Treatment of the front surface of the adhesive bonding.

Adhesive in pasting an item, sometimes difficult not to achieve the desired results, paste surface treatment is a big reason, it can be said that the key to the success or failure of bonding is surface treatment, objects in the process of use, it is always inevitable to stick to some things, if not cleaned up when pasting, will affect the role of molecules, resulting in pasting is not strong enough, then the adhesive bonding surface treatment should be done in the end?
1, building parts in the surface for bonding before preparation, but also often with oil, mold release agent, weathering layer, carbonization layer, rust layer, these unsalted, not strong surface layer such as not clear treatment. It can greatly affect the glue performance.
2, the coarse treatment of the surface of the adhesive, can increase the actual bonding area of the bonded part, such as sand blasting can make the polished metal surface increase its bonding area by
20 times
; This has been proved by theoretical and practical experience.
3, surface treatment can also improve surface performance. Chemically treated metal surfaces, for example, can provide surface stress on the surface of the viscous material, thereby increasing bonding strength. Some hard-to-stick low-energy surface materials and rubber surface treatment can be effective bonding (e.g. treatment of Teflon with sodium-hydrant), the above-mentioned even agent on the surface treatment can also improve the bonding performance, so surface treatment in the building bonding process is very important.
.