@@janjeikobu5163 100 mL water, 15mL starch, 10mL vinegar, 10mL glycerin. Just multiply/divide all these numbers by the same amount for different quantities of plastic.
Hi, thank you so much for this video, I saw your recent video on the bio plastic bag with completely no air bubbles, was wondering if there was a way to make a bio plastic with this recipe but with little to no air bubbles? Thank you!
Hi, may I ask how you achieved that kind of consistency for your cornstarch bioplastic? I'm also researching cornstarch-based bioplastics, and I tried doing the same, but the results weren't great. Since I'm limited with the materials such as a molder, I tried using wax paper instead to place my mixture. However, cracks keep appearing☹
Cracks are usually caused by insufficient glycerin and/or water. If it still cracks, maybe try duct taping the waxed paper to a piece of cardboard so it doesn't shift during the drying period.
@@gilchristacquah2368Hi, unfortunately, it did not work for me :(( Perhaps my method of doing it was incomplete in some way. If you're trying to do it, I suggest you try using a molder to ensure better outcomes
A glycerol substitute you might have at home is honey. Depending on the viscosity of your honey, you might have to increase the amount (try doubling it, for example). Regarding the gelatin, I've never tried that; if you do, let us know if it works!
Hello, what do you think should I add to the mixture to make the plastic hard enough to make a straw? I'm planning to make a bioplastic drinking straw. Thank you!
When you see a recipe expressed in 'parts' that means you are looking at the recipe 'ratio', which is supposed to help you scale the quantity up and down. Example: let's say you don't have measuring spoons at home and all you have is a small coffee cup. If the ratio called for 3:1:1:1, that would be 3 cups of water, 1 cup of starch, 1 cup of vinegar, 1 cup of glycerin. Then, let's say you wanted a bioplastic that was double the size. You can use a coffee cup that is double the size, or, following the same ratio 3:1:1:1 all you need to do is double the numbers, so that would be: 6 cups of water, 2 cups of starch, 2 cups of vinegar, 2 cup of glycerin.
This recipe has starch as the main ingredient, which is a powdery white substance like flower; it doesn't work with other solid organic matter like fruit.
Hello! Can I ask you something for our research project? We made corn-based bioplastic and we dried it up using the oven. We followed your measurements in your youtube video however; if we put it in the open for an hour at 125C, it forms cracks. How can we fix this please?
@@jutstin adding water to the recipe will most likely solve the issue. If not, let it dry and compare the results with these samples: th-cam.com/video/1hDXsOrf0AY/w-d-xo.html maybe that can help you identify the issue.
@@giestas also even though i used the same amount for each ingredient mine was like really thick even when spreading it on a bigger surface, ill try it out tho
i did it more than 10 times, with or without color, dry on oven or in room temperature and every single time, it cracks 😭 i did it the same as your reciep. i dont have more time to present my projekt. can you help me please
Looks good! What other fruits/vegetables can I use instead of potato or cornstarch? We're trying to find a fruit that hasn't been turned into bioplastic yet. We're hoping that we can find a fruit that is similar to the needed content with the potato or corn starch content. Thanks!
Sir, why is my corn starch based bioplastic is still soft and the edges are crumpled when i rrmoved it from petri dish after drying? I dried mine for 6 hours in dehydrator at 45°C ;(
Even with a dehydrator, 6 hours is not enough, you'll probably need at least 24h. You can raise the temperature to get shorter times, but that'll introduce a lot of bubbles in the bioplastic.
Hi, may I ask what could have been the reason why there was a red spot that appeared during the fourth day in the cornstarch bioplastic mixture? The red spot got bigger on the eighth day. Also, the mixtures of bioplastic made with cornstarch and potato starch have not yet really formed well because they have not hardened yet. What does this mean?
It might take a long while for all the water to evaporate from the bioplastic, so if it hasn't "hardened" after 8 days, wait a bit longer and check if it's gradually drying. The red spot is a mystery :/
I've seen some applications of pectin as a waterproofing agent for leather, but I haven't found a recipe for a homemade version. You can use lemon juice yes. If possible, filter it with a paper coffee filter; but even then it might still take plenty more time for the bioplastic to dry.
