Modification of optical properties of polycarbonate by gamma irradiation

Sharma, Tanu; Aggarwal, Sanjeev; Sharma, Annu; Kumar, S.; Vk, Mittal; Kalsi, P. C.; Manchanda, V. Κ.

doi:10.1080/10420150701688503

Cited by 24 publications

(6 citation statements)

References 1 publication

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“…Furthermore, the values of the indirect band gap are found to be lower than the corresponding value of the direct band gap. Similar studies have been also reported in other materials [40,43,[47][48][49].…”

Section: Uv Visible Spectroscopysupporting

confidence: 83%

Effect of gamma irradiation on the properties of plastic bottle sheet

Kumar

Ali

Sonkawade³

et al. 2012

Nuclear Instruments and Methods in Physics Research Section B:

132

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Section: Uv Visible Spectroscopysupporting

confidence: 83%

Effect of gamma irradiation on the properties of plastic bottle sheet

Kumar

Ali

Sonkawade³

et al. 2012

Nuclear Instruments and Methods in Physics Research Section B:

132

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“…Polycarbonate (PC) is a polymer widely used in optical, medical, electronic and spatial applications, and for the preparation of nanotubes and nanowires [1][2][3][4][5][6]. Its high impact resistance makes it an important component in many devices, such as smartphones, tablets, computers.…”

Section: Introductionmentioning

confidence: 99%

UV Aging Effects on Polycarbonate Properties

Redjala

Hocine

Ferhoum

et al. 2020

J Fail. Anal. and Preven.

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This work deals with the effects of ultraviolet (UV) aging on polycarbonate (PC) properties. Thus, a PC was subjected to accelerated UV radiation with a wavelength range from 200 to 280 nm, at different times. Induced changes in the material were studied by UV-visible spectrophotometry, Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction. The material surface was analyzed by optical microscopy (OM) and scanning electron microscopy (SEM). Microhardness and uniaxial tension tests were performed on the aged and no-aged materials. It appeared that the studied PC turns yellow with UV aging time, in agreement with UV-visible spectrophotometry results that highlighted a loss in transparency of the aged material. The microhardness measurements showed that PC samples were entirely affected by UV radiations. In addition, the material performances in uniaxial tension dropped with UV aging. The decrease in PC mechanical properties was related to the rupture of the most vulnerable bonds, revealed by FTIR analyses, and to superficial cracks showed by OM and SEM micrographics.

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“…As a result, irradiation of polymers his shown great potentialin many fields such as microelectronics, biomedical, device technology nano-materials and materials science [10]. Literature survey indicates that the effects of gamma radiation on Lexan polycarbonate are being extensively studied [11]. It was further observed that there was a substantial chemical and thermal modification in the Lexan polycarbonate sample, such as breaking of C-O single bond and formation of phenolic bond and gradual decrease in the glass transition temperature, with the increase in ion fluence of 100 MeV silicon ions [12].…”

Section: Fig(1) Chemical Structure For Lexan [1]mentioning

confidence: 99%

UV-radiation Dose Assessment for Lexan Track Detector by Using of UV-visible and FTIR Spectroscopy Techniques

Al-Jobouri¹,

Taha²

2015

JNUS

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In the present work, studies the effect UV-radiation dose(1 J/cm²-360 J/cm²) with power 15 W to Lexan track detector thickness175 µm. Absorbance-A was measured at wavelength 300 nm and 305 nm by using UV-visiblespectroscopy and measure the transmission percent-T% and deviation at the wave number-w 940cm-1 by using Fourier infrared-FTIR spectroscopy. The relationship between the radiation dose of the UV-radiation (J/cm²) and the absorbance-Aat wavelength 300 nm and 305 nm and the wave number-w 940 cm-1 was calculate as a polynomial relation .The present study show that there is a possibility to use the detector Lexan to assessment doses of exposure to UV-radiation in the medical and environmental fields .

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Modification of optical properties of polycarbonate by gamma irradiation

Cited by 24 publications

References 1 publication

Effect of gamma irradiation on the properties of plastic bottle sheet

Effect of gamma irradiation on the properties of plastic bottle sheet

UV Aging Effects on Polycarbonate Properties

UV-radiation Dose Assessment for Lexan Track Detector by Using of UV-visible and FTIR Spectroscopy Techniques

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