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  • 专利标题:   Dustproof film of speaker panel comprises upper surface of waterproof coating connected with heat conducting coating connected with an anti-static coating, and waterproof coating connected with a bonding layer.
  • 专利号:   CN112194996-A, CN112194996-B
  • 发明人:   LU Z
  • 专利权人:   ANHUI JINGLI ELECTRONICS CO LTD
  • 国际专利分类:   C09D123/06, C09D123/12, C09D125/14, C09D127/18, C09D161/06, C09D175/04, C09D005/24, C09D007/63, C09J007/30, H01R013/52
  • 专利详细信息:   CN112194996-A 08 Jan 2021 C09J-007/30 202109 Pages: 12 Chinese
  • 申请详细信息:   CN112194996-A CN11077238 10 Oct 2020
  • 优先权号:   CN11077238

▎ 摘　　要

NOVELTY - Dustproof film of speaker panel comprises waterproof coating (1), a heat conducting coating (2) and an antistatic coating (3). The upper surface of the waterproof coating is connected with a heat conducting coating. The upper surface of the heat conducting coating is connected with an anti-static coating. The one circumference of the lower surface of the waterproof coating is connected with a bonding layer. USE - Used as dustproof film of speaker panel. ADVANTAGE - The dustproof film of speaker panel is good in water resistance; improves radiating effect of the loudspeaker. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing loudspeaker panel dustproof film comprising (1) taking expanded polytetrafluoroethylene, aluminum stearate, styrene-acrylic emulsion, mixing methanol and sodium hydroxide aqueous solution to prepare water-proof coating (1), (2) taking graphene and phenolic resin, mixing and stirring, stirring uniformly, adding surfactant, polyethylene, aqueous polyurethane, absolute ethyl alcohol, water and concentrated hydrochloric acid, at the speed of 1500-2500 rotations/minutes, stirring for 30-50 minutes, preparing heat conducting coating, (3) spraying the first layer of heat-conducting coating on the upper surface of the (1) water-proof coating (1); flattening the first layer of heat-conducting coating by using the flat panel, carrying out the second layer of heat-conducting coating, using the same plane for flattening, cooling, forming a heat-conducting coating (2), (4) mixing the polypropylene, polyurethane, antistatic agent, ultraviolet absorbent and crosslinking agent, preparing antistatic coating; spraying anti-static coating on the surface of the heat-conducting coating (2), after drying the anti-static coating, forming anti-static coating (3), (5) removing the mold, cutting the edge of the waterproof coating (1), heat conducting coating (2) and anti-static coating (3), bonding the bonding layer (11) on the lower surface of the waterproof coating (1) to prepare dust-proof film.