@@giestas thanks for your reply! another quick question, what would you recommend on adding or reducing from the mixture to accelerate the drying without an oven?
Is this bag is degradable naturally. Some says that, this needs oxygen/sunlight to degrade.If it is buried in soil it won't get degraded is it true.. Please say,Is this degradable natural when it gets buried in soil?
Hi I would like to ask also, in our research we are going to use mango peel to make bioplastic, will it work if we are going to use the same ingredients as you use and mix it with mango peel? And how many days it take for drying?
If you use the recipe in the video and add the mango peel already dried, then the peel will be an inert material, so it shouldn't change the drying time.
Hello, thank you for making this video! Do I have your permission to use the video clip of the plastic handling in a presentation I am making about bioplastics? I don't want to infringe on copyright and wanted to check with you first!
@@okpegboropommy2480 maybe try letting it set for 48h minimum at place that's as dry as possible, then put it in the oven for 2 hour periods in the lowest temperature (fan on, if that's an option).
hi, my research is about reinforcing bioplastics using eggshells and i'm planning on using the exact measurements of ingredients you have used. however, i'm still quite unsure on how much eggshell powder should i use. should i use a 1:1 ration with the cornstarch? thank you so much!
Just guessing here, but I would say 1:1 is too much. Maybe star with a quarter of that on the first test, then go up from there? Let us know how it works out :)
I HAVE A QUESTION (Research Purposes): Why did my cornstarch-based bioplastic develop mold while drying? I recently attempted to make this type of bioplastic, but after two days, it became moldy. Should I cover the bioplastic while it dries or no?
hi, I tried your recipe and I got a beautiful result, which dried in less than 24 hours!!! but every time all the sides come out and turn up and curl. Can you tell me why and if there is a solution?
@@elka4243 it takes you 10min continuous... if you have added more and made the solution saturated, then it will take longer time... that's why keep adding step wise rather than a huge amount initially...
Awesome video! I just wanted to know why you used different vinegar, glycerin, and water measures than in your casava recipe. Can this videos measurements be universal and replaced with any starch?
Good day again, sir! I have another question. Is it okay if I use oil to cover the metal tray? Because the mixture is sticking to the tray and I can't peel it out. Does it have the same results with using a silicone mould?
Hi Giestas, Another Question, So I’ve tried out your recipe and i found many cracks appearing in just a single day, so I modified the recipe to add more water and glycerin and did 2 batches, but i still found cracks. I looked through some tutorials and i found most people layering the plastic paper thin, however my plastic is 5mm thick, could this be the problem I’m facing? Thanks in Advance
5mm should be fine. Most often cracks appear when there's something wrong with the amount or quality of glycerin. If you need to change the recipe, maybe look at these tests first: th-cam.com/video/1hDXsOrf0AY/w-d-xo.html
@@giestas Hi Giestas! Thanks for the Quick and helpful response, just like you predicted, thicker batches have cracked, but the paper / polythene thin batches are still perfect, so yeah thanks for all help and tip. I’m actually doing this for my grade 8 Science Project, Just letting you know :) Cheers
If one were to have industrial equipment that could create a more concentrated mixture and able to push it into a mold. Then have it dry in an oven. I wonder what the possibilities are.
Please share even if you get terrible results!! There's a lot that can be learnt from failed experiments and somebody out there could get an important new idea!
i owe u my research paper, thank you so much for this you are a life saver
dude what is the universal ratio for the ingredients? like for every tablespoon of cornstarch is every tablespoon of everything else? need help lol
@@janjeikobu5163 100 mL water, 15mL starch, 10mL vinegar, 10mL glycerin. Just multiply/divide all these numbers by the same amount for different quantities of plastic.
what is your research paper all about?
