Waa maxay sababta silicone dareere ah ayaa si ballaaran loogu isticmaali karaa meelo kala duwan?

1. Horudhac caag silikoon dareere ah oo leh qaabaynta dheeriga ah

caag silikoon dareere ah oo lagu daray qaabaynta waxay ka kooban tahay vinyl polysiloxane sida polymer aasaasiga ah, polysiloxane leh Si-H bond sida wakiilka iskutallaabta, joogitaanka platina, heerkulka qolka ama kulaylka hoostiisa iskutallaabta isku xidha vulcanization ee fasalka silikon. agabka. Ka duwan caag silikoon dareere ah, qaabaynta dareeraha silikoon habka vulcanization ma soo saaro by-products, yaraynta yar, vulcanization qoto dheer iyo ma daxaloobay ee alaabta xiriirka. Waxay leedahay faa'iidooyinka kala duwanaanta heerkulka ballaaran, caabbinta kiimikaad ee heer sare ah iyo caabbinta cimilada, waxayna si fudud ugu dheggan kartaa meelo kala duwan. Sidaa darteed, marka la barbar dhigo silikoonka dareeraha ah ee dareeraha ah, horumarinta qaabaynta dareeraha silikoon waa dhakhso. Waqtigan xaadirka ah, aad iyo aad ayaa loogu isticmaalaa qalabka elektaroonigga ah, mishiinnada, dhismaha, caafimaadka, baabuurta iyo qaybaha kale.

2.Qaybaha ugu muhiimsan

Saldhig Polymer

Labadan polysiloxane toosan ee soo socda oo ay ku jiraan vinyl ayaa loo isticmaalaa sidii polymers-ka saldhigga loogu daro silikoon dareere ah. Qaybinta miisaankooda kelliku waa ballaadhan yahay, guud ahaan kumannaan ilaa 100,000-200,000. polymer-ka ugu badan ee loo isticmaalo silikoonka dareeraha ah ee lagu daro waa α,ω -divinylpolydimethylsiloxane. Waxaa la ogaaday in miisaanka molecular iyo content vinyl ee polymers aasaasiga ah ay bedeli karaan sifooyinka silikoon dareere ah.

wakiilka iskutallaabta

Wakiilka isku dhafka ah ee loo isticmaalo in lagu daro silikoon dareere ah waa polysiloxane organic ka kooban in ka badan 3 Si-H bonds ee molecule, sida methyl-hydropolysiloxane toosan oo ka kooban kooxda Si-H, giraanta methyl-hydropolysiloxane iyo MQ resin ka kooban Si-H kooxda. Inta badan la isticmaalo waa methylhydropolysiloxane toosan ee qaabka soo socda. Waxaa la ogaaday in sifooyinka farsamada ee jel silica la bedeli karo iyadoo la beddelayo nuxurka hydrogen ama qaabka wakiilka isku xirka. Waxa ay ogaatay in maadada haydaroojiinka ee wakiilka isgoysyada ay u dhiganto xoogga xajinta iyo adkaanta jel silica. Gu Zhuojiang iyo al. la helay saliid silikoon ku jirta hydrogen oo leh qaab dhismeed kala duwan, miisaan kala duwan oo unugyo kala duwan ah iyo waxyaabo kala duwan oo hydrogen ah iyadoo la beddelayo habka isku-dhafka iyo caanaha, oo loo isticmaalo sidii wakiilka iskutallaabta si loo soo saaro oo loogu daro silikoon dareere ah.

kataliyeer

Si loo hagaajiyo waxtarka kicinta ee kicinta, dhismayaasha platinum-vinyl siloxane, dhismooyinka platinum-alkyne iyo dhismooyinka platinum-ka nitrogen-la beddelay ayaa la diyaariyey. Marka lagu daro nooca kicinta, qadarka alaabooyinka silikoonka dareeraha ah ayaa sidoo kale saameyn doona waxqabadka. Waxay ogaatay in kordhinta xoogga saarista platinum-ka ay kor u qaadi karto falcelinta isku-xiran ee u dhexeeya kooxaha methyl oo ay joojiso burburka silsiladda ugu weyn.

Sida kor ku xusan, habka vulcanization ee silikoon dareere ah wax lagu daro dhaqameed waa falcelinta hydrosilylation ee u dhexeeya polymer-ka saldhigga ka kooban vinyl iyo polymer ka kooban hydrosilylation bond. Dareeraha wax lagu daro ee silikoon-dhaqameedka caadiga ah wuxuu u baahan yahay caaryada adag si loo soo saaro badeecada ugu dambeysa, laakiin tiknoolajiyada wax soo saarka dhaqameed waxay leedahay faa'iido darrooyinka qiimaha sare, waqti dheer, iyo wixii la mid ah. Alaabooyinka inta badan laguma dabaqo alaabta elektiroonigga ah. Cilmi-baadhayaashu waxay ogaadeen in silica taxane ah oo leh hanti sare lagu diyaarin karo farsamooyinka cusub ee daaweynta iyadoo la adeegsanayo mercaptan - double bond supplement fluid silicas. Sifooyinkeeda makaanikada ah ee ugu wanaagsan, xasilloonida kulaylka iyo gudbinta iftiinka ayaa ka dhigi kara in lagu dabaqo goobo cusub. Iyada oo ku saleysan falcelinta dammaanadda mercapto-ene ee u dhexeeya mercaptan laalaabtay oo shaqaynaysa polysiloxane iyo vinyl la joojiyay polysiloxane oo leh miisaan unugyo kala duwan, silikoon elastomers oo leh qallafsanaan la hagaajin karo iyo sifooyin farsamo ayaa la diyaariyey. Elastomers-daabacan ayaa muujinaya xallinta daabacaadda sare iyo sifooyin farsamo oo aad u wanaagsan. Kordhinta jebinta elastomers silikoon waxay gaari kartaa 1400%, taas oo aad uga sareysa sida la sheegay UV elastomers daaweynta iyo xitaa ka sarreeya kuwa ugu fidsan ee lagu daaweyn karo elastomers silicone. Kadibna elastomer silicone ultra-fidi kara ayaa lagu dabaqay hydrogels oo lagu sameeyay kaarboon nanotubes si loogu diyaariyo aaladaha elegtarooniga ah ee fidsan. Silikoon la daabici karo oo la farsameyn karo ayaa leh rajooyin codsi oo ballaaran oo ku saabsan robots jilicsan, hawl-wadeennada dabacsan, qalabyada caafimaadka iyo meelo kale.