Plastics from Potatoes: Practical demonstration

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  • Опубліковано 27 сер 2024
  • Shows the steps involved in extracting starch from potatoes, followed by making plastic from the starch.

КОМЕНТАРІ • 87

  • @phallca
    @phallca 7 років тому +22

    Freezing the potatoes would be a lot easier than grating them as freezing breaks down the cell structure and you can just squeeze the juice from the potato if anything it should give you a better yield than just grating and grinding

  • @drrobotnik5376
    @drrobotnik5376 3 роки тому

    Thankyou David Read! I'm startin to get a feel for this!

  • @aboutstudies123
    @aboutstudies123 5 років тому +4

    That's a helpful video. Thank you.
    A small query: Why only Glycerin is being used?

  • @nicholasbiblelife
    @nicholasbiblelife 12 років тому +2

    Hi, I bought a solder sucker which I can not buy replacement tips for. It cost $20. I want to make a wooden mold and make my own plastic replacement tips. I could make soft plastic replacement tips but if I can harden homemade tips I will be trying to make a plastic hopefully towards the teflon type of plastic. At the moment I could make homemade plastic using milk and vinegar. Will this mix harden using glycerol or would they perhaps conflict with each other? Thanks for your video - Nick

  • @emacartai
    @emacartai 14 років тому

    - again the water can be decanted off.
    - if we dry the starch in an over, we get a white powder.
    - to 2,5 gr starch , we add 25 ml of water.

  • @junseonglee8078
    @junseonglee8078 4 роки тому +1

    Hello I'm a high school student that is currently doing experiments and writing a report based on biodegradable plastic. Can you please tell us the molecular formula and specific steps of decomposing bio plastic?

  • @ankitapaul772
    @ankitapaul772 6 місяців тому

    What temperature have you maintained while heating it

  • @rabinkumar4422
    @rabinkumar4422 10 років тому +1

    what if i looking to prepare plastic on big scale.say 10kg to 15kg?what is the ratio of chemicals we must take .

  • @janicevng6154
    @janicevng6154 6 років тому

    This is our SIP!!!man.thx!!!

  • @ifcodess3855
    @ifcodess3855 10 років тому +1

    hello David.
    What if we Looking create the plastic on big level. Say 15KG to 20KG ? what equipment we should use? what kinda boiler we need to use?
    What is the process for the same? We need to use the big glass biker or we can use the metal l?
    please advice?

  • @phookadude
    @phookadude 9 років тому +4

    Is it thermosetting or thermoplastic?

  • @sophlunlun
    @sophlunlun 5 років тому +1

    How long will it take to bake and how many degrees Fahrenheit?

  • @PhilDronePilot
    @PhilDronePilot Рік тому

    is this PLA? could I put it in a filament extruder along with PLA pellets to make 3D printer filament?

  • @advancedprocrastinators4509
    @advancedprocrastinators4509 9 років тому +3

    actually, the acid can be substituted by vinegar here's a a very easy way of making it and a large quantity too: www.instructables.com/id/Make-Potato-Plastic!/

  • @azeraqw22
    @azeraqw22 9 років тому +3

    Hi,
    Is it soluble in water ?

  • @s.sradon9782
    @s.sradon9782 7 років тому +2

    is it a thermoset?

  • @shrikantathavale6369
    @shrikantathavale6369 5 років тому

    GREAT. THANKS FOR SHARING

  • @anantyt1277
    @anantyt1277 5 років тому

    thus it is a good demostration could we use it in science exhibition as working model

  • @ramisatabassum6598
    @ramisatabassum6598 8 років тому +1

    why did it turn to a sticky jelly type structure when I heated it in oven ?

    • @5sweatingpalm
      @5sweatingpalm 8 років тому +2

      because the water/ moisture in it evaporates thus the chains that were once far apart come closer together because it's not in a orderly form there are some area much bigger coagulated together and some not, this falls under irregular creation, now if you microstructured the formation in a dispenser which controls regularity all through out then you will get a well pan out consistent structure.

