ozi

HDPE nwere njirimara arụmọrụ magburu onwe ya nke ike dị mma, ịdị mma siri ike, ezigbo nkwụsi ike, na nkwụsị nke corrosion, mgbochi mmiri na mmiri, okpomọkụ na oyi na-eguzogide, n'ihi ya, ọ nwere ngwa dị mkpa na ịkpụzi ịkpụzi, injection ịkpụzi na ọkpọkọ.Site na nguzobe nke usoro ụlọ ọrụ dị ka plastik kama ígwè, plastik kama osisi, HDPE dị ka ihe na-arụ ọrụ polyethylene dị elu ga-eme ka ngbanwe nke ihe ọdịnala dị n'ọdịnihu.Dị ka isi ihe nke ihe nkiri ugbo na nkwakọ ngwaahịa, LDPE dị ala karịa LLDPE n'ike igwe, mkpuchi okpomọkụ na arụmọrụ mkpuchi mmiri, yana nguzogide corrosion.Ya mere, ọchịchọ ahịa nke LLDPE na-eto ngwa ngwa n'afọ ndị na-adịbeghị anya, na-eji nwayọọ nwayọọ na-eloda ụfọdụ òkè ahịa nke LDPE.

1. Polyethylene (PE) ụlọ ọrụ yinye

Polyethylene bụ otu n'ime nnukwu resin sịntetik ise, mana ọ bụkwa ikike mmepụta nke resins sịntetik nke ụlọ, na-ebubata ụdị dị iche iche.N'ihi na polyethylene dị n'elu nke ethylene, mmepụta na-adabere na ụzọ naphtha, na uru ya yiri ya.

Ngwa kachasị ukwuu nke polyethylene bụ ihe nkiri, nke ruru ihe dị ka 54% nke mkpokọta ihe achọrọ maka polyethylene na 2020. Tụkwasị na nke ahụ, akụrụngwa tubular ruru 12%, oghere oghere ruru 12%, ịkpụzi injection bụ 11%, na waya. eserese ruru 4%.

2. Ọnọdụ ugbu a nke ụlọ ọrụ polyethylene (PE).

N'afọ ndị na-adịbeghị anya, ikike mmepụta polyethylene nke mba ahụ abawanyela kwa afọ.Site na 2021, ikike imepụta polyethylene nke mba ahụ dị ihe dị ka tọn 25,746,300, gbagoro 11.8% kwa afọ.

N'ihe gbasara mmepụta, ebe ọ bụ na 2018, mmepụta polyethylene nke China ejiriwo nwayọọ nwayọọ na-abawanye.N'afọ 2018, mmepụta polyethylene nke China dị ihe dị ka nde tọn 16.26, wee rute tọn nde 22.72 na 2021, na-enwe nkezi uto ngwakọta kwa afọ nke 11.8% n'ime oge ahụ.

Site na 2015 ruo 2020, oriri polyethylene pụtara na China ji nwayọọ nwayọọ mụbaa, na 2021, oriri polyethylene pụtara ìhè na China gbadara ruo tọn 37.365,000, mbelata nke 3.2% kwa afọ.tumadi n'ihi mmetụta nke ọrịa na-efe efe na njikwa ugboro abụọ nke oriri ike, ụfọdụ ụlọ ọrụ ndị dị n'okpuru ala akwụsịla ma ọ bụ belata mmepụta.Site na nkwalite nke izu ike nke onwe, mbubata ndabere nke PE ga-eji nwayọọ nwayọọ belata.N'ọdịnihu, na mmụba nke ọrịa na-arịwanye elu na ụba nke akụ na ụba ụlọ, ọchịchọ maka PE ga-anọgide na-abawanye.

Dị ka ọnụ ọgụgụ kọstọm si kwuo, site na Jenụwarị ruo February 2022, ngụkọta mbubata polyethylene dị ihe dị ka tọn 2,217,900, 13.46% erughị otu oge ahụ n'afọ gara aga.Mba anyị polyethylene na-ebubata ọnụ ọgụgụ kasị ukwuu site na Saudi Arabia, ngụkọta mbubata bụ tọn 475,900, na-aza 21.46%;Nke abụọ bụ Iran, nke nwere ngụkọta mbubata nke tọn 328,300, na-aza 14.80%;Nke atọ bụ United Arab Emirates, nwere ngụkọta mbubata nke tọn 299,600, na-aza 13.51%.

N'ihe gbasara mbupụ, site na Jenụwarị ruo February 2022, olu mbubata polyethylene nke China gosipụtara mbelata, ebe n'ụzọ dị oke iche, mbupụ ahụ bilitere nke ọma.Ihe dị ka tọn 53,100 nke polyethylene ebupụrụ na Jenụwarị-February 2022, gbagoro 29.76% site n'otu oge ahụ n'afọ gara aga.Kpọmkwem, LDPE na-ebupụ ihe dị ka tọn 22,100, HDPE na-ebupụ ihe dị ka tọn 25,400, na LLDPE na-ebupụ ihe dị ka tọn 50,600.

3. Nsogbu teknụzụ nke ụlọ ọrụ polyethylene (PE).

Ka ọ dị ugbu a, mmepe nke teknụzụ polyethylene na China nwere nsogbu ndị a:

(1) Enweghị teknụzụ mmepụta polyethylene dị elu.Na China, naanị Fushun Ethylene Chemical osisi na-eji teknụzụ usoro Sclairtech iji mepụta ngwaahịa copolymerization octene 1, naanị ụlọ ọrụ Shanghai Jinshan Petrochemical nwere teknụzụ Borealis Bostar North Star supercritical polymerization.Teknụzụ usoro ihe mgbaze nke Dow Chemical Co., LTD ewepụtabeghị na China.

(2) Enweghị elu α-olefin copolymerization nke polyethylene akụrụngwa na nkà na ụzụ, China maara na copolymerization nke 1-butene na 1-hexene iji kwadebe polyethylene, na 1-octene, decene, 4-methyl-1-pentene na Mmepụta ụlọ ọrụ α-olefin ndị ọzọ dị elu ka dịkwa oghere.

(3) Ọnụ ahịa mmepụta ihe dị elu nke ngwaahịa EVA, ngwaahịa ole na ole nwere ọdịnaya VA dị elu, na obere mgbalị na mmepụta ihe nkiri na-arụ ọrụ na nrapado na-ekpo ọkụ.