Izindaba - Yiziphi izinzuzo zemvelo zemikhiqizo yokupakisha ye-PLA ne-cPLA?

I-Polylactic acid (PLA) ne-crystallized polylactic acid (CPLA) yizinto ezimbili ezihambisana nemvelo ezithole ukunakwa okukhuluI-PLA kanyeCI-PLA ukupakishaimboni eminyakeni yamuva. Njengamapulasitiki asekelwe ku-bio, abonisa izinzuzo eziphawulekayo zemvelo uma kuqhathaniswa namapulasitiki endabuko e-petrochemical.

Izincazelo kanye Nomehluko Phakathi kwe-PLA ne-CPLA

I-PLA, noma i-polylactic acid, i-bio-plastic eyenziwe ngezinsiza ezivuselelekayo ezifana nesitashi sombila noma umoba ngokuvutshelwa, i-polymerization, nezinye izinqubo. I-PLA inokubola okuhle kakhulu kwe-biodegradability futhi ingacekelwa phansi ngokuphelele ama-microorganisms abe yi-carbon dioxide namanzi ngaphansi kwezimo ezithile. Nokho, i-PLA inokumelana nokushisa okuphansi futhi ngokuvamile isetshenziswa emazingeni okushisa angaphansi kuka-60°C.

I-CPLA, noma i-crystallized polylactic acid, iyinto eshintshiwe ekhiqizwa i-crystallizing PLA ukuthuthukisa ukumelana kwayo nokushisa. I-CPLA ingakwazi ukumelana namazinga okushisa angaphezu kuka-90°C, okuyenza ilungele izinhlelo zokusebenza ezidinga ukumelana nokushisa okuphezulu. Umehluko omkhulu phakathi kwe-PLA ne-CPLA usekucutshungulweni kwazo okushisayo nokumelana nokushisa, kanti i-CPLA inohlu olubanzi lwezinhlelo zokusebenza.

Umthelela Wezemvelo we-PLA kanye ne-CPLA

Ukukhiqizwa kwe-PLA ne-CPLA kusekelwe ezintweni ezingavuthiwe ze-biomass, kunciphisa kakhulu ukuncika emithonjeni ye-petrochemical. Ngesikhathi sokukhula kwalezi zinto zokusetshenziswa, i-carbon dioxide imuncwa nge-photosynthesis, inikeze ithuba lokungathathi hlangothi kwekhabhoni kuwo wonke umjikelezo wabo wokuphila. Uma kuqhathaniswa nopulasitiki bendabuko, izinqubo zokukhiqiza ze-PLA ne-CPLA zikhipha amagesi abamba ukushisa ambalwa kakhulu, ngaleyo ndlela zehlise umthelela wazo omubi kwezemvelo.

Ngaphezu kwalokho,I-PLA ne-CPLA ziyabola ngemva kokulahlwa, ikakhulukazi ezindaweni ezikhiqiza umquba wezimboni, lapho zingase ziwohloke ngokuphelele phakathi nezinyanga ezimbalwa. Lokhu kunciphisa izinkinga zesikhathi eside zokunukubezeka kwemfucuza yepulasitiki endaweni yemvelo futhi kunciphisa umonakalo enhlabathini nasezindaweni zasolwandle obangelwa udoti wepulasitiki.

Izinzuzo Zemvelo ze-PLA kanye ne-CPLA

Ukunciphisa Ukuthembela Kumafutha Emivubukulo

I-PLA ne-CPLA zenziwe ngezinsiza ezivuselelekayo ezifana nesitashi sombila noma umoba, ngokungafani namapulasitiki endabuko athembele kumithombo ye-petrochemical. Lokhu kusho ukuthi inqubo yabo yokukhiqiza inciphisa kakhulu ukuncika ezinsizeni ezingavuseleleki ezifana nowoyela, okusiza ukulondoloza amafutha ezinsalela kanye nokunciphisa ukukhishwa kwekhabhoni, ngaleyo ndlela kunciphise ukushintsha kwesimo sezulu.

