Water/oil repellent and foam finishing of polyester non-woven filter cloth processed by plasma

Polyester non-woven filter cloth was processed through water/oil repellent and foam finishing after pretreatment by plasma.The verification of surface morphology and properties were studied before and after treated.The water contact angle was increased from 56.14°to 105.24°,while the oil contact angle was increased from 15.27°to 102.59°,which indicated the water-and-oil repellent properties were improved.After washing 20 times,the water contact angle was decreased by 5.6%,and the oil contact angle was decreased by 4.8%.It could meet the industrial request and the durability was improved.