He-Ne Laser Protection Barrier by Means of Poly(tetrafluoroethylene-perfluorovinyl ether) Grafted by Acrylic Acid and Complexed with Cu(II).

Appropriate eye and skin protection is a prerequisite for the safe operation of He-Ne laser in industrial and laboratory environments. This article reports on the measurement of the optical parameters of Poly(tetrafluoroethylene-perfluorovinyl ether) grafted by acrylic acid and complexed with Cu(II) when exposed to He-Ne laser beam of wavelength of 632.8 nm and power 12.5 mW. Transmittance, reflectance, and refractive index spectra are presented. The study showed that the material has a protective level 4. Environmental conditions like thermal and fading processes were tested. This suggested that the material preserves its protective features as a protective eye and skin barrier of protective level L4. This was applied for an occupational working time up to 8 h, temperature up to 50°C, and for a time of 74 days after laser irradiation. [ABSTRACT FROM AUTHOR]