  • @MrYogiegomez
    @MrYogiegomez 6 років тому

    to what temp is it heated to for the 15minutes, also what would be the biodegradation time on this stuff?

  • @xing_831
    @xing_831 5 років тому

    Are there any other materials besides potatoes that can be made into plastic?

  • @1994rutul
    @1994rutul 11 років тому

    hey, i would like to know about milk plastic,
    how much time it will take for curing and how about mechanical properties.

  • @spin2117
    @spin2117 7 років тому +1

    What a biopolymer is this? answer please

  • @insyirahsyafie342
    @insyirahsyafie342 5 років тому

    if i extract it from rice, can it still be turmed into plastics?

  • @fishinmidbama
    @fishinmidbama 10 років тому +4

    Why was acid and base used?

    • @fishinmidbama
      @fishinmidbama 10 років тому +2

      What purpose does it serve in the reaction? The solution was probably neutral at the beginning before the acid was added, so I know that the goal was to achieve some sort of property? What is that property?

    • @EgoIsFlawed
      @EgoIsFlawed 10 років тому +3

      fishin mid bama the solution of starch was acidic, by adding Na-OH or lye which is a base, he adjusted the solution to neutral or water.

    • @itabiritomg
      @itabiritomg 8 років тому +1

      to break the natural sugar polimers in the starch.

    • @abcd7152
      @abcd7152 6 років тому +3

      Starch has amylose(linear chains) and amylopectin (branched chains). Branched chains do not easily form plastic, so we add acid to convert amylopectin to amylose.. and later base is acid to neutralize the acid added earlier.

    • @pcbraj4954
      @pcbraj4954 5 років тому

      @@abcd7152 I need your assistance for making corn to plastic

  • @solomonraj6144
    @solomonraj6144 12 років тому

    i got A+++ from this experiment

  • @stephanieortega5916
    @stephanieortega5916 4 роки тому

    Have you tested its tensile strength?

  • @ilaydakavak9826
    @ilaydakavak9826 8 років тому

    Hi thank you so much for share this so useful video . I want to ask a questions.
    How do we understand that bioplastics?
    So just looking at the outward appearance, we can understand is it bioplastic or not ? How to know it chemistry ?

  • @abcd7152
    @abcd7152 6 років тому

    At what temperature, do you bake it in oven?
    And i tried doing the same and when i decanted water to get clear starch, it was not in the form of powder, rather a gelatinous rubber like material. Can you suggest something?

  • @prachisonawane9166
    @prachisonawane9166 3 роки тому

    Can we use your video's content in our research paper?

  • @ElGatoLoco698
    @ElGatoLoco698 10 років тому +3

    Wouldn't practical suggest the plastic being used for a practical purpose? Making a few chips of plastic is hardly practical. What can this plastic be used for?

    • @missdilight
      @missdilight 10 років тому

      i was just wondering the same thing
      is it possible to mold this ?

    • @wingnut4427
      @wingnut4427 10 років тому +4

      I believe the purpose is a proof of concept. You can multiply the weight of each ingredient depending on the amount of plastic you want. But given the fact that conventional plastics are made using petroleum based methods I could see the practically in an alternative source based on simple starch. It would be more eco friendly & would more likely break down quicker in nature. Might be good for making bags, bottles, disposable plastic products such as razor casings & such.

    • @Jononor
      @Jononor 9 років тому

      Bioplastic like this can be used for 3d-printing, which allows you to create a wide range of useful and fun parts (see thingiverse.com ). PLA derived from corn starch is the most common bioplastic used for this, but some filament producers create plastics derived from potato starch as well.

    • @ElGatoLoco698
      @ElGatoLoco698 9 років тому

      Jon Nordby
      I understand how plastic is made but plastic chips is hardly in a form that can be used by a 3D printer.

