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HDPE waxay leedahay sifooyin waxqabad oo heer sare ah oo xoog wanaagsan, qallafsanaan wanaagsan, qallafsanaan wanaagsan, iyo iska caabbinta daxalka, biyuhu iyo qoyaan-ceybka, kulaylka iyo caabbinta qabow, sidaas darteed waxay leedahay codsiyo muhiim ah oo ku saabsan qaabeynta dharbaaxada, qaabeynta duritaanka iyo tuubada.Iyada oo la samaynayo isbeddellada warshadaha sida caag ah halkii birta, caag ah halkii alwaax, HDPE oo ah wax-qabad sare oo polyetylen ah ayaa dardargelin doona beddelka alaabta dhaqameed ee mustaqbalka.Maaddaama maaddada ugu muhiimsan ee filimka beeraha iyo baakadaha, LDPE ay ka hooseyso LLDPE xoogga farsamada, kuleylka kulaylka iyo waxqabadka ilaalinta qoyaanka, iyo iska caabinta daxalka.Sidaa darteed, baahida suuqa ee LLDPE ayaa si xawli ah u koraysay sannadihii la soo dhaafay, iyada oo si tartiib tartiib ah u liqeysa qayb ka mid ah suuqa LDPE.

1. Polyethylene (PE) silsilad warshadaha

Polyethylene waa mid ka mid ah shanta xabagta synthetic ee waaweyn, laakiin sidoo kale awoodda wax-soo-saarka ugu weyn ee xabagta synthetic ee gudaha, waxay soo dejisaa noocyada ugu badan.Sababtoo ah polyetylenku wuxuu ka korayaa ethylene, wax soo saarku wuxuu inta badan ku salaysan yahay dariiqa naphtha, faa'iidada ayaa la mid ah.

Codsiga ugu weyn ee polyetylenka waa filim, kaas oo lagu qiyaasey 54% wadarta baahida polyetylen sanadka 2020. Intaa waxaa dheer, qalabka tuubada ayaa lagu xisaabiyay 12%, weelasha godan ayaa xisaabay 12%, qaabeynta cirbaddu waxay u dhigantaa 11%, iyo silig sawirku wuxuu xisaabay 4%.

2. Xaaladda hadda jirta ee warshadaha polyetylen (PE).

Sannadihii u dambeeyay, awoodda wax-soo-saarka polyetylen-ka ee waddanku waa ay korodhay sannadba sannadka ka dambeeya.Marka la gaaro 2021, awoodda wax-soo-saarka polyetylen-ka ee waddanku waxay ku dhowdahay 25,746,300 tan, taasoo ka dhigan 11.8% sannadkii.

Marka la eego wax soo saarka, tan iyo 2018, wax soo saarka polyetylen ee Shiinaha ayaa si joogto ah u kordhay.2018, wax soo saarka Shiinaha ee polyetylen wuxuu ahaa ilaa 16.26 milyan oo tan, wuxuuna gaadhay 22.72 milyan tan sanadka 2021, iyadoo celcelis ahaan kobaca isku dhafka sanadlaha ah ee 11.8% muddadaas.

Laga soo bilaabo 2015 ilaa 2020, isticmaalka muuqda ee polyetylen ee Shiinaha ayaa si tartiib tartiib ah u kordhay, 2021, isticmaalka muuqda ee polyetylen ee Shiinaha ayaa hoos u dhacay 37.365,000 tan, hoos u dhac 3.2% sanad kasta.Inta badan saameynta cudurka faafa iyo xakameynta tamarta tamarta, qaar ka mid ah warshadaha hoose ayaa hakiyay ama hoos u dhigay wax soo saarka.Horumarinta isku-filnaanshaha, ku-tiirsanaanta soo dejinta ee PE ayaa si tartiib tartiib ah hoos u dhigi doonta.Mustaqbalka, hagaajinta faafitaanka iyo kobaca joogtada ah ee dhaqaalaha gudaha, baahida loo qabo PE ayaa sii wadi doonta inay kordhiso.

Marka loo eego tirakoobka kastamka, laga bilaabo Janaayo ilaa Febraayo 2022, wadarta guud ee polyetylen soo dejinta waxay ahayd ilaa 2,217,900 tan, 13.46% in ka yar isla xilligii sanadkii hore.Dalkeenna polyetylen-ka ayaa tirada ugu badan ka keena Sucuudiga, wadarta guud ee la soo dejiyo waa 475,900 tan, oo u dhiganta 21.46%;Midda labaad waa Iran, iyada oo wadarta guud ee la soo dhoofiyo 328,300 tan, oo u dhiganta 14.80%;Midda saddexaad waa Imaaraatka Carabta, iyada oo wadarta guud ee la soo dejiyo ay tahay 299,600 oo tan, taas oo u dhiganta 13.51%.

Marka la eego dhoofinta, laga bilaabo Jannaayo ilaa Febraayo 2022, mugga soo dejinta polyetylen ee Shiinaha ayaa muujiyay hoos u dhac, halka si aad ah loo barbardhigo, dhoofinta ayaa kor u kacday.Qiyaastii 53,100 tan oo polyetylen ah ayaa la dhoofiyay bilihii Janaayo-Febraayo 2022, taasoo ka dhigan 29.76% isla muddadaas sannadkii hore.Gaar ahaan, LDPE waxay dhoofisaa ilaa 22,100 tan, HDPE waxay dhoofisaa ilaa 25,400 tan, LLDPE waxay dhoofisaa ilaa 50,600 tan.

3. Dhibaatooyinka farsamada ee warshadaha polyetylen (PE).

Waqtigan xaadirka ah, horumarinta tignoolajiyada polyetylen ee Shiinaha waxay leedahay dhibaatooyinka soo socda:

(1) La'aanta tignoolajiyada wax soo saarka ee polyetylen horumarsan.Shiinaha, kaliya warshad Kiimikada Fushun Ethylene waxay isticmaashaa tignoolajiyada habka Sclairtech si ay u soo saarto octene 1 alaabada koobiyeerka, oo kaliya Shanghai Jinshan Petrochemical Company waxay leedahay tignoolajiyada habka polymerization ee Borealis Bostar North Star.Tignoolajiyada habka dareeraha gudaha ee Dow Chemical Co., LTD laguma soo bandhigin Shiinaha.

(2) Maqnaanshaha sare ee α-olefin copolymerization ee alaabta ceeriin ee polyetylen iyo tignoolajiyada, Shiinuhu wuxuu ku guuleystey copolymerization ee 1-butene iyo 1-hexene si loo diyaariyo polyetylen, 1-octene, decene, 4-methyl-1-pentene iyo Wax soo saarka kale ee warshadaha α-olefin ee horumarsan ayaa weli madhan.

(3) Qiimaha wax soo saarka sare ee alaabta ceeriin ee EVA, alaabooyin yar oo leh VA-ga sare, iyo dadaal yar oo loogu talagalay horumarinta filim shaqeynaya iyo dhejis dhalaalaysa kulul.