Silicon Dioxide thiab nws daim ntawv thov

(Silicon Dioxide thiab nws daim ntawv thov)

Ntawm cov tshuaj lom neeg feem ntau hauv cov xwm txheej yog silicon dioxide. Nws muaj nyob rau hauv ntau yam kab mob nyob thiab hauv cov xuab zeb. Nws yog dav siv nyob rau hauv ntau industries. Nws cov ntawv thov suav nrog cov khoom noj thiab tshuaj pleev ib ce.Crystalline silica

Kev ua hauj lwm raug rau respirable crystalline silicon dioxide (RCS) tau pom tias muaj teeb meem rau kev noj qab haus huv, ua rau silicosis. RCS tau pom tias ua rau mob qog noj ntshav. Muaj ntau txoj hauv kev uas cov neeg ua haujlwm tsim kho muaj kev pheej hmoo ntawm kev ua haujlwm raug rau RCS.

Lub Koom Haum Ntiaj Teb Kev Ua Haujlwm (ILO) xav kom muaj kev tswj hwm zoo thiab ntau npaum li cas los tiv thaiv kev ua haujlwm raug rau cov kab mob ua pa ua pa. Qhov no suav nrog kev cob qhia cov neeg ua haujlwm txog kev siv nyab xeeb thiab tu lub tshuab ua pa. Lawv kuj tseem yuav tsum tau mus kuaj mob thiab tshaj tawm cov txiaj ntsig ntawm cov kev tshuaj ntsuam no mus rau Lub Tuam Txhab Muaj Peev Xwm.

Ntau yam khoom muaj xws li tshuaj txhuam hniav, ceramics, xuab zeb thiab ceramics uas muaj crystalline silicon dioxide. Nws tuaj yeem pom hauv dej, tsiaj txhu, thiab pob zeb diamonds. Hauv nws daim ntawv crystalline, silicon dioxide feem ntau pom hauv quartz. Cov ntxhia no yog qhov thib ob feem ntau cov ntxhia hauv lub ntiaj teb crust. Nws yog siv los ua raw khoom rau stoneware ceramics thiab porcelain.

Crystalline silicon dioxide yog ib qho insulator nrog qhov sib txawv loj. Nws tsis yooj yim soluble rau hauv dej. Txawm hais tias silica hmoov av nyob rau hauv cov nyiaj ntau tuaj yeem ua rau silicosis, feem ntau nws tsis yog qhov txaus ntshai rau koj txoj kev noj qab haus huv. Txawm li cas los xij, qhov tshwm sim ntawm silicosis tuaj yeem cuam tshuam los ntawm hom kev ua haujlwm. Cov neeg uas ua haujlwm nrog cov khoom siv sandblasting tej zaum yuav muaj kev pheej hmoo.

Ib txoj kev tshawb fawb tsis ntev los no hauv tebchaws Greece pom tias 86 tus neeg ua haujlwm tsim kho tau raug tshuaj xyuas rau lawv txoj haujlwm pulmonary. Cov no suav nrog cov neeg cog lus thiab cov neeg tsim khoom, hluav taws xob, blasters thiab cov neeg ua haujlwm tshuab. Rau caum-plaub ntawm cov neeg ua haujlwm nyob rau hauv ib txwm muaj, thiab tsib tau kuaj pom muaj kab mob ua haujlwm. Tus so ntawm cov neeg ua haujlwm raug kuaj pom tias muaj kev puas tsuaj loj dua (7.24%)

Cov kws tshawb fawb pom tau tias cov neeg ua haujlwm raug pom muaj ntau ntawm cov pa nqus tau silicon dioxide. Txoj kev tshawb no tseem pom tias cov neeg ua haujlwm hauv av yuav raug cuam tshuam rau RCS ntau dua li cov neeg ua haujlwm sab nraum zoov. Lawv kuj pom tias cov neeg ua haujlwm uas tau raug RCS rau ntau tshaj 15 xyoo muaj feem ntau yuav ua rau mob silicosis.

