I-Polyethylene (PE) i-resin ye-thermoplastic eyenziwe nge-polymerization ye-ethylene.Ngokwezimboni, kuhlanganisa ne-ethylene kanye nenani elincane lama-α- Copolymers we-olefins.I-polyethylene ayinaphunga, ayinabuthi, futhi izwakala njengengcina.Inokumelana okuhle kakhulu nezinga lokushisa eliphansi (izinga lokushisa elincane lesevisi lingafinyelela - 100 ~ - 70 ° C), ukusimama okuhle kwamakhemikhali, futhi lingamelana nokuhlaselwa okuningi kwe-asidi ne-alkali (okungamelani nama-asidi anezakhiwo ze-oxidizing).Ayincibiliki kuma-solvents ajwayelekile ekushiseni okuvamile, nokumunca amanzi amancane kanye nokufakwa kukagesi okuhle kakhulu.
Izinga lokusebenzisa umthamo wokukhiqiza i-polyethylene e-China liphezulu, futhi ligcinwa cishe ku-90% unyaka wonke.Ngokuthuthuka komnotho waseChina, isidingo semakethe ye-polyethylene sikhula ngokushesha, futhi umphumela uyanda.Eminyakeni yamuva nje, amandla okukhiqizwa kwe-polyethylene yaseChina kanye nokuphumayo kuye kwagcina umkhuba owandayo.Ukukhiqizwa kwe-polyethylene yaseShayina kungamathani ayizigidi ezingu-22.72, nokunyuka konyaka ngo-11.8%, futhi okuphumayo kuzodlula amathani ayizigidi ezingu-30.
Ukusetshenziswa okusobala kwe-polyethylene kwanda kancane kancane.Ngo-2021, ukusetshenziswa okusobala kwe-polyethylene e-China kwehle kwafinyelela kumathani ayizigidi ezingama-37.365, ukwehla konyaka nonyaka ngo-3.2%.Ikakhulukazi kungenxa yomthelela wesimo esiwubhubhane kanye nokulawulwa kokusetshenziswa kwamandla, futhi ezinye izimboni ezisezansi nomfula zimisa okwesikhashana noma zehlise umthwalo wokukhiqiza.Ngokuthuthukiswa kokuzanelisa, ukuncika kokungeniswa kwe-PE kuzokwehla kancane kancane.Ngokuzayo, ngokuthuthuka kwesimo sobhubhane kanye nokukhula okuqhubekayo komnotho wasekhaya, isidingo se-PE sizoqhubeka sikhula.Kulindeleke ukuthi ilulame kancane kancane ngo-2022, ikhuphuke ibe ngamathani ayizigidi ezingama-39.
Izici: ezinganambitheki, ezingenaphunga, ezingenabo ubuthi, izinhlayiya ze-waxy ezinokuminyana okungaba ngu-0.920 g/cm3 kanye nephoyinti elincibilikayo elingu-130 ℃~145 ℃.Ayincibiliki emanzini, incibilika kancane kuma-hydrocarbon, njll. Ingakwazi ukumelana nokugqwala kwama-asidi amaningi nama-alkali, imunca amanzi aphansi, isengagcina ukuguquguquka emazingeni okushisa aphansi, futhi inokufakwa kukagesi okuphezulu.
Isikhathi sokuthumela: Sep-06-2022