3, 4, 5 - Trimethoxy cinnamic

3, 4, 5 - Trimethoxy cinnamic acid: Surface bonding performance excellence modified raw materials As we know, the surface chemical composition and structure of glued materials bonding properties, durability, thermal aging properties have a significant impact; and the surface structure on the adhesive properties are often affected by changing the surface layer of the cohesive strength, thickness, porosity, activity and surface free energy and realization. To obtain good bonding strength, the necessary condition is adhesive completely glued material surface. Usually, in order to enhance the adhesion strength, a lot of practice is on the bonding surface chemical treatment. However, surface chemical structure not only has good stability and cohesion strength, but also considers it on the adhesive was not occur degradation. For example, phenolic adhesive for bonding of stainless steel and aluminum specimens were placed under 288 degrees heat aging treatment 50 and 100min, aluminum specimen stability is also quite good, and the stainless steel sample was almost lost all strength. This is because, in the stainless steel surface may occur in solid state redox reaction, resulting in high temperature aging performance drops greatly. In order to solve that can enhance the adhesion strength without lowering the strength of bonding parts, some experiments on steel surface coated with a layer of 3, 4, 5 - trimethoxy cinnamic acid, bonding sample thermal aging performance can be greatly improved. Therefore, change that can accelerate the polymer cracking surface atomic properties, may be of steel bonded thermal oxidation is very important. In addition, as we all know, PTFE is a surface can be very low inert polymeric material; usually the adhesive can bond it. However, in 3, 4, 5 - trimethoxy cinnamic acid treatment, PTFE broken bond, on the surface of the part of the fluorine atom was pulled down (solution were found to have a fluorine atom) and resulting in a surface of thin ....

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