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利用球盘接触形式的光干涉膜厚测量试验机,研究了周期冲击载荷作用下蛋白质水溶液在材料表面的吸附膜生长特性.对比了溶液蛋白质组分、亲疏水对偶表面和冲击条件对球盘接触区蛋白质吸附膜厚的影响.结果显示动态冲击下蛋白质的吸附膜厚要远高于静态吸附,吸附膜不断在接触区生长,之后趋于稳定.金属钢球比陶瓷球、疏水盘表面比亲水盘面,均更有利于蛋白质吸附膜的生长.同时发现吸附膜厚与单一蛋白质的浓度关系不大,却和蛋白质种类关系很大,球蛋白比白蛋白具有更好的吸附成膜性能.
Using the ball-plate contact type optical interference film thickness testing machine, the growth characteristics of the adsorbed film on the material surface of the aqueous protein solution under cyclic impact loading were studied. The effects of the solution protein components, The results showed that the adsorption film thickness of protein under dynamic impact was much higher than that of static adsorption, and the adsorption film continued to grow in the contact zone and then became stable.Compared with ceramic ball and hydrophobic disk, Water disc surface, are more conducive to the growth of protein adsorption film.At the same time, it was found that the adsorption film thickness has little to do with the concentration of a single protein, but it has a great relationship with the protein species, globulin has better adsorption and film formation than albumin.