Izindaba

Igama elithi “Metallocene” libhekisela kumakhemikhali okuhlanganisa insimbi ephilayo akhiwe yizinsimbi zokuguquka (njenge-zirconium, i-titanium, i-hafnium, njll.) kanye ne-cyclopentadiene. I-Polypropylene eyenziwe ngama-catalyst e-metallocene ibizwa ngokuthi i-metallocene polypropylene (mPP).

Imikhiqizo ye-Metallocene polypropylene (mPP) inokugeleza okuphezulu, ukushisa okuphezulu, isithiyo esiphezulu, ukucaca okuvelele kanye nokucaca, iphunga eliphansi, kanye nokusetshenziswa okungenzeka ku-Fibers, Cast Film, Injection Molding, Thermoforming, Medical, kanye nabanye. Ukukhiqizwa kwe-metallocene polypropylene (mPP) kuhilela izinyathelo eziningana ezibalulekile, okuhlanganisa ukulungiswa kwe-catalyst, i-polymerization, kanye nokucubungula ngemuva.

1. Ukulungiswa kwe-Catalyst:

Ukukhethwa kwe-Metallocene Catalyst: Ukukhethwa kwe-metallocene catalyst kubalulekile ekunqumeni izakhiwo ze-mPP ephumayo. Lawa ma-catalyst ngokuvamile ahilela izinsimbi zokuguquka, njenge-zirconium noma i-titanium, ezihlanganiswe phakathi kwama-cyclopentadienyl ligands.

Ukwengezwa kwe-Cocatalyst: Ama-catalyst e-Metallocene avame ukusetshenziswa kanye ne-cocatalyst, ngokuvamile i-compound esekelwe ku-aluminium. I-cocatalyst isebenzisa i-catalyst ye-metallocene, iyivumela ukuthi iqale ukusabela kwe-polymerization.

2. Ukwenziwa kwe-polymer:

Ukulungiswa Kwezitsha Zokudla: I-Propylene, i-monomer ye-polypropylene, ivame ukusetshenziswa njenge-feedstock eyinhloko. I-propylene iyahlanzwa ukuze kususwe ukungcola okungaphazamisa inqubo yokwenza i-polymerization.

Ukusethwa Kwe-Reactor: Ukusabela kwe-polymerization kwenzeka ku-reactor ngaphansi kwezimo ezilawulwa ngokucophelela. Ukusethwa kwe-reactor kufaka phakathi i-catalyst ye-metallocene, i-cocatalyst, nezinye izithasiselo ezidingekayo kwizakhiwo ze-polymer ezifunwayo.

Izimo Zokwenziwa Kwe-polymer: Izimo zokusabela, njengokushisa, ingcindezi, kanye nesikhathi sokuhlala, zilawulwa ngokucophelela ukuqinisekisa isisindo sama-molecule esifunwayo kanye nesakhiwo se-polymer. Ama-catalyst e-Metallocene avumela ukulawula okunembe kakhulu kulezi zinhlaka uma kuqhathaniswa nama-catalyst endabuko.

3. I-Copolymerization (Ongakukhetha):

Ukufakwa kwama-Co-monomer: Kwezinye izimo, i-mPP ingase ihlanganiswe namanye ama-monomer ukuze kuguqulwe izakhiwo zayo. Ama-co-monomer avamile afaka i-ethylene noma amanye ama-alpha-olefin. Ukufakwa kwama-co-monomer kuvumela ukwenza ngokwezifiso i-polymer ukuze kusetshenziswe izinhlelo ezithile.

4. Ukuqedwa Nokucinywa:

Ukuphela Kokusabela: Uma i-polymerization isiqediwe, ukusabela kuyaqedwa. Lokhu kuvame ukufezwa ngokuletha i-agent yokuqeda ephendula neziphetho ze-polymer chain esebenzayo, imise ukukhula okuqhubekayo.

Ukucima: I-polymer ipholiswa ngokushesha noma icinywe ukuze kuvinjelwe ukusabela okwengeziwe nokuqinisa i-polymer.

5. Ukubuyiselwa Kwe-Polymer Nokucutshungulwa Kwayo Ngemva Kokucubungula:

Ukuhlukaniswa kwe-Polymer: I-polymer ihlukaniswe nengxube yokusabela. Ama-monomer angaphendulwanga, izinsalela ze-catalyst, kanye neminye imikhiqizo engaphansi kwayo kususwa ngezindlela ezahlukene zokuhlukanisa.

Izinyathelo Zokucubungula Ngemva Kokucubungula: I-mPP ingadlula ezinyathelweni ezengeziwe zokucubungula, njengokukhipha, ukuhlanganisa, kanye nokufaka i-pelletization, ukuze kufezwe isimo kanye nezakhiwo ezifiselekayo. Lezi zinyathelo zivumela nokufakwa kwezithasiselo ezifana nama-slip agents, ama-antioxidants, ama-stabilizers, ama-nucleating agents, ama-colorants, nezinye izithasiselo zokucubungula.

Ukuthuthukisa i-mPP: Ukujula Ezindimeni Ezibalulekile Zokucubungula Izithasiselo

Ama-Slip Ejenti: Ama-slip agent, njenge-long-chain fatty amides, avame ukungezwa ku-mPP ukunciphisa ukungqubuzana phakathi kwamaketanga e-polymer, ukuvimbela ukunamathela ngesikhathi sokucubungula. Lokhu kusiza ukuthuthukisa izinqubo zokukhipha kanye nokubumba.

