Structure and composition of the surface layer of Zr-containing fiberglass materials

Water diffusion in Zr‐containing fiberglass materials at room temperature

“…The calculated coefficient of water diffusion in calcined fiberglass materials is higher than the reported values of ~10 −17 cm 2 /s obtained at 23°C for silica glasses and comparable with that obtained for borosilicate glasses at 30°C (10 −13 –10 −15 cm 2 /s) or silica glasses at 80‐90°C . This difference is probably related to the structure of Zr‐containing glass fibers and the peculiarities of fiber preparation technique such as cooling rate from the melt …”

“…The specific surface area of the glass fibers is around 1 m 2 /g which is close to the geometrical surface of elementary fibers . The structure of Zr‐containing silicate fiberglass materials is described as a system of domains built of three‐dimensional network with six‐coordinated Zr atoms connected by 2‐4 SiO 4 tetrahedra, which are separated by the narrow “cavities” containing considerable amounts of OH groups . These materials are often used as the support for the catalyst preparation .…”

“…These materials are often used as the support for the catalyst preparation . It was shown that the most robust catalysts prepared on the basis of fiberglass materials are those with the active component located in the bulk of glass fibers at a depth of ~10 nm . The anchoring of active component was shown to proceed with participation of OH groups of a glass fiber .…”

“…[25][26][27] The structure of Zr-containing silicate fiberglass materials is described as a system of domains built of three-dimensional network with six-coordinated Zr atoms connected by 2-4 SiO 4 tetrahedra, which are separated by the narrow "cavities" containing considerable amounts of OH groups. 26,28,29 These materials are often used as the support for the catalyst preparation. 26 It was shown that the most robust catalysts prepared on the basis of fiberglass materials are those with the active component located in the bulk of glass fibers at a depth of ~10 nm.…”

Chemical Characterization of Soil Used as a Deposit for Waste Originating From the Manufacturing of Products Based on Fiberglass

“…Many analytical techniques may be used to determine the chemical composition and structure of glass fiber, including infrared spectroscopy, X‐ray photoelectron spectroscopy, nuclear magnetic resonance spectroscopy, and atomic emission spectroscopy by inductively coupled plasma (Glazneva et al., ).…”