Ukuguquguquka kweendleko zeoyile ekrwada kutshanje kuye kwabangela ukuba imvakalelo yemarike iphazamiseke. Amaxabiso eoyile ekrwada ngamazwe ngamazwe anciphe emva kokunyuka okungaqhelekanga, nto leyo eyenza ukuba inkxaso yeemvakalelo ibe buthathaka kwimarike yeekhemikhali. Ngelixa uthungelwano lweplastiki kunye neekhemikhali lwexesha elifutshane lubona ukuhla okuncinci, abasebenzisi bokugqibela babonisa ukumelana okukhulu nezinto ezikrwada ezibiza kakhulu. Ihlushwa luxinzelelo olukhulu lwezinto ezisetyenzisiweyo, i-PVC ayisebenzi kakuhle kuthungelwano lwemizi-mveliso iyonke.
Uluhlu lwezinto ezithengiswayo kwi-PVC lukwi-1.374 yezigidi zeetoni, lufikelela kwi-0.20% inyanga nenyanga kwaye lunyuke nge-70.63% unyaka nonyaka. Ngokutsho kweLongzhong Data, ukusukela nge-26 kaMatshi, iintsuku zokuthengiswa kwezinto ezithengiswayo kwimveliso yabavelisi bePVC baseTshayina zehle nge-6.67% inyanga nenyanga zaya kwiintsuku ezi-5.6, njengoko izinto ezithengiswayo zithunyelwa kakhulu kwiimarike zasekhaya nezangaphandle. Imvakalelo yemarike isaguquguquka, abasebenzisi bokugqibela bechasa ngokuqinileyo amaxabiso aphezulu.
Uxinzelelo olude lwezopolitiko kunye nokuguquguquka kwemvakalelo yemali kugcina imakethi ikwimfazwe phakathi kokuqikelela kwezopolitiko kunye nokufumana inzuzo. Nangona kufika ixesha lemfuno ephezulu yekhonkco lokubonelela ngeplastiki kunye neekhemikhali, ukumelana kwamashishini okugqibela kwizixhobo eziluhlaza ezibiza kakhulu kunciphisa ukusebenza kokubonelela kunye nemfuno yePVC, okukhokelela kuxinzelelo olukhulu lokuthengisa ngemini. Ukuncipha kokubonelela kusabonelela ngenkxaso eqinileyo yexesha elifutshane, kodwa amaxabiso aphezulu ayinciphisile kakhulu injongo yokuthenga esezantsi, ecinezela imfuno kwaye edala impendulo engalunganga ephawulekayo kwicandelo lezemizi-mveliso.
Ngaphandle kwesigqibo esicacileyo sengxabano phakathi kwe-US ne-Iran, ukuguquguquka kwemarike kuye kwanda phakathi kokungaqiniseki okwandayo. Xa sijonga iChangzhou (eMpuma China) njengomlinganiselo, ixabiso lemali eliqingqiweyo le-PVC SG-5 (ukuthathwa kwempahla yokugcina impahla) eMpuma China lehle ngama-50 CNY/ton ukusuka kusuku oludlulileyo laya kuma-5,450 CNY/ton. Imarike ye-PVC isazinzile kancinci ngokuncipha okuncinci kwamaxabiso entengiselwano; ixabiso lemali le-PVC SG-5 (ukuthathwa kwempahla yokugcina impahla) eMpuma China liqala kuma-4,450 ukuya kuma-4,550 CNY/ton, ngelixa iintengiselwano ze-PVC ezisekelwe kwi-ethylene zivulelekile ukuba zithethelelwe. Imvakalelo yemarike yexesha elifutshane icinezelwa kabini ngokunciphisa uxinzelelo lwangaphandle lwezopolitiko kunye nolindelo lokubonelela ngemarike okwaneleyo, ngesiseko sesivumelwano se-PVC May eMpuma China siqala kuma--50 ukuya kuma--150 CNY/ton.
