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CN-121973544-A - Full-open steel plate with coating and preparation method and application thereof

CN121973544ACN 121973544 ACN121973544 ACN 121973544ACN-121973544-A

Abstract

The invention belongs to the technical field of precision printing, and relates to a full-open steel plate with a coating, a preparation method and application thereof, wherein the full-open steel plate comprises a full-open steel plate substrate, the front side, the back side and the inner wall of an opening of the full-open steel plate substrate are respectively provided with a hydrophobic and oleophobic coating, or the front side and the inner wall of the opening of the full-open steel plate substrate are respectively provided with a hydrophobic and oleophobic coating, the back side of the full-open steel plate substrate is respectively provided with a friction-increasing coating, or the front side and the inner wall of the opening of the full-open steel plate substrate are respectively provided with a hydrophobic and oleophobic coating, and the back side of the full-open steel plate substrate is not provided with any coating; through setting up hydrophobic oleophobic coating in the front of full open steel plate base member and opening inner wall to set up hydrophobic oleophobic coating, increase friction coating or not setting up the coating on its reverse side selectively, can realize hydrophobic oleophobic and increase the combination of friction function, solve the thick liquids and break away from thoroughly, the shaping effect is poor and the ink is not full defect when current steel plate uses, and the cohesion of coating and steel plate base member is higher, and the life of steel plate is longer.

Inventors

  • ZHANG QIONG
  • WU LIANXIANG

Assignees

  • 焱阳新能源(苏州)有限公司

Dates

Publication Date
20260505
Application Date
20260326

Claims (10)

  1. 1. A coated full-open steel plate, characterized in that the coated full-open steel plate comprises a full-open steel plate substrate; the front surface, the back surface and the inner wall of the opening of the full-opening steel plate substrate are provided with a hydrophobic and oleophobic coating; Or, the front surface and the inner wall of the opening of the full-opening steel plate substrate are provided with a hydrophobic and oleophobic coating, and the back surface is provided with a friction-increasing coating; or, the front surface and the inner wall of the opening of the full-opening steel plate substrate are provided with hydrophobic and oleophobic coatings, and the back surface is not provided with any coating.
  2. 2. The coated full-open steel plate according to claim 1, wherein the full-open steel plate substrate has a thickness of 0.01-0.05 mm; Preferably, the opening width of the full-opening steel plate is 0.005-0.05 mm.
  3. 3. The full open steel plate with coating according to claim 1 or 2, wherein the hydrophobic oleophobic coating comprises a bonding underlayer and a hydrophobic oleophobic layer, and the bonding underlayer is arranged near one side of the full open steel plate substrate.
  4. 4. A full open steel plate with a coating according to any one of claims 1-3, characterized in that the friction enhancing coating comprises a bonding bottom layer and a friction enhancing layer, and the bonding bottom layer is arranged close to one side of the full open steel plate substrate.
  5. 5. The full-open steel plate with coating according to claim 3 or 4, wherein the thickness of the bonding bottom layer is 50-100 nm; Preferably, the raw materials of the bonding bottom layer comprise a modified epoxy resin-based binder and a silane coupling agent; preferably, the mass of the silane coupling agent accounts for 2-5% of the mass of the modified epoxy resin-based binder; preferably, the silane coupling agent comprises gamma- (methacryloyloxy) propyl trimethoxysilane; Preferably, the thickness of the hydrophobic and oleophobic layer is 10-50 nm; Preferably, the water contact angle of the hydrophobic and oleophobic layer is more than or equal to 110 degrees, the oil contact angle is more than or equal to 70 degrees, and the surface energy is less than or equal to 20 mJ/m 2 ; Preferably, the raw materials of the hydrophobic and oleophobic layer comprise a low surface energy material and a nano filler, and the low surface layer material comprises polydimethylsiloxane and/or polytetrafluoroethylene; preferably, the mass of the nano filler accounts for 5-15% of the mass of the low surface energy material; Preferably, the nanofiller comprises nanosilica and/or graphene; Preferably, the thickness of the friction increasing layer is 10-50 nm; Preferably, the surface roughness of the friction increasing layer is 0.8-2 mu m; preferably, the friction-increasing layer comprises a wear-resistant resin and an inorganic wear-resistant filler; Preferably, the abrasion resistant resin comprises polyurethane resin and/or polyimide resin; preferably, the mass of the inorganic wear-resistant filler accounts for 10-25% of the mass of the wear-resistant resin; Preferably, the inorganic wear-resistant filler comprises alumina and/or silicon carbide.
  6. 6. A method for preparing a full open steel plate with a coating according to any one of claims 1 to 5, comprising the steps of: Forming a hydrophobic and oleophobic coating on the front surface, the back surface and the inner wall of the opening of the full-opening steel plate matrix; Or, forming a hydrophobic and oleophobic coating on the front surface and the inner wall of the opening of the full-opening steel plate matrix, and forming a friction-increasing coating on the back surface; Or, only the front surface and the inner wall of the opening of the full-opening steel plate matrix are provided with the hydrophobic and oleophobic coating.
  7. 7. The method of manufacturing according to claim 6, wherein the full-open steel plate substrate is a pretreated full-open steel plate substrate; Preferably, the pretreatment includes degreasing, rust removal, cleaning and drying treatments; Preferably, the degreasing method comprises the steps of soaking a full-open steel plate substrate in an alkaline degreasing agent aqueous solution with the mass percentage of 5-10% for 10-20 min at the temperature of 40-60 ℃ to remove oil stains on the surface, and finishing degreasing; Preferably, the rust removing method comprises the steps of soaking a degreased full-open steel plate substrate in 10-15% hydrochloric acid aqueous solution for 5-10 min at 20-40 ℃ to remove surface oxide skin and rust, and completing the step of rust removing; preferably, the drying temperature is 30-45 ℃ and the drying time is 15-30 min.
  8. 8. The method of making according to claim 6 or 7, wherein the method of forming a hydrophobic oleophobic coating comprises forming a tie-down layer and forming a hydrophobic oleophobic layer; Preferably, the method of forming a friction enhancing coating includes forming a tie-down layer and forming a friction enhancing layer.
  9. 9. The method of claim 8, wherein the forming a cohesive bottom layer, the forming a hydrophobic oleophobic layer, and the forming a friction enhancing layer each comprise a deposition process or a coating process; Preferably, the deposition method comprises evaporation or sputtering; preferably, the coating method comprises blade coating or spray coating.
  10. 10. Use of a coated full-open steel plate according to any one of claims 1 to 5 in precision printing.

