Application of Porous Polydimethylsiloxane (PDMS) in oil absorption

International Conference on Innovative Technology, Engineering and Sciences 2018

工业技术;自然科学

Norfatriah, Abdullah^1 ; Ahmad Syamaizar, Ahmad Sabli^1 ; Zuruzi, Abu Samah^1

Faculty of Engineering, Universiti Teknologi Brunei, Jalan Tungku Link, Gadong Brunei Darussalam

BE1410, Brunei^1

关键词: Oil absorption;    Oil uptakes;    Oleophilic;    Over-compression;    Polydimethylsiloxane PDMS;    Polydimethysiloxane;    Small amplitude;    Templating method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/342/1/012050/pdf
DOI  :  10.1088/1757-899X/342/1/012050

来源: IOP

【 摘 要 】

Porous polydimethysiloxane (PDMS) displays both hydrophobic and oleophilic behaviour which makes it a suitable material to absorb oil in an aqueous stream. Furthermore, its elastomeric nature means that porous PDMS can be a reusable sorbent for oil. For such application, porous PDMS has to (i) absorb oil from aqueous stream quickly and (ii) discharge oil rapidly when compressed. In this study, porous polydimethylsiloxane (PDMS) has been fabricated using sugar templating method. The ability of porous PDMS to absorb olive, sunflower and vegetable oils with and without vibration was investigated. Small amplitude vibration was found to accelerate the oil uptake process and accelerates the absorption of olive and vegetable oil by 2.5 and 3 times, respectively. Compressive stress-strain curves over compression rates between 2 and 100 mm per min are similar and indicate mechanical property of porous PDMS does not vary significantly and can be rapidly compressed.