Ngenxa yengxabano yaseMbindi Mpuma, ukunikezelwa kwezinto eziluhlaza kwifektri yokucocisa umhlaba kuye kwaqina kakhulu. Uninzi lwezityalo ze-chlor-alkali zaphesheya kwezilwandle ziye zanciphisa imithwalo yemveliso, ezinye zavalwa ngenxa yokunqongophala kwezinto eziluhlaza. Abavelisi abakhulu kuquka iHanwha, i-Indonesia ASC, iThailand SCG kunye neFormosa Plastics bonke babhengeze ukuncitshiswa okanye ukuvalwa kwemveliso. Okwangoku, ukupheliswa kwezinye iindawo zokucocisa zamazwe ngamazwe kunye nokuvalwa kwezityalo ezisezantsi ezisekelwe kwi-ethylene kukhokelele ekuncipheni okukhulu kokunikezelwa kwePVC kwihlabathi liphela, nto leyo ebonisa ukuba iChina ithumela iimveliso zayo ngaphandle kwePVC.
Kwicala lasekhaya, ingxabano yaseMbindi Mpuma ithintele ukungeniswa kwe-ethylene, inyusa umngcipheko wokunciphisa imveliso okanye ukuvalwa kwezityalo ze-PVC zasekhaya ezisekelwe kwi-ethylene kwaye ikhuthaza amathemba okuncipha kokunikezelwa kwemveliso zasekhaya. Ulindelo lokuncipha kokunikezelwa kwemveliso kwihlabathi liphela luye lwabangela ukunyuka okukhulu kwamaxabiso exesha elizayo e-PVC. Nangona uTrump ebhengeze iingxoxo ne-Iran, la macala mabini ahlala ehlukene kakhulu kwimibandela. Urhwebo lweoyile ekrwada lunamandla ekushukumeni, kwaye iikhemikhali zamandla ziphinda zibuye kakhulu ukusuka kwixabiso eliphantsi. Nangona kunjalo, i-PVC ayisebenzi kakuhle kwezinye iikhemikhali ngenxa yemfuno ebuthathaka yasekhaya kunye nokunyuka kwamazinga okusebenza kwezityalo ze-PVC ezisekelwe kwi-calcium carbide.
Oko kuthethiweyo, amaxabiso aphezulu e-PVC kumazwe ngamazwe kunye nemfuno ethembisayo yokuthumela kwamanye amazwe zibonelela ngenkxaso eqinileyo kumaxabiso e-PVC asekhaya. Lilonke, amaxabiso e-PVC kulindeleke ukuba atshintshe kwinqanaba eliphezulu kwixesha elifutshane; nangona kunjalo, ukuhla kwamaxabiso eoli ekrwada kunokubangela ukuba amaxabiso e-PVC anciphe kwaye kugcine imakethi ikwimeko yokungakhathali.
I-Chemdo: OthembekileyoIqabanekwiMarike yePVC yokuguquguquka
Phakathi kwemarike yangoku enciphayo ngokunikezelwa kwePVC kwihlabathi liphela kunye namathuba amahle okuthumela ngaphandle, iChemdo isebenzisa ngokupheleleyo iingenelo zayo zecandelo lemizi-mveliso kunye nezixhobo zokubonelela ngeenkonzo zasekhaya ukunceda amaqabane ehlabathi ukuba afikelele kumaxabiso azinzileyo okuthenga, aqinisekise ukuqhubeka kokunikezelwa kweenkonzo kwaye afikelele kwimarike yokuthumela ngaphandle ekhulayo. Izinikele kwintsebenziswano yexesha elide, iChemdo ime njengebhulorho ethembekileyo edibanisa imboni yePVC yaseTshayina kunye nemarike yehlabathi, inika amandla abathengi behlabathi ukuba bakwazi ukuhamba ngokuguquguquka kwemarike ngeenkonzo ezisebenzayo nezinobuchule.
Ixesha leposi: Matshi 31-2026