Ngokuqwashisa ngokwanda kokuvikelwa kwemvelo, kube nesidingo esikhulayo sezinto zokupakisha ezingenakusebenza. Izikhwama ze-Biodegradable Composite zisetshenziswe kabanzi embonini epakisha eminyakeni yamuva ngenxa yezimpawu zazo ezinhle njengezindleko eziphansi, amandla aphezulu, kanye ne-bioderHudalability.
Ukwakheka kwezinto ezibonakalayo zezikhwama ze-biodegradable composite zivame ukuhlanganisa ingxube yama-polyrlines ahlukahlukene, njenge-polyethylene (pe), i-polypropylene (PP), kanye nesitashi, kanye nezinye izithasiselo. Lezi zinto zokwenziwa zivame ukuhlanganiswa ngokuhlanganisa, amafilimu ashaywayo, noma izindlela zokuphonsa ukwakha okuhlanganisiwe kwezingqimba ezimbili noma ngaphezulu ezinezakhiwo ezahlukahlukene.
Ungqimba lwangaphakathi lwesikhwama se-biodegradable composite luvame ukwenziwa nge-polymer engathandeki, efana ne-pla noma isitashi, esinikeza isikhwama nge-biodergadability. Isendlalelo esiphakathi sakhiwa ngokuhlanganisa i-polymer ebonakalayo ne-polymer ejwayelekile, njenge-PE noma i-PP, ukuthuthukisa amandla nokuqina kwesikhwama. Isendlalelo sangaphandle senziwe futhi nge-polymer evamile, ukuhlinzeka ngezakhiwo ezinhle zokuvimbela kanye nokwenza ngcono ikhwalithi yokuphrinta yesikhwama.
Eminyakeni yamuva, ucwaningo selugxile ekuthuthukisweni kwezikhwama ezi-biodergadable ezisebenza nge-biodercradable ezi-bioderite ezinezakhiwo ezinhle kakhulu zemishini nezithiyo. Ukusetshenziswa kwe-nanotechnology, njengokufakwa kweNano-Cway noma ama-Nano-Fillers, kukhonjiswe ukuthuthukisa amandla, ukuqina kanye nezindawo zokubopha zezikhwama ze-biodergradable.
Ngaphezu kwalokho, umkhuba embonini yokupakisha ubheke ekusetshenzisweni kwezinto zokusetshenziswa ezizinzile nezivuselelekayo, njenge-bioplastics esekwe kwi-biomass, ekukhiqizweni kwezikhwama ezihlanganisiwe ze-bioderbradable. Lokhu kuholele ekuthuthukisweni kwezinto ezintsha ze-biodegradable, njengePolyhydroxyalkataates (PA), etholakala ngokuvutshelwa kwamagciwane wezinto zokwakha ezingavuselelwa futhi zine-biodegreaticity enhle kakhulu kanye nezakhiwo zemishini.
Izikhwama zokupakisha ezi-composite ezingcolile ziya ngokuya zithandwa kakhulu njengoba ukuqwashisa kwabantu ukuvikela kwemvelo kuthuthukiswa ngokuqhubekayo. Izikhwama zokupakisha eziyinhlanganisela ziluhlobo lwezinto zokupakisha ezenziwe ngezinto ezimbili noma ngaphezulu ngenqubo eyinhlanganisela. Banokusebenza okungcono kunokupakishwa okwenziwe ngakunye futhi bangaxazulula ngempumelelo izinkinga zokulondolozwa, zokuhamba, nokumaketha kokudla nezinye izinto.
Kodwa-ke, izikhwama zokupakisha zendabuko ezihlanganisiwe ziye zagxekwa ngenxa yomthelela wazo ongemuhle emvelweni. Eminyakeni yamuva nje, ngesidingo esandayo sentuthuko esimeme, ukunakwa okwengeziwe nokuthe xaxa kuye kukhokhwa ngodaba "lokungcoliswa okumhlophe" okubangelwa imfucuza yepulasitiki. Ukuze uhlangabezane nezidingo zokuvikelwa kwezemvelo futhi uthuthukise intuthuko esimeme, ucwaningo ngezikhwama zokupakisha ezingokoqobo ezingokoqobo sekuyisihloko esishisayo.
