A polyethylene (PE) bottle cap was locally heated using a halogen line heater, and its thermal deformation behavior was observed.
Polyethylene is a thermoplastic widely used in packaging materials, containers, and bottle caps. During non-contact infrared heating, the irradiated area rapidly increases in temperature, resulting in softening and deformation.
Polyethylene is a crystalline polymer that softens and melts rapidly near its melting point. This video demonstrates the deformation behavior caused by temperature rise during localized infrared heating.
Line-focused infrared heating is utilized in various industrial applications, including preheating before plastic molding, thermal processing, heat sealing, and heating tests for recycling processes.
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