Kodi pali kusiyana kotani pakati pa matumba opakira osawonongeka ndi matumba opakira omwe amatha kuwonongeka?

Chikwama chopakira chowonongeka chimatanthawuza kuwonongeka, koma thumba loyikirapo lowonongeka limagawidwa m'mitundu iwiri: yonyozeka komanso yowonongeka kwathunthu.Matumba olongedza owonongeka amatanthawuza kuwonjezera kuchuluka kwa zowonjezera (monga wowuma, wowuma wosinthidwa kapena mapadi ena, photosensitizers, biodegraders, etc.) amawonongeka.Matumba oyikamo omwe amawonongeka kotheratu amatanthawuza matumba apulasitiki oyikamo omwe amawonongeka kukhala madzi ndi carbon dioxide.Gwero lalikulu la zinthu zosawonongeka izi ndi kugaya chimanga ndi chinangwa kukhala lactic acid, kapena PLA.
Polylactic acid (PLA) ndi mtundu watsopano wa biological matrix komanso zinthu zongowonjezedwanso.Kugwiritsa ntchito wowuma monga zopangira, saccharification kupeza shuga, ndiyeno nayonso mphamvu shuga ndi ena tizilombo ta kupeza mkulu chiyero lactic acid, ndiyeno synthesizing asidi polylactic ndi ena maselo kulemera mwa kaphatikizidwe mankhwala.Ili ndi biodegradability yabwino.Pambuyo ntchito, zikhoza kuonongeka kotheratu ndi tizilombo m'chilengedwe pansi zinthu yeniyeni kupanga mpweya woipa ndi madzi, amene saipitsa chilengedwe.Ndizopindulitsa kwambiri kuteteza chilengedwe ndipo ndizinthu zowononga zachilengedwe kwa ogwira ntchito.
Pakali pano, zazikulu zamoyo ofotokoza za thumba kwathunthu degradable ma CD wapangidwa ndi PLA + PBAT, amene akhoza kuwonongeka kwathunthu mu madzi ndi mpweya woipa mu 3-6 miyezi pansi composting mikhalidwe (60-70 madigiri), popanda kuipitsa chilengedwe.Chifukwa chiyani kuwonjezera PBAT, katswiri wopanga ma CD osinthika, kufotokozera zotsatirazi ndikuti PBAT adipic acid, 1,4-butanediol, terephthalic acid copolymer, yochuluka kwambiri ndi biodegradable synthetic aliphatic ndi onunkhira polima polima Taiwan, PBAT ili ndi kusinthasintha kwabwino, imatha filimu extrusion, kuwomba processing, ❖ kuyanika ndi processing zina.Cholinga chophatikiza PLA ndi PBAT ndikukweza kulimba, kuwonongeka kwachilengedwe ndi mawonekedwe a PLA.PLA ndi PBAT sizigwirizana wina ndi mzake, kotero kusankha compatibilizer yoyenera kungathandize kwambiri ntchito ya PLA.