CAAI 2320 Contact Angle Measurement

Pengujian sudut kontak (Contact Angle) air dilakukan untuk mengetahui sifat keterbasahan permukaan film/membran. 

Pengujian ini dilakukan dengan meneteskan air bervolume 5 μL ke atas permukaan film/membran. 

Tetesan air yang mengenai permukaan membran difoto dengan menggunakan kamera atau direkam dalam bentuk video. 

Foto ini kemudian dianalisis dan diukur sudut kontak airnya. Sudut kontak merupakan sudut yang dibentuk antara bidang permukaan film/membran dan bidang droplet air. Dari sudut ini dapat ditentukan sifat keterbasahan suatu membran. 

Untuk nilai sudut kontak 0º, maka membran tersebut bisa dikategorikan sebagai membran super hidrofilik. 

Sudut kontak bernilai 0º-90º dikategorikan sebagai hidrofilik. 

Untuk sudut 90º-120º masuk ke dalam kategori hidrofobik, sedangkan sudut 120º-150º dikategorikan ultrahidrofobik, dan yang terakhir untuk sudut di atas 150º, membran memiliki sifat super hidrofobik.

Cara merujuk/sitasi penggunaan alat CAAI 2320 di paper:

“The wettability of the xxxxxx membranes was investigated from the water contact angle (WCA) value measured by a contact angle measurement apparatus (CAAI 2320, Center of Aerosol and Analytical Instrumentation (CAAI), Bandung, Indonesia) [1,2,3,4]”
“A contact angle measurement apparatus (CAAI 2320, Center of Aerosol and Analytical Instrumentation (CAAI), Bandung, Indonesia) [1,2,3,4] was used to evaluate the wettability of the xxxxxx mats.”
“Contact angle measurement apparatus (CAAI 2320, Center of Aerosol and Analytical Instrumentation (CAAI), Bandung, Indonesia) [1,2,3,4] evaluated the wettability of the xxxxxxxxxx mats.”
“The characteristics of the xxxxxxx surfaces were examined using a contact angle meter (CAAI 2320, Center of Aerosol and Analytical Instrumentation (CAAI), Bandung, Indonesia) [1,2,3,4]” 

Keyword: Contact Angle Measurement, Indonesia, Pengukuran sudut kontak, hydrophilic, hydrophobic, sessile drop, pendant drop, hidrofobik, hidrofilik, sifat keterbasahan

Beberapa publikasi yang menggunakan CAAI 2320 Contact Angle Measurement:

1. “Structure and morphology optimization of nanofiber membrane for the application of high-performance air filtration”, Powder Technology, Vol 430 (2023) 118978 https://doi.org/10.1016/j.powtec.2023.118978   |PDF|

2. “Fabrication and Structure Optimization of Expanded Polystyrene (EPS) Waste Fiber for High-Performance Air Filtration”, Powder Technology, Vol 402 (2022) 117357 https://doi.org/10.1016/j.powtec.2022.117357

3. “High-performance blow spun waste-acrylonitrile butadiene styrene (ABS) fibrous membrane for air filter”, Journal of Materials Research and Technology, Vol 18 (2022) 4564-4577 https://doi.org/10.1016/j.jmrt.2022.04.107

4. “Superhydrophilic Bilayer Structure of Nylon 6 Nanofibers/Cellulose Membrane and Its Characterization as Potential Water Filtration Media”, RSC Advances, Vol 10 (2020), 17205 – 17216,    https://doi.org/10.1039/D0RA01077D

5. “Electrospun nanofiber from various source of expanded polystyrene (EPS) waste and their characterization as potential air filter media”, Waste Management, Vol 103,(2020) 76-86   https://doi.org/10.1016/j.wasman.2019.12.017

6. “Controlled morphology of electrospun nanofibers from waste expanded polystyrene for aerosol filtration”, Nanotechnology,  Vol 30 (42), (2019) 425602  https://doi.org/10.1088/1361-6528/ab2e3b

7. “The synthesis of nanofiber membranes from acrylonitrile butadiene styrene (ABS) waste using electrospinning for use as air filtration media”, RSC Advances, Vol 9 (53),(2019) 30741-30751   https://doi.org/10.1039/C9RA04877D

8. “Synthesis of Electrospun PAN/TiO2/Ag Nanofibers Membrane As Potential Air Filtration Media with Photocatalytic Activity”, ACS Omega , Vol 7, (2022) 10516–10525 https://doi.org/10.1021/acsomega.2c00015