Numerical modelling of microfibers formation and motion during melt blowing

Sun G. W.; Song J.; Xu L.; Wang X. H.

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Numerical modelling of microfibers formation and motion during melt blowing

机译：熔喷过程中微纤维形成和运动的数值模拟

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Melt blowing (MB) is a widely used one-step process to manufacture products comprising microfibers in large quantities. However, fiber formation and motion are complicated and difficult to modeling in MB. In this study, a comprehensive MB model from orifice exit to collection screen is developed. Fiber is described as a model of a series of beads connected by polymer element. Fiber formation and motion are simulated by predicting beads deformation and speed. Compared with our previous work, the improved model introduces Giesekus constitutive equation, adds fiber crystal energy term and fiber thermal radiation term in the energy equation and considers fiber crystallization during fiber formation. The model can be used for predicting fiber spatial position, velocity, temperature, diameter, and crystallinity. This study provides precisely predicted results and a better understanding on the fiber formation process.

机译：熔喷（MB）是一种广泛使用的一步法，用于制造大量包含超细纤维的产品。但是，纤维的形成和运动很复杂，并且很难在MB中进行建模。在这项研究中，开发了从孔口出口到收集屏幕的全面MB模型。纤维被描述为通过聚合物元件连接的一系列珠粒的模型。通过预测珠子的变形和速度来模拟纤维的形成和运动。与我们以前的工作相比，改进的模型引入了Giesekus本构方程，在能量方程中添加了纤维晶体能量项和纤维热辐射项，并考虑了纤维形成过程中的纤维结晶。该模型可用于预测纤维的空间位置，速度，温度，直径和结晶度。这项研究提供了精确的预测结果，并对纤维形成过程有了更好的了解。

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来源
《The Journal of the Textile Institute》 |2018年第3期|300-306|共7页
作者
Sun G. W.; Song J.; Xu L.; Wang X. H.;
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作者单位

Shanghai Univ Engn Sci, Sch Fash Technol, Shanghai, Peoples R China;

Shanghai Univ Engn Sci, Sch Fash Technol, Shanghai, Peoples R China;

Shanghai Univ Engn Sci, Sch Fash Technol, Shanghai, Peoples R China;

Donghua Univ, Coll Text, Shanghai, Peoples R China;

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正文语种 eng
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关键词
Melt blowing; microfibers; formation; motion;

机译：熔喷;超细纤维;形成;运动;

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1. Numerical approach to modeling fiber motion during melt blowing [J] . Zeng Y.C., Sun Y.F., Wang X.H. Journal of Applied Polymer Science . 2011,第4期

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2. Effects of Compatibilizer and Airflow Field on the Formation of Helical Microfibers via Melt Blowing [J] . Li Hui, Huang Hui, Zeng Yongchun Journal of Polymer Science, Part B. Polymer Physics . 2019,第21期

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3. Numerical modeling and experimental investigation of fiber diameter of melt blowing nonwoven web [J] . Bo Zhao International Journal of Clothing Science and Technology . 2015,第1期

机译：熔喷非织造纤网纤维直径的数值模拟和实验研究
4. Effect of Melt-blowing Processing on Shape-Memory Polyurethane Microfiber Fabrics [C] . D.L. Safranski, K.Beatty, J. Boothby, Society for Biomaterials annual meeting and exposition . 2014

机译：熔喷工艺对形状记忆聚氨酯超细纤维织物的影响
5. On-line measurement and mathematical modeling of fiber properties during the melt spinning and melt blowing processes. [D] . Bansal, Vishal. 1997

机译：熔体纺丝和熔体吹塑过程中纤维特性的在线测量和数学建模。
6. Lateral Diffusion of a Free Air Jet in Slot-Die Melt Blowing for Microfiber Whipping [O] . Sheng Xie, Wanli Han, Xufan Xu, 2019

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7. Probabilistic Model Development of Web Structure Formation in the Melt Blowing Process [O] . Rajeev Chhabra, Robert L. Shambaugh 2004

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8. Molecular Motions in Low Molar-Mass Alkyl Amides: Models for Molecular Motions in Polyamides. (Reannouncement with New Availability Information). [R] . Johnson, C. G., Muthiah, J., Mathias, L. J. 1993

机译：低摩尔质量烷基酰胺中的分子运动：聚酰胺中分子运动的模型。（重新公布新的可用性信息）。

Numerical modelling of microfibers formation and motion during melt blowing

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