nkhani

Monga wachiwiri wamkulu wogwiritsa ntchito titaniyamu woipa, makampani apulasitiki ndiye gawo lomwe likukula kwambiri m'zaka zaposachedwa, ndikukula kwapakati pachaka ndi 6%.Mwa magiredi opitilira 500 a titanium dioxide padziko lapansi, magiredi opitilira 50 amaperekedwa ku mapulasitiki.Kugwiritsa ntchito titaniyamu woipa muzinthu zapulasitiki, kuwonjezera pa kugwiritsa ntchito mphamvu zake zobisala, mphamvu zazikulu za achromatic ndi zinthu zina za pigment, zimathanso kusintha kukana kutentha, kukana kuwala ndi kukana kwa nyengo kwa zinthu zapulasitiki, kuti zinthu zapulasitiki zitetezedwe ku. UV kuwala.Kuwukira, sinthani makina ndi magetsi pazinthu zapulasitiki.
Popeza zopangidwa ndi pulasitiki ndi zokhuthala kwambiri kuposa utoto ndi inki, sizifuna kuchuluka kwa inki, komanso zimakhala ndi mphamvu zobisalira komanso mphamvu zamphamvu zopangira, ndipo mlingo wake ndi 3% mpaka 5% yokha.Amagwiritsidwa ntchito pafupifupi mapulasitiki onse a thermosetting ndi thermoplastic, monga polyolefins (makamaka polyethylene yotsika kwambiri), polystyrene, ABS, polyvinyl chloride, etc. Ikhoza kusakanikirana ndi ufa wouma wouma kapena zowonjezera.Gawo lamadzimadzi la plasticizer limasakanikirana, ndipo zina zimagwiritsidwa ntchito pambuyo pokonza titaniyamu woipa kukhala masterbatch.

Kusanthula kwapadera kwa titanium dioxide mumakampani apulasitiki ndi mtundu wa masterbatch

Ambiri mwa titaniyamu woipa wa mapulasitiki ali ndi kukula kwa tinthu tating'ono.Kawirikawiri, tinthu kukula kwa titaniyamu woipa kwa zokutira ndi 0,2 ~ 0.4μm, pamene tinthu kukula titaniyamu woipa kwa mapulasitiki ndi 0,15 ~ 0.3μm, kuti maziko buluu akhoza analandira.Ma resins ambiri okhala ndi gawo lachikasu kapena ma resin omwe ndi osavuta kukhala achikasu amakhala ndi masking.

Titaniyamu woipa wa mapulasitiki wamba nthawi zambiri salandira mankhwala pamwamba, chifukwa titaniyamu woipa wokutidwa ndi zinthu inorganic monga ochiritsira hydrated aluminiyamu, pamene chinyezi wachibale ndi 60%, ndi adsorption mgwirizano madzi pafupifupi 1%, pamene pulasitiki ndi chofinyidwa pa kutentha kwambiri. .Panthawi yokonza, kutuluka kwa madzi kumapangitsa kuti pores awoneke pa pulasitiki yosalala.Mtundu woterewu wa titaniyamu woipa wopanda zokutira wachilengedwe nthawi zambiri umayenera kuthandizidwa ndi organic surface (polyol, silane kapena siloxane), chifukwa titaniyamu dioxide imagwiritsidwa ntchito popanga mapulasitiki.Osiyana ndi titaniyamu woipa kwa zokutira, woyamba kukonzedwa ndi kusakaniza otsika-polarity utomoni ndi kukameta ubweya mphamvu, ndi titaniyamu woipa pambuyo organic pamwamba mankhwala akhoza bwino omwazika pansi yoyenera makina akumeta ubweya mphamvu.

Ndi kukulitsa kosalekeza kwa mitundu yogwiritsira ntchito pulasitiki, zinthu zambiri zakunja zapulasitiki, monga zitseko zapulasitiki ndi mazenera, zida zomangira ndi zinthu zina zapulasitiki zakunja, zimakhalanso ndi zofunika kwambiri pakukana nyengo.Kuphatikiza pa kugwiritsa ntchito rutile titanium dioxide, chithandizo chapamwamba chimafunikanso.Kuchiza kwapamwamba kumeneku sikumawonjezera zinki, silicon, aluminiyamu, zirconium, ndi zina zomwe zimawonjezeredwa.Silicon imakhala ndi hydrophilic ndi dehumidifying effect, yomwe ingalepheretse mapangidwe a pores chifukwa cha evaporation ya madzi pamene pulasitiki imatulutsidwa pa kutentha kwakukulu, koma kuchuluka kwa mankhwala ochizira pamwambawa nthawi zambiri sikuchuluka kwambiri.