公开(公告)号：US11883792B1

公开(公告)日：2024-01-30

申请号：US18241612

申请日：2023-09-01

Applicant: KING FAISAL UNIVERSITY

Inventor： Junaid Saleem ,  Safdar Hossain S K ,  Zubair Khalid Baig Moghal ,  Gordan McKay

IPC: B01J20/26 ,  B01J20/28 ,  B01J20/30 ,  C02F1/28 ,  C08J5/18 ,  C08J9/26 ,  C09K103/00 ,  C09K3/32 ,  C02F103/00 ,  C02F101/32

CPC classification number: B01J20/261 ,  B01J20/28004 ,  B01J20/28033 ,  B01J20/3007 ,  B01J20/3064 ,  B01J20/3071 ,  C02F1/285 ,  C08J5/18 ,  C08J9/26 ,  C02F2101/32 ,  C02F2103/007 ,  C02F2303/16 ,  C08J2201/0446 ,  C08J2323/12 ,  C09K3/32

Abstract: Sponge-like porous polypropylene thin film, and a method for preparing a sponge-like porous polypropylene thin film. The method includes dissolving polypropylene in an organic solvent to form a solution under reflux condition; adding a cavity forming agent to the solution and mixing the solution until the cavity forming agent is well-dispersed therein; applying the well-dispersed solution onto the solid substrate through spin coating to form a thin film on the solid substrate; peeling the thin film off the solid substrate; extracting the cavity forming agent from the peeled thin film by washing the peeled thin film in an aqueous or nonaqueous solvent, thereby obtaining a sponge-like porous polypropylene thin film with cavities, macro-voids, and micropores. The sponge-like porous polypropylene thin film is used as an oil sorbent. The sponge-like porous polypropylene thin film has about 400 to about 700 swellable cavities per cm2.