Kuwonjezeka kwakukulu kwa kupanga magetsi amphamvu m'dziko muno komanso kuchepa kwa kusiyana kwa mitengo yolunjika

Kuyambira mu 2020, mafakitale a polyethylene apakhomo alowa munthawi yokulirakulira, ndipo mphamvu yopangira ya pachaka ya PE yakunyumba yawonjezeka mofulumira, ndi kuchuluka kwapakati pa kukula kwa pachaka kwa oposa 10%. Kupanga polyethylene yopangidwa kunyumba kwawonjezeka mofulumira, ndi kuphatikizika kwakukulu kwa zinthu komanso mpikisano waukulu pamsika wa polyethylene. Ngakhale kufunikira kwa polyethylene kwawonetsanso kukula m'zaka zaposachedwa, kukula kwa kufunikira sikunakhale kwachangu monga kukula kwa zinthu. Kuyambira mu 2017 mpaka 2020, mphamvu yatsopano yopangira polyethylene yakunyumba imayang'ana kwambiri mitundu yamagetsi otsika komanso yolunjika, ndipo panalibe zida zamagetsi apamwamba zomwe zidayikidwa ku China, zomwe zidapangitsa kuti msika wamagetsi apamwamba ugwire ntchito bwino. Mu 2020, pamene kusiyana kwamitengo pakati pa LDPE ndi LLDPE kudakulirakulira pang'onopang'ono, chidwi cha zinthu za LDPE chidakwera. Chipinda chopangira cha EVA ndi Zhejiang Petrochemical LDPE chidayamba kugwira ntchito mu 2022, ndi mphamvu yopangira mphamvu yamagetsi yapakhomo ya matani 3.335 miliyoni kuyambira tsiku lapitalo.

Mu 2023, msika wamagetsi amphamvu unawonetsa kusintha ndi kuchepa. Mwachitsanzo, potengera msika wa North China, mtengo wamagetsi amphamvu kuyambira Januwale mpaka Meyi unali 8853 yuan/tani, kutsika kwakukulu kwa 24.24% pachaka. Mu nyengo yayikulu yofunikira kwa filimu yapulasitiki mu kotala yoyamba, mitengo yolunjika inali yolimba. Mtengo wamagetsi amphamvu kuyambira Januwale mpaka Epulo unali 8273, kutsika kwa 7.42% pachaka. Kusiyana kwa mitengo pakati pa magetsi amphamvu ndi amphamvu kunachepa kwambiri. Pofika pa Meyi 23, magetsi amphamvu am'nyumba pamsika wa North China anali 7700-7950 yuan/tani, pomwe magetsi amphamvu am'nyumba anali 8000-8200 yuan/tani. Kusiyana kwa mitengo pakati pa magetsi amphamvu ndi amphamvu kunali 250-300 yuan/tani.

Ponseponse, chifukwa cha kukula kosalekeza kwa mphamvu zopangira polyethylene m'nyumba komanso kuwonjezeka pang'onopang'ono kwa mphamvu zopangira polyethylene m'nyumba, vuto la kuchuluka kwa zinthu zomwe zimagwiritsidwa ntchito m'makampani opanga polyethylene lakula kwambiri. Ngakhale kuti mtengo wopangira magetsi amphamvu ndi wokwera pang'ono kuposa wa linear, chifukwa cha kusintha kwa linear ndi metallocene m'malo ena opangira, n'kovuta kuthandizira mitengo yokwera komanso phindu lalikulu pamsika wofooka wa polyethylene, ndipo kusiyana kwa mitengo pakati pa magetsi amphamvu ndi linear kwachepa kwambiri.