Uhlelo Lwesibonakaliso Seplastic Esiphethembekileyo Kwimfundo Yophazinyo - Izisombululo Ezihle Kakhulu Zokukhupha Itholakala

Ukusebenza kwezinkinga yokukhupha kwezinkcazelo zokukhupha zeziphambo kumongo wokupakisha kusuka kumfanekiso ophuthumayo wemolekyuli okhiqiza izimo ezifanele zomdaka phakathi kweziphambo nezinto zokwakha izimvamvu. Lezi zinhlelofatshe zisetyenziswa i-base polymers ekhethiwe ngokucophele kombisa nezongezi-mix zazenzelwa ukuba zenze izigaba-mthambeka esincane kakhulu, esihlukileyo esinamandla okungahambelani. Umfanekiso wemolekyuli walezi zingcindeziweni unika amandla okuhlanjulula kangako, ucinga ukufinyelela kwesibonelo siphela nangaphandle kokuchazwa okuncane, okungafanelekanga, nokubonakala kwesithuthi. Lokhu kufinyelela kujikelela kubonakala ngokuvamile emva kwezibonelo zonke, ukulima isiphazamiso sokugcina okungahambelani okunakekela ukungahleli komnwe noma ukuguquka kwezilinganiso. Izingcindezi zokukhupha ziphambo kumongo wokupakisha zibandakanya iziqhamo zokulindela umthubi zokulinda izimo zokuthepha ngokude ngaphandle kokulahlwa noma ukweba. Lokhu kukhuseleko kumthubi kubaluleke kakhulu ekusebenzeni kumaprosesi athembekileyo apho izinto ezingenalo zingahlala futhi zikha izinkinga zokulahlekelwa. Ukukhuseleka kususela ngaphambi kokulungiswa kwezidingo lokukhupha kuze kube yilokusebenza okukhuselela ukungasebenzi kanje phakathi kweziphambo neziphathimandla. Lokhu kukhuseleka kubaluleke kakhulu xa kusebenziswa izipolimera ezingenayo noma izongezi-mix ezingasemoyeni ezingakwazi ukuduma noma ukushaya izimvamvu ezinde zokukhupha. Izici zokwenza izigaba-mthambeka zezinkinga ezinhle zokukhupha ziphambo kumongo wokupakisha zenza izizathulo eziphansi ezingavaleki noma zingaphuli ngaphandle kokuchithwa. Lokhu kukhuseleka kugcinwa ngokugcina emva kwezinqumo ezide eziphathelene nobude bokuthepha obukhulu. Le zinhlelofatshe ezinezindlela zokukhuselela okungasenthe kakhulu, zenza ukuthi izinkunkuma zingahlengiwe futhi zibuke ngempumelelo. Izici ezinhle zokusebenza ziyafika kuzo wonke izikhathi zokukhupha, oku kuthi inani elilodwa libe ligcinwa kumsebenzi omningi ngaphambi kokuthi kudingeka kubuyiselwe. Lokhu kugcinwa kude kunciphisa ukusetshenziswa kwezinto futhi kunciphisa izidingo zomsebenzi ngelishwa njalo liphuhlise ubomi obuvamile.

Ukusebenzisa kwezibhamu eziphambili zokukhipha iplastics ekususweni kwemfundo kwenza izinyathelo ezilungile kumsebenzi wokwakha ngokuvamile ngendlela eyizinkimbini eziphathelene nokuthutha kwezindleko zokwakha futhi ukuthintana okunjalo. Ukuncipha kwesikhathi sokudlala kuyisiphumo esingcono nesilinganiselwayo, njengoba izinto zikhipha ngaphandle kwesikhathi eside sokulima noma ukusebenzisa izixhobo. Izindlela eziphuculiwe zakukhupha zidinga ukulima ngokugcwele ukuze kutholeke ubunzima obufanele ukukhupha ngempela, kodwa izibhamu eziphambili zokukhipha zivumela ukukhupha kwesikhathi esiphezulu lapho iplastics ikhona ubunzima obuhle. Lokhu kuvumela abawekwa ukulungisa izikhathi zokulima ngokulinganisa nezidingo zokubaluleka kakhulu ngenhloso yokukhupha, okwenzeka ukuncipha kwesikhathi ngokuphelele kusuka ku-15 kuze kube ngu-30% ngokulinganisa nezinkinga zezinto nezici zomlando. Ibhama lokukhipha iplastics ekususweni kwemfundo likhupha isikhathi esingasohlwa sekusheshwa ngokukhiqizwa kwentando yokunqama kakhulu okudinga ukucula kwemold noma ukulungisa okunqamayo. Ukunqamayo kakhulu kuthinta amandla okukhiqizwa ukuba kugcine amandla okucula ngemvula, iziqhamo, noma izindlela zokulima okuzimelela izikhathi ezibalulekile zokukhiqizwa futhi kungenza ukuthinta kakhulu kwemold engcono. Ukuqhathaniswa kwezibhamu kakhulu kuvumela ukusebenzisa kwezixhobo zokukhipha ezenziwa ngobuchwepheshe ezisebenza ngempumelelo ngaphandle kokuthintana komuntu noma ukulungisa kangakanani. Lezi zixhobo ezenziwa ngobuchwepheshe zakhupha izindleko zokukhiqizwa futhi zenza kube nzima ukugcina abantu ngokuthintana ngokushesha nezinto ne-molds ezisheshayo. Uhlaziyo lwesilinganiso lukhupha isikhathi sokuhlola futhi lukhupha izinyathelo ezidingekayo ukwahlukanisa izinto ezihle kuzo ezinezimba zeqembu noma izinkinga zemoto. Ibhama lokukhipha iplastics ekususweni kwemfundo livumela izimo ezifanelekile zokusebenzisa okwenzakala ukuthutha kwezindleko zokukhiqizwa nezinhlelo eziphambili. Kunciphwa isikhathi sokulungisa lapho kushintsha phakathi kwezinto ezahlukene noma izimboni, njengoba imold etholile ihlinzekwa kancane kunazo ezingatholanga izidingo ezinkulu zokucula noma ukulungisa. Izinyathelo zokusebenzisa amandla zitholakala ngokulungiswa kwemvumo yethemperature futhi kukuncipha kwemvuko yokunqama kakhulu kwezinto eziphakeme.

