Izindaba

"I-Metallocene" ibhekisela kumakhemikhali e-organic metal coordination eyakhiwe izinsimbi eziguqukayo (njenge-zirconium, i-titanium, i-hafnium, njll.) ne-cyclopentadiene. I-polypropylene ehlanganiswe ne-metallocene catalyst ibizwa ngokuthi i-metallocene polypropylene (mPP).

Imikhiqizo ye-Metallocene polypropylene (mPP) inokugeleza Okuphezulu, ukushisa okuphezulu, umgoqo ophakeme, Ukucaca nokungafihli okukhethekile, iphunga eliphansi, kanye nokusetshenziswa okungenzeka kumaFibers, ifilimu ye-Cast, i-Injection Molding, i-Thermoforming, i-Medical, kanye nokunye. Ukukhiqizwa kwe-metallocene polypropylene (mPP) kuhilela izinyathelo ezibalulekile ezimbalwa, okuhlanganisa ukulungiswa kwe-catalyst, i-polymerization, kanye nokucubungula ngemuva.

1. Ukulungiselela i-Catalyst:

Ukukhethwa kwe-Metallocene Catalyst: Ukukhethwa kwe-metallocene catalyst kubalulekile ekunqumeni izakhiwo ze-mPP ewumphumela. Lawa ma-catalysts ngokuvamile ahlanganisa izinsimbi eziguqukayo, ezifana ne-zirconium noma i-titanium, ehlanganiswe phakathi kwama-cyclopentadienyl ligands.

I-Cocatalyst Addition: Ama-catalysts e-Metallocene avame ukusetshenziswa ngokuhambisana ne-cocatalyst, ngokuvamile i-aluminium-based compound. I-cocatalyst yenza kusebenze i-metallocene catalyst, iyivumele ukuthi iqalise ukusabela kwe-polymerization.

2. I-Polymerization:

Ukulungiselela I-Feedstock: I-Propylene, i-monomer ye-polypropylene, ngokuvamile isetshenziswa njengesitoko sokuqala. I-propylene iyahlanzwa ukuze isuse ukungcola okungaphazamisa inqubo ye-polymerization.

Ukusethwa kwe-Reactor: Ukusabela kwe-polymerization kwenzeka ku-reactor ngaphansi kwezimo ezilawulwa ngokucophelela. Ukusethwa kwe-reactor kuhlanganisa i-metallocene catalyst, i-cocatalyst, nezinye izithasiselo ezidingekayo kuzakhiwo ze-polymer ezifiselekayo.

Izimo zePolymerization: Izimo zokusabela, ezifana nezinga lokushisa, ingcindezi, nesikhathi sokuhlala, zilawulwa ngokucophelela ukuze kuqinisekiswe isisindo se-molecular esifiselekayo kanye nesakhiwo se-polymer. Ama-Metallocene catalysts anika amandla ukulawula okunembe kakhudlwana phezu kwale mingcele uma kuqhathaniswa nama-catalyst avamile.

3. I-Copolymerization (Ngokuzithandela):

Ukufakwa kwama-Co-monomers: Kwezinye izimo, i-mPP ingase yenziwe i-copolymerized namanye ama-monomers ukuze kulungiswe izici zayo. Ama-co-monomers ajwayelekile afaka i-ethylene noma amanye ama-alpha-olefin. Ukufakwa kwama-co-monomers kuvumela ukwenziwa ngokwezifiso kwe-polymer kwezinhlelo zokusebenza ezithile.

4. Ukunqanyulwa kanye Nokuqedwa:

Ukunqanyulwa Kwesenzo: Uma i-polymerization isiqedile, ukusabela kuyanqanyulwa. Lokhu kuvame ukufezwa ngokwethula i-ejenti yokuqeda esabela ngeziphetho zeketango le-polymer esebenzayo, imise ukukhula okwengeziwe.

Ukucisha: I-polymer ibe isipholiswa ngokushesha noma icime ukuze kuvinjelwe ukusabela okwengeziwe kanye nokuqinisa i-polymer.

5. Ukubuyiswa kwePolymer kanye Nokucubungula Ngemva:

Ukuhlukaniswa kwePolymer: I-polymer ihlukaniswe nengxube yokusabela. Ama-monomers angaphenduliwe, izinsalela ze-catalyst, neminye imikhiqizo ekhiqizwayo kususwa ngamasu ahlukene okuhlukanisa.

Izinyathelo Zangemuva Kokucubungula: I-mPP ingase ibhekane nezinyathelo ezengeziwe zokucubungula, ezifana nokukhipha, ukuhlanganisa, kanye ne-pelletization, ukuze kuzuzwe ifomu nezakhiwo ezifunwayo. Lezi zinyathelo zivumela futhi ukufakwa kwezithasiselo ezifana nama-slip agents, ama-antioxidants, iziqinisi, ama-nucleating agents, ama-colorants, nezinye izithasiselo zokucubungula.

Ukuthuthukisa i-mPP: Ukungena Okujulile Ezindimeni Ezibalulekile Zokucubungula Izithasiselo

Ama-Slip Agents: Ama-Slip agents, afana nama-amide ama-long-chain fatty, avame ukungezwa ku-mPP ukunciphisa ukungqubuzana phakathi kwamaketanga e-polymer, ukuvimbela ukunamathela ngesikhathi sokucubungula. Lokhu kusiza ukuthuthukisa izinqubo ze-extrusion kanye nokubumba.

Izithuthukisi zokugeleza:Izithuthukisi zokugeleza noma izinsiza zokucubungula, njengama-wax e-polyethylene, zisetshenziselwa ukuthuthukisa ukugeleza kokuncibilika kwe-mPP. Lezi zithasiselo zinciphisa i-viscosity futhi zithuthukise amandla e-polymer okugcwalisa izimbotshana zesikhunta, okuholela ekuqhubekeni okungcono.

