Uyini umehluko phakathi kwezinto zomkhiqizo ze-PP ne-MFPP?

I-PP (i-polypropylene) iyinto ejwayelekile yepulasitiki enokumelana okuhle nokushisa, ukumelana namakhemikhali kanye nokuxinana okuphansi. I-MFPP (i-polypropylene eguquliwe) iyinto ye-polypropylene eguquliwe enamandla nokuqina okuqinile. Kulezi zinto ezimbili, lesi sihloko sizonikeza isingeniso sesayensi esidumile maqondana nemithombo yezinto zokusetshenziswa, izinqubo zokulungiselela, izici, kanye nezinkambu zokusetshenziswa.

1. Umthombo wezinto ezingavuthiweI-PP kanye ne-MFPPIzinto zokusetshenziswa ze-PP zilungiswa ngokupholisha i-propylene kuphethiloli. I-Propylene iwumkhiqizo we-petrochemical otholakala kakhulu ngenqubo yokuqhekeka ezindaweni zokuhluza. I-MFPP ye-polypropylene eguquliwe ithuthukisa ukusebenza kwayo ngokufaka ama-modifiers ku-PP evamile. Lawa ma-modifiers angaba izithasiselo, ama-fillers noma amanye ama-modifiers ashintsha isakhiwo se-polymer kanye nokwakheka kwayo ukuze ayinike izakhiwo zomzimba nezamakhemikhali ezingcono.

2. Inqubo yokulungiselela i-PP ne-MFPP Ukulungiswa kwe-PP kufezwa kakhulu ngokusabela kwe-polymerization. I-propylene monomer i-polymerized ibe uchungechunge lwe-polymer olunobude obuthile ngesenzo se-catalyst. Le nqubo ingenzeka ngokuqhubekayo noma ngezikhathi ezithile, emazingeni okushisa aphezulu kanye nokucindezela. Ukulungiswa kwe-MFPP kudinga ukuxuba i-modifier kanye ne-PP. Ngokuxuba okuncibilikisiwe noma ukuxuba isixazululo, i-modifier ihlakazeka ngokulinganayo ku-PP matrix, ngaleyo ndlela kuthuthukiswe izakhiwo ze-PP.

3. Izici ze-PP kanye ne-MFPP I-PP inokumelana okuhle nokushisa kanye nokuqina kwamakhemikhali. Kuyi-ipulasitiki esobala ngokuqina okuthile nokuqina. Kodwa-ke, amandla nokuqina kwe-PP evamile kuphansi kakhulu, okuholela ekungenisweni kwezinto eziguquliwe njenge-MFPP. I-MFPP yengeza ezinye iziguquli ku-PP ukuze yenze i-MFPP ibe namandla, ukuqina kanye nokumelana okungcono komthelela. Iziguquli zingashintsha futhi ukuqhutshwa kokushisa, izakhiwo zikagesi kanye nokumelana nesimo sezulu kwe-MFPP.

4. Amasimu okusetshenziswa kwe-PP ne-MFPP I-PP isetshenziswa kabanzi futhi ivame ukusetshenziswa ezitsheni, ifenisha, izinto zikagesi kanye neminye imikhiqizo empilweni yansuku zonke. Ngenxa yokumelana kwayo nokushisa kanye nokumelana namakhemikhali, i-PP isetshenziswa futhi emapayipini, ezitsheni, kumavalvu nakwezinye izinto embonini yamakhemikhali. I-MFPP ivame ukusetshenziswa ezisetshenzisweni ezidinga amandla aphezulu kanye nokuqina, njengezingxenye zezimoto, amabhokisi omkhiqizo kagesi, izinto zokwakha, njll.

Ekuphetheni, i-PP ne-MFPP zizinto ezimbili ezivamileizinto zepulasitiki. I-PP inezici zokumelana nokushisa, ukumelana nokugqwala kwamakhemikhali kanye nokuxinana okuphansi, kanti i-MFPP ishintshe i-PP ngalesi sisekelo ukuze ithole amandla angcono, ukuqina kanye nokumelana nomthelela. Lezi zinto ezimbili zidlala indima ebalulekile emikhakheni ehlukene yokusetshenziswa, ziletha ukulula kanye nentuthuko ezimpilweni zethu kanye nasemasimini ahlukahlukene ezimboni.