Uyazi into?Linear low density polyethyleneukuba? Manje, ibonisa ngokubhutheka kakhulu kungene ngezinhlelo ezidingekileyo, kodwa usondezele lokugcina ukuthi uphinde uzobona! Iphrodyakhti yehlukene, futhi umshini wethu, Yuezheng, uyavamile imaterelya leyiwenziwe ngeminyaka emingi ngalokhu olungaphandle latho. Lwesicatshulwa lwakho lizoba uqale ukufunda nge-LLDPE—uyini, ukuthi ubanjwa ngenxa yini, phakathi pakamane apho uzothola kwiitemu eziphumayo kulesi sikhathi sezokusebenza, kunye nokuthi siyifake ngasekhaya setikhetfo sethu.
Yindawo yakwesiqephu esezisetyenziswa ngokubanzi kwiiphrodyakhti ezinayo manje yi linear low density polyethylene resin, noma LLDPE. Iziqu zeLLDPE zisetyenziswa ngokubanzi kuhlala ukwenza amaxesha amacala okanye amasheethi. Kuningi luchazwe njenge-“linear” ngoba imibuzwana yawo—ezaziqashelwa njengamolekule—zihamba ngumncane elincinci. Ngakho ke, xa uvakasha abantu abafundelela ngokugijima kweLLDPE, yinto engeziwayo ngokuba le ndlela yokusetyenziswa iyayithola into engingatholakalo kunye neziphrodyakhti eziningi. Njengendawo, i-LLDPE ingaphilile kakhulu kwegama lakhe HDPEhigh density polyethylene kunye nokuthi low density polyethylene, i-LDPE. I-LLDPE ingaphindaphinda, ingamandla kunye nokuthi izingane, futhi ubungena bokuphela.
U-LDPE ulunye lwamahla wokuqinisekisa, yinto engakho lokhu ngokusho ukuthi uyihhashi noma ungenziwe kakhulu. Ukuthi ukuhlala kakhulu kungene kwindawo yokugcina okufuneka ugcine ngaphandle kokubhuki. Phikisana nokuhlala kakhulu emuva kwesikhatsi; lokhu kungaba ngokwesiphi u-LDPE usebenzisa! Ungakwazi ukugcina zonke izinto kusukela izibayi kwiqhopheni. U-LDPE ungakho lomkhonto olungaphansi, uprotekisa amandla akhe apha esetshenziswa ndawonye. Ngokusho, ayiphumeleli ukuphuma imibuzo nemikheli engazimiselwa ngaphandle kokuvumelanisa. Lokhu kulula kakhulu ukuthi u-LDPE uhlelwa kakhulu ukusebenzisa izingane.
Kunezinyathelo ezincane ezizama ukuba kuhle ukusetshenziswa kwe-LDPE phakathi kwezinye izinto, njengemaglass nezimpapar, zonke izinto ezifanayo. Ngakho xa kuhlelo lokho, isigaba sokuqinisekisa sokuthi u-LDPE usuka ngendlela engekho inani elikhulu. Lokhu kukholela ukuthi angavame inani leziphroduct ezisetshenziswa noma ziyindlu zezimali. Izinto ezinempumelelo ezinempumelelo zingakwazi ukulindiza ukuthi asetyenziswa inkanyezi ngokuthi zinempumelelo, lokhu kungaba lokulula kakhulu kwenkulumo.
uLLDPE ayiqondisiwe ngaphandle kwezicelo zokuphakamisa, usebenzisa ngaphezulu kakhulu eminyakeni ethile. Ngokugcinwa, i-pond liners ezifundekethwe amanzi kunye ne-greenhouse covers ezisihlanzelwe izincane zemibha kusenzo esingazixhasa kufika kulesi sikhathi singasetyenziswa ukuze kwenziwe kwe-LLDPE. Usetyenziswa kwegeosynthetics, ngokubalulekile kwe-geomembranes kunye ne-geotextiles kwiqolo lomthwalo, idam, kunye nesikhwama somncedisi okuningi. Ukusetshenziswa kwe-LLDPE kwindawo yokubheka Okushona ukusetshenziswa kwe-LLDPE kwindawo yokubheka yoncamulo yokuqala yezinto ezisetshenziswa ngendlela yokuhlola yoncamulo yeyokuba iyisebenza ngokulandelana nokuthi ingenziwa amasindi amacayishoni, ibegi, kunye nezinye izinto ezinahlonganiswe ngokukhathalelwa. Isigaba sesithunzi, ngokubalulekile, isetshenziswa ukuze kwenziwe amasitolo, amaphaneli wezolo kunye namabhedethe wasekhombi, wonke amanye amandla aphantsi akhona.
Mane sithi siyazi ukuthi ubani LLDPE kunini kanye nokuthi siphumelela yini, hayi sibheke ngaphaya ukuthi sifundza ngapha! Umphathiso wokuphawula kuphawula kusetyenziswa ukuze sihloshwe LLDPE. Lokhu lisebenzi elincane lokuthi sikhetha igashi lethileni lophumeleya esebenza phakathi kwezinkqubo ezikighubu nezindawo ezincongqopheni. Ukuthi lokhu kuhlelwa umsebenzi okulandelayo okuba amakhulu amakhulu angaba amagama amadala apha ahlukene ngeplastiki. Ngokwesikhatsi sokugcina lokhu, umsebenzi owavumelwe ungacabangisela ngemibhalo okanye ungenziwa ngamabhango emingca, njengemiphati zehhashi eziphumayo.
Ngakho siphumelela into enikwe imigomo yokuhlola ukusebenzisa LLDPE ukuze sihlanganise ngomusho. Lokhu kungaba sikhetha LLDPE, sikhamba kwaye siphuma ngaphambili ngendlela engafuneki. Njengamanje, sikhetha ngokuthi sibhalise LLDPE nenkinga ezininzi ukuthi sikwenze izinto zakho zokuphatha. Ngokwesikhatsi, singabuyekeza, singadibanisa umbala, singahamba ngokubheka okanye singazihlabelela ngokubhekana nokuthi singalindelele ngokuphambili.
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