采用氩等离子体辅助接枝改性方法在聚丙烯(PP)材料表面接枝水溶性高分子聚乙烯基吡咯烷酮(PVP).衰减全反射傅立叶红外光谱(FTIR-ATR)和X射线光电子能谱(XPS)分析结果证明PP表面成功地接枝了PVP;接触角测试结果表明表面接枝PVP的聚丙烯表面水接触角相比于未改性的PP,降低了60.,亲水性得到有效改善.采用体外血小板黏附及乳酸脱氢酶实验(LDH)来评价改性前后PP的抗凝血性,评价结果表明表面接枝PVP的聚丙烯表面相比于未改性的PP有较少数量的血小板黏附和激活,表现出良好的抗凝血性.
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