Bonding process between metal substrate and glass substrate

[0025] The preparation process of the adhesive film can be as follows: Weigh the thermoplastic polyurethane resin, the latent curing agent, the thickener and other auxiliary agents according to the above formula, mix them evenly to obtain a water-dispersed mixture, and add a certain amount of deionized water to adjust. The value of the solids content of the water-dispersed mixture.

[0026] Then, the water-dispersed mixture is evenly coated on the release film or release paper, and after being baked in an oven for a period of time to be completely dried, an adhesive film with a certain thickness is obtained. In a specific embodiment, the temperature of the oven may be 50° C., and the drying time may be about 10 minutes.

[0027] Another embodiment of the present invention provides a bonding process between a metal substrate and a glass substrate, which utilizes the above-mentioned adhesive film. The bonding process includes the following steps:

[0028] S1. The surface of the m

[0039] Add 100 parts of Dispercoll U58, 8 parts of Dispercoll 2516, 1.5 parts of Rheovis PU 1190, 2 parts of DYNOL 604, 1 part of BYK 333 to a 250ml plasticizing cup, and add deionized water and mix well to obtain solid content The mixture was dispersed in 48 wt% water. The above-mentioned water-dispersed mixture was evenly coated on the PE coated release paper, baked in an oven at 50° C. for 10 minutes, and after it was completely dried, an adhesive film with a thickness of 100 μm was obtained.

[0040] Plasma sputtering was performed on the stainless steel surface using a jet AP plasma treatment system with a scan rate of 1 m / min. The polymer coating selects 94Prime from 3M Company as the polymer primer. The ink coating is made of HF GV3-S from Seiko Ink.

[0041] Place the adhesive film between the polymer coating and the ink coating, remove the PE-coated release paper, then press at 100°C and 0.4Mpa pressure for 60s, then take it out and let it stand for 4h.

[0043] Add 100 parts of Dispercoll 2899, 8 parts of Dispercoll 2516, 1.5 parts of Rheovis PU 1190, 2 parts of DYNOL 604, 1 part of BYK 333 to a 250ml plasticizing cup, and add deionized water and mix well to obtain solid content The mixture was dispersed in 48 wt% water. The above-mentioned water-dispersed mixture was evenly coated on the PE coated release paper, baked in an oven at 50° C. for 10 minutes, and after it was completely dried, an adhesive film with a thickness of 100 μm was obtained.

[0044] Plasma sputtering was performed on the stainless steel surface using a jet AP plasma treatment system with a scan rate of 1 m / min. The polymer coating selects 94Prime from 3M Company as the primer. The ink coating is made of HF GV3-S from Seiko Ink.

[0045] Place the adhesive film between the polymer coating and the ink coating, remove the PE-coated release paper, then press at 100°C and 0.4Mpa pressure for 60s, then take it out and let it stand for 4h.