Yuezheng uyazi ukuthi lokushesha kulula ukwazi ukuthi ngaphandle kudingeka lowo muchedela olungaphansi kwalendawo lesi-sayensi (LDPE) ifuneka. LDPE yi-plastiki esincane esingabhedlise ekugcineni izinto eziningi. Ukhona nge-LDPE ngemibhalo jikelele, amabhedi, umxhano wokuphakamisa amacabi, amato, nokulandelana neziphi zezinto. Ukuba LDPE ungenzi ngokubhekelani, ngokuhluphekile kunye nokuflexibile, ukuthi kuyilinganiswa ngokuphelele kunesintshabaliso esidingeni, lokhu kukhole ngokushesha ukuthi LDPE uhamba ngokubheka. Kodwa isihloko sesi-LDPE sifumanekayo kakhulu ngokubhekisisa ngokuthi zinoma zingaphandle kudingeka, kunye nokuba zingaphezulu ezindaweni ezinentsha nezindlela.
Ukupheli kanye nezicatshulwa zase-LDPE zakungena ukuvavanya okuphambili lokugqibeleka. Ngakho, lapho wonke umntu bafuna ukuhlala nge-LDPE, kunalokhu akukho okuninzi okufuneka, isithuthi siphumelela ngaso. Isisekelo sikudinga amakhono okubonakali kakhulu kuhluke LDPE. Ngokugcineneyo, lapho i-LDPE iyinkosazana kunalokhu akufuneki, iziphi esikhatsi ziphuma phansi. Yilokhu ngoba izicatshulwa (njengelona kunjalo elikhona) kunye nekupheli (njengelona abantu babafuna) bayixoxisa ukukhetha lokugqibela.
Ngakho, ngicela sifundise isibonelo esingasinye. Uma umbhokisi wemali okubhulu kufuneka amabhedi eziqhelekileyo ezilondoloziwe kuzipha izinkozo zomncedo zakhe, bafuna ukulayishwa okupheleleyo ngeLDPE uma akuyisinga esikhatsini sesikadla. Bakhawuleza lokhu, kunye nezivandelu zabo zifuna lokho, baza kuhola lokho ukuze baphumelele amali apho afanele. Baye abafundiswa ukuthi kusenzeni ngempela umlando wosetyenziso nokugcina ngenxa yalokho. Ngokusho kwesibonelo, lokhu kungabizwa ngendlela yokuvela kokuba umlando wosetyenziso kunyani kuninzi.
LEDP iyinyanga eliphakathi leplastiki, futhi LEDP kusetshenziswa ukukhangela ngeplastiki eziningi. Lwesinye plastiki luhlala ngokubhedele ngeHDPE (High-Density Polyethylene), polypropylene (PP), kunye ne-polystyrene (PS). Imali yemkhathalento yaleplastiki eziningi ibizela ukuthi imali yesiLEDPli ngaphezu komnyama wesintshabalalo sawo, ngokusho HDPE kunye ne-PP.
Kungene kuhluke, ngokwesiphi, iinkomboni zesi-LDPE zingavariyela ngezinye izinto ezinikezela. Loko kulandelayo lizidinga izinto ezithile, njengemfani weziqondiswa kwe-LDPE kunye nezinto ezininzi ezinikezela ngenxa yalokho kuvunyelwe ekupheleni kwakho. Ngakho ke, ukufunda wonke amanani apha akuyimpendulo yokuba yini i-LDPE iyaphansi okanye iyiphakathi kumalethi eziphakathi.
I-LDPE ingasethwa ngemigomo eminingi. Lokhu kudinga ukuthi imigomo yezilandelana zikhona zibeza inkulumo enkulu kunye nokuthi zibuyelele amakhompiyuthi okusetyenziswa. Uma kubonakali ukuthi ukuhlawulwa kwe-LDPE kubonakali ukuthi iphuzu lethu libonakele leyiyo lokhu iphuzu lakhe laluhlaza kakhulu. Imigomo yesethenteni ezilandelayo zingamukela amarhawuli amaningi, lokuthi lizozibuyelela amakhompiyuthi ngakho. Yuezheng LDPE inethuthuko eliphambili kunye nemvelo ofanele ukuzindlula amakhompiyuthi. Lokhu kuhluke ukuthi amaphuzu angazixhasa, lokuthi lizoba kuhle kwezindlela.
Iphakamandi le-LDPE luhlanganiswa ngokuthi yikhotho elibonakalayo kwezinto ezikhoyo. I-Ethylene yi-khotho elithile elisetshenziswa ukwakhiwa komsebenzi we-LDPE. Ethylene ukuhlala kwemfula wemgca okanye i-petroleum. (LDPE usethenziswa ngokusebenzisa imfula wemgca okanye i-oi, ngakho ke amakhotsi akusethentha kuhluke kwi-LDPE uma ithole yemfula wemgca okanye i-oi uphumeleleyo. Kukhole xa amathuluzi angazange azobekwe ukusetshenziswa ukwenza i-LDPE.
Ikhophiyo ⓒ Yuezheng Plastic Color Masterbatch (Dongguan) Co., Ltd. Zonke iimvume zihlinzeki
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