Kwi-polyethylene-polypropylene yeeteknoloji yecandelo lezobuchwephesha kumzi-mveliso kunye neqonga lezeshishini eliququzelelwe yi-IHS Markit ekupheleni kuka-Agasti, abahlalutyi bachaza ukuba ngenxa yokuphulukana nokukhula kwebango kunye nokugunyaziswa ngokulandelelana kwamandla, i-polyethylene (PE) yehla kwi-1980s Inqanaba eliphantsi elibonakalayo. Imeko efanayo iya kwenzeka kwimarike ye-polypropylene (PP). IHS Markit iqikelela ukuba ukusuka kwi-2020 ukuya kwi-2022, amandla emveliso emitsha e-PE aya kudlula ekukhuleni kwebango le-10 yezigidi zeetoni ngonyaka. Ukuthathela ingqalelo ukuba ubhubhane wesithsaba somoya omtsha ubethile ukukhula kulo nyaka, ukungalingani phakathi konikezelo kunye nemfuno kwi-2021 kuya kuba kubi kakhulu, kwaye oku kungalingani kuya kuqhubeka ubuncinci kude kube yi-2022-2023. Ukuba unikezelo kunye nemfuno yemeko inokukhula ngendlela esilindele ngayo, inqanaba lomthwalo womgangatho wokusebenza we-PE unokuhla phantsi kwe-80%.
UNick Vafiadis, usekela-mongameli we-IHS Markit kwishishini leplastikhi, uchaze ukuba ukusasazeka kwesifo esitsha sesifo sesifo sokukrala kwemiphunga kuphantse kwalutshabalalisa ukwanda kwemfuno yehlabathi ngaphambili. Ukuhla kwamaxabiso eoyile ekrwada kunye ne-naphtha kukwatyhafisile ixabiso lamaxabiso ebelifudula lithandwa ngaphambili ngabavelisi baseMntla Melika nakuMbindi Mpuma. Ngenxa yokuncipha kweendleko zemveliso, aba bavelisi bazimisile iiprojekthi ezintsha kwaye bazimisa iiprojekthi ezibhengeziweyo. Kwangelo xesha, njengoko imbambano yorhwebo yase-US-China iyancipha imihla ngemihla, imakethi yaseTshayina iyavulwa kwakhona kubavelisi baseMelika baseMelika, kwaye ukunyuka kokuthenga kwi-Intanethi kuye kwanyusa nemfuno yokupakishwa kwe-PE. Kodwa ezi zongezo zintsha azikhange ziyiphelise ngokupheleleyo ilahleko yentengiso. IHS Markit iqikelela ukuba ibango lonyaka le-PE limalunga ne-104.3 yezigidi zeetoni, zehle nge-0.3% ukusuka ngo-2019. UVafiadis wabonisa: "Ekuhambeni kwexesha, isithsaba somoya esitsha sesifo sokuphefumla siza kuthi ekugqibeleni siphele kwaye namaxabiso ezamandla aya kunyuka. Nangona kunjalo, amandla isithsabasengculaza yinyumoniya yingxaki yolwakhiwo, eya kuthi ichaphazele inzuzo kwishishini kangangexesha elithile. "
Kule minyaka mi-5 idlulileyo, umlinganiso womgangatho wokusebenza kwe-PE ugcinwe kwi-86% ~ 88%. UVafiadis uthe: "Ukwehla kwenqanaba lomthwalo kulindeleke ukuba kubeke uxinzelelo kumaxabiso nakwimida yenzuzo, kwaye akuyi kubakho kuphulukana ngenene ngaphambi kowama-2023."
UJoel Morales, umlawuli olawulayo wee-polyolefins kwi-IHS Markit Americas, uthe imakethi ye-polypropylene (PP) nayo ijongene nesimo esifanayo. Kulindeleke ukuba u-2020 ube ngunyaka ocela umngeni kakhulu kuba ubonelelo lungaphezulu kweemfuno, kodwa ukusebenza kwamaxabiso e-PP kunye nemida yenzuzo ingcono kakhulu kunokuba bekulindelwe.
Kuqikelelwa ukuba ibango le PP lehlabathi liyakonyuka malunga ne 4% ngo 2020. "Imfuno ye resin ye PP ikhula ngoku izinzile, kwaye umthamo omtsha eTshayina nakuMntla Melika ulibazisekile ngokomyinge weenyanga ezi-3 ukuya kwezi-6." Utshilo uMorales. Ukusasazeka kwesifo sesithsaba esitsha kubethe kakhulu ishishini lezemoto, elenza malunga ne-10% yebango le-PP lehlabathi. UMorales uthe: "Imeko yonke yentengiso yemoto kunye nemveliso iya kuba ngowona nyaka mbi. Silindele ukuba imfuno yemoto eYurophu naseMntla Melika yehle ngaphezulu kwama-20% kwinyanga ephelileyo." Imakethi isekwixesha lotshintsho, kwaye kulindeleke ukuba kubekho iinkampani ezingama-20 ngonyaka ka-2020. Isityalo sinamandla apheleleyo okuvelisa iitoni ezizizigidi ezi-6 ngonyaka. Ukuphela kwalo nyaka, uxinzelelo kwimarike lusenzima kakhulu. Kuqikelelwa ukuba ukusuka ku-2020 ukuya ku-2022, amandla amatsha e-PP resin aya kudlula kwimfuno entsha ye-9.3 yezigidi zeetoni ngonyaka. UMorales uchaze ukuba uninzi lwezi zinto zise China. "Oku kuyakubeka uxinzelelo kubavelisi abajolise e-China kwaye bavelise amandla kwilizwe lonke. Kulindeleke ukuba imakethi isazokujongana nemiceli mngeni ngo-2021."
