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- เผยแพร่เมื่อ 28 พ.ค. 2024
- Recipe for DIY bioplastic at home: Cassava starch Vinegar Glycerin
00:00 intro
00:08 ingredients
00:22 utensils
00:50 mixing
02:00 cooking
02:33 pouring
02:53 drying
03:03 unmould
03:33 quantities & dimensions - ภาพยนตร์และแอนิเมชัน
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thanks for the video, I'll trying it someday
This is so cool!
Hi! May I know where you got the measurements for each ingredients? How did you know that you should put a 4:1:1/3:1/3 ratio? Thank you!
I googled a few recipes, tried them, tested changing each ingredient quantity, and got the best results with this ratio.
can i ask how much weight this can hold ? thank you
Hello! How many grams is the outcome of the bioplastic??
Hello! May I increase the tensile and strength of bioplastic by adding more vinegar?
I tried adding more vinegar, as you can see in this video: th-cam.com/video/1hDXsOrf0AY/w-d-xo.html
and by hand feel I can't say the change in strength was significative.
I would have to make some rigorous tests to know for sure, though.
hello! may i ask what thepurpose of the vinegar is? is it important for it to become a bioplastic and not just a gelatin?
It breaks the molecular structure of the starch, which changes into longer chains (polymer). This video might give you more info on this topic: th-cam.com/video/3A-lLOunRoE/w-d-xo.html
hi, do you think using a blowtorch would eliminate the bubbles or would it ruin it? and have you found a way to speed up the drying process? a dehydrator perhaps?
and i'm curious what do you use them for? is it exclusively for experimenting or do you actually have a specific use for it?
sorry for the questions, i'm considering doing an assignment on this topic
The dehydrator shortens the drying time to 3 days, but not a lot of people have one, so I'm looking for other ways to speed up the process. About the blowtorch, I don't know but now I'm curious, I'll have to try it out :)
I had a lot of expectations for possible uses... until I started making the actual materials. Then I realized how much trial and error would be needed, and decided to share the tests.
@@giestas Respect! Great efforts and thank you for sharing. Am working on industrialising this and wondering on your efforts on drying time reducing?
@@ashok1goodlife check out the video on drying in the oven: th-cam.com/video/XBjUPxaGcZQ/w-d-xo.html
May i ask how long it takes to dicompose? Or even dissolve in water?
I'd say it dissolves in water in a few hours, but I don't know how long it takes to decompose.
Can you like make one that is not soluble in water. Or like decrease the water solubility
For this cassava starch bioplastic I don't know the answer, but I'm currently doing that kind of test for the gelatin and agar bioplastics.
Hello is it okay to add gelatin to the mixture even though we have cassava starch included?
Good question but I can't say, haven't tried that yet.
what mold did you use for the bigger one?
It's a 20x15cm silicone mold.
You can see this mold being used in the video "BIOPLASTIC DIY : Cassava starch Vinegar Glycerin coloured".
@@giestas thank you!
hi! may i know what's temperature when you cooked the mixture? is it in medium high heat? thank youu!!
Medium high heat yes, the mixture starts to get some consistency from 70⁰C upwards.
@@giestas thank you very much !
Have you tried to make other shapes, other colors? Or make it like a vase, utensils?
Other colors yes, it's pretty easy: th-cam.com/video/4LY9Pvwy7yI/w-d-xo.html
Is the 10 days at room temperature or at direct sunlight?
Room temperature.
What do you mean by "parts". Can you use teaspoon or tablespoon please? I don't understand
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. 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.
@@giestashiii I have a question the tool you've used to measure the water is it tablespoon? And for fos the starch is it teaspoon?
hello sir! may i know why in 1:42 you didnt mix it with a spatula? is there a reason for it?
That's because starch and water makes up a non-Newtonian fluid, that gets harder as you try to mix it with a spatula, for example.
@@giestas ohhh so it turns into like... oobleck? thank you so much for that
Can we assure that there will be no Fruit fly when we dry this bioplastic? Or molds to be form?
If you keep it in a dry environment, it'll stay mold and fly free.
