In this study, glass and glass fibres were treated to dry interfacial treatment by the use of plasma technology. It has been presented that the optimum parameters for the best wettability of the samples at the time of plasma generation were an oxygen atmosphere, 0.1 Torr system pressure, 100 W discharge power and 3 min discharge time. Also, the surface resistance rate and dielectric property were improved.

In this study, which was performed to identify a degradation mechanism in macromolecular insulating material, the contact angle, surface potential decay, surface resistance rate and XPS analysis were compared after exposure of fibre-glass-reinforced polymer (FRP) laminate to plasma discharge.In the case of the contact angle, the surface of the untreated specimen showed weak hydrophobicity at 73• . However, the contact angle was decreased to 20• in the plasma-treated specimen. In the case of chemical changes arising from plasma treatment, carboxyl radicals were generated mainly in the plasmatreated surface, which was rapidly changed to a hydrophilic surface. In the corona potential decay study to determine the electrical changes of the surface, positive charges were decreased rapidly when compared with negative charges, leading to a negative surface for the untreated specimen. However, in the case of the hydrophilic surface, a lot of carboxyl radicals (-COO) acting as positive polarity were generated, resulting in a positive surface. Owing to such a positive surface, the charges of applied negative polarity were decreased rapidly.

The fabrication of b -alumina films as thermoelectric materials was investigated by thermal plasma processing based on the forced constrictive-type reactor. Under both atmospheric and low pressures, b -alumina films were synthesized successfully from a mixed powder of a-Al 2 O 3 , Na 2 CO 3 and MgO. The jet powder and substrate position strongly affect the properties of plasma-processed b -alumina, which were found to be correlated with jet temperature. For both pressures, the films show good thermoelectric properties.

A current standard exist only on the surface tension in the current domestic wetting agent technology standards, so it is difficult to the performance evaluation of the wetting agent through the standard. So this study presents the optimized performance evaluation methods by scale model experimental equipment in order to present techniques for performance evaluation of wetting agents. The purpose of this study is to investigate validity of experimental results of the self-designed scale model experiment equipment by a comparative analysis of experimental results of the NFPA 18 experiment and the experiment using the self-designed scale model experiment equipment. As a result of a comparative analysis of experimental results of the NFPA 18 experiment that evaluate only the permeation performance on the contton and the experiment using the self-designed scale model experiment equipment that evaluate the permeation performance and fire extinguishing performance on wood flour, the discrimination of the permeation performance was confirmed in both the NFPA 18 experiment and the self-designed scale model experiment equipment. And a result of self-designed experiment equipment have clear discriminatory more than NFPA 18 by internal temperature measurement using the thermocouples.

In this study, the extinguishing performance evaluation of wetting agent for wood crib was conducted by using a scale model equipment that we designed. To confirm the optimal conditions of the experiment, a test was changed amount of fire extinguishing water and the number of timber. As a result, the discrimination of the fire extinguishing performance was seen only when 20 pieces of wood and the extinguishing water of 100 mL were used. After evaluating the extinguishing performance of domestic and foreign wetting extinguishing agents under these conditions, a reignition was occurred in only when we used water. In addition, the discrimination of extinguishing performance was seen through the temperature distribution according to the time of watering. Based on the results of this experiment, this study is expected to be able to use as a basis on presenting a method of optimized performance evaluation of wetting extinguishing agent.