I don't know
But I am so going to try that.
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tarka_dall Like normal dall, only a bit more spicy, Mon 8 Feb 2021, 22:05,
Reply)
I had a look into it
patents.google.com/patent/WO2017136714A1/en
Requires low/high pressure for degassing and impregnating the wood after the lignin is removed though.
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FeralCatMan Long ads need comments sections, Mon 8 Feb 2021, 23:03,
Reply)
Yep
I guessed that the impregnation would be the difficult bit. I suspect it will need to be a very low viscosity resin as well. Every time I tried using vacuum pumps at work for de-gassing experiments I'd get shouted at for putting dodgy gases through the pump which could affect the oil and bugger up subsequent experiments.
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tarka_dall Like normal dall, only a bit more spicy, Tue 9 Feb 2021, 10:54,
Reply)
Given the problem of removing the lignin from a solid block as well.
Using Kraft paper pulp it would be easier to mould/bleach as well as impregnate.
Not terribly 'green' given the chemicals and energy required and not recyclable in most cases.
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FeralCatMan Long ads need comments sections, Tue 9 Feb 2021, 14:31,
Reply)
WELCOME TO THE FUTURE
I swear some days it feels like we're one small step away from becoming the Vorlons.
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brb man-child cuck corporate supplicant fuck, Mon 8 Feb 2021, 22:29,
Reply)
step 1: remove most of the wood
step 2 replace the 90% of structural material that you've dissolved with a marine epoxy that goes transparent in UV
step 3: put it in the sun
congratulations, you now have a transparent piece of epoxy. In the future you may even make windows out of it if people ever start preferring plastic windows
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cumquat may will not be commenting further on the allegations, Tue 9 Feb 2021, 0:47,
Reply)
I see your point
But are the "most" and "90%" based on actual data? The properties of a cellular structure impregnated with resin could be very different to just resin.
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tarka_dall Like normal dall, only a bit more spicy, Tue 9 Feb 2021, 11:06,
Reply)
once you remove all the lignin, and fair whack of the celluose and hemicelluse, can you still call it wood?
if you got a corpse, let the maggots eat all the flesh and put the skeleton in a chemical bleach it until was all degraded, then covered that skeleton with epoxy, would you say "hey, we've made a transparent human"? I suspect they're using the term because it sounds more green than what it is
you can add a lot of thing to epoxy to change its properties, no doubt. Fiberglass springs to mind. I'm sure a lattice of degraded cellulose has some effect. But they compared its thermal properties to glass. Id like to see how it performs against similar epoxy polymer sheets to see if it's worth the fuss
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cumquat may will not be commenting further on the allegations, Tue 9 Feb 2021, 21:42,
Reply)
I read the article and you have fundamentally misunderstood what was written in it.
1: Painting 1mm strips of wood with h2o2 is not 'removing most of the wood' or dissolving it. Painting wood with h2o2 is an additive process.
2: Painting white stained wood with marine epoxy is not replacing dissolved structure, it's filling in natural depressions that you find in wood.
3: The wood, h2o2 and marine epoxy combine, you delightfully confident man.
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brb man-child cuck corporate supplicant fuck, Tue 9 Feb 2021, 14:47,
Reply)
they said it removes all the lignin, so it's not an "additive process", dingus
it depolymerises the lignin, breaking down the long plant polymers and releasing oxygen and a bunch of short chain ketones that would evaporate, which is why they stand them up and hopefully don't breathe the fumes.
(edit) just had a look at the lab data ((https://www.mdpi.com/2073-4360/11/5/776/pdf). The hydrogen peroxide actually removes a fair bit of the cellulose and hemicellulose along with the lignin. It states lignin removal is "from 29% of weight down to 2.9%". You'd apologise for your unwarranted superciliousness if you had the least bit of class about you, brb. pretty much everything you stated is wrong
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cumquat may will not be commenting further on the allegations, Tue 9 Feb 2021, 20:57,
Reply)
"replace the 90% of structural material that you've dissolved"
how much of the wood is removed?
(, Wed 10 Feb 2021, 9:33, Reply)
look up the percentages yourself if you're fascinated in knowing the answer
i feel like Ive defended my comic reply enough to would-be pedants. Sometimes I wonder what some are doing on a comedy website
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cumquat may will not be commenting further on the allegations, Wed 10 Feb 2021, 10:23,
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is that that what you claim after being wrong? how convenient
is your whole account one long troll dedicated to dimwitted argument? I'd say well played sir, for such a sustained performance
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cumquat may will not be commenting further on the allegations, Wed 10 Feb 2021, 20:50,
Reply)
Doesn't cellophane count as "transparent wood"
It's made from wood and you can see through it.
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notoolsovernight you're all luvvly an' 'orrible, Wed 10 Feb 2021, 15:11,
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Pretty much, difficult to make it rigid and tear resistant though.
Old technology doesn't get much grant money though.
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FeralCatMan Long ads need comments sections, Thu 11 Feb 2021, 2:18,
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