A. Kübra Yontar et al.
Inorganic Chemistry Communications 159 (2024) 111865
Fig. 3. Results of characterization analyzes, (A) UV – Vis spectrophotometer, (B) Particle Size Measurement, and (C) X-Ray Diffraction Analysis.
the melamine mixture into a glass container, A4 size MDF coating papers were slowly placed in the bath. The solution was distributed over the entire surface with the help of a brush so that the paper could absorb the solution homogeneously. After the paper had absorbed all the solution, it was placed in the second bath. In the second bath, a chemical solution consisting of binders and hardeners of ÇAMSAN company ’ s own recipe was used. After the second bath, the papers were placed on the MDF surfaces and compressed at 190 ◦ C in a hot press. The MDFs were dried to ensure that the paper and all components adhere to the surface completely. After the drying process, the final antibacterial effective MDF product was created. A total of 4 MDF samples were produced together with the control sample named R. Sample A is 1 %, sample B is 3 % and sample C is 5 % nano silver modified surfaces. 2.4. Characterizations Particle size measurement analysis was performed to calculate the average sizes of nano silvers produced by green synthesis with Master sizer 3000 laser technology (ISO-13320). By adjusting the particle size distribution histogram to the log-normal distribution function, the average particle size for silver nanoparticles has been calculated which is represented as in Eq(1) [32];
deviation. The wavelength range for Ag-NPs is 300 to 700 nm, and this was detected by UV – Vis spectrophotometer analysis performed 48 h after biosynthesis (Perkin Elmer, Lambda 25). In the range of 10 ◦ ≤ 2 θ ≥ 80 ◦ at room temperature, XRD was performed at a rate of 2 ◦ /min using a Rigaku Smart Lab CuK α radiation monochromatic filter. XRD analyses of silver and plant extract added films and only plant added films were carried out separately and the presence and crystallite sizes of silver nanoparticles were investigated. Debye-Scherer ’ s equation(1) was used to calculate the crystallite size and microstrain of silver nanoparticles. Debye-Scherer ’ s equation is; D = Kλ / β cos θ (2) where D is the Crystallites size (nm), λ the X-ray wavelength (k = 0.1541 nm), K the so-called shape or geometry factor which usually takes a value of about 0.9 (Scherer constant), β the full width at half maximum ( FWHM ) of diffraction peak and ‘‘ θ’’ the diffraction angle. MDF surface microstructure and EDS chemical mapping were examined using an 80 mm 2 X-MAX detector and an EDS attachment on a JEOL 7001F Field Emission (FE) Scanning Electron Microscope (SEM). 2.5. Performance tests MDF is the process of coating the surface of the boards under high pressure and heat by impregnating and drying decorative papers in glued baths. They are available in various thicknesses and features and are often used in areas such as furniture, interior design, countertops, floor coverings, wall panels. The key features of HPL are: resistance to
(
)
ln 2
D D 0
(
)
1 √2 πσ D
f ( D )= (1) where D corresponds to average particle size and σ D is the standard exp [ 2 σ 2 ]
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