Cov ntaub ntawv silicones tsis yog tsuas yog ib qho tseem ceeb ntawm kev lag luam khoom siv tshiab ntawm lub teb chaws kev lag luam tshiab, tab sis kuj yog ib qho khoom siv txhawb nqa tseem ceeb rau lwm cov kev lag luam tshiab.

Nrog rau kev nthuav dav ntawm cov teb thov, qhov muaj peev xwm thov tau ntau heev ua rau silicones yog ib qho ntawm cov khoom siv tshuaj lom neeg nrov tshaj plaws tam sim no.

Feem ntau ntawm kev siv cov silicone hauv tsev yog nyob rau hauv cov teb xws li kev tsim kho, khoom siv hluav taws xob, hluav taws xob thiab lub zog tshiab, kev kho mob, thiab kev saib xyuas tus kheej. Ntawm lawv, tam sim no yog qhov chaw kawg rau kev siv cov silicone, suav txog li 30%.

Ntxiv rau qhov kev loj hlob tas mus li ntawm qhov kev thov rau cov ntaub ntawv silicones hauv cov lag luam ib txwm muaj, kev lag luam txuag hluav taws xob thiab kev tiv thaiv ib puag ncig xws li photovoltaics thiab lub zog tshiab, nrog rau kev txhim kho ntawm cov lag luam tshiab xws li kev tsim kho lub zog hluav taws xob ultra-high thiab ultra-high voltage, cov ntaub ntawv hnav tau ntse, 3D luam ntawv, thiab 5G, txhua yam muab cov ntsiab lus loj hlob tshiab rau kev thov silicones.

Kev Txheeb Xyuas Txog Silicones

Silicones yog ib lo lus dav dav rau silicon organic compounds, uas yog synthesized thiab hydrolyzed los ntawm hlau silicon thiab chloromethane.

Kauj ruam thawj zaug hauv kev tsim cov silicones yog los tsim cov methylchlorosilane, uas tom qab ntawd hydrolyzed kom tau txais monomethyltrichlorosilane, dimethyldichlorosilane, thiab trichlorosilane. Dimethyldichlorosilane yog hom monomer tseem ceeb ntawm cov organic silicon, nrog rau nws cov khoom tseem ceeb yog silicone roj hmab thiab silicone roj.

Tam sim no, lub peev xwm tsim cov silicones uas tau hais hauv Suav teb feem ntau yog hais txog lub peev xwm tsim khoom ntawm methylchlorosilane, thaum cov ntaub ntawv tsim khoom tam sim no yog raws li kev tsim khoom ntawm dimethylsiloxane.

Cov saw hlau lag luam silicones

Cov saw hlau kev lag luam silicone feem ntau muab faib ua plaub qhov txuas: cov khoom siv raw silicone, cov khoom siv silicone monomers, cov khoom siv silicone intermediates, thiab cov khoom siv ua tiav silicone tob. Muaj tsawg dua cov tuam txhab tsim khoom rau cov khoom siv raw, monomers, thiab cov khoom siv nruab nrab, thaum cov txheej txheem ua tiav tob hauv qab muaj ntau yam khoom thiab muaj peev xwm tsim khoom ntau dua.

Cov khoom siv raw ntawm silicone

Cov txheej txheem tsim cov silicones muaj ntau yam khoom siv raw. Cov khoom siv silicones yog cov hmoov silicone industrial, uas tau npaj hauv kev lag luam los ntawm kev txo cov quartz nrog coke hauv lub cub hluav taws xob arc.

Kev tsim cov silicone hauv kev lag luam siv ntau cov hlau nplaum thiab lub zog, thiab ua rau muaj kuab paug rau ib puag ncig. Yog li ntawd, kev muab cov khoom siv silicone hauv kev lag luam ruaj khov thiab zoo tau dhau los ua qhov lav tseem ceeb rau kev tsim cov silicones.

Raws li SAGSI, xyoo 2020, lub peev xwm tsim khoom silicone thoob ntiaj teb yog 6.23 lab tons, thaum Tuam Tshoj lub peev xwm tsim khoom yog 4.82 lab tons, suav txog 77.4%.

Silicon

Silicones monomers thiab intermediates

Cov khoom siv hauv tsev ntawm silicones monomers thiab intermediates suav txog ntau dua 50% ntawm tag nrho thoob ntiaj teb, ua rau nws yog tus muab khoom loj tshaj plaws ntawm silicones monomers thiab intermediates hauv ntiaj teb. Vim yog lub xeev tsis ruaj khov ntawm silicones monomers, cov tuam txhab feem ntau tsim cov monomers rau hauv cov intermediates xws li DMC (dimethylsiloxane) lossis D4 rau kev muag khoom.

Muaj ob peb hom thiab cov lus qhia ntawm silicones monomers thiab intermediates.

Dimethyldichlorosilane yog cov monomer silicones uas siv dav tshaj plaws tam sim no, suav txog ntau dua 90% ntawm tag nrho cov monomer.

