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Investigation on Water Retention Properties of Boric Acid Doped Textile Surfaces

100%
Akarslan F., Altinay Ö.
Acta Physica Polonica A
|
2015
|
vol. 128
|
issue 2B
B-405-B-406
EN
During the summer periods, the excellent absorbency and high water retention capacity of textile materials is important to eliminate the disturbing effect of perspiration. In this study, water retention properties of boric acid-doped textile surfaces has been investigated. For this purposes different proportions of boric acid were applied to 100% cotton fabric by means of impregnation method. Then, water retention was tested according to DIN 53923 standard, as a percentage of the water retention rate. The results were analyzed.
2
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Investigation on Fire Retardancy Properties of Boric Acid Doped Textile Materials

100%
Akarslan F.
Acta Physica Polonica A
|
2015
|
vol. 128
|
issue 2B
B-403-B-404
EN
One way to better protect combustible materials against initiating fires is the use of flame retardants. Every day we come across new innovations particularly in the areas of flame retardant fibres and chemicals. This study investigates fire retardancy effect of boron on two cotton fabrics. Boron can soluble in water, colourless and capable of melting by heat. Boron is highly resistant to fire due to the melting temperature of 2300°C. Because of this property, it is used as a flame-retardant material. The objective of this study was to examine the feasibility of imparting flame-retarding functions to different textile materials through the application of boric acid with impregnation methods. Different concentrations of boric acid nanoparticles were examined to optimize the flame-retarding functions. Eventually, 45° inclined combustion test are applied to the samples and examined the changes in strength of the samples. In this research; the aim is to bring in flame-retarding functions to different fabrics.
3
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Survey of Industrial Applications of Conducting Polymers

80%
Roth S., Graupner W., Mcneillis P.
Acta Physica Polonica A
|
1995
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vol. 87
|
issue 4-5
699-711
EN
Seventeen years after the first publication of doped polyacetylene we have already seen the appearance and disappearance of commercial products based on conducting polymers. In the present report we want to summarize the status quo in this field paying attention to existing products, laboratory demonstration set-ups and promising concepts.
4
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Seismic Risk Assessment of Historical Eastern Turkish Buildings by Finite Element Analysis

80%
Çarhoglu A., Usta P., Korkmaz K.
Acta Physica Polonica A
|
2015
|
vol. 127
|
issue 4
1083-1085
EN
Traditional masonry buildings, commonly built in Turkey, are one of the important items of cultural heritage. There are many important historical buildings in the east part of Turkey. One of the important locations in east of Turkey is Kilis. In this study, Kilis houses of original types in terms of architectural and functionality, were examined regarding the effects of an earthquake. Therefore, five traditional Kilis houses were examined and the buildings were modeled using SAP2000 finite element software. The models were investigated with different materials such as stone, brick, pumice and cellular concrete material. Time history analyses were performed for the modeled buildings, with three different ground motion records. Displacement values, compressive stresses, tensile stresses, shear stresses and base shear values, obtained from the analysis results were examined in detail. When the results of the study were evaluated, earthquake resistance of buildings was was found to be high and the displacements values were not at a significant level.
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