Litaba

“Metallocene” e bolela metsoako ea tšebelisano ea tšepe ea tlhaho e entsoeng ke litšepe tsa phetoho (tse kang zirconium, titanium, hafnium, jj.) le cyclopentadiene. Polypropylene e kopantsoeng le li-catalyst tsa metallocene e bitsoa metallocene polypropylene (mPP).

Lihlahisoa tsa Metallocene polypropylene (mPP) li na le phallo e phahameng, mocheso o phahameng, thibelo e phahameng, Ho hlaka le ho ba pepeneneng ho ikhethang, monko o tlase, le ts'ebeliso e ka bang teng ho Lifaeba, Filimi ea Cast, Ho Injection Molding, Thermoforming, Bongaka le Tse Ling. Tlhahiso ea metallocene polypropylene (mPP) e kenyelletsa mehato e 'maloa ea bohlokoa, ho kenyeletsoa le ho lokisa catalyst, polymerization, le kamora ts'ebetso.

1. Tokisetso ea Catalyst:

Kgetho ya Metallocene Catalyst: Kgetho ya metallocene catalyst e bohlokwa haholo ho fumaneng thepa ya mPP e hlahang. Hangata di-catalyst tsena di kenyelletsa dimethale tsa phetoho, tse kang zirconium kapa titanium, tse kopaneng pakeng tsa di-cyclopentadienyl ligands.

Ho Eketsa Cocatalyst: Li-catalyst tsa Metallocene hangata li sebelisoa hammoho le cocatalyst, eo hangata e leng motsoako o thehiloeng ho aluminium. Cocatalyst e kenya tšebetsong catalyst ea metallocene, e e lumellang ho qala karabelo ea polymerization.

2. Ho etsa hore e be polymer:

Tokisetso ea Phepo: Propylene, monomer ea polypropylene, hangata e sebelisoa e le phepo ea mantlha. Propylene e hloekisoa ho tlosa litšila tse ka sitisang ts'ebetso ea polymerization.

Setup sa Reactor: Karabelo ea polymerization e etsahala ka har'a reactor tlas'a maemo a laoloang ka hloko. Setup sa reactor se kenyelletsa metallocene catalyst, cocatalyst, le lisebelisoa tse ling tse hlokahalang bakeng sa thepa ea polymer e lakatsehang.

Maemo a ho Fokotsa: Maemo a karabelo, a kang mocheso, kgatello le nako ya ho dula, a laolwa ka hloko ho netefatsa boima ba dimolek'hule le sebopeho sa polymer se lakatsehang. Di-catalyst tsa Metallocene di nolofalletsa taolo e nepahetseng haholoanyane hodima diparamente tsena ha di bapiswa le di-catalyst tsa setso.

3. Copolymerization (Ha ho hlokahale):

Ho Kenyelletsoa ha Li-Co-monomer: Maemong a mang, mPP e ka 'na ea kopanngoa le li-monomer tse ling ho fetola thepa ea eona. Li-co-monomer tse tloaelehileng li kenyelletsa ethylene kapa li-alpha-olefin tse ling. Ho kenyelletsoa ha li-co-monomer ho lumella ho fetoloa ha polymer bakeng sa lits'ebetso tse itseng.

4. Ho Fela le ho Timola:

Ho Fela ha Karabelo: Hang ha polymerization e phethehile, karabelo e a fediswa. Hangata sena se fihlellwa ka ho hlahisa moemeli wa ho fedisa ya arabelang le dipheletso tsa ketane ya polymer e sebetsang, e emisa kgolo e eketsehileng.

Ho tima: Polima e ntoo phodiswa kapa e tingwa ka potlako ho thibela dikarabelo tse ding le ho tiisa polima.

5. Ho Hlaphoheloa ha Polymer le ho Sebetsa ha eona Kamora ho E Sebelisa:

Karohano ea Polymer: Polymer e arotsoe ho motsoako oa karabelo. Li-monomer tse sa arajoang, masala a catalyst, le lihlahisoa tse ling tse ling li tlosoa ka mekhoa e fapaneng ea karohano.

Mehato ea Kamora ho Sebetsa: MPP e ka feta mehatong e meng ea ts'ebetso, joalo ka ho ntša, ho kopanya le ho pelletization, ho fihlela sebopeho le thepa e lakatsehang. Mehato ena e boetse e lumella ho kenyelletsoa ha lintho tse eketsang tse kang li-slip agents, li-antioxidants, li-stabilizers, li-nucleating agents, li-colorants le lintho tse ling tse eketsang ts'ebetso.

Ho ntlafatsa mPP: Ho Ithuta ka Botebo Mesebetsi ea Bohlokoa ea ho Sebelisa Lisebelisoa

Baemeli ba Slip: Li-slip agents, tse kang li-amides tse nang le ketane e telele, hangata li eketsoa ho mPP ho fokotsa khohlano lipakeng tsa liketane tsa polymer, ho thibela ho khomarela nakong ea ts'ebetso. Sena se thusa ho ntlafatsa lits'ebetso tsa ho ntša le ho bopa.

Lisebelisoa tsa ho Phalla:Lisebelisoa tse matlafatsang phallo kapa lithuso tsa ts'ebetso, joalo ka boka ba polyethylene, li sebelisoa ho ntlafatsa phallo ea mPP e qhibilihang. Lisebelisoa tsena li fokotsa ho teteana le ho ntlafatsa bokhoni ba polymer ba ho tlatsa likoti tsa hlobo, e leng se fellang ka ho sebetsa hantle.