I-Carbon Neutral Amandla

Njengoba izinto zokusetshenziswa ze-biomass zimunca i-carbon dioxide ngesikhathi sokukhula kwazo nge-photosynthesis, ukukhiqizwa nokusetshenziswa kwe-PLA ne-CPLA kungazuza ukungathathi hlangothi kwekhabhoni. Ngokuphambene, ukukhiqizwa nokusetshenziswa kwamapulasitiki endabuko ngokuvamile kubangela ukukhishwa kwekhabhoni okuphawulekayo. Ngakho-ke, i-PLA ne-CPLA zisiza ukunciphisa ukukhishwa kwegesi ebamba ukushisa phakathi nomjikelezo wempilo yabo, ukunciphisa ukufudumala kwembulunga yonke.

I-Biodegradability

I-PLA kanye ne-CPLA zinokubola okuhle kakhulu kwemvelo, ikakhulukazi ezindaweni ezikhiqiza umquba wezimboni lapho zingakwazi ukuwohloka ngokugcwele phakathi nezinyanga ezimbalwa. Lokhu kusho ukuthi aziqhubeki endaweni yemvelo efana nepulasitiki yendabuko, ukunciphisa ukungcoliswa komhlabathi nolwandle. Ngaphezu kwalokho, imikhiqizo yokuwohloka kwe-PLA ne-CPLA iyi-carbon dioxide namanzi, angenabungozi emvelweni.

Ibhokisi Lesidlo Sasemini le-CPLA elinesivalo esicacile

Ukusebenziseka kabusha

Nakuba uhlelo lokugaywa kabusha kwama-bioplastics lusathuthuka, i-PLA ne-CPLA zinezinga elithile lokuphinda lisetshenziswe. Ngokuthuthuka kwezobuchwepheshe nokwesekwa kwenqubomgomo, ukugaywa kabusha kwe-PLA ne-CPLA kuzosakazeka kakhulu futhi kusebenze kahle. Ukugaywa kabusha lezi zinto akugcini nje kuphela ngokuqhubeka nokunciphisa udoti wepulasitiki kodwa futhi konga izinsiza namandla.

Okokuqala, ukusetshenziswa kwe-PLA ne-CPLA kunganciphisa ukusetshenziswa kwemithombo ye-petrochemical futhi kukhuthaze ukusetshenziswa kwezinsiza okusimeme. Njengezinto ezisekelwe ku-bio, banciphisa ukusetshenziswa kukaphethiloli we-fossil ngesikhathi sokukhiqiza, ngaleyo ndlela behlisa ukukhishwa kwekhabhoni.

Ukunciphisa Ukungcola Kwepulasitiki

Ngenxa yokuwohloka ngokushesha kwe-PLA ne-CPLA ngaphansi kwezimo ezithile, zinganciphisa ngokuphawulekayo ukunqwabelana kwemfucumfucu yepulasitiki endaweni yemvelo, zehlise umonakalo kuzinto eziphilayo zasemhlabeni nasolwandle. Lokhu kusiza ukuvikela ukuhlukahluka kwemvelo, ukugcina ibhalansi yemvelo, futhi kunikeze indawo yokuhlala enempilo kubantu nezinye izinto eziphilayo.

Ukuthuthukisa Ukusebenza Kwezinsiza Zokusetshenziswa

Njengezinto ezisekelwe kubhayoloji, i-PLA kanye ne-CPLA ingafinyelela ukusetshenziswa kwensiza ngendlela efanele ngokusebenzisa izinqubo zokugaywa kabusha nokuwohloka. Uma kuqhathaniswa namapulasitiki endabuko, izinqubo zawo zokukhiqiza nokusebenzisa imvelo zinobungani nemvelo, zinciphisa ukumosheka kwamandla nezinsiza kanye nokwenza ngcono ukusebenza kahle kokusetshenziswa kwezinsiza.

Okwesibili, ukubola kwe-biodegradability kwe-PLA kanye ne-CPLA kusiza ekwehliseni ukungcoliswa kwemvelo okubangelwa ukwehlisa ingcindezi yezemvelo evela ekulahleni imfucumfucu nasekushiseni. Ukwengeza, imikhiqizo yokucekela phansi kwe-PLA ne-CPLA yi-carbon dioxide namanzi, okungabangeli ukungcoliswa kwesibili kwemvelo.

