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- Q920965 subject Q10326370.
- Q920965 subject Q7138888.
- Q920965 subject Q8852125.
- Q920965 abstract "Environmental Stress Cracking (ESC) is one of the most common causes of unexpected brittle failure of thermoplastic (especially amorphous) polymers known at present. Environmental stress cracking may account for around 15-30% of all plastic component failures in service.ESC and polymer resistance to ESC (ESCR) have been studied for several decades. Research shows that the exposure of polymers to liquid chemicals tends to accelerate the crazing process, initiating crazes at stresses that are much lower than the stress causing crazing in air. The action of either a tensile stress or a corrosive liquid alone would not be enough to cause failure, but in ESC the initiation and growth of a crack is caused by the combined action of the stress and a corrosive environmental liquid.It is somewhat different from polymer degradation in that stress cracking does not break polymer bonds. Instead, it breaks the secondary linkages between polymers. These are broken when the mechanical stresses cause minute cracks in the polymer and they propagate rapidly under the harsh environmental conditions. It has also been seen that catastrophic failure under stress can occur due to the attack of a reagent that would not attack the polymer in an unstressed state.Metallurgists typically use the term Stress corrosion cracking or Environmental stress fracture to describe this type of failure in metals.".
- Q920965 thumbnail Crazes1.jpg?width=300.
- Q920965 wikiPageExternalLink modern_methods.html.
- Q920965 wikiPageExternalLink index.htm.
- Q920965 wikiPageExternalLink print.htm.
- Q920965 wikiPageExternalLink description.
- Q920965 wikiPageExternalLink ?p=42;.
- Q920965 wikiPageWikiLink Q10326370.
- Q920965 wikiPageWikiLink Q103382.
- Q920965 wikiPageWikiLink Q1139203.
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- Q920965 wikiPageWikiLink Q163214.
- Q920965 wikiPageWikiLink Q16702447.
- Q920965 wikiPageWikiLink Q182854.
- Q920965 wikiPageWikiLink Q190117.
- Q920965 wikiPageWikiLink Q2033818.
- Q920965 wikiPageWikiLink Q2356542.
- Q920965 wikiPageWikiLink Q2458815.
- Q920965 wikiPageWikiLink Q258158.
- Q920965 wikiPageWikiLink Q3151013.
- Q920965 wikiPageWikiLink Q3181055.
- Q920965 wikiPageWikiLink Q334637.
- Q920965 wikiPageWikiLink Q380677.
- Q920965 wikiPageWikiLink Q5381365.
- Q920965 wikiPageWikiLink Q5468723.
- Q920965 wikiPageWikiLink Q585977.
- Q920965 wikiPageWikiLink Q7138888.
- Q920965 wikiPageWikiLink Q7226547.
- Q920965 wikiPageWikiLink Q79529.
- Q920965 wikiPageWikiLink Q81163.
- Q920965 wikiPageWikiLink Q817136.
- Q920965 wikiPageWikiLink Q825643.
- Q920965 wikiPageWikiLink Q8852125.
- Q920965 wikiPageWikiLink Q898288.
- Q920965 wikiPageWikiLink Q910212.
- Q920965 wikiPageWikiLink Q957852.
- Q920965 comment "Environmental Stress Cracking (ESC) is one of the most common causes of unexpected brittle failure of thermoplastic (especially amorphous) polymers known at present. Environmental stress cracking may account for around 15-30% of all plastic component failures in service.ESC and polymer resistance to ESC (ESCR) have been studied for several decades.".
- Q920965 label "Environmental stress cracking".
- Q920965 depiction Crazes1.jpg.