Transcription of Plastic Failure through Environmental Stress Cracking
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Plastic Failure through Environmental Stress Cracking
CONSULTANT S CORNERP lastic Failure through EnvironmentalStress CrackingESC, the Plastic killer, is a frequent cause of field failuresBy Jeffrey JansenThe Madison Group, Madison, Wisconsin, USA Environmental Stress Cracking (ESC) is considered a lead-ing cause of Plastic part Failure . It is the prematureembrittlement and subsequent Cracking of a plasticdue to the simultaneous and synergistic action of Stress andcontact with a chemical agent. Because of the frequencyand severity of ESC Failure , it has been nicknamed the plastickiller (see, for example, Figure 1).A principal consideration in the relatively high Failure rateassociated with Environmental Stress Cracking is the wide-spread lack of awareness and understanding of theinteraction between Plastic materials and chemicals, partic-ularly organic-based chemicals, which are so prevalent inmanufacturing, commercial, and household settings. Mostfailures associated with ESC occur through contact with asecondary chemical agent.
CONSULTANT’S CORNER Plastic Failure through Environmental Stress Cracking ESC, “the plastic killer,” is a frequent cause of field failures
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