Okwangoku, eyona ndlela iphambili yokusetyenziswa kwei-polyethylenekwilizwe lam ziquka ifilimu, ukubumba inaliti, umbhobho, umngxuma, umzobo wecingo, intambo, i-metallocene, i-coating kunye nezinye iindidi 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 zefilimu zeplastiki ezilahlwayo ziya kutshintshwa ngokuthe ngcembe kunye nokuthandwa kweeplastiki ezonakeleyo. 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 ukucotha ekukhuleni kokusetyenziswa kunye nokwehla komlinganiselo.
Ukongeza, amashishini afana nokubumba inaliti, imibhobho, kunye nemingxuma enxulumene ngokusondeleyo nemveliso kunye nobomi iya kuhlala iyeyona mveliso iphambili yabathengi ezantsi kwepolyethylene kule minyaka imbalwa izayo, kwaye isaya kulawulwa ziziseko, iimfuno zemihla ngemihla, kunye nezixhobo zoluntu. kunye nezixhobo. Ukuphila kwabantu kunxulunyaniswa nempahla ehlala ixesha elide, kwaye imfuno yokuthotywa kwemveliso iyancipha. Eyona ngxaki iphambili ejongene nale mizi mveliso ingentla ngoku yeyokuba izinga lokukhula kwecandelo lezindlu nezindlu liye ladodobala kule minyaka yakutsha nje. Ngenxa yezinto ezinje ngengxelo engeyiyo malunga noluvo lokusetyenziswa kwabahlali oluziswa ngubhubhani ophindaphindiweyo, uphuhliso loshishino lwemveliso lujongene nokuxhathisa okuthile kokukhula. Ngoko ke, utshintsho kwinxalenye yexesha elifutshane luncinci, luchatshazelwa ngaphantsi kweemveliso zokuthotywa, ishishini lombhobho linokuchatshazelwa kakhulu yimigaqo-nkqubo, ngelixa ukubunjwa kwenaliti kunye neemveliso ezingenanto zichatshazelwa ngakumbi yimvakalelo yokusetyenziswa kwabahlali, kunye nezinga lokukhula. iya kucotha ixesha elithile kwixesha elizayo elinokwenzeka.
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, i-polyethylene Abavelisi 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-26-2022