PAPERmaking! Vol10 Nr2 2024

A. Kübra Yontar et al.

Inorganic Chemistry Communications 159 (2024) 111865

Fig. 4. SEM images of all nanosilver modified and non-modified MDF samples.

physical abrasion, scratching and impact, variety of finishes, and resis­ tance to stains and chemicals. All performance tests were carried out in accordance with TSE EN 438 – 2 standard. This standard is used to evaluate the performance of coating materials and to determine the compliance of products with quality standards. In this way, it is aimed to offer reliable and quality coating materials to consumers. Three per­ formance tests were performed for antibacterial MDF surfaces modified with AgNP. The first of these is the stain resistance test. The stain tests of MDF products used in living areas were carried out by dripping the substances that are used extensively in daily life and cause stains. Sub­ stances are cleaned from the surface by washing after being kept on the surface for one day in contact with oxygen and in environments where

contact with oxygen is cut off. It is checked whether there is any trace, swelling, color change on the surface. The substances used in the test and leaving significant stains are as follows; acetone, vinegar, hydrogen peroxide, trioxidant, coffee and bleach. The second test is the wear resistance measurement. For the wear test, a 50 x 50 mm MDF sample is cut. Abrasion test is done by rotating the test specimen with cylindrical wheels covered with sandpaper and applied load. The wheels cause an annular wear on the surface of the sample. The test is continued until there is a certain amount of wear and the results are given over the number of revolutions. The first wear point occurs when the pattern in the sample is clearly visible or a solid color appears so that 3/4 of the substrate is visible. When approximately 95 % wear occurs on

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