We’re u able to produce the bioplastic film
@@nata5212i cant make it💀 if anyone here did pls help
I owe you our research paper tysm love u
Keep it going we need more
Loving these videos
The quality of this video is top notch! Really shows how hard you must have had to work on this. Thank you so much for putting this out💜💜😭
Hi, thank you so much for this video, I saw your recent video on the bio plastic bag with completely no air bubbles, was wondering if there was a way to make a bio plastic with this recipe but with little to no air bubbles? Thank you!
Hi, may I ask how you achieved that kind of consistency for your cornstarch bioplastic? I'm also researching cornstarch-based bioplastics, and I tried doing the same, but the results weren't great. Since I'm limited with the materials such as a molder, I tried using wax paper instead to place my mixture. However, cracks keep appearing☹
Cracks are usually caused by insufficient glycerin and/or water. If it still cracks, maybe try duct taping the waxed paper to a piece of cardboard so it doesn't shift during the drying period.
@@giestas thank you so much for the tip! I'll try doing this! ^^
@@mono.latte07 did it work?
@@mono.latte07 were u able to produce it?
@@gilchristacquah2368Hi, unfortunately, it did not work for me :(( Perhaps my method of doing it was incomplete in some way. If you're trying to do it, I suggest you try using a molder to ensure better outcomes
How to check which starch based film effective and what are the test to check the perfect bio plastic quality
Some people use agar agar instead of glycerol
So can i use gelatin instead?
A glycerol substitute you might have at home is honey. Depending on the viscosity of your honey, you might have to increase the amount (try doubling it, for example).
Regarding the gelatin, I've never tried that; if you do, let us know if it works!
You can check out honey as a substitute to glycerin here: th-cam.com/video/lU1RiQTmLuA/w-d-xo.html
Can I replace vinegar by lemon juice
You can do it without, as in this case: th-cam.com/video/XBjUPxaGcZQ/w-d-xo.html
Thank you for this video! I was wondering… What is actually the function of the vinegar?
See the F.A.Q. in the description.
How can prevent the bubbles from appearing?
I don't have a good method yet; I tried a torch, like you'd use in resin, but I can't get it to work.
At what stage can we add food colour?
Here is a video on the colored version: th-cam.com/video/4LY9Pvwy7yI/w-d-xo.html
Why it's stock up when I putted in the tray and cracked when I dried it under the heat of the sun?
Maybe too little glycerin?
@@giestas thank you❤️
Will the bioplastic then be waterproof or will it revert back into a gel if exposed to water?
Here is a test on that: th-cam.com/video/DGp1-hdExMY/w-d-xo.html
Hello, what do you think should I add to the mixture to make the plastic hard enough to make a straw? I'm planning to make a bioplastic drinking straw. Thank you!
I wish I could tell you, I haven't managed to make a rigid sample with a specific shape.
Does the mixture hardens quickly of you add cold water or room temperature water to it?
Hi. How did you dry your film? Our bioplastic keeps getting white molds when drying.
These samples were dried at room temperature, but if you live in a high humidity environment it might be more difficult.
Is this biodegradable under natural conditions unlike PLA?
Here: th-cam.com/video/oub-YroMsR0/w-d-xo.html
Can we kept it in refrigerator for fast result of getting hard
The refrigerator won't do much, but the oven may help: th-cam.com/video/XBjUPxaGcZQ/w-d-xo.html
Hi, I was wondering if any of the plastics had a strong scent to them. Or were they unscented?
After drying, they're pretty much unscented.
Hi, thank you for this video. I am experimenting with bioplastics with potato starch. It won't seal. Is there any way to fix it?
Hi i would like to know what u mean by parts is it spoon or cups thank u
When you see a recipe expressed in 'parts' that means you are looking at the recipe 'ratio', which is supposed to help you scale the quantity up and down.
Example: let's say you don't have measuring spoons at home and all you have is a small coffee cup. If the ratio called for 3:1:1:1, that would be 3 cups of water, 1 cup of starch, 1 cup of vinegar, 1 cup of glycerin.