Izikhwama zokupakisha ezi-composite ezingcolile zingenye yezinketho ezithembisa kakhulu, ngoba zinganciphisa ukulimala kwemfucuza yepulasitiki kuya emvelweni.
Isikhwama sokupakisha esiyinhlanganisela esibonakalayo senziwa ikakhulukazi ngesitashi nezinye izinto zemvelo, ezenza kube bioderhadable ngesikhathi esifushane. Ingahle ibonwe ngokuphepha futhi kalula ibe yi-carbon dioxide namanzi, ngaphandle kokulimaza imvelo.
Isikhwama sokupakisha esilula esicekayo sinezakhiwo ezinhle kakhulu zokupakishwa, kufaka phakathi ukumelana nomswakama okuhle, amandla aphezulu, nokuqina okuhle. Ingavikela ngempumelelo imikhiqizo kumswakama, emoyeni, nokukhanya, futhi ifinyelele umphumela ofanayo nezikhwama zendabuko zepulasitiki zendabuko.
Ngaphezu kwalokho, isikhwama esicekayo sokupakisha singenziwa ngokwezifiso ngokuya ngezidingo ezihlukile zamakhasimende. Ingakhiqizwa ngosayizi ahlukahlukene, izitayela, nemibala, futhi ingaphrintwa ngokukhangisa noma imininingwane yokuphromotha.
Ukusetshenziswa kwezikhwama zokupakisha ezingcolile ezingcolile kungasiza ukunciphisa ukungcoliswa kwemfucuza yepulasitiki nokukhuthaza intuthuko esimeme. Ingahlangabezana nezidingo zabathengi ukupakishwa ngenkathi nokuvikela nokwenza ngcono imvelo.
Izici zezikhwama ezihlanganisiwe ze-biodegradable ikakhulukazi zibandakanya izici ezilandelayo:
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2. Ukumelana nomswakama okuhle: Izikhwama ze-Biodegradable Composite zingambozwa ngezinto zokwenziwa kobufakazi kungqimba yangaphakathi, ezingavimba ngempumelelo umswakama ezintweni eziqukethe umswakama.
3. Amandla aphezulu, ubulukhuni obuhle: Izikhwama ze-biodegradable comporistite zinamandla aphezulu okuqina kanye nobunzima, okwenza bakwazi ukubekezelela imithwalo esindayo.
4. Ukwehluka ngokwezifiso futhi okucebile: Izikhwama ze-biodegradable composite zingenziwa ngamasayizi ahlukene, imibala, izitayela nokuphrinta ngokuya ngezidingo zamakhasimende.
5.Can Faka esikhundleni sezikhwama zepulasitiki zendabuko: Uma kuqhathaniswa nezikhwama zepulasitiki zendabuko, izikhwama ze-biodegradable composite zinokuvikelwa okungcono kwemvelo, ukulimazeleka kanye nokubuyiselwa kabusha, impahla eqhubekayo yokufaka kabusha.
Ngamafuphi, ukuthuthukiswa kwezikhwama zokupakisha ezingcolile ezingcolile kuyindlela ebalulekile yokuqhakambisa ukuthuthukiswa okuqhubekayo komkhakha wokufaka. Ukusetshenziswa kwezinto ezingokonakalayo ezikhwameni zokupakisha ezihlanganisiwe kunganciphisa ngempumelelo ukulimala okubangelwa imfucuza yepulasitiki kuyo, futhi kuhlinzeka ngesisombululo esivumelana nemvelo senkinga "yokungcoliswa okumhlophe". Yize lezi zikhwama zibiza ngaphezulu, izinzuzo abazilethayo emvelweni zifinyelela kude. Lapho abathengi beqhubeka nokuthuthukisa ukuqwashisa kwabo ngokuvikelwa kwemvelo, amathemba emakethe wezikhwama ezingonakalisiwe zokupakisha zizothembisa ngokwengeziwe.
Isikhathi sePosi: Mar-30-2023