𝐓𝐨𝐝𝐚𝐲'𝐬 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄 𝐒𝐡𝐚𝐫𝐞 : 𝐅𝐫𝐨𝐦 𝐒𝐨𝐟𝐚 𝐅𝐨𝐚𝐦 𝐭𝐨 𝐒𝐞𝐥𝐟-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐓𝐞𝐜𝐡 ✳️
𝐓𝐨𝐝𝐚𝐲'𝐬 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄 𝐒𝐡𝐚𝐫𝐞 ✳️ 𝐅𝐫𝐨𝐦 𝐒𝐨𝐟𝐚 𝐅𝐨𝐚𝐦 𝐭𝐨 𝐒𝐞𝐥𝐟-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐓𝐞𝐜𝐡 ✳️ Polyurethane foams are unlocking a new use: triboelectric nanogenerators (TENGs). 💡 𝐖𝐡𝐚𝐭 𝐚𝐫𝐞 𝐓𝐄𝐍𝐆𝐬 (𝐓𝐫𝐢𝐛𝐨𝐞𝐥𝐞𝐜𝐭𝐫𝐢𝐜 𝐍𝐚𝐧𝐨𝐠𝐞𝐧𝐞𝐫𝐚𝐭𝐨𝐫𝐬)? TENGs are devices that turn everyday motion—pressing, bending, tapping, walking, vibrations—into electricity. They work using the triboelectric effect: when two different materials touch and separate, they exchange charges. That charge imbalance creates a voltage that can drive current through a circuit. Because TENGs can harvest energy from small, low-frequency motions, they’re exciting for self-powered wearables, sensors, e-skins, IoT nodes, and energy harvesting from human movement and ambient vibrations. ✴️ 𝐖𝐡𝐲 𝐟𝐥𝐞𝐱𝐢𝐛𝐥𝐞 𝐩𝐨𝐥𝐲𝐮𝐫𝐞𝐭𝐡𝐚𝐧𝐞 (𝐏𝐔) 𝐟𝐨𝐚𝐦? PU foam isn’t just “soft.” Its 3D porous network means charges can build not only on the surface, but also inside pores during ...