Kaolin is a non-metallic mineral, rudzi rwevhu uye dombo revhu rinotungamirirwa nekaolinite yevhu zvicherwa.Nemhaka yokuti rakachena uye harina kusimba, rinonziwo ivhu remakore machena.Inotumidzwa zita reGaoling Village, Jingde Town, Jiangxi Province.

Kaolin yayo yakachena ichena, yakapfava uye yakapfava ivhu-sevhu, uye ine yakanaka yemuviri uye makemikari zvinhu zvakaita sepurasitiki uye kudzivirira moto.Kuumbwa kwayo kwemaminerari kunonyanya kuumbwa nekaolinite, halloysite, hydromica, illite, montmorillonite, quartz, feldspar uye mamwe maminerari.Kaolin ine zvakasiyana-siyana zvekushandisa, kunyanya kushandiswa mukugadzira mapepa, ceramics uye refractory zvinhu, zvichiteverwa nekuputira, rubber fillers, enamel glazes uye chena simende mbishi zvinhu, uye shoma inoshandiswa mumapurasitiki, pendi, pigments, mavhiri ekukuya, mapenzura, zvizorwa zvezuva nezuva, sipo, Pesticide, mushonga, machira, peturu, makemikari, zvekuvakisa, kudzivirira kwenyika uye mamwe maindasitiri.
Yakapetwa Whiteness Kupenya
Kuchena ndechimwe chezvinhu zvakakosha zvekaolin tekinoroji kuita, uye kaolin ine kuchena kwepamusoro ichena.Kuchena kwekaolin kwakakamurwa kuita kuchena kwechisikigo uye kuchena mushure mekuverengera.Kune zveceramic raw materials, kuchena mushure mekuverenga kunonyanya kukosha, uye iyo yakakwirira ye calcination whiteness, zviri nani kunaka.Tekinoroji yeceramic inotaura kuti kuomeswa pa105 ° C ndiyo chiyero chekuyera kuchena kwechisikigo, uye calcining pa1300 ° C ndiyo giredhi yekuyera kuchena.Huchena hunogona kuyerwa nemita yekuchena.Meta yewhiteness mudziyo unoyera kuratidzwa kwechiedza newavelength ye3800-7000Å (kureva Angstrom, 1 Angstrom = 0.1 nm).Mune mita yehuchena, enzanisa kuratidzwa kwemuenzaniso kuti uedzwe neyakajairwa sampuli (yakadai seBaSO4, MgO, nezvimwewo), kureva kukosha kwekuchena (semuenzaniso, kuchena 90 kunoreva 90% yekuratidzira kwe chiyero chemuenzaniso).

Kupenya inzvimbo yemaitiro yakafanana nekuchena, iyo yakaenzana nekuchena pasi pe4570Å (Angstrom) wavelength light irradiation.

Ruvara rwekaolin runonyanya kuenderana nesimbi okisijeni kana organic matter yainayo.Kazhinji, ine Fe2O3, iyo yakatsvuka uye yakasvibira yero;ine Fe2+, iyo yakacheneruka yebhuruu uye yakachenuruka yegirini;ine MnO2, ine shava;ine organic matter, iyo yakachenuruka yero, grey, bhuruu, uye dema.Kuvapo kwetsvina iyi kunoderedza kuchena kwechisikigo kwekaolin, uye iron uye titanium zvicherwa zvinokanganisawo kuchena kwecalcined, zvichikonzera mavara kana mavanga mu porcelain.