xov xwm

Raws li cov neeg siv khoom loj thib ob ntawm titanium dioxide, kev lag luam plastics yog qhov loj tshaj plaws hauv xyoo tas los no, nrog qhov nruab nrab txhua xyoo kev loj hlob ntawm 6%.Ntawm ntau dua 500 qib titanium dioxide hauv ntiaj teb, ntau dua 50 qib tau mob siab rau cov yas.Daim ntawv thov ntawm titanium dioxide hauv cov khoom yas, ntxiv rau kev siv nws lub zog zais siab, siab achromatic lub zog thiab lwm yam xim xim, nws tuaj yeem txhim kho cov cua sov, lub teeb tsis kam thiab huab cua tsis kam ntawm cov khoom yas, kom cov khoom yas tiv thaiv los ntawm UV teeb.Kev ntxeem tau, txhim kho cov khoom siv kho tshuab thiab hluav taws xob ntawm cov khoom yas.
Txij li cov khoom yas yog tuab dua li cov xim thiab cov inks, nws tsis tas yuav muaj qhov ntim siab ntawm cov xim, ntxiv rau nws muaj lub zog zais siab thiab muaj zog tinting zog, thiab qhov ntau npaum li cas tsuas yog 3% mus rau 5%.Nws yog siv nyob rau hauv yuav luag tag nrho cov thermosetting thiab thermoplastic plastics, xws li polyolefins (feem ntau yog tsawg-density polyethylene), polystyrene, ABS, polyvinyl chloride, thiab lwm yam. Nws tuaj yeem muab tov nrog cov hmoov qhuav los yog nrog cov khoom ntxiv.Cov theem ua kua ntawm cov yas yog sib xyaw, thiab qee qhov yog siv tom qab ua cov titanium dioxide rau hauv masterbatch.

Kev tshuaj xyuas tshwj xeeb ntawm titanium dioxide hauv kev lag luam yas thiab xim masterbatch kev lag luam

Feem ntau ntawm cov titanium dioxide rau cov yas muaj qhov loj me me.Feem ntau, qhov luaj li cas ntawm titanium dioxide rau txheej yog 0.2 ~ 0.4μm, thaum qhov loj me ntawm titanium dioxide rau cov yas yog 0.15 ~ 0.3μm, thiaj li yuav tau txais cov keeb kwm xiav.Feem ntau cov resins nrog rau theem daj lossis cov resins uas yooj yim rau daj muaj cov nyhuv npog.

Titanium dioxide rau cov yas zoo tib yam feem ntau tsis raug kho saum npoo, vim tias titanium dioxide coated nrog cov ntaub ntawv inorganic xws li cov pa hydrated alumina, thaum tus txheeb ze av noo yog 60%, cov adsorption equilibrium dej yog li 1%, thaum cov yas yog squeezed ntawm kub kub. .Thaum lub sij hawm ua, cov evaporation ntawm cov dej yuav ua rau cov pores tshwm rau ntawm cov yas du.Hom titanium dioxide no tsis muaj txheej txheej inorganic feem ntau yuav tsum tau kho cov organic nto (polyol, silane lossis siloxane), vim tias titanium dioxide yog siv rau cov yas.Sib txawv ntawm titanium dioxide rau txheej txheej, cov qub yog ua tiav thiab sib xyaw hauv cov khoom siv qis-polarity los ntawm shearing quab yuam, thiab titanium dioxide tom qab kev kho mob saum npoo av tuaj yeem tawg tau zoo nyob rau hauv qhov tsim nyog cov tshuab shearing quab yuam.

Nrog rau kev nthuav dav txuas ntxiv ntawm daim ntawv thov ntau yam ntawm cov khoom yas, ntau yam khoom yas sab nraud, xws li cov qhov rooj yas thiab qhov rais, cov khoom siv hauv tsev thiab lwm cov khoom yas sab nraum zoov, kuj muaj cov kev xav tau siab rau huab cua tsis kam.Ntxiv nrog rau kev siv rutile titanium dioxide, kev kho deg kuj yuav tsum tau ua.Qhov kev kho saum npoo no feem ntau tsis ntxiv zinc, tsuas yog silicon, aluminium, zirconium, thiab lwm yam ntxiv.Silicon muaj cov nyhuv hydrophilic thiab dehumidifying, uas tuaj yeem tiv thaiv kev tsim ntawm qhov hws vim yog cov dej evaporation thaum cov yas extruded ntawm qhov kub thiab txias, tab sis tus nqi ntawm cov tshuaj kho deg no feem ntau tsis ntau dhau.