Kasi ni fundo wuli ya vulcanity ya kusazgirapo- upradited high high rabar ya silikoni ya silikoni?

Aug 26, 2025 Lekani uthenga

Kusamuska kwakusazgikira- curted high high high - tempolized silicone rabala kukukwaniskika kwizira mu kusazgirapo kwa hydrosilane kwakusazgikira. Pa nyengo yakutentha, magulu gha silane mu haidrojeni - mafuta gha silikoni na magulu gha vinyl mu methyl vinyl raban rabala wakupangika pasi pa catalysis ya chloroplatinic acid, mwa kupanga cross -linking:

  

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Kuwonjezera pa- kukhomereka kwapachanya -} tempolized silicone raba yingagaŵika mu mitundu ya -}component na mitundu yiŵiri-} kwakukwana. Imoza-} chakukolerana- chakukwera chomene -pafupi na silicone rabar rabala wa silikoni sono ni mtundu wa silikoni rabala chinthu icho chikukura mwaluŵiro chomene. Chifukwa cha kuŵapo kwa vyakukanizga vya sulidiation (nga ni, na vinyake), kukhazikika kwake kwa kusunga kungaŵa kufuma pa myezi 2 kufika pa myezi 12. Chipangizo cha labala icho chikugwiriskirika nchito kuti chilembeke chingasungika mwakukhora kwa myezi yiŵiri, apo chinthu cha labala icho chikupanga chingasungika kwa myezi pafupifupi 12. Nyengo ya kusungirako ya viŵiri-component kusazgirapo - upradited high high - tempolized vulcanized raba la silikoni rabala litali chomene kuluska la rabala yimoza - nambala ya raba. Chiŵelengero cha kusakanizga vigaŵa viŵiri ivi chingaŵa 1:1 panji 100:1.5.

 

Chigaŵa cha raba icho chili na chiŵelengero cha 1:1 chili na raba yakukhazikika, crosslinking ejenti na vulcanization inhibitor, apo chigaŵa cha B chili na labala wa base na platinum catalyst. Mu 100:1.5 raba, vigaŵa vikuru ni labala wa base, wovwiri wa crosslinking na inhibitor, apo chigaŵa cha pachanya ni labala wakukhazikika na wovwiri wakusazgikira wa catalytic.

 

Chimoza mwa viwemi vikuru vya kusazgirapo - curted high high high ricking raba ya silicone ya silicone nchakuti chiŵelengero chake cha kuchepa kwake nchachoko chomene pa nyengo ya ndondomeko ya vulcanization, iyo yikuchitika chifukwa chakuti no-{2}} vinyake vikupangika mu vyakuchitika vya kuchizga. Kweni, pakuti ivyo vikuchitika pa nyengo ya kuchizga vikukhumbikwira kuti munthu wagwiriskirenge ntchito platinum catalyst, vikwenera yayi kukhwaskana na vinthu ivyo vingapangiska kuti munthu waŵe na poizoni para wakugwiliskira ntchito poizoni, nga ni vyakupangika ivyo vili na vinthu nga ni nayitrogeni, phosphorus, na sulfure, vyakupangika na sulfure, vyakupangika na magulu ghakuchimbira, na vinthu vinyake nga ni matini, lead, mercury, na bismuth. Kukamba uneneska, nyengu zinyaki vinthu ivi visazgikiyaku ku vinthu ivi nge vinthu vakukanizga kuti vije ndi umoyu wamampha.