"Metallocene" e fa'atatau i le fa'amaopoopo fa'amaopoopo o u'amea fa'aola e fausia e u'amea fa'aliliu (e pei o le zirconium, titanium, hafnium, ma isi) ma le cyclopentadiene. O le polypropylene e fa'apipi'iina i mea fa'ameamea e ta'ua o le metallocene polypropylene (mPP).
Metallocene polypropylene (mPP) oloa e maua ai le tafe sili atu, maualuga le vevela, maualuga le pa puipui, tulaga ese le manino ma le manino, maualalo le manogi, ma faʻaoga talafeagai i Fibers, Cast Film, Injection Molding, Thermoforming, Medical, ma isi. O le gaosiga o le metallocene polypropylene (mPP) e aofia ai le tele o laasaga autu, e aofia ai le tapenaina o le catalyst, polymerization, ma le post-processing.
1. Sauniuniga Catalyst:
Filifiliga o le Metallocene Catalyst: O le filifiliga o le metallocene catalyst e taua tele i le fuafuaina o meatotino o le mPP e maua. O nei fa'aupuga e masani lava ona aofia ai metala fesuia'i, e pei o le zirconium po'o le titanium, fa'apipi'i i le va o ligands cyclopentadienyl.
Cocatalyst Fa'aopoopo: E masani ona fa'aoga fa'atasi ma se cocatalyst, e masani lava o se fa'avae alumini. O le cocatalyst e faʻagaoioia le metallocene catalyst, faʻatagaina e amata ai le tali polymerization.
2. Polymerization:
Sauniuniga Mea'ai: Propylene, le monomer mo polypropylene, e masani ona fa'aaogaina e fai ma fa'amea muamua. O le propylene e faʻamamaina e aveese ai mea leaga e mafai ona faʻalavelave i le faiga o le polymerization.
Fa'atonuga o le Reactor: O le tali polymerization e faia i totonu o se reactor i lalo o tulaga fa'aeteete. O le fa'atūina o le reactor e aofia ai le metallocene catalyst, cocatalyst, ma isi mea fa'aopoopo e mana'omia mo meatotino polymer mana'omia.
Tulaga Polymerization: O tulaga tali, e pei o le vevela, mamafa, ma le taimi e nofo ai, e pulea lelei ina ia mautinoa le mamafa mole mole manaʻomia ma le fausaga polymer. Metallocene catalysts e mafai ai ona sili atu le saʻo o le pulea o nei taʻaloga pe a faʻatusatusa i faʻasologa masani.
3. Copolymerization (Filifili):
Tuufaatasiga o Co-monomers: I nisi tulaga, e mafai ona kopiina le mPP ma isi monomers e suia ai ona meatotino. O monomers masani e aofia ai le ethylene poʻo isi alpha-olefins. O le tuʻufaʻatasia o co-monomers e mafai ai ona faʻapipiʻiina le polymer mo faʻaoga faʻapitoa.
4. Fa'amuta ma tineia:
Tali Fa'amuta: A mae'a loa le polymerization, fa'agata le tali. E masani ona ausia lenei mea e ala i le faʻaofiina o se sui faʻamutaina e tali atu i le filifili polymer malosi, taofi le tuputupu aʻe atili.
Tineina: O le polymer e vave fa'alili pe tineia ina ia taofia ai isi gaioiga ma faʻamalosia le polymer.
5. Polymer Toe Fa'aleleia ma Fa'agasologa Fa'auma:
Polymer Separation: E tuueseese le polymer mai le paluga tali. O monomer e le'i fa'a'a'a'i, fa'ato'aga fa'ato'aga, ma isi mea fa'aopoopo e fa'ate'aina e ala i auala eseese e tu'u'ese'ese ai.
Laasaga Fa'ai'u Fa'agasologa: O le mPP e mafai ona faia fa'aopoopo laasaga fa'agaioiga, e pei o le extrusion, fa'afefiloi, ma pelletization, e ausia ai le mana'oga ma meatotino. O nei laasaga e mafai ai foʻi ona tuʻufaʻatasia mea faʻaopoopo e pei o mea faʻapipiʻi, antioxidants, stabilizers, nucleating agents, colorants, ma isi mea faʻaopoopo.
Fa'ata'ita'iina o le mPP: Ose Maulu loloto ile Matafaioi Autu ole Fa'agaoioiga Fa'aopoopo
Sui Su'e: O mea fa'ase'e, e pei o amide fatty long-chain, e masani ona fa'aopoopo i le mPP e fa'aitiitia ai le fete'ena'iga i le va o filifili polymer, e taofia ai le pipii i le taimi o le gaosiga. E fesoasoani lea i le fa'aleleia atili o le fa'agasologa o le extrusion ma le fa'ailoga.
Fa'aleleia o le tafe:E fa'aleleia le tafe po'o fesoasoani fa'agaioiga, pei ole polyethylene waxes, e fa'aoga e fa'aleleia ai le tafe ole mPP. O nei mea fa'aopoopo e fa'aitiitia ai le viscosity ma fa'aleleia atili ai le malosi ole polymer e fa'atumu ai ga'o, ma maua ai le fa'agaioiga lelei.
