Titaniyamu dioxide

Titanium dioxide (TiO2) ndi pigment yoyera yomwe imagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana chifukwa cha mawonekedwe ake apadera. Nazi mwachidule titanium dioxide, katundu wake, ndi ntchito zake zosiyanasiyana:

1. Kapangidwe ka Chemical: Titanium dioxide ndi oxide yochitika mwachilengedwe ya titaniyamu yokhala ndi chilinganizo cha mankhwala TiO2. Imapezeka m'mitundu ingapo ya crystalline, ndipo rutile ndi anatase ndizofala kwambiri. Rutile TiO2 imadziwika chifukwa cha mawonekedwe ake apamwamba komanso mawonekedwe ake, pomwe anatase TiO2 ikuwonetsa zochitika zapamwamba kwambiri za Photocatalytic.
2. White Pigment: Chimodzi mwa zinthu zazikulu zimene titaniyamu amagwiritsira ntchito ndi monga utoto woyera mu utoto, zokutira, mapulasitiki, ndi mapepala. Zimapereka kuwala, kuwala, ndi zoyera kwa zipangizozi, kuzipangitsa kuti zikhale zowoneka bwino ndikuwonjezera kuphimba kwake ndi mphamvu zobisala. Titanium dioxide imakondedwa kuposa mitundu ina yoyera chifukwa cha mphamvu zake zobalalitsa kuwala komanso kukana kusinthika.
3. UV Absorber ndi Sunscreen: Titanium dioxide imagwiritsidwa ntchito kwambiri ngati choyatsira UV muzoteteza ku dzuwa ndi zinthu zodzikongoletsera. Imagwira ntchito ngati zoteteza ku dzuwa powonetsa ndikumwaza cheza cha UV, potero zimateteza khungu ku zotsatira zoyipa monga kupsa ndi dzuwa, kukalamba msanga, ndi khansa yapakhungu. Nanoscale titanium dioxide particles nthawi zambiri amagwiritsidwa ntchito popanga zoteteza ku dzuwa kuti ziwonekere komanso kutetezedwa kwa UV.
4. Photocatalyst: Mitundu ina ya titanium dioxide, makamaka anatase TiO2, imawonetsa zochitika za photocatalytic ikayatsidwa ndi kuwala kwa ultraviolet. Katunduyu amathandizira kuti titaniyamu woipa azitha kusokoneza zinthu zosiyanasiyana, monga kuwonongeka kwa zinthu zowononga zachilengedwe komanso kutsekereza malo. Photocatalytic titanium dioxide imagwiritsidwa ntchito podzitchinjiriza, makina oyeretsera mpweya, ndi ntchito zochizira madzi.
5. Chowonjezera Chakudya: Titanium dioxide imavomerezedwa ngati chowonjezera cha chakudya (E171) ndi mabungwe olamulira monga FDA ndi European Food Safety Authority (EFSA). Amagwiritsidwa ntchito kwambiri pazakudya, monga confectionery, zinthu zowotcha, ndi mkaka, monga zoyera komanso zowoneka bwino. Titanium dioxide imathandiza kukonza maonekedwe ndi maonekedwe a zakudya, kuzipangitsa kukhala zokopa kwambiri kwa ogula.
6. Thandizo Lothandizira: Titanium dioxide imakhala ngati chithandizo chothandizira pamagulu osiyanasiyana a mankhwala, kuphatikizapo heterogeneous catalysis ndi kukonza chilengedwe. Amapereka malo okwera kwambiri komanso mawonekedwe okhazikika othandizira malo othandizira, kuwongolera magwiridwe antchito amankhwala komanso kuwonongeka koyipa. Zothandizira zothandizidwa ndi Titanium dioxide zimagwiritsidwa ntchito pazinthu monga kutulutsa utsi wamagalimoto, kupanga ma hydrogen, komanso kuthira madzi oyipa.
7. Electroceramics: Titanium dioxide imagwiritsidwa ntchito popanga zinthu zamagetsi, monga ma capacitors, varistors, ndi masensa, chifukwa cha mphamvu zake za dielectric ndi semiconductor. Imakhala ngati zida zapamwamba za dielectric mu ma capacitor, zomwe zimathandizira kusungirako mphamvu yamagetsi, komanso ngati zinthu zosamva mpweya m'masensa kuti azindikire mpweya ndi zinthu zosasinthika za organic.

Mwachidule, titaniyamu dioxide ndi zinthu zosunthika zomwe zimagwiritsidwa ntchito mosiyanasiyana, kuphatikiza ngati pigment yoyera, UV absorber, photocatalyst, chowonjezera cha chakudya, chothandizira, ndi gawo la electroceramic. Kuphatikizika kwake kwapadera kwazinthu kumapangitsa kuti ikhale yofunikira kwambiri m'mafakitale monga utoto ndi zokutira, zodzoladzola, kukonza zachilengedwe, chakudya, zamagetsi, ndi chisamaliro chaumoyo.