• 专利标题:   Heat-generating coating material for ceramic substrate comprises ceramic substrate and heat-generating coating comprising iron powder, graphene powder, silver oxide, nano-silica, nano-alumina, rare earth element and ethyl cellulose.
  • 专利号:   CN111662579-A
  • 发明人:   ZHOU W, WU S, QIU J
  • 专利权人:   GUANGDONG RIHE ELECTRIC CO LTD
  • 国际专利分类:   C09D001/00, C09D007/61, C09D007/65, C09D011/02, C04B041/88
  • 专利详细信息:   CN111662579-A 15 Sep 2020 C09D-001/00 202083 Pages: 5 Chinese
  • 申请详细信息:   CN111662579-A CN10443162 22 May 2020
  • 优先权号:   CN10443162

▎ 摘  要

NOVELTY - Heat-generating coating material for ceramic substrate comprises a ceramic substrate and a heat-generating coating. The heat-generating coating comprises 15-30 pts. wt. iron powder, 10-25 pts. wt. graphene powder, 10-25 pts. wt. silver oxide, 7-20 pts. wt. nano-silica, 7-20 pts. wt. nano-alumina, 5-15 pts. wt. rare earth element, 3-10 pts. wt. tremolite, 3-10 pts. wt. green magnesium nickel stone, 3-10 pts. wt. medical stone, 10-25 pts. wt. ethyl cellulose, 7-15 pts. wt. binder, 8-15 pts. wt. terpineol and 6-10 pts. wt. diphenyl ether. USE - As heat-generating coating material for ceramic substrate. ADVANTAGE - The heat-generating coating material has high working stability and uniform coating effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the heat-generating coating material for ceramic substrate involving (i) performing ultrasonic surface cleaning, sand blasting and coarsening and oil removal processing on the ceramic substrate, (ii) pre-treating the surface of the ceramic substrate by plasma and forming a partial micro-pores on the surface of the ceramic substrate, (iii) weighing iron powder, graphene powder, silver oxide, nano-silica, nano-alumina, rare earth element, tremolite, green magnesium nickel stone, medical stone and ethyl cellulose, grinding for 30 minutes at 4000 rpm to obtain a heat-generating powder, adding the binder, terpineol and diphenyl ether to the powder, carrying out constant-temperature water bath mixing for 2 hours at 30-40 degrees C and preparing a heat-generating coating slurry and (iv) placing the ceramic substrate under a silk screen, printing the heat-generating coating slurry on the ceramic surface screen using a scraper, placing in air for 6-8 minutes, placing in a muffle furnace, heating at 1500 degrees C at a heating rate of 15 degrees C/minutes, heat preserving for 2 hours under a vacuum or an inert atmosphere and sufficiently diffusing the heat-generating coating material to form the heat-generating coating on the surface of the collective material to obtain the product.