Radiation Effects in Hybrid Polymer and Composites

A special issue of Journal of Composites Science (ISSN 2504-477X). This special issue belongs to the section "Polymer Composites".

Deadline for manuscript submissions: 31 October 2026 | Viewed by 664

Special Issue Editor


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Guest Editor
National Institute for Electrical Engineering, INCDIE ICPE-CA, Bucharest, Romania
Interests: radiation processing of polymers; characterization of polymer durability; antioxidants; evaluation degradation of polymer composites; polymer hybrids; radiation effects on solid materials
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Special Issue Information

Dear Colleagues,

High-energy exposure has profound consequences for the structural configuration of polymer hybrids. Starting from the fragmentation of macromolecules guided by bond energies, the interaction between various classes of filler and host polymers brings about several changes in material behavior. For their extended applications, the stability of hybrids as well as changes in the thermal and mechanical properties of this class of compounds have to be emphasized. Improvement in durability is key for items to be able to operate in the long term. For analysis of the mechanistic approach of polymer/filler interaction, starting from the pristine materials—which are the reference points—is encouraged. Consequently, foreseen applications have to be identified by means of the types and magnitudes of changes whose relevance is connected to radiation processing, ecological technologies involved in the production of new materials especially those with higher energetic resistance, recycling of polymer wastes, medical purposes of healthcare, development of education and academic knowledge, and the initiation of various studies, where radiation energy is used for attaining the improvement of hybrid behavior for opening of new ways for product characterization of durability, the identification of inner cooperation between hybrid components, and the interconnection of various ranges of expertise. High-energy exposure achieved with electron beams or gamma rays is a versatile procedure for material qualification by accelerated degradation and a pertinent route for the internal inspections to determine the contribution of hybrid components to the material sciences. The manuscripts in this issue are envisaged to become starting points for other investigations simultaneously propelled by the competing approaches of “classical” material assessments.

Dr. Traian Zaharescu
Guest Editor

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Keywords

  • hybrids
  • irradiation
  • stability
  • structural modifications
  • interaction
  • improved properties
  • mechanistic analysis
  • radiation processing

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Published Papers (1 paper)

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Research

21 pages, 2771 KB  
Article
EB Radiation Processing of HDPE/Rice Husk Ash Composites
by Maria Elizabeth Maués dos Santos, Traian Zaharescu, Júlio Harada, Dione Pereira de Castro and Leonardo Gondim de Andrade e Silva
J. Compos. Sci. 2025, 9(11), 601; https://doi.org/10.3390/jcs9110601 - 3 Nov 2025
Viewed by 534
Abstract
High-density polyethylene (HDPE) is a valuable material, but its application under certain operational conditions is limited by oxidation resistance. To mitigate this, rice husk ash (RHA), a silica-rich (~95%) byproduct, was incorporated as a reinforcing filler. This study evaluates the effect of electron [...] Read more.
High-density polyethylene (HDPE) is a valuable material, but its application under certain operational conditions is limited by oxidation resistance. To mitigate this, rice husk ash (RHA), a silica-rich (~95%) byproduct, was incorporated as a reinforcing filler. This study evaluates the effect of electron beam (EB) irradiation, at doses up to 100 kGy, on the properties of HDPE/RHA composites, focusing on mechanical performance and the polymer–filler interface. The results demonstrate that EB irradiation induces crosslinking and enhances interfacial interaction between the HDPE matrix and RHA filler. While the overall tensile strength of neat HDPE tended to decrease with irradiation dose (from 28.5 ± 1.2 MPa to 24.1 ± 1.5 MPa at 100 kGy), the optimization of dose and filler contents produced notable results: A maximum tensile strength of 29.0 ± 1.1 MPa was achieved in the composite containing 5 wt% RHA at 75 kGy. Furthermore, irradiation stabilized the material’s behavior, resolving the heterogeneous dispersion observed in non-irradiated samples with low RHA content. Regarding toughness, Izod’s impact resistance increased from 3.2 ± 0.2 kJ/m2 to 3.7 ± 0.3 kJ/m2 for the 10 wt% RHA composites irradiated at 50 kGy. Statistical analysis (ANOVA, p < 0.05) confirmed the significance of these changes. In conclusion, electron beam irradiation is an effective tool for optimizing the mechanical properties and performance uniformity of HDPE/RHA composites, making them promising candidates for applications requiring enhanced durability and consistency, such as food packaging. Full article
(This article belongs to the Special Issue Radiation Effects in Hybrid Polymer and Composites)
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