Iindaba - Ziziphi iingenelo zokusingqongileyo zePLA kunye neemveliso zokupakisha ze-cPLA?

I-Polylactic acid (PLA) kunye ne-crystallized polylactic acid (CPLA) zizinto ezimbini ezihambelana nokusingqongileyo eziye zafumana ingqalelo ebalulekileyoPLA kunyeCI-PLA ukupakishwaishishini kwiminyaka yakutshanje. Njengeeplastiki ezisekwe kwibhayoloji, zibonakalisa izibonelelo eziphawulekayo zokusingqongileyo xa kuthelekiswa neeplastiki zepetrochemical zemveli.

Iingcaciso kunye noMahluko phakathi kwe-PLA kunye ne-CPLA

I-PLA, okanye i-polylactic acid, i-bio-plastiki eyenziwe kwimithombo ehlaziyiweyo efana nesitashi sombona okanye iswekile ngokuvutshelwa, i-polymerization, kunye nezinye iinkqubo. I-PLA ine-biodegradability egqwesileyo kwaye inokutshatyalaliswa ngokupheleleyo yi-microorganisms ibe yi-carbon dioxide kunye namanzi phantsi kweemeko ezithile. Nangona kunjalo, i-PLA inokumelana nobushushu obuphantsi kwaye iqhele ukusetyenziswa kumaqondo obushushu angaphantsi kwama-60°C.

I-CPLA, okanye i-crystallized polylactic acid, yinto eguqulwayo eveliswa yi-crystallizing PLA ukuphucula ukumelana nobushushu. I-CPLA inokumelana namaqondo obushushu angaphezu kwe-90 ° C, iyenza ilungele izicelo ezifuna ukumelana nobushushu obuphezulu. Iiyantlukwano eziphambili phakathi kwe-PLA kunye ne-CPLA zilele ekusebenzeni kwazo kwe-thermal kunye nokumelana nokushisa, kunye ne-CPLA inoluhlu olubanzi lwezicelo.

Impembelelo yokusingqongileyo yePLA kunye ne-CPLA

Ukuveliswa kwe-PLA kunye ne-CPLA kusekelwe kwizinto eziluhlaza ze-biomass, ukunciphisa kakhulu ukuxhomekeka kwimithombo yepetrochemical. Ngexesha lokukhula kwezi zinto zikrwada, ikharbon diokside ifunxwa ngephotosynthesis, inika amandla okungathathi hlangothi kwekhabhoni kubomi babo bonke. Xa kuthelekiswa neeplastiki zemveli, iinkqubo zokuvelisa ze-PLA kunye ne-CPLA zikhupha iigesi ezimbalwa kakhulu ze-greenhouse, ngaloo ndlela zinciphisa impembelelo yazo embi yokusingqongileyo.

Ukongeza,I-PLA kunye ne-CPLA ziyakwazi ukubola emva kokulahlwa, ngakumbi kwiindawo zokwenziwa komgquba kwimizi-mveliso, apho zinokuthomalalisa ngokupheleleyo kwiinyanga ezimbalwa. Oku kunciphisa iingxaki zongcoliseko lwexesha elide lwenkunkuma yeplastiki kwindawo yendalo kwaye kuthomalalise umonakalo kumhlaba kunye nenkqubo yendalo yaselwandle obangelwa yinkunkuma yeplastiki.

IiNzuzo zokusiNgqongileyo zePLA kunye ne-CPLA

Ukunciphisa ukuxhomekeka kwiiFossil Fuels

I-PLA kunye ne-CPLA zenziwe kwizibonelelo ezihlaziyiweyo ezifana nesitashi sombona okanye iswekile, ngokungafaniyo neeplastiki zendabuko ezixhomekeke kwimithombo yepetrochemical. Oku kuthetha ukuba inkqubo yabo yokuvelisa inciphisa kakhulu ukuxhomekeka kwimithombo engahlaziyekiyo njenge-oyile, inceda ukulondoloza amafutha efosili kunye nokunciphisa ukukhutshwa kwekhabhoni, ngaloo ndlela kuthomalalisa utshintsho lwemozulu.

