Conversion of Food Waste into Polylactic acid Fibre

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  • เผยแพร่เมื่อ 3 เม.ย. 2016

ความคิดเห็น • 41

  • @1Scimetar
    @1Scimetar 2 ปีที่แล้ว +3

    Engineering firms could also use this. Plastic prototypes and small scale concept models can be 3d printed, for which, PLA extruded into a 1.75mm filament is a common material.

  • @circularbrow
    @circularbrow ปีที่แล้ว +6

    First, virtually nothing is said about the yield and the cost of the final product. Second, PLA is NOT, I repeat, PLA IS NOT NATURALLY BIODEGRADABLE within realistic timeframes and REQUIRES industrial composters in order to be degraded.

  • @patprop74
    @patprop74 6 ปีที่แล้ว +16

    Seeing how there is now a huge demand for PLA filaments for 90% of desktop 3d Printers, added with the many uses that bio plastics such as PLA provides, this project should be a world wide, and funded globally by first world nations. Such as United kingdom , United States, Canada, China, Australia ........

    • @DaveSmith-cp5kj
      @DaveSmith-cp5kj 4 ปีที่แล้ว +5

      There are several big issues. The 3D printing community is extremely small. Second you use more energy and manpower to produce PLA than more easily synthesized plastics like ABS. This is also the reason why ABS plastics for 3D printing are often much cheaper than PLA. It would be an absolute waste of money to promote PLA, not to mention a backwards step in technology considering PLA is decisively a less durable material than the conventionally used polymers.

    • @claudekim7876
      @claudekim7876 ปีที่แล้ว

      @@DaveSmith-cp5kj im here 3 years later. 3d printing is on a global exponential growth right now. i know canadas oil sands use 3d printers for ther 60 year old fire alarm systems cuz the parts are no longer made. soon automanufacturers are gonna print cars rather than clay model for design (yes they still clay model entire cars) buildings are being 3d printed (albeit concrete) but eventually with standardized hassel free printers like bamboo labs carbon x (it does ABL, FLOW ADVANCE, ESTEPS AND ALL OUT OF BOX) its gonna become a very standard in most households and bigger companies are gonna invest to make it more hassle free and even better, faster, etc.
      from my parents generation to ours was pcs and major electronics, our generation to our kids generation is gonna be 3d printing, and robots.

    • @DaveSmith-cp5kj
      @DaveSmith-cp5kj ปีที่แล้ว

      @@claudekim7876 Additive manufacturing is currently on the decline right now. It's great for home projects if you don't have mass production capabilities available to you, but the corporations that invested millions into AM have taken a net loss as 3D printed parts are nowhere as durable as injection molded plastic or subtractive machined or forged parts, and the designs that can only 3D printed are being outperformed by traditionally made and simpler designs. Today people know the limitations of 3D printing which is why most clients will ask if your parts are 3D printed or not, and if they are that's a hit against your credibility.
      The issue with AM is not the technology, it's the process itself. Its slower and produces infinitely more failure points than subtractive manufacturing. The failure of many AM adopters to understand that is largely why the adoption of AM into a high fidelity application has been so slow. It's trying to push a square peg into a round hole.

  • @VictoriaLemardel
    @VictoriaLemardel 5 ปีที่แล้ว +1

    Very interesting, i subscribed

  • @ilknurilhan8320
    @ilknurilhan8320 ปีที่แล้ว +1

    But PLA degrade only in industrial composting, not in nature or home composting. Therefore, if it is not sorted and collected separately as a compost and leaks into nature it takes not thousands but hundreds of years to degrade, and it does the same damage as a microplastic during this timeframe.

  • @hoyinching9313
    @hoyinching9313 ปีที่แล้ว +1

    You still need to test whether it is degradable in natural environment

  • @luzhelena1981
    @luzhelena1981 3 ปีที่แล้ว +11

    It is not true that is degradable in the natural environment, it requires special composting facilities, specific temperatures, humidity and specific microorganisms not available in regular conditions.

    • @RB-wu4us
      @RB-wu4us 2 ปีที่แล้ว +3

      And pressure

    • @Ram-ql1nv
      @Ram-ql1nv ปีที่แล้ว +1

      Every microorgnism is in nature somewhere. very idiotic comment

    • @danielrugeles1103
      @danielrugeles1103 ปีที่แล้ว

      @@Ram-ql1nv you do realize humans can bio engineer microorganisms right? For example insulin producing E. Coli bacteria. They are not found in nature at all, they where created in a lab for a specific purpose.
      What an idiotic response.

    • @Citnos
      @Citnos 9 หลายเดือนก่อน +1

      Microorganisms that are not found in nature?...
      (Not discussing the biodegradability characteristics of the PLA, which I ignore)

    • @luzhelena1981
      @luzhelena1981 9 หลายเดือนก่อน

      @@Citnos you are right, I meant specific microorganisms. Thank you for spotting it.

