• 专利标题:   Photovoltaic backboard used in photovoltaic module, comprises weather-resistant layer, base material layer, black reflecting layer comprising organic pigment, and barrier layer comprising high barrier composition containing polymer resin, nano material and additive.
  • 专利号:   CN115714147-A
  • 发明人:   ZHOU G, LIN W, LI N
  • 专利权人:   FIRST JIAXING NEW MATERIAL CO LTD
  • 国际专利分类:   B32B027/30, B32B027/36, B32B033/00, B32B009/00, B32B009/04, C08J005/18, C08K003/22, C08K003/36, C08L025/06, C08L027/08, C09D127/08, C09D127/12, C09D201/04, C09D005/33, C09D007/61, C09D007/62, H01L031/049
  • 专利详细信息:   CN115714147-A 24 Feb 2023 H01L-031/049 202322 Chinese
  • 申请详细信息:   CN115714147-A CN11466498 22 Nov 2022
  • 优先权号:   CN11466498

▎ 摘  要

NOVELTY - A photovoltaic backboard comprises sequentially weather-resistant layer (1), base layer (2), black reflecting layer (3) and barrier layer (4). The layer (3) is provided with organic pigment. The layer (4) is prepared from high barrier composition comprises 50-90 pts. wt. polymer resin, 3-30 pts. wt. nano material and 1-12 pts. wt. additive. USE - Photovoltaic backboard used in photovoltaic module (claimed) e.g. solar cell module. ADVANTAGE - The photovoltaic backboard comprises barrier layer comprising high barrier composition containing polymer resin and nano material to form a dense structure, obstructs water vapor and air, organic pigment and polar substance, and reduces polar substance absorbing pigment generated in the hydrolysis process of the adhesive film. Even if the adhesive film generates polar substance due to water vapor action far away from one side of the backboard, because the barrier layer can prevent organic pigment, and avoids high anti-black coating organic substance and contact film to solve the film dyeing problem. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a photovoltaic module, which comprises front layer transparent packaging board, front layer packaging film, battery sheet layer, back layer packaging film and back board. The back board is the photovoltaic backboard. The barrier layer of the back board is adjacent to the adhesive film. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the photovoltaic backboard. 1Weather-resistant layer 2Base layer 3Black reflection layer 4Barrier layer