Poly Lactic Acid waa polymer-ka lagu helo polymerization lactic acid oo ah alaabta ceeriin ee ugu weyn waana nooc cusub oo ah walxo noole deg deg ah.Sidaa darteed,dunta PLAwaa dun deegaan ahaan u wanaagsan.
Waxaa jirta sabab ah qalabka daabacaadda 3D ee ugu caansan uguna isticmaalka badan ee daabacayaasha FDM waa PLA.Marka la barbardhigo qalabka kale, aad bay u fududahay in la daabaco, taas oo ka dhigaysa fiilo ku habboon hiwaayadda.Sidoo kale, waxaa guud ahaan la rumeysan yahay inPLA filamentayaa ka sii waara oo ka ammaan badan alaabta kale.Xaggee mala-awaalkani ka imaanayaa?Waa maxay waaritaanka100% deegaan-degdeg ah PLA?Marka xigta waxaan diiradda saari doonaa arrimaha la xiriira PLA.
1. Sidee loo soo saaraa PLA?
PLA, oo sidoo kale loo yaqaan Poly Lactic Acid, waxaa laga helaa alaabta ceeriin ee dabiiciga ah ee la cusboonaysiin karo sida galleyda.Ka soo saar istaarijka (glucose) dhirta oo u beddel gulukoosta adoo ku daraya enzymes.Unugyada yaryar waxay khamiiriyaan lactic acid, ka dibna loo beddelo polylactide.Polymerization waxay soo saartaa silsilado molecular silsilado dhaadheer leh kuwaaso hantidoodu la mid tahay kuwa polymers-ku-saleysan batroolka.
2. Maxay ka dhigan tahay "PLA's biodegradable and compostable" macnaheedu?
Erayada "biodegradable iyo compostable" iyo kala soocistoodu waa muhiim oo inta badan waa la fahmi waayay.Jan-Peter Willie wuxuu sharraxay: "Dad badan ayaa ku qalda "biodegradable" iyo "compostable."Si ballaaran haddii loo hadlo, "biodegradable" macneheedu waa in shayga la burburin karo, halka "Compostable" ay badanaa ka dhigan tahay in habkani uu keeni doono bacrin.
Marka la eego xaaladaha anaerobic ama aerobic qaarkood, walxaha "biodegradable" waa la burburin karaa.Si kastaba ha ahaatee, ku dhawaad dhammaan agabka ayaa dami doona marka la dhaafo waqtiga.Sidaa darteed, xaaladaha deegaanka ee saxda ah ee dabiiciga ah waa in si cad loo qeexaa.Burburinta waa hab macmal ah.Marka loo eego halbeegga Yurub ee EN13432, haddii lix bilood gudahood warshadda bacriminta warshadaha, ugu yaraan 90% polymerka ama baakadaha loo beddelo qiiqa kaarboon ee noolaha, iyo waxa ugu badan ee lagu daro waa 1%, polymer ama baakad waa loo tixgaliyo inay yihiin "la'aan karin".Tayada asalka ah waa mid aan dhib lahayn.Ama waxaan si kooban u dhihi karnaa: "Dhammaan composting had iyo jeer waa biodegradable, laakiin dhammaan biodegradation ma aha in ay abuuraan".
3. dunta PLA ma tahay mid deegaan ahaan u fiican?
Marka la horumarinayo alaabta PLA, ereyga "biodegradable" ayaa badanaa la isticmaalaa, taas oo muujinaysa in PLA, sida qashinka jikada, ay qudhmi karaan compost guriga ama deegaanka dabiiciga ah.Si kastaba ha ahaatee, xaaladdu sidaas maaha.Fillaha PLA waxaa lagu tilmaami karaa sidaFillaha PLA ee dabiiciga ah ee la dumin karo, laakiin marka la eego shuruudaha gaarka ah ee qashinka warshadaha, kiiskan, waxay ku habboon tahay in la yiraahdo waa polymer biodegradable.Xaaladaha bacriminta warshadaha, tusaale ahaan joogitaanka microorganisms, xakamaynta heerkulka iyo qoyaanka ayaa ah shuruud lagama maarmaan u ah PLA inay si dhab ah u burburto."Florent Port ayaa sharaxay.Jan-Peter Willie wuxuu ku daray: "PLA waa la burburin karaa, laakiin waxaa kaliya loo isticmaali karaa dhirta warshadaynta."
Marka la eego xaaladahan bacriminta warshadaha, PLA waa la baabi'in karaa maalmo ilaa bilo gudahood.Heerkulku waa inuu ka sarreeyaa 55-70ºC.Nicholas sidoo kale wuxuu xaqiijiyay: "PLA waxaa lagu burburin karaa oo kaliya xaaladaha bacriminta warshadaha."
4. Haddii PLA dib loo warshadayn karo?
Sida laga soo xigtay saddexda khabiir, PLA lafteeda ayaa dib loo warshadayn karaa.Si kastaba ha ahaatee, Port Florent waxay tilmaantay: "Hadda ma jiraan ururinta qashinka PLA ee rasmiga ah ee daabacaadda 3D.Dhab ahaantii, kanaalka qashinka caagga ah ee hadda jira way adagtahay in la kala saaro PLA iyo polymers kale (sida PET (caagadaha biyaha) "Sidaa darteed, farsamo ahaan, PLA waa dib loo warshadeyn karaa, waase haddii taxanaha alaabtu ka kooban yahay PLA oo kaliya oo aan wasakheynin balaastikada kale. .”
5. Fillaha galleyda ee PLA ma yahay filamentiga ugu fiican deegaanka?
Nicolas Roux waxa uu aaminsan yahay in aanay jirin wax kale oo si dhab ah u waaraya oo ka bedeli kara hadhuudhka hadhuudhka, “Nasiib daro, ma garanayo filaha galleyda ee cagaarka iyo badbaadada leh, haddii ay sii dayn doonaan qaybo dhulka ama badda ah ama ay awood u yeelan karaan in ay nafahooda hoos u dhigaan.Waxaan u maleynayaa in marka la dooranayo alaabta, soo saarayaasha ay door bidaan in ay isticmaalaan fiilooyinka leh badbaadada ku habboon si mas'uuliyad leh.
Jiayi's100% dunta PLA biodegradardableayaa ku guuleystay ammaan wadajir ah macaamiisha dhexdooda.Haddii aad u baahan tahay dun ku habboon oo hoos u dhigi karta emvronmentally saaxiibtinimo, waad nala soo xidhiidhi kartaa
Waqtiga boostada: Oct-19-2022
