He pai nga ahuatanga o te HDPE mo te kaha pai, te pakari pai, te pakari pai, me te aukati i te waikura, te parewai me te makuku-tohu, te wera me te makariri, na reira he tono nui ki te pupuhi pupuhi, te werohanga me te paipa.Na te hanganga o nga ahuatanga o te ahumahi penei i te kirihou hei utu mo te rino, te kirihou hei utu mo te rakau, ko te HDPE hei taonga polyethylene mahi nui ka whakatere i te whakakapi i nga taonga tuku iho a muri ake nei.Ko te mea matua o te kiriata ahuwhenua me te takai, he iti ake te LDPE ki te LLDPE i roto i te kaha miihini, te whakamaarama wera me te mahi makuku makuku, me te aukati i te waikura.Na reira, ko te hiahia o te maakete o LLDPE kua tere te tipu haere i roto i nga tau tata nei, kua horomia etahi wahanga maakete o LDPE.
1. Polyethylene (PE) mekameka ahumahi
Ko te Polyethylene tetahi o nga kapia waihanga nui e rima, engari ko te kaha nui rawa atu o nga kapia waihanga whare, ka kawemai i te nuinga o nga momo.Na te mea ko te polyethylene kei te taha whakarunga o te ethylene, ko te nuinga o te hanga i runga i te huarahi naphtha, a he rite te hua.
Ko te tono nui rawa atu o raro o te polyethylene he kiriata, e 54% o te katoa o te tono mo te polyethylene i te tau 2020. I tua atu, ko nga taputapu tubular he 12%, ko nga ipu tuwhera mo te 12%, ko te werohanga mo te 11%, me te waea. tuhi mo te 4%.
2. Te ahuatanga o naianei o te ahumahi polyethylene (PE).
I nga tau tata nei, kua piki ake te kaha whakaputa polyethylene o te whenua ia tau.Hei te 2021, ko te kaha o te hanga polyethylene o te whenua kei te 25,746,300 tone, ka piki 11.8% i ia tau.
Mo nga mahi whakaputa, mai i te tau 2018, kua piki haere te hanga polyethylene a Haina.I te tau 2018, ko te hanga polyethylene a Haina e tata ana ki te 16.26 miriona taranata, a ka eke ki te 22.72 miriona taranata i te 2021, me te tau toharite o te tipu o te tipu o te 11.8% i roto i te waa.
Mai i te tau 2015 ki te 2020, ka piki haere te kohi polyethylene i Haina, a, i te tau 2021, ka heke te kai o te polyethylene i Haina ki te 37.365,000 tone, he hekenga o te 3.2% i ia tau.Ko te nuinga na te paanga o te mate uruta me te mana rua o te kohi hiko, kua whakatarewa etahi wheketere o raro, kua whakahekehia ranei nga mahi.Na te whakapai ake i te oranga whaiaro, ka heke haere te whakawhirinaki ki te kawe mai i te PE.I te wa kei te heke mai, me te pai ake o te mate uruta me te tipu haere tonu o te ohanga o te kaainga, ka piki tonu te hiahia mo te PE.
E ai ki nga tatauranga tikanga, mai i te Hanuere tae atu ki te Hui-tanguru 2022, ko te tapeke o te kawemai o te polyethylene tata ki te 2,217,900 tone, 13.46% iti iho i te waa ano i tera tau.To tatou whenua polyethylene kawemai te rahinga nui i Saudi Arabia, te tapeke kawemai ko 475,900 tons, kaute mo te 21.46%;Ko te tuarua ko Iran, me te katoa o te kawemai o te 328,300 tons, e 14.80%;Ko te tuatoru ko te United Arab Emirates, me te katoa o te kawemai o te 299,600 tons, e 13.51%.
Mo te taha ki tawahi, mai i Hanuere ki Hui-tanguru 2022, kua heke te rahinga kawemai o te polyethylene ki Haina, engari he rerekee, ka piki nui te kaweake.Tata ki te 53,100 tone polyethylene i tukuna ki waho i te marama o Hanuere-Pepuere 2022, kua piki ake te 29.76% mai i te waa ano i tera tau.Ko te mea nui, ko te LDPE te kaweake mo te 22,100 tons, ko te HDPE te kaweake mo te 25,400 tons, ko te LLDPE te kaweake mo te 50,600 tons.
3. Nga raruraru hangarau o te ahumahi polyethylene (PE).
I tenei wa, ko te whakawhanaketanga o te hangarau polyethylene i Haina he raru e whai ake nei:
(1) Te kore o te hangarau hanga polyethylene matatau.I Haina, ko te tipu Fushun Ethylene Chemical anake e whakamahi ana i te hangarau tukanga Sclairtech ki te whakaputa i nga hua octene 1 copolymerization, a ko Shanghai Jinshan Petrochemical Company anake kei a Borealis Bostar North Star te hangarau tukanga polymerization supercritical.Ko te hangarau tukanga whakarewa o roto o Dow Chemical Co., LTD kaore ano kia whakauruhia ki Haina.
(2) Ko te kore o te α-olefin copolymerization matatau o te polyethylene raw rauemi me te hangarau, kua mohio a Haina te copolymerization o 1-butene me te 1-hexene ki te whakarite i te polyethylene, i roto i te 1-octene, decene, 4-methyl-1-pentene me he watea tonu etahi atu mahi ahumahi α-olefin matatau.
(3) He utu nui te utu o nga rauemi mata EVA, he iti nga hua me te ihirangi VA teitei, me te iti o te kaha ki te whakawhanake i te kiriata mahi me te whakapiri wera wera.
Wā tuku: Akuhata-17-2022