由纤维素加厚的悬浮体的风湿学纳米晶体
Rajinder Pal1, Karthika Pattath1
1Department of Chemical Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
Nanomaterials (Basel, Switzerland)
|July 13, 2024
概括
这项研究探讨了纤维素纳米晶体如何影响粒子悬浮的流动特性. 较小的粒子显示出更明显的剪切薄化,其行为以功率定律参数为模型.
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
- 体科学 体科学 体科学
背景情况:
- 纤维素纳米晶体 (CNCs) 被探索为颗粒悬浮的加厚剂.
- 了解悬浮体质学对于涂料,食品和药品的应用至关重要.
研究的目的:
- 研究由CNC加厚的固体颗粒悬浮液的稳定质性行为.
- 确定颗粒大小,CNC度,盐度和pH对质性质的影响.
主要方法:
- 使用两种颗粒类型 (TG空心球,69微米;Solospheres S-32,14微米) 和不同的CNC度 (03.5重%).
- 在不同盐 (NaCl) 度和pH水平下测量了质性,包括粘度.
- 分析数据使用功率定律模型来描述粘度变化.
主要成果:
- 悬挂表现出剪切稀释行为,较小的颗粒大小更明显.
- 粘度数据被强度定律模型描述得很好.
- 在不同的条件下确定和分析了权力规律参数 (一致性指数,流动行为指数).
结论:
- CNC有效地加厚颗粒悬浮,影响其流动行为.
- 颗粒大小显著影响剪切稀释特性.
- 动力规律模型为这些CNC加厚悬挂提供了适当的框架.
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