Nkhani

Silikoni masterbatchndi mtundu wa zowonjezera mumakampani opanga mphira ndi pulasitiki. Ukadaulo wapamwamba pantchito yowonjezera silicone ndikugwiritsa ntchito polymer ya silicone yolemera kwambiri (UHMW) (PDMS) mu ma resins osiyanasiyana a thermoplastic, monga LDPE, EVA, TPEE, HDPE, ABS, PP, PA6, PET, TPU, HIPS, POM, LLDPE, PC, SAN, ndi zina zotero. Ndipo ngati ma pellets kuti alole kuwonjezera mosavuta zowonjezera mwachindunji ku thermoplastic panthawi yokonza. kuphatikiza kukonza bwino kwambiri ndi mtengo wotsika mtengo. Silicone masterbatch ndi yosavuta kuyika, kapena kusakaniza, mu pulasitiki panthawi yophatikiza, kutulutsa, kapena kupanga jekeseni. Ndi bwino kuposa mafuta a sera achikhalidwe ndi zowonjezera zina pakukweza kutsetsereka panthawi yopanga. Chifukwa chake, ma processor apulasitiki amakonda kuwagwiritsa ntchito popanga.

Udindo waSilikoni Masterbatch zowonjezeramu Kukonza Kukonza Mapulasitiki

Chipolopolo cha silicone masterbatch ndi chimodzi mwa zinthu zodziwika bwino zomwe zimagwiritsidwa ntchito popanga ma processors pakupanga pulasitiki komanso kukonza bwino pamwamba. Monga mtundu wa mafuta odzola kwambiri. Chimagwira ntchito zazikulu izi zikagwiritsidwa ntchito mu utomoni wa thermoplastic:

A. Kuwongolera kayendedwe ka utomoni ndi kukonza;

Kudzaza bwino nkhungu ndi kutulutsa nkhungu

Chepetsani mphamvu ya extrude ndikuwonjezera kuchuluka kwa extrusion;

B. Kumawongolera mawonekedwe a pamwamba pa utomoni

Sinthani kutha kwa pamwamba pa pulasitiki, digiri yosalala, ndikuchepetsa kuchuluka kwa kukangana kwa khungu, Sinthani kukana kuvala ndi kukana kukanda;

Ndipo silicone masterbatch ili ndi bata labwino la kutentha (kutentha kwa kutentha ndi pafupifupi 430 ℃ mu nayitrogeni) komanso kusamuka;

Kuteteza chilengedwe;

Kukhudzana ndi chakudya mosamala.

Tiyenera kunena kuti ntchito zonse za silicone masterbatches ndi za A ndi B (mfundo ziwiri zomwe tatchula pamwambapa) koma si mfundo ziwiri zodziyimira pawokha koma

zimathandizana, ndipo zimagwirizana kwambiri.

Zotsatira pa zinthu zomaliza

Chifukwa cha mawonekedwe a kapangidwe ka molekyulu ya siloxane, mlingo wake ndi wochepa kwambiri kotero kuti wonse palibe zotsatira pa kapangidwe ka makina a zinthu zomaliza. Kawirikawiri, kupatula kutalika ndi mphamvu ya kukhudza zidzawonjezeka pang'ono, popanda zotsatira pa zinthu zina zamakina. Pa mlingo waukulu, imakhala ndi mphamvu yogwirizana ndi zinthu zoletsa moto.

Chifukwa cha kugwira ntchito kwake bwino kwambiri pa kutentha kwakukulu komanso kotsika, sikudzabweretsa zotsatirapo zoyipa pa kutentha kwakukulu komanso kotsika kwa zinthu zomaliza. Pomwe kuyenda kwa utomoni, kukonza, ndi mawonekedwe a pamwamba kudzakwera bwino ndipo COF idzachepa.

Njira yochitira zinthu

Ma masterbatches a silikoniNdi ma polysiloxane olemera kwambiri omwe amafalikira m'ma resini osiyanasiyana onyamula omwe ndi mtundu wa ntchito ya masterbatch. Pamene kulemera kwa ma molekyulu kumakhala kwakukulu kwambirima masterbatches a silikoniAmawonjezedwa mu mapulasitiki chifukwa cha mphamvu zawo zochepa pamwamba, amakhala ndi chizolowezi chosamukira pamwamba pa pulasitiki panthawi yosungunuka; pomwe, popeza ali ndi kulemera kwakukulu kwa mamolekyulu, sangathe kutuluka kwathunthu. Chifukwa cha izi, timatcha mgwirizano ndi mgwirizano pakati pa kusamuka ndi kusamuka. Chifukwa cha izi, gawo lolimba la mafuta linapangidwa pakati pa pamwamba pa pulasitiki ndi screw.

Pamene ntchito yokonza ikupitirira, mafuta odzolawa akuchotsedwa ndikupangidwa nthawi zonse. Chifukwa chake kuyenda kwa utomoni ndi kukonza kukukulirakulira nthawi zonse ndikuchepetsa mphamvu yamagetsi, mphamvu ya zida ndikukweza mphamvu yotulutsa. Pambuyo pokonza ma twin-screw, silicone masterbatches idzagawidwa mofanana mu pulasitiki ndikupanga tinthu tamafuta ta 1 mpaka 2-micron pansi pa maikulosikopu, tinthu tamafuta amenewo tidzapatsa zinthuzo mawonekedwe abwino, kumva bwino m'manja, COF yochepa, komanso kukana kukanda kwambiri.

Kuchokera pachithunzichi tikutha kuona kuti silicone idzakhala tinthu tating'onoting'ono ikangobalalika mu pulasitiki, chinthu chimodzi chomwe tiyenera kunena ndichakuti kufalikira ndiye chizindikiro chofunikira cha silicone masterbatches, tinthu tating'onoting'ono timeneti tikagawidwa mofanana, zotsatira zake zimakhala zabwino.