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 When mentors and students battle it's the team that loses. - Koko Ed [more] |
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| When mentors and students battle it's the team that loses. - Koko Ed [more] |
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#2
10-03-2014, 23:00
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Re: exploding plastic storage tanks
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#3
10-03-2014, 23:11
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Re: exploding plastic storage tanks
So that makes me think, if these tanks can easily become such a hazard, why are they legal? We have our tanks outside, right under our catching mechanism so if something fails, the tanks are in risk of being damaged. However, those are the metal tanks
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#4
10-03-2014, 23:12
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Re: exploding plastic storage tanks
Just doing some rudimentary comparisons with CES EduPack (materials database).
PP seems to generally have higher impact toughness (absorbs more energy when fracturing) than PVC but is slightly lower yield strength. Tensile strength differences are pretty marginal. Probably the biggest draw for PP over PVC is the comparative glass transition temperatures, PP is below freezing while PVC is nearly the boiling point of water. This is a reversible transition that is accompanied by a change in elastic modulus (stiffness), addition when above this temperature the polymer should be more ductile which correlates with PP taking more energy to fracture. |
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