Hydrophilic modification on surface of poly（lactic acid）（PLA） surgical sutureChinese Full Text
LIU Mingfang;LIU Shuqiang;ZHANG Xiaofang;WU Gaihong;WANG Peng;GUO Hongyu;GUO Hongxia;College of Textile Engineering, Taiyuan University of Technology;
Abstract: In order to accelerate the degradation rate of PLA suture and shorten the degradation c, suture surface is firstly treated withlipase to increase hydroxyl groups on the surface of PLA, and then chitosan is grafted on the surface of the PLA surgical suture. Theinfluences of chitosan concentration, chitosan treatment temperature and treatment time of chitosan suture on the breaking strength,performance and surface structure the hydrophilicity of chitosan are studied. The optimal process is obtained as treating at 40℃ for 4 h withchitosan 3 g/L.
Keywords：
polylactic acid; surgical suture; chitosan; hydrophilic modification; fracture strength; hydroscopicity;
- DOI：
10.16549/j.cnki.issn.1001-2044.2018.03.008
- Series：
- Subject：
- Classification Code：
TS106.67
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