การเตรียมและศึกษาคุณลักษณะของเมมเบรนที่ผลิตจากน้ำยางพาราเพื่อทำเป็นเมมเบรนระดับไมโครและอัลตราฟิลเตรชั่น

Abstract

In this research, membrane was prepared from preserved natural rubber latex (NRL) with the mixture of ammonia solution 0.2% with sodium dodecyl sulfate (SDS) 1% by weight of latex. The surface of prepared membrane is roughness with pore size 0.3 Um. Contact angle of water droplet on the rubber membrane surface was 44° and increased to 97° after vulcanization process. Hydraulic permeability coetficient (Lp) of the vulcanized membrane was 8.31x10-14 m3s-1N-1 which is reverse osmosis membrane (RO), After the vulcanized membrane degraded by thermal oxidation, the hydraulic permeability, coefficient (Lp) was increase to 1.27x10-12 m3s-1N-1 which is nanofiltration o membrane (NF), The vulcanized rubber membrane surface treatment using chlorination process found that the hydraulic permeability coefficicnt (Lp) was increase to 1.4 x 10-11 m3s-1 N-1 which is poly (ethylene glycol) was dense with high water and ethanol sorption depend on the blending ratio and molecular weight of poly (ethylene glycol).