ICarbon Neutral Potential

Ekubeni izinto eziluhlaza ze-biomass zifunxa i-carbon dioxide ngexesha lokukhula kwazo nge-photosynthesis, ukuveliswa kunye nokusetyenziswa kwe-PLA kunye ne-CPLA kunokufikelela ukungathathi hlangothi kwekhabhoni. Ngokwahlukileyo, ukuveliswa kunye nokusetyenziswa kweeplastiki zendabuko zihlala zikhokelela ekukhutshweni okukhulu kwekhabhoni. Ke ngoko, i-PLA kunye ne-CPLA zinceda ukunciphisa ukukhutshwa kwegesi ye-greenhouse kumjikelezo wobomi babo, ukunciphisa ukufudumala kwehlabathi.

I-Biodegradability

I-PLA kunye ne-CPLA zine-biodegradability egqwesileyo, ngakumbi kwiindawo zokwenziwa komgquba kwimizi-mveliso apho zinokuthomalalisa ngokupheleleyo kwiinyanga ezimbalwa. Oku kuthetha ukuba aziqhubeki kwindawo yendalo efana neeplastiki zemveli, ukunciphisa ungcoliseko lomhlaba nolwandle. Ngaphezu koko, iimveliso zokuthotywa kwe-PLA kunye ne-CPLA ziyi-carbon dioxide kunye namanzi, ezingenabungozi kokusingqongileyo.

Ibhokisi yeSidlo se-CPLA enesiciko esicacileyo

Ukurisayikilisha

Nangona inkqubo yokurisayikilisha ye-bioplastics isaphuhliswa, i-PLA kunye ne-CPLA zineqondo elithile lokuphinda zisetyenziswe. Ngenkqubela phambili kubuchwepheshe kunye nenkxaso yomgaqo-nkqubo, ukurisayikilishwa kwe-PLA kunye ne-CPLA kuya kwanda kakhulu kwaye kusebenze kakuhle. Ukurisayikilishwa kwezi mathiriyeli akunciphisi ngakumbi inkunkuma yeplastiki kuphela kodwa konga izixhobo kunye namandla.

Okokuqala, ukusetyenziswa kwe-PLA kunye ne-CPLA kunokunciphisa ukusetyenziswa kwezixhobo zepetrochemical kunye nokukhuthaza ukusetyenziswa kwezixhobo ezizinzileyo. Njengezinto ezisekwe kwibhayoloji, banciphisa ukusetyenziswa kwamafutha efosili ngexesha lemveliso, ngaloo ndlela behlisa ukukhutshwa kwekhabhoni.

Ukunciphisa Ungcoliseko lweNkunkuma yePlastiki

Ngenxa yokuthotywa ngokukhawuleza kwe-PLA kunye ne-CPLA phantsi kweemeko ezithile, banokunciphisa kakhulu ukuqokelelwa kwenkunkuma yeplastiki kwindawo yendalo, ukunciphisa umonakalo kwizinto eziphilayo ezisemhlabeni kunye nezaselwandle. Oku kunceda ukukhusela iintlobo-ntlobo zezityalo nezilwanyana eziphilayo, ukugcina ulungelelwaniso lwendalo, kunye nokubonelela ngemekobume esempilweni yokuphila yabantu nezinye izinto eziphilayo.

Ukuphucula ukuSebenza ngokuLungileyo kweZibonelelo

Njengemathiriyeli esekwe kwibhayoloji, i-PLA kunye ne-CPLA zinokufikelela kusetyenziso olusebenzayo lwezibonelelo ngokuhlaziywa ngokutsha kunye neenkqubo zokuthotywa. Xa kuthelekiswa neeplastiki zemveli, iinkqubo zabo zokuvelisa kunye nokusetyenziswa zihambelana nokusingqongileyo, ukunciphisa amandla kunye nokuchithwa kwemithombo kunye nokuphucula ukusetyenziswa kobutyebi ngokubanzi.

Okwesibini, ukonakaliswa kwe-biodegradability ye-PLA kunye ne-CPLA kunceda ukuthomalalisa ungcoliseko lwemo engqongileyo okubangela ukwehlisa uxinzelelo lokusingqongileyo kwitipi kunye nokutshiswa. Ukongezelela, iimveliso zokuthotywa kwe-PLA kunye ne-CPLA yi-carbon dioxide kunye namanzi, engabangeli ungcoliseko lwesibini kwindalo.

