バガスサスペンションにおけるバブルダイナミクスとレオロギーのファイバーアスペクト比とCPAMの影響
Yidian Li1, Mengling Xie1,2, Yang Liu1
1Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
ACS omega
|September 2, 2025
まとめ
この研究は,バガス線維繊維 (BFF) の性質が泡の安定性にどのように影響するかを明らかにしています. 繊維の比率と濃度が高くなり,泡が良くなり,CPAMが加えられれば,持続可能な包装などの用途で泡の安定性が向上します.
科学分野:
- 材料科学
- レオロギー
- コロイドと表面化学
背景:
- 繊維のレオロギーを理解することは 繊維ベースの泡の性能に不可欠です
- 繊維面比,濃度,添加物は泡の振る舞いに大きく影響する.
研究 の 目的:
- バガス線維繊維 (BFF) の比率,濃度,およびカチオン型ポリアクリルアミド (CPAM) がスペンションのレオロジーとバブルダイナミクスに及ぼす影響を調査する.
- 繊維の特性,レオロジカルな特性,水性繊維のサスペンションにおける泡の振る舞いの間の相関を確立する.
主な方法:
- 超精細磨きと遠心分離による制御された面比のバガス繊維 (BFF) の製造.
- 繊維サスペンションの実験的レオロギー分析
- 繊維サスペンションの相互作用をモデル化するための分子動力学 (MD) シミュレーション.
- 異なるBFFとCPAM条件下でのバブル行動分析
主要な成果:
- BFFの比率と濃度の増加は,より高い粘度,収量ストレス,およびファイバーネットワークにつながり,横向的な泡の動きと変形を抑制しました.
- BFFの濃度が0.2%を超えると,繊維の異質性により不一致な泡の安定化が見られた.
- CPAMの添加 (0. 5g/L以上) は,静電相互作用を通じて繊維のクロスリンクを強化することによって,バブルの形状とサイズ安定性を一貫して改善しました.
結論:
- 繊維面比と濃度は,繊維ベースの泡のスペンジンのレオロギーとバブルダイナミクスを制御するための重要なパラメータです.
- CPAMは,繊維のクロスリンクを促すことで,水性繊維泡の効果的な安定剤として作用します.
- この発見は,持続可能な包装,防音,熱管理のための先進的な繊維泡を設計するための洞察を提供します.
関連する概念動画
Turbulent Flow: Problem Solving
183
Carbonation is a process used to dissolve carbon dioxide gas in a liquid, commonly used in the production of carbonated beverages. Achieving efficient carbonation requires careful control of temperature, pressure, and flow conditions. By adjusting these parameters, carbonation efficiency can be maximized, producing a higher concentration of CO2 in the liquid.
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures...
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures...
183
Factors Affecting Dissolution: Particle Size and Effective Surface Area
1.0K
Dissolution kinetics, an essential aspect of oral drug delivery, is significantly influenced by the drug's particle size. According to the Noyes-Whitney dissolution model, the dissolution rate correlates directly with the drug's surface area. The larger the surface area, the higher the drug's solubility in water, leading to a faster drug dissolution rate. Reducing particle size increases the effective surface area, enhancing the dissolution process. Micronization and nanosizing are...
1.0K
Molecular Weight of Step-Growth Polymers
2.3K
Step growth polymerization involves bi or multifunctional monomers. Bifunctional monomers react to form linear step growth polymers, whereas multifunctional monomers react to form non-linear or branched polymers.
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...
2.3K
Colloids and Suspensions
2.3K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
2.3K


