ʻO ka hoʻonui nui ʻana i ka hana uila kiʻekiʻe kūloko a me ka hoʻohaiki ʻana o ka ʻokoʻa kumukūʻai linear

Mai ka makahiki 2020, ua komo nā hale hana polyethylene kūloko i kahi pōʻaiapuni hoʻonui kikowaena, a ua piʻi koke ka hiki ke hana makahiki o ka PE kūloko, me ka awelika o ka ulu makahiki ma mua o 10%. Ua piʻi koke ka hana ʻana o ka polyethylene i hana ʻia ma ka kūloko, me ka homogenization huahana koʻikoʻi a me ka hoʻokūkū ikaika ma ka mākeke polyethylene. ʻOiai ua hōʻike pū ke koi no ka polyethylene i kahi ʻano ulu i nā makahiki i hala iho nei, ʻaʻole i wikiwiki ka ulu ʻana o ke koi e like me ka wikiwiki o ka ulu ʻana o ka lako. Mai ka makahiki 2017 a i ka makahiki 2020, ua kālele nui ʻia ka hiki ke hana hou o ka polyethylene kūloko i nā ʻano haʻahaʻa-voltage a me nā linear, a ʻaʻohe mea hana kiʻekiʻe-voltage i hoʻokomo ʻia ma Kina, e hopena ana i ka hana ikaika ma ka mākeke kiʻekiʻe-voltage. I ka makahiki 2020, i ka hoʻonui mālie ʻana o ka ʻokoʻa kumukūʻai ma waena o LDPE a me LLDPE, ua piʻi ka manaʻo o nā huahana LDPE. Ua hoʻokomo ʻia ka ʻāpana hana EVA co a me ka ʻāpana Zhejiang Petrochemical LDPE i ka makahiki 2022, me ka hiki ke hana kiʻekiʻe-kaomi kūloko o 3.335 miliona tons e like me ka lā ma mua.

I ka makahiki 2023, ua hōʻike ka mākeke kaomi kiʻekiʻe i kahi ʻano loli a emi iho. Ma ka lawe ʻana i ka mākeke ʻĀkau Kina ma ke ʻano he laʻana, ʻo ke kumukūʻai kaomi kiʻekiʻe awelika mai Ianuali a Mei he 8853 yuan/ton, he emi nui ia makahiki ma ka makahiki he 24.24%. I ke kau kiʻekiʻe o ke koi no ka ʻili plastik i ka hapaha mua, ua ikaika loa nā kumukūʻai linear. ʻO ke kumukūʻai awelika linear mai Ianuali a ʻApelila he 8273, he emi ia makahiki ma ka makahiki he 7.42%. Ua emi nui ka ʻokoʻa o ke kumukūʻai ma waena o ke ana wela kiʻekiʻe a me ka laina. Ma ka lā 23 o Mei, ʻo ka laina nui kūloko ma ka mākeke ʻĀkau Kina he 7700-7950 yuan/ton, ʻoiai ʻo ka laina nui kūloko ma ke ana wela kiʻekiʻe maʻamau i hōʻike ʻia ma 8000-8200 yuan/ton. ʻO ka ʻokoʻa o ke kumukūʻai ma waena o ke ana wela kiʻekiʻe a me ka laina he 250-300 yuan/ton.

Ma keʻano holoʻokoʻa, me ka hoʻonui mau ʻana o ka hiki ke hana polyethylene kūloko a me ka hoʻonui mālie ʻana o ka lako kūloko, ua hoʻonui ʻia ka pilikia o ka lako nui ma ka ʻoihana polyethylene. ʻOiai ʻoi aku ka kiʻekiʻe o ke kumukūʻai hana no ka voltage kiʻekiʻe ma mua o ka linear, ma muli o ka hiki ke hoʻololi ʻia o ka linear a me ka metallocene ma kekahi mau wahi hana, he paʻakikī ke kākoʻo i nā kumukūʻai kiʻekiʻe a me nā loaʻa kālā kiʻekiʻe ma ka mākeke polyethylene nāwaliwali o kēia manawa, a ua emi nui ka ʻokoʻa kumukūʻai ma waena o ka voltage kiʻekiʻe a me ka linear.