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US 11,772,143 B2Granted
Micro fiber and method of manufacturing same
AssigneesHyundai Motor Company, Kia Motors Corporation, Industrial Cooperation Foundation Jeonbuk National University
InventorsGun Kang, Won Jin Seo, Mi Jung Yun, Hong Chan Jeon, Sung June Park, Sang Min Lee, Min Jae Choe, Eun Seon Kim
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Abstract
Disclosed are a micro fiber and a method of manufacturing the micro fiber are proposed. The micro fiber may be manufactured by controlling thickness and Young's modulus thereof using hollow fiber.
Claims12
A method of manufacturing a micro fiber, the method comprising:
- preparing a hollow fiber;
- injecting a liquid metal into the hollow fiber;
- forming a composite fiber by crystallizing the liquid metal to form a metal wire to thereby obtain the composite fiber, wherein the composite fiber comprises a core part comprising the metal wire, and a sheath part comprising the hollow fiber;
- drawing the composite fiber;
- and
- removing the hollow fiber from the composite fiber,
- wherein a Young's modulus of the hollow fiber ranges from about 0.5 MPa to about 1.5 MPa,
- wherein, at the drawing of the composite fiber, the metal wire is locally melted and thereby the composite fiber is drawn.
5 more elements
Dependencies are inferred from the claim text.