建筑材料性能的蛋白质工程:蛋白质变质对吸入空气功能的影响
Mohammad Sadegh Tale Masoule1, Joshua Prabahar1, Christopher Elliott Gottleib1
1Department of Civil and Architectural Engineering, University of Miami, Coral Gables, Florida 33146, United States.
ACS applied materials & interfaces
|September 16, 2025
概括
二甲基硫酸盐 (SDS) 和素等变质剂可以改变蛋白质结构,显著提高水泥糊的吸气性能和解耐受性. 控制的蛋白质展开是提高水泥耐用性的关键.
科学领域:
- 材料科学 材料科学 材料科学
- 蛋白质化学 蛋白质化学
- 土木工程 土木工程是指土木工程.
背景情况:
- 蛋白质被用作在水泥中的空气吸收剂.
- 变质剂可以改变蛋白质的结构和特性.
- 了解这些相互作用对于优化水泥性能至关重要.
研究的目的:
- 研究如何变质剂 (二硫酸盐,尿素,红素) 影响蛋白质结构.
- 为了评估蛋白质变性对水泥糊中吸气特性的影响.
- 评估对水泥微观结构和冷耐用性的影响.
主要方法:
- 蛋白质和变质剂在溶液中结合,形成复合物.
- 测量了表面活动,泡,流动性和置时间.
- 使用X射线微计算机断层扫描 (Micro-CT) 和扫描电子显微镜 (SEM) 分析了微结构.
- 结冰解阻力通过300个周期的质量损失来评估.
主要成果:
- 某些蛋白质变质复合物表现出明显高于单个成分的表面活性.
- 微CT显示,由于变质和协同效应,特定的复合物显著增加了空气带来的多孔性.
- 用素 (Lig) 和SDS修改的蛋白质,特别是Lys-Lig,Alb-Lig,Alb-SDS和CP-Lig,在空气引入的微观结构和冷解性方面表现出最大的改善.
- 一些组合是有害的,减少了空气带来的孔隙性,表明有利的蛋白质构造或界面不相容的破坏.
结论:
- 使用变质剂控制蛋白质的展开可以显著提高水泥糊的吸气性能和冷耐用性.
- 蛋白质-变质剂复合物的有效性高度特定于蛋白质和变质剂的组合.
- 泡界面的协同相互作用和蛋白质构造变化是影响空气空隙结构和水泥耐用性的关键因素.
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