Study of ultraviolet light and ozone surface modification of polypropylene

Effect of Ultraviolet Light Irradiation on Bonding of Experimental Composite Resin Artificial Teeth

“…They can cause molecular bonds to be broken when absorbed in a molecule, a process referred to as photolytic chain scission 14) . The use of ultraviolet (UV) irradiation on the surface of polymers such as poly(dimethyl siloxane) [15][16][17] , polypropylene [18][19][20] , and poly(ethylene terephthalate) 18,21) have been studied in lithography and microelectronics. In terms of advantages, UV irradiation can improve the adhesive property of coatings as well as wettability and printability of polymers by changing the morphology and chemical properties of the polymer surface.…”

“…To date, the effects of UV irradiation have been observed as chemical and structural changes on the polymers. By means of Fourier transform infrared spectroscopy (FTIR), photolytic chain scission, formation of different functional groups, and degradation of polymer backbone have been observed 15,19) . By means of X-ray photoelectron spectroscopy (XPS), changes in chemical bonding energy have been detected 16,18,19,21) .…”

“…By means of Fourier transform infrared spectroscopy (FTIR), photolytic chain scission, formation of different functional groups, and degradation of polymer backbone have been observed 15,19) . By means of X-ray photoelectron spectroscopy (XPS), changes in chemical bonding energy have been detected 16,18,19,21) . Then, by means of contact angle measurement, changes in surface hydrophobicity have been monitored 15,16,18,19) .…”

Deposition of Carbon Nanotube Films on Polyamide and Polypropylene Substrates: A Computer Simulation Approach

“…The main effects of these treatments include cleaning (conversion of liquid films or solid contaminants into gaseous, volatile products), ablation/etching out of weak layers at the microscopic scale or even, selective etching of low molecular weight polymer chains and modification of chemical structures of surfaces through reactions of free radicals with surrounding gases 7,8,10,[13][14][15] . Out of these techniques, the UV/O 3 treatment/exposure is a convenient dry oxidizing method for activating the physicochemical features of polymer surfaces and other carbon materials 14 .…”

“…Out of these techniques, the UV/O 3 treatment/exposure is a convenient dry oxidizing method for activating the physicochemical features of polymer surfaces and other carbon materials 14 . It is a cost effective, environmentally friendly, rapid, and convenient technique 9 .…”