Bonding process: Surface treatment for different properties of the adhesives and different situations, surface treatment. Strictly divided into general methods, chemical methods and physical methods. In the decoration industry, we mainly deal with the sticky objects simply. Such as: dust, oil pollution, rough surface, moisture and other aspects of treatment, to ensure that the sticky surface is clean, dry, no oil pollution.
The bonded surface should be uniformly coated to ensure infiltration and avoid air bubbles as far as possible. The bonding strength will be greatly reduced due to the presence of air holes, leading to degumming. Attention should be paid to the alignment position at one time. It can not be staggered. It can be pressurized to remove air and make it close contact.
The process of solidifying the adhesive layer by chemical and physical action. Curing is the last step to obtain bonding properties, which has a great influence on bonding strength. In the curing process, temperature, pressure and time are three important parameters of the curing process. The change of each parameter has a direct impact on the bonding strength (each adhesive has a specific curing temperature and time). It is necessary to exert a certain pressure on the curing process, because pressure is necessary for all the adhesives. It is conducive to the diffusion and penetration of adhesives, close contact with the adhesives, conducive to exhaust gas and moisture, avoid the generation of bubbles and voids, and make the adhesive layer uniform and the position of the adhesives fixed. In order to achieve the maximum bonding strength, it is necessary to ensure that there is sufficient curing time (which is usually referred to as a certain time to achieve the final bonding force).