The Magical Heat Shrink Tubing
Author:sanyuan Time:2017-07-07 10:59:13
There is a common knowledge you probably remember from science class, that an object expands when heated, and shrinks when cooled. This is a general rule for most objects under most temperatures. Then, there are exceptions.
A Magical Phenomenon – Negative Thermal Expansion
Materials shrink upon contract heating rather than expand; this phenomenon has a scientific term: Negative thermal expansion (NTE). NTE phenomenon has been discovered for a long time. The most common NTE phenomenon is the melt of ice, in which the melted water loses one tenth of the volume of the same ice before melting. For a long time, this is an interesting phenomenon but of little use, until the mass production of synthetic fiber in mid-20th century.
The Born Of A New Material
In 1950s, Paul Cook, engineer of Raychem Corporation started a study on improving vinyl polymer. The vinyl polymers are usually just long chains of small subunits, most of which are small organic monomers. These chains can be constituted of many hundreds or thousands of monomers in length, and the number and orientation of the chains determine the properties of the material largely. Paul sought to bind polymer chains cross with radiation to see what happens. This cross-link compound showed an extraordinary memory effect: if you stretch the material, and process it with radiation, it will remain stretched. Heat the same material again, and it will shrink to its original size.
The Emerge of Heat-shrink Tubing
Paul quickly realized the potential of this material: the NTE property makes it very suitable for bond, tightening and fixation. Based on his finding, Raychem Corporation released the first heat-shrink tubing products in 1960s. In 1970s, companies led by 3M broke Raychem's monopoly by independently developed heat-shrink tubing. This material has become more and more popular in civil construction and engineering since then. In telecom construction site such as a base station, the heat shrink tubing is a very practical tool to fix wires and cable lines, greatly raises the efficiency of the construction.
Purchase 3M Heat-Shrink Tubing
3M shrink tubing is a useful and reliable tool for the fixation of various cables and wires. All you need to install the heat-shrink tubing is a heat gun. Sometimes when you do not have a heat gun, a simple lighter can also do the trick. To buy 3M heat-shrink tubing, the best choice would be from an authorized 3M distributor, for they are often the people that can give you the best offer.
Sanyuan is such a distributor you are looking for. We have been working with 3M for more than ten years. We can get you a best offer we can from 3M. Please fill in the form below to leave an enquiry, or contact us at [email protected] for more discount information.