Yini impahla ye-PP?
I-PP imfushane nge-polypropylene, i-thermoplastic polymer eyenziwe nge-polymerication of propelene monomer. Njengento ebalulekile yepulasitiki eluhlaza, i-PP inezicelo eziningi ezahlukahlukene empilweni yansuku zonke kanye nokukhiqizwa kwezimboni. Kulesi sihloko, sizohlaziya ngokuningiliziwe ukuthi yiziphi izinto ze-PP, kanye nezimpawu zalo, ukusetshenziswa kanye nezinzuzo.
Izici eziyisisekelo zezinto ze-PP
Izinto ze-PP zinezakhiwo ezinhle kakhulu zomzimba nezamakhemikhali. Ubuningi bawo buphansi, kuphela nge-0.9 g / cm³, ubude obuphansi kakhulu be-plastitics ejwayelekile, ngakho-ke inokumelana nokushisa okulula kwesisindo.PP nakho kuhle kakhulu, kungasetshenziswa emazingeni okushisa angenhla kwe-100 ° C ngaphandle kwe-deformation , futhi iningi lama-acid, ama-alkali kanye ne-organic solvents anokumelana kahle nokugqwala. Ngenxa yalezi zinzuzo, okokusebenza kwe-PP sekuphenduke ukukhetha okuhle kwezinto ezibonakalayo emikhakheni eminingi.
Ukuhlukaniswa kanye nokuguqulwa kwezinto ze-PP
Izinto ze-PP zingahlukaniswa izigaba ezimbili eziyinhloko, i-homopolymer polypropylene ne-copolymer polypropylene, ngokuya ngesakhiwo se-molefanelar nezakhiwo. I-Homopolymer Polypropylene inobuqili obukhulu namandla, okwenza ilungele imikhiqizo enezidingo eziphezulu zobulukhuni, ngenkathi i-copolymer polypropylene inobunzima obungcono namandla okubangela izicelo ezidinga ukumelana nomthelela ongcono.pp Zilungiswe ngokungeza imicu yengilazi, ama-filler amaminerali, noma amalangabi ama-retaardants ukuthuthukisa izakhiwo zawo zokuphikisana nokumelana nokushisa, ukufeza izidingo zohlobo olubanzi lwezicelo. I-PP nayo ingashintshwa ngokungeza imicu yengilazi noma ama-filler amaminerali noma amalangabi amalangabi ukuze athuthukise izakhiwo zawo ezibonakalayo kanye nokumelana nokushisa ukuze ahlangabezane nobubanzi bezicelo ezibanzi.
Izindawo zohlelo lokusebenza lwe-PP impahla
Izinto ze-PP zingatholakala yonke indawo empilweni, futhi izicelo zazo zimboza izinkambu eziningi, kusuka ezintweni zokupakisha kanye nemikhiqizo yasendlini embonini yezimoto kanye nemishini yezokwelapha. Emkhakheni wokupakisha, impahla ye-PP isetshenziswa kabanzi ekukhiqizweni kweziqukathi zokudla, amafilimu ebhodlela lesiphuzo, amafilimu neminye imikhiqizo, ethandekayo ngoba ayinazo ubuthi, ayinambitha futhi ihambisana namazinga okuphepha okudla. Emikhiqizweni yasendlini, okokusebenza kwe-PP kuvame ukusetshenziswa ukwenza amabhokisi okugcina, amabhasikidi wokuwasha, ifenisha nokunye. Ngenxa yokushisa kwayo okuhle kanye nokumelana kwamakhemikhali, i-pp isetshenziswa futhi embonini yezimoto ukwenza ama-bumpers, ama-dashboards kanye namacala ebhethri, amabhodlela okulahlayo, amabhodlela we-infusion kanye nezinsimbi zokuhlinza.
Imvelo inobungane futhi iyasimeme
Eminyakeni yamuva nje, njengoba ukuqwashisa ngezemvelo sekukhuphukile, izinto ze-PP zithole ukunakwa okwengeziwe ngenxa yokuvuselelwa kwazo kanye nomthelela ophansi wezemvelo. Izinto ze-PP zingaphindiselwa kabusha ngokuvuselela kabusha ngemuva kokulahlwa, ukunciphisa ukungcoliswa kwemvelo. Yize okokusebenza kwe-PP akuyona into engathandeki, umthelela wayo wezemvelo angancishiswa ngempumelelo ngokuphathwa kwemfucuza yesayensi nokuphinda usebenze kabusha. Ngakho-ke, okokusebenza kwe-PP kubhekwa njengento enobungani enobungani bemvelo futhi eqhubekayo.
Ukubeka kafushane
Izinto ze-PP ziyinto eguquguqukayo yepulasitiki enezicelo ezahlukahlukene. Ubuningi bayo obuphansi, ukumelana nokushisa, ukumelana kwamakhemikhali kanye nokuvuselelwa kabusha kwenza kube ngenye yezinto ezisemqoka embonini yezimboni zanamuhla nasekuphileni kwansuku zonke. Ngokuqonda ukuthi yiziphi izinto ze-PP ezisetshenziswayo nezindawo zalo zohlelo lokusebenza, ungasebenzisa kangcono izinzuzo zalokhu okuqukethwe ukuhlinzeka inketho ethembekile yokwakheka nokukhiqizwa kwazo zonke izinhlobo zemikhiqizo.