摘要
采用蚕丝和聚羟基乙酸（PGA）长丝以0∶6和3∶3两种不同比例制备了2种编织线,再以这2种编织线为原料在小口径针织机上制备针织支架。将两种支架浸入PBS（pH为7.4）中,放入培养箱,在温度为37℃的条件下,放置0、1、2、3周拍摄扫描电镜照片来观察其表面结构形态,放置0、0.5、1、1.5、2、2.5、3周测试其失重和断裂强力。研究表明：在3周降解过程中,3 PGA/3蚕丝比6 PGA支架降解的速度慢,3 PGA/3蚕丝支架的质量损失率低于6 PGA编织线,3 PGA/3蚕丝支架强力保持率高于6 PGA支架。
Two kinds of braided yarns are prepared by weaving silk with different proportions of silk and polyglycolic acid （PGA） filaments of 0 ： 6 and 3 ： 3. The two kinds of scaffolds are immersed in PBS （pH 7.4） and placed in the incubator at 37℃. The surface morphology is observed in 0, 1, 2 and 3 weeks and scanned in 0, 0.5,1, 1.5, 2, 2.5, 3 weeks respectively to test its weight loss and breaking strength. The results show that the degradation rate of PGA/silk scaffold is slower than that of pure PGA scaffold during 3 weeks. The quality loss rate of pure PGA scaffold is more than that of PGA/silk scaffold, and the strength retention rate of PGA/silk scaffold is higher than that of pure PGA scaffold.
出处
《上海纺织科技》
北大核心
2018年第1期19-20,42,共3页
Shanghai Textile Science & Technology
基金
河南省高等学校青年骨干教师资助计划
关键词
蚕丝
聚羟基乙酸
针织
支架
降解
silk
polyglycolic acid
knitting
scaffold
degradation
