Okwangoku, ukusetyenziswa okuphambili kwei-polyethylenekwilizwe lam ziquka ifilimu, ukubumba ngenaliti, umbhobho, umngxuma, umzobo wentambo, intambo, i-metallocene, uphahla kunye nezinye iintlobo eziphambili.
Eyokuqala ukuthwala ubunzima, inxalenye enkulu yokusetyenziswa okusezantsi yifilimu. Kwishishini leemveliso zefilimu, eyona iphambili yifilimu yezolimo, ifilimu yemizi-mveliso kunye nefilimu yokupakisha imveliso. Nangona kunjalo, kwiminyaka yakutshanje, izinto ezifana nemiqathango kwiingxowa zeplastiki kunye nokuncipha okuphindaphindiweyo kwemfuno ngenxa yobhubhane ziye zabakhathaza ngokuphindaphindiweyo, kwaye bajongene nemeko ehlazisayo. Imfuno yeemveliso zeplastiki zemveli ezilahlwayo iya kuthatyathelwa indawo kancinci kancinci ngokusasazwa kweeplastiki ezibolayo. Abavelisi abaninzi befilimu nabo bajongene nophuhliso lwetekhnoloji yemizi-mveliso, kwaye baphuhlisa kancinci kancinci ukuya kwiifilimu zemizi-mveliso ezinokuphinda zisetyenziswe ezinomgangatho ophezulu kunye nokusebenza okuqinileyo. Nangona kunjalo, ngenxa yokonakala kweefilimu zeplastiki ezibolayo, kukho iimfuno ezinamandla zokupakisha ngaphandle, okanye imfuno yeefilimu zokupakisha zangaphandle ekufuneka zigcinwe ixesha elide ngaphaya kwexesha lokonakala, kwaye iifilimu zemizi-mveliso kunye nezinye iindawo azinakutshintshwa, ngoko ke iimveliso zefilimu ziya kusasetyenziswa. Ibikho njengemveliso ephambili esezantsi kwe-polyethylene ixesha elide, kodwa kunokubakho ukucotha kokukhula kokusetyenziswa kunye nokwehla kwenani.
Ukongeza, amashishini afana nokubumba inaliti, imibhobho, kunye neengxobo ezinxulumene kakhulu nemveliso kunye nobomi aza kuhlala eyimveliso ephambili yabathengi phantsi kwe-polyethylene kwiminyaka embalwa ezayo, kwaye aza kuhlala elawulwa ziziseko zophuhliso, izinto ezifunekayo zemihla ngemihla, kunye nezixhobo kunye nezixhobo zoluntu. Ukuphila kwabantu kunxulunyaniswa neempahla ezihlala ixesha elide, kwaye imfuno yokonakala kwemveliso iyancipha. Ingxaki ephambili ejongene nala mashishini angentla ngoku kukuba izinga lokukhula kwecandelo lezindlu liye lahlala limile kwiminyaka yakutshanje. Ngenxa yezinto ezifana nempendulo engalunganga malunga nendlela abemi abavakalelwa ngayo ngokutya okubangelwe ziintsholongwane eziphindaphindayo, uphuhliso lweshishini lemveliso lujongene nokumelana nokukhula okuthile. Ke ngoko, utshintsho kumlinganiselo wexesha elifutshane luncinci, aluchaphazeleki kakhulu ziimveliso zokonakala, ishishini lemibhobho linokuthi lichaphazeleke kakhulu yimigaqo-nkqubo, ngelixa ukubumba inaliti kunye neemveliso ezingenanto zichaphazeleka ngakumbi yindlela abemi abavakalelwa ngayo ngokutya, kwaye izinga lokukhula liya kuncipha ixesha elithile kwixesha elizayo.
Ngophuhliso oluqhubekayo lwesayensi netekhnoloji, ukwenziwa kwezinto ezintsha ngokweemfuno zabantu kunye nobuntu kwiimveliso zeplastiki, kunye nokuveliswa komgangatho wemveliso kunye neemfuno zemveliso ezenziwe ngokwezifiso nazo zihlala zikhula. Ke ngoko, kwixesha elizayo, ishishini leemveliso zeplastiki liya kwandisa imfuno yezinto ezithile eziphucula ukusebenza kweemveliso zeplastiki, ezifana neemetallocenes, iiplastiki eziqengqelekayo, izinto zokugquma kunye nezinye iimveliso ezinexabiso eliphezulu okanye iimveliso ezineemfuno ezikhethekileyo kwiindawo ezikhethekileyo. Ukongeza, ngenxa yemveliso eqokelelweyo yamashishini emveliso ye-polyethylene ephezulu kwiminyaka yakutshanje, okubangele ukuguqulwa okukhulu kwemveliso, kunye nengxabano phakathi kweRashiya ne-Ukraine phakathi konyaka ibangele amaxabiso aphezulu eoyile ukuba anyuse inzuzo ye-ethylene ephantsi, kwaye ukunyuka kweendleko kunye nokunikezelwa kubangele ukuhambelana okukhulu kwemveliso. Phantsi kwemeko yangoku, abavelisi be-polyethylene basebenza ngakumbi ekuveliseni iimveliso ezinexabiso eliphezulu ezifana neemetallocenes, ukubumba okujikelezayo, kunye nokugquma, ngokuhambelana nophuhliso lwamashishini asezantsi. Ke ngoko, izinga lokukhula kweemveliso linokunyuka ukuya kwinqanaba elithile kwixesha elizayo.
Ukongeza, njengoko ubhubhane uqhubeka ngokuphindaphindiweyo, kunye nophando nophuhliso lweemveliso ezintsha ngabavelisi, iifayibha ze-polyethylene, izixhobo ezikhethekileyo zemveliso yezonyango kunye neyokukhusela nazo ziyalandelwa kwaye ziphuhliswa kancinci kancinci, kwaye imfuno yexesha elizayo nayo iya kwanda ngokuthe chu.
Ixesha lokuthumela: Disemba-26-2022