Ushintsho lomthamo wokungenisa waseShayina kusukela ngo-2004-2021 lungabonakala ezigabeni ezine zomthamo wokungenisa we-PE waseChina kusukela ngo-2004, njengoba kuchazwe ngezansi.

Isigaba sokuqala singowezi-2004-2007, lapho isidingo saseShayina samapulasitiki sasiphansi futhi umthamo wokungenisa i-PE ugcina izinga eliphansi lokusebenza, futhi umthamo wokungenisa we-PE waseChina wawuphansi ngo-2008 lapho ukufakwa okusha kwasekhaya kwakugxilwe kakhulu futhi kuba nenkinga enkulu yezezimali.

Isigaba sesibili singowezi-2009-2016, ukuthengwa kwezimpahla zaseShayina kwe-PE kungene esigabeni sokukhula esizinzile ngemuva kokwenyuka okukhulu.Ngo-2009, ngenxa yokutakulwa kwezimali zangaphakathi nezangaphandle, i-liquidity yomhlaba wonke, umthamo wokuhweba wangaphakathi wanda, isidingo sokuqagela sasishisa, ukuthengwa kwamanye amazwe kwanda kakhulu, ngezinga lokukhula lika-64.78%, okulandelwa ukuguqulwa kwezinga lokushintshisana ngo-2010, i-RMB exchange. izinga liqhubekile nokuncomeka, kuhambisana ne-ASEAN Free Trade Area Isivumelwano sohlaka saqala ukusebenza futhi nezindleko zokungenisa ezweni zehliswa, ngakho ivolumu yokungenisa kusukela ngo-2010 kuya ku-2013 yahlala iphezulu futhi izinga lokukhula lagcina ukuthambekela okuphezulu.Ngo-2014, amandla amasha okukhiqiza asekhaya e-PE anda kakhulu, futhi ukukhiqizwa kwempahla yasekhaya okuhloswe jikelele kwanda ngokushesha;ngo-2016, iNtshonalanga iphakamise ngokusemthethweni unswinyo e-Iran, futhi imithombo yase-Iranian yayizimisele kakhulu ukuthekelisa eYurophu ngamanani aphezulu, ngaleso sikhathi ukukhula kwevolumu yokungenisa yasekhaya yehla.

Isigaba sesithathu yi-2017-2020, ivolumu yokungenisa kwe-PE yaseChina iphinde yavuka kakhulu ngo-2017, umthamo wokukhiqiza we-PE wasekhaya nakwamanye amazwe uyakhula futhi ukukhiqizwa okugxilwe kakhulu phesheya kwezilwandle, i-China, njengezwe elikhulu elidla i-PE, namanje iyindawo ebalulekile yokukhiqiza amandla okukhiqiza emhlabeni. khulula.Ngo-2017 kusukela ekukhuleni kwevolumu yokungenisa kwe-PE yaseChina kukhuphuke kakhulu, kuya ku-2020, imishini emisha yaseChina yokucwenga kanye ne-hydrocarbon ekhanyayo yethulwe, yasekhaya Kodwa-ke, ngokombono wokusetshenziswa, isidingo saphesheya kwezilwandle sithinteka kakhulu "ubhubhane olusha lomqhele", kuyilapho. isimo sokuvimbela nokulawula ubhubhane lwaseChina sizinzile futhi isidingo sihola ekubuyiseni, izinsiza zaphesheya zithambekele kakhulu ekuhlinzekeni imakethe yamaShayina ngamanani aphansi, ngakho-ke umthamo wokungenisa we-PE waseChina ugcina ukukhula okuphakathi nokuphezulu, futhi ngo-2020 i-PE yaseChina umthamo wokungenisa ezweni ufinyelela kumathani ayizigidi eziyi-18.53.Kodwa-ke, izici ezishukumisayo zokwenyuka kwevolumu yokungenisa kwe-PE kulesi sigaba ngokuyinhloko ezokusetshenziswa kwezimpahla esikhundleni sokuqhutshwa isidingo esiphuthumayo, futhi kancane kancane kuvela ingcindezi yokuncintisana evela ezimakethe zasekhaya nezaphesheya kwezilwandle.

