A study of the effects of gamma irradiation on the structural and mechanical properties of polyvinyl butyral film

Mohammadian-Kohol, M.; Nasrabadi, M.N.; Navarchian, Amir H.; Jabbari, Iraj; Seyedhabashi, M.R.

doi:10.1016/j.radphyschem.2018.07.014

Cited by 13 publications

(7 citation statements)

References 18 publications

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“…PVB-AVE-6% and PVB NMs exhibit the same characteristic peaks near 3415 and 2868 cm −1 , which were ascribed to the stretching vibrations of –OH and the asymmetric stretching vibrations of –CH 3 , respectively. The bands at 1734 and 113 cm −1 correspond to -C-O stretching vibrations and symmetric stretching vibrations [ 41 ]. In addition, the characteristic peaks near 1608, 1513, and 1267 cm −1 were basically the same, while the characteristic peaks at 1608 and 1513 cm −1 were attributed to the stretching vibration superposition of C O and the benzene ring (C C), respectively.…”

Section: Resultsmentioning

confidence: 99%

Electrospun PVB/AVE NMs as mask filter layer for win-win effects of filtration and antibacterial activity

Lou

Wei

et al. 2023

Journal of Membrane Science

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Section: Resultsmentioning

confidence: 99%

Electrospun PVB/AVE NMs as mask filter layer for win-win effects of filtration and antibacterial activity

Lou

Wei

et al. 2023

Journal of Membrane Science

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“…In most cases, the polymers discussed can also tolerate moderate doses between 1 and 10 kGy (0.1 and 1 Mrad) with little to no consequence . Moreover, research performing a study of the effects of γ irradiation on the structural and mechanical properties of polyvinyl butyral (PVB) films declares the changes in the structure and nature of the polymer appeared at radiation doses of some tens of kGy, which enormously exceeds the intended level of radiation doses . The radiation resistance of the Bi 2 O 3 nanoparticles or the attenuation of radiation using them with the effect of dispersion in the matrix was studied and represents the basic characteristics …”

Section: Introductionmentioning

confidence: 99%

“…30 Moreover, research performing a study of the effects of γ irradiation on the structural and mechanical properties of polyvinyl butyral (PVB) films declares the changes in the structure and nature of the polymer appeared at radiation doses of some tens of kGy, which enormously exceeds the intended level of radiation doses. 31 The radiation resistance of the Bi 2 O 3 nanoparticles or the attenuation of radiation using them with the effect of dispersion in the matrix was studied and represents the basic characteristics. 32 Based on previous experience, a PVB polymer soluble only in ethanol (technical alcohol) was selected for experimentation.…”

Section: ■ Introductionmentioning

confidence: 99%

Electrospun Polyvinyl Butyral Nanofibers Loaded with Bismuth Oxide Nanoparticles for X-ray Shielding

Košťáková

Kozlovska

Benediková

et al. 2023

ACS Appl. Nano Mater.

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The combination of electrospun nanofibers and nanoparticles is opening up potential in the field of nanocomposite materials. This paper presents a composite electrospun nanofibrous material for X-ray shielding purposes consisting of a polyvinyl butyral polymer matrix and bismuth oxide nanoparticles. The organic−inorganic composite nanofibers considered in this paper, produced via the ex situ approach, attained a high content of nanoparticles of up to 95 wt %. The high content of nanoparticles inside the composite nanofibers was acquired via the application of the highly productive needleless electrospinning method. The resulting material is flexible and has a high drape and good air and steam permeability. The content of particles in the nanofibers was proved by the thermogravimetric analysis, and the homogeneous distribution of particles inside the nanofibers and within a whole nanofibrous layer was demonstrated via energy dispersive spectroscopy-scanning electron microscopy. In addition, samples of the composite electrospun nanofibers were tested for cytotoxicity, which revealed that the nanofibers were cytocompatible in all concentrations. The radiation attenuation properties of the samples were investigated via X-ray and γ-ray spectral measurements at a narrow beam geometry. The principal experimentally determined quantity for the tested samples was X-and γ-ray attenuation for the considerable energies of the spectra. The mass attenuation coefficients were calculated for the final composite electrospun material, which was supplemented by a composite nanofibrous material covering layer. With respect to photon energies higher than 40 keV, the attenuation coefficients were observed to be comparable with a commercially produced anti-radiation vest, which had a similar mass density as both the final composite electrospun material and the covering layer. Monte Carlo (MC) simulations in the FLUKA code were conducted to determine the photon attenuation for the respective energies in the tested samples. The results were compared to those determined experimentally, and the MC model was verified.

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“…However, PE only contains CC and CH bonds, which makes it difficult to introduce a DOPO derivative into the molecular skeleton of PE. Compared with chemical modification, irradiation grafting [ 19‐24 ] is an effective strategy for activating PE, because the grafting copolymerization can be initiated at a moderate temperature even at room temperature. Hence, it has become more feasible to introduce DOPO derivatives into the activated PE molecular skeleton.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide derivative grafted polyethylene films for improving the flame retardant and anti‐dripping properties

Xie

Leng

Dong

et al. 2020

Polymer Engineering & Sci

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Two novel flame retardant and anti-dripping PE films were successfully synthesized in three steps. PEg -GMA film was first prepared by simultaneous electron beam irradiation to graft glycidyl methacrylate (GMA) onto PE film. 4,4 0-[1,4-phenyl-bis(9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-yl) dimethyneimino)]diphenol (DOPO-t) and 4,4 0-[1,3-phenyl-bis (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-yl)dimethyneimino)]diphenol (DOPO-m) were then fabricated via a one-pot method. Finally, two DOPO derivative functionalized PE films were obtained through the ring opening reactions of PEg -GMA film with DOPO-t and DOPO-m, respectively. Combustion properties, flame retardancy, thermal performance, and thermal shrinkage of these films were evaluated. Compared with pure PE film, the burning rate of antidripping DOPO-t/DOPO-m functionalized PE films was reduced by 13.2% and 50.0%, and the limiting oxygen index value climbed to 18.5 and 19.5, respectively. The residual chars from DOPO-t/DOPO-m functionalized PE films at 700 C were increased, and the shrinkage ratio decreased remarkably, which could effectively prevent the spread of fire. We also discussed the effect of structural difference between DOPO-t and DOPO-m on the above properties and the flame retardant mechanism of two DOPO derivative functionalized PE films preliminarily. This work provides a method for introducing DOPO derivatives into PE molecules to improve their flame retardancy and anti-dripping properties.

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A study of the effects of gamma irradiation on the structural and mechanical properties of polyvinyl butyral film

Cited by 13 publications

References 18 publications

Electrospun PVB/AVE NMs as mask filter layer for win-win effects of filtration and antibacterial activity

Electrospun PVB/AVE NMs as mask filter layer for win-win effects of filtration and antibacterial activity

Electrospun Polyvinyl Butyral Nanofibers Loaded with Bismuth Oxide Nanoparticles for X-ray Shielding

Synthesis of 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide derivative grafted polyethylene films for improving the flame retardant and anti‐dripping properties

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