KEKİK YAĞI İLE HAZIRLANMIŞ BİYOPOLİMER KOMPOZİT FİLMLER VE ÖZELLİKLERİNİN İNCELENMESİ

Bu çalışmada, tamamen yenilenebilir ve biyolojik olarak parçalanabilen kompozit filmler üretmek için; polimer matris olarak biyobazlı akrilatlanmış epoksitlenmiş soya yağı (AESO) öncelikle antibakteriyel özelliği kanıtlanmış güçlü bir esansiyel yağ olan kekik yağı (KY) farklı oranlarda (ağırlıkça %0, %1, %2, %3, %4, %5) ilave edilerek oluşturulan filmlerin antibakteriyel özellikleri incelenmiş ve en uygun oran belirlenmiştir. Bu oran sabit tutularak çalışmanın ikinci aşamasında farklı oranlarda nanokil (ağırlıkça %1, %2, %3, %4, %5 ) ilavesi ile nanokompozit filmler hazırlanmıştır. Elde edilen malzemelerin antibakteriyel aktivite testleri yapılmış, su buharı geçirgenlik özellikleri incelenmiş, ayrıca pH, şişme-çözünürlük-su içeriğine bakılmıştır. Su içerisinde şişme oranı ortalama %0,2437-2,1500 arasında belirlenirken, suda çözünürlük oranı % 0,1550-0,3100 aralığında olmuştur. Su sorpsiyonu ise % 0,6633-0,8917 aralığında değerler almıştır. 72 saat sonunda pH değerleri 7.23-7.29 aralıklarında ölçülmüş ve bu değer cilt pH’ı ile uyumludur. Son olarak su buharı geçirgenliği testinde 1381,9- 2,1357x10-10 g.m/(m2*Pa*s) aralığında değerler kaydedilmiştir. Bu değerlerde oldukça düşük bir su buharı geçirgenliğine sahip olduklarını göstermektedir.

Anahtar Kelimeler:

Kekik yağı, antibakteriyel aktiflik, nanokil, biyobazlı film kompozit

Investigation of the Properties of Biopolymer Composite Films Prepared with Thyme Oil

In this study, to produce fully renewable and biodegradable composite films; acrylate epoxidized soybean oil (AESO) was used as the polymer matrix. Thyme oil (TO), an essential oil with proven antibacterial properties, was added to this biobased matrix structure at different rates (0, 1, 2, 3, 4, and 5 wt%). The antibacterial properties of the films obtained were examined and the most suitable ratio was determined. The antibacterial properties of the films were investigated and the most suitable TO ratio was determined. In the second stage of the study, the amount of TO was kept constant and nanocomposite films were obtained by adding nanoclay (NC) at different weight ratios (1, 2, 3, 4, and 5 wt%). The antibacterial activity tests of the obtained materials were carried out, their water vapor permeability properties were examined, and also pH, swelling-solubility-water content were examined. While the swelling ratio in water is determined between 0,2437-2,1500%, the water solubility ratio is between 0,1550-0,3100%. In water content, values were in the range of 0,6633-0,8917%. After 72 hours, pH values were measured between 7,23-7,29 and this value is compatible with skin pH. Finally, the values recorded in the range of 1381,9-2,1357x10-10 g.m/(m2*Pa*s) in the water vapor permeability test showed that the films had a very low water vapor permeability.

Keywords:

Thyme Oil, Antibacterial Activity, Nanoclay, Biobased Film Composite,

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