Phos/Mk acid Geopolymer😯👌

[@DominusFlagellum]

These are great samples. Well done. A big congratulations!

[@m3sca1]

Thanks, they seem like a great approach, without using any waterglass or alkali. I really like it. Am pondering a combo with both acid and alkali to shift pH and force a quick set. Much like my earlier ash fig juice works.

[@haniamritdas4725]

Fantastic! Thanks for sharing. Since our last exchange I have learned a bit about PCM, phase chznge materials, from NightHawkinLight channel here on commie tube. Xantham gum in that case helps the phase change material stabilize and instead of separating as it thaws. Like geopolymers and ceramics, the phase transitions from liquid to solid are related chemically. So the goal reached by NightHawkinLight was to chemically target the "freezing" point of the material at 65°F (18°C). So by cooling below 65 it stores cold by supercooling, and absorbs heat while maintaining 65° melting point temp until thawed. Equalizing highs and lows around that temperature passively, as long the nightime temps are below 18° So anyway. Your direction has always inspired me, and this is very satisfying to see your progress. The magic of acid and chemical chains. Heh, "chain reactions" in a manner of speaking. Great! Cheers

[@m3sca1]

i saw that nighthawk vid, very interesting, be sure to watch the Kriven video i added in the description, if you haven't already. it covers the concept of lowering the firing temperature, and there is a lot of very important info if you want to undertand geopolymers better

[@ThomasAndersonbsf]

wait why did I think you had phosphoric acid and milk compounds to make a hard plastic originally,??? also will be interesting to know if it lowers the temp to fire the clay to a ceramic state, and if the ceramic is more durable than plain pure fired ceramic (the acetic, oxalic, and citric acid mix is what I used and the clay I used was terracotta, which fired like 300 degrees lower than typically needed to vitrify it so it would not go back to moldable clay when wet, and was considerably more durable from deformation and dropping than the plain clay that I made with it as a control. Not sure if it was due to it being able to be fired at the lower temp or if it was a polymerized structure left over from forming off of the carbon based acid compounds maybe, would have to try firing some to the exact same temps with and with out to test that.) how much of the clay was used vs the 50g phosphoric acid, and 20g of water? not really following what the actual recipe was, Guess I will have to go look up the prof Davidovits maybe :) *I am actually interested in this partially due to the phosphoric acid additive as I had planned on trying to swap out something in another compound with phosphoric acid to leave behind the phosphor as a dopant for electrical properties.* :)

[@m3sca1]

the recipe details are in the description of the video. needs to be calcined clay to around 800°C. yes the "firing temp" is lowered. To around 80°C for curing. Look up Trudy Kriven on Prof. Davidovits channel on YT. There is a long video she talks all about the crossover of geopolymer and ceramics. Actually I think I will add the link to that video into the description since it is her research that lead me to understanding this acid pathway better. From what your comment I feel you will get a lot from it and may be able to add to the research with your experiments. Oxalic, citric, vinegar... I see you have been paying attention.🤓👍

[@ThomasAndersonbsf]

@@m3sca1 ok thank you, and as for attention, lol I have been looking into this for quite a while because I still think the pyramids are made both ways, depending on the era, and the more crude cut stone methods were done after a mass die off of those who had the knowledge of geopolymers, because for some reason they were making a version of semiconductive geopolymers and accidentally made massive air collection diodes, that eventually lead to discharge while the ones hoarding the knowledge were electrocuted from these pyramids acting as a sort of aquifer capacitor filling up, (like maybe using a compound they would take internally to help with gas or something and external casing stones having something they would spread on their skin to cure skin aliments leading to that diode effect once the water in the below ground areas wicked up into the pores of the blocks, SO, I had been experimenting using that research before I test out my idea of contaminating the compounds and then cure them to see if we get that effect on a smaller scale to test my theory :) (could be useful for making batteries and other sorts of tech at home that harvest energy and use it locally :) who knows.

[@m3sca1]

ever tried to make an electret block by providing a High voltage field during curing?

[@ThomasAndersonbsf]

@@m3sca1 not yet but that is on the list, Plan is to try using xylene dissolved polystyrene from styrofoam, and let it dry on something while a high voltage is maintained on two plates around it and see how effective it is, as opposed to heated to melt a plastic or glass to make an electret, Got plans on that and graphene structures for thermal to electrical power generation.

[@marigeo24]

Did you learn what you know about geopolymers from Davidovitz’s book?

[@m3sca1]

i don't have Prof. Davidovits book. i have been following his work for 20+years and have a friend thay shared this recipe from his book. some older versions are available as pdf online. also highly recommend watching the talk given by Dr Trudy Kriven.

[@watevs8772]

I'm trying out pure metakolin and 10 molar phosphoric acid solution (50/20). I did one but heated it too soon and it cracked up. This time I'm curing it in a sealed bag with some water to keep humidity close to 100% relativity. then i'll dry it and then heat it I guess. I'm also trying another batch with 1.5g of NaOh and 1.5g of magnesium sulphate in 15g of water and 15g of metakaolin. It should have been magnesium chloride but I'll try this because it's what i had and the sulphate ion might give it some benefits (acid resistance) The mixture of magnesium sulphate or chloride forms magnesium hydroxide with the NaOh in solution. I'm doing this to create a membrane for split cell electrolysis. (cationic exchange membrane) Well done for your work !

[@m3sca1]

you should be to heat to 60°C, then 80°C over a few hours. you want to keep the water in when it is heated, good work btw😀👍

[@watevs8772]

@@m3sca1 Thanks , exactly mate i needed to keep it moist. i'm going to let it cure in the humid environment for a couple of days and then i'll try putting it on a raised platform in a saucepan of water with a lid and slowly bring up the temp so it doesnt touch the water but gets the warmth. Anyway... lol . Hi from England !

[@m3sca1]

im trying it with carbon nano tubes. today😀💪 double boiler sounds good. are you on twitX? i can share the temp chart for its exothermic events during curing temperatures...

[@watevs8772]

Replying to myself to let others know it didn't work. Its needed more sodium hydroxide. It should be an 8 to 12 molar solution which for a 15 gram test batch of metakaolin I'm trying a 10 molar solution which is 7 grams Sodium hydroxide in 17.5 grams of water.