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"Metallocene" e bolela metsoako ea tšebelisano ea tšepe e entsoeng ka tšepe ea phetoho (e kang zirconium, titanium, hafnium, joalo-joalo) le cyclopentadiene. Polypropylene e entsoeng ka metallocene catalyst e bitsoa metallocene polypropylene (mPP).

Lihlahisoa tsa Metallocene polypropylene (mPP) li na le phallo e phahameng, mocheso o phahameng, mokoallo o phahameng, ho hlaka le ho pepeseha ho ikhethang, monko o fokolang, le lisebelisoa tse ka sebelisoang ho Fibers, Cast Film, Molding Molding, Thermoforming, Medical, le Tse ling. Tlhahiso ea metallocene polypropylene (mPP) e kenyelletsa mehato e 'maloa ea bohlokoa, ho kenyelletsa ho hlophisoa ha catalyst, polymerization, le post-processing.

1. Tokiso ea Catalyst:

Khetho ea Metallocene Catalyst: Khetho ea metallocene catalyst e bohlokoa ho khetholla thepa ea sephetho sa mPP. Li-catalyst tsena hangata li kenyelletsa tšepe ea phetoho, joalo ka zirconium kapa titanium, e kentsoeng lipakeng tsa cyclopentadienyl ligands.

Keketso ea Cocatalyst: Li-catalyst tsa Metallocene li atisa ho sebelisoa hammoho le cocatalyst, hangata e leng motsoako oa aluminium. Cocatalyst e kenya tšebetsong metallocene catalyst, e e lumellang ho qala karabelo ea polymerization.

2. Polymerization:

Boitokisetso ba Feedstock: Propylene, monomer bakeng sa polypropylene, hangata e sebelisoa e le phepelo ea mantlha. Propylene e hloekisoa ho tlosa litšila tse ka sitisang mokhoa oa polymerization.

Setupo sa Reactor: Karabelo ea polymerization e etsahala ka har'a mochini o sebetsang tlas'a maemo a laoloang ka hloko. Setupo sa "reactor" se kenyelletsa metallocene catalyst, cocatalyst, le li-additives tse ling tse hlokahalang bakeng sa thepa ea polymer e lakatsehang.

Maemo a Polymerization: Maemo a karabelo, joalo ka mocheso, khatello, le nako ea ho lula, a laoloa ka hloko ho netefatsa boima ba limolek'hule le sebopeho sa polymer. Li-catalyst tsa Metallocene li nolofalletsa taolo e nepahetseng haholoanyane holim'a mekhahlelo ena ha e bapisoa le li-catalysts tsa setso.

3. Copolymerization (Boikhethelo):

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

4. Ho Felisoa le ho Felisoa:

Pheliso ea karabelo: Hang ha polymerization e felile, karabelo e felile. Hangata sena se finyelloa ka ho hlahisa moemeli oa ho felisa o sebetsanang le lipheletso tse sebetsang tsa polymer, ho emisa kholo e eketsehileng.

Ho tima: Polymer e ntan'o pholile ka potlako kapa ea tima ho thibela likarabelo tse ling le ho tiisa polymer.

5. Pholoso ea Polymer le Ka mor'a Ts'ebetso:

Karohano ea Polymer: Polymer e arohane le motsoako oa karabelo. Li-monomers tse sa sebetseng, masala a li-catalyst, le lihlahisoa tse ling li tlosoa ka mekhoa e fapaneng ea karohano.

Mehato ea Post-Processing: MPP e ka 'na ea feta mehato e meng ea ts'ebetso, e kang extrusion, compements, le pelletization, ho finyella sebopeho le thepa e lakatsehang. Mehato ena e boetse e lumella ho kenyelletsoa ha li-additives tse kang li-slip agents, li-antioxidants, stabilizers, nucleating agents, colorants le lisebelisoa tse ling tse sebetsang.

Ntlafatsa mPP: Ho Ikakhela ka Sebele ho Likarolo tsa Bohlokoa tsa Ts'ebetso ea Li-additives

Li-Slip Agents: Li-slip agents, tse kang li-amide tse mafura a nako e telele, li atisa ho kenngoa ho mPP ho fokotsa likhohlano pakeng tsa liketane tsa polymer, ho thibela ho khomarela nakong ea ts'ebetso. Sena se thusa ho ntlafatsa mekhoa ea extrusion le ho bopa.

Lintlafatso tsa Phallo:Lisebelisoa tsa phallo kapa lithuso tsa ho sebetsa, joalo ka boka ba polyethylene, li sebelisoa ho ntlafatsa phallo e qhibilihang ea mPP. Li-additives tsena li fokotsa viscosity le ho ntlafatsa bokhoni ba polymer ho tlatsa likheo tsa hlobo, e leng se bakang ts'ebetso e ntle.

Li-Antioxidants:

Li-stabilizers: Antioxidants ke li-additives tsa bohlokoa tse sireletsang mPP ho senyeha nakong ea ts'ebetso. Li-phenols tse thibetsoeng le li-phosphite li atisa ho sebelisoa li-stabilizers tse thibelang ho thehoa ha li-radicals tsa mahala, ho thibela ho senyeha ha mocheso le oxidative.