Txoj kev tshawb no yog lub hauv paus zoo rau kev txhim kho cov kev tswj xyuas kom zoo. Cov neeg ua haujlwm yuav tsum tau muab kev cob qhia ntau zaus hauv kev ua haujlwm nyab xeeb, thiab siv cov cuab yeej tiv thaiv ua pa kom zoo dua.

Amorphous silica

Txawm hais tias qhov tseeb tias silicon dioxide (SiO2) yog ib qho khoom siv ultra-kawg, nws yog siv rau hauv ntau yam khoom noj, nrog rau cov hnub ci vaj huam sib luag thiab cov chips hauv computer. Tsis tas li ntawd, amorphous silicon dioxide (SiNPs) tau pom zoo siv rau hauv cov tshuaj pleev ib ce thiab kev xa tshuaj.

Daim ntawv amorphous ntawm silica yog suav tias yog tsis muaj teeb meem vim nws tsis muaj crystalline silica, uas yog tshuaj lom rau tib neeg. Txawm li cas los xij, kev tsim cov khoom siv nanostructured tsis ntev los no tau ua rau muaj kev txhawj xeeb txog kev nyab xeeb ntawm amorphous SiNPs.

Txhawm rau tshawb xyuas cov txiaj ntsig kev noj qab haus huv ntawm amorphous SiNPs, kev tshawb fawb tsiaj tau ua. Cov khoom siv silica tau muab rau cov nas ntawm cov qib uas nyob rau hauv cov qauv rau kev kuaj nas 'silica kom tsawg. Hauv cov nas, tsis muaj qhov nce ntxiv ntawm Si hauv lub siab thiab tus po tom qab kis tau. Txawm li cas los xij, muaj qhov txo qis ntawm cov cytokines nyob rau hauv daim siab.

Tsis tas li ntawd, cov kws tshawb fawb kuj tau ua ib qho kev tshawb fawb ntawm mesenteric lymph nodes. Txhawm rau tshuaj xyuas cov qauv, lawv siv electron microscopy. Cov silica hais tau ib homogeneous, spherical zoo. Txawm li cas los xij, lawv pom tias cov khoom tsis zoo li zoo ib yam lossis zoo li cov qauv granular.

Cov kev tshawb fawb hauv vitro ua los ntawm cov kws tshawb fawb pom tias qhov loj me me nyob hauv cov neeg muag khoom tau tshaj tawm lub cev txoj kab uas hla. Qhov ntau ntawm qhov loj me me kuj tseem nyob hauv thaj tsam nanosize.

Hmoov tsis zoo, silica particle tsom xam hauv cov chaw kuaj mob feem ntau nyuaj thiab rhiab heev. Cov kev tshawb fawb hauv vitro no tsis muab cov txiaj ntsig zoo. Nws tsis paub yog tias cov khoom tuaj yeem nkag mus rau tib neeg lub cev ntawm lub plab zom mov. Cov kws tshawb fawb tau sau tseg tias muaj ntau yam mob hauv plab hnyuv, xws li pH ib puag ncig, microflora thiab peristaltic txav. Cov xwm txheej no yuav muaj feem cuam tshuam rau kev faib cov khoom thiab lawv cov kev ruaj ntseg.

Tsis tas li ntawd, cov kws tshawb fawb kuj tau kawm txog tib neeg placental qauv. Cov kws tshawb nrhiav pom tias E 551-muaj cov khoom siv tsis muaj kev cuam tshuam rau kev faib cov silica hauv cov placenta. Txawm li cas los xij, pom muaj kev cuam tshuam tsis zoo rau kev ruaj ntseg.

Synthetic silica

Siv cov khoom siv hluavtaws silicon dioxide nanoparticles tau txais kev saib xyuas zoo hauv kev lag luam nanomedicine. Cov nanoparticles no muaj cov ntawv thov hauv kev kho mob, hluav taws xob, thiab kev tsim kho.

