Oko kutsho kweplastiki, kusetyenziswe ngokubanzi kuyo yonke imiba yobomi babantu, ukuzisa lula ukuveliswa kwabantu kunye nobomi. Nangona kunjalo, ngelixa ilungelelene, ukusetyenziswa kwayo kunye nenkunkuma kukhokelela ekungcolisweni kwendalo esingqongileyo, kubandakanya ukungcoliseka emhlophe ezinje ngemilambo, ifama kunye neelwandlekazi.
I-Polythylene (PE) isetyenziswa iplastiki yemveli ngokubanzi kunye nenye yezixhobo eziphambili zebhayiloji.
I-PE inama-rystallies elungileyo, i-vapor engalunganga ye-vapor kunye nokuchasana kwemozulu, kwaye ezi propati zinokubhekiswa ngokudibeneyo kwi "Pemiogics".
Kwinkqubo yokufuna ukusombulula "ukungcoliseka kweplastiki" ukusuka kwingcambu, ukongeza ekufumaneni izinto ezizezinye zendalo esingqongileyo kwaye zibe yinxalenye yezinto ezikhoyo zokungcoliseka komhlaba, kodwa nazo zisombulula ingxaki yendalo esingqongileyo ngexesha elifutshane
Iipropathi zezinto ezinokusetyenziswa ze-biodegraphiding zihlangabezana neemfuno zokusetyenziswa ngexesha lokugcina, kwaye emva kokusetyenziswa, zinokuchithwa zibe yingozi kwindalo phantsi kweemeko zendalo.
Izinto ezahlukeneyo ze biodegraphiding zineempawu ezahlukeneyo kwaye zinezinto zazo eziluncedo nezingalunganga. Phakathi kwawo, i-PLA kunye ne-PBAT inomgangatho ophezulu wokukhulisa umzi-mveliso, kwaye amandla abo emveliso athatha indawo ebalulekileyo kwintengiso. Phantsi konyuselo lwe-odolo yeplastiki, ishishini lezinto eziphathwayo lishushu kakhulu, kwaye iinkampani eziphambili zeplastiki ziye zandise imveliso yazo. Okwangoku, amandla enkqubo ye-PLA ye-TLA ingaphezulu kwe-400,000 yeetoni, kwaye kulindeleke ukuba idlule kwi-3 yezigidi zeetoni kwiminyaka emithathu ezayo. Ukuya kwinqanaba elithile, oku kubonisa ukuba izixhobo ze-PBAT zizinto ezinokutsha zinokuqwalaselwa kakhulu kwintengiso.
Ii-PBs kwizinto ezinokusetyenziswa kwe-biodegraphidibe nayoyinto enesidanga esiphezulu sokwamkelwa, ukusetyenziswa ngakumbi, kunye netekhnoloji yokukhula ngakumbi.
Umthamo okhoyo wokuvelisa kunye nokunyuka okulindelekileyo kwimitha yemveliso yexesha elizayo kwizinto ezihlanjisiweyo ezinje nge-pha, i-PPC, PGC, PCL, kwaye zisetyenziswa kakhulu kwimimandla yemizi-mveliso. Esona sizathu kukuba ezi zinto zixabisekileyo zisekwinqanaba lokuqala, itekhnoloji ayikhuli kwaye iindleko ziphezulu kakhulu, ngoko ke imeko yokuqonda iphakamileyo, kwaye okwangoku ayikwazi kukhuphisana ne-PLA kunye ne-PBAT.
Izinto ezahlukeneyo ze biodegraphiding zineempawu ezahlukeneyo kwaye zinezinto zazo eziluncedo nezingalunganga. Nangona bengafezekanga ngokupheleleyo "iimpawu", enyanisweni, izinto eziqhelekileyo ze-biipitic polyters, ezinjengePlas kunye ne-PBS, eziqukethe ii-esters. I-Poped Pe, inyikima ye-Ester kwi-molecular thein inika i-bibin, kwaye i-Aliiichatic Chain inika "iimpawu" ze-PE.
Inqaku lokunyibilika kunye neepropathi zoomatshini, ukuxhathisa ubushushu, ireyithi yokonakaliswa, kunye neendleko ze-PBAT kunye ne-PBS zingayigubungela ukusetyenziswa kwemveliso ye-PE kwimveliso ye-PE kwimveliso yemveliso enokuchitheka.
Inqanaba lokuphuculwa kwe-PLA kunye ne-PBAT liphezulu, kwaye lukwalathiso lophuhliso oluqinileyo kwilizwe lam. Iplani kunye ne-PBAT ineempawu ezahlukeneyo. Iplani yiplastiki enzima, kwaye i-PBAT yiplastiki ethambileyo. Iplati enamampunge ephathwayo idityaniswa ikakhulu ne-PBAT ngekratshi elungileyo, enokuphucula inkqubo yefilimu yefilimu ngaphandle konakalisa iipropathi zayo zebhayoloji. ukonakaliswa. Ke ngoko, ayikukuba nzima ukutsho ukuba i-PLA kunye ne-PBAT ibe yeyona nto iphambili kwizixhobo ezihlekisayo.
IXESHA LOKUQALA: NgoFebwe-26-2022