论文部分内容阅读
硅橡胶,因其耐热、耐寒、耐生物老化等多种优势,被广泛应用于生物医学领域,但因其亲水性差,生物兼容性仍存在一些限制。聚乙烯基吡咯烷酮(PVP)是一类常用的改变材料表面特性的物质,可以使材料表面覆盖亲水涂层。利用接触角测试的方法,研究不同PVP亲水溶液及其不同浓度对硅橡胶亲水性的改变,探索最优PVP溶液,最适浓度范围,确定偶联剂的选用,以使硅橡胶具有更好的生物兼容性。结果显示,PVP溶液的最佳质量浓度为2%,分子量为40000,用于预处理硅橡胶表面的硅烷偶联剂最佳选择为KH792。优化了硅橡胶的表面特性,提高了其生物医学领域利用效能。
Silicone rubber is widely used in the field of biomedicine due to its advantages of heat resistance, cold resistance and aging resistance. However, due to its poor hydrophilicity and biocompatibility, there are still some limitations. Polyvinylpyrrolidone (PVP) is a commonly used material that changes the surface properties of a material and allows the material to be covered with a hydrophilic coating. The contact angle test method was used to study the hydrophilicity of different PVP hydrophilic solutions and their different concentrations of silicone rubber to explore the optimal PVP solution, the optimal concentration range, to determine the choice of coupling agent to make silicone rubber has better Biocompatibility. The results showed that the optimal concentration of PVP solution was 2% and the molecular weight was 40,000. The best choice of silane coupling agent for pretreatment of silicone rubber surface was KH792. The surface properties of silicone rubber are optimized and their use efficiency in the biomedical field is enhanced.