Antioxidants:
Stabilizers: Antioxidants o faʻaopoopoga taua e puipuia ai le mPP mai le faʻaleagaina i le taimi o gaioiga. O phenols ma phosphites faʻalavelave e masani ona faʻaaogaina faʻamautu e taofia ai le faʻavaeina o radical free, puipuia le faʻaleagaina o le vevela ma le oxidative.
Nucleating Agents:
Nucleating agents, e pei o le talc poʻo isi mea faʻapitoa, e faʻaopoopoina e faʻaleleia ai le faʻatulagaina o se fausaga tioata sili atu ona faʻatonuina i le mPP. O nei mea fa'aopoopo e fa'aleleia atili ai mea fa'ainisinia o le polymer, e aofia ai le malo ma le fa'a'ao'o.
lanu:
Pigments ma Vali: E masani ona tu'ufa'atasia lanu i totonu o le mPP e ausia ai lanu fa'apitoa i le oloa mulimuli. Pigments ma vali e filifilia e faʻatatau i lanu manaʻomia ma manaʻoga faʻaoga.
Fa'atonuga o A'afiaga:
Elastomers: I fa'aoga e taua tele ai le tete'e o a'afiaga, e mafai ona fa'aopoopo i le mPP mea fa'apena e pei ole pa'u ethylene-propylene. O nei suiga e faʻaleleia ai le malosi o le polymer e aunoa ma le ositaulagaina o isi meatotino.
Fa'atasi:
Maleic Anhydride Grafts: E mafai ona faʻaogaina mea faʻapipiʻi e faʻaleleia ai le fesoʻotaʻiga i le va o le mPP ma isi polymers poʻo mea faaopoopo. Maleic anhydride sulu, mo se faʻataʻitaʻiga, e mafai ona faʻaleleia le pipii i le va o vaega polymer eseese.
Slip ma Antiblock Agents:
Slip Agents: I le faaopoopo atu i le faʻaitiitia o feteʻenaʻiga, e mafai foʻi e faʻamaʻi faʻaseʻe ona galue e fai ma sui e tetee i poloka. Antiblock agents e puipuia ai le pipii faatasi o ata tifaga poʻo luga o laupepa i le taimi e teu ai.
(E taua le maitauina o mea faʻapipiʻi faʻapitoa e faʻaaogaina i le mPP faʻatulagaina e mafai ona fesuisuiaʻi e faʻatatau i le faʻamoemoeina o le faʻaogaina, faʻasologa o tulaga, ma mea e manaʻomia. O le gaosiga o le mPP e maua ai se tulaga faʻaopoopo o le pulea ma le saʻo, faʻatagaina mo le tuʻufaʻatasia o mea faʻaopoopo i se auala e mafai ona faʻaleleia lelei e faʻafetaui ai manaʻoga faʻapitoa.)
Tatala Lelei丨Fofo Fou mo le mPP: O le Matafaioi a le Fa'aopoopoina o Tala Fou, O a mea e manaʻomia ona iloa e le au gaosi mPP!
Ua tula'i mai le mPP o se polymer fou, e ofoina atu meatotino fa'aleleia ma fa'aleleia le fa'atinoga i fa'aoga eseese. Ae ui i lea, o le mealilo i tua o lona manuia e le gata i ona uiga faʻapitoa ae faʻapea foʻi i le faʻaogaina o le faʻaogaina o mea faʻapipiʻi faʻapipiʻi.
SILIMER 5091faʻalauiloaina se auala fou e siitia ai le faʻagasologa o le metallocene polypropylene, e ofoina atu se suiga faʻamalosi i faʻaopoopoga PPA masani, ma fofo e faʻaumatia ai mea faʻapipiʻi faʻavae i lalo ole PFAS.
SILIMER 5091o le Fluorine-Free Polymer Processing Additive mo le extrusion of polypropylene material with PP e pei o le vaʻa faʻalauiloa e SILIKE. O se mea faʻapitoa polysiloxane masterbatch oloa, lea e mafai ona faʻafeiloaʻi i le gaosiga o masini ma i ai se aafiaga i le taimi o le gaosiga e ala i le faʻaaogaina o le lelei muamua o le lubrication aafiaga o le polysiloxane ma le polarity aafiaga o vaega faʻaleleia. O se vaega itiiti o fualaʻau e mafai ona faʻaleleia lelei le suavai ma le gaioiga, faʻaitiitia le drool i le taimi o le extrusion, ma faʻaleleia le tulaga o le paʻu shark, faʻaaogaina lautele e faʻaleleia ai le lubrication ma uiga o le palasitika extrusion.
O afeaPFAS-Free Polymer Processing Aid(PPA) SILIMER 5091o loʻo tuʻufaʻatasia i totonu o le metallocene polypropylene (mPP) matrix, e faʻaleleia ai le tafe o le mPP, faʻaitiitia le feteʻenaʻiga i le va o filifili polymer, ma puipuia le pipii i le taimi o gaioiga. E fesoasoani lea i le fa'aleleia atili o le fa'agasologa o le extrusion ma le fa'ailoga. fa'afaigofieina le fa'agaioiga o gaosiga ma saofagā i le lelei atoatoa.
Lafoa'i lau mea fa'aopoopo tuai,SILIKE E leai se fluorine PPA SILIMER 5091o le mea e te manaʻomia!
Taimi meli: Nov-28-2023
