Iyini impahla ye-PP?
I-PP ifushane nge-Polypropylene, i-polymer ye-thermoplastic eyenziwe nge-polymerisation ye-propylene monomer. Njengempahla ebalulekile yepulasitiki, i-PP inezinhlobonhlobo zezicelo ekuphileni kwansuku zonke nokukhiqizwa kwezimboni. Kulesi sihloko, sizohlaziya ngokuningiliziwe ukuthi iyini impahla ye-PP, kanye nezici zayo, ukusetshenziswa kanye nezinzuzo.
Izici eziyisisekelo zezinto ze-PP
Izinto ze-PP zinezici ezinhle kakhulu zomzimba namakhemikhali. Ukuminyana kwayo kuphansi, cishe ku-0.9 g/cm³ kuphela, kuwukuminyana okuphansi kakhulu kwamapulasitiki avamile, ngakho inesisindo esilula.PP ukumelana nokushisa kwempahla nokumelana namakhemikhali nakho kuhle kakhulu, kungasetshenziswa emazingeni okushisa angaphezu kuka-100 ° C ngaphandle kokuguquka. , futhi ama-asidi amaningi, ama-alkali nezincibilikisi eziphilayo anokumelana nokugqwala okuhle. Ngenxa yalezi zinzuzo, impahla ye-PP isibe yisinqumo esihle kakhulu emikhakheni eminingi.
Ukuhlukaniswa nokuguqulwa kwezinto ze-PP
Izinto ze-PP zingahlukaniswa zibe izigaba ezimbili eziyinhloko, i-homopolymer polypropylene ne-copolymer polypropylene, kuye ngokuthi i-molecular structure kanye nezakhiwo zabo. I-Homopolymer polypropylene inokuqina okuphezulu namandla, okwenza ifanelekele imikhiqizo enezidingo zobulukhuni obuphezulu, kuyilapho i-copolymer polypropylene inokuqina okungcono namandla okuthinta ngenxa yokwethulwa kwamayunithi e-vinyl, futhi ivame ukusetshenziswa ezinhlelweni ezidinga ukumelana nomthelela ongcono.PP ingakwazi futhi ilungiswe ngokwengeza imicu yengilazi, izigcwalisi zamaminerali, noma izinqamuli zomlilo ukuze kuthuthukiswe izakhiwo zayo ezingokomzimba nokumelana nokushisa, ukuze kuhlangatshezwane nezidingo zohlu olubanzi lwe izicelo. I-PP ingabuye iguqulwe ngokungeza imicu yengilazi noma izigcwalisi zamaminerali noma ama-flame retardants ukuze kuthuthukiswe izakhiwo zayo ezingokomzimba kanye nokumelana nokushisa ukuze kuhlangatshezwane nohlu olubanzi lwezinhlelo zokusebenza.
Izindawo zokufaka izicelo zezinto ze-PP
Izinto ze-PP zingatholakala yonke indawo empilweni, futhi ukusetshenziswa kwazo kuhlanganisa imikhakha eminingi, kusukela ezintweni zokupakisha nemikhiqizo yasendlini kuya embonini yezimoto kanye nemishini yezokwelapha. Emkhakheni wokupakisha, izinto ze-PP zisetshenziswa kakhulu ekukhiqizeni iziqukathi zokudla, izigqoko zamabhodlela eziphuzo, amafilimu neminye imikhiqizo, ethandwa ngoba ayinabo ubuthi, ayinambitheki futhi ihambisana namazinga okuphepha kokudla. Emikhiqizweni yasendlini, izinto ze-PP zivame ukusetshenziselwa ukwenza amabhokisi okugcina, amabhasikidi elondolo, ifenisha nokunye. Ngenxa yokushisa kwayo okuhle nokumelana namakhemikhali, i-PP iphinde isetshenziswe embonini yezimoto ukwenza ama-bumpers, amadeshibhodi namacala ebhethri, njll. I-PP iphinde isetshenziswe kabanzi emkhakheni wezokwelapha, njengama-syringe alahlwayo, amabhodlela okumnika kanye nezinsimbi zokuhlinza.
Inobungane Emvelweni futhi Iyasimema
Eminyakeni yamuva nje, njengoba ukuqwashisa ngemvelo kuye kwanda, izinto ze-PP zithole ukunakwa okwengeziwe ngenxa yokuphinda zisetshenziswe kanye nomthelela ophansi kwezemvelo. Izinto ze-PP zingacutshungulwa kabusha ngokugaywa kabusha ngemva kokulahlwa, ukunciphisa ukungcoliswa kwemvelo. Nakuba impahla ye-PP ingaboli, umthelela wayo kwezemvelo ungancishiswa ngempumelelo ngokuphathwa kwemfucuza yesayensi nokugaywa kabusha. Ngakho-ke, impahla ye-PP ibhekwa njengempahla yepulasitiki enobungani nemvelo futhi esimeme.
Isifinyezo
I-PP impahla iyimpahla yepulasitiki eguquguqukayo enezinhlobonhlobo zezicelo. Ukuminyana kwayo okuphansi, ukumelana nokushisa, ukumelana namakhemikhali kanye nokuphinda kusetshenziswe kabusha kuyenza ibe enye yezinto ezibalulekile embonini yesimanje nempilo yansuku zonke. Ngokuqonda ukuthi iyini impahla ye-PP nezindawo zayo ezisetshenziswayo, ungasebenzisa kangcono izinzuzo zalesi sihloko ukuze unikeze inketho ethembekile yokuklama nokukhiqizwa kwazo zonke izinhlobo zemikhiqizo.