Qhov kev nkag mus rau kev lag luam silicones yog siab, uas tau nce mus txog 200,000 tons thiab xav tau tsawg kawg 1.5 billion yuan ntawm kev nqis peev. Qhov kev nkag mus rau kev lag luam siab yuav txhawb nqa qhov sib txawv ntawm kev muaj peev xwm tsim khoom monomer mus rau cov tuam txhab ua lag luam.

Tam sim no, tsuas yog muaj ob peb lub tuam txhab uas muaj kev sib sau ua ke ntawm cov thev naus laus zis txaus thiab ua tiav kev tsim khoom loj, nrog ntau dua 90% ntawm lub peev xwm tsim khoom faib rau ntawm 11 lub tuam txhab saum toj kawg nkaus.

Qhov kev sib sau ua ke ntawm cov peev xwm tsim cov silicones monomer kuj muab qhov chaw sib tham ntau dua rau cov lag luam downstream.

Dichlorodimethylsilane

Hais txog kev muab khoom, ntau lub tuam txhab silicones ua lag luam hauv Suav teb muaj cov haujlwm lossis cov phiaj xwm tshiab. Lub peev xwm tsim khoom tshiab yuav raug tsom mus rau kev tsim khoom txij li xyoo 2022 txog 2023, thiab lub peev xwm tsim khoom ntawm kev lag luam yuav nkag mus rau hauv lub voj voog nthuav dav sai.

Raws li cov ntaub ntawv los ntawm Baichuan Yingfu, cov tuam txhab xws li Hesheng Silicon Industry, Yunnan Energy Investment, thiab Dongyue Silicon Materials yuav nqis peev kwv yees li 1.025 lab tons ntawm cov peev xwm tsim cov silicones xyoo no. Cov tuam txhab xws li New Special Energy, Asia Silicon Industry, thiab Sichuan Yongxiang kuj tab tom nqis peev rau hauv cov peev xwm tsim cov polycrystalline silicon, tsav tsheb nce ntxiv ntawm kev thov silicones kev lag luam.

SAGSI kwv yees tias Tuam Tshoj lub peev xwm tsim cov silicones methyl monomers yuav tshaj 6 lab tons / xyoo los ntawm 2025, suav txog ntau dua 70% ntawm lub peev xwm tsim khoom thoob ntiaj teb ntawm silicones methyl monomers.

Raws li C&EN, Momentive, lub tuam txhab silicones txawv teb chaws uas ua lag luam loj tshaj plaws npaj yuav kaw nws lub peev xwm tsim cov silicones hauv Waterford, New York, ua rau Dow yog tib lub chaw tsim cov khoom siv silicones hauv Tebchaws Meskas.

Lub peev xwm tsim cov silicones monomer thoob ntiaj teb tau hloov mus rau Tuam Tshoj, thiab qhov sib piv ntawm kev lag luam yuav txuas ntxiv mus zoo dua yav tom ntej.

Kev ua cov silicones tob

Cov khoom siv silicones uas ua tiav tob feem ntau muaj nyob rau hauv daim ntawv molecular ntawm RnSiX (4-n), thiab cov khoom ruaj khov ntawm cov saw hlau silicon thiab qhov sib txawv ntawm cov pab pawg ua haujlwm ua rau cov khoom siv silicones uas ua tiav tob muaj cov haujlwm siv nplua nuj. Cov khoom tseem ceeb yog roj hmab silicone thiab roj silicone, suav txog 66% thiab 21% feem.

Tam sim no, kev lag luam ua cov silicones tob tseem nyob rau theem kev loj hlob sai, nrog rau kev lag luam sib cais. Muaj ntau tshaj 3,000 lub tuam txhab ua cov khoom sib sib zog nqus uas tsuas yog koom nrog kev ua cov silicone.

Olivia Hoobkas Raw Khoom Tank

Cov qauv ntawm cov khoom lag luam silicones sib sib zog nqus hauv Suav teb:

Cov tuam txhab silicone txawv teb chaws tsis muaj qhov zoo dua hauv kev tsim cov silicone monomers piv rau cov tuam txhab Suav, thiab feem ntau ntawm cov tuam txhab silicone txawv teb chaws tsom mus rau kev tsim cov khoom lag luam tob tob thiab nthuav dav cov saw hlau kev lag luam.

Cov cai txhawb nqa kev lag luam silicones hauv Suav teb tau maj mam hloov pauv ntawm kev tsim cov monomer mus rau kev ua cov khoom silicones tob, kev tsim cov khoom silicones tshiab, kev nthuav dav ntawm cov teb thov tshiab, thiab kev txhim kho qib kev siv dav dav.

Silica

Cov khoom lag luam silicones muaj nqis ntxiv rau cov khoom lag luam thiab kev siv lag luam ntau dua. Tam sim no, tseem muaj chaw loj rau kev txhim kho kev siv silicones hauv cov lag luam tshiab hauv Suav teb thiab txawv teb chaws.

Silicone

Polycrystalline Silicon