论文部分内容阅读
聚丙烯具有价格低廉、无毒、易于加工等优点,使其在许多领域得到广泛的应用。但是聚丙烯自身有较强的疏水性,与血液相接触时,血浆蛋白会在材料表面大量吸附,诱发血小板的粘附和聚集,从而造成凝血和溶血的发生。在生物医用材料的应用过程中,血液相容性是限制材料能否长期应用的关键因素。本文综述了表面改性法提高聚丙烯血液相容性的研究现状、表面改性方法和常用的大分子单体,并分析了当前聚丙烯表面改性研究存在的问题,展望了具有良好血液相容性聚丙烯的发展前景。
Polypropylene has the advantages of low price, non-toxic, easy processing, etc., making it widely used in many fields. However, polypropylene itself has strong hydrophobicity. When it comes into contact with blood, plasma protein adsorbs on the surface of the material in a large amount, inducing platelet adhesion and aggregation, resulting in coagulation and hemolysis. In the application of biomedical materials, blood compatibility is the key factor to limit the material’s long-term application. This review summarizes the current research status, surface modification methods and common macromonomers of surface modification of polypropylene to improve the blood compatibility of polypropylene, and analyzes the problems existing in the surface modification of polypropylene currently. In the end, Development prospects of polypropylene.