Izithuthukisi Zokugeleza:Izithuthukisi zokugeleza noma izinsiza zokucubungula, njenge-polyethylene wax, zisetshenziselwa ukuthuthukisa ukugeleza kokuncibilika kwe-mPP. Lezi zithasiselo zinciphisa i-viscosity futhi zithuthukise ikhono le-polymer lokugcwalisa imigodi yesikhunta, okuholela ekucutshungulweni okungcono.

Ama-Antioxidant:

Iziqinisi: Ama-antioxidants ayizithasiselo ezibalulekile ezivikela i-mPP ekuwohlokeni ngesikhathi sokucubungula. Ama-phenol nama-phosphite avinjiwe avame ukusetshenziswa njengeziqinisi ezivimbela ukwakheka kwama-free radicals, okuvimbela ukonakala kokushisa kanye ne-oxidative.

Ama-Nucleating Ejenti:

Ama-nucleating agents, njenge-talc noma amanye ama-inorganic compounds, ayengezwa ukukhuthaza ukwakheka kwesakhiwo sekristalu esihlelekile ku-mPP. Lezi zithasiselo zithuthukisa izakhiwo ze-polymer, okuhlanganisa ukuqina nokumelana nokushayisana.

Izinto zokufaka imibala:

Ama-Pigment namaDayi: Izinto zokufaka imibala zivame ukufakwa ku-mPP ukuze kufezwe imibala ethile kumkhiqizo wokugcina. Ama-Pigment namadayi akhethwa ngokusekelwe kumbala ofunwayo kanye nezidingo zokusetshenziswa.

Iziguquli Zomthelela:

Ama-Elastomer: Ezinhlelweni lapho ukumelana nomthelela kubaluleke kakhulu, ama-impact modifier afana nerabha ye-ethylene-propylene angangezwa ku-mPP. Lawa ma-modifer athuthukisa ukuqina kwe-polymer ngaphandle kokulahlekelwa ezinye izakhiwo.

Izinto ezihambisanayo:

Ama-Maleic Anhydride Grafts: Ama-Compatibilizers angasetshenziswa ukuthuthukisa ukuhambisana phakathi kwe-mPP namanye ama-polymer noma izithasiselo. Ama-Maleic anhydride grafts, isibonelo, angathuthukisa ukunamathelana phakathi kwezingxenye ezahlukene ze-polymer.

Ama-Slip kanye nama-Antiblock Ejenti:

Ama-Slip Ejenti: Ngaphezu kokunciphisa ukungqubuzana, ama-slip agent angasebenza njenge-anti-block agents. Ama-anti-block agents avimbela ukunamathelana kwefilimu noma izindawo zeshidi ngesikhathi sokugcina.

(Kubalulekile ukuqaphela ukuthi izithasiselo ezithile zokucubungula ezisetshenziswa ekwakhiweni kwe-mPP zingahluka ngokuya ngokusetshenziswa okuhlosiwe, izimo zokucubungula, kanye nezakhiwo zezinto ezifunwayo. Abakhiqizi bakhetha ngokucophelela lezi zithasiselo ukuze bafeze ukusebenza okuhle kakhulu kumkhiqizo wokugcina. Ukusetshenziswa kwama-catalyst e-metallocene ekukhiqizweni kwe-mPP kunikeza izinga elengeziwe lokulawula nokunemba, okuvumela ukufakwa kwezithasiselo ngendlela engalungiswa kahle ukuze kuhlangatshezwane nezidingo ezithile.)

Ukusebenza Kahle Kokuvula丨Izixazululo Ezintsha ze-mPP: Indima Yezithasiselo Zokucubungula Ezintsha, Lokho abakhiqizi be-mPP okudingeka bakwazi!

I-mPP ivele njenge-polymer eguqukayo, inikeza izakhiwo ezithuthukisiwe kanye nokusebenza okuthuthukisiwe ezinhlelweni ezahlukahlukene. Kodwa-ke, imfihlo ngemuva kwempumelelo yayo ayikho nje ezicini zayo ezingokwemvelo kodwa futhi nasekusetshenzisweni okunesu kwezithasiselo zokucubungula ezithuthukisiwe.

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

I-SILIMER 5091iyisengezo Sokucubungula i-Polymer Esingenayo i-Fluorine sokukhipha izinto ze-polypropylene nge-PP njengesithwali esiqalwe yi-SILIKE. Ingumkhiqizo we-polysiloxane masterbatch oguquliwe we-organic, ongathuthela emishinini yokucubungula futhi ube nomthelela ngesikhathi sokucubungula ngokusebenzisa umphumela omuhle kakhulu wokugcoba wokuqala we-polysiloxane kanye nomphumela we-polarity wamaqembu aguquliwe. Inani elincane lomthamo lingathuthukisa ngempumelelo ukugeleza kanye nokucutshungulwa, linciphise ukuvuza okufayo ngesikhathi sokukhipha, futhi lithuthukise isimo sesikhumba sikashaka, esisetshenziswa kabanzi ukuthuthukisa ukugcotshwa kanye nezici zobuso be-extrusion yepulasitiki.

NiniUsizo Lokucubungula I-Polymer Yamahhala ye-PFAS (PPA) SILIMER 5091ifakwa ku-metallocene polypropylene (mPP) matrix, ithuthukisa ukugeleza kokuncibilika kwe-mPP, inciphisa ukungqubuzana phakathi kwamaketanga e-polymer, futhi ivimbele ukunamathela ngesikhathi sokucubungula. Lokhu kusiza ukuthuthukisa izinqubo zokukhipha kanye nokubumba, kusiza izinqubo zokukhiqiza ezibushelelezi futhi kufake isandla ekusebenzeni kahle okuphelele.

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