Okwangoku, umthamo wokusetyenziswa kwe-polyethylene kwilizwe lam likhulu, kwaye ukuhlelwa kweentlobo ezisezantsi zinzima kwaye zithengiswa ngokuthe ngqo kubavelisi bemveliso yeplastiki.Yeyokuba inxenye yemveliso iphelela kumjelo osezantsi we-ethylene.Xa kudityaniswa nempembelelo yoxinzelelo lwengingqi yosetyenziso lwasekhaya, unikezelo lwengingqi kunye ne-gap yemfuno ayilingani.
Ngokwandiswa okugxininisiweyo komthamo wemveliso welizwe lam loshishino lwepolyethylene phezulu kumlambo kwiminyaka yakutshanje, icala lokubonelela liye landa kakhulu.Kwangaxeshanye, ngenxa yokuphuculwa okuqhubekayo kwemveliso yabahlali kunye nemigangatho yokuphila, imfuno yabo iye yanda ngokuthe ngcembe kwiminyaka yakutshanje.Nangona kunjalo, ukusukela kwisiqingatha sesibini sika-2021, imeko yezizwe ngezizwe iye yaba nobuqhophololo kwaye iyatshintsha.Ukusasazeka kobhubhane kunye neemfazwe zasekhaya kukhokelele ekungalinganini kumyalelo wemali wamandla-mali wamazwe ngamazwe.ukuwa.Ukwanda kokungaqiniseki kuqoqosho olukhulu kuqhube iimvakalelo zokusetyenziswa kwabahlali kwinqanaba lokuqaphela.Ngaphantsi kwemeko yangoku, imingcipheko kunye nemingeni ejongene nokuphuhliswa kweemveliso ze-polyethylene nazo zinzima kakhulu.
Uphuhliso lwabemi kunye noqoqosho lumisela ukuhanjiswa kokusetyenziswa kwe-PE.Ukususela kumbono wemimandla yokusetyenziswa kwezantsi, i-East China, i-South China, kunye ne-North China yizona ndawo zisetyenziselwa ukusetyenziswa kwe-polyethylene ephantsi kwelizwe lam, kwaye iya kuhlala iphezulu emithathu ngokubhekiselele ekusebenziseni ixesha elide.Nangona kunjalo, ngokuphehlelelwa okuqhubekayo kwezixhobo ezitsha zemveliso kwixesha elizayo, kulindeleke ukuba i-gap yokusetyenziswa kwiindawo ezintathu eziphambili zokusetyenziswa iya kuncitshiswa ukuya kumlinganiselo othile.Kulindeleke ukuba oku kuya kuchaphazela kakhulu unikezelo lwexesha elizayo kunye nepateni yemfuno kunye nokuhamba kwemveliso kwiingingqi ezinkulu.Kukwafanelekile ukukhankanya ukuba nangona umlinganiselo wemfuno esezantsi kummandla osentshona uncinci kune-East China, i-South China, kunye ne-North China, eqhutywa yimigaqo-nkqubo yasekhaya efana ne "Ibhanti enye, iNdlela enye" kunye "noPhuhliso lwaseNtshona", ukusetyenziswa okusezantsi kwe-polyethylene kummandla osentshona kuya kunyuka kwixesha elizayo.Kukho ukwanda okulindelweyo, ngakumbi kwiimveliso zemfuno yeziseko zophuhliso ezikhokelwa yimibhobho, kwaye imfuno yokubumba inaliti kunye neemveliso zokubumba ezijikelezayo eziziswa kukuphuculwa okuqhubekayo komgangatho wobomi kubonakala ngakumbi.
Emva koko, malunga neentlobo zokusetyenziswa kwezantsi kwikamva, luhlobo luni lophuhliso olulindelekileyo oluya kuba nemfuno ephambili yeentlobo ze-polyethylene?
Okwangoku, eyona ndlela iphambili yokusetyenziswa kwe-polyethylene kwilizwe lam ibandakanya ifilimu, isitofu sokubumba, umbhobho, umngxuma, umzobo wocingo, intambo, i-metallocene, i-coating kunye nezinye iintlobo eziphambili.
