Wearable devices more and more infiltrated into our lives, these smart devices can not do without the support of the circuit. However, if these close-fitting equipment, hiding a root rigid circuit, the comfort of using it will be greatly reduced.
Professor Bao Zhenan, a chemical engineer, is trying to change the situation. For this situation, the choice of flexible electrode is a very natural idea.
For over a decade, her lab has always wanted to make electronics softer and more flexible, just like the second layer of the human skin. They want brittle plastics to become more conductive and flexible.
Recently, Professor Bao Zhenan published their latest achievements in Science Progress magazine. The paper describes a brittle plastic that can be chemically bent to the same extent as a rubber band and slightly increased in conductivity. The result is a soft and flexible electrode that fits nicely with our soft, fragile nerves, meaning that such circuits are on our surface and the nerves of our skin do not feel uncomfortable.
Professor Bao Zheenan very excited about the results: This flexible electrode opens up many new possibilities, such as the brain interface (implantable electronics) other aspects of the brain interface.
According to the Xinhua News Agency, Bao Zhenan said in an interview that the existing electronic devices, including electrodes and materials, are hard. In measuring the CNS current and cardiac current, the electrodes implanted in the brain or heart may damage nerves or Heart tissue. Therefore, the electrodes in contact with the nerve need to be as soft as the skin, which is an important issue to be solved in flexible electronic applications.
This material can bend like a rubber band
The main function of the edge banding is to seal the cross-section of the board, so as to avoid the damage of the board and the adverse factors (mainly moisture) in the process of use and prevent the formaldehyde inside the board from volatilizing, and at the same time achieve the effect of beautiful decoration.
The product has the following main features: smooth surface, no blistering, no ribbing, moderate gloss, smooth surface and back surface, uniform thickness, uniform width, reasonable hardness, high elasticity, good quality, strong wear resistance, trimmed and sealed The color of the side and the side is close to the surface color, not whitish, good gloss, and the overall color of the finished furniture is coordinated.
Judge good or bad
1. Look at the hue and surface roughness of the edge banding strip. The color of the surface of a good edge banding strip is also very important. Whether the color is close to the customized product and is gorgeous. If the surface is very rough and there are pull marks, the quality is definitely not much better. This is the surface quality of the edge banding strip. It has nothing to do with the quality of the inner material of the edge banding, mainly the production process of the edge banding factory and the production technical skills of the employees. A good edge banding strip is: the surface must be smooth, no blistering or seldom bubbling, no drawing or few drawing, moderate gloss, not too shiny or too matte (unless there are special requirements).
2. Check the flatness of the surface and bottom of the edge banding and whether the thickness is uniform, otherwise it will cause the joint between the edge band and the board, the glue line is too eye-catching or the gap between the board and the edge band is too large, which will affect the overall beauty. Details determine success or failure, and often a small detail problem may bring an embarrassing situation where the overall effect is not good.
3. Whether the edge trimming is whitish, whether the surface of the bent edge strip is severely whitish, and whether the ground color of the trimming strip is close to the surface color of the board in question. PVC Edge Banding strips are mainly made of PVC and Calcium Carbonate plus additives. If the calcium carbonate content is too high, whitening of the edge banding and bending will occur, which proves that the quality of such products is not good.
4. Whether the strength is okay and whether there is elasticity. High strength means good wear resistance, and the corresponding quality is better. Too high strength also means increased processing difficulty. Low elasticity means low wear resistance and low aging resistance. In addition, according to actual production needs, manual trimming is generally required, and soft spots can be made appropriately, and the automatic edge banding machine can make hard points appropriately.
5. Whether the adhesive is applied evenly and whether it is easy to fall off during use.
6. Smell whether the PVC edge banding strips taste or not. Products produced with good quality raw materials generally have a small taste. If the taste is too large, it means that the quality of the raw materials used in production is relatively poor.
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