Electrohilado (electrospun) como técnica para fabricar nanofibras poliméricas de polimetilmetacrilato (PMMA)

Abstract

The study proposed the use of the electrospinning technique (electrospun) with the aim of manufacturing Polymethylmethacrylate (PMMA) nanofibres, for which a polymeric solution was prepared with a concentration of 2g of PMMA in 10ml of Dichloromethane, which was taken to an agitation process at a temperature of 60°C for 6 hours at 600 revolutions per minute (RPM), at the end of the process a transparent solution with low viscosity was obtained. Over the course of three days, the Spraybase Syringe Pump A-0004-0001-01 electrospinning equipment was used, obtaining two samples on the first and second day and one sample on the third day, subsequently the samples obtained were introduced into a syringe whose internal diameter was 15. 9 cm, the results obtained by means of a variable voltage on day 1 were 15.97, 12.57, on day 2, 12.57, 5.39 and on day 3, 8.61 kV, the fibres obtained were collected in aluminium foil obtaining 5 samples, the fibres obtained were characterised by means of two methods which are: Fourier Transform Infrared Spectroscopy (FTIR) confirming the presence of functional groups of the polymer used PMMA and dichloromethane and Scanning Electron Microscopy (SEM), where images were obtained that proved the presence of PMMA nanofibres. With the information obtained, it is concluded that the best result was of sample 1 where ultrafine fibres were visualised reaching a lower porosity which was the interest of the present work since new ideas and alternatives are generated to manufacture PMMA polymeric nanofibres that will serve as a guide for further studies. It is recommended to consider the properties of the PMMA polymer and its solvent for its synthesis.