Ngo-2021, inkambiso yokungenisa kwe-PE yaseChina ingena esigabeni esisha, futhi ngokwezibalo zamasiko, ivolumu yokungenisa kwe-PE yaseChina izoba ngamathani ayizigidi eziyi-14.59 ngo-2021, yehle ngamathani ayizigidi ezingu-3.93 noma ama-21.29% kusukela ngo-2020. Ngenxa yethonya lobhubhane lomhlaba wonke, amazwe ngamazwe umthamo wokuthumela uqinile, izinga lokuthutha olwandle likhuphuke kakhulu, lidlula ngethonya lentengo ephambene ye-polyethylene ngaphakathi nangaphandle kwemakethe, ivolumu yokungenisa ye-PE yasekhaya izoncishiswa kakhulu ngo-2021. 2022 amandla okukhiqiza e-China azoqhubeka nokukhula, iwindi le-arbitrage ngaphakathi nangaphandle kwemakethe kusenzima ukuyivula, umthamo wokungenisa we-PE wamazwe ngamazwe uzohlala uphansi, futhi umthamo wokungenisa waseChina we-PE ungase ungene esiteshini esiya phansi esikhathini esizayo.

Kusukela ngo-2004-2021 ivolumu yokuthekelisa ye-PE yase-China yohlobo ngalunye, inani eliphelele lokungenisa kwe-China PE liphansi futhi i-amplitude inkulu.

Kusukela ngo-2004 kuya ku-2008, umthamo wokuthekelisa we-PE waseChina wawuphakathi kwamathani ayi-100,000.Ngemuva kukaJuni 2009, isilinganiso sikazwelonke sesaphulelo sentela yokuthekelisa kwamanye amapulasitiki kanye nemikhiqizo yawo, njengamanye ama-ethylene polymers amise okuyisisekelo, akhushulelwa ku-13%, futhi umdlandla wasekhaya wokuthekelisa we-PE wanda.

Ngo-2010-2011, ukwanda kokuthekelisa kwe-PE yasekhaya kwakusobala, kodwa ngemva kwalokho, ukuthekelisa kwe-PE yasekhaya kuphinde kwabhekana ne-bottleneck, naphezu komthamo wokukhiqiza wasekhaya we-PE, kusenegebe elikhulu e-China PE, futhi kunzima ukuba nayo. ukwanda okukhulu kokuthekelisa okusekelwe ezindlekweni, isidingo sekhwalithi kanye nezingqinamba zezimo zokuthutha.

Kusukela ngo-2011 kuya ku-2020, ivolumu yokuthunyelwa kwe-PE yaseChina yancipha kancane, futhi umthamo wayo wokuthekelisa wawuphakathi kwamathani angama-200,000-300,000.Ngo-2021, inani lokuthekelisa kwe-PE yaseChina lenyuka, futhi inani eliphelele lokuthunyelwa kwempahla kwamanye amazwe lafinyelela kumathani angama-510,000, okuwukunyuka kwamathani angama-260,000 uma kuqhathaniswa no-2020, okuwukunyuka ngo-104% unyaka nonyaka.

Isizathu siwukuthi ngemva kuka-2020, izitshalo ezinkulu zaseChina zokucwenga kanye nezilula ze-hydrocarbon zizokwethulwa phakathi nendawo, futhi amandla okukhiqiza azokhishwa ngempumelelo ngo-2021, futhi ukukhiqizwa kwe-PE yaseChina kuzokhula, ikakhulukazi izinhlobo ze-HDPE, ngezinsiza ezengeziwe ezihlelelwe izitshalo ezintsha futhi zanda. ingcindezi yokuncintisana emakethe.Ukunikezwa kuyaqina, futhi ukuthengiswa kwezinsiza ze-PE yaseShayina eNingizimu Melika nakwezinye izindawo kuyanda.

Ukukhula okuqhubekayo kwamandla okukhiqiza kuyinkinga enkulu okufanele kubhekwane nayo ngasohlangothini lokuhlinzekwa kwe-PE yase-China.Okwamanje, ngenxa yezinkinga zezindleko, isidingo sekhwalithi kanye nezimo zokuhamba, kusenzima ukuthumela i-PE yasekhaya, kodwa ngokukhula okuqhubekayo kwamandla okukhiqiza asekhaya, kubalulekile ukulwela ukuthengisa phesheya.Ingcindezi yokuncintisana kwe-PE emhlabeni jikelele esikhathini esizayo iya ngokuya iba nzima, futhi iphethini yokuhlinzeka nokufunwa ezimakethe zasekhaya nezangaphandle zisadinga ukunakwa okwengeziwe.