Txoj moo

Raws li qhov sib txawv wavelengths, ultraviolet rays tau muab faib ua ntus cheeb tsam 190-280nm, nruab nrab nthwv thaj tsam 280-320nm, thiab ntev nthwv thaj tsam 320-400nm.

Cov kev tshawb fawb ntseeg tias nyob rau hauv cov teeb pom kev zoo, lub super-hydrophilicity ntawm TiO2 nto los ntawm qhov hloov ntawm nws cov qauv saum npoo.

Titanium dioxide thiab carbon hmoov tau nias rau hauv ib qho loj thiab coked, rhuab txog 1070-1170K, los tsim cov gaseous titanium tetrachloride.

Txawm hais tias titanium dioxide yog hydrophilic, nws tsis yog hygroscopic heev, thiab hom rutile tseem me dua cov hom anatase.

Txij li ob qho tib si anatase thiab brookite hom titanium dioxide yuav hloov mus ua hom rutile ntawm qhov kub, qhov chaw melting thiab kub taw tes ntawm brookite hom thiab anata...

Kev siv hluav taws xob: Titanium dioxide muaj cov yam ntxwv ntawm lub tshuab hluav taws xob.

Tus txheeb ze tuab: Cov feem ntau siv cov xim dawb, titanium dioxide muaj tsawg tshaj plaws tus kwv tij txheeb ze.

S26 Yog tias kov lub qhov muag, yaug dej kom ntau thiab nrhiav kws kho mob.

Hydrophobic parameter xam siv cov nqi (XlogP): tsis muaj

Nrog kev txhim kho ntawm tib neeg cov kev ua neej nyob thiab kev sib tw ntawm kev sib tw thoob ntiaj teb, kev tshawb nrhiav thiab kev txhim kho kev nyab xeeb thiab ua haujlwm ti...

Txawm li cas los xij, yav dhau los, sunscreens feem ntau yog cov organic sib txuas xws li benzophenones, anthranilones, salicylates, p-aminobenzoic acid, cinnamate, thiab lwm yam.

Vim tias titanium dioxide tuaj yeem ua rau muaj kev cuam tshuam ncaj qha tshav ntuj, thiab nws cov khoom yog qhov ruaj khov, nws muaj peev xwm npog tau zoo, yog tias nws tau txa...