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Gabatarwa: Matsayin Sinadaran Silicone a Sarrafa Sinadaran Polymer
Ana amfani da ƙarin silicone sosai a matsayin kayan aikin sarrafawa da masu gyara aiki a cikin masana'antar polymer don daidaita halayen narkewa, inganta halayen saman, da haɓaka kwanciyar hankali na sarrafawa a ƙarƙashin yanayin samar da kayan aiki mai yawa.
A cikin yanayin sarrafa thermoplastic kamar extrusion, injectable molding, bulking film, da compounding, polymers galibi suna fuskantar matsin lamba mai yawa da yanayin zafi mai yawa. Waɗannan yanayi na iya haifar da ƙalubalen sarrafawa gama gari, gami da rashin daidaituwar kwararar narkewa, lahani a saman (kamar karyewar narkewa da fatar sharks), tarin matattu, da rashin daidaiton ingancin samfur.
An ƙera ƙarin silicone don magance waɗannan iyakokin fuska da rheological ta hanyar rage gogayya tsakanin polymer da ƙarfe, inganta man shafawa a mahaɗin narkewa, da kuma daidaita yanayin kwarara yayin sarrafawa. Sakamakon haka, suna ba da gudummawa ga ingantaccen aikin samarwa da kuma ingantaccen aikin samfurin ƙarshe.
Ana amfani da su sosai a cikin manyan tsarin polymer, gami da polyolefins (PE, PP, LLDPE, HDPE, EVA), mahaɗan PVC, thermoplastic elastomers (TPE, TPU, TPO, TPV), da robobi na injiniya (ABS, PC, PA/Nylon, PBT, PET, PPS, POM, da PMMA).
Daga mahangar sarrafawa, ana amfani da ƙarin silicone a cikin extrusion, ƙera allura, busa fim, da hanyoyin haɗa abubuwa, inda suke taimakawa wajen daidaita narkewar rheology, rage gogayya tsakanin fuska, da rage lahani da suka shafi saman da mutuwa a ƙarƙashin yanayin aiki mai ci gaba ko mai sauri.
Aikace-aikacen ƙarshe sun haɗa da tsarin waya da kebul, kayan ciki na mota, kayan takalma, bututu, marufi mai sassauƙa, shafa, fenti, zare, da kuma nau'ikan samfuran filastik iri-iri da aka ƙera da kuma waɗanda aka gyara.
Tare da ƙara yawan fifikon masana'antu kan haɓaka yawan aiki, ƙara yawan sarrafa inganci, rage yawan sharar gida, da kuma inganta dorewar kayan aiki, ba a sake ɗaukar ƙarin silicone a matsayin kayan aiki masu sauƙi na sarrafawa ba. Madadin haka, ana ƙara haɗa su a matsayin abubuwan da ke cikin tsarin polymer, suna ba da gudummawa kai tsaye ga ingancin sarrafawa da kuma aikin ƙarshe na samfur.
Sakamakon haka, masana'antun kayan haɗin silicone sun zama manyan abokan hulɗar fasaha a duk faɗin sarkar ƙimar polymer ta duniya.
Wannan labarin ya yi tsokaci kan manyan masana'antun kayan haɗin silicone guda 10 a duk duniya, yana taimaka wa masu sarrafawa su gano manyan masu samar da kayayyaki, fasahohi, da mafita don aikace-aikacen sarrafa polymer.

Menene Ƙarin Silicone?
Ƙarin silicone—wanda kuma ake kira ƙarin silicone, ƙarin siloxane, ko ƙarin polysiloxane—su ne kayan aikin sarrafawa da kayan haɓaka aiki waɗanda galibi suka dogara da polydimethylsiloxane (PDMS) ko mahaɗan organosilicon da aka gyara.
Ana haɗa su a ƙananan yawan da ake samu (yawanci 0.1–5%) don inganta sauƙin sarrafawa, halayen saman, da kuma dorewar samfur na dogon lokaci.
Muhimman Ayyukan Aiki
• Rage gogayya da kuma inganta yanayin kwararar ruwa
• Hana lahani a saman fata kamar karyewar narkewa da fatar kifin shark
• Rage taruwar gawayi da kuma rage gurɓatar kayan aiki
• Inganta santsi a saman da kuma halayen taɓawa
• Inganta daidaiton samarwa da kuma yadda ake amfani da shi