Eyokuqala ithwele ubunzima, elona candelo likhulu lokusetyenziswa komlambo yifilimu.Kwishishini lemveliso yefilim, eyona nto iphambili yifilimu yezolimo, ifilimu yeshishini kunye nefilimu yokupakisha imveliso.Nangona kunjalo, kwiminyaka yakutshanje, izinto ezinje ngezithintelo kwiingxowa zeplastiki kunye nokuncipha okuphindaphindiweyo kwemfuno ngenxa yobhubhani baye babakhathaza ngokuphindaphindiweyo, kwaye bajongene nemeko ehlazo.Imfuno yeemveliso zeplastiki ezilahlwayo zemveli ziya kutshintshwa ngokuthe ngcembe kunye nokuthandwa kweeplastiki ezinokonakala.Uninzi lwabavelisi beefilimu nabo bajongana nezinto ezintsha zetekhnoloji yemizi-mveliso, kwaye ngokuthe ngcembe baphuhlisa ukuya kwiifilimu ezinokuphinda zisetyenziswe kwimizi-mveliso ezinomgangatho owomeleleyo kunye nokusebenza.Nangona kunjalo, ngenxa yokonakala kweefilimu zeplastiki ezinokonakala, kukho iimfuno ezinamandla zokupakishwa kwangaphandle, okanye imfuno yeefilimu zangaphandle zokupakisha ezifuna ukugcinwa ixesha elide ngaphaya kwexesha lokuthotywa, kunye neefilimu zemizi-mveliso kunye nezinye iindawo ezingenakuphinda zibuyiselwe, ngoko iimveliso zefilimu zisaza kusetyenziswa.Ikhona njengeyona mveliso iphambili ezantsi kwe-polyethylene ixesha elide, kodwa kunokubakho ukuncipha kokukhula kokusetyenziswa kunye nokwehla komlinganiselo.
Ukongeza, amashishini afana nokubumba inaliti, imibhobho, kunye nemingxunya enxulumene ngokusondeleyo nemveliso kunye nobomi iya kuba iseyeyona mveliso iphambili yabathengi ezantsi kwepolyethylene kule minyaka imbalwa izayo, kwaye isaya kulawulwa ziziseko zophuhliso, iimfuno zemihla ngemihla, kunye noluntu. izixhobo kunye nezixhobo.Ukuphila kwabantu kunxulunyaniswa nempahla ehlala ixesha elide, kwaye imfuno yokuthotywa kwemveliso iyancipha.Okwangoku, eyona ngxaki iphambili ejongene nala mashishini angasentla kukuba izinga lokukhula kwecandelo lezindlu nomhlaba liye ladodobala kwiminyaka yakutshanje.Ngenxa yezinto ezinje ngengxelo engeyiyo malunga noluvo lokusetyenziswa kwabahlali oluziswa ngubhubhani ophindaphindiweyo, uphuhliso loshishino lwemveliso lujongene nokuxhathisa okuthile kokukhula.Ngoko ke, utshintsho kwisahlulo sexesha elifutshane luncinci, kwaye aluchatshazelwa kangako yimveliso yokuthotywa.Ushishino lwemibhobho lunokuchatshazelwa kakhulu yimigaqo-nkqubo, ngelixa ukubunjwa kwenaliti kunye neemveliso ezingenanto zichatshazelwa ngakumbi yimvakalelo yokusetyenziswa kwabahlali, kwaye isantya sokukhula siya kuthoba kwikamva.kunokwenzeka.
Ngophuhliso oluqhubekayo lwesayensi kunye nethekhinoloji, ukwenziwa komntu ngamnye kunye nokuqulunqwa kwabantu kwiimveliso zeplastiki, kunye nokuveliswa kwezinto ezintsha zomgangatho wemveliso kunye neemfuno zemveliso ezilungiselelweyo nazo zihlala ziphuhliswa.Ke ngoko, kwixa elizayo, ishishini leemveliso zeplastiki liya kwandisa imfuno yezinto ezithile ekrwada eziphucula ukusebenza kweemveliso zeplastiki, njenge-metallocenes, iiplastiki eziqengqelekayo, izinto zokwaleka kunye nezinye iimveliso ezinexabiso elongezelelweyo okanye iimveliso ezineemfuno ezizodwa kwiinkalo ezikhethekileyo. .Ukongeza, ngenxa yemveliso egxininisiweyo yamashishini emveliso ye-polyethylene enyukayo kwiminyaka yakutshanje, okubangele ukuguquguquka okukhulu kwemveliso, kunye nongquzulwano phakathi kweRussia neUkraine enyakeni kubangele amaxabiso aphezulu e-oyile ukuba anyuse ingeniso ye-ethylene, kunye nokunyuka kweendleko. kunye nokubonelela kubangele i-homogeneity yemveliso enzulu.Ngaphantsi kwemeko yangoku, abavelisi be-polyethylene basebenza ngakumbi ekuveliseni iimveliso eziphezulu zexabiso elongezelelweyo ezifana ne-metallocenes, ukubunjwa okujikelezayo, kunye neengubo, ngokuhambelana nophuhliso lwamashishini asezantsi.Ke ngoko, izinga lokukhula kweemveliso linokunyuka ukuya kuthi ga kwinqanaba elithile kwixesha elizayo.
Ukongeza, njengoko ubhubhane uqhubeka ngokuphindaphindiweyo, kunye nophando kunye nokuphuhliswa kweempawu ezintsha ngabavelisi, iifayili ze-polyethylene, izixhobo ezikhethekileyo zonyango kunye nokukhusela imveliso ekhethekileyo ilandelwa ngokuthe ngcembe kwaye iphuhliswe, kwaye imfuno yexesha elizayo nayo iya kwanda ngokuthe ngcembe.
Ixesha lokuposa: Dec-06-2022