Ngokuqiniswa kongcoliseko “longcoliseko olumhlophe”, amazwe kwihlabathi jikelele aphehlelele ummiselo ongqongqo weplastiki, onokuthi ubole iingxowa zeplastiki ukuze zihlale kwiivenkile ezinkulu nakumaziko okuthenga.Uqwalaselo olucokisekileyo luya kufumanisa ukuba ezi ngxowa zeplastiki zonakeleyo phantse zonke ziphantse zonke ezi ntlobo.Pbat+PLA+ST.Ngoko ke zeziphi iingenelo ze-PBAT+PLA+ST?
Omnye: isitatshi
Isitatshi sisasazwa ngokubanzi kwiziqhamo okanye kwiziqhamo zezityalo, iingcambu okanye amagqabi.Kukho ukuya kutsho kumakhulu ezigidi zeetoni zemveliso yesitatshi minyaka le.Ngomnye wemithombo emininzi ehlaziyekayo kunye ne-biodegradable.Ineenzuzo zemithombo ebanzi kunye namaxabiso aphantsi.Nangona kunjalo, ngenxa yokuba isitashi sendalo sinesakhiwo se-microcrystalline kunye nesakhiwo se-granular, asinayo ukusebenza kwe-thermoplastic processing, kwaye kufuneka siguqulwe sibe sistatshi se-armoplastic ukuze sibe nokusebenza kwe-thermoplastic processing.
Zimbini: PBAT
I-Polycolic acid/phenyl -dysic acid dysol (PBAT) luhlobo lwepolyester eyonakaliswayo eye yatsala ingqalelo enkulu.Kwaye i-ductility inokuncitshiswa ibe ngamanzi kunye ne-carbon dioxide kwiimeko zendalo.
Nangona kunjalo, ixabiso lale nto liphezulu, elinciphisa ukusetyenziswa kwayo kwimarike;ke ngoko, ixabiso layo eliphantsi kunye nesitatshi esonakeleyo lolona khetho lungcono nge-PBAT.
Abathathu: PLA
I-PLA (i-Polylactic Acid) ikwabizwa ngokuba yi-polystumin.Inkqubo yokuvelisa i-polystumin yingcoliseko, kwaye imveliso inokuthi i-biodegradable, eyenzeka kwindalo.Ke ngoko, yinto efanelekileyo yepolymer eluhlaza.Nye.
Nangona kunjalo, zininzi iintsilelo kwizicelo ezisebenzayo: I-PLA inokuqina okulambathayo, ukunqongophala kwe-elasticity kunye nokuguquguquka, ukuguquguquka okuqinileyo kunye nokuqina, amandla asezantsi anyibilikayo, isantya sekristale esicothayo, njl.
Ubume bekhemikhali be-PLA buqulethe inani elikhulu leebhondi ze-ester, ezibangela ukuba i-hydrophilicity embi kunye namazinga okunciphisa kufuneka alawulwe.Ukongeza, ixabiso le-PLA liphezulu, elonyusa ixabiso lezinto eziluhlaza kunye nokunciphisa ukukhuthazwa kwezorhwebo.Ke ngoko, i-PLA iguqulelwe kwezi ntsilelo zininzi zingentla.
I-PBAT inokwakheka okuthambileyo, i-ductility eyomeleleyo, kunye nomjikelo omfutshane wokuthotywa;I-PLA ine-crispy texture, ukuqina okungahambi kakuhle, kunye nomjikelo omde wokuthotywa.Ke ngoko, ukuxuba ezi zimbini yindlela ebalaseleyo yokuphucula ukusebenza.
Ezine: PBAT/PLA ukwaziswa kwezinto
Ukunyibilika kwe-PBAT kunye ne-PLA yindlela yokuguqulwa komzimba.Inqaku eliphambili kukufuna ukuhambelana okuhle.Nangona kunjalo, ukunyibilika kwe-PBAT kunye ne-PLA kukhulu, ngoko ukuhambelana akukuhle, kwaye kunzima ukuxuba ngokufanayo.
Ukuphucula ukuhambelana kwe-PBAT kunye ne-PLA yeyona ngxaki iphambili.Isikhongozeli esinye okanye ngaphezulu kufuneka zongezwe kumxube wokuxuba ukuphucula ukudibanisa kwe-PBAT kunye ne-PLA interface.Izikhongozeli ezisetyenziswa ngokuqhelekileyo zezi: iiplasticizers, reactivity, reaction, kunye nepolymer eqinile yepolymer.
I-PLA kunye ne-PBAT zinentsebenzo ehambelanayo, ngoko ke kufuneka kubekho umgangatho ophezulu womgangatho womsebenzi obanzi.
1. Umyinge we-PLA unyuka ukuya kuma-40% kwiindawo zokuhlala.Ubunzima bokwelula kwezinto eziphathekayo buyancipha kuqala kwaye bunyuke.
2. Ukuba umxholo we-PLA mkhulu kune-70%, izinto eziphathekayo zibukhali kwaye azikwazi ukuvuthelwa kwifilimu.Ke ngoko, umyinge we-PLA kwi-PBAT kufuneka ugcinwe malunga ne-1: 1 ngokwemeko yesongezo.
【Ukusebenza okuthotyiweyo】
Impendulo yokuqala yokuthotywa kwezinto kukuba impendulo ye-hydrolyzed yee-molecule zamanzi zingena.Ukuba yinto eyahlukileyo ye-PBAT, kunzima ukuthoba ngenxa yokuba isakhiwo se-molecular sineebhondi ze-ester eziqinileyo.Iimolekyuli ze-PLA ziyakwazi ukuthotywa kwangaphakathi ngamanzi.Ke ngoko, ukuphakama komxholo we-PLA, ngokukhawuleza ukuthotywa kwezinto.
Ixesha lokuposa: Sep-08-2022