颗粒状基是脆弱的,因此产生应力流体
Gunnar B Thompson1,2, Jiye Lee1, Krutarth M Kamani1
1Dept. Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign, 600 S Mathews Ave, Urbana, IL, 61801, USA.
Advanced materials (Deerfield Beach, Fla.)
|July 10, 2025
概括
这项研究揭示了颗粒状水凝作为脆性产量应力流体,使用卡马尼-多尼利-罗杰斯 (KDR) 模型与脆性 (Bt) 量化. 这个框架有助于设计用于生物医学应用的水凝,例如3D生物打印.
科学领域:
- 材料科学 材料科学 材料科学
- 类风病学 类风病学 类风病学
- 生物医学工程 生物医学工程
背景情况:
- 颗粒状水凝在生物医学领域至关重要.
- 现有的风湿学方法往往忽视了暂时的屈服和不屈服的行为.
- 对于先进的应用,需要对颗粒状水凝类风湿学有全面的了解.
研究的目的:
- 为了描述颗粒状水凝的稳定和短暂的形学.
- 将Kamani-Donley-Rogers (KDR) 模型与脆性 (Bt) 应用于颗粒状水凝.
- 确定关键的微凝属性和影响风湿行为的颗粒状成分.
主要方法:
- 使用振荡剪切测试与卡马尼-唐利-罗杰斯 (KDR) 模型和脆性 (Bt) 结合使用.
- 研究的聚乙烯甘醇和凝微凝具有不同的特性和颗粒状成分.
- 定量化稳定状态和短暂的风湿学参数.
主要成果:
- 颗粒状水凝表现出具有脆性,产生应力流体的行为.
- 带有Bt的KDR模型有效地捕捉了各种参数的颗粒状水凝类风湿学.
- 在组成和弹性模量,结构粘度和脆性之间观察到单调的关系.
- 与单质水凝相比,混合物表现出较低的产量压力.
- 微凝尺寸分布和聚合物分量在单质水凝中最具影响力.
结论:
- 带有Bt的KDR模型为了解颗粒状水凝类风湿学提供了定量框架.
- 这一框架对于水凝的合理设计至关重要,用于诸如注射,现场稳定和3D生物打印等应用.
- 这项研究强调了水凝设计中短暂的质性质的重要性.
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