Then, let's say you wanted a bioplastic that was double the size. You can use a coffee cup that is double the size, or, following the same ratio 3:1:1:1 all you need to do is double the numbers, so that would be: 6 cups of water, 2 cups of starch, 2 cups of vinegar, 2 cup of glycerin.
Can I use a laboratory oven (about 90 celsius) to dry it quickly?
Probably yes, but you can check the effect of different temperatures here: th-cam.com/video/XBjUPxaGcZQ/w-d-xo.html
Can i make bioplastic from papaya with this same procedure? Plz reply
This recipe has starch as the main ingredient, which is a powdery white substance like flower; it doesn't work with other solid organic matter like fruit.
Hello! Can I ask you something for our research project? We made corn-based bioplastic and we dried it up using the oven. We followed your measurements in your youtube video however; if we put it in the open for an hour at 125C, it forms cracks. How can we fix this please?
Cracks usually appear when you don't have sufficient glycerin.
i used glycerin same as the reciep😢
mine is so thick and hard to spread evenly, i used the exact ratio and ingredients u used and at the end it turned out so bad, tips?
after 30 seconds mine looked like urs after 4 mins, maybe my pan was too hot??
Did you use potato or corn starch?
@@giestas i used potato
@@jutstin adding water to the recipe will most likely solve the issue. If not, let it dry and compare the results with these samples: th-cam.com/video/1hDXsOrf0AY/w-d-xo.html maybe that can help you identify the issue.
@@giestas also even though i used the same amount for each ingredient mine was like really thick even when spreading it on a bigger surface, ill try it out tho
Do I have to use the stuff in the video like the cooking part where you put a bowl above the boiling water??
Does keeping it in oven get it ready faster and how much time is needed
At lower temperatures like 70ºC (158ºF) yes, ideally with fan on. More than that and the oven will introduce a lot of bubbles in the bioplastic.
Is this plastics are stretchable like polyethylene ?
Maybe what you have in mind is more like this: th-cam.com/video/Us9XAzjRNzE/w-d-xo.html
i did it more than 10 times, with or without color, dry on oven or in room temperature and every single time, it cracks 😭 i did it the same as your reciep. i dont have more time to present my projekt. can you help me please
What type of surface did you use to spread the bioplastic?
Hi, my oven can go as low as 20 Celcius (but it has no fan), what is the most recommended temperature to dry it?
Most dehydrators go between 30ºC and 80ºC, so maybe try something in the middle like 50ºC?
@@giestas i am going to try 70 Celcius first, because i need it to be finished a bit faster, i am watching the oven for each hour
Nifty!
Is it highly flammable?
can i ask do you have a specific kind of glycerin?
I used common vegetable glycerin.
Looks good! What other fruits/vegetables can I use instead of potato or cornstarch? We're trying to find a fruit that hasn't been turned into bioplastic yet. We're hoping that we can find a fruit that is similar to the needed content with the potato or corn starch content. Thanks!
I've only tried these ones and cassava, but I'm sure there are many more options out there to be explored...
Sir, why is my corn starch based bioplastic is still soft and the edges are crumpled when i rrmoved it from petri dish after drying? I dried mine for 6 hours in dehydrator at 45°C ;(
Even with a dehydrator, 6 hours is not enough, you'll probably need at least 24h. You can raise the temperature to get shorter times, but that'll introduce a lot of bubbles in the bioplastic.
@@giestas hii, i already dried it for 24 hrs with 45-50°c and its all good hehe
@@giestas thank youuu
@@bamtori6937hello were u able to produce the bioplastic film pls
Hi, may I ask what could have been the reason why there was a red spot that appeared during the fourth day in the cornstarch bioplastic mixture? The red spot got bigger on the eighth day.
Also, the mixtures of bioplastic made with cornstarch and potato starch have not yet really formed well because they have not hardened yet. What does this mean?
It might take a long while for all the water to evaporate from the bioplastic, so if it hasn't "hardened" after 8 days, wait a bit longer and check if it's gradually drying.
