Akụkọ

"Metallocene" na-ezo aka na ngwakọta nhazi nhazi nke organic na-emepụta site na ngbanwe ọla (dị ka zirconium, titanium, hafnium, wdg) na cyclopentadiene. A na-akpọ polypropylene nke ejiri metallocene eme ihe na-emepụta metallocene polypropylene (mPP).

Ngwaahịa Metallocene polypropylene (mPP) nwere oke eruba, okpomọkụ dị elu, ihe mgbochi dị elu, nkọwa doro anya na nghọta, obere isi, na ngwa nwere ike na Fibers, Ihe nkiri Cast, Injection Molding, Thermoforming, Medical, na ndị ọzọ. Mmepụta nke metallocene polypropylene (mPP) gụnyere ọtụtụ usoro dị mkpa, gụnyere nkwadebe ihe ike, polymerization, na nhazi nhazi.

1. Nkwadebe ihe na-akpata:

Nhọrọ nke Metallocene Catalyst: Nhọrọ nke metallocene catalyst dị oke mkpa n'ịchọpụta njirimara nke mPP na-esi na ya pụta. Ihe ndị a na-akpali akpali na-agụnyekarị ọla mgbanwe, dị ka zirconium ma ọ bụ titanium, sandwiched n'etiti cyclopentadienyl ligands.

Mgbakwunye Cocatalyst: Metallocene catalysts na-ejikarị ya na cocatalyst, na-abụkarị ihe aluminom dabeere na ya. Cocatalyst na-eme ka metallocene catalyst rụọ ọrụ, na-enye ya ohere ịmalite mmeghachi omume polymerization.

2. Polymerization:

Nkwadebe nri: A na-ejikarị propylene, monomer maka polypropylene, dịka nri nri bụ isi. A na-asachapụ propylene iji wepụ adịghị ọcha nke nwere ike igbochi usoro polymerization.

Ntọala Reactor: Mmeghachi omume polymerization na-ewere ọnọdụ na reactor n'okpuru ọnọdụ ejiri nlezianya chịkwaa. Ntọala reactor na-agụnye ihe na-eme ka metallocene, cocatalyst, na ihe mgbakwunye ndị ọzọ achọrọ maka akụrụngwa polymer achọrọ.

Ọnọdụ Polymerization: A na-ejikwa nlezianya na-achịkwa ọnọdụ mmeghachi omume, dị ka okpomọkụ, nrụgide, na oge obibi iji hụ na ịdị arọ molekụla chọrọ na nhazi polymer. Ihe na-eme ka Metallocene na-eme ka njikwa ziri ezi karịa ihe ndị a ma e jiri ya tụnyere ihe mkpata ọdịnala.

3. Copolymerization (Nhọrọ):

Njikọta nke Co-monomers: N'ọnọdụ ụfọdụ, enwere ike ijikọta mPP na monomer ndị ọzọ iji gbanwee akụrụngwa ya. Ndị na-emekọ ihe ọnụ na-agụnye ethylene ma ọ bụ alfa-olefin ndị ọzọ. Ntinye nke co-monomers na-enye ohere maka nhazi nke polymer maka ngwa ngwa.

4. Nkwụsị na ịkwụsị:

Nkwụsị mmeghachi omume: Ozugbo polymerization zuru ezu, a ga-akwụsị mmeghachi omume ahụ. A na-enwetakarị nke a site n'iwebata onye ọrụ nkwụsị nke na-emeghachi omume na njedebe polymer na-arụ ọrụ, na-akwụsị ọganihu ọzọ.

Quenching: A na-emezi polymer ngwa ngwa dị jụụ ma ọ bụ menyụọ iji gbochie mmeghachi omume ọzọ na iji mee ka polymer sie ike.

5. Polymer Iweghachite na Post-Nhazi:

Nkewa nke polymer: A na-ekewa polymer na ngwakọta mmeghachi omume. A na-ewepụ monomers na-enweghị mmeghachi omume, ihe ndị na-emepụta ihe, na ngwaahịa ndị ọzọ site na usoro nkewa dị iche iche.

Usoro nhazi mgbe emechara: mPP nwere ike ịnweta usoro nhazi ndị ọzọ, dị ka extrusion, ịgbakọta, na pelletization, iji nweta ụdị na akụrụngwa achọrọ. Usoro ndị a na-enyekwa ohere maka ntinye nke ihe mgbakwunye dị ka ndị na-amị amị, antioxidants, stabilizers, nucleating agents, colorants, na ndị ọzọ nhazi ihe mgbakwunye.

Na-ebuli mPP: Mmikpu miri emi n'ime isi ọrụ nke nhazi ihe mgbakwunye

Ndị nnọchi anya Slip: A na-agbakwunye ndị na-amị amị, dị ka fatty amides ogologo ogologo, na mPP iji belata esemokwu n'etiti ụdọ polymer, na-egbochi ịrapara n'oge nhazi. Nke a na-enyere aka melite extrusion na ịkpụzi usoro.

Ndị na-emewanye mmiri:A na-eji ndị na-ebuwanye ibu ma ọ bụ ihe enyemaka nhazi, dị ka polyethylene waxes, iji kwalite mgbaze nke mPP. Ihe mgbakwunye ndị a na-ebelata viscosity ma welie ikike polymer iji mejupụta oghere ebu, na-eme ka nrụpụta ka mma.

