Water-borne polyurethanes for high-performance electromagnetic interference shielding
Nowadays, a kind of new environmentally friendly coatings is used extensively under the name of water-borne polyurethanes. These coatings have attracted the attention of many researchers compared to conventional coatings due to the low emission of volatile organic compounds and the use of water as the solvent. In fact, this kind of water-based polyurethanes, due to their incompatible with water, significantly usage of hydrophilic groups number to get water solubility. On the other hand, they have special properties such as high mechanical resistance and biodegradability. Therefore, the use of water-borne polyurethanes is used in a wide range of applications, including electromagnetic interference shielding that is electromagnetic wave emission in the form of radio waves, and is created in many electronic devices. So, in this chapter, first, the structure of polyurethane and its compounds will be discussed. The study of water-borne polyurethanes and their production methods and their application in electromagnetic interference shielding is mentioned
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