The red spot is a mystery :/
@@giestasHi, can you dry it quicker? Like microwave or oven? Thank you! This is really usefull! 😁🤗
@@nikola.acimovic the latest video is about drying in the oven: th-cam.com/video/XBjUPxaGcZQ/w-d-xo.html
how hot should the heater be?
Enough for the water to simmer.
Do these dissolve in water? and are these edible?
th-cam.com/video/DA6U_lJMM3w/w-d-xo.html
How do you prevent folds from the edges when the bioplastic is in the drying stage?
The edges always end up with a few imperfections and I cut them in the end.
@@giestas thank you so much
I've seen people make cool jewelry with bio resin would you suggest this recipe could work?
Hmm... I'm afraid not. You'd need something more solid I guess, whereas this is more suitable to make thin flexible films.
What is the concentration of glycerine used
In this recipe I use pure glycerine, not a solution of glycerine in water.
Hi, such a great video
Just want to clarify first, is the bioplastic made waterproof or can support things such as groceries or not yet?
I haven't made strength tests yet. About the water resistance, I made some experiments: th-cam.com/video/DGp1-hdExMY/w-d-xo.html
Good opportunity nice 🙏
But which starch is best
Potato. Ya. Corn
If you need the surface to be smooth, corn starch might be a better option.
Se pueden realizar botellas ??
I don't think so, check the water resistance here: th-cam.com/video/DGp1-hdExMY/w-d-xo.html
Hi i have a question. Can i dry it in the oven?
Here: th-cam.com/video/XBjUPxaGcZQ/w-d-xo.html
Hello, is this water soluble??
Is they use sea water for steam the water path ? Which type of water u used for stemed the water ?
I just used regular tap water during the whole process.
Is there any other alternative for glycerin - couldnt get it here at my place 🤭
You can use honey instead, check it out here: th-cam.com/video/lU1RiQTmLuA/w-d-xo.html
30ml starch or grams?
what is the use of Vinegar?
It breaks the molecular structure of the starch, which changes into longer chains (polymer).
Should we just keep it to set
It'll dry at room temperature if you just leave it yes, if that's what you mean.
Hi i actually wanted to make biodegradable plastic bottle and i want to know what to add to make it stiff?
Watch this video to see a more stiff example th-cam.com/video/1hDXsOrf0AY/w-d-xo.html
Hi! May I know if bioplastics harden? We are currently making a bioplastic brick made from the almost the same ingredients you utilized. Thank you!
It'll be hard if you don't introduce the plasticizer (in this case, glycerine). The trouble is it'll deform heavily while drying.
@@giestas will it not harden though despite the presence of glycerin? By the way, thank you so much for your response!
@@wilbertgutierrez2267 Glycerine makes it flexible, but I've only tried making thin films, so I can't be of much help about solid blocks like bricks.
What is the ideal temperature and time if I use an oven?
th-cam.com/video/XBjUPxaGcZQ/w-d-xo.html
do you expose the bioplastic to the sun or you just put them in a room
These samples were dried at room temperature.
This video is very nice 👍👍
I have a dought..
Is this bioplastic is suitable for packaging the liquid items?
You can see a test in this video: th-cam.com/video/DGp1-hdExMY/w-d-xo.html
great video!
have you ever tried to use pectin to waterproof the plastic?
also, do you think that lemon juice can make a substance for the vinegar?
I've seen some applications of pectin as a waterproofing agent for leather, but I haven't found a recipe for a homemade version.
You can use lemon juice yes. If possible, filter it with a paper coffee filter; but even then it might still take plenty more time for the bioplastic to dry.
@@giestas thanks for your reply!
another quick question, what would you recommend on adding or reducing from the mixture to accelerate the drying without an oven?
The less glycerin you had, the faster it'll dry (but the more rigid the plastic will be)
Hi! I was wondering for our capstone, if i added pectin to the mix how much should i add?
Just a guess: maybe start with 2% pectin?
@@giestas thanks! 😊
How did you dry it Sir.??
