Labarai

"Metallocene" yana nufin mahaɗan haɗin gwiwar ƙarfe na halitta da aka kafa ta hanyar ƙarfe na canzawa (kamar zirconium, titanium, hafnium, da dai sauransu) da cyclopentadiene. Polypropylene da aka haɗa tare da masu haɓakawa na ƙarfe ana kiransa metallocene polypropylene (mPP).

Samfuran Metallocene polypropylene (mPP) suna da mafi girma kwarara, zafi mafi girma, shinge mafi girma, tsayayyen tsabta da bayyanawa, ƙananan wari, da yuwuwar aikace-aikace a cikin Fibers, Fim ɗin Cast, Gyaran allura, Thermoforming, Likita, da sauransu. Samar da metallocene polypropylene (mPP) ya ƙunshi matakai masu mahimmanci da yawa, gami da shirye-shiryen ƙara kuzari, polymerization, da bayan-aiki.

1. Shiri Mai Taimakawa:

Zaɓin Metallocene Catalyst: Zaɓin mai kara kuzari na metallocene yana da mahimmanci wajen tantance kaddarorin mPP da aka samu. Waɗannan abubuwan haɓakawa yawanci sun haɗa da ƙarfe na canzawa, kamar zirconium ko titanium, sandwiched tsakanin cyclopentadienyl ligands.

Ƙarin Cocatalyst: Metallocene masu haɓakawa ana amfani da su tare da cocatalyst, yawanci wani fili na aluminum. Cocatalyst yana kunna mai kara kuzari na metallocene, yana ba shi damar fara amsawar polymerization.

2. Polymerization:

Shirye-shiryen Abincin Abinci: Propylene, monomer na polypropylene, yawanci ana amfani dashi azaman kayan abinci na farko. Ana tsarkake propylene don cire datti wanda zai iya tsoma baki tare da tsarin polymerization.

Saitin Reactor: Halin polymerization yana faruwa a cikin reactor ƙarƙashin yanayin kulawa da hankali. Saitin reactor ya haɗa da mai kara kuzari na metallocene, cocatalyst, da sauran abubuwan da ake buƙata don kaddarorin polymer da ake so.

Yanayi na Polymerization: Yanayin amsawa, kamar zafin jiki, matsa lamba, da lokacin zama, ana sarrafa su a hankali don tabbatar da nauyin kwayoyin da ake so da tsarin polymer. Masu kara kuzari na Metallocene suna ba da damar ingantaccen iko akan waɗannan sigogi idan aka kwatanta da masu kara kuzari na gargajiya.

3. Copolymerization (Na zaɓi):

Haɗin haɗin haɗin gwiwar: A wasu lokuta, ana iya haɗa mPP tare da wasu monomers don canza kaddarorin sa. Na kowa co-monomers sun hada da ethylene ko wasu alpha-olefins. Haɗin haɗin gwiwar haɗin gwiwar yana ba da damar gyare-gyare na polymer don takamaiman aikace-aikace.

4. Kashewa da kashewa:

Ƙarshen Amsa: Da zarar polymerization ya cika, an ƙare amsawa. Ana samun wannan sau da yawa ta hanyar gabatar da wakili na ƙarshe wanda ke amsawa tare da ƙarshen sarkar polymer mai aiki, yana dakatar da ƙarin girma.

Quenching: Ana yin sanyi da sauri ko kuma a kashe polymer don hana ƙarin halayen da kuma ƙarfafa polymer.

5. Polymer farfadowa da na'ura na Post-Processing:

Rarraba polymer: An raba polymer daga cakuda dauki. Ana cire monomers marasa amsawa, ragowar abubuwan haɓakawa, da sauran samfuran ta hanyar dabarun rabuwa daban-daban.

Matakan Gudanarwa: MPP na iya ɗaukar ƙarin matakan sarrafawa, kamar extrusion, haɗawa, da pelletization, don cimma nau'i da kaddarorin da ake so. Waɗannan matakan kuma suna ba da izinin haɗa abubuwan ƙari kamar su zamewa wakilai, antioxidants, stabilizers, wakilan nucleating, masu launin launi, da sauran abubuwan da ake sarrafa su.

Haɓaka mPP: Zurfafa Zurfi cikin Mahimman Matsayin Sarrafa Abubuwan Ƙarfafawa

Slip Agents: Ma'aikatan zamewa, irin su fatty amides mai tsawo, ana ƙara su zuwa mPP don rage rikici tsakanin sarƙoƙi na polymer, hana mannewa yayin aiki. Wannan yana taimakawa inganta tsarin extrusion da gyare-gyare.

Masu Haɓaka Ruwa:Ana amfani da masu haɓaka kwarara ko kayan aikin sarrafawa, kamar polyethylene waxes, don haɓaka narkar da mPP. Wadannan additives suna rage danko kuma suna haɓaka ikon polymer na cika cavities na ƙirƙira, yana haifar da ingantaccen aiki.

