Hauv thaj chaw ntawm organosilicon chemistry, hydrogen- muaj cov roj silicone tau qhuas tias yog "tus huab tais ntawm cov roj silicone ua haujlwm" vim nws cov qauv tshuaj tshwj xeeb thiab kev ua haujlwm zoo heev. Raws li tus neeg saib xyuas kev kho mob zoo heev thiab tshuaj lom neeg nruab nrab, hydrogen- muaj cov roj silicone ua lub luag haujlwm hloov tsis tau hauv ntau qhov chaw xws li kev tsim cov dej tsis zoo, cov khoom siv textile, thiab cov hmoov hloov pauv. Kab lus no yuav muab ib qho kev ntsuam xyuas qhov tob ntawm cov khoom siv tseem ceeb no, pib los ntawm nws cov qauv molecular, kev ua tau zoo, thiab cov xwm txheej ntawm kev thov.
I. Core Structure thiab Reaction Mechanism
Hydrogen-muaj cov roj silicone, tshuaj hu ua polymethylhydrosiloxane, muaj cov qauv molecular uas qee cov methyl pawg ntawm nws cov pob txha siloxane tau hloov los ntawm cov khoom siv hydrogen atoms. Qhov tshwj xeeb Si-H daim ntawv cog lus no ua rau nws muaj tshuaj lom neeg muaj zog heev.
Nyob rau hauv qhov kev txiav txim ntawm lub catalyst (xws li platinum catalyst los yog hnyav hlau ntsev) los yog nyob rau hauv tej yam thermal tej yam kev mob, cov hydrogen atoms nyob rau hauv lub kawg ntawm hydrogen- muaj silicone roj molecules undergo ib tug ntoo khaub lig- cov tshuaj tiv thaiv, tsim ib tug ntom, tawv, thiab check resinous barrier zaj duab xis. Cov yeeb yaj kiab no- ua tus yam ntxwv yog lub hauv paus ntawm lub cev rau nws cov dej- tawm tsam, ya raws- pov thawj, thiab tsis yog - nplaum ua haujlwm.
II. Cov yam ntxwv ntawm cov khoom lag luam thiab cov ntsiab lus muag
1. Kev ua haujlwm siab thiab siab purity:
High-zoo hydrogen- muaj cov roj silicone feem ntau muaj 100% cov khoom xyaw nquag thiab tsis muaj cov kuab tshuaj tsis haum. Nws Si-H cov ntsiab lus (xws li H) feem ntau yog khaws cia nruab nrab ntawm 1.40% thiab 1.75%, ua kom tus ntoo khaub lig nrawm- txuas thaum thov thiab txhim kho kev tsim khoom.
2. Kev tiv thaiv dej zoo heev:
Cov tshuaj kho hydrogen- muaj cov roj silicone zaj duab xis muaj lub zog qis heev. Thaum cov tee dej poob rau ntawm qhov chaw kho, lawv tsim lub kaum ntse ntse hydrophobic, tiv thaiv kev nkag mus rau hauv dej thiab ua tiav cov dej zoo heev - cov khoom tiv thaiv.
3. Flexible Curing Adjustment:
Lub sijhawm kho thiab kub ntawm hydrogen- muaj cov roj silicone yog kho tau zoo heev. Yog tsis muaj catalyst, kho feem ntau ua tiav ntawm 120-150 degree; nrog rau qhov sib ntxiv ntawm cov catalysts tshwj xeeb (xws li zinc octanoate, hlau octanoate, los yog tin catalysts), qhov kev kho ceev tuaj yeem nce siab, txawm tias ncav cuag 170℃hauv 50 vib nas this xwb.
4. Tsis tshua muaj ntau npaum li cas thiab Compatibility:
Hauv ntau daim ntawv thov, tsuas yog 0.2% concentration ntawm hydrogen- muaj cov roj silicone yog xav tau los tsim cov teebmeem tseem ceeb. Nws tseem tuaj yeem diluted nrog hydrocarbon cov kuab tshuaj, acetone, lossis methyl ethyl ketone, ua kom muaj kev sib txawv ntawm cov txheej txheem sib txawv.
III. Ntau -Scenario Daim Ntawv Thov: Kev daws teeb meem kev lag luam Pain Points
1. Cov Khoom Siv Hauv Tsev: Ib "Moisture-Cov Ntaub Ntawv Pov Thawj" rau cov khoom siv gypsum
Kev nqus dej noo thiab deformation ib txwm yog qhov mob tseem ceeb hauv kev tsim cov gypsum boards thiab lwm yam khoom gypsum. Los ntawm kev kho cov gypsum nto nrog hydrogen- muaj cov roj silicone, ntev - cov tshuaj tiv thaiv dej tuaj yeem ua tiav, txo cov dej nqus dej thiab ua kom lub neej ntev ntawm cov tsev.
2.Powder Modification: Txhim kho Flowability thiab tiv thaiv
Agglomeration Hydrogen- muaj cov roj silicone tuaj yeem ua tus neeg sawv cev kho mob zoo rau ntau yam hmoov thiab cov khoom siv granular (xws li cov hmoov tua hluav taws, cov xim, thiab lwm yam). Nws tuaj yeem ua kom lub ntsej muag zoo ib yam, tsis tsuas yog muab dej rau nws - cov khoom tiv thaiv tab sis kuj txhim kho cov dej ntws ntawm cov hmoov, zoo tiv thaiv agglomeration, thiab optimizing cia stability.
3.Fabric Finishing: Ntxuav-Resistant Water-Repellent Protection
Hauv kev ua haujlwm ntawm textile auxiliaries, hydrogen-muaj cov roj silicone feem ntau yog siv ua ke nrog emulsified silicone roj los muab cov ntaub nrog cov dej zoo heev -repellent xav.
Vim yog qhov ua tau ntev ntawm tus ntoo khaub lig- cov yeeb yaj kiab txuas lawv tsim, cov ntaub uas tau kho nrog cov khoom no feem ntau pom muaj kev tiv thaiv zoo dua.
IV. Cov lus pom zoo ua haujlwm nyab xeeb thiab khaws cia:
Txawm hais tias hydrogen - muaj cov roj silicone tseem ceeb tsis yog - lom, yuav tsum tau ceev faj tshwj xeeb thaum siv. Vim tias nws cov reactive Si-H daim ntawv cog lus tso tawm cov pa roj hydrogen thaum sib cuag nrog alkalis, acids, cov ntsev hlau hnyav, lossis thaum cua sov, qhov chaw ua haujlwm yuav tsum zoo -ventilated.
• Cia ib puag ncig: Cov khoom yuav tsum tau muab khaws cia rau hauv lub thawv ntim rau hauv qhov chaw txias qis dua 60 degree, kom deb ntawm cov nplaim taws thiab qhib nplaim taws.
• Cov Lus Qhia Txog Kev Npaj: Thaum diluting nrog cov kuab tshuaj, do maj mam kom txog thaum cov tshuaj yog homogeneous, thiab ua raws li cov txheej txheem kev nyab xeeb ntawm cov khoom hnyav.
