Sawubona konke umuntu! siyafunda ngokugijima ngeesetyenziso esincane elichaza low density polyethylene (noma LDPE ngokusho kwesicwangciso). Amanxoxo angenziwe kakhulu ngemva kwezikhathi zethu ezidingeki. Ukudla, ukukhangelwa kunye nekuphakamiswa kuyingenisa ukuba kube nenkululeko yonke imigomo yokusetyenziswa. LDPE: Isilinganiso esincane sesifazane seliphila esingaphansi kunye nokungathile kakhulu. Yilapho akwazi ukulindiza ngasinye ngaphandle kokuthi aqhele. Iplastiki le-LDPE siyisebenzisa ngemibono eminingi, ingenziwa ukwenza izinto ezininzi okuncane kwiigabheni lasekhethweni kunye nezinkambu zokuthela amanzi kunye namanxoxo angaphakathi.
Izicathulo esingekhoyo zase LDPE ezifanele kakhulu. Yokuqala, ukuthi kungakhothi kunomndeni okanye ngaphandle kokugcineni. Lolu hlobo lokusebenza ukuze sibheke amagcinde asebenza nge-LDPE, engenileyo kakhulu. Ukusuka kwe-LDPE kuhluke ngokubona ukukhuluma nokuphazamiseka, lokhu kuyisizo siphakamisa ukusebenzela izinto zokuthuthukisa ukuvumela abantu bengabangako ngasemva kwezinhlobo zokuthiwa. Kungavunyelwe futhi, ukuze sibheke phakathi kwesinye isikhatsi. Lokhu kufanele kwiizinto nemibhali, apho ufuna ukwazi ukuthi yini ngaphakathi. Iplastiki elincane lefutshane (LDPE) lisingekhoyo kwiintshango zethu ezinentsha, iishrink wrap esihlawulekileyo emfuyo wokudla kunye neebubble wrap ephathelayo amaqhawekazi odlamileyo. Ukusuka kwe-LDPE kuhluke ukwenza isiqembu somoya nokunciphiso, ukuze kusetyenziswa kwiichansi enhliziyo kunye nezipayiphi ezithuthukisa amanzi.
I-Polyethylene yedlulamene (LDPE) ngakwesiphi ndawo sinye inplastika ezikhoyo, futhi ngizobona kulesi sicwangciso esezisetyenziswa ngalo landlela. Ngokubanzi, kusenziwa ngokwesigaba zomzimba ezinikwe amadali emagrobhini, i-containers zokugcina isitshwenkqabi esihluke izinkomo zakho ezibekelwe, noma i-toys ezityenziswa. Ngaphandle kwalokho, i-LDPE kusenziwa njengekomponyenti kwi-Tupperware, amathari asebhomlobo, noma amafu amahhalele abasetsheni abasebenzisa ukuvavanya imifuno yawo. I-plastiki ye-LDPE iyishumi nesithoba esingabaliselwayo, futhi ungaze angazi ukuba ngapha i-LDPE iphethwe ngoba siyenza kakhulu!
Manje, ngokuqalele isihloko esidingiwe: umlayo wemayishe. Siyazi ukuthi umlayo wemayishe usizo olukhulu lomhlaba. Ngakwesonto, xa sikhipha imayishe emasotsheni, singabonisa ukuthi sifika ezi zikhathaluzi, ezincinci lokho kungaba ngenxa yokuba ayiphumeleyi. Kodwa, kungako imibono! Imayishe yase-LDPE iyahamba, eyisho ukuthi sizange sihlalekile kwaye sikwenze uphawu lokuhlala nokusetyenziswa phakathi kwesinye isikhathi sokubhaliweyo. Ngakho ke, ukufundziswa kukho ukuluma imayishe ukuze sikuyibuyise kulesi sikhatsi esingaphambili. Lokhu kuzoba kuhlala kakhulu kuhlanganisa ukuphawula komlayo wemayishe osikwenziwe. Ukungenza imayishe yase-LDPE kuhlanganisa ukuthi angazixazululeka iindlela eziningi zokugcina imayishe. Lokhu kungunye inye yenkulumo, ngoba kungako izinkomo zenqanawe ezizinsuku ezinamandla ezintshonalanga ezindala ezilindeleke. Njengamanje, bese ubone ukuthi kudinga ukusebenzela ukubhaliwa kwe-LDPE mayishe ngendlela engcono, futhi uzame ukufundziswa ngazo ngokuphi na. Lokhu kungakwazi ukusiza ukuthi omhlaba wethu uhlobene nokuthi uthole.
Kufanele uqaphelene ngeplastiki le-LDPE, sibona ngoku phakathi ukuthi plastiki le-LDPE alikhululekile kunye nezinye izinhlobo zeziphalasti. Ngokubanzi, iplastiki le-HDPE elithi high density polyethylene, elingasebenzi kakhulu nokuhlengana kulawo lapho alikho lokunxaseni njengesi-LDPE. Le-HDPE lisetshenziswa ngokubanzi kwiiphrodyakhti ezinomoya, futhi amabhophothi emncane we-milk, ngoba kudinga ukusihlwa esiphakeme. Inhlobo elilandelayo ye-plastiki kukhona okungaba ipolivinil khlorayide (PVC). Leli PVC lengenqanawe, ngoko ke luhluke ngokushesha, setshenziswa ngokubanzi ukwenza amaphayipepa nemiphawu. Kodwa, i-PVC lingathathwa ngokukhulu, kunye nokuba ungenxa lokulandelayo lwemfowethu. Lokhu kungaba kuyinto engcono yethu siyiqhuba ukubona ukuthi amaplastiki angamnye angenxa kanjani kwisebe sakethu, ngalokho kufanele sifundise ukuthi sihlale sesekwele umthetho wesikhatsi sokusetshenziswa kwezicatshulwa ezindala ezikhoyo ngokuphelele.
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