Izindaba

"I-Metalcocene" isho amakhompiyutha okuxhumanisa ama-organic wensimbi asungulwa ngama-tusher metals (njenge-zirconium, titanium, hafnium, njll.) Ne-cyclopentadiene. I-Polypropylene eyenziwe nge-MetalloCene Catalysts ibizwa nge-metallocene polypropylene (MPP).

Imikhiqizo yeMetalloCene PolyPropylene (MPP) inokugeleza okuphezulu, ukushisa okuphezulu, isithiyo esiphakeme, ukucaciseleka okuphezulu kanye nokusobala, amaphunga aphansi, kanye nokubumba okungenzeka kube yizokwelapha, i-thermoforming, ezokwelapha, ezokwelashwa, ezokwelapha, kanye nabanye. Ukukhiqizwa kweMetalloCene Polypropylene (MPP) kubandakanya izinyathelo ezimbalwa ezibalulekile, kufaka phakathi ukulungiswa kwe-catalyst, i-polymerization, kanye nokusebenza kwangemva kokusebenza.

1. Ukulungiselela kweCatalyst:

Ukukhetha kweMetalloCene Catalyst: Ukukhetha kweMetalloCene Catalyst kubalulekile ekunqumeni izakhiwo ze-MPP eziphumela. Lawa ma-catalysts avame ukufaka izinsimbi zokushintsha, njenge-zirconium noma i-titanium, efakwe sandwich phakathi kwama-cyclopentadieeenll ligings.

I-Cocatalystst engezansi: I-MetalloCene Catalysts ivame ukusetshenziswa ngokubambisana ne-cocatalyst, imvamisa i-aluminium-based compound. I-cocatalyst isebenze i-metallocene catalyst, ukuyivumela ukuthi iqale ukusabela kwe-polymerization.

2. I-Polymerization:

Ukulungiselela Okuphakelayo: I-Porylene, i-monomer ye-polypropylene, isetshenziswa ngokujwayelekile njenge-feed feed. I-propelene ihlanjululwa ukususa ukungcola okungaphazamisa inqubo ye-polymerization.

Ukusetha kwe-Reactor: Ukusabela kwe-polymerization kwenzeka kwi-reactoror ngaphansi kwezimo ezilawulwa ngokucophelela. I-Reactor Setup ifaka i-MetalloCene Catalyst, i-cocatalyst, nezinye izengezo ezidingekayo kwizakhiwo ezifiselekayo ze-polymer.

Izimo ze-Polymerization: Izimo zokuphendula, ezinjengokushisa, ingcindezi, nesikhathi sokuhlala, zilawulwa ngokucophelela ukuze ziqinisekise isisindo se-molecular esifiselekayo nesakhiwo se-polymer. I-Metallocene Catalysts inika amandla okulawula okuqondile ngale mikhakha ngokuqhathaniswa nezinkomo zendabuko.

3. I-Copolymerization (Ngokuzithandela):

Ukufakwa kwama-co-monomers: Kwezinye izimo, i-MPP ingahle isetshenziswe namanye ama-monomers ukuguqula izakhiwo zayo. Ama-co-monomers ajwayelekile ahlanganisa i-ethylene noma amanye ama-alpha-olefins. Ukufakwa kwama-co-monomers kuvumela ukwenza ngokwezifiso i-polymer yezinhlelo ezithile.

4. Ukuqedwa nokucishwa:

Ukuqedwa kokuphendula: Lapho i-polymerization isiqediwe, ukusabela kunqanyulwa. Lokhu kuvame ukutholwa ngokwazisa i-ejenti yokuqedwa okuphathelene ne-polymer chain ephela, ukumisa ukukhula okwengeziwe.

Ukucishwa: I-polymer iphoqelelwa ngokushesha noma icijwe ukuvikela okwengeziwe futhi ukuqinisa i-polymer.

I-5. Ukuvuselelwa kwe-polymer kanye nokusebenza ngemuva kwesikhathi:

Ukuhlukaniswa kwe-polymer: I-polymer ihlukaniswe nengxube yokusabela. Ama-monomers angeqiwe, izinsalela ze-catalyst, kanye neminye imikhiqizo eyenziwe ngamasu ahlukahlukene wokuhlukanisa.

Izinyathelo zokufaka ezengezo: I-MPP ingahle ibhekane nezinyathelo ezingezekile zokucubungula, njengokukhishwa, okuhlanganisiwe, kanye ne-pelletization, ukufeza ifomu elifunekayo nezakhiwo. Lezi zinyathelo zivumela nokufakwa kwezithasiselo ezifana nama-ejenti we-slip, ama-antioxidants, izinkundla, ama-ejenti, ama-ejenti, ama-colorants, nezinye izithasiselo.

