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"Metallocene" inoreva organic metal coordination compounds inoumbwa nekuchinja kwesimbi (sezirconium, titanium, hafnium, nezvimwewo) uye cyclopentadiene. Polypropylene yakagadzirwa ne metallocene catalysts inonzi metallocene polypropylene (mPP).

Metallocene polypropylene (mPP) zvigadzirwa zvine Kuyerera kwepamusoro, kupisa kwakanyanya, chipingamupinyi chepamusoro, Kujeka kwakasiyana uye Kujeka, kunhuhwirira kwakaderera, uye zvinogona kushandiswa muFibers, Cast Film, Injection Molding, Thermoforming, Medical, uye Vamwe. Kugadzirwa kwemetallocene polypropylene (mPP) kunosanganisira akati wandei matanho akakosha, anosanganisira catalyst kugadzirira, polymerization, uye post-kugadzirisa.

1. Kugadzirira kweCatalyst:

Kusarudzwa kweMetallocene Catalyst: Sarudzo yemetallocene catalyst yakakosha pakusarudza zvivakwa zveiyo mPP inoguma. Izvi zvinokonzeresa zvinowanzo sanganisira shanduko yesimbi, senge zirconium kana titanium, inoiswa pakati pe cyclopentadienyl ligands.

Cocatalyst Kuwedzera: Metallocene catalysts inowanzoshandiswa pamwe chete necocatalyst, kazhinji inonzi aluminium-based compound. Iyo cocatalyst inomisa iyo metallocene catalyst, ichiibvumira kuti itange iyo polymerization reaction.

2. Polymerization:

Feedstock Kugadzirira: Propylene, iyo monomer ye polypropylene, inowanzo shandiswa seyekutanga feedstock. Iyo propylene inonatswa kubvisa tsvina inogona kukanganisa maitiro epolymerization.

Reactor Setup: Iyo polymerization reaction inoitika mureactor pasi pemamiriro akanyatso kudzora. Iyo reactor setup inosanganisira iyo metallocene catalyst, cocatalyst, uye zvimwe zvinowedzera zvinodiwa kune inodiwa polymer zvivakwa.

Polymerization Mamiriro: Mamiriro ekuita, senge tembiricha, kudzvanywa, uye nguva yekugara, inodzorwa nekuchenjera kuti ive nechokwadi cheinodiwa mamorekuru uye chimiro chepolymer. Metallocene catalysts inogonesa kutonga kwakaringana pamusoro peaya ma paramita zvichienzaniswa neaya echinyakare catalysts.

3. Copolymerization (Zvichida):

Kubatanidzwa kweCo-monomers: Mune zvimwe zviitiko, mPP inogona kubatanidzwa nemamwe mamonomers kuti igadzirise zvimiro zvayo. Kazhinji co-monomers anosanganisira ethylene kana mamwe alpha-olefins. Iko kubatanidzwa kwe-co-monomers kunobvumira kugadziridzwa kwepolymer kune chaiyo maapplication.

4. Kugumisa uye Kudzima:

Reaction Kuguma: Kana iyo polymerization yapera, maitiro anogumiswa. Izvi zvinowanzo wanikwa nekuunza yekumisa mumiriri inobata neino shanda polymer cheni inopera, ichimisa kuwedzera kukura.

Kudzima: Iyo polima inobva yakurumidza kutonhodzwa kana kudzimwa kudzivirira kumwe kuita uye kuomesa polima.

5. Polymer Kudzoreredza uye Kumashure-Kugadziridza:

Kuparadzaniswa kwePolymer: Iyo polymer inoparadzaniswa kubva musanganiswa wekuita. Unreacted monomers, catalyst residues, uye zvimwe ne-zvigadzirwa zvinobviswa kuburikidza neakasiyana nzira dzekuparadzanisa.

Post-Processing Matanho: Iyo mPP inogona kuita mamwe matanho ekugadzirisa, senge extrusion, kusanganisa, uye pelletization, kuti uwane iyo yaunoda fomu uye zvivakwa. Matanho aya anobvumirawo kubatanidzwa kwezvinowedzera senge slip agents, antioxidants, stabilizers, nucleating agents, colorants, uye zvimwe zvekuwedzera zvekugadzirisa.

Kunatsiridza mPP: Kunyura Kwakadzika muMatanho Akakosha eKugadzira Zvinowedzerwa

Slip Agents: Slip agents, senge refu-chain mafuta amides, anowanzowedzerwa kune mPP kuderedza kupesana pakati pemaketani epolymer, kudzivirira kunamatira panguva yekugadzirisa. Izvi zvinobatsira kuvandudza extrusion uye molding maitiro.

Kuyerera kweEnhancers:Kuyerera kwekusimudzira kana kugadzirisa zvinobatsira, senge polyethylene waxes, inoshandiswa kugadzirisa kunyunguduka kuyerera kwemPP. Izvi zvinowedzera zvinoderedza viscosity uye kuwedzera kugona kwepolymer kuzadza mold cavities, zvichikonzera kuita zvirinani.

