> After use, the material can simply be ground into powder and pressed into a new shape while heated, causing the bonds to rearrange themselves. This is known as thermomechanical recycling.
> it can also be chemically dissolved
I wonder whether either of these opens up any practical durability issues for this variety of epoxy.
This is a presser (disguised as a science piece) from the company making the product; take it all with a grain of salt.
Also, epoxy already contains harmful endocrine disruptors, adding forever chemicals like those found in almost all flame retardants is just adding fuel to the fire (pun not intended).
OT: It's difficult for me with my imperfect vision to read this web page because of inadequate contrast between body-text and background. Firefox dev tools measures a 3.52 contrast ratio — WCAG guidelines recommend 7:1 (AAA rating) or 4.5:1 (AA rating). However, viewing the page in reader mode seems to work as a solution.
I think that was a core plot point of a series of books by Niven I think. Humans are on a planet that has almost no phosphorus or maybe potassium in it's biosphere. Humans have to take it artificially by sprinkling a special salt on every meal. But it's very limited and expensive and so a significant part of the population are mentally handicapped to lesser or greater degrees, generation after generaion.
Ah, Destiny's Road, and it was Potassium.
"...dooming humanity to a slow mental extinction."
When a general study was made back in the 1970s of the limits of substitutability and recyclability of mineral resources, it was found phosphorus likely dictates the minimum amount of mining needed in steady state. It occurs at an average concentration of about 0.1% in the continental crust.
I worry just a bit about this in reference to LFP batteries.
This looks like recycling fetishism. It's perfectly fine to burn such materials, if they were obtained from non-fossil sources to start with, so there would be no net CO2 addition to the atmosphere.
There are two recycling mechanisms:
> After use, the material can simply be ground into powder and pressed into a new shape while heated, causing the bonds to rearrange themselves. This is known as thermomechanical recycling.
> it can also be chemically dissolved
I wonder whether either of these opens up any practical durability issues for this variety of epoxy.
This is a presser (disguised as a science piece) from the company making the product; take it all with a grain of salt.
Also, epoxy already contains harmful endocrine disruptors, adding forever chemicals like those found in almost all flame retardants is just adding fuel to the fire (pun not intended).
While this is just a press release its about the academic paper, which is open access https://www.sciencedirect.com/science/article/pii/S138589472...
It doesnt seem like any of the authors are making this commercially currently
It appears we got a relevant XKCD just in time: https://xkcd.com/3194/
OT: It's difficult for me with my imperfect vision to read this web page because of inadequate contrast between body-text and background. Firefox dev tools measures a 3.52 contrast ratio — WCAG guidelines recommend 7:1 (AAA rating) or 4.5:1 (AA rating). However, viewing the page in reader mode seems to work as a solution.
when I hear of industrial uses of phosphorus my ears prick up since phosphorus is a key limiting factor for life.
A world where this actually became industrially very successful combined with a lack of recycling could potentially add large new sink for phosphorus.
In general, be careful when creating a process which locks meaningful amount of phosphorus out of the biosphere.
I can't imagine this approaches how much is used in agriculture for fertilizer.
I think that was a core plot point of a series of books by Niven I think. Humans are on a planet that has almost no phosphorus or maybe potassium in it's biosphere. Humans have to take it artificially by sprinkling a special salt on every meal. But it's very limited and expensive and so a significant part of the population are mentally handicapped to lesser or greater degrees, generation after generaion.
Ah, Destiny's Road, and it was Potassium.
"...dooming humanity to a slow mental extinction."
Great.
When a general study was made back in the 1970s of the limits of substitutability and recyclability of mineral resources, it was found phosphorus likely dictates the minimum amount of mining needed in steady state. It occurs at an average concentration of about 0.1% in the continental crust.
I worry just a bit about this in reference to LFP batteries.
This looks like recycling fetishism. It's perfectly fine to burn such materials, if they were obtained from non-fossil sources to start with, so there would be no net CO2 addition to the atmosphere.
An adjacent design validation question on a green chip factory and product design:
Will Phytic acid in Lignin-Vitrimer encase burning CNT carbon nanotubes in a phosphorous char cage, this preventing health hazards and combustion?
This says "phosphorous epoxy".
FR4 silicon PCBs are N-doped and P-doped.