Why the glue that we use for sticking does not stick inside the bottle?
We all use glue to stick many things. But it does not stick to the bottle in which it is, so how does it stick when you stick something? Today we are going to give you information about this.
First of all, you should know that white glue is prepared from a variety of chemicals. These chemicals are called polymers. These polymers are long and sticky strands. Glue also contains water, a kind of solvent. Due to water, this glue remains in liquid form until you stick something to it.
When we stick a paper with glue, the water evaporates as soon as the glue is added and the glue dries up and becomes hard. After this, sticky polymers are left in the glue. In science, it is called mechanical addition.
The glue inside the bottle does not dry out due to non-exposure to air. You must have also noticed that when you do not close the lid of glue for some time, it starts drying.