journal article·2026-01-23Open access

Tailoring thermal properties and fiber morphology in PVA nanofibers via addition of hydrothermally synthesized strontium oxide nanoparticles

Mediha Kök, Cengiz Tatar, Ecem Özen Öner

Nanotechnology Reviews· Volume 15· Issue 1

Abstract

Abstract In this work, poly(vinyl alcohol) (PVA) nanofiber composites reinforced with hydrothermally synthesized strontium oxide (SrO) nanoparticles were fabricated via electrospinning to obtain thermally enhanced and functionally adjustable nanofibrous structures. The structural and interfacial interactions were examined by FTIR and XRD, revealing coordination bonding between Sr 2+ ions and PVA hydroxyl groups, accompanied by partial suppression of PVA crystallinity and the emergence of crystalline SrO phases. Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) analyses demonstrated a notable enhancement in thermal stability, attributed to the barrier effect of SrO nanoparticles restricting polymer chain mobility. Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) observations showed a progressive reduction in fiber diameter and increased surface roughness with increasing SrO loading, while excessive filler contents led to nanoparticle agglomeration. PVA/SrO composites containing 5–10 wt% SrO exhibited an optimal balance between morphological continuity and thermal performance.
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Research context

OpenAlex topics: Electrospun Nanofibers in Biomedical Applications · Polymer Nanocomposite Synthesis and Irradiation · Advanced Sensor and Energy Harvesting Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics, Faculty of Science , Firat University , Elazığ , Türkiye

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