What are the effects of prolonged compression on PVC’s creep resistance?

Mar 31,2025

Abstract: Prolonged compression significantly influences PVC‘s creep resistance, a critical factor in its long-term performance under sustained loads. Creep, the gradual deformation of mater

Prolonged compression significantly influences PVC's creep resistance, a critical factor in its long-term performance under sustained loads. Creep, the gradual deformation of materials under constant stress, is accelerated in PVC when subjected to extended compression. This occurs due to the polymer's viscoelastic nature, which causes molecular chains to slowly realign under pressure, leading to permanent strain.

Key effects include reduced structural integrity, increased stress relaxation, and diminished load-bearing capacity over time. Environmental factors like temperature and humidity further exacerbate these changes. Industrial applications, such as piping and construction, must account for these properties to prevent premature failure. Mitigation strategies include using reinforced PVC blends or designing structures to distribute stress more evenly. Understanding these dynamics ensures better material selection and longevity in engineering projects.

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