Development of the Melt Blowing Process for Microfiber Fabrication

9313694沈阳在熔体吹炼过程中，一股细小的聚合物气流被挤出成高速气流。气体的力量迅速将聚合物流衰减到直径小至一微米或更小的程度。熔喷纤维在商业上用于绝缘、吸水材料和过滤器。基于基本动量、连续性和能量平衡的考虑，该研究将开发一个描述熔喷复杂过程的综合模型。这项工作的目标是(1)验证模型并将其用于优化研究，(2)模拟和测试振荡熔喷喷流，以及(3)模拟和测试冷淬火。该模型、射流振荡技术和冷淬火技术的应用超出了熔喷的范畴。数百种商业非织造布工艺中的许多--从造纸到土工织物制造再到地毯衬垫的生产--都可以从这项工作中开发的知识库中受益。

9313694 Shambaugh In the melt blowing process, a fine polymeric stream is extruded into a high-velocity gas stream. The force of the gas rapidly attenuates the polymer stream to diameters as fine as one micrometer or less. Melt blown fibers are used commercially in insulation, absorbent material, and filters. Based on fundamental momentum, continuity, and energy balance considerations, the research will develop a comprehensive model that describes the complex process of melt blowing. The objectives of the work are to (1) verify the model and use the model for optimization studies, (2) model and test oscillating melt blowing jets, and (3) model and test cold quench. The model, the jet oscillation technique, and the cold quench technique have applications beyond melt blowing. Many of the hundreds of commercial nonwoven processes--from papermaking to geotextile fabrication to the production of carpet backing--could benefit from the knowledge base developed in the work.