It was dried at room temperature; in hot weather it might take less then a week, in the cold it might take a bit more.
Is this bag is degradable naturally.
Some says that, this needs oxygen/sunlight to degrade.If it is buried in soil it won't get degraded is it true..
Please say,Is this degradable natural when it gets buried in soil?
I have some samples buried on a vase with a plant and I'm planning to dig them up soon!
May I ask if there are alternatives for glycerol? Can we use coconut oil instead? Or maybe even honey?
Honey can work, I have a video on some tests: th-cam.com/video/lU1RiQTmLuA/w-d-xo.html
Hi I would like to ask also, in our research we are going to use mango peel to make bioplastic, will it work if we are going to use the same ingredients as you use and mix it with mango peel? And how many days it take for drying?
If you use the recipe in the video and add the mango peel already dried, then the peel will be an inert material, so it shouldn't change the drying time.
Hi! Thank you for this video. What material is the mold where the bioplastic is placed for drying?
It's a common silicone mold.
Hello, thank you for making this video! Do I have your permission to use the video clip of the plastic handling in a presentation I am making about bioplastics? I don't want to infringe on copyright and wanted to check with you first!
Go for it! :)
is it ok to dry it using heat of sunlight? or is it better to dry ith in a room temperature with a fan on? I don't have a dehydrator
I never tested that, but I would guess it's ok to dry it in the sun.
Is there any results to your bioplastic?
Hello! May I ask what type of glycerin did you use in the video? There are so many types and brands, and I don't know what to choose.
I don't have a specific brand to recommend, I just go for common vegetable glycerin.
@@giestas thank you so much!
Is this edible, like if its allowed to eat? 😅
Here is an edible bioplastic project: th-cam.com/video/Brv01vJZ0zY/w-d-xo.html
is this bioplastic water soluble ?
I made a test:
th-cam.com/video/DGp1-hdExMY/w-d-xo.html
and one more is on the way.
hello is it possible to embed seeds along the making of that bio plastics?
since we aim to have a plantable bio bag or something
Small seeds, sure. What I don't know is if the seeds can be damaged by the temperature of the bioplastic coming from the stove.
Nice video! Whats the difference of using glycerin vs. Glycerol?
Two names for the same substance. The designation "glycerin" might be more common in household applications.
Please how did you dry your plastic .?? Is it sunlight or oven .??
I let it dry at room temperature. A dehydrator speeds things up, of course. A common oven not so much.
@@giestas it's always rainy over here , and I really need to get it done within at most a week time ..!!
@@okpegboropommy2480 maybe try letting it set for 48h minimum at place that's as dry as possible, then put it in the oven for 2 hour periods in the lowest temperature (fan on, if that's an option).
@@okpegboropommy2480 if you put it in the oven too soon, or at a temperature that's too high, it'll dry but develop a lot of bubbles.
What is the thermal stability of this bioplastic?
Good question! How can I test that?
By heating the plastic at different temperature ranges
Drying can also be done with microwave oven?
I haven't done that in a long while, but if I remember correctly, it doesn't help much and introduces a lot of bubbles.
have you tried using banana peel starch?
Tried? Yes.
Gotten decent results? Not really.
Haven't found a proper way of shaping it during the drying period.
Cool
hi, my research is about reinforcing bioplastics using eggshells and i'm planning on using the exact measurements of ingredients you have used. however, i'm still quite unsure on how much eggshell powder should i use. should i use a 1:1 ration with the cornstarch? thank you so much!
Just guessing here, but I would say 1:1 is too much. Maybe star with a quarter of that on the first test, then go up from there?
Let us know how it works out :)
@@giestas thank you so much!! i'll gladly share my output once i've done it
@@maryjane2079 would you like to share the results?
I HAVE A QUESTION (Research Purposes):
Why did my cornstarch-based bioplastic develop mold while drying? I recently attempted to make this type of bioplastic, but after two days, it became moldy. Should I cover the bioplastic while it dries or no?