Okokugqibela, i-PLA kunye ne-CPLA nazo zinokuphinda zisetyenziswe. Nangona inkqubo yokurisayikilisha ye-bioplastics ingekamiselwa ngokupheleleyo, ngenkqubela phambili yobuchwepheshe kunye nokukhuthazwa komgaqo-nkqubo, ukurisayikilishwa kwe-PLA ne-CPLA kuya kuxhaphaka ngakumbi. Oku kuya kunciphisa ngakumbi umthwalo wokusingqongileyo wenkunkuma yeplastiki kunye nokwandisa ukusebenza kakuhle kobutyebi.

IziCwangciso ezinokufezekiswa kokusiNgqongileyo

Ukuqonda ngokupheleleyo izibonelelo zokusingqongileyo ze-PLA kunye ne-CPLA, uphuculo olucwangcisiweyo luyafuneka kwimveliso, ekusetyenzisweni nasekusetyenzisweni ngokutsha. Okokuqala, iinkampani kufuneka zikhuthazwe ukuba zamkele i-PLA kunye ne-CPLA njengezinye iiplastiki zendabuko, ukukhuthaza ukuphuhliswa kweenkqubo zokuvelisa uhlaza. Oorhulumente banokukuxhasa oku ngokusebenzisa inkuthazo yomgaqo-nkqubo kunye nenkxaso-mali ukunyusa ishishini leplastiki esekwe kwibhayoloji.

Okwesibini, ukomeleza ulwakhiwo lweenkqubo zokurisayikilisha kunye nokusetyenzwa kwe-PLA kunye ne-CPLA kubalulekile. Ukuseka inkqubo ebanzi yokuhlela kunye nokuhlaziya iqinisekisa ukuba i-bioplastics inokungena ngokufanelekileyo kwiitshaneli zokurisayikilishwa okanye ukwenza umgquba. Ukongeza, ukuqhubela phambili kobuchwephesha obunxulumeneyo kunokuphucula amazinga okurisayikilisha kunye nokuthotywa komgangatho we-PLA kunye ne-CPLA.

Ngaphaya koko, imfundo yoluntu kunye nokwazisa kufuneka kuphuculwe ukwandisa ukuqondwa kwabathengi kunye nokuzimisela ukusebenzisa.Imveliso ye-PLA kunye ne-CPLA. Ngemisebenzi eyahlukeneyo yokwazisa kunye nemfundo, ulwazi loluntu ngokusingqongileyo lunokomelezwa, ukukhuthaza ukusetyenziswa kohlaza kunye nokuhlelwa kwenkunkuma.

Iziphumo ezilindelekileyo zokusiNgqongileyo

Ngokuphumeza le milinganiselo ingentla, kulindeleke iziphumo ezilandelayo zokusingqongileyo. Okokuqala, ukusetyenziswa okubanzi kwe-PLA kunye ne-CPLA kwintsimi yokupakisha kuya kunciphisa kakhulu ukusetyenziswa kweeplastiki zepetrochemical, ngaloo ndlela kuncitshiswe ukungcola kweplastiki kumthombo. Okwesibini, ukurisayikilishwa kunye nokonakaliswa kwezinto eziphilayo kwiiplastiki ezisekwe kwibhayoloji kuya kunciphisa ngokusebenzayo umthwalo wokusingqongileyo osuka etiphini nasekutshisweni, kuphuculwe umgangatho wendalo.

Kwangaxeshanye, ukukhuthazwa nokusetyenziswa kwePLA kunye ne-CPLA kuya kuqhuba uphuhliso lwamashishini ohlaza nokukhuthaza ukusekwa kwemodeli yoqoqosho lwesetyhula. Oku akuncedi kuphela kusetyenziso oluzinzileyo lwemithombo kodwa kukwakhuthaza ukusungulwa kweteknoloji kunye nokukhula koqoqosho kumashishini anxulumeneyo, ukwenza umjikelo olungileyo wophuhliso lohlaza.

Ukuqukumbela, njengezixhobo ezitsha zokusingqongileyo, iPLA kunye neCPLA zibonisa amandla amakhulu ekunciphiseni ukusetyenziswa kobutyebi kunye nokungcoliseka kwendalo. Ngesikhokelo esifanelekileyo somgaqo-nkqubo kunye nenkxaso yezobuchwepheshe, ukusetyenziswa kwabo ngokubanzi kwindawo yokupakisha kunokufezekisa iziphumo ezifunwayo zendalo, ukwenza igalelo elihle ekukhuseleni imo engqongileyo yoMhlaba.

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