Ionic liquids influence on the surface properties of electron beam irradiated wood

Glass fibres reinforced polyester composites degradation monitoring by surface analysis

“…The novelty is the using of photographic image analysis, instead of a photocolorimeter. In our previous papers we have demonstrated that this technique offers good relative results on UV-irradiated wood, in agreement with experimental data obtained by other analysis methods, such as FTIR spectroscopy [5,6].…”

“…Delamination is also sustained by the values of the average roughness of the composite, determined by the image analysis method, as described in our previous work [5,6], as well as from the values of the friction coefficient, both presented in Table 3.…”

“…The image analysis method has been successfully applied in our previous studies in order to assess the roughness profile of wood materials, UV or electron beam degradation of wood veneers [5,6] as well as the adsorption kinetic and equilibrium of different types of dyes on poly(vinyl alcohol) cryogels [7,8]. Also, degradation of synthetic polymers or composites has been studied by CIELab method, based on chromophoric group formation during the degrading process that leads to materials yellowing or browning [9a].…”

Structural changes during 3D printing of bioderived and synthetic thermoplastic materials

“…The average roughness (Ra) and skewness (Rsk) values for the filaments and prints cross sections, expressed in μm, computed with the help of the ImageJ software (Roughness calculation plugin, are depicted in Table . The roughness values were directly computed/displayed by the software on the preloading of each micrograph image into the software.…”

Changes in mechanical and chemical wood properties by electron beam irradiation

“…Irradiation of lignin (MWL) does not change the aromatic hydroxyl groups and conjugated carbonyls [10]. To protect wood against the negative effects of electron beam irradiation, ionic liquids present one possible opportunity to inhibit the formation of free radicals [11]. Fischer and Goldberg [10] claimed that condensation reactions between the aromatic nucleus and the side chain occur during low irradiation doses.…”