Hais txog qhov teeb meem Whitening ntawm PVC khoom

Bleaching los ntawm immersion dej. Ntau hom pob tshab PVC cov khoom, thaum raug dej los yog dej vapor rau lub sij hawm ntev, noj ib tug dawb, pos huab zoo li turbid tsos. Cov khoom muag muag muaj zog dua li cov khoom siv tawv. Vim cov dej nkag mus, cov yas thiab cov stabilizer precipitate los ntawm PVC, thiab hydration tshwm sim, tsim hydration precipitate rau ntawm qhov chaw ( cuam tshuam rau pob tshab), txawm tias cov dej saturated tsis yog, cov plasticizer thiab stabilizer tsis tuaj yeem rov qab los ntawm qhov qub, tsuas yog nce ntxiv. qhov kub thiab txias, qhov sib xws ntawm plasticizer thiab stabilizer tau rov qab los, txhawm rau ua pob tshab. Nws tau raug pov thawj tias stabilizers, plasticizers, lubricants, cuam tshuam-resistant modifiers thiab ua AIDS tuaj yeem ua rau qhov tshwm sim no.

Bleaching los ntawm raug tshav ntuj. PVC cov khoom nyob rau sab nraum zoov raug, vim yog kev ua ntawm dej, carbon dioxide, sulfur dioxide thiab lub teeb nyob rau hauv cov huab cua, kuj yuav muaj bleaching tshwm sim. Qhov no muaj feem xyuam rau lub compatibility ntawm lub stabilizer. Nyob rau hauv cov hlau xab npum, benzoate nrog zoo compatibility nrog PVC muaj tsawg bleaching tshaj stearate. Organic tin tsis yog yooj yim los tsim cov tshuaj dawb, sulfur organic tin yog qhov zoo tshaj plaws, ua raws li laurate, maleate. Qhov sib ntxiv ntawm lub teeb stabilizer, phosphite ester thiab kua compound stabilizer tuaj yeem tiv thaiv lossis txo qhov tshwm sim ntawm PVC vim raug tshav ntuj rau qee yam.

Kev ntxhov siab bleaching. Kev nyuaj siab whitening yog hais txog PVC pob tshab tawv khoom nyob rau hauv qhov kev txiav txim ntawm mechanical sab nraud quab yuam, xws li khoov thiab ncab, PVC cov khoom xws li khoov creases, tensile qhov chaw tshwm sim bleaching tshwm sim. Qhov no yuav yog vim muaj kev hloov pauv ntawm cov qauv molecular los ntawm kev quab yuam sab nraud, kev taw qhia ntawm cov saw hlau molecular, kev hloov pauv hauv PVC ntom ntom, thiab qhov sib txawv ntawm qee cov molecules, tsim lub teeb tawg, kom cov khoom PVC tshwm dawb.

Lwm yam albinos. PVC pob tshab khoom ua cov txheej txheem, yog tias siv cov roj nplua nyeem ntau dhau, cov roj nplua nyeem ntau dua yuav ua rau cov khoom pob tshab dawb turbidity tshwm sim, qhov tshwm sim no qee zaum hu ua bleaching. Qhov no bleaching tshwm sim, cov khoom nto yuav feem ntau muaj ib tug ntau pom tseeb waxy tshuaj. Qhov kev daws teeb meem yog txo cov roj nplua nyeem, los yog hloov nrog ntau hom roj nplua nyeem, kom cov mis hauv thiab sab nraud ntawm daim nplaum kom ua tiav qhov sib npaug.