Three-layer composite hot melt adhesive film for bonding metal and polar functional plastic and processing technique thereof
A hot-melt adhesive film and layer compounding technology, applied in the direction of polymer adhesive additives, non-polymer adhesive additives, adhesive types, etc., can solve the problem of poor fusion, low bonding strength of hot-melt adhesive films, etc. Problems, to achieve the effect of convenient bonding, solving the problem of low bonding strength and convenient construction
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[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0032] The structure diagram of the three-layer composite film is as follows figure 1 Shown. Specifically, the components and parts by weight of the inner layer glue, the outer layer glue, and the transition glue are as follows.
[0033] Inner glue A1
[0034]
[0035] Inner glue A2
[0036]
[0037] When preparing the inner rubber, the raw materials of the inner rubber are added to the twin-screw extruder for granulation preparation, and the extrusion temperature is 150-210°C, preferably 170-210°C.
[0038] Outer glue B1
[0039]...
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