Bonding is any process in which two or more substrates are joined with the use of an adhesive. A substrate is surface of an object. An adhesive is any non-metallic binder that that acts via adhesion and cohesion. Most of the consumer technology that define the modern world are made using adhesives.
The use of adhesives to replace traditional fasteners like screws, bolts, and rivets has sped up manufacturing operations and pushed the creative boundary of the products. Thinner and lighter devices like smartphones and laptops are possible due to adhesives. Production speed for cars and motorcycles is improved by eliminating the preparatory processes required by traditional fasteners.
Although adhesives and bonding processes have now become an indispensable part of the industrial world, this was not always the case. Early adhesives did not have the strength and other properties needed for industrial applications. It was not until the introduction of modern bonding products like the polyurethane adhesives that manufacturers explored and embraced the bonding process.
Adhesives have a long history. Archaeologists and historians speculate that adhesives and the bonding process have been around for thousands of years. Our ancestors used anything plant saps and animal products for gluing things together. Even today, some people still use natural adhesives for certain bonding applications.
As previously mentioned, adhesives work via adhesion and cohesion. In the future, we will discuss how these two processes work.
Plyometric boxes or jump boxes are used for athletic training and exercise. Athletes jump on these boxes that come in different heights to train jumping power or explosiveness. Depending on the weight of the individual, these boxes are exposed to 50 to more than 100 kilograms of dynamic force. A plyometric box that is unable to handle these forces can come apart and can cause injury.
There are many kinds of materials used for plyometric boxes. There are foam, plastics, metal and wooden boxes. The metal boxes are the most durable. However, a mistimed jump can end up with the shin hitting the box. This can really hurt a lot and lead to a serious injury.
The metal boxes are also quite heavy which can be problematic if you have a small workout space as it will require quite a bit of moving. The plyometric boxes that are made of foam or plastics are the safer way to go. They are also the most expensive ones and the forces that they are constantly exposed to can cause the material to deform.
This brings us to the wooden boxes. Wood is not the most durable or softer material. However, with polyurethane adhesives and proper bonding, the boxes can be made to withstand all the forces you create when jumping on it. Plus, it is must lighter than metal and can easily be added with cushioning to keep you safe.