Li-antioxidants:

Li-stabilizer: Li-antioxidant ke lintho tse ling tsa bohlokoa tse sireletsang mPP ho senyeheng ha ho sebetsoa. ​​Li-phenol tse sitisoang le li-phosphite ke lintho tse atisang ho sebelisoa tse thibelang ho thehoa ha li-free radical, tse thibelang ho senyeha ha mocheso le oxidative.

Lisebelisoa tsa Nucleating:

Di-nucleating agents, tse kang talc kapa metsoako e meng e sa pheleng, di eketswa ho kgothaletsa ho thehwa ha sebopeho sa kristale se hlophisehileng haholoanyane ho mPP. Di-additives tsena di ntlafatsa thepa ya polymer ya mechini, ho kenyeletswa ho tiya le ho hanyetsa tshusumetso.

Ditlolo tsa mebala:

Dibala le Didae: Dibala tse atisang ho kenngwa ka hara mPP ho fihlella mebala e itseng sehlahisweng sa ho qetela. Dibala le didae di kgethwa ho latela ditlhoko tsa mmala le tshebediso tse lakatsehang.

Liphetolo tsa Tšusumetso:

Li-Elastomer: Litšebelisong moo khanyetso ea tšusumetso e leng ea bohlokoa, li-modifiers tsa tšusumetso tse kang rabara ea ethylene-propylene li ka eketsoa ho mPP. Li-modifiers tsena li ntlafatsa ho tiea ha polymer ntle le ho senya thepa e 'ngoe.

Lintho tse lumellanang:

Di-Graft tsa Maleic Anhydride: Di-compatibilizer di ka sebediswa ho ntlafatsa ho tsamaellana pakeng tsa mPP le di-polymer tse ding kapa di-additives. Di-graft tsa Maleic anhydride, mohlala, di ka ntlafatsa kgomarelo pakeng tsa dikarolo tse fapaneng tsa polymer.

Li-Slip le Li-antiblock Agents:

Disebediswa tsa ho Thelela: Ntle le ho fokotsa kgohlano, disebediswa tsa ho thelela di ka boela tsa sebetsa e le disebediswa tsa ho thibela dithibelo. Disebediswa tsa ho thibela dithibelo di thibela ho kgomarelana ha bokahodimo ba filimi kapa lakane nakong ya polokelo.

(Ho bohlokoa ho hlokomela hore li-additives tse ikhethileng tse sebelisoang ho foromong ea mPP li ka fapana ho latela ts'ebeliso e reriloeng, maemo a ts'ebetso, le thepa e lakatsehang ea thepa. Bahlahisi ba khetha li-additives tsena ka hloko ho fihlela ts'ebetso e ntle sehlahisoa sa ho qetela. Tšebeliso ea li-catalyst tsa metallocene tlhahisong ea mPP e fana ka boemo bo eketsehileng ba taolo le ho nepahala, ho lumella ho kenyelletsoa ha li-additives ka tsela e ka lokisoang hantle ho fihlela litlhoko tse itseng.)

Bokgoni ba ho Notlolla丨Litharollo tse Ncha bakeng sa mPP: Karolo ea Lisebelisoa tse Ncha tsa ho Sebelisa Lisebelisoa, Seo baetsi ba mPP ba hlokang ho se tseba!

mPP e hlahile e le polymer e nchafatsang, e fanang ka thepa e ntlafalitsoeng le ts'ebetso e ntlafetseng lits'ebetsong tse fapaneng. Leha ho le joalo, sephiri sa katleho ea eona ha se feela litšobotsing tsa eona tsa tlhaho empa hape le ts'ebelisong ea maano ea lisebelisoa tse tsoetseng pele tsa ts'ebetso.

SILIMER 5091e hlahisa mokhoa o mocha oa ho phahamisa bokhoni ba ho sebetsa ba polypropylene ea metallocene, e fana ka mokhoa o mong o khahlisang ho feta litlatsetso tsa setso tsa PPA, le litharollo tsa ho felisa litlatsetso tse thehiloeng ho fluorine tlas'a lithibelo tsa PFAS.

SILIMER 5091ke Sesebelisoa sa ho Sebetsa sa Polymer se se Nang Fluorine bakeng sa ho ntsha thepa ya polypropylene ka PP e le mojari o qadileng ke SILIKE. Ke sehlahisoa sa polysiloxane masterbatch se fetotsweng ka tlhaho, se ka fallelang disebedisweng tsa ho sebetsa mme sa ba le phello nakong ya ho sebetsa ka ho nka monyetla ka phello e ntle ya pele ya ho tlotsa ya polysiloxane le phello ya polarity ya dihlopha tse fetotsweng. Tekanyo e nyane e ka ntlafatsa ho phalla le ho kgona ho sebetsa ka katleho, ya fokotsa ho tsholoha ha metsi nakong ya ho ntsha, mme ya ntlafatsa ketsahalo ya letlalo la shaka, e sebediswang haholo ho ntlafatsa ho tlotsa le dibopeho tsa bokahodimo ba ho ntsha polasetiki.

NengThuso ea ho Sebetsa ka Polymer e sa Lefelloeng ke PFAS (PPA) SILIMER 5091e kenyellelitsoe ka har'a metallocene polypropylene (mPP) matrix, e ntlafatsa phallo ea ho qhibiliha ha mPP, e fokotsa khohlano lipakeng tsa liketane tsa polymer, 'me e thibela ho khomarela nakong ea ts'ebetso. Sena se thusa ho ntlafatsa lits'ebetso tsa ho ntša le ho bopa, ho nolofalletsa lits'ebetso tsa tlhahiso tse boreleli le ho kenya letsoho katlehong e akaretsang.

Lahla sesebelisoa sa hau sa khale sa ho sebetsana le lintho tse ling,SILIKE Fluorine ea mahala PPA SILIMER 5091ke seo o se hlokang!