Daim ntawv thov ntawm hydrogen muaj silicone roj rau platinum dej (platinum vulcanizing tus neeg saib xyuas) feem ntau yog ib qho ntawm cov reactants nyob rau hauv cov tshuaj tiv thaiv, uas undergoes hydrosilylation cov tshuaj tiv thaiv nrog vinyl ob daim ntawv cog lus nyob rau hauv lub xub ntiag ntawm platinum catalyst, yog li ua tiav lub hom phiaj ntawm crosslinking thiab sulfurization. Daim ntawv thov no ua rau cov dej kub platinum muaj ntau yam ntawm daim ntawv thov kev cia siab hauv cov teb xws li organosilicon, silicone roj hmab, thiab silicone xaim.
Nyob rau hauv cov nqe lus ntawm daim ntawv thov zoo, platinum dej (ua ke ntawm hydrogen uas muaj silicone roj thiab platinum catalyst) muaj cov yam ntxwv tseem ceeb xws li tsis tshua muaj sulfurization kub, ceev sulfurization tus nqi, thiab ruaj khov. Cov yam ntxwv no ua rau cov neeg ua haujlwm platinum vulcanizing kom txo tau cov cim ntawm cov khoom siv thaum lub sij hawm vulcanization txheej txheem, txhim kho cov khoom zoo thiab ruaj khov. Tsis tas li ntawd, cov khoom tiav tom qab platinum vulcanizing tus neeg sawv cev vulcanization tsis muaj yellowing thiab siab transparency, ua rau nws tshwj xeeb tshaj yog haum rau zus tau tej cov zaub mov qib thiab qib kho mob qib silicone khoom.
Txawm li cas los xij, dej platinum kuj muaj qee qhov tsis zoo. Ua ntej, platinum, raws li cov hlau tseem ceeb, muaj tus nqi siab, ua rau cov nqi ntau dua rau cov neeg ua haujlwm platinum vulcanizing. Qhov no rau qee qhov txwv tsis pub siv dav ntawm cov neeg ua haujlwm platinum vulcanizing, tshwj xeeb tshaj yog nyob rau hauv cov teb nrog cov nqi nruj. Qhov thib ob, txawm hais tias cov neeg ua haujlwm platinum vulcanizing muaj kev ua tau zoo heev thaum lub sij hawm vulcanization txheej txheem, lawv txoj haujlwm yuav nyuaj thiab yuav tsum tau tswj nruj ntawm cov tshuaj tiv thaiv thiab qhov sib piv kom ntseeg tau tias cov nyhuv vulcanization.
Hauv cov ntsiab lus, daim ntawv thov ntawm hydrogen uas muaj cov roj silicone ntawm cov dej platinum muab cov neeg ua haujlwm siab vulcanizing rau thaj chaw xws li organosilicon thiab silicone roj hmab. Txawm li cas los xij, vim cov nqi thiab kev txwv tsis pub dhau, daim ntawv thov ntawm platinum vulcanizing tus neeg sawv cev hauv qee qhov chaw yuav cuam tshuam rau qee qhov. Nyob rau hauv lub neej yav tom ntej, nrog rau kev nce qib ntawm cov cuab yeej technology thiab txo cov nqi, platinum vulcanizing cov neeg sawv cev yuav tsum tau siv dav hauv ntau lub teb, muab kev txhawb zog rau kev txhim kho cov kev lag luam muaj feem xyuam.
