Potassium Dichromate Surface Modification of Polyglycolic Acid (PGA) Multifilament  

作　　者：王碧峤 张佩华 房美函 

机构地区：[1]Key Laboratory of Textile Science and Technology,Ministry of Education,Donghua University [2]College of Textiles,Donghua University

出　　处：《Journal of Donghua University(English Edition)》2013年第5期394-396,共3页东华大学学报（英文版）

基　　金：Shanghai Municipality Science and Technology Commission,China(No.12DZ1940300)

摘　　要：For improving its hydrophilicity and biocompatibility,and preserving filament mechanical properties at the same time,polyglycolic acid( PGA) filament was modified by potassium dichromate solution with different processing time. Breaking force and water contact angle were tested. Surface changes before and after surface modifications were tested with scanning electron microscopy(SEM). Furthermore,differential scanning calorimeter(DSC) and Fourier transform infrared spectrometry(FTIR) were used to analyze the changes of molecular structure and functional group. Experimental results showed that 6 min was the most suitable time for improving hydrophilicity of PGA filament and preserving its mechanical properties.For improving its hydrophilicity and biocompatibility,and preserving filament mechanical properties at the same time,polyglycolic acid( PGA) filament was modified by potassium dichromate solution with different processing time. Breaking force and water contact angle were tested. Surface changes before and after surface modifications were tested with scanning electron microscopy(SEM). Furthermore,differential scanning calorimeter(DSC) and Fourier transform infrared spectrometry(FTIR) were used to analyze the changes of molecular structure and functional group. Experimental results showed that 6 min was the most suitable time for improving hydrophilicity of PGA filament and preserving its mechanical properties.

关 键 词：POTASSIUM dichromate(K2Cr2O7) surface modification HYDROPHILICITY polyglycolic acid(PG A) 

分 类 号：TS195.54[轻工技术与工程—纺织化学与染整工程]