Polyethylene (PE) is thermoplastic resin yakagadzirwa ne polymerization ye ethylene.Indasitiri, inosanganisirawo ethylene uye shoma α- Copolymers yeolefins.Polyethylene haina hwema, haina chepfu, uye inonzwa kunge wakisi.Iyo ine yakanakisa kudzika-tembiricha kuramba (iyo shoma sevhisi tembiricha inogona kusvika - 100 ~ - 70 ° C), yakanaka kugadzikana kwemakemikari, uye inogona kuramba yakawanda acid uye alkali kurwiswa (isingamiri kune acid ane oxidizing zvimiro).Haina kunyungudika mune zvakajairwa zvinonyungudutsa pane yakajairika tembiricha, ine diki yekunyudza mvura uye yakanakisa magetsi ekudzivirira.
Kushandiswa kwehuwandu hwekugadzira polyethylene kuChina kwakakwira, uye inochengetwa ingangoita 90% gore rose.Nekuvandudzwa kwehupfumi hweChina, kudiwa kwemusika wepolyethylene kunowedzera nekukurumidza, uye zvinobuda zvinowedzera.Mumakore achangopfuura, China yekugadzira polyethylene kugona uye kubuda zvakaramba zvichiwedzera maitiro.Kugadzirwa kwe polyethylene yeChina kunosvika matani emamiriyoni makumi maviri nemaviri, nekuwedzera kwegore negore kwe11.8%, uye zvinobuda zvichapfuura matani emamiriyoni makumi matatu.
Iko kuoneka kushandiswa kwe polyethylene kwakawedzera zvishoma nezvishoma.Muna 2021, kushandiswa kuri pachena kwepolyethylene muChina kwakadzikira kusvika 37.365 miriyoni matani, gore-pa-gore kuderera kwe3.Izvo zvinonyanya kukonzerwa nekukanganisa kwemamiriro edenda uye simba rekushandisa simba, uye mamwe mafekitori ari pasi pemvura anomisa kana kuderedza mutoro wekugadzira.Nekuvandudzwa kwekugona kuzviriritira, kutsamira kwePE kunze kunoderera zvishoma nezvishoma.Mune ramangwana, nekuvandudzwa kwemamiriro edenda uye kukura kwakasimba kwehupfumi hwepamba, kudiwa kwePE kucharamba kuchiwedzera.Inotarisirwa kupora zvishoma nezvishoma muna 2022, ichiwedzera kusvika 39 miriyoni matani.
Zvivakwa: zvisingaravike, zvisinganhuhwi, zvisina muchetura, opalescent, waxy zvimedu zvine density inosvika 0.920 g/cm3 uye nzvimbo yekunyungudika inosvika 130 ℃~145 ℃.Isinganyunguriki mumvura, inonyungudika zvishoma mumahydrocarboni, nezvimwewo. Inogona kuramba nekuora kweasidhi zhinji uye alkali, ine kunyura kwemvura yakaderera, inogona kuramba ichichinjika pakudziya kwakadzika, uye ine yakakwirira yemagetsi ekudzivirira.
Nguva yekutumira: Sep-06-2022