Kabhoni chena dema (silica dioxide) inoiswa muzvikamu zvakaita se silica ine fumed (chikamu cheutsi) uye silica ine precipitated (chikamu chemvura), imwe neimwe ine hunhu hwakasiyana uye mashandisirwo ayo.
Silika Yakanyungudutswa
Silica ine fume, inogadzirwa kuburikidza nehydrolysis yechlorosilanes inodziya zvakanyanya mumurazvo wehydrogen-oxygen, ine kuchena kwe ≥99.8%, nanoscale primary particles (7–40 nm), uye nzvimbo yepamusoro-soro (100–400 m²/g). Inogadzira network dzakasimba dzethixotropic, ichipa simba rakasimba, kugadzikana kwekupisa, uye kudzivirira magetsi. Yakanakira kushandiswa kwepamusoro-soro, inoshanda semushonga unotsigira zvakanyanya mumarubha esilicone, rheology modifier mu coatings/adhesives kudzivirira kudonha, uye chinhu chakakosha mu cosmetics, electronic encapsulants, uye zvinhu zvebhatiri.
Silica yakanyungudika
Silica yakanyungudika, inogadzirwa nekubvisa sodium silicate neacid (semuenzaniso, H₂SO₄) ichiteverwa nemvura uye kuoma, ine kuchena kwe93%, zvidimbu zvakakura zvakaungana (micron scale), uye nzvimbo iri pakati nepakati (100–200 m²/g). Inoshanda zvishoma uye iri nyore kugadzirisa, inobudirira mumamiriro ezvinhu anonyanya kudhura. Inoshandiswa zvakanyanya sekusimbisa kuzadza mumatayi (kuderedza kusimba kwekutenderera) uye zvigadzirwa zverabha, chinhu chinobatirira mumapendi, chinhu chinobatirira mumazino emazino, uye chinhu chinotakura/chinodzivirira kugadzika muzvikafu nezvikafu.
Silica Yakafurwa (Chikamu cheUtsi)
- Kugadzirwa:Kupisa kwakanyanya kwe chlorosilanes mumurazvo weH-O2
- Kuchena:≥99.8%
- Saizi yeChidimbu:7–40 nm (nanoscale primary particles)
- Nzvimbo Yakananga:100–400 m²/g
- Zvimiro Zvikuru:Network dzeThixotropic, kusimbiswa kwakanyanya, kugadzikana kwekupisa, kuputira magetsi
- Mashandisirwo:Rabha dzesilicone, machira/zvinonamira (zvinodzivirira kudonha), zvizoro, zvinhu zvemagetsi zvinofukidza madziro, zvinhu zvemabhatiri
Silica Yakanyungudutswa (Chikamu Chemvura)
- Kugadzirwa:Kubvisa sodium silicate ne acid (semuenzaniso, H₂SO₄), kunaya kwemvura nekuomesa
- Kuchena:~93%
- Saizi yeChidimbu:Chikero che micron (chakaunganidzwa)
- Nzvimbo Yakananga:100–200 m²/g
- Zvimiro Zvikuru:Inodhura zvishoma, iri nyore kugadzirisa, uye inoshanda zvakanaka
- Mashandisirwo:Matayi (kuderedza kusimba kwemuchina), zvigadzirwa zverabha, chinhu chinogadzirisa pendi, chinhu chinogadzirisa kukweshana kwemazino, chinhu chinotakura chikafu nechikafu/chinhu chinodzivirira kukwesha
Musiyano Mukuru: Kushanda vs. Mutengo
Musiyano mukuru uri mukushanda uye mutengo:silica yakafurwainopa simba rakakwirira uye kugadzikana kwezvishandiso zvinoshanda zvakanyanya pamutengo wakakwira, ukuwosilica yakakangwainopa mashandiro akavimbika nemutengo wakaderera kune zvinodiwa zvemazuva ese. Kusarudza mhando chaiyo kunogadzirisa mashandiro ezvigadzirwa, kunoenzanisa mitengo, uye kunoenderana nezvinodiwa zvekushandisa.
Chinyorwa chino chinopa ruzivo rwakajeka kuti chikubatsire kusarudza silica yakakodzera mapurojekiti ako.
Nguva yekutumira: Kubvumbi-13-2026