• 专利标题:   Energy-saving and environmentally friendly insulating varnish useful for ultraviolet curing enameled wire, comprises oligomer A, modified novolac epoxy resin, diluent monomer, insulating performance modifier, photoinitiator, adhesion promoter, antifoaming agent, and wetting agent.
  • 专利号:   CN115717012-A
  • 发明人:   ZHANG Y
  • 专利权人:   HUZHOU LONGZHU POLYMER NEW MATERIAL CO
  • 国际专利分类:   C09D133/08, C09D163/10, C09D167/06, C09D175/04
  • 专利详细信息:   CN115717012-A 28 Feb 2023 C09D-133/08 202321 Chinese
  • 申请详细信息:   CN115717012-A CN11540950 01 Dec 2022
  • 优先权号:   CN11540950

▎ 摘  要

NOVELTY - Energy-saving and environmentally friendly insulating varnish comprises 35-45 pts. wt. oligomer A, 12-15 pts. wt. modified novolac epoxy resin, 30-40 pts. wt. diluent monomer, 2-5 pts. wt. insulating performance modifier, 3-5 pts. wt. photoinitiator, 0.1-0.3 pts. wt. adhesion promoter, 0.2-0.3 pts. wt. antifoaming agent, and 0.2-0.8 pts. wt. wetting agent. USE - The energy-saving and environmentally friendly insulating varnish is useful for ultraviolet curing enameled wire. ADVANTAGE - The insulating varnish has breakdown voltage of ≯ 40000 V, curing time of (≤ 5 seconds), does not need to volatilize the solvent (endothermic process) in the process of manufacturing enameled wires, and reduces energy consumption. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation method of energy-saving and environmentally friendly insulating varnish, comprising adding oligomer, photoinitiator, defoamer and wetting agent into a reactor, stirring at 250-300 revolutions/minute, adjusting the temperature to 40-45℃, reacting for 45-55 minutes, slowly adding the insulating performance modifier, performing high-speed dispersion at 500-600 revolutions/minute for 30-45 minutes, fully reacting, adding the rest of the raw materials, reacting for 25-30 minutes, filtering and discharging.