Microstructures of Electrospun Polycarbonate Fibers With Solvent Mixture THF and DMF by SEM/TEM

Content Provider	Semantic Scholar
Author	Sung, Changmo
Copyright Year	2002
Abstract	Electrospinning or electrostatic fiber spinning is a dominating process over all conventional spinning methods due to the capability of producing fibers consistently in the sub-micron to nanoscale. This novel process also promises to produce fibers with large surface area as well as small pore size for versatile uses. The electrospinning process is carried out by polycarbonate pellet (sample) with mixtures of solvents THF (Tetrahydrofuran) and DMF (Dimethyleformamide) at various ratios (like 60:40, 70:30 etc.). The solutions were prepared with 13% and 14% concentrated polycarbonate at various ratios of THF and DMF at 50-55C temperatures. The basic process of electrospinning is simple to implement. An electrode connected to a high voltage power supply (10-25 kV) was inserted into the polymer solution contained within a capillary tube. The collector screen (SEM stud, and TEM copper mesh grid on aluminum foil) was placed at a distance of 10 to 12 cm from the tip of the capillary tube.
Starting Page	1230
Ending Page	1231
Page Count	2
File Format	PDF HTM / HTML
DOI	10.1017/s1431927602103254
Volume Number	8
Alternate Webpage(s)	https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1431927602103254
Alternate Webpage(s)	https://doi.org/10.1017/s1431927602103254
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article