SiO2 Rau Silicon Rubber
JS-160 yog khoom cuaj hlau nrog ntau yam khoom, (xws li roj hmab, roj hmab, cov xim silicone rubber, silicone, sealant thiab lwm yam kev lag luam), nws lub luag haujlwm tseem ceeb:
● Txo cov viscosity ntawm cov khoom los txhim kho qhov fluidity ntawm colloids;
● Txhim kho cov roj hmab Ncauj zog, lub zog rhuav tshem, kev nyuab siab, kev nyuab siab thaum tawg;
● Txhim kho cov khoom hnav roj hmab;
● Txhim kho cov khoom kub thiab kev laus ua haujlwm.
 Silicon roj hmab Silica |  SiO2 Rau Silicon Rubber |
Khoom Muag Khoom
Txoj Kev Xeem | Cov khoom | Chav nyob | Ntaus Tus Nqi (Spec Limits) | Cov Tseem Ceeb |
HG / T3065-2008 | Poob rau qhov ziab (2Hrs, 105 ℃ ) 加热 减量 | % | Max.6.0 | 5.15 |
HG / T3066-2008 | Ignition poob lawm 1000 ℃ 灼烧 减量 | % | Max.6.0 | 3.90 |
HG / T3072-2008 | DBP nqus tus nqi DBP leb luam tawm | cm 3 / g | 2.3-2.6 | 2.48 |
HG / T3067-2008 | Tus nqi pH (10% aqueous suspension) pH Qaws | - | 6.0-8.0 | 6.58 |
HG / T3062-2008 | Sio 2 (Qhuav Basis) 二氧化硅 ( 干 基) | % | Min.96 | 98.4 |
HG / T3073-1999 | BET tshwj xeeb thaj tsam BET ntau tshaj | m 2 / g | 140-170 | 148 |
Soluble ntsev (Na 2 SO 4 ) 可溶性 盐 | % | Max.0.5 | 0.25 | |
Cov ntsiab lus ntawm Fe 铁 含量 | Mg / kg | Max.200 | 145 | |
xaus rau kev sib tw | Qhov no pawg khoom yog tsim nyog | |||
Lub Hoobkas:
Cov Lus Nug:
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. Kev kub siab tsis zoo, kev raus dej, nrog 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.
Yog silica zoo?
Qhov tseeb hais tias nws pom nyob rau hauv cov nroj tsuag thiab haus dej, pom zoo tias nws muaj kev ruaj ntseg. Tab sis qhov ntxiv, kev tshawb fawb tau pom tias cov silica peb haus tsis muaj nyob rau hauv peb lub cev; theej, nws yog flushed tawm los ntawm ob lub raum.
Txawm tias ntau qhov kev tshawb fawb ntawm silica tau ua rau cov tsiaj txhu, lawv tau pom tsis muaj qhov sib txuas ntawm silicon dioxide thiab muaj kev pheej hmoo siab mob cancer, hloov kev puas tsuaj, lossis kev tuag. Tsis tas li ntawd, kev tshawb fawb tau pom tias tsis muaj pov thawj tias silicon dioxide tuaj yeem cuam tshuam kev noj qab haus huv, yug me nyuam, los yog lub cev hnyav.
Thaum kawg, Kev Tswj Xyuas Khoom Noj thiab Tshuaj Yeeb (FDA) tau lees paub tias silicon dioxide yog ib qho zaub mov zoo, xws li World Health Organization (WHO) thiab European Food Safety Authority (EFSA).
Raws li cov ntaub ntawv sau ua ke nrog koom haum WHO, tsuas muaj cov teebmeem kev mob nkeeg rau silicon dioxide los ntawm silicon deficiency. Hauv lwm lo lus, vim tsis muaj silicon dioxide yuav ua teeb meem ntau dua li ntau dhau lawm.
Dab tsi yog qhov txawv ntawm amorphous thiab crystalline silica?
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. Silica cov khoom nyob rau ntawm qhov chaw 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. Kev kub siab tsis zoo, kev raus dej, nrog 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: sio2 rau silicon roj hmab Tuam Tshoj, lub Hoobkas, lwm tus neeg, manufacturers, yuav, ua nyob rau hauv Tuam Tshoj, ShaXian Sanming
