Usually, to stick a piece of Rubber to an EVA foam using polyurethane glue, the method of halogenation of the rubber surface is used, is there any other alternative method to create this adhesion?
Keivan Hasanpour You can use following alternate methods:
- Corona discharge treatment: This method uses a high-voltage electric field to generate a corona discharge, which creates free radicals on the surface of the rubber. These free radicals can then react with other molecules to create functional groups, such as carboxyl groups, which can improve the wettability and adhesion of the rubber.
- Cold plasma treatment: This method uses a non-equilibrium plasma, which is a gas that has been ionized but is still at a low temperature. The plasma can create a variety of reactive species, such as radicals, ions, and electrons, which can react with the surface of the rubber to create functional groups.
- Sol-gel treatment: This method involves applying a sol-gel coating to the surface of the rubber. The sol-gel coating is a thin, porous layer that contains a variety of functional groups. These functional groups can improve the wettability and adhesion of the rubber.
These alternative methods are considered to be more environmentally friendly than halogenation, as they do not produce any harmful byproducts.
The best method for rubber surface treatment will depend on the specific application. If environmental concerns are a priority, then one of the alternative methods, such as corona discharge treatment or cold plasma treatment, may be a better option. However, if cost is a major factor, then halogenation may still be the best choice.
Yes, there are alternative methods to create adhesion between rubber and EVA foam without resorting to halogenation. Here are a few alternatives you can consider:
Before adopting any alternative method, it's important to conduct tests to ensure that the chosen adhesive and method provide the desired level of adhesion for your specific application. Adhesion strength can vary based on factors such as material composition, environmental conditions, and the stresses the bond will be subjected to. Always follow the manufacturer's instructions for the chosen adhesive and perform proper surface preparation to achieve optimal adhesion.
Hope this Helps.
Balakrishnan Arasu what is best solvent for eva to better adhesivity?
The above 5 solvents are commonly used for EVA - Which is a copolymer of Ethylene and vinyl acetate.
Compatibility: Ensure that the solvent is compatible with both the EVA material and the substrate you are bonding it to. Compatibility testing may be necessary.
Testing: Conduct adhesion tests to determine the most effective solvent for your specific application. This testing should consider the type of EVA, the substrate, and the intended use
Keivan Hasanpour Hope this helps.