Antioxidants:

Stabilizers: Antioxidants sune mahimman abubuwan ƙari waɗanda ke kare mPP daga lalacewa yayin aiki. Abubuwan da aka hana phenols da phosphites galibi ana amfani da su masu ƙarfafawa waɗanda ke hana samuwar radicals kyauta, suna hana lalatawar thermal da oxidative.

Wakilan Nukiliya:

Ana ƙara abubuwan da ke lalata ƙwayoyin cuta, irin su talc ko wasu mahaɗan inorganic, don haɓaka samar da ƙarin tsari na crystalline da aka ba da oda a cikin mPP. Wadannan additives suna haɓaka kayan aikin injiniya na polymer, gami da taurin kai da juriya.

Masu launi:

Pigments da Rini: Sau da yawa ana haɗa masu launi cikin mPP don cimma takamaiman launuka a cikin samfurin ƙarshe. An zaɓi pigments da rini bisa ga launi da ake so da buƙatun aikace-aikace.

Masu Canza Tasiri:

Elastomers: A aikace-aikace inda juriya mai tasiri ke da mahimmanci, ana iya ƙara masu gyara tasiri kamar ethylene-propylene roba zuwa mPP. Wadannan gyare-gyare suna inganta taurin polymer ba tare da sadaukar da wasu kaddarorin ba.

Masu daidaitawa:

Maleic Anhydride Grafts: Ana iya amfani da masu daidaitawa don haɓaka daidaituwa tsakanin mPP da sauran polymers ko ƙari. Maleic anhydride grafts, alal misali, na iya haɓaka mannewa tsakanin sassa daban-daban na polymer.

Wakilan Slip da Antiblock:

Slip Agents: Baya ga rage gogayya, ma'aikatan zamewa kuma suna iya aiki azaman masu hana toshewa. Jami'an hana katange suna hana mannewa wuri tare da fim ko filaye yayin ajiya.

(Yana da mahimmanci a lura cewa ƙayyadaddun abubuwan da ake amfani da su a cikin tsarin mPP na iya bambanta dangane da aikace-aikacen da aka yi niyya, yanayin sarrafawa, da kaddarorin kayan da ake so. Masu kera suna zaɓar waɗannan abubuwan ƙari a hankali don cimma kyakkyawan aiki a ƙarshen samfurin. Samar da mPP yana ba da ƙarin matakin sarrafawa da daidaito, yana ba da damar haɗa abubuwan ƙari ta hanyar da za a iya daidaita su don saduwa da takamaiman buƙatu.)

Ƙimar Buɗewa丨Ƙirƙirar Magani don mPP: Matsayin Ƙarar Sarrafa Novel, Abin da masana'antun mPP ya kamata su sani!

mPP ya fito azaman polymer mai juyi, yana ba da ingantattun kaddarorin da ingantaccen aiki a aikace-aikace daban-daban. Duk da haka, sirrin da ke bayan nasararsa ba wai kawai a cikin halayensa ba ne har ma a cikin dabarun amfani da kayan aikin haɓakawa.

Farashin 5091yana gabatar da wata sabuwar hanya don haɓaka iya aiki na metallocene polypropylene, yana ba da zaɓi mai tursasawa ga abubuwan ƙari na PPA na al'ada, da mafita don kawar da abubuwan da ke tushen fluorine a ƙarƙashin iyakokin PFAS.

Farashin 5091Ƙararrawar sarrafa Polymer ɗin Kyauta ce ta Fluorine don fitar da kayan polypropylene tare da PP kamar yadda mai ɗauka ta SILIKE. Yana da samfurin polysiloxane masterbatch da aka gyara, wanda zai iya yin ƙaura zuwa kayan aiki kuma yana da tasiri yayin aiki ta hanyar amfani da kyakkyawan tasirin sa mai na farko na polysiloxane da tasirin polarity na ƙungiyoyin da aka gyara. A kananan adadin sashi iya yadda ya kamata inganta fluidity da processability, rage mutu drool a lokacin extrusion, da kuma inganta sabon abu na shark fata, yadu amfani da inganta lubrication da surface halaye na filastik extrusion.

YaushePFAS-Free Polymer Processing Aid (PPA) SILIMER 5091an haɗa shi cikin matrix metallocene polypropylene (mPP), yana inganta narkewar mPP, yana rage juzu'i tsakanin sarƙoƙi na polymer, kuma yana hana tsayawa yayin aiki. Wannan yana taimakawa inganta tsarin extrusion da gyare-gyare. sauƙaƙe hanyoyin samar da santsi da ba da gudummawa ga ingantaccen aiki gabaɗaya.

Jefa tsohuwar kayan aikinku,SILIKE PPA SILIMER 5091shine abin da kuke bukata!