Synthetic silicon dioxide tuaj yeem tsim tau siv ntau txoj hauv kev. Nws yog tsim los ntawm silicon thiab oxygen. Silicon dioxide kuj tuaj yeem hydrated los txhim kho nws cov flowability. Koj tuaj yeem ua rau nws pyrogenically. Qhov no ua rau lub teeb, fluffy hmoov. Qhov loj me me feem ntau loj dua 100 nm. Nws yog dav siv los ua zaub mov additive. Nws kuj tseem siv tau los ua cov ntawv ntim zaub mov.

Silicon yog pom nyob rau hauv lub ntiaj teb crust. Nws kuj tuaj yeem pom hauv cov tsiaj thiab nroj tsuag. Hauv kev lag luam khoom noj thiab tshuaj, silicon dioxide yog siv los ua khoom noj khoom haus thiab tshuaj tiv thaiv kab mob. Nws tau siv los ua cov xim pleev xim, tshuaj pleev ib ce, thiab roj hmab. Nws kuj tseem siv tau hauv microelectronics.

Precipitated silicon dioxide tau pom nyob rau hauv nruab nrab ntawm lub xyoo pua 17th. Txawm li cas los xij, kev siv cov khoom siv no tsis tau tsim kom txog thaum xyoo 1920s. Cov khoom siv no tau siv rau cov khoom noj khoom haus, tshuaj pleev xim, tshuaj ua liaj ua teb, roj teeb cais, thiab tshuaj. Nws muaj peev xwm nqus tau siab thiab zoo flowability ua rau nws haum rau ntau daim ntawv thov.

Nws yog ib qho tseem ceeb kom nkag siab tias cov khoom siv hluav taws xob silicon dioxide muaj cov ntsiab lus dej ntau dua li nws cov khoom siv ntuj tsim. Qhov no tuaj yeem pom hauv nws qhov pore ntim. Cov cuab yeej no tseem ceeb heev vim tias nws tuaj yeem ua kom cov dej ntub ntawm cov hmoov. Nws tseem tuaj yeem txhim kho cov flowability ntawm granulation pab. Nws raug nquahu kom siv hydrated silicon dioxide nyob rau hauv kev lag luam chaw.

Nws yog ib qho tseem ceeb kom nco ntsoov tias hydrated silica dioxide tsuas muaj ib qho chaw sab nraud. Cov particle-resin kev sib cuam tshuam cuam tshuam nws txoj kev ruaj ntseg. Nws yog ib qho tseem ceeb los xyuas kom meej tias cov hydrated silicon dioxide khaws cia rau hauv lub thawv kaw kom tsis txhob muaj dej nkag mus rau hauv lub thawv. Nws tseem yog ib qho tseem ceeb kom paub meej tias nws tau ua tiav siv lub ntsej muag plua plav thiab lub tshuab ua pa.

Amorphous silicon dioxide, ib daim ntawv tsis tshua muaj ntawm silica, muaj qhov tshwj xeeb ntawm thaj chaw loj thiab cov haujlwm tshwj xeeb. Nws muaj peev xwm ua gel thiab thicken. Nws muaj nyob rau hauv cov sediments ntawm lub ntiaj teb. Nws yog siv hauv tshuaj pleev ib ce, pleev xim, thiab tshuaj.

Daim ntawv thov zaub mov thiab tshuaj pleev ib ce

Ntawm cov kev siv ntau ntawm silicon dioxide hauv cov khoom noj thiab tshuaj pleev ib ce, muaj ob pawg: Cov tshuaj tiv thaiv kab mob thiab cov khoom ntxiv rau kev ntxhib los mos thiab txee lub neej. Silicon yog ib txwm muaj nyob hauv lub cev thiab hauv cov khoom noj. Txawm li cas los xij, bioavailability ntawm silicon feem ntau qis. Qhov no txhais tau hais tias yuav tsum muaj qhov tshwj xeeb tshwj xeeb. Cov kev qhia tshwj xeeb yuav tsum suav nrog qhov feem pua ​​​​ntawm nanoscale hais, qhov loj me me, thiab cov lus piav qhia tsim nyog.

Silicon dioxide, lub ntuj tsim silicon, muaj nyob rau hauv lub ntiaj teb crust thiab tsiaj, nroj tsuag, dej, thiab lwm yam. Nws kuj muaj nyob rau hauv ib co tib neeg. Nws yog tsuas yog pom nyob rau hauv cov khoom noj ntawm cov nroj tsuag keeb kwm.