3:23 this reminds me of a rainy day and the "window has fogged up from the cold and some rain drops are on the window
how should I dry it? do I need to cover it?
hi, I tried your recipe and I got a beautiful result, which dried in less than 24 hours!!! but every time all the sides come out and turn up and curl. Can you tell me why and if there is a solution?
A bit is normal, also happens in my samples.
Did you follow exactly recipe? Did it dry in room temperature
Hey how many time did it take for you to mix it in the hot water ?
@@elka4243 it takes you 10min continuous... if you have added more and made the solution saturated, then it will take longer time... that's why keep adding step wise rather than a huge amount initially...
What factors might contribute to mold growth in cornstarch-based bioplastic, aside from the fact that it is a food?
Do you have some advice on how to dry them properly? If so, please kindly enlighten me!
Like a flavorless fruit rollup.
hey i am having problem in casting. Can you suggest what you used to cast
I use silicone moulds in the video.
can someone give me the process
Is the corn naturally sticky when being touched? Also, why does ours break so easily? Do we need to add more glycerin? Thank you!
Take a look at these samples and see if it matches one of them: th-cam.com/video/1hDXsOrf0AY/w-d-xo.html
Awesome video! I just wanted to know why you used different vinegar, glycerin, and water measures than in your casava recipe. Can this videos measurements be universal and replaced with any starch?
Potato and corn starches seem to interchangeable, but the others not so much, hence the different recipes.
Is this PLA?
Can you transform these bioplastic sheets into a bag like your other "Homemade Bioplastic: bag" video?
It might be possible, but I haven't managed to.
still trying to figure out what 2/3 gylercin means 😢 are there some othered measurements? 2/3 of 1 part?
2/3 of 1 part, yes.
Bro i the sun is gone and i need it to be ready under 18 hours what should i do to speed up the process without using the sun
If you don't mind it having a lot of bubbles, can use the oven at the lowest possible temperature (and fan on if it has one).
Hi, I would like to know how long does the plastic takes to decompose, thank you.
Here: th-cam.com/video/oub-YroMsR0/w-d-xo.html
Hi, may I know how long it will take to degrade?
I've tested it underwater, you can see the results here: th-cam.com/video/DA6U_lJMM3w/w-d-xo.html
Good day again, sir! I have another question. Is it okay if I use oil to cover the metal tray? Because the mixture is sticking to the tray and I can't peel it out. Does it have the same results with using a silicone mould?
Good question, but I can't say, I never tried using oil.
how about using baking paper?
Hi Giestas, Another Question, So I’ve tried out your recipe and i found many cracks appearing in just a single day, so I modified the recipe to add more water and glycerin and did 2 batches, but i still found cracks. I looked through some tutorials and i found most people layering the plastic paper thin, however my plastic is 5mm thick, could this be the problem I’m facing? Thanks in Advance
5mm should be fine. Most often cracks appear when there's something wrong with the amount or quality of glycerin. If you need to change the recipe, maybe look at these tests first: th-cam.com/video/1hDXsOrf0AY/w-d-xo.html
@@giestas Hi Giestas! Thanks for the Quick and helpful response, just like you predicted, thicker batches have cracked, but the paper / polythene thin batches are still perfect, so yeah thanks for all help and tip. I’m actually doing this for my grade 8 Science Project, Just letting you know :) Cheers
@@neelagandanu awesome, go for it!
This is awesome. But may I know it's Edible????
Judging by the ingredients I would guess so, but since I'm not sure, I'd rather not say.
@@giestas thank u so much for rply 🙏
What is the function of the glycerin?
It's a plasticizer. Here you can see what it looks like without glycerin: th-cam.com/video/1hDXsOrf0AY/w-d-xo.html
If one were to have industrial equipment that could create a more concentrated mixture and able to push it into a mold. Then have it dry in an oven. I wonder what the possibilities are.
I've been making some experiences like that, very low-tech of course, I'll share them once I get some half decent results.
Please share even if you get terrible results!! There's a lot that can be learnt from failed experiments and somebody out there could get an important new idea!