  • @darrenwatson1539
    @darrenwatson1539 6 ปีที่แล้ว +4

    Interesting. Makes you wonder just who the hell thinks this stuff up and what was the train of thought that got them there.

    • @Boomchacle
      @Boomchacle 5 ปีที่แล้ว +5

      Poly lactic acid is needed in a lot of stuff... ok... that has lactic acid in it... ok... how do I get a lot of lactic acid?
      lets see, anerobic cellular processes produce lactic acid, so how am I going to get that to happen... well, some molds are anerobic, lets see if those work. ok they do. these molds eat food, so we can just use food to turn into PLA. COOL

    • @DaveSmith-cp5kj
      @DaveSmith-cp5kj 4 ปีที่แล้ว

      PLA was originally made in the early 20th century as one of the early plastics. Backed by the industrial boom, people were doing all kinds of novel things. Plastics were key as they would provide better durability than wood but lighter weight than metals. PLA ultimately was a failure though because it has serious issues with durability. Nylon in contrast was a huge success. PLA was good for 3d printing in the early years when hot ends couldn't melt ABS reliability but now ABS is pretty much the standard.

    • @_A.Trader
      @_A.Trader 2 ปีที่แล้ว +1

      Ass Juice

  • @ManoBengaluru
    @ManoBengaluru 5 ปีที่แล้ว +11

    Yield is very low

    • @drumkommandr9779
      @drumkommandr9779 3 ปีที่แล้ว +1

      process can scale in a linear fashion all the way up to using 55gal drums rather than beakers

  • @hmkk1746
    @hmkk1746 2 ปีที่แล้ว

    are the three differnt process of making it differnt ways of differnt parts in one large process???

    • @claudekim7876
      @claudekim7876 ปีที่แล้ว

      im guessing this is for concept, the other ways are probs mass scale to produce 1000s of kgs of pla

  • @manishgaur6900
    @manishgaur6900 4 ปีที่แล้ว

    at last it converts into CO2 and the main moto should be towards to reduce the carbon footprint not to increase it... is there any possible way to utilize this produced CO2

    • @khlorghaal
      @khlorghaal 2 ปีที่แล้ว

      it is carbon neutral as the biomass used to produce it fixates atmospheric co2

  • @ok95valen
    @ok95valen 5 ปีที่แล้ว +3

    How expensive may be to produce this product

    • @Edward-ed2oi
      @Edward-ed2oi 5 ปีที่แล้ว +1

      It is about 2 to 3 times more expensive than comparable products. Really not too bad. Definitely will be more commonly used in the next few years.

    • @DaveSmith-cp5kj
      @DaveSmith-cp5kj 4 ปีที่แล้ว +2

      @@Edward-ed2oi lol, if it is more expensive than its competitors it is not going to gain popularity.

    • @Edward-ed2oi
      @Edward-ed2oi 4 ปีที่แล้ว

      @@DaveSmith-cp5kj A lot of research is focused on bringing the cost down. So once that happens it will be widely used, and it's likely government will step in.

    • @DaveSmith-cp5kj
      @DaveSmith-cp5kj 4 ปีที่แล้ว

      @@Edward-ed2oi PLA is not a new material. It has been in existence for almost a century now. Again, it would be really stupid to invest research into this material when we have plenty of other high performing polymers that have practical applications. Carbon based polymers for instance, or the composites derived from its use.

    • @Edward-ed2oi
      @Edward-ed2oi 4 ปีที่แล้ว

      @@DaveSmith-cp5kj When it was initially discovered in the 30's they had great difficulty getting the molecular weight high enough. It's really not a bad idea if you research the details from a chemical engineering perspective. Maybe economics no but it can be made cheaper and that will give it the ability to take on more roles. It's actually pretty basic knowledge stuff.

  • @rahulbollampalli7730
    @rahulbollampalli7730 3 ปีที่แล้ว

    PLA in name itself a acid how it doesn't effect food in packaging

    • @desmond-hawkins
      @desmond-hawkins ปีที่แล้ว +1

      Affect food packaging as in what, dissolving it? Because… "acid" does that? DNA is deoxyribonucleic acid, yet it doesn't dissolve your cells. Not every acid is a smoky liquid that destroys everything it touches like in cartoons.

  • @dicktsui1818
    @dicktsui1818 6 ปีที่แล้ว +1

    does it mean that if i go to city u i can have free spools of filament?

    • @bleepbloopskrrr
      @bleepbloopskrrr 5 ปีที่แล้ว

      Dick Tsui no, why would they do that?

  • @Chaynique
    @Chaynique 2 ปีที่แล้ว

    but why ?

  • @desmond-hawkins
    @desmond-hawkins ปีที่แล้ว

    All this scientific research and the hard work of these fungi, only to end up as plastic spaghetti on yet another failed Benchy print.