Wow! Does this dissolve in water or hot water?
Here: th-cam.com/video/DA6U_lJMM3w/w-d-xo.html
what effect would not adding vingar have on the plastic
Not sure, this one doesn't have vinegar and looks similar: th-cam.com/video/XBjUPxaGcZQ/w-d-xo.html
What can I used instead of vanigar
You can try using lemon juice. I don't have an exact recipe but the quantities are not far from the original ones. It'll just take a bit longer to dry, if I remember correctly.
What can we use as a substitute of cassava starch
I've tried potato and corn starch, the process is the same but the ratios are a bit different, you can see it in this video: th-cam.com/video/Uaz9Qvadyio/w-d-xo.html
@@giestas thankyou
Can we substitute cassava starch with flour?
No, but if you have a hard time getting cassava starch, maybe you'll find it easier to get potato or corn starch: th-cam.com/video/Uaz9Qvadyio/w-d-xo.html
maybe you can reinforce it with Cellulose nano-particles, but I have no idea if the two go together.
I've been wanting to do some experiments like that, but getting a hold of nano cellulose is very difficult around here...
I believe there are sellers that distribute worldwide - or produce it yourself with certain chemicals;) literature is full with ways how to make them.@@giestas
What will be the measurement to get more product?
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.
Thank you sir.❤ Glod bless❤
last question. Sir, is it advisable to use sunlight to dry easily or not?
Hey, I didn't understand your mesures. Can you pls help me? Thks.
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.
Are there other ways to speed up the drying process?
With a dehydrator you can get a sample to dry in 3 days, but not a lot of people have one, so I've been looking for alternatives...
@@giestas How about using room temperature and also sunlight? I tried putting it inside a car where the sunlight hits and it dried out for three days. I suggest you also try that.
@@giestas is oven possible?
@@aimee5552 here: th-cam.com/video/XBjUPxaGcZQ/w-d-xo.html
Can it dissolve in tap water?
I made a video about that: th-cam.com/video/DA6U_lJMM3w/w-d-xo.html
Hello sir i tried using rice starch instead of cassava but when i boiled it i didn't get that jelly texture to add it to mould it was more like cream
I tried rice starch with this recipe and didn't manage to make it work either :/
@@giestas oh it's my project 😭 i thought it would work are there any other methods or ratios that I can try?
@@tanayatiwari-GMBT it probably works, but I don't know the recipe.
Can it dissolve in water??
Yes!
Cassava Startech, vinegar
hello, just ask if is this edible?
It won't kill you but probably don't taste good.
You should use food grade vegetable glycerin if that's the objective, and you'll probably survive :) but it won't taste good.
good day, sir! May I know if you have a research study about making bioplastic using cassava starch? I was hoping I could include it in my research study as references, to properly acknowledge your work. I'm hoping for your reply as soon as possible. Thank you!!
Thank you for your message, but I haven't made academic research on this subject; the extent of my work is what you see here on the channel.
@@giestas Thank you for responding! Well, that's a shame. Then, do you have any references of the quantities of the ingredients you used? Such as why exactly 2tbsp of Cassava starch was used?
@@adelahmrhm5502hi! i'm doing a similar research, is it possible if I read your work for reference?
@@aimee5552 hello! of course! we've already finished our research study, but the decomposition of the bioplastic was not included in the study. i'll e-mail you the document of our study.
@@aimee5552 what's your e-mail account?
Can u dry it using an oven?
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.
@@giestas ele vai demorar a princípio quantos dias se eu deixar ele no forno?
@@camillehartmann1016 no desidratador demoraria 12 horas no mínimo; no forno a fazer de desidratador talvez demore o mesmo.
hi, is this edible?
If you use food grade ingredients it should be.
What type of glycerol do you use?
Common glycerol (a.k.a. glycerin) for household applications.
min aku minta videonya buat tugas yaa (aku potong sebaian)
please sir, what is the glycerin for
It makes the bioplastic flexible. You can see the effect in this video: th-cam.com/video/1hDXsOrf0AY/w-d-xo.html
2:36