Akademik Veri Yönetim Sistemi
XVIII International Clay Conference, Dublin, İrlanda, 13 - 18 Temmuz 2025, ss.330, (Özet Bildiri)
Pyrophyllite, typically found in association with metamorphic rocks and hydrothermal veins, is widely utilized in
global industries due to its low cost, favorable mechanical properties, and excellent thermal resistance. It plays a
significant role in the production of refractories, heat-resistant ceramics, paints, paper, fiberglass, cosmetics,
plastics, rubber, fertilizers, and insecticides.
Detailed mineralogical, crystallographic and geochemical studies based on scanning electron microscopy (SEM),
energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD) and X-ray fluorescence (XRF) analyses on samples
from various locations of the Pütürge region of Malatya, where hosts the majority of pyrophyllite deposits in
Türkiye, revealed that the samples include pyrophyllite, quartz, muscovite, kaolinite and illite with varying
percentages of iron, magnesium and titanium. Based on their pyrophyllite content and elemental suitability for
industrial applications, the samples were classified into low, medium, and high-quality groups.
In an effort to develop eco-friendly insulation materials, fine-grained high-quality pyrophyllite powders with
uniform particle sizes were impregnated into natural fabrics, namely jute, cotton, linen and wool, and thermal
and mechanical performances of the resulting composites were examined. The fabric samples were mercerized in
an alkaline solution to enhance surface reactivity and to promote better interaction with the binder solution.
Using the dip-coating method, the fabrics were immersed in a pyrophyllite-rich binder solution and subsequently
subjected to a short-time thermal treatment.
Post-treatment analyses revealed that the pyrophyllite-impregnated fabrics exhibited a significant loss of
elasticity, observable darkening in color, and minor fiber degradation due to chemical abrasion. However,
bonding between pyrophyllite particles and the fabric fibers substantially enhanced the thermal resistance and
flame retardancy of the fabrics. These findings indicate that pyrophyllite-impregnated natural fiber fabrics are
better suited for applications in eco-friendly thermal insulation panel production rather than for use in the textile
or apparel industries.