Ichemikhali enkulu yesilinganiso sangempela seplastic yokukhupha umthwalo kwasendlezeni yezokuthutha isebenza kakhulu ngokuvumelana kwezifundo zonke zeplastic eziqinile ngaphandle kokulahla izinhlobo ezithintekayo nezimfundo zobomi nasezinhlalweni ukwesekela imisebenzi esihlakaniphileyo. Ukuvumelana kwematerial kufakazela i-plastic ezigcineywa njenge-polyethylene ne-polypropylene, amapolimera asebenzini njenge-ABS ne-polycarbonate, namagugu akhethekile afaka i-fluoropolymers neplastic ezingena kumhlanga. Lokhu kukhetho okubanzi kususa ubadingo bekhasi lokusheda izinhlahla futhi kuyibala inkondlo yokuqashisa, ngelinye ihlo sisenza kube lula ukusebenzela kuwo wonke umthwalo. Umthwalo wamaphrojekthi weplastic ongenako ukungabi khanyayo kwasendlezeni yezokuthutha unikona indlela eyisisekelo emagugwini aphikisanayo ekuphileni konke kwayo nokuthinta okuphezulu. Ichemikhali enkulu yesilinganiso singakwazi ukulinganisa nezidingo ezahlukene zokusebenza, kufaka phakathi izinkomba ezahlukene, izilinganiso ezahlukene zokuhlanelwa, nezinhlobo ezahlukene zomoya ngaphandle kokulahla indlela yokukhupha. Ukuvumelana kudlula ukuvumelana kwezinhlahla zokuthutha ukuze kuhlangane nemagugu efanayo njengesteel, aluminum, nezincwadi ezikhethekile, ukusabela ukusebenza kuzo zonke izimo zezixhobo. Izici zomphakathi nesimilo zibonisa ukuthandwa okuphakade kwasendlezeni ngezemisebenzi esihlakaniphileyo kanye nezimfundo zokukhuseleka kwezisebenzi. Izilinganiso zasempeleni zamaphrojekthi weplastic yokukhupha umthwalo kwasendlezeni ziyigcina ivoli izinkinga ezivaleleyo zokuphuma kwayo ngelinye ihlo sizenza kube lula ukusebenzela. Abantu abaningi manje bafaka izimpahla ezibaleni kanye nezinhlahla ezingena kumhlanga ezinembalinga engaphezulu yokudonsa emhlabeni ngaphandle kokulahla izici zokusebenza. Izici zokungabi nomculo zilindela phansi kakhulu, nezilinganiso zenzelwe ukususa izimpahla ethintekayo ezingavumeleka umphumela ngokuphuzwa noma ukuthintana nozisebenzisi. Umthwalo wamaphrojekthi weplastic ongenako ukungabi khanyayo kwasendlezeni yezokuthutha kungenani iqhinga elingelindelekile lepH kanye nokungasebenzi chemikhali okungakathinti izinkundla ephawula izintlho noma izinto ezizimeleyo. Izindlela zokuthatha izimpahla zilandela izimiso zempilo yezimali ngaphandle kokudinga izindlela noma izici ezikhethekile. Izinxobo zokugcina zisetyenziswa izikhombisa ezingenakwenzeka kancipha kanye nezilinganiso eziningi okunciphisa impikiswano yokuthutha kanye nezidingo zokugcina. Ukuvumelanayo nezimiso zempilo zangempela kufaka phakathi FDA, REACH, neRoHS kusenzo kube lula ukuvumela kuyo yonke indawo kanye nesekela ukufinyelela kumazwe athengisa izinto ezenziwa ngalesi sizidingo sezilinganiso.