Iyini i-polypropylene? -Izakhiwo, Izicelo kanye Nezinzuzo zePolypropylene
Iyini iPolypropylene (PP)? I-Polypropylene iyi-polymer ye-thermoplastic eyenziwe nge-polymerisation ye-propylene monomers futhi ingenye yezinto zepulasitiki ezisetshenziswa kakhulu emhlabeni. Ngenxa yezakhiwo zayo eziyingqayizivele zamakhemikhali nezomzimba, i-polypropylene ithatha isikhundla esibalulekile ezimbonini, zezokwelapha, zendlu kanye nezicelo zokupakisha zokudla. Kulesi sihloko, sibheka ngokujulile izakhiwo eziyisisekelo ze-polypropylene, ukusetshenziswa kwayo okuyinhloko kanye nezinzuzo zayo.
Izici eziyisisekelo ze-polypropylene
Iyini i-polypropylene? Ngokuya ngesakhiwo samakhemikhali, i-polypropylene iyi-polymer eyakhiwe ngokuhlanganisa i-polymerisation yama-propylene monomers. Isakhiwo sayo samangqamuzana sinokulinganisa okuphezulu futhi ngokuvamile sitholakala kufomu le-semi-crystalline. Lesi sakhiwo se-symmetry ne-crystalline sinikeza i-polypropylene inani lezinto ezibonakalayo ezinhle kakhulu, njengendawo ephezulu yokuncibilika, ukuminyana okuphansi kanye nokuzinza okuhle kwamakhemikhali. Iphuzu lokuncibilika le-polypropylene livamise ukuba phakathi kuka-130°C no-171°C, okuyivumela ukuthi ihlale izinzile ngokwesimo sezulu emazingeni okushisa aphezulu. Ngokuminyana okungaba ngu-0.9 g/cm³, i-polypropylene ilula kunamanye amapulasitiki amaningi avamile njenge-polyethylene futhi inokumelana nokugqwala okuhle kakhulu.
Izicelo ezibalulekile ze-polypropylene
Iyini i-polypropylene? Iyini ukusetshenziswa kwayo ezimbonini ezihlukahlukene? Ngenxa yezakhiwo zayo ezihlukahlukene, i-polypropylene isetshenziswa ezinhlobonhlobo zezinhlelo zokusebenza. Embonini yokupakisha, i-polypropylene isetshenziswa ngobuningi bemikhiqizo efana nokupakishwa kokudla, amakepisi namafilimu. Ukumelana kwayo namakhemikhali nokumelana nomswakama kuyenza ilungele ukupakishwa kokudla, iqinisekise ukuphepha kokudla nempilo yeshelufu. Emkhakheni wempahla yasendlini, i-polypropylene isetshenziselwa ukwenza ifenisha, iziqukathi nezindwangu, phakathi kwezinye izinto, ngenxa yesisindo sayo esincane nokuqina, kanye nokulula kwayo ukuhlanza nokugcinwa kwayo. Ngaphezu kwalokho, embonini yezokunakekelwa kwempilo, i-polypropylene isetshenziselwa ukukhiqiza amasirinji, amashubhu okuhlola namanye amathuluzi ezokwelapha alahlwayo ngenxa yokuhambisana kwayo okuhle kwe-biocompatibility kanye nezindawo zokulwa namagciwane.
Izinzuzo ze-Polypropylene kanye Nokuthuthukiswa Kwekusasa
Uma kuziwa kulokho i-polypropylene, izinzuzo zayo ezivelele zihlanganisa ukumelana nokushisa namakhemikhali, kanye nezindleko eziphansi zokukhiqiza. Iphuzu eliphakeme lokuncibilika le-polypropylene livumela ukuthi lisetshenziswe emazingeni okushisa aphezulu ngaphandle kwezinkinga zokuhlanekezela noma ukuncibilika. Ukumelana kwayo okuhle kakhulu namakhemikhali kuvumela i-polypropylene ukuthi ihlale izinzile futhi ingagqwali lapho ivezwe kuma-acids, ama-alkali nezincibilikizi eziphilayo. Inqubo yokukhiqiza ye-polypropylene elula uma kuqhathaniswa futhi enezindleko eziphansi iholele ekusetshenzisweni kwayo kabanzi emikhiqizweni eminingi yokuphila kwansuku zonke.
Njengoba ukuqwashisa ngemvelo kukhula, ukugaywa kabusha kwe-polypropylene sekube yinzuzo enkulu. Ubuchwepheshe besimanje buvumela ukugaywa kabusha kwezinto ezilahlwayo ze-polypropylene, okunciphisa kakhulu ukuchithwa kwezinsiza kanye nokungcoliswa kwemvelo. Ngakho-ke, ukuthuthukiswa kwesikhathi esizayo kwezinto zokwakha ze-polypropylene kuzonaka kakhulu ukuvikelwa kwemvelo kanye nokusimama, futhi kuthuthukise ukusebenza kwayo kanye nobubanzi bokusebenzisa ngokusebenzisa emisha yezobuchwepheshe.
Isiphetho
Iyini i-polypropylene material? Ukuhlaziywa okuningiliziwe kuleli phepha kubonisa ukuthi i-polypropylene iyi-polymer ye-thermoplastic enezinhlobonhlobo zezinhlelo zokusebenza kanye nezakhiwo eziningi ezinhle kakhulu. Iphuzu layo eliphakeme lokuncibilika, ukumelana namakhemikhali, isisindo esincane, kanye nezindleko eziphansi kuyenza ibaluleke ezimbonini eziningi. Ngokuthuthukiswa kobuchwepheshe obunobungani bemvelo, i-polypropylene isilungele ukusetshenziswa okuthembisayo nakakhulu esikhathini esizayo. Uma ufuna impahla yepulasitiki esebenza kahle futhi ethengekayo, i-polypropylene ngokuqinisekile iyindlela okufanele icatshangelwe ngayo.