yarn as expected in terms of efficiency and number of yarn breakage during knitting. However, the first example of machine knitted fabric from nanofiber yarn wassuccessfullyobtained by optimizing yarn and fabric tension. Then, fabric samples were tested for their air permeability and aerosol filtration performanceby combining knitted conventional and nanofiber fabrics with a nano-web. The results show that fabrics knitted from nanofiber yarn has higher air permeability and better filtration performance than fabrics knitted from conventional yarn
Açıklama
Anahtar Kelimeler
Tekstil ve Tekstil Mühendisliği, Textile and Textile Engineering