Okokugcina, i-PLA ne-CPLA nazo zinokuphinda zisetshenziswe. Nakuba uhlelo lokugaywa kabusha kwe-bioplastics lungakaqinisekiswa ngokugcwele, ngokuthuthuka kwezobuchwepheshe nokukhuthazwa kwenqubomgomo, ukugaywa kabusha kwe-PLA ne-CPLA kuzokwanda kakhulu. Lokhu kuzophinde kunciphise umthwalo wemvelo wokulahlwa kwepulasitiki futhi kuthuthukise ukusebenza kahle kwezinsiza.

Izinhlelo Ezingenzeka Zokusebenzisa Imvelo

Ukuze uthole ngokugcwele izinzuzo zemvelo ze-PLA ne-CPLA, ukuthuthukiswa okuhlelekile kuyadingeka ekukhiqizeni, ekusetshenzisweni, nasekusetshenzisweni kabusha. Okokuqala, izinkampani kufanele zikhuthazwe ukuthi zamukele i-PLA kanye ne-CPLA njengezinye izindlela zamapulasitiki endabuko, ezikhuthaza ukuthuthukiswa kwezinqubo zokukhiqiza eziluhlaza. Ohulumeni bangakwazi ukukweseka lokhu ngokusebenzisa izinxephezelo zenqubomgomo kanye noxhaso lwezezimali ukuze kuthuthukiswe imboni yepulasitiki esekwe ku-bio.

Okwesibili, ukuqinisa ukwakhiwa kwezinhlelo zokugaywa kabusha nokucubungula ze-PLA kanye ne-CPLA kubalulekile. Ukusungula uhlelo oluphelele lokuhlunga nolokugaywa kabusha kuqinisekisa ukuthi ama-bioplastics angangena ngempumelelo amashaneli okugaywa kabusha noma okwenza umquba. Ukwengeza, ukuthuthukiswa kobuchwepheshe obuhlobene bungathuthukisa amazinga okugaywa kabusha kanye nokusebenza kahle kokuwohloka kwe-PLA ne-CPLA.

Ngaphezu kwalokho, imfundo yomphakathi kanye nokuqwashisa kufanele kuthuthukiswe ukuze kwandiswe ukuqashelwa kwabathengi kanye nokuzimisela ukusebenzisa.Imikhiqizo ye-PLA ne-CPLA. Ngemisebenzi eyahlukene yokukhangisa kanye nemfundo, ukuqwashisa umphakathi ngemvelo kungaqiniswa, kugqugquzelwe ukusetshenziswa kohlaza kanye nokuhlelwa kwemfucuza.

Imiphumela Yemvelo Elindelwe

Ngokusebenzisa lezi zinyathelo ezingenhla, kulindeleke imiphumela elandelayo yezemvelo. Okokuqala, ukusetshenziswa okubanzi kwe-PLA ne-CPLA emkhakheni wokupakisha kuzonciphisa kakhulu ukusetshenziswa kwamapulasitiki e-petrochemical, ngaleyo ndlela kunciphise ukungcoliswa kwepulasitiki okuvela emthonjeni. Okwesibili, ukugaywa kabusha kanye nokubola kwe-bioadegradability kwamapulasitiki asekelwe ku-bio kuzonciphisa ngempumelelo umthwalo wemvelo ovela ekulahlweni imfucumfucu nokushiswa, kuthuthukise ikhwalithi yemvelo.

Ngesikhathi esifanayo, ukukhuthazwa kanye nokusetshenziswa kwe-PLA kanye ne-CPLA kuzoqhuba ukuthuthukiswa kwezimboni eziluhlaza futhi kukhuthaze ukusungulwa kwemodeli yomnotho oyindilinga. Lokhu akusizi kuphela ekusetshenzisweni okusimeme kwezinsiza kodwa kuphinde kugqugquzele ukuqanjwa kabusha kwezobuchwepheshe kanye nokukhula komnotho ezimbonini ezihlobene, okwakha umjikelezo omuhle wokuthuthukiswa kohlaza.

Sengiphetha, njengoba izinto ezintsha ezivikela imvelo, i-PLA ne-CPLA zibonisa amandla amakhulu ekwehliseni ukusetshenziswa kwezinsiza kanye nokungcoliswa kwemvelo. Ngokuqondiswa kwenqubomgomo efanele kanye nokusekelwa kwezobuchwepheshe, ukusetshenziswa kwabo okusabalele emkhakheni wokupakisha kungafinyelela imiphumela efiselekayo yezemvelo, kube negalelo elihle ekuvikeleni indawo ezungezile yoMhlaba.

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