    • @Jononor
      @Jononor 9 років тому

      ***** After you have produced plastic as seen here, you shred it up into pellets. Then you use a filament extruder (like Filastruder), which you can then feed to your 3D printer.

  • @mvrsubrahmanyam1335
    @mvrsubrahmanyam1335 6 років тому

    can this plastic be decomposed in the soil or water

  • @gigglenaudiastorm4021
    @gigglenaudiastorm4021 11 років тому

    is veg. glycerin can be use instead of just glycerin

  • @NotSoLogical
    @NotSoLogical 11 років тому +1

    That's some very nice spelling you have there.

  • @pradeeshkumar18
    @pradeeshkumar18 6 років тому

    Does it is a non plastic or plastic?

  • @kevinlal2252
    @kevinlal2252 11 років тому +1

    Is This Bioplastic formed

  • @Pollypolyify
    @Pollypolyify 13 років тому

    Can it proof the water ?

  • @AnneGayongan
    @AnneGayongan 11 років тому

    Is it also applicable on Sweet potatoes?

  • @angelinanushaalexander5075
    @angelinanushaalexander5075 5 років тому

    Is this plastic edible?

  • @rejithomast3895
    @rejithomast3895 6 років тому

    is it necessary to have an oven or else heating is enough

  • @danietkissenle
    @danietkissenle 12 років тому +1

    Can you eat it

  • @monalieluistro4121
    @monalieluistro4121 11 років тому

    i'm going to perform this experiment .hope to be successful-____-

  • @thumper409
    @thumper409 12 років тому

    thanks for the vid

  • @youfish
    @youfish 7 років тому

    whats noah ? thx

  • @camoheat9946
    @camoheat9946 6 років тому

    both

  • @opisyaldirk
    @opisyaldirk 9 років тому +1

    Hello, may I ask the amount of NaOH to be used sir. Thanks!

    • @itabiritomg
      @itabiritomg 8 років тому +1

      you can put in NaOH until the indicator paper does not get red anymore.

  • @steve-r-collier
    @steve-r-collier 15 років тому

    i see Stanelco are making this...share price only 0.4p

  • @PowerStudios1000
    @PowerStudios1000 11 років тому

    Plastic can be turned into oil. (On bang goes the theory) so can we use potatoes>plastic>oil? That would be awesome! I challenge you to try it!

  • @saltwater-cowboy
    @saltwater-cowboy 13 років тому

    WHOA
    POTATOES

  • @Madman6231
    @Madman6231 11 років тому

    Lol how do we buy HCl?

    • @MrDoctor023
      @MrDoctor023 6 років тому

      u can buy it in any market in the part for toilet cleaning prntscr.com/ivg517

  • @MrJamespcastle
    @MrJamespcastle 3 роки тому

    I used sour cream and butter and this stuff tastes terrible!

  • @joyhuny6
    @joyhuny6 13 років тому

    waaaawoooooooo......awsummmmmm.....i lvu iiiiit.........

  • @russelltalker
    @russelltalker 8 років тому +3

    Can children in Africa eat this?

    • @itabiritomg
      @itabiritomg 8 років тому

      no, but with this kind of knowledge they can learn how to produce their own stuff ;-)

    • @jangisgand6140
      @jangisgand6140 8 років тому

      +Leonel Braga lol

  • @trooperx4897
    @trooperx4897 12 років тому

    @ase010 nice try :P

  • @Hiddenrage1
    @Hiddenrage1 11 років тому

    muriatic acid is Hydrochloric acid

  • @okaykaykayli
    @okaykaykayli 5 років тому

    It doesn't work at all 🙄🙄🙄

  • @MRhouseoflove1
    @MRhouseoflove1 11 років тому

    And yet we eat potato & wonder y r joints r all fckd up smh.

  • @Hiddenrage1
    @Hiddenrage1 11 років тому

    muriatic acid is Hydrochloric acid

  • @Hiddenrage1
    @Hiddenrage1 11 років тому

    muriatic acid is Hydrochloric acid