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Kwiminyaka yakutshanje, ishishini le-polyethylene laseTshayina ligcine isantya esinamandla sophuhliso, kunye nesantya sokukhula kwemveliso kunye nokusetyenziswa okukhokelela kwihlabathi.Kwangaxeshanye, iChina isengoyena mntu ungenisa ipolyethylene kumazwe angaphandle.Nangona kunjalo, kunye nophuhliso olukhawulezayo lweshishini, ukuchasana kwesakhiwo kuye kwavela ngokuthe ngcembe, njengokugqithiswa kwemveliso ephakathi kunye nesezantsi, ukhuphiswano olunzima lwe-homogeneous, kunye nengxaki yokulahleka kweyunithi.Ke ngoko, lolona khokelo luphambili kwishishini ukukhuthaza ukuphuculwa kobume bemveliso yeemveliso zepolyethylene kunye nokuqonda imveliso ekhethekileyo, ukwahlula, ukuphela okuphezulu, okuluhlaza kunye nokwenza ngokwezifiso.Kukwayinto ebalulekileyo kumashishini ukuba athabathe ithuba phantsi kokhuphiswano oluqatha kwishishini elizayo.

Okwangoku, i-polyethylene isetyenziswa kakhulu kwiinkalo ezi-5 ezilandelayo, ifilimu, i-injection yokubumba, i-hollow kunye nomzobo, umbhobho.Ngokuphuhliswa kwentsimi echithwayo, i-polyethylene ibophekile ukuba ibambe isabelo esithile semarike, ngelixa ezinye i-UHMWPE, i-MLLDPE, i-EVA kunye ne-POE elastomers ziya kunika inzuzo yeemveliso kwiinkalo ezintlanu, ezifana ne-high-end lithium battery diaphragm, ifilimu yokupakisha photovoltaic. , i-agent ye-photovoltaic yokupakisha kunye nefilimu ephezulu yokupakisha ifilimu kunye nomkhosi we-Marine field field.

Ngo-2022, umthamo wemveliso ye-polyethylene yaseTshayina iya kunyuka ukuya kwi-29.81 yezigidi zeetoni / ngonyaka, kunye nomyinge wokukhula wonyaka we-12.32%, kwaye iya kugcina isantya esiphezulu sokwandiswa kwe-12% kwiminyaka emihlanu ezayo.Ke ngoko, ukuphuculwa kobume bemveliso yindlela yeThe Times.Amashishini okuvelisa i-polyethylene yasekhaya ahlulwe abeHDPE, I-LDPEkunye ne-DFPE iintlobo ezintathu zezixhobo, ezi zixhobo zithathu zingentla zithatha i-44%, i-16% kunye ne-40% yomthamo opheleleyo ngokulandelelanayo.Okwangoku, kunye nophuhliso olukhawulezayo lweshishini le-polyethylene yaseTshayina, ukwenzela ukuxazulula ukuchasana kwesakhiwo "semveliso ephantsi kakhulu kunye nokunqongophala kweemveliso eziphezulu", iphethini yoshishino iya kutshintshela ukuhlukana kunye nomgangatho ophezulu.Ukuze ubambe imarike yabathengi bexesha elizayo, imveliso ekhethekileyo, ukuhlukana kunye nokuphela okuphezulu kusondele.

Okwangoku, kukho iintlobo ezintathu zeemveliso zeplastiki eziphezulu ezinokuthi ziveliswe kwiindawo zokuqala zokuvelisa zeshishini, ezizezi MLLDPE (metallocene polyethylene), UHMWPE (i-ultra-high molecular weight polyethylene) kunye ne-EVA;I-POE elastomer kunye neemveliso zeplastiki ezonakeleyo kufuneka ziveliswe sisixhobo esitsha.Ezi ntlobo zintlanu zeemveliso zezodidi oluphezulu lweplastiki ezinamaxabiso aphezulu, iingeniso ezityebileyo kunye namathemba abanzi.Ukuqhutyelwa yinjongo yeqhinga "yekhabhoni ephindwe kabini" kunye nemigaqo-nkqubo yokukhusela indalo, i-China, njengomthengi omkhulu, iya kuthatha ithuba lomoya wempuma womgaqo-nkqubo, kunye nekamva elingenamkhawulo kunye nekamva elithembisayo.