Sticking principle of 3M double-sided tape

3M double-sided Adhesive Tape has formed an industrial scale after decades of rapid development since its inception. Many people ask, why can 3M double-sided tape stick to objects? This is indeed a question worthy of further study. Here's why.

A layer of Adhesive Tape is coated on the surface of 3M double-sided adhesive to adhere to the article. The interaction process between adhesive molecules and surface molecules of the adherend is as follows: first, the liquid adhesive molecules diffuse to the surface of the adherend with the help of Brownian motion, so that the polar groups or chain links at the two interfaces are close to each other. In this process, temperature rise Applying contact pressure and reducing adhesive viscosity are conducive to the strengthening of Brownian motion. Bonding is the result of the interaction between the interfaces of different materials.

Then there is the generation of adsorption force. When the distance between the adhesive and the adherend reaches 10-5, the interfacial molecules will have mutual attraction, which further shortens the distance between the molecules to a Zui large stable state. If the polarity of the adhesive is too high, sometimes it will seriously hinder the progress of the wetting process and reduce the Adhesive Tape force. 3M double-sided tape is widely used in daily life, and can be used in mobile phone manufacturing, optical optoelectronics, sports equipment, home appliances, computers, automobiles and other fields.