Silicone buttons and other keys, as long as the product is needed to use the button, then the silicone button can be useful, for example; "Remote control button, instrument and equipment button, electronic dictionary button" including all electronic products can be used, then do you know, what makes the silicone button into a conductive silicone button, and how do we identify what is a conductive silicone button, the next small series will give you details.
In conductive silicone keys are usually divided into two conductive materials:
1, (conductive black particles) principle: the contact between conductive particles, forming a conductive path, so that the conductive adhesive has electrical conductivity, the stable contact between the particles in the adhesive layer is due to the conductive adhesive curing or drying caused. Before the conductive adhesive is cured or dried, the conductive particles are separated in the adhesive, and there is no continuous contact with each other, so they are in an insulating state. After the conductive adhesive is cured or dried, the volume of the adhesive shrinks due to the volatilization of the solvent and the curing of the adhesive, so that the conductive particles are in a stable continuous state with each other, and thus show electrical conductivity.
2, (ink conductive) electrically conductive printing ink (electrically conductive printing ink), paste ink made of conductive materials (gold, silver, copper and carbon) dispersed in the binder, commonly known as paste ink. It has a certain degree of conductive property and can be used for printing conductive points or conductive lines.
Ways to distinguish silicone buttons from conductive silicone buttons:
1, the black conductive silicone key identification method, to see whether there is a black dot at the bottom of the key, and the dot must have a certain thickness, there are also some dots with texture, if one of the two conditions is met, then the black conductive silicone key.
2, ink conductive silicone key identification method, is also to see whether there is a black dot at the bottom of the key, and the dot is particularly thin, and some form a small black block with the shape of the bottom of the key, which can not be deducted with the nail is the ink conductive silicone key.