Yapay Zeka Hızlı Bakış & Çıkarımlar
AI InsightSu miktarýndaki artýþýn lif yapýsýnda deformasyona neden olduðu, besleme hýzýndaki düþüþün ise daha ince lif yapýsý oluþumuna katkýda bulunduðu gözlenmiþtir.
📌 3 Maddede Bu Makale
Özet
Bu çalýþmada, iki farklý nanolif uygulamasý denenmiþtir. Birinci uygulamada, çevresel sýcaklýkta solvent tekniðiyle nanolif elde edilemeyen Maleik Anhidrid graftlý Polipropilenden (MAH PP) nanolif elde edilmiþtir. Çözelti o sýcaklýðýnýn nanolif üretilebilirliðine etkisi incelenmiþtir. Sonuçta 70 C altýnda nanolif üretilemediði gözlenmiþtir. o Çözelti sýcaklýðý 100 C civarýnda iken bead yapýsýnda artýþ görülmüþtür. Yüksek sýcaklýðýn viskoziteyi düþürmesi bead oluþumunu arttýrmýþtýr. Diðer uygulamada ise selüloz nanowhiskers (CNW) ile beraber elastomeric polimerden(Polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene graft-maleic anhydride) (SEBS-g-MA) kompozit nanolif üretilmiþtir. Besleme hýzý ve çözeltideki su miktarýnýn lif yapýsýna olan etkisi incelenmiþtir. Su miktarýndaki artýþýn lif yapýsýnda deformasyona neden olduðu, besleme hýzýndaki düþüþün ise daha ince lif yapýsý oluþumuna katkýda bulunduðu gözlenmiþtir.
Abstract
In this study, two different applications related with nanofiber production have been studied. In one application, nanofiber was obtained from Maleic Anhydrite grafted Polypropylene (MAH PP) that it is not possible to produce nanofiber at the environmental temperature by solvent technique. The effect of the temperature of polymer solvent on nanofiber producibility has been investigated. It has been seen that it is not possible to produce nano fiber by o o solvent below 70 C. The bead on the nanofiber increases when solution temperature is around 100 C. Bead formation may be due to lower viscosity resulted from higher temperature. In the other application, elastomeric polymer (Polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene graft-maleic anhydride) (SEBS-g-MA) together with cellulose nanowhiskers (CNW) was used to produce composite nanofiber. The effect of feed rate and also the amount of water content on properties of composite nanofiber have been investigated. It has been seen that an increase of water content results to deformation of nanofiber morphology and decrease of feeding rate results to thinner fiber.