Preliminary Study of Water Repellent Properties of Red Pepper Seed Oil

1st Annual Applied Science and Engineering Conference

工业技术;自然科学

Kurniawan, F.^1 ; Madurani, K.A.^1 ; Wahyulis, N.C.^1

Laboratory of Instrumentation and Analytical Sciences, Chemistry Department, Faculty of Mathematic and Natural Sciences, Institut Teknologi Sepuluh Nopember, Arief Rahman Hakim, Surabaya

60111, Indonesia^1

关键词: Commercial waters;    Drying time;    Glass surfaces;    Oil coatings;    Red peppers;    Spray technique;    Water droplets;    Water-repellent properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/180/1/012278/pdf
DOI  :  10.1088/1757-899X/180/1/012278

来源: IOP

【 摘 要 】

The water-repellent properties of red pepper seed oil (capsicol) have been studied. The oil was coated on the glass surface by spray technique. Water repellent properties were performed by measuring the contact angle of water droplets. The measurement was conducted by varying the drying time of the oil coating at room temperature. The optimum contact angle of the droplets on the glass with capsicol coating is 46.77, which can be achieved in 30 min of drying time. It also obtained the smallest diameter of the droplets (0.47 cm). The longer drying time decrease the contact angles and increases the diameter. The results were compared with the bare glass and commercial water repellent. The contact angle of the droplets on the glass surface with capsicol coating is higher than bare glass, but lower than glass with commercial water repellent coating. It means that capsicol has the water-repellent properties.