Ama-Antioxidants:

Ama-Stabilizers: Ama-Antioxidants ayizithasiselo ezibalulekile ezivikela i-mPP ekonakalisweni ngesikhathi sokucubungula. Ama-phenols avinjiwe kanye nama-phosphite asetshenziswa ngokujwayelekile ama-stabilizers avimbela ukwakheka kwama-radicals mahhala, avimbele ukuwohloka kokushisa kanye ne-oxidative.

Ama-Nucleating Agents:

Ama-Nucleating agents, njenge-talc noma amanye ama-inorganic compounds, ayengezwa ukuze akhuthaze ukwakheka kwesakhiwo se-crystalline esi-ode kakhulu ku-mPP. Lezi zithako zithuthukisa izakhiwo zemishini ye-polymer, okuhlanganisa ukuqina kanye nokumelana nomthelela.

Imibala:

Ama-Pigments Nodayi: Imibala ivamise ukufakwa ku-mPP ukuze kuzuzwe imibala ethile emkhiqizweni wokugcina. Ama-pigments namadayi akhethwa ngokusekelwe kumbala oyifunayo kanye nezidingo zokusetshenziswa.

Izilungisi Zomthelela:

Ama-Elastomers: Ezisetshenziswa lapho ukumelana komthelela kubalulekile, izilungisi zomthelela ezifana nerabha ye-ethylene-propylene zingangezwa ku-mPP. Lezi zilungisi zithuthukisa ukuqina kwe-polymer ngaphandle kokudela ezinye izakhiwo.

Ama-Compatibilizers:

Ama-Maleic Anhydride Grafts: Ama-Compatibilizer angasetshenziswa ukuthuthukisa ukuhambisana phakathi kwe-mPP namanye ama-polymers noma izithasiselo. I-Maleic anhydride grafts, isibonelo, ingathuthukisa ukunamathela phakathi kwezingxenye ezahlukene ze-polymer.

Ama-Slip nama-Antiblock Agents:

Ama-Slip Agents: Ngaphezu kokunciphisa ukungqubuzana, ama-slip agents angasebenza njengama-anti-block agents. Ama-antiblock agents avimbela ukunamathelana kwefilimu noma indawo yeshidi ngesikhathi sokugcinwa.

(Kubalulekile ukuqaphela ukuthi izithasiselo ezithile ezicutshungulwayo ezisetshenziswa ekwenziweni kwe-mPP zingahluka ngokusekelwe ekusetshenzisweni okuhlosiwe, izimo zokucubungula, nezinto ezibonakalayo ezifiswayo. Abakhiqizi bakhetha ngokucophelela lezi zengezo ukuze bathole ukusebenza kahle komkhiqizo wokugcina. Ukusetshenziswa kwama-catalyst e-metallocene ku-metallocene ukukhiqizwa kwe-mPP kunikeza izinga elengeziwe lokulawula nokunemba, okuvumela ukufakwa kwezithasiselo ngendlela engashunwa kahle ukuze kuhlangatshezwane nezidingo ezithile.)

Ukuvula Ukusebenza kahle丨Izixazululo Ezintsha ze-mPP: Iqhaza Lezengezo Zokucubungula Inoveli, Yini abakhiqizi be-mPP okudingeka bakwazi!

I-mPP ivele njenge-polymer eguquguqukayo, enikeza izakhiwo ezithuthukisiwe nokusebenza okuthuthukisiwe ezinhlelweni ezihlukahlukene. Kodwa-ke, imfihlo yempumelelo yayo ayikona nje kuphela ezicini zayo ezingokwemvelo kodwa nasekusetshenzisweni kwamasu kwezithasiselo ezithuthukisiwe zokucubungula.

I-SILIMER 5091yethula indlela entsha yokuphakamisa ukucutshungulwa kwe-metallocene polypropylene, enikeza enye indlela ephoqelelayo ezithasiselweni zendabuko ze-PPA, kanye nezixazululo zokuqeda izithasiselo ezisekelwe ku-fluorine ngaphansi kwemingcele ye-PFAS.

I-SILIMER 5091iyisengezo se-Fluorine-Free Polymer Processing sokukhipha impahla ye-polypropylene nge-PP njengesithwali esiqaliswe ngabakwa-SILIKE. Kungumkhiqizo we-polysiloxane masterbatch oshintshiwe we-organic modified, ongathuthela kumshini wokucubungula futhi ube nomthelela ngesikhathi sokucutshungulwa ngokusizakala komthelela wokuqala omuhle kakhulu wokugcobisa we-polysiloxane kanye nomthelela we-polarity wamaqembu aguquliwe. Inani elincane lomthamo lingathuthukisa ngempumelelo uketshezi nokucutshungulwa, linciphise i-die drool ngesikhathi se-extrusion, futhi lithuthukise isimo sesikhumba sikashaka, esisetshenziswa kabanzi ukuthuthukisa ukuthambisa nezici zangaphezulu ze-plastic extrusion.

NiniI-PFAS-Free Polymer Processing Aid(PPA) SILIMER 5091ifakwe ku-metallocene polypropylene (mPP) matrix, ithuthukisa ukugeleza kwe-mPP, inciphisa ukungqubuzana phakathi kwamaketanga e-polymer, futhi ivimbele ukunamathela ngesikhathi sokucubungula. Lokhu kusiza ukuthuthukisa izinqubo ze-extrusion kanye nokubumba. ukwenza kube lula izinqubo zokukhiqiza ezishelelayo nokuba negalelo ekusebenzeni kahle okuphelele.

Lahla isengezo sakho esidala sokucubungula,I-SILIKE Fluorine-free PPA SILIMER 5091yilokho okudingayo!