科学素养与生活应用·英语30篇（4）

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自修复聚合物如何自动修复微小裂纹

Self-healing polymers contain special microcapsules that burst when a crack forms.
These capsules release liquid monomers that quickly harden and seal the damaged area.
Scientists designed this material to mimic how human skin repairs small cuts.
Unlike traditional plastics, these polymers extend product lifespans without manual intervention.
Researchers test them in car paints, phone screens, and aircraft coatings today.
The healing process usually completes within hours and requires no external tools.
Some versions even respond to UV light or slight heat to trigger repair.
This innovation reduces waste and supports circular economy principles globally.
Engineers are now scaling production to make self-healing materials more affordable.
Ongoing studies explore combining them with biodegradable backbones for eco-safety.