Hydrophobic Colloidal Silica

Hydrophobic Colloidal Silica

Sib piv nrog cov khoom siv silica, hydrophobic silica muaj qhov chaw ua haujlwm siab heev, thiab muaj cov pob tshab thiab kev sib tw hauv cov khoom siv roj hmab. Nws yog qhov tshwj xeeb tshaj yog tsim rau cov xim dawb, xim dawb, pob tshab thiab semi pob zeb roj hmab. Tsis tas li ntawd, tuaj yeem siv los ua xim pleev xim rau ximxoo thiab cwjmem tshwjxeeb, tus neeg sawv cev tivthaiv, tus tuabneeg thawv, thixotropic tus neeg sawvcev, tus sawv cev ntawm txhua lub hnab yas ntawv yas; tshuaj tua kab, tshuaj tua kab; cov ntaub ntawv nplaum thiab cov khoom siv khoom hnav thiab cov tshuaj txhuam hniav txhuam hniav, thiab siv tau rau cov khoom siv high-grade putty series.

Ntau Lawm Discription:

Ntim:

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 lus 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: hydrophobic colloidal silica Tuam Tshoj, lub Hoobkas, cov khoom lag luam, tuam ntxhab, yuav, ua nyob rau hauv Tuam Tshoj, ShaXian Sanming