The invention discloses an insulating film for large airplanes, which comprises a first film base material layer, a second film base material layer, and a flame-retardant fusion adhesive layer and a fiber mesh layer which are positioned between the first film base material layer and the second film base material layer, and the flame-retardant fusion adhesive layer is composed of 70-90 parts of modified melamine formaldehyde resin and 10-30 parts of halogen-free phosphorus-containing flame retardant; the modified melamine formaldehyde resin is prepared from the following components in parts by weight: 100 parts of melamine, 150 to 250 parts of formaldehyde solution, 2 to 6 parts of polyethylene glycol, 8 to 20 parts of ethylene glycol, 10 to 30 parts of urea, 10 to 15 parts of paraformaldehyde, 3 to 8 parts of hexahydrophthalic anhydride and 2 to 4 parts of carbodiimide. According to the flame-retardant fusion adhesive layer in the insulating film for the large aircraft, the toughness of the adhesive is improved, and the toughness stability of the adhesive is kept along with the rise of the temperature, so that the weather resistance of the flame-retardant fusion adhesive layer is improved.
本发明公开了一种用于大飞机的绝缘薄膜,包括:第一薄膜基材层、第二薄膜基材层和位于第一薄膜基材层、第二薄膜基材层之间的阻燃融合胶层和纤维网层,所述阻燃融合胶层是由70~90份改性三聚氰胺甲醛树脂和10~30份无卤含磷阻燃剂组成;所述改性三聚氰胺甲醛树脂由以下重量份的组分组成:三聚氰胺100份、甲醛溶液150~250份、聚乙二醇2~6份、乙二醇8~20份、尿素10~30份、多聚甲醛10~15份、六氢苯酐3~8份、碳化二亚胺2~4份。本发明用于大飞机的绝缘薄膜中阻燃融合胶层在改善胶的韧性同时,随着温度的升高保持了胶的韧性稳定性,从而提高了阻燃融合胶层的耐气候性。
Insulating film for large aircraft
用于大飞机的绝缘薄膜
2023-11-24
Patent
Electronic Resource
Chinese
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