I-Polyethylene (PE) yi-resin ye-thermoplastic eyenziwe nge-polymerization ye-ethylene.Kwimizi-mveliso, ikwabandakanya i-ethylene kunye nenani elincinci le-α- Copolymers of olefins.I-polyethylene ayinavumba, ayinayo ityhefu, kwaye ivakala ngathi yi-wax.Inokumelana nobushushu obuphantsi kakhulu (ubushushu benkonzo encinci bunokufikelela - 100 ~ - 70 ° C), uzinzo oluhle lweekhemikhali, kwaye inokumelana nohlaselo oluninzi lwe-asidi kunye nealkali (engaxhathisi kwiiasidi ezineempawu ze-oxidizing).Ayinyibiliki kwi-solvents ngokubanzi kubushushu obuqhelekileyo, kunye nokufunxa okuncinci kwamanzi kunye nokufakelwa kombane okugqwesileyo.
Izinga lokusetyenziswa komthamo wokuvelisa i-polyethylene e-China liphezulu, kwaye ligcinwe malunga ne-90% unyaka wonke.Ngophuhliso loqoqosho lwaseTshayina, imfuno yentengiso ye-polyethylene ikhula ngokukhawuleza, kwaye imveliso iyanda.Kwiminyaka yakutshanje, amandla emveliso ye-polyethylene kunye nemveliso yaseTshayina igcine umkhuba okhulayo.Imveliso ye-polyethylene yaseChina imalunga ne-22.72 yezigidi zeetoni, kunye nokunyuka konyaka-ngonyaka we-11.8%, kwaye imveliso iya kudlula iitoni ze-30 yezigidi.
Ukusetyenziswa okubonakalayo kwe-polyethylene kwanda kancinci.Ngo-2021, ukusetyenziswa okubonakalayo kwe-polyethylene e-China kwehle ukuya kwi-37.365 yezigidi zeetoni, ukwehla konyaka-ngonyaka we-3.2%.Ikakhulu ngenxa yempembelelo yemeko yobhubhane kunye nolawulo lokusetyenziswa kwamandla, kwaye ezinye iifektri ezisezantsi zinqumamisa okanye zinciphise umthwalo wemveliso.Ngokuphuculwa kokuzimela, ukuxhomekeka kwe-PE kumazwe angaphandle kuya kuncipha ngokuthe ngcembe.Kwixesha elizayo, ngokuphuculwa kwemeko yobhubhane kunye nokukhula okuzinzileyo koqoqosho lwangaphakathi, imfuno ye-PE iya kuqhubeka nokunyuka.Kulindeleke ukuba ichache kancinci ngo-2022, inyuke iye kuthi ga kwi-39 yezigidi zeetoni.
Iipropati: ayinancasa, ayinavumba, ayinatyhefu, i-opalescent, amasuntswana ane-waxy anoxinano olumalunga ne-0.920 g/cm3 kunye nendawo yokunyibilika eyi-130 ℃~145 ℃.Ayinyibiliki emanzini, inyibilika kancinane kwi-hydrocarbons, njl.
Ixesha lokuposa: Sep-06-2022