Mpweya wakuda wa kaboni (silika dioxide) umagawidwa m'magulu awiri: silika wopangidwa ndi fumed (gawo la nthunzi) ndi silika wopangidwa ndi precipitated (gawo lamadzi), iliyonse ili ndi makhalidwe ake komanso momwe amagwiritsidwira ntchito.
Silika Wofufuma
Silika yofukiza, yopangidwa kudzera mu hydrolysis ya chlorosilanes yotentha kwambiri mu lawi la haidrojeni-oxygen, ili ndi chiyero cha ≥99.8%, tinthu tating'onoting'ono ta nanoscale primary (7–40 nm), komanso malo apamwamba kwambiri (100–400 m²/g). Imapanga maukonde olimba a thixotropic, imapereka mphamvu yabwino kwambiri, kukhazikika kwa kutentha, komanso kutchinjiriza magetsi. Yabwino kwambiri pakugwiritsa ntchito zinthu zapamwamba, imagwira ntchito ngati chothandizira kwambiri mu rabara za silicone, chosinthira rheology mu zokutira/zomatira kuti zisagwe, komanso chowonjezera chofunikira mu zodzoladzola, zophimba zamagetsi, ndi zinthu za batri.
Silika Yophwanyika
Silika yonyowa, yopangidwa ndi sodium silicate yofewa ndi asidi (monga H₂SO₄) kutsatiridwa ndi mvula ndi kuumitsa, imakhala ndi chiyero chozungulira 93%, tinthu tating'onoting'ono tomwe timasonkhana (micron scale), ndi malo ocheperako (100–200 m²/g). Yotsika mtengo komanso yosavuta kuikonza, imagwira ntchito bwino kwambiri pamitengo yotsika mtengo. Imagwiritsidwa ntchito kwambiri ngati chodzaza cholimbitsa matayala (kuchepetsa kukana kwa magudumu) ndi zinthu za rabara, chothandizira matingi mu utoto, chothandizira kukangana mu mankhwala otsukira mano, komanso chothandizira/choletsa kuyika matingi mu chakudya ndi zakudya zowonjezera.
Silika Yofufumitsidwa (Gawo la Nthunzi)
- Kupanga:Kuchuluka kwa kutentha kwa chlorosilanes mu lawi la H–O2
- Chiyero:≥99.8%
- Kukula kwa Tinthu:7–40 nm (tinthu tating'onoting'ono ta nanoscale primary)
- Malo Odziwika Pamwamba:100–400 m²/g
- Katundu Wofunika:Ma network a Thixotropic, kulimbitsa kwapadera, kukhazikika kwa kutentha, kutchinjiriza magetsi
- Mapulogalamu:Rabala za silikoni, zokutira/zomatira (zoletsa kugwa), zodzoladzola, zophimba zamagetsi, zipangizo za batri
Silika Yophwanyidwa (Gawo la Madzi)
- Kupanga:Kuchepetsa sodium silicate ndi asidi (monga H₂SO₄), mvula ndi kuumitsa
- Chiyero:~93%
- Kukula kwa Tinthu:Mulingo wa micron (wophatikizana)
- Malo Odziwika Pamwamba:100–200 m²/g
- Katundu Wofunika:Yotsika mtengo, yosavuta kugwiritsa ntchito, komanso yodalirika
- Mapulogalamu:Matayala (ochepetsa kukana kwa magudumu), zinthu za rabara, chopaka utoto, chopaka mano, chonyamula chakudya ndi chakudya/choletsa kuyika magudumu
Kusiyana Kwakukulu: Magwiridwe Antchito vs. Mtengo
Kusiyana kwakukulu kuli mu magwiridwe antchito ndi mtengo:silika wofukizaimapereka mphamvu komanso kukhazikika kwapamwamba pa ntchito zapamwamba pamtengo wokwera, pomwesilika wosungunukaimapereka magwiridwe antchito odalirika pamtengo wotsika pazosowa zonse. Kusankha mtundu woyenera kumawongolera magwiridwe antchito azinthu, kulinganiza ndalama, komanso kumagwirizana ndi zofunikira zinazake zogwiritsira ntchito.
Nkhaniyi ikupereka chithunzithunzi chomveka bwino kuti chikuthandizeni kusankha silica yoyenera kwambiri pa ntchito zanu.
Nthawi yotumizira: Epulo-13-2026