Core-shell structure and swelling principle

Thermoplastic polymer shell encapsulates low-boiling-point hydrocarbons with a diameter range of 10~50 μm After heating, the internal liquid vaporizes, and the shell softens and expands, with a volume increase of up to 40 to 80 times It does not shrink after cooling, forming a stable closed-cell structure

Five core features 

Lightweight: After expansion, 70-90% of the volume is air, significantly reducing its density. Thermal insulation: The closed-cell structure blocks heat conduction, effectively reducing energy consumption Mechanical reinforcement: The elastic shell is resistant to multiple cycles of pressure, evenly distributing stress. Chemical stability: It is resistant to water, chemicals, and UV rays, adapting to harsh environments. Environmentally friendly and non-toxic: It can replace traditional chemical foaming agents and meets green manufacturing standards