Bophelong ba rona ba letsatsi le letsatsi, dihlahiswa tsa polasetiki di atile hohle. Leha ho le jwalo, mathata a ntseng a eketseha a tikoloho a bakwang ke dipolasetiki tsa setso a susumeditse batho ho batla mekgwa e meng e tsitsitseng haholoanyane. Mona ke moo dipolasetiki tsa tlhaho di kenellang teng. Har'a tsona, starch ya poone e bapala karolo ya bohlokwa e le karolo e tlwaelehileng dipolasetiking tsa tlhaho. Jwale, karolo yapoone ea cornstarch ka har'a li-bioplastics?
1. Li-bioplastics ke eng?
Li-bioplastic ke polasetiki e entsoeng ka mehloli e nchafatsoang joalo ka limela kapa likokoana-hloko. Ho fapana le polasetiki ea setso, li-bioplastic li entsoe ka mehloli e nchafatsoang, kahoo li baka tšusumetso e fokolang tikolohong. Setache sa poone, har'a tsona, hangata se sebelisoa e le e 'ngoe ea likarolo tsa bohlokoa tsa li-bioplastic.
2. Karolo ea Setache sa Poone ho Bioplastics
Setache sa poone haholo-holo e sebeletsa mesebetsi e meraro e meholo:
Setache sa poone se bapala karolo ho ntlafatseng, ho tsitsiseng le ho ntlafatseng thepa ea ts'ebetso ho li-bioplastic. Ke polymer e ka kopanngoang le li-polymer tse ling tse bolang kapa li-plasticizer ho theha meaho e tsitsitseng. Ka ho eketsa litlatsetso tse loketseng ho starch ea poone, ho thatafala, ho tenyetseha le sekhahla sa ho senyeha ha li-bioplastics li ka fetoloa, e leng se etsang hore li lokele maemo a fapaneng a ts'ebeliso.
Ho Ntlafatsa Matla a Mekaniki: Ho kenyelletsoa ha starch ea poone ho ka ntlafatsa ho tiea le matla a ho thapolla a li-bioplastics, ho li etsa hore li tšoarelle haholoanyane.
Ho Ntlafatsa Tshebetso ya Tshebetso: Boteng ba starch ya poone bo etsa hore di-bioplastic di be bonolo ho di sebedisa nakong ya ts'ebetso, e leng se thusang tlhahiso ya dihlahiswa tse fapaneng tse bopehileng jwalo.
Ho phaella moo, starch ea poone e na le bokhoni bo botle ba ho bola. Tlas'a maemo a loketseng a tikoloho, likokoana-hloko li ka qhaqha starch ea poone hore e be metsoako e bonolo ea lintho tse phelang, qetellong li fihlelle ho senyeha ka ho feletseng. Sena se lumella li-bioplastic hore li sebelisoe hape ka tlhaho kamora ho sebelisoa, e leng se fokotsang tšilafalo ea tikoloho.
Leha ho le jwalo, starch ya poone le yona e hlahisa diphephetso tse ding. Mohlala, dibakeng tse nang le mocheso o phahameng kapa mongobo o phahameng, di-bioplastic di sekametse ho lahlehelwa ke botsitso, e leng se amang nako ya tsona ya bophelo le tshebetso ya tsona. Ho rarolla bothata bona, bo-rasaense ba ntse ba sebetsa ho fumana di-additives tse ntjha kapa ho ntlafatsa mekgwa ya tlhahiso ho ntlafatsa ho hanyetsa mocheso le ho hanyetsa mongobo ha di-bioplastics.
3.Tšebeliso ea Setache sa Poone ho Bioplastics e Ikhethang
Tšebeliso ea starch ea poone ka har'a li-bioplastics tse itseng e fapana ho latela thepa e lakatsehang le tšebeliso e reriloeng ea sehlahisoa sa ho qetela. Mehlala e 'maloa ke ena:
Asiti ea Polylactic (PLA): PLA ke bioplastic e atisang ho ntšoa starch ea poone. Starch ea poone e sebetsa e le phepelo ea tlhahiso ea lactic acid, ebe e fetoloa polymer ho etsa PLA. PLA e matlafalitsoeng ka starch ea poone e bontša thepa e ntlafetseng ea mechini, joalo ka matla a ho tsitlella le ho hanyetsa tšusumetso. Ho feta moo, ho eketsoa ha starch ea poone ho ka ntlafatsa ho bola ha PLA, e leng se etsang hore e lokele lits'ebetso moo matšoenyeho a tikoloho a leng bohlokoa haholo, joalo kalisebelisoa tsa ho jela tse lahloang, liphutheloana tsa lijo, le lifilimi tsa mulch tsa temo.
Polyhydroxyalkanoates (PHA): PHA ke mofuta o mong oa bioplastic o ka hlahisoang ho sebelisoa starch ea poone e le mohloli oa khabone. Starch ea poone e belisoa ke likokoana-hloko ho hlahisa polyhydroxybutyrate (PHB), e leng mofuta oa PHA. Li-PHA tse matlafalitsoeng ka starch ea poone li atisa ho ba le botsitso bo betere ba mocheso le thepa ea mechini. Li-bioplastic tsena li fumana ts'ebeliso makaleng a fapaneng, ho kenyeletsoa liphutheloana, lisebelisoa tsa bongaka le temo.
Li-Bioplastic tse Thehiloeng ho Starch: Maemong a mang, starch ea poone e sebetsoa ka ho toba hore e be li-bioplastic ntle le tlhoko ea mehato e eketsehileng ea polymerization. Li-bioplastic tse thehiloeng ho Starch hangata li na le motsoako oa starch ea poone, li-plasticizer, le li-additives ho ntlafatsa ts'ebetso le litšobotsi tsa tšebeliso ea qetellong. Li-bioplastic tsena li sebelisoa lits'ebetsong tse kang mekotla e lahloang, lijana tsa lijo, le lijana tsa tafole tse lahloang.
Ho Kopanya le Li-polymer tse Ling tse Bolang: Setache sa poone se ka boela sa kopanngoa le li-polymer tse ling tse bolang, tse kang polyhydroxyalkanoates (PHA), polycaprolactone (PCL), kapa polybutylene adipate-co-terephthalate (PBAT), ho etsa li-bioplastic tse nang le thepa e etselitsoeng motho ka mong. Metswako ena e fana ka tekano ea matla a mechini, ho tenyetseha le ho bola ha lintho tse phelang, e leng se etsang hore li lokele lits'ebetso tse fapaneng ho tloha ho sephutheloana ho ea ho temo.
4. Qetello
Karolo ea starch ea poone ho li-bioplastics e feta ho ntlafatsa ts'ebetso; e boetse e thusa ho fokotsa ho itšetleha ka li-plastiki tsa setso tse thehiloeng ho peterole, e leng se susumetsang nts'etsopele ea lisebelisoa tse mosa tikolohong. Ka tsoelo-pele ea theknoloji, re lebeletse ho bona lihlahisoa tse ncha tsa bioplastic tse thehiloeng mehloling e nchafatsoang joalo ka starch ea poone.
Ka bokhutšoanyane, starch ea poone e bapala karolo e nang le mahlakore a mangata ho li-bioplastics, eseng feela ho ntlafatsa botsitso ba sebopeho sa li-plastiki empa hape le ho khothaletsa ho bola ha tsona, ka hona ho fokotsa tšusumetso ea tikoloho. Ka tsoelo-pele e tsoelang pele ea theknoloji le boqapi, li-bioplastics li ikemiselitse ho bapala karolo e kholo ho tliseng melemo e mengata tikolohong ea Lefatše la rona.
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