The three-layer co-extrusion blown film could combine a variety of different characteristics in the extrusion process and significantly decreased cost, therefore this technology is being applied more and more broadly. The flow channel geometry of three-layer co-extrusion blown film die was built and then meshed by ICEM CFD with all-hexahedral elements whose flow field numerical simulation was solved by POLYFLOW to analysis the interface shape and position for LDPE/HDPE/LDPE three-layer co-extrusion blown film. It shows that the interface fluctuates when each layer met in the co-extrusion channel. The differential pressure of two adjacent layers bring about interfacial deformation, interface position changes due to the flow channel rearrangement when each layer met the co-extrusion channel.
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Research Article| February 05 2019
Interface analysis of three-layer co-extrusion blown film
AIP Conf. Proc. 2065, 040014 (2019)
Ma Xiuqing, Zhai Wenbin, Liu Ming; Interface analysis of three-layer co-extrusion blown film. AIP Conf. Proc. 5 February 2019; 2065 (1): 040014. https://doi.org/10.1063/1.5088334
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