Radiation shielding properties of poly (methyl methacrylate) / colemanite composite for the use in mixed irradiation fields of neutrons and gamma rays

Bel, Tayfun; Arslan, Cüneyt; Baydoğan, Nilgün

doi:10.1016/j.matchemphys.2018.09.014

Cited by 72 publications

(34 citation statements)

References 40 publications

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“…It is noted that the physical performance relates to the structural characteristics of PMMA and its performance can be changed with the formation of PMMA/Colemanite composite. 11,[43][44][45][46][47][48][49][50][51][52][53] Investigations of the matrix base PMMA used in this…”

Section: Resultsmentioning

confidence: 99%

“…GNPs at a concentration of 2 wt% have emerged as a promising nanofiller for PMMA based nanocomposites due to their remarkable mechanical properties, and optimal production parameters have been established by the application of NDT. It is noted that the physical performance relates to the structural characteristics of PMMA and its performance can be changed with the formation of PMMA/Colemanite composite 11,43–53 . Investigations of the matrix base PMMA used in this research have been carried out in space research at the International Space Station 11,50,51 .…”

Section: Resultsmentioning

confidence: 99%

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Investigation of the elastic properties of poly (methyl methacrylate) reinforced with graphene nanoplatelets

Muhammettursun

Bel

Kocacinar

et al. 2021

J of Applied Polymer Sci

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The technique for synthesis of poly (methyl methacrylate) (PMMA) by atom transfer radical polymerization has been strengthened by using graphene nanoplatelets (GNPs) to enhance the elastic properties of the polymer. In order to improve practical, economical and mechanical performance, the requirements for effective implementation of production control as a smart bulk polymer nanocomposite were determined for cost-effective bulk production. Threedimensional inspection (using an ultrasound interrogation method for the whole volume under test) confirmed the synthesis of the nanocomposite to be free of agglomeration and bubbles. As a result of this elimination of defects, an enhancement in compressive strength of 42.7% was achieved and the Rockwell hardness was increased by 19.9% through the addition of GNPs at 2 wt% by mass. The deformation and mechanical failure properties have been characterized in the mechanical enhancement of the polymer nanocomposite. Elastic parameters determined using ultrasound testing identified that changes in the structural features following the addition of these GNPs were uniquely connected to the enhancements in these elastic parameters (such as Young's modulus, Poisson's ratio, shear modulus, and microhardness) of the PMMA/GNPs nanocomposite.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Investigation of the elastic properties of poly (methyl methacrylate) reinforced with graphene nanoplatelets

Muhammettursun

Bel

Kocacinar

et al. 2021

J of Applied Polymer Sci

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“…The specific effects of graphene‐PMMA polymerization conditions have been monitored by gamma transmission method. Because the use of copper atoms at in‐situ polymerization method have improved the gamma‐ray absorption in the final polymer nanocomposite 38 . The copper content supported the gamma absorption has not been varied in the current samples to obtain the same dispersion condition in the final polymer nanocomposite.…”

Section: Resultsmentioning

confidence: 99%

Improvement of thermal stability and gamma‐ray absorption in microwave absorbable poly(methyl methacrylate)/graphene nanoplatelets nanocomposite

Bel

Muhammettursun

Kocacinar

et al. 2021

J of Applied Polymer Sci

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The graphene nanofiller (2 wt%) was dispersed in poly(methyl methacrylate) by in situ polymerization method. The optimum high frequency (microwave) absorption was evaluated at X‐band due to changes in the scattering parameters (determined by using a vector network analyzer). The slight improvement has been attained in gamma attenuation coefficient of the polymer nanocomposite by using gamma transmission technique. The addition of graphene nanoplatelets (2 wt%) resulted in a thermal improvement from 196.73 to 243.00°C (with 5% weight loss) in TGA analysis. The graphene nanoplatelets provided an optimum decrease in scattering of the microwaves due to the elimination of the defects and the prevention of the agglomeration of the graphene nanoplates. The improvement of microwave absorption (between 8 and 12 GHz) suggested that the nanocomposite was a suitable candidate as a microwave absorbing material. This multipurpose nanocomposite has provided thermal stability and it has ensured the optimum gamma‐ray and microwave absorption depending on the development of the structural properties. The development of these physical characteristics has enabled to improve the electrical conductivity as a result of the progress in the structural properties.

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“…Four different colemanite Ca 2 B 6 O 11 ·5H 2 O (CMT) concentration levels (such as 5, 15, 30, and 40 weight percent) were examined to investigate the radiation protective shielding properties of poly(methyl methacrylate)/colemanite (PMMA/CMT) composite. Colemanite reinforcement of poly(methyl methacrylate) increased the radiation shielding capacity by 11.1% for gamma photons of Cs-137 radioisotope (Bel et al 2018 ). By blending epoxy resin with different weight percent of tungsten powder, tungsten/epoxy composites were prepared and investigated by using two different activities of Co-60 source showing that with the increment of tungsten loading, the shielding property of composites increased (Chang et al 2015 ).…”

Section: Polymer Composites For Gamma-radiation Shieldingmentioning

confidence: 99%

Polymeric composite materials for radiation shielding: a review

et al. 2021

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The rising use of radioactive elements is increasing radioactive pollution and calling for advanced materials to protect individuals. For instance, polymers are promising due to their mechanical, electrical, thermal, and multifunctional properties. Moreover, composites made of polymers and high atomic number fillers should allow to obtain material with low-weight, good flexibility, and good processability. Here we review the synthesis of polymer materials for radiation protection, with focus on the role of the nanofillers. We discuss the effectivness of polymeric materials for the absorption of fast neutrons. We also present the recycling of polymers into composites.

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Radiation shielding properties of poly (methyl methacrylate) / colemanite composite for the use in mixed irradiation fields of neutrons and gamma rays

Cited by 72 publications

References 40 publications

Investigation of the elastic properties of poly (methyl methacrylate) reinforced with graphene nanoplatelets

Investigation of the elastic properties of poly (methyl methacrylate) reinforced with graphene nanoplatelets

Improvement of thermal stability and gamma‐ray absorption in microwave absorbable poly(methyl methacrylate)/graphene nanoplatelets nanocomposite

Polymeric composite materials for radiation shielding: a review

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