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Impact of foaming agent and nanoparticle fillers on the properties of irradiated rubber

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Published/Copyright: December 17, 2020
Radiochimica Acta
From the journal Radiochimica Acta Volume 109 Issue 2

Abstract

A sponge rubber nanocomposite based on styrene–butadiene rubber (SBR)/nanoclay (montmorillonite, MMT) or nano-calcium carbonate (CaCO3) fillers with various foaming agent contents was produced by a simple technique, roll milling. The nanoparticles were examined by different techniques, such as X-ray fluorescence (XRF), X-ray diffraction (XRD), energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), and Fourier-transform infrared (FT–IR). The sponge rubber nanocomposites were characterized by scanning electron microscopy (SEM) image analysis before and after exposures to radiation doses, as well as by the XRD patterns for the unirradiated samples. The different properties of the obtained nanocomposites, including their foaming degree, tensile strength, elongation at break, and thermal conductivity, were also investigated. The foam composites containing nano-CaCO3 possessed the best cell and crosslinking densities and mechanical properties among the other composites, while its foaming degree was the lowest. The results indicated that the thermal conductivity was reduced by increasing the foaming agent concentration. However, it increased as the radiation dose increased, and the optimum radiation dose was obtained at 75 kGy. The foam containing MMT exhibited an intermediate behavior while high thermal conductivity was recorded for the foam containing the CaCO3 nanoparticles.

Keywords: clay; eggshell; irradiated rubber; mechanical properties; thermal conductivity
Corresponding author: Hanan M. Eyssa, Radiation Chemistry Department, National Centre for Radiation Research and Technology (NCRRT), Egyptian Atomic energy Authority, P. O. Box 29, Nasr City, Cairo, Egypt, E-mail:

  1. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2020-03-06
Accepted: 2020-11-02
Published Online: 2020-12-17
Published in Print: 2021-02-23

© 2020 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Original Papers
  3. Sorption and surface complexation modeling of 137Cs on Fe(II)-montmorillonite clay mineral relevant to nuclear waste disposal
  4. Kinetics and adsorption equilibrium of some radionuclides on polyaniline/SiO2 composite
  5. Adsorption from liquid metals: an approach for recovery of radionuclides from irradiated targets
  6. Radioiodination and biological evaluation of Cimetidine as a new highly selective radiotracer for peptic ulcer disorder detection
  7. Astatine-211 labelled a small molecule peptide: specific cell killing in vitro and targeted therapy in a nude-mouse model
  8. Impact of foaming agent and nanoparticle fillers on the properties of irradiated rubber
  9. Development of SiO2 based doped with LiF, Cr2O3, CoO4 and B2O3 glasses for gamma and fast neutron shielding
https://doi.org/10.1515/ract-2020-0015
Keywords for this article
clay; eggshell; irradiated rubber; mechanical properties; thermal conductivity

Articles in the same Issue

  1. Frontmatter
  2. Original Papers
  3. Sorption and surface complexation modeling of 137Cs on Fe(II)-montmorillonite clay mineral relevant to nuclear waste disposal
  4. Kinetics and adsorption equilibrium of some radionuclides on polyaniline/SiO2 composite
  5. Adsorption from liquid metals: an approach for recovery of radionuclides from irradiated targets
  6. Radioiodination and biological evaluation of Cimetidine as a new highly selective radiotracer for peptic ulcer disorder detection
  7. Astatine-211 labelled a small molecule peptide: specific cell killing in vitro and targeted therapy in a nude-mouse model
  8. Impact of foaming agent and nanoparticle fillers on the properties of irradiated rubber
  9. Development of SiO2 based doped with LiF, Cr2O3, CoO4 and B2O3 glasses for gamma and fast neutron shielding
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