Description

Full-open steel plate with coating and preparation method and application thereof Technical Field The invention belongs to the technical field of precision printing, and relates to a full-open steel plate with a coating, and a preparation method and application thereof. Background The full-open steel plate is a metal plate which is formed by manufacturing a through hole with a vertical through state on a stainless steel sheet with a specific thickness, which is completely corresponding to a printed battery piece pattern, or a through hole metal plate with a vertical through state on a hole wall, which is formed by depositing metal ions in an electroplating and electroforming mode, is different from a printing steel plate with a traditional screen, in which no steel wire is blocked in an ink opening, is widely applied to the industrial fields of precision printing, slurry forming and the like, and the surface performance of the full-open steel plate directly influences the separation effect, the shaping precision and the ink uniformity of slurry, so that the product quality is determined. At present, the existing full-opening steel plate surface has the technical defects that ① is easy to adhere to the steel plate surface due to the fact that the steel plate surface is of a metal natural color, slurry (particularly slurry with higher viscosity) is easy to adhere to the steel plate surface, so that slurry is not thoroughly separated, formed products have defects of burrs, deformation, irregular edges and the like, the forming effect is poor, production efficiency is low due to unstable performance, ② is easy to accumulate and uneven flow due to the fact that the steel plate surface is smooth, friction force between the steel plate surface and the slurry is insufficient, rolling performance of the slurry on the steel plate surface is poor, and ink is not full at an opening of the steel plate, printing/forming patterns are different in depth, and gaps exist, so that product consistency is affected. In addition, the existing functional coating can not simultaneously meet the core requirements of shaping and inking, meanwhile, the existing coating and a steel plate substrate are poor in combination stability, insufficient in wear resistance and short in service life, and is difficult to adapt to long-term industrial batch production. Therefore, aiming at the technical problems, the full-open steel plate with the coating, which has good plastic effect, full inking and stable binding force between the coating and the steel plate, is urgently needed to be developed. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide the full-open steel plate with the coating, the preparation method and the application thereof, and the hydrophobic and oleophobic coating is arranged on the front surface and the inner wall of the opening of the full-open steel plate substrate, and the hydrophobic and oleophobic coating, the friction-increasing coating or no coating is arranged on the back surface of the full-open steel plate substrate, so that the high-efficiency hydrophobic and oleophobic function and the high-efficiency friction-increasing function are realized, the technical defects of incomplete separation, poor shaping effect and incomplete inking of the existing full-open steel plate slurry are overcome, meanwhile, the binding force between the functional coating and the steel plate substrate and the wear resistance of the obtained full-open steel plate with the coating are improved, the service life of the steel plate is further effectively prolonged, the production cost is reduced, and the industrial mass production requirement is adapted. In order to achieve the aim of the invention, the invention adopts the following technical scheme: In a first aspect, the present invention provides a coated full-open steel plate comprising a full-open steel plate substrate; The front surface, the inner wall and the back surface of the full-open steel plate substrate are provided with a hydrophobic and oleophobic coating; Or, the front surface and the inner wall of the opening of the full-opening steel plate substrate are provided with a hydrophobic and oleophobic coating, and the back surface is provided with a friction-increasing coating; or, the front surface and the inner wall of the opening of the full-opening steel plate substrate are provided with hydrophobic and oleophobic coatings, and the back surface is not provided with any coating. In the invention, the front surface of the full-open steel plate matrix refers to one side surface which is contacted with a PCB or other printed substrates when in use, and the reverse surface of the full-open steel plate matrix refers to a scraper surface which is opposite to the front surface. The full-open steel plate with the coating comprises the full-open steel plate substrate, on one hand, the water-and-oil-repellent coating is arranged on th