Yazar "Sancak, E." seçeneğine göre listele
Listeleniyor 1 - 2 / 2
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Effect of applied different surface modification processes with cellulose enzyme on properties of luffa fibres(Asian Publication Corporation, 2012) Merdan, Nigar; Sancak, E.; Koçak, Dilara; Yüksek, MetinAmong the natural fibres, luffa cylindrical fibres are the ones that are widely available throughout the world. Luffa fibres are known to have lignocellulosic fibre characteristics.Ligno cellulosic lignin content of fibers and other wastes of various chemicals to clean the surface processes. In this study, cellulase enzyme lignocellulosic-based fibers have the luffa fibers, except with the conventional methods are environmentally friendly and energy, water, power, time-saving microwave, ultrasonic energy surface modifications were made using different methods. The results obtained were examined with %weight loss values, mechanical properties, morphological characteristics (SEM) followed by FT-IR and X-ray powder diffraction. Three different chemical processes, carried out cellulase enzyme were proved to be successful. The reason for the microwave processes to be successful is the strength achieved by sonication. This cellulase enzyme processes were found to adequately modify the fibres surfaces.Öğe Effects of chemical modifications on mechanical properties of luffa cylindrica(Asian Publication Corporation, 2013) Merdan, Nigar; Sancak, E.; Yüksek, M.; Kocak, D.Among the natural fibres, Luffa cylindrica fibres are the ones that are widely available throughout the world. Luffa fibres are known to have lignocellulosic fibre characteristics. Depending on their use, there is work to make them more useful by means of chemical processes. For this aim, through two different processes, conventional and microwave, three different chemical processes were applied. The results obtained were examined with % weight loss values; mechanical properties, morphological characteristics (SEM) followed by FT-IR and X-ray diffraction properties. Three different processes chemical processes, carried out with formic acid and acetic acid were proved to be successful. The reason for the microwave processes to be successful is the strength achieved by sonication. In this study, formic acid and acetic acid processes were found to adequately modify the fibres surfaces.