Preparation and properties of P(NIPAm-co-TMSPMA)/SiO2 underwater superoleophobic coating
In order to obtain P(NIPAm-co-TMSPMA)/SiO2 modified underwater superoleophobic composite coatings,P(NIPAm-co-TMSPMA)was synthesized by free radical polymerization.P(NIPAm-co-TMSPMA)/SiO2 was synthesized by sol-gel method,and P(NIPAm-co-TMSPMA)/SiO2 composite coating was prepared by dip-coating method.The P(NIPAm-co-TMSPMA)and P(NIPAm-co-TMSPMA)/SiO2 composite coating were characterized by means of FTIR,1H-NMR,GPC,TGA,SEM,contact angle measurement and UV.The results show that the hydrophilicity decreases and underwater superoleophobicity increases first and then decreases with the increase of SiO2.The underwater oil contact angle is 156° and the composite coating has a low adhesion at mass fraction of 30％SiO2.The composite coating has large contact angles and low adhesion,which owns excellent underwater superoleophobicity.The experiments show that the protein adsorption on the blank sample is 163 μg/cm2 and that on the composite coating is 82 μg/cm2,which shows similar protein repellent properties.The composite coating has underwater superoleophobicity,low adhesion and similar protein repellent properties,which provides more possibilities for its application in biomedical fields.
underwater superoleophobicitycomposite coatinganti protein adsorption
万方数据
