Ipulasitiki ye-Polypropylene (PP)
* I-Polypropylene iyi-thermoplastic ecishe ibe yikristalu. Inamandla okumelana nomthelela omkhulu, izakhiwo eziqinile zemishini, kanye nokumelana nezinyibilikisi ezahlukahlukene zezinto eziphilayo kanye nokugqwala kwesisekelo se-acid.
* Ukumelana okuhle kakhulu namakhemikhali Amazinga aphephile okudla ayatholakala.
* Imikhiqizo noma izingxenye zepulasitiki ze-PP ezenziwe ngokwezifiso
I-Polypropylene, efushaniswe ngokuthi i-PP, iyi-polymer eyenziwe nge-propylene ngokusebenzisa ukusabela kwe-polymerization. Iyinto emhlophe, efana ne-wax enokubukeka okucacile nokulula. Ifomula yamakhemikhali (C3H6)n, ukuminyana okungu-0.89 ~ 0.91g/cm3, iphuzu lokuncibilika elivuthayo elingu-164 ~ 170 ° C, elithambile ku-155 ° C noma ngaphezulu, ukusetshenziswa kwezinga lokushisa elingu--30 ~ 140 ° C.
Ayikwazi ukumelana nokugqwala yi-asidi, i-alkali, uketshezi lukasawoti kanye nezinhlobo eziningi zezinyibilikisi eziphilayo ezingaphansi kwama-80℃, futhi ingabola ngaphansi kokushisa okuphezulu kanye ne-oxidation. Isetshenziswa ezinhlobonhlobo zezicelo, kufaka phakathi ukupakishwa kwabathengi, izingxenye zepulasitiki embonini yezimoto kanye nezindwangu.
Yini ongayenza nge-PP Plastic?
I-Polypropylene iyinto yepulasitiki elula kakhulu ngokwesisindo. Ukubukeka kwayo akunambala futhi kucwebezela, futhi njengepulasitiki yezinga lokudla, isetshenziswa kabanzi ekupakisheni ukudla, njengebhokisi le-Styrofoam, izinkomishi zepulasitiki ze-PP, njalo njalo. I-Polypropylene ingahlukaniswa ngezigaba ezinhlanu eziyinhloko ngokuya ngezicelo zayo eziyinhloko: ukubumba umjovo we-PP, umdwebo we-PP, i-PP fiber, ifilimu ye-PP, kanye nepayipi le-PP.
Okulandelayo ezinye zezicelo ze-Polypropylene (pp)
- Amadivayisi ezokwelapha
- Izingxenye zezimoto
- Izitsha zokudla
- Ukupakisha
- Izitsha Zokudlela
- Amabhodlela
- Izingubo
- ithoyizi
- Izivalo zamabhodlela
- Imicu yezingubo
- Imikhiqizo elukiwe ngepulasitiki
- Izinto zokwakha
- Imikhiqizo yabathengi
- Ifenisha yengadi
- Izinto zasendlini ezincane
Izici ze-Polypropylene (PP)
Ukumelana namakhemikhali: Izisekelo nama-asidi ancibilikisiwe awasabelani ne-PP, okwenza kube isitsha esifanele salolu ketshezi (isib. izinto zokuhlanza, imikhiqizo yosizo lokuqala, njll.).
Ukunwebeka nokuqina: I-PP iyanwebeka ngaphakathi kobubanzi obuthile bokuphambuka futhi idlula ekuguqulweni kwepulasitiki ekuqaleni kwenqubo yokuguquguquka ngaphandle kokuqhekeka, ngakho-ke ivame ukubhekwa njengento "eqinile".
Ukumelana nokukhathala: I-PP igcina isimo sayo ngemva kokusonta nokugoba okuningi. Lesi sici sibaluleke kakhulu ekwenzeni amahinji ashukumayo.
Ukuvikela: Izinto ze-PP zinamandla aphezulu kagesi futhi ziyinto yokuvikela.
Ukudluliselwa: Kungenziwa ngemibala ecacile, kodwa ngokuvamile kwenziwa ngemibala engacacile ngokwemvelo enezinga elithile lokudluliselwa. Uma kudingeka ukudluliselwa okuphezulu, i-acrylic noma i-PC kufanele ikhethwe.
Izinto ze-PP zenziwa kanjani?
Njengamanye amapulasitiki, i-Polypropylene (PP) iqala "njengengxenye" (iqembu elilula) kusukela ekuhluzweni kwamafutha e-hydrocarbon futhi ihlangana nezinye izinto ezibangela ukwakheka kwamapulasitiki ngokusebenzisa ukusabela kwe-polymerization noma i-polycondensation.
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Inqubo yokukhiqiza i-Polypropylene (PP):
Impuphu etholakele ekugcineni idluliselwa kuma-silo empuphu bese iguqulwa ibe ama-pellet aqukethe uhla oluphelele lwe-
izithasiselo ezihlakazekile kahle.
Ukuvuselelwa kabusha kwepulasitiki ye-polypropylene (PP) kanye nokuvikelwa kwemvelo
Uma i-polypropylene isetshenziswa kabusha, kunciphisa ukusetshenziswa kwezinsizakusebenza ezilinganiselwe njenge-oyili negesi ye-propane. Cishe u-8% wamafutha omhlaba (cishe amathani ayizigidi ezingu-400) asetshenziswa ezindleleni zokukhiqiza ipulasitiki zendabuko, okungu-4% wawo osetshenziswa "njenge-feedstock" kanti omunye u-4% usetshenziswa ekukhiqizeni. Uma amapulasitiki ayekhiqizwa ngamapulasitiki asetshenziswa kabusha, ukusetshenziswa kwamandla nakho bekuzoncishiswa ngo-88%. Ngakho-ke, ukuphinda kusetshenziswe amapulasitiki e-polypropylene kunobungani nemvelo!
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