I-Polylactic Acid (Pla): Enye indalo enobuhlobo kwiplastiki

Yintoni iplani?

I-Polylactic Acid, ekwabizwa ngokuba yi-pla (i-Polylactic Acid), i-thermoplastic monomer ethathwe kwimithombo yolwazi ehlaziyiweyo efana nesitatshi sengqolowa okanye i-pullane okanye iswekile okanye iswekile okanye iswekile okanye iswekile okanye iswekile okanye iswekile okanye iswekile okanye i-pullane okanye iswekile.

Nangona kunjalo nakwiplastiki zangaphambili, iipropathi zalo zinezixhobo ezihlaziyiweyo, zenza ukuba ibe yeyona ndlela yendalo.

Iplagi ise-carbon engathathi cala, iyadibeki, kunye ne-biedegrades, oko kuthetha ukuba inokubola ngokupheleleyo kwiindawo ezifanelekileyo endaweni yokuqhekeza kwii-microplastics eziyingozi.

Ngenxa yokukwazi kwayo ukubola, isetyenziselwa njengezinto zokupakisha iingxowa zeplastiki ezinokutsha ze-biodegrades, imitya, iikomityi, kunye neepleyiti, kunye netafile.

Indlela yokuphelisa i-pla

I-Pla iphantsi konakaliseka kwebhayoloji ngeendlela ezintathu:

I-Hydrolysis: Amaqela e-Ester kwi-chain ephambili aphukile, okukhokelela ekunciphiseni ubunzima bemolekyuli.

Ukuhombisa kwe-thermal: Into ebuhlungu ebangelwa kukusekwa kweenqobo ezahlukeneyo, ezinjengeemolekyuli ezilula, umgca kunye ne-elcciclic milecries ubunzima beemolekyuli ezahlukeneyo, kunye ne-lactive.

Ifoto Le yeyona nto iphambili eveza i-polylactic acid yokukhanya kwelanga kwiplastiki, kwizikhongozeli zokupakisha, kunye nezicelo zefilimu.

Impendulo ye-hydrolysis yile:

-Ngoo- + H 2 O → u-Aoh + -YoOh

Iqondo lokonakaliswa licotha kakhulu kubushushu obufanelekileyo. Isifundo sika-2017 safumanisa ukuba i-PATALS ayifumananga nayiphi na ilahleko esemgangathweni kwisithuba solwandle nge-25 ° C (77 ° F), kodwa isifundo asikulinganiseli ukubola okanye ukufundwa kwamanzi.

Zeziphi iindawo zesicelo sePlati?

I-1. Iimpahla zabathengi
Iplanti isetyenziswa kwiimpahla ezahlukeneyo zabathengi, ezinje ngetafile yokulahlwa, iingxowa zokuthenga zevenkile, izixhobo zokuphuma kwekhithi, kunye nezixhobo eziphathwayo.

2. Ezolimo
IPla isetyenziswa kwifom yefayibha yemigca yefibrer yefibrer yefibre kunye neminatha yotyalo kunye nolawulo lokhula. Isetyenziselwa iingxowa zesanti, iimbiza zeentyatyambo, imitya ebophayo, kunye neentambo.

3. Unyango lonyango
Iplani inokuncitshiswa kwi-lactic engenabungozi i-lactic, iyenza ilungele ukusetyenziswa kwezixhobo zonyango ngendlela ye-anshers, izikrelem, iipleyiti, iikhonkwane, iintonga, kunye neminatha.

Ezona meko ziqhelekileyo zinokwenzeka

1. Ukurisayikilisha:
Inokuphinda isebenze kwakhona okanye isebenze kwakhona kwakhona. EBelgium, iGalaxy isungule isityalo sokuqala se-Pilot sokurisayikilisha kwiPlamikhali yePlati (i-Loopla). Ngokungafaniyo nokurisayikilisha, iNkunkuma inokuba nengcungcutheka ezahlukeneyo. I-Polylactic Acid inokubuyiselwa ngokwemichiza njengabasebenzi nge-themors kwi polymerization ye-thermal okanye i-hydrolysis. Emva kokuhlanjululwa, ii-monomers zinokusetyenziselwa ukwenza i-PAR ye-REW ngaphandle kokuphulukana neepropathi zawo zokuqala.

2. Umgquba:
Iplani inokubekwa phantsi kwe-biodegrayed meko, kuqala nge-Hydrolysis, emva koko nge-gesility yegesi, kwaye ekugqibeleni ihlazo. Ngaphantsi kweemeko zemveliso yemveliso (i-58 ° F), i-Plat (malunga nesiqingatha) ibola amanzi kunye nekharbon diokside ngaphakathi kweentsuku ezingama-60, ngokuxhomekeka kwi-crystallies yezinto ezibonakalayo. Kwimeko engqongileyo ngaphandle kweemeko eziyimfuneko, ukubola kuya kucotha kakhulu, kufana neplastiki engeyiyo iplastiki, engayi kulungisa ngokupheleleyo amakhulu okanye amawaka eminyaka.

3. Ukutshisa:
Iplani inokutshitshiswa ngaphandle kokuvelisa i-chlorine eneechemicals okanye i-metals enzima, njengoko inekotshi ye-carbon, ioksijini, kunye neeathom ze-hydrogen. Ukutshisa i-PLAROSCYP START kuya kuvelisa i-19.5 MJ / kg / kg (8368 BTU / LB) yamandla ngaphandle kokushiya nayiphi na intsalela. Oku, kunye nezinye iziphumo, kubonisa ukuba ukubekwa kwendlela yobuhlobo obunobuhlobo bokunyanga inkunkuma ye-Polylactic acid.

4. Fill:
Nangona i-pla inokuthi ingene kwi-Landfills, yeyona nto incinci inobuhlobo kuba izinto eziphathekayo zinobushushu, zihlala zihamba kancinci njengezinye iiplasitiki ezingenamsebenzi.