• 专利标题:   Manufacturing electromagnetic wave shielding sheet useful in electric and electronic components e.g. heating mat, and electric blanket comprises mixing graphene powder and silicon-based resin, forming elastic fabric, and overlapping.
  • 专利号:   KR2486978-B1
  • 发明人:   JEON O N
  • 专利权人:   JEON O N
  • 国际专利分类:   C01B032/182, H05K009/00
  • 专利详细信息:   KR2486978-B1 09 Jan 2023 H05K-009/00 202305 Pages: 8
  • 申请详细信息:   KR2486978-B1 KR140305 20 Oct 2021
  • 优先权号:   KR140305

▎ 摘  要

NOVELTY - Manufacturing electromagnetic wave shielding sheet comprises adding 0.2-5 pts. wt. graphene powder to 100 pts. wt. silicon-based resin raw material, heating, mixing, discharging the molten raw material downward in the form of fibers through nozzles, thinning and hardening the fiber by air nozzles sprayed at high speed along the descending path, forming elastic fabric (41), overlapping the elastic fabric on top of the lower fabric having insulating properties and spraying water mixed with graphene powder and crosslinking agent, evaporating water by spraying hot air, overlapping upper fabric, quilting lower fabric, elastic fabric and upper fabric using quilting yarn containing 0.2-5 pts. wt. graphene powder and 1-5 pts. wt. black diamond powder. USE - The electromagnetic wave shielding sheet is useful in electric and electronic components e.g. heating mat, an electric blanket, an electric pad, an electric bed, an electric cushion, and an electric steamer. ADVANTAGE - The electromagnetic wave shielding sheet shields electromagnetic waves to prevent cancer and leukemia. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of elastic fabric forming. 1Elastic fabric formation 41Elastic fabric