Ukulungiselela i-MPP: Ukungena okujulile kuzindima ezisemqoka zokucubungula izengezo

Ama-ejenti ashelelayo: Ama-ejenti oshelelayo, anjenge-antides enamafutha amade, avame ukungezwa ku-MPP ukunciphisa ukungezwani phakathi kwamaketanga we-polymer, ukuvimbela ukunamathela ngesikhathi sokucutshungulwa. Lokhu kusiza ukuthuthukisa ukukhishwa nezinqubo zokubumba.

Izikhungi zokugeleza:Izikhungi zokugeleza noma izinsiza ezisebenzayo, njenge-polyethylene ama-waxes, zisetshenziselwa ukuthuthukisa ukuhamba kwe-MPP. Lezi izengezo zinciphisa ukubonakala futhi zithuthukise amandla we-polymer ukugcwalisa ama-callities ambi, okuholela ekusebenzikeni okungcono.

Ama-antioxidants:

Ama-Stagilizer: ama-antioxidants ayizengezo ezibalulekile ezivikela i-MPP ekujuleni kwezokulungisa ngesikhathi sokucutshungulwa. Ama-Phenols avinjelwe ama-Phenols nama-phosfutes ajwayele ukugcinwa okuvinjelwa okuvimbela ukwakheka kwama-radicals wamahhala, ukuvimbela ukonakaliswa okushisayo noxidative.

Ama-ejenti we-nuclileating:

Ama-ejenti we-nuclileating, anjenge-talc noma amanye amakhompiyutha e-inorganic, angeziwe ukukhuthaza ukwakheka kwesakhiwo se-crystalline esithe xaxa e-MPP. Lezi izengezo zithuthukisa izakhiwo ze-polymer's mehendi, kufaka phakathi ukuqina nokumelana nomthelela.

Ama-Colorants:

Umbala nodayi: Ama-Colorants avame ukufakwa kwi-MPP ukufeza imibala ethile kumkhiqizo wokugcina. Ama-pigments kanye namadayi akhethiwe asuselwa kumbala oyifunayo nezidingo zohlelo lokusebenza.

I-Umthelela Modifariers:

Ama-elastomers: Kuhlelo lokusebenza lapho ukumelana nomthelela kubucayi khona, ukuguquguquka komthelela onjenge-ethylene-propylene rubber kungangezwa ku-MPP. Lezi zinguquko zithuthukisa ubulukhuni be-polymer ngaphandle kokudela ezinye izakhiwo.

Abahlanganisi:

Ama-Sulic Anhydride Graft: Ama-compatipilizer angasetshenziselwa ukuthuthukisa ukuhambisana phakathi kwe-MPP namanye ama-polymers noma izengezo. Okwezifiso ze-Anhydride Graft, ngokwesibonelo, kungathuthukisa ukunamathela phakathi kwezakhi ezahlukahlukene ze-polymer.

Ama-ejenti we-antiblock ne-antiblock:

Ama-ejenti we-Slip: Ngaphezu kokunciphisa ukungezwani, ama-ejenti okushelela nawo angasebenza njengama-anti-block agents. Ama-AntiBlock Agents avimba ukunamathela ndawonye kwefilimu noma eshidi lokugcina lapho kugcinwa khona.

(Kubalulekile ukuqaphela ukuthi izengezo ezikhethekile ezisetshenziswa ekwakhekeni kwe-MPP zingahlukahluka ngokususelwa kuhlelo lokusebenza okuhlosiwe, ukucubungula izilinganiso ze-metallocene ku-additives ye-MPP zithola kahle ukuze zihlangane kahle Izidingo.)

Ukuvula ukusebenza kahle丨Izisombululo ezintsha ze-MPP: Indima Yezengezo Zokucubungula Inoveli, Yini abakhiqizi be-MPP okudingeka bazi!

I-MPP ivele njenge-polymer yezinguquko, inikeza izakhiwo ezithuthukisiwe kanye nokusebenza okuthuthukile kwezicelo ezahlukahlukene. Kodwa-ke, imfihlo ngemuva kwempumelelo yayo ayitholakali kuphela ezicini zayo ezingokwemvelo kodwa nasekusetshenzisweni kwamasu wokucubungula okuthuthukile.

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NiniI-PFAS-Free Polymer Processing Aid (PPA) Silimer 5091ifakwe kwi-matrix ye-metallocne polypropylene (i-MPP), ithuthukisa ukuhamba kwe-MPP, yehlisa ukungqubuzana phakathi kwamaketanga we-polymer, futhi ivimbela ukunamathela ngesikhathi sokucutshungulwa. Lokhu kusiza ukuthuthukisa ukukhishwa nezinqubo zokubumba. Ukwenza lula izinqubo zokukhiqiza ezibushelelezi futhi zifaka isandla ekusebenzeni kahle.

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