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The efficiency of a plasma-aided finishing process e.g., surface impregnation can be predicted only by setting two basic parameters of the real wood porous surface and the actual impregnating solution — surface free energy and surface tension. Successful finishing can be expected if the process efficiency parameter take a positive value after a specified aging time of the plasma-chemical surface activation...
Plasma surface treatments show distinct advantages, because they are able to modify the surface properties of inert materials, sometimes with environment friendly devices. On textile surfaces, three main effects can be obtained depending on the treatment conditions: the cleaning effect, the increase of microroughness and the production of radicals to obtain hydrophilic surfaces. The advantage of such...
Plasma-aided technique can be used to improve the surface impregnation: materials with low surface free energy were subjected to active plasma pre-treatment in order to increase the surface free energy. The higher the surface free energy of the solid substrate is, the better the capillary impregnation. In general, the following efficiency criterion was found: “Plasma-aided impregnation of a material...
Surface energy comes into play in porous media impregnating phenomena. A plasma-aided technique can be used to enhance the surface impregnation: materials with low surface free energy were subjected to active plasma pre-treatment in order to increase the surface free energy. The higher the surface free energy of the solid substrate is, the better the impregnation. In general, the following efficiency...
Plasma-aided technique can be used to aid surface impregnation: materials with low surface free energy were subjected to activate plasma pre-treatment to increase the surface free energy. The higher the surface free energy of the solid substrate is, the better the impregnation. In general, the following efficiency criterion was found: “Plasma-aided impregnation of a material will be more successful...
The plasma-aided flame retardation of wood and wooden products has been developed as a result of plasma-aided process of capillary impregnation. The plasma-chemical surface pre-treatment substantially alters its electrical, chemical and capillary activity, thus improving some impregnation process basic characteristics, such as penetration depth, solution spreading and adsorption speed, adsorbed solution...
Simultaneous Thermal Analysis (STA) unifies the application of thermogravimetry (TGA) and differential scanning calorimetry (DSC) to one and the same sample in a single instrument, under perfectly identical conditions. The results obtained by STA were used in a new way, to reveal the influence of plasma-aided flame retardancy on thermal behavior and flammability of wood. New integral criteria of thermal...
The flame retardation of wood and wooden products has been developed by creating new phosphor and nitrogen containing flame retardant for capillary impregnation improving some impregnation process basic characteristics, such as penetration depth, solution spreading and adsorption speed, adsorbed solution capacity. Simultaneous thermal analysis (STA) has been used to reveal the impact of this flame...
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