A polypropylene plastic container was subjected to localized infrared irradiation using a halogen point heater, and its behavior during heating was recorded.

Since polypropylene has a relatively low heat resistance, infrared irradiation initiated from the irradiated area caused softening and melting that extended beyond the localized region to the entire container.

This video can be used as a basic evaluation example for examining partial heating processes of plastic components, as well as for material selection and processing condition studies.

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