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Production & Quality 15 visualizaciones

EEA Stress Cracking

Fenómeno del problema
EEA products crack in <100h under the action of stress + chemicals
Análisis de la causa
Under stress, EEA molecular chains are attacked accelerated by chemicals; environmental stress cracking is a typical failure mode of polyolefins
Solución
1) Reduce product internal stress by annealing treatment; 2) Select high-molecular-weight EEA to improve ESC resistance; 3) Avoid contact with aggressive chemicals
Conclusión clave
Stress cracking is caused by stress-accelerated chemical attack; annealing and high MW are key
EEA stress cracking environmental stress annealing treatment high molecular weight

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