Silicon dioxide muaj ntau yam siv hauv kev tsim kho kev lag luam thiab hauv hluav taws xob. Silicon dioxide tseem yog ib qho tseem ceeb hauv kev tswj cov tawv nqaij kev noj qab haus huv thiab pab txhim kho pob qij txha. Silicon yog siv nyob rau hauv ntau yam kev lag luam, nrog rau cov khoom noj, tshuaj pleev ib ce, thiab khoom siv kho mob.

Silicon dioxide raug pom zoo los ntawm FDA. Muaj kev phiv xws li teeb meem digestive thiab kev tsis haum tshuaj. Nws tuaj yeem ua rau muaj teeb meem nrog kev zom zaub mov nyob ntawm seb cov silicon dioxide siab npaum li cas.

Silicon dioxide kuj tseem siv rau hauv cov khoom noj khoom haus los tiv thaiv corrosion. Nws pab kom cov hmoov dawb-ntws thiab txhim kho kev ntxhib los mos thiab txee lub neej ntawm cov khoom noj. Nws tuaj yeem muab ntxiv rau ci hmoov, qab zib, lossis ntsev.

Kev siv cov khoom siv silicon los ntawm cov nroj tsuag uas muaj silicon hauv cov tshuaj ntuj, tshuaj pleev ib ce thiab cov khoom noj khoom haus tau tshwm sim yav dhau los. Cov khoom no tsis muaj ntaub ntawv zoo vim tsis muaj cov ntaub ntawv kev nyab xeeb. Tsis tas li ntawd, qhov kev lees paub niaj hnub tam sim no (ADI) tsis tau teeb tsa.

Silicon dioxide tuaj yeem pom hauv ntau yam khoom noj. Txawm li cas los xij, nws tuaj yeem tuaj ntau yam. Nws muaj nyob rau hauv ob hom: crystalline thiab amorphous. Crystalline silicon yog tsim los ntawm oxidation ntawm minerals nyob rau hauv lub ntiaj teb crust. Amorphous silica tuaj yeem pom nyob rau hauv cov pob zeb ntawm cov dej ntws thiab cov pas dej. Amorphous silica muaj qhov tshwj xeeb ntawm thaj chaw siab thiab tsis soluble hauv dej.

Silicon dioxide feem ntau pom nyob rau hauv dej haus thiab dej. Silicon dioxide yog siv los tiv thaiv cov khoom noj los ntawm kev nqus dej noo thiab ua rau lawv lub neej txee.

Hais txog RBOSCHCO

RBOSCHCO yog ib lub tuam txhab tsim khoom siv tshuaj lom neeg thoob ntiaj teb uas ntseeg siab thiab muaj ntau tshaj 12 xyoo kev paub txog kev muab cov tshuaj lom neeg zoo thiab cov khoom siv Nano. Lub tuam txhab xa tawm mus rau ntau lub tebchaws, xws li Tebchaws Meskas, Canada, Tebchaws Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Cameroon, Uganda, Qaib ntxhw, Mexico, Azerbaijan, Belgium, Cyprus, Czech Republic, Brazil, Chile, Argentina, Dubai, Nyiv, Kauslim Teb, Nyab Laj, Thaib, Malaysia, Indonesia, Australia, Lub Tebchaws Yelemees, Fabkis, Ltalis, Portugal thiab lwm yam. Ua ib lub tuam txhab tsim khoom siv nanotechnology, RBOSCHCO tswj hwm kev ua lag luam. Peb pab neeg ua haujlwm tshaj lij muab cov kev daws teeb meem zoo tshaj plaws los pab txhim kho kev ua haujlwm ntawm ntau yam lag luam, tsim kom muaj nqis, thiab yooj yim daws nrog ntau yam teeb meem. Yog tias koj tab tom nrhiav hmoov SiO2, thov hu rau peb lossis xa email rau: [email protected]

(Silicon Dioxide thiab nws daim ntawv thov)