Antioxidants:

Stabilizers: Antioxidants zvakakosha zvinowedzera zvinodzivirira mPP kubva mukuora panguva yekugadziriswa. Hindered phenols uye phosphites inowanzoshandiswa stabilizers inodzivisa kuumbwa kwemahara radicals, kudzivirira kupisa uye oxidative degradation.

Nucleating Agents:

Nucleating agents, senge talc kana mamwe inorganic compounds, anowedzerwa kukurudzira kuumbwa kweimwe yakarongedzerwa crystalline chimiro mu mPP. Izvi zvinowedzera zvinowedzera iyo polymer's mechanic properties, kusanganisira kuomarara uye kukanganisa kuramba.

Colorants:

Pigment uye Dyes: Mavara anowanzo kuverengerwa muMP kuti awane chaiwo mavara muchigadzirwa chekupedzisira. Pigment uye dhayi zvinosarudzwa zvichienderana nerudzi rwaunoda uye zvinodiwa zvekushandisa.

Impact Modifiers:

Elastomers: Mumashandisirwo apo kukanganisa kupikisa kwakakosha, zvinogadzirisa zvinogadzirisa senge ethylene-propylene rabha zvinogona kuwedzerwa kune mPP. Aya magadzirirwo anovandudza kuoma kwepolymer pasina kupira zvimwe zvivakwa.

Compatibilizers:

Maleic Anhydride Grafts: Compatibilizers inogona kushandiswa kuvandudza kuenderana pakati pemPP nemamwe mapolymers kana additives. Maleic anhydride grafts, semuenzaniso, anogona kusimudzira kunamatira pakati pezvakasiyana polymer zvikamu.

Slip uye Antiblock Agents:

Slip Agents: Pamusoro pekudzikisa kupokana, slip agents anogonawo kuita seanorwisa-block agents. Antiblock agents anodzivirira kunamatira pamwe chete kwefirimu kana mapepa epamusoro panguva yekuchengetedza.

(Zvakakosha kuziva kuti iwo chaiwo magadzirirwo ekuwedzera anoshandiswa mukuumbwa kwemPP anogona kusiyana zvichienderana nekwakange uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchichicho, mamiriro ekugadzirisa, uye zvinhu zvinodikanwa zvezvinhu. Vagadziri vanonyatso sarudza izvi zvinowedzera kuti vakwanise kuita zvakakwana muchigadzirwa chekupedzisira. Kushandiswa kwemetallocene catalysts mu kugadzirwa kwemPP kunopa imwe nhanho yekutonga uye nemazvo, zvichibvumira kuiswa kwezvinowedzera nenzira inogona kunyatsogadziriswa kuti isangane nezvinodiwa.)

Kuzarura Kubudirira丨Innovative Solutions dzemPP: Basa reNovel Processing Additives, Chii vanogadzira mPP vanofanirwa kuziva!

mPP yakabuda sechimurenga chepolymer, ichipa yakakwidziridzwa zvivakwa uye yakagadziridzwa mashandiro mumashandisirwo akasiyana. Nekudaro, chakavanzika kuseri kwekubudirira kwayo hachingori muhunhu hwayo chete asiwo muhungwaru hwekushandisa kwepamberi kugadzirisa zvinowedzera.

SILIMER 5091inotangisa nzira itsva yekusimudza kufambiswa kwemetallocene polypropylene, ichipa imwe nzira inomanikidza kune yechinyakare PPA additives, uye mhinduro dzekubvisa fluorine-based additives pasi pePFAS zvinomanikidza.

SILIMER 5091ndeyeFluorine-Yemahara Polymer Processing Yekuwedzera yekuwedzera kwe polypropylene zvinhu nePP semutakuri wakatangwa neSILIKE. Iyo organic yakagadziridzwa polysiloxane masterbatch chigadzirwa, inogona kutamira kune yekugadziridza michina uye kuita mhedzisiro panguva yekugadziriswa nekutora mukana weyakanakisa yekutanga lubrication maitiro epolysiloxane uye polarity mhedzisiro yemapoka akagadziridzwa. Huwandu hudiki hwedosi hunogona kunyatso kuvandudza fluidity uye processability, kuderedza kufa drool panguva yeextrusion, uye kunatsiridza chiitiko cheganda re shark, rinoshandiswa zvakanyanya kuvandudza lubrication uye hunhu hwepamusoro hwepurasitiki extrusion.

RiniPFAS-Yemahara Polymer Processing Aid (PPA) SILIMER 5091inosanganisirwa mumetallocene polypropylene (mPP) matrix, inovandudza kunyunguduka kwemPP, inoderedza kupokana pakati pemaketani epolymer, uye inodzivirira kunamatira panguva yekugadziriswa. Izvi zvinobatsira kuvandudza extrusion uye molding maitiro. kufambisa nzira dzakapfava dzekugadzira uye nekubatsira mukubudirira kwese.

Rasa chako chekare chekuwedzera chekuwedzera,SILIKE Fluorine-isina PPA SILIMER 5091ndizvo zvaunoda!