Iyini impahla ye-HDPE? Ukuhlaziywa okuphelele kwezici kanye nokusetshenziswa kwe-polyethylene ephezulu kakhulu
Embonini yamakhemikhali, i-HDPE iyinto ebaluleke kakhulu, igama layo eliphelele i-High-Density Polyethylene (High-Density Polyethylene).Iyini ngempela i-HDPE? Lesi sihloko sizokunikeza impendulo enemininingwane kanye nokuhlaziywa okujulile kwezici ze-HDPE, inqubo yayo yokukhiqiza kanye nobubanzi bayo bezinhlelo zokusebenza.
Imiqondo Eyisisekelo kanye Nesakhiwo Sekhemikhali se-HDPE
Iyini i-HDPE? Ngokombono wamakhemikhali, i-HDPE i-polymer ye-thermoplastic eyakhiwe ngokuhlanganisa i-polymerisation ye-ethylene monomers. Isakhiwo sayo samangqamuzana sibonakala ngamaketanga amade e-polyethylene anesisindo esikhulu samangqamuzana esihlobene namaketanga ambalwa anamagatsha phakathi kwawo, okuholela ekuhlelweni kwamangqamuzana okuqina. Lolu hlelo oluqinile lwamamolekyuli lunikeza i-HDPE ukuminyana okuphezulu emndenini we-polyethylene, ngokuvamile phakathi kuka-0.940 g/cm³ no-0.970 g/cm³.
I-Superior Physical Properties ye-HDPE
Impahla ye-HDPE ibonisa izinto eziningi ezinhle kakhulu zomzimba ngenxa yesakhiwo sayo esiyingqayizivele samangqamuzana. Inamandla aphezulu kanye nokuqina futhi ingakwazi ukumelana nokucindezeleka okuphezulu kwemishini, okwenza kube kuhle kakhulu ekusebenzeni okuthwala umthwalo.I-HDPE inokumelana okuhle kakhulu kwamakhemikhali, okwenza kube usizo ekugcineni amakhemikhali.
I-HDPE futhi inokumelana okuhle kakhulu nezinga lokushisa eliphansi, ekwazi ukugcina ukuqina kwayo endaweni ephansi njengo -40°C ngaphandle kokuba brittle. Iphinde ibe nezindawo ezinhle zokuvikela ugesi, okuholele ekusetshenzisweni kwayo ekusheheni izintambo nezintambo.
Inqubo yokukhiqiza ye-HDPE nezindlela zokucubungula
Ngemva kokuqonda ukuthi hlobo luni lwe-HDPE yezinto ezibonakalayo, ake sibheke inqubo yayo yokukhiqiza.I-HDPE ivame ukukhiqizwa inqubo ye-polymerisation yokucindezela okuphansi, okungukuthi ngaphansi kwezimo eziphansi zengcindezi, ne-Ziegler-Natta catalyst noma i-Phillips catalyst njenge-catalyst eyinhloko, ngesigaba segesi, isisombululo. noma izindlela ze-slurry polymerization. Lezi zinqubo ziholela ku-HDPE ene-crystallinity ephansi kanye namazinga aphezulu e-crystallization, okuholela ekuxhumekeni okuphezulu kwe-polyethylene impahla.
Izinto ze-HDPE zinokucutshungulwa okuhle futhi zingabunjwa ngezindlela ezihlukahlukene zokucubungula, njengokubunjwa komjovo, ukubunjwa kokushaywa nokubunjwa kwe-extrusion. Ngenxa yalokho, i-HDPE ingenziwa ibe yizinhlobo eziningi zemikhiqizo enjengamapayipi, amafilimu, amabhodlela neziqukathi zepulasitiki.
Ububanzi bezindawo zokufaka izicelo ze-HDPE
Ngenxa yezakhiwo eziningi ezinhle kakhulu zezinto ze-HDPE, isetshenziswa kabanzi ezimbonini ezahlukahlukene. Embonini yokupakisha, i-HDPE ivame ukusetshenziswa ekwenzeni izinhlobo ezahlukene zamabhodlela epulasitiki, izigqoko zamabhodlela, amafilimu okufaka ukudla, njll. Ubuningi bayo obuphezulu kanye nokunciphisa okuphansi kuqinisekisa ukulondolozwa kwesikhathi eside kokupakisha. Embonini yezokwakha, i-HDPE isetshenziselwa ukukhiqiza amapayipi okuhambisa amanzi kanye nokukhipha amanzi kanye namapayipi egesi, futhi ukugqwala kwawo kanye nokumelana nomthelela kwenza kuthembeke ezindaweni ezinokhahlo.
Emkhakheni wezolimo, i-HDPE isetshenziselwa ukwenza amafilimu ezolimo, amanetha omthunzi neminye imikhiqizo, lapho ukumelana nokuqina kwayo kwe-UV kuqinisekisa ukuvikeleka kwezitshalo kanye nesivuno.I-HDPE isetshenziswa kabanzi ekwenziweni kokugqunywa kwezintambo nezintambo, kanye nase- izinhlobonhlobo zamathangi neziqukathi ezingazweli ngamakhemikhali.
Isiphetho
I-HDPE i-thermoplastic polymer material enezici ezinhle kakhulu ezifana namandla aphezulu, ukumelana namakhemikhali, ukumelana nezinga lokushisa eliphansi nokucubungula kalula. Inezinhlobonhlobo zezicelo kumakhemikhali, ukwakhiwa, ezolimo neminye imikhakha. Uma usacabanga ukuthi "iyini impahla ye-HDPE", ngethemba ukuthi ngalesi sihloko, unokuqonda okuphelele kwezici nokwenziwa kwe-HDPE, i-HDPE ngokungangabazeki ingenye yezinto eziyisisekelo ezibalulekile embonini yesimanje.