Ipayipi le-PE (ipayipi le-HDPE) lenziwe nge-polyethylene njengento eluhlaza eyinhloko, enezela ama-antioxidants, i-carbon black kanye nezinto zombala.Ibonakala ngokuminyana okuphansi, amandla athile aphezulu, ukumelana okuhle kwezinga lokushisa eliphansi kanye nokuqina, futhi izinga lokushisa le-embrittlement lingafinyelela -80 °C.
Ipulasitiki yepayipi le-PE ingacutshungulwa futhi yakhiwe ngezindlela ezahlukahlukene zokwenza imikhiqizo ehlukahlukene njengamafilimu, amashidi, amapayipi, amaphrofayili, njll.;futhi ilungele ukusika, ukubopha kanye nokucubungula "i-welding".Ipulasitiki kulula ukuyifaka umbala futhi ingenziwa ibe imibala egqamile;ingaphinda icutshungulwe ngokuphrinta, i-electroplating, ukuphrinta nokufaka i-embossing, okwenza amapulasitiki acebile emiphumeleni yokuhlobisa.
Amapulasitiki amaningi anokumelana nokugqwala okunamandla ku-asidi, i-alkali, usawoti, njll. kunezinto zensimbi nezinye izinto ezingaphili, futhi afaneleka ngokukhethekile iminyango namafasitela, phansi, izindonga, njll. ezitshalweni zamakhemikhali;ama-thermoplastics angancibilika ngamanye ama-organic solvents, kuyilapho amapulasitiki e-thermosetting awakwazi ukuncibilika, ukuvuvukala okuthile kuphela okungenzeka.Amapulastiki nawo anokumelana nokugqwala okuhle emanzini emvelo, ukumuncwa kwamanzi aphansi, futhi angasetshenziswa kabanzi kumaphrojekthi angangeni manzi kanye nawokuvikela umswakama.
Ukumelana nokushisa kwamapulasitiki epayipi le-PE ngokuvamile akuphakeme.Uma ithwalwa emithwalweni emazingeni okushisa aphezulu, ivamise ukuthamba futhi ukonakala, noma ukubola nokuwohloka.Izinga lokushisa lokushintsha ukushisa kwe-thermoplastics evamile lingu-60-120 ° C, futhi izinhlobo ezimbalwa kuphela ezingasetshenziswa isikhathi eside cishe ku-200 ° C..Amanye amapulasitiki kulula ukubamba umlilo noma ashise kancane, futhi inani elikhulu lentuthu enobuthi lizokhiqizwa lapho livutha, libangele ukulimala lapho izakhiwo zivutha.I-coefficient of linear expansion of plastic inkulu, ephindwe izikhathi ezingu-3-10 kuneyensimbi.Ngakho-ke, ukuguqulwa kwezinga lokushisa kukhulu, futhi impahla yonakaliswa kalula ngenxa yokuqoqwa kokucindezeleka okushisayo.
Ngenxa yokusebenza kwayo okuhle kakhulu kwezinga lokushisa eliphansi kanye nokuqina kwayo, ingakwazi ukumelana nokulimala kwemoto nokudlidliza kwemishini, isenzo sokuqhwaza kanye nezinguquko ezingazelelwe zokucindezela kokusebenza.Ngakho-ke, amapayipi ahlanganisiwe angasetshenziselwa ukufakwa noma ukwakhiwa kokulima, okulula ukwakhiwa futhi okuphansi kwezindleko zobunjiniyela;Udonga lwamapayipi lubushelelezi, ukumelana nokugeleza okuphakathi kuncane, ukusetshenziswa kwamandla kwendawo yokudlulisa kuphansi, futhi akugqwali ngamakhemikhali ngama-hydrocarbon awuketshezi endaweni yokudlulisa.Amapayipi e-PE aphakathi nendawo aphezulu afanele igesi yasemadolobheni kanye namapayipi egesi yemvelo.Amapayipi e-PE ane-low density afanele amapayipi amanzi okuphuza, amapayipi ekhebula, amapayipi okufafaza ezolimo, amapayipi esiteshi sokupompa, njll. Amapayipi e-PE angasetshenziswa futhi ekunikezeni amanzi, ukugeleza kwamanzi kanye namapayipi omoya embonini yezimayini.
Isikhathi sokuthumela: Feb-23-2022
