Amaqiniso Ngeplastiki Ebolayo

1. Yini ipulasitiki eyonakalisayo?

Ipulasitiki elonakaliswayo ngumqondo omkhulu. Kuyisikhathi futhi iqukethe isinyathelo esisodwa noma ngaphezulu ngaphansi kwezimo zemvelo ezicacisiwe, okuholela kuzinguquko ezinkulu ekwakhiweni kwamakhemikhali kwento, ukulahleka kwezakhiwo ezithile (njengobuqotho, ubukhulu bamangqamuzana, isakhiwo noma amandla womshini) kanye / noma ukuphuka upulasitiki.

2. Iyini ipulasitiki ebolayo?

Ama-plastiki abolayo angamapulasitiki angaqedwa isenzo sezinto eziphilayo, imvamisa amagciwane, emanzini, isikhutha kanye ne-biomass. Ama-plastiki abolayo avame ukukhiqizwa ngezinto ezingavuselelwa, izinto ezincane, ama-petrochemicals, noma inhlanganisela yazo zontathu lezi zinto.

3. Yini impahla ebolayo?

Izinto zokubola ezibolayo zifaka izinto zokubumba ezinemvelo ebolayo njenge-cellulose, isitashi, iphepha, njll. Kanye nama-plastiki abolayo atholakala nge-bio-synthesis noma i-synthesis synthesis.

Ipulasitiki ebolayo ngokubolayo isho usawoti wezinto ezingaphili kanye ne-biomass entsha (njengemizimba efile, njll.) Okonakala kwayo kubangelwa isenzo sezinambuzane ezincane emvelweni ngaphansi kwezimo zemvelo ezifana nenhlabathi kanye / noma isihlabathi, kanye / noma izimo ezithile ezifana izimo zokufaka umquba noma ukugaya kwe-anaerobic noma oketshezi olunamanzi oluningi, oluzogcina selonakele ngokuphelele lwaba yi-carbon dioxide (CO2) noma / ne-methane (i-CH4), amanzi (i-H2O) kanye nezinto eziqukethwe kuyo.

Kumele kuqashelwe ukuthi yonke inhlobo yento ebolayo, kubandakanya iphepha, idinga izimo ezithile zemvelo zokwehla kwayo. Uma ingenazo izimo zokucekelwa phansi, ikakhulukazi izimo zokuphila kwama-microorganisms, ukonakala kwayo kuzohamba kancane; ngasikhathi sinye, akuzona zonke izinhlobo zezinto ezibolayo ezingasheshe zilulaze ngaphansi kwanoma yiziphi izimo zemvelo. Ngakho-ke, kunconywa ukuthi sinqume ukuthi ngabe okokusebenza kungaboliseka ngokubola ngokufunda izimo zezemvelo ezizungezile nokuhlaziya ukwakheka kwento uqobo lwayo.

4. Izinhlobo ezahlukene zeplastiki ezibolayo

Ngokuya ngohlobo luni lwento eluhlaza okusetshenziswayo, ipulasitiki ebolayo ingahlukaniswa izigaba ezine. Isigaba sokuqala yipulasitiki elungiswa ngqo ezintweni zemvelo. Emakethe njengamanje, ipulasitiki ebolayo, ekhiqizwa ngama-polymers emvelo ikakhulukazi afaka isitashi se-thermoplastic, biocellulose kanye ne-polysaccharides njll .; Isigaba sesibili yi-polymer etholwe ukuvutshelwa kwe-microbial kanye nokwenziwa kwamakhemikhali, njenge-polylactic acid (PLA), njll .; Isigaba sesithathu yi-polymer, ehlanganiswa ngqo ngezinto zokwakha izinto ezincane, njenge-polyhydroxyalkanoate (PHA), njll .; Isigaba sesine yipulasitiki ebolayo ebolayo etholakala ngokuxuba izinto ezishiwo ngaphambili noma ngokungeza ezinye izinto zokwenziwa kwamakhemikhali.


Isikhathi sokuposa: Mar-08-2021