The invention discloses a solvent-free lightning protection composite film, the composite film comprises a conductive metal net, a hot melt adhesive film and a backing, the conductive metal net is bonded and fixed on the backing through the hot melt adhesive film, and the hot melt adhesive film infiltrates and bonds the backing and fills pores of the conductive metal net. The lightning protection composite film is flat and smooth in surface, the initial surface viscosity of colloid is moderate, the phenomena of lack of glue, poor glue and pinholes on the surface after prepreg curing can be modified, and the lightning protection composite film has excellent lightning protection performance. In the preparation process, the viscosity of the hot melt adhesive is adjusted by controlling the temperature, the adhesive, the backing material and the expanded metal net are integrally formed, no solvent is introduced in the production process, and the process is time-saving, simple, convenient and environment-friendly.
本发明公开了一种无溶剂型防雷击复合膜,所述复合膜包括导电金属网、热熔胶膜和背衬,所述导电金属网通过热熔胶膜粘结固定于背衬上,所述热熔胶膜浸润粘结所述背衬并填充至所述导电金属网的孔隙中。本发明的防雷击复合膜表面平整光滑,胶体初始表面黏度适中,既可以修饰预浸料固化后表面缺胶、贫胶和针孔的现象,又具备优异的防雷击性能。制备过程通过控制温度来调节热熔胶体黏度,实现胶体与背衬材料和扩展金属网的一体成型,生产过程中无任何溶剂的引入,工艺省时、简便、环保。
Solvent-free lightning protection composite film and preparation method and application thereof
无溶剂型防雷击复合膜及其制备方法和应用
2024-07-19
Patent
Electronic Resource
Chinese
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / C09J ADHESIVES , Klebstoffe |
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