Antioxidants:

Stabilizers: Antioxidants bụ ihe mgbakwunye dị mkpa na-echebe mPP site na mmebi n'oge nhazi. A na-ejikarị phenols na phosphites emechibidoro ihe ndị na-eme ka ahụ sie ike na-egbochi mmepụta nke radicals efu, na-egbochi mmebi okpomọkụ na oxidative.

Ndị nnọchite anya nuklia:

A na-agbakwunye ihe ndị na-emepụta ihe na-emepụta ihe, dị ka talc ma ọ bụ ogige inorganic ndị ọzọ, iji kwalite nhazi nke usoro kristal a kwadoro na mPP. Ihe mgbakwunye ndị a na-eme ka akụrụngwa nke polymer na-arụ ọrụ, gụnyere isi ike na nguzogide mmetụta.

Agba:

Pigments na Dyes: A na-etinyekarị agba agba na mPP iji nweta ụdị agba na ngwaahịa ikpeazụ. A na-ahọrọ pigmenti na agba agba dabere na agba achọrọ na ngwa chọrọ.

Ndị na-agbanwe mmetụta:

Elastomers: N'ime ngwa ebe nguzogide mmetụta dị oke mkpa, enwere ike ịgbakwunye ihe mgbanwe mmetụta dịka ethylene-propylene roba na mPP. Ndị na-eme mgbanwe ndị a na-eme ka ike nke polymer dịkwuo mma na-enweghị ịchụ àjà ndị ọzọ.

Ihe ndakọrịta:

Grafts Anhydride Maleic: Enwere ike iji ihe ndakọrịta iji kwalite ndakọrịta n'etiti mPP na polymers ndị ọzọ ma ọ bụ mgbakwunye. Ihe atụ nke anhydride maleic nwere ike ime ka adhesion dị n'etiti ihe ndị dị iche iche polymer.

Ndị nnọchi anya Slip na Antiblock:

Agents Slip: Na mgbakwunye na ibelata esemokwu, ndị na-amị amị nwekwara ike rụọ ọrụ dị ka ihe mgbochi mgbochi. Ihe mgbochi mgbochi na-egbochi ịrapara ọnụ nke ihe nkiri ma ọ bụ mpempe akwụkwọ n'oge nchekwa.

(Ọ dị mkpa iburu n'obi na ihe mgbakwunye nhazi a kapịrị ọnụ eji na mPP nhazi nwere ike ịdịgasị iche dabere na ngwa a chọrọ, ọnọdụ nhazi, na ihe onwunwe achọrọ. mmepụta nke mPP na-enye ọkwa nchịkwa na nhazi nke ọma, na-enye ohere maka ntinye nke mgbakwunye n'ụzọ enwere ike ịhazi ya nke ọma iji mezuo ihe achọrọ.)

Ịkpọghe arụmọrụ丨Ngwọta ohuru maka mPP: Ọrụ nke ihe mgbakwunye nhazi akwụkwọ ọhụrụ, Kedu ihe ndị na-emepụta mPP kwesịrị ịma!

mPP apụtala dị ka polima na-agbanwe agbanwe, na-enye akụrụngwa emelitere yana arụmọrụ ka mma na ngwa dị iche iche. Otú ọ dị, ihe nzuzo dị n'azụ ihe ịga nke ọma ya abụghị nanị na njirimara ndị e bu pụta ụwa kamakwa n'iji usoro nhazi nke ihe mgbakwunye nhazi dị elu.

SILIMER 5091na-ewebata ụzọ ọhụrụ iji bulie ikike nke metallocene polypropylene dị elu, na-enye ihe ọzọ na-akpali akpali na mgbakwunye PPA ọdịnala, yana ngwọta iji kpochapụ ihe mgbakwunye ndị dabeere na fluorine n'okpuru mgbochi PFAS.

SILIMER 5091bụ ihe mgbakwunye na-arụ ọrụ Polymer na-enweghị Fluorine maka mkpochapụ nke ihe polypropylene na PP dị ka onye na-ebu SILIKE bidoro. Ọ bụ ngwaahịa polysiloxane masterbatch nke organic gbanwetụrụ, nke nwere ike ịkwaga na akụrụngwa nhazi ma nwee mmetụta n'oge nhazi site na iji ezigbo mmanye mmanye mbụ nke polysiloxane na mmetụta polarity nke otu ndị gbanwere. A obere ego nke onunu ogwu nwere ike n'ụzọ dị irè melite fluidity na processability, belata anwụ drool n'oge extrusion, na melite onu shark akpụkpọ, ọtụtụ ebe iji melite lubrication na elu e ji mara nke plastic extrusion.

Mgbe olePFAS - Enyemaka Polymer na-akwụghị ụgwọ (PPA) SILIMER 5091etinyere ya na metallocene polypropylene (mPP), ọ na-eme ka mgbaze nke mPP dịkwuo mma, na-ebelata esemokwu n'etiti ụdọ polymer, ma gbochie ịrapara n'oge nhazi. Nke a na-enyere aka melite extrusion na ịkpụzi usoro. na-eme ka usoro mmepụta ihe dị nro dị nro ma na-enye aka na arụmọrụ zuru oke.

Tufuo ihe mgbakwunye nhazi ochie gị,SILIKE Fluorine na-enweghị PPA SILIMER 5091bụ ihe ị chọrọ!