Lightweighting: Revolutionizer of Density Transition
Thermally expandable microspheres achieve dynamic density transition through a heat-triggered
mechanism. Initially dense, the microspheres expand under heat as internal gas pressure drives shell
expansion, increasing volume by tens of times to form a honeycomb-like lightweight structure. This
property enables material weight reduction—in automotive parts and aerospace materials, microspheres
achieve "minimal addition, high-efficiency density reduction," maintaining substrate strength while