Liemeli tsa Nucleating:

Li-nucleating agents, tse kang talc kapa metsoako e meng ea inorganic, li kenyelletsoa ho khothalletsa ho thehoa ha sebopeho sa kristale se laetsoeng haholoanyane ho mPP. Li-additives tsena li ntlafatsa thepa ea mochini oa polymer, ho kenyelletsa le ho satalla le ho hanyetsa phello.

Mebala:

Li-pigments le Dyes: Li-colorants li atisa ho kenngoa ho mPP ho finyella mebala e khethehileng sehlahisoa sa ho qetela. Li-pigments le dae li khethoa ho latela 'mala o lakatsehang le litlhoko tsa kopo.

Li-Impact Modifiers:

Li-Elastomers: Lits'ebetsong tseo ho hanyetsanang le tšusumetso ho leng bohlokoa ho tsona, li-modifiers tse kang ethylene-propylene rabara li ka kenyelletsoa ho mPP. Liphetoho tsena li ntlafatsa ho tiea ha polymer ntle le ho tela thepa e 'ngoe.

Li-Compatibilizers:

Maleic Anhydride Grafts: Li-Compatibilizer li ka sebelisoa ho ntlafatsa tšebelisano lipakeng tsa mPP le li-polymers tse ling kapa li-additives. Ka mohlala, li-graft tsa Maleic anhydride li ka ntlafatsa ho khomarela pakeng tsa likarolo tse fapaneng tsa polymer.

Lisebelisoa tsa Slip le Antiblock:

Li-Slip Agents: Ntle le ho fokotsa likhohlano, li-slip agents li ka sebetsa joalo ka li-anti-block agents. Li-antiblock agents li thibela ho khomarelana ha filimi kapa maqephe a maqephe nakong ea polokelo.

(Ho bohlokoa ho ela hloko hore li-additives tse ikhethileng tse sebelisoang tlhahisong ea mPP li ka fapana ho latela ts'ebeliso e reriloeng, maemo a ts'ebetso, le thepa e lakatsehang. Baetsi ba khetha li-additives tsena ka hloko ho fihlela ts'ebetso e nepahetseng sehlahisoa sa ho qetela. Ts'ebeliso ea li-catalyst tsa metallocene tlhahiso ea mPP e fana ka boemo bo eketsehileng ba taolo le ho nepahala, ho lumella ho kenngoa ha li-additives ka tsela e ka hlophisoang hantle ho finyella litlhoko tse itseng.)

Ho notlolla Bokhabane丨Litharollo tse Ncha bakeng sa mPP: Karolo ea Li-additives tsa Novel Processing, Seo baetsi ba mPP ba lokelang ho se tseba!

mPP e hlahile e le polymer ea phetoho, e fanang ka thepa e ntlafalitsoeng le ts'ebetso e ntlafalitsoeng lits'ebetsong tse fapaneng. Leha ho le joalo, lekunutu la katleho ea eona ha lea itšetleha feela ka litšobotsi tsa eona tsa tlhaho empa hape le ts'ebelisong ea leano ea li-additives tse tsoetseng pele.

SILIMER 5091e hlahisa mokhoa o mocha oa ho phahamisa ts'ebetso ea metallocene polypropylene, e fanang ka mokhoa o qobellang ho li-additives tsa setso tsa PPA, le tharollo ea ho felisa li-additives tse thehiloeng ho fluorine tlas'a lithibelo tsa PFAS.

SILIMER 5091ke Fluorine-Free Polymer Processing Additive bakeng sa extrusion ea thepa ea polypropylene e nang le PP joalo ka sejari se qalileng ke SILIKE. Ke sehlahisoa sa polysiloxane masterbatch se fetotsoeng, se ka fallelang lisebelisoa tsa ts'ebetso 'me sa ba le phello nakong ea ts'ebetso ka ho nka monyetla ka phello e ntle ea pele ea lubrication ea polysiloxane le phello ea polarity ea lihlopha tse fetotsoeng. Tekanyo e nyane ea litekanyetso e ka ntlafatsa ka mokhoa o nepahetseng ho phalla ha metsi le ts'ebetso, ho fokotsa lefu la drool nakong ea extrusion, le ho ntlafatsa ts'ebetso ea letlalo la shaka, e sebelisoang haholo ho ntlafatsa lubrication le litšobotsi tsa holim'a polasetiki extrusion.

NengPFAS-Free Polymer Processing Aid(PPA) SILIMER 5091e kenyelelitsoe ka har'a matrix ea metallocene polypropylene (mPP), e ntlafatsa ho phalla ha mPP, e fokotsa likhohlano pakeng tsa liketane tsa polymer, le ho thibela ho khomarela nakong ea ts'ebetso. Sena se thusa ho ntlafatsa mekhoa ea extrusion le ho bopa. ho nolofatsa mekhoa ea tlhahiso e bonolo le ho kenya letsoho katlehong e akaretsang.

Lahla lisebelisoa tsa hau tsa khale tsa ho sebetsa,SILIKE Fluorine ea mahala PPA SILIMER 5091ke seo u se hlokang!