【摘要】 牛血清蛋白(BSA)的稀溶液在空气-水界面处会有蛋白质分子吸附,形成的液体薄膜具有典型的黏弹性。本文用Burgers模型研究了薄膜的本构关系,分析其蠕变和松弛特性,并提出了蠕变特性改善的方法。结果表明,向BSA中添加明胶等物质可以增加溶液黏性,蠕变特性有明显改善。更多还原

【Abstract】 Protein in the dilution of bovine serum albumin(BSA) is adsorbed at the air-water interfaces,and the absorbed protein forms typical viscoelastic liquid film.The Burgers model was used to describe the constitutive relation of the film.The creep and relaxation properties were studied.The approaches to amend the creep properties were analyzed.The result shows that creep properties will change obviously by the way of adding the gel to the solution to increase its viscosity.更多还原