Analytic Study of Non-Newtonian Double Layer Coating Liquid Flows in Optical Fiber Manufacturing
In mass manufacturing of optical fibers, the wet-onwet polymer resin coating is an efficient process for applying double layer coatings on the glass fiber. This paper presents an analytic study on the behavior of non-Newtonian polymer resins in the double layer coating liquid flow inside a secondary coating die of the optical fiber coating applicator. Based the approximations of fully developed laminar flow and the power law model of non-Newtonian fluid, the coating liquid flow of two immiscible resin layers is modeled for the simplified geometry of capillary armulus, where the surface of glass fiber moves at high fiber drawing speed. The effects of important parameters such as non-Newtonian fluid properties, the coating die size, and fiber drawing speed are investigated on the resin velocity profiles and secondary coating layer thickness.
Optical Fiber Manufacturing Fiber Coating Coating Die Non-Newtonian Fluid
Kyoungjin Kim Ho Sang Kwak
Department of Mechanical System Engineering, Kumoh National Institute of Technology Gumi, Gyeongbuk 730-701, Republic of Korea
国际会议
黄山
英文
260-263
2012-07-10（万方平台首次上网日期，不代表论文的发表时间）