Sinadaran Sinadaran Sinadaran Silicone
Aikin ƙarin silicone ya samo asali ne daga tushen su mai sassauƙa na silicon-oxygen (Si-O), wanda galibi ana amfani da shi tare da ƙungiyoyin gefen halitta kamar methyl.
Wannan tsarin kwayoyin halitta na musamman yana samar da:
• Ƙarancin matsin lamba a saman don ƙara man shafawa
• Babban kwanciyar hankali na zafi da oxidative a ƙarƙashin yanayin aiki mai wahala
• Ruwan da ke hana danshi wanda ke taimakawa wajen kare saman polymer daga danshi
• Zamewa da man shafawa mai kyau, rage matsin lamba yayin fitar da iska da ƙera
• Rashin daidaiton sinadarai da sassauci, wanda ke ba da damar dacewa da nau'ikan polymers iri-iri

Nau'ikan Ƙarin Silicone na Zamani
An ƙera ƙarin silicone don biyan takamaiman buƙatun aiki dangane da nauyin kwayoyin halitta, ƙungiyoyin aiki, da tsarin polymer. Siffofin masana'antu na yau da kullun sun haɗa da ruwayen silicone (mai), siloxanes, silicones da aka gyara da polyether, resin silicone, masterbatches na silicone, da foda silicone.

1. Babban rukunin silicone
Tsarin masterbatch na silicone wani tsari ne mai inganci wanda aka yi amfani da shi sosai a masana'antar polymer. Fasaha ta zamani ta dogara ne akan watsa polymers na siloxane masu nauyin kwayoyin halitta (UHMW) zuwa cikin nau'ikan masu ɗaukar thermoplastic daban-daban (gami da polyolefins, robobi na injiniya, da elastomers na thermoplastic). Ana isar da shi a cikin nau'in pellet na yau da kullun, yana ba da damar yin allurar tsafta, daidai gwargwado kai tsaye cikin matrix na thermoplastic yayin haɗawa, fitarwa, ko ƙera allura. Ba kamar kakin gargajiya na gargajiya ba, amides na fatty acid, ko mai mai ƙarancin nauyin kwayoyin halitta, UHMW silicone masters suna ba da mafi kyawun zamewa a saman da sakin mold yayin da suke guje wa lahani kamar zamewar sukurori.

2. Ruwan Silikon (PDMS)
Ruwan Silicone (PDMS) ƙananan nauyi ne na kwayoyin halitta, masu layi, masu silikon da ba sa amsawa wanda aka siffanta shi da kashin baya na silicon-oxygen (-Si-O-) mai maimaitawa tare da ƙungiyoyin gefen methyl. A cikin sarrafa polymer, suna aiki ne kawai azaman kayan aikin sarrafa jiki na ɗan lokaci da mai mai na waje. Saboda yawan motsi na kwayoyin halitta da rashin haɗin sinadarai tare da matrix polymer mai masaukin baki, suna rage narkewar danko da karfin juyi amma suna da saurin ƙaura, wanda ke haifar da fitar da saman, zamewar sukurori, da kuma gazawar fenti ko mannewa daga baya.

3. Ƙarin Organosilicone Masu Aiki
Ƙarin Organosilicone na Aiki sune ƙwayoyin silicone masu haɗa sinadarai, ko kuma waɗanda aka gyara su ta hanyar organo waɗanda suka haɗa ƙungiyoyin aiki masu amsawa ko na polar (kamar epoxy, amino, carboxy, vinyl, ko polyether) zuwa cikin kashin baya na siloxane ko ƙarshen sarka. Ba kamar PDMS na yau da kullun ba, waɗannan ƙarin an ƙera su ta hanyar ƙwayoyin halitta don yin aiki azaman masu gyara fuska da masu daidaitawa masu amsawa. Suna rage tashin hankali tsakanin fuska da haɓaka mannewa tsakanin abubuwan da ba su dace ba, suna mai da su mahimmanci don haɓaka robobi na injiniya, haɓaka aikin polymers masu sake amfani da su/PCR, da inganta jikewa da watsawa na cikawa (misali, masu hana harshen halogen, zaruruwan gilashi) a cikin tsarin polymer masu sassa da yawa.

4. Foda na Silicone
Foda na Silicone suna da tsari mai gudana, mai ƙarfi, kuma mai siffa ta silicone, wanda galibi ya ƙunshi polymers na siloxane masu nauyin ƙwayoyin halitta (UHMW) waɗanda aka makale a cikin tsakiyar silica mara tsari, ko kuma resin silicone mai siffar ƙwallo uku (misali, polymethylsilsesquioxane). An ƙera su azaman masu gyara aiki na dindindin, an haɗa su zuwa thermoplastics don samar da haɓaka saman da ke daɗewa - kamar juriya na karce da lalacewa na dindindin, raguwar Coefficient of Friction (COF), da fasalulluka na hana toshewa - ba tare da lalata halayen injiniya na substrate ko iya fenti bayan sarrafawa ba.