Silicon Dioxide Rau Cov Pigments Corrosive
Hauv cov txheej txheem anticorrosive txheej txheem, silica yog siv los ua thickening, thixotropic, thiab anti deposition additive, thickening, anti settling, ncua kev kawm ntawv thiab lwm yam.Yog cov ciaj thiab lwm yam khoom siv yuav tsum tau sib xyaw kom haum nyob rau hauv lub pob zeb, tsis yog tshwm sim tshwm sim los ntawm kev tshwm sim.Thixotropic nyhuv ntawm silica ua rau txheej tau zoo heev los tiv thaiv cov khoom lag luam thiab thickness ntawm cov txheej txheem txheej txheem, txhim kho kev tsim kho.
Mechanism ntawm kev txiav txim: thaum lub silicon dioxide dispersed hauv cov roj-non-cov roj, cov silanol pawg ntawm cov chaw sib txawv ntawm qhov sib txawv ntawm tus choj los ntawm kev sib raug zoo ntawm hydrogen, thiab qhov muaj pes tsawg leeg ntawm cov qauv no peb ua cov thickening effect. Thaum lub cev muaj kev cuam tshuam los ntawm cov khoom siv dag zog yuam, xws li pib los yog tuav, qhov kev puas tsuaj, kev siv dag zog thiab lub sijhawm tau txiav txim siab los ntawm kev puas tsuaj, qhov tshwm sim yog qhov thickening system ua kua. Yog hais tias lub xeev ruaj khov kho, cov silica ua ke yuav tsum tau sib koom ua ke kom rov qab tau qhov tseem ceeb tshaj qhov qub. Qhov tshwm sim no yog hu ua pseudo plasticity.
Tsab ntawv:
JS-260
Tsis yog. | PHYSICO-CHEMICAL PROPERTIES | Cov ntaub ntawv | TEST HLOOV | Chav |
1 | SiO2 Txheem (qhuav qhuav) | ≥ 98 | HG / T 3062 | % |
2 | Tsos | Dawb, Kua Zoo, Hmoov | Nrig txog kev pom | Tshaj |
3 | Poob hauv qhov kom qhuav (105 ° C, 2 h) | 4-7 | HG / T 3065 | % |
4 | Poob ntawm Ignition (1000 ° C, 2 h) | <> | HG / T 3066 | % |
5 | PH Ntaus | 6.0-7.5 | HG / T 3067 | Tshaj |
6 | Nitrogen adsorption tej qhov chaw deg | 260-280 | GB / T 10722 | m² / g |
7 | Hlau Txheem | ≤ 400 | HG / T 3070 | mg / kg |
8 | DBP roj Nqis Peev Xwm | 2.9-3.5 | HG / T 3072 | cm³ / g |
9 | Soluble Dissociated Ntsev | ≤2 | HG / T 3061 | mg / kg |
Ntim:
20KGS / PP HNAB, 900BAGS PER 40HQ UNPALLETIZED.
Cov Lus Nug:
1. Dab tsi yog daim ntawv thov ntawm hydrophobic silica?
Rheological tus neeg sawv cev: cais rau emulsion, tus neeg sawv cev tiv thaiv kev ruaj ntseg rau xim / coatings / hauv / toners, thickening agent, thixotropic agent, anti-block tus neeg rau pluaj yas;
Puab hmoov qhuav: rau cov tshuaj tua hmoov tua hmoov av thiab hmoov tsho tiv no;
Granula tus neeg saib xyuas thiab cov tshuaj dispersion rau tshuaj tua kab;
Carrier rau kev tawg;
Thickening agent rau Adhesives thiab ntau yam ntawm cov pa roj carbon zoo li epoxy resin;
Tus neeg sawv cev ntawm tus kheej:
Abrasive tus neeg sawv cev rau tshuaj txhuam hniav;
Reinforcing tus neeg sawv cev rau cov organic elastomer organic;
Nrog cov yam ntxwv hydrophobic thiab anti-corrosion, hydrophobic precipitated silica tuaj yeem txhim khu cov cuab yeej insulating rau cables thiab cords. Thiab nrog lub siab, qhov hydrophobic precipitated silica yog dav siv nyob rau hauv cov yas yas, hloov kho yas thiab roj hmab.
2. Dab tsi yog silica dej?
Hydrated Silica (lus Askiv lub npe Hydrated Silica; Silicondioxidehydrate ), tseem hu ua dawb cov roj carbon , tseem hu ua teeb lub silica, lub ntsiab tivthaiv yog silica, dawb amorphous hmoov. Lub teeb xoob, nyob rau hauv cov kab coustic thiab hydrofluoric acid, solububle hauv dej, cov kuab tshuaj thiab cov acids (tshwj tsis yog hydrofluoric acid). Kub, tsis muaj zog, tsis qab, tsis muaj ntxhiab, nrog hluav taws xob zoo hluav taws xob. Nws qhov kev ua haujlwm zoo li cov pa roj carbon, tab sis nws yog xim dawb.Qhov mis nyuj tov molecular thiab cov qauv ntawm lub cev tuaj yeem sawv cev tau los ntawm SiO2 · nH2O, qhov twg cov nH2O yog tam sim no ua ib cov tshuaj hydroxyl. Nws cov qauv macroscopic zoo ib yam li cov roj dub, qhov hais yog kheej kheej, ib qho me me ntawm qhov sib npaug, yog cov qauv zoo li cov qauv (theem ob sab). Chain qauv thiab hydrogen nyiaj quab yuam tsim ib pawg aggregates. Cov khoom qub yog qhov zoo heev, nqus dej noo rau hauv cov huab cua los ua cov ntawv nplua nplua. Cov tshuaj lim dej ntawm cov zis ntawm hydroxyl hais, feem ntau raug rho tawm hydroxyl, uas nyob ib sab hydroxyl, silicon peb (saib daim duab 2.3). Wherein qhov adsorption ntawm pawg neeg sib txawv ntawm pawg neeg uas nyob ib sab yog ib qho tseem ceeb. Cov nyob ntawm cov pawg no ua rau lub ntsej muaj silica muaj zog hydrophilic, deg thaj tsam thiab dispersion muaj peev xwm loj, mechanical zog thiab rhuav kuj yog siab. Kub tsis haum decompose, high rwb thaiv tsev, nrog cov me me, thaj chaw loj, cov yam ntxwv loj. Qhov siv los txhuam cov roj hmab lag luam zoo heev, lub lubricants, cov ntaub ntawv pov tseg. Yuav dilute sodium silicate kua thiab dilute hydrochloric acid reaction system
Cim npe nrov: silicon dioxide rau anti-corrosive pigments Tuam Tshoj, hoobkas, lwm tus lag luam, tuam txhab, yuav, ua nyob rau hauv Tuam Tshoj, ShaXian Sanming
