Wararka

Waxa jira noocyo badan oo organosilicon ah, kuwaas oo ay ka mid yihiin wakiilada isku xidhka silane iyo wakiilada isku xidhka ahi ay isku mid yihiin. Guud ahaan way ku adag tahay kuwa hadda la soo xidhiidhay organosilicon inay fahmaan. Waa maxay xidhiidhka iyo farqiga u dhexeeya labada?
wakiilka isku xirka silane
Waa nooc ka mid ah isku dhafka silikoon organic kaas oo ka kooban laba siyaalood oo kiimiko ah oo kala duwan oo ku jira molecules, loo isticmaalo si loo hagaajiyo xoogga isku xidhka dhabta ah ee u dhexeeya polymers iyo alaabta aan organic. Tani waxay tixraaci kartaa labadaba hagaajinta ku dheggan dhabta ah iyo kobcinta qoynta, rheology, iyo sifooyinka kale ee hawlgalka. Wakiilada isku xidhka ayaa laga yaabaa inay sidoo kale saameyn wax ka beddel ah ku yeeshaan gobolka isdhexgalka si kor loogu qaado lakabka xadka ee u dhexeeya wejiyada organic iyo kuwa aan noolaha ahayn.
Sidaa darteed, wakiilada isku-xidhka silane ayaa si weyn loogu isticmaalaa warshadaha sida koollada, dahaarka iyo khadadka, caagga, shubka, fiberglass, fiilooyinka, dunta, balaastikada, buuxinta, daaweynta dusha, iwm.

Wakiilada isku xirka silane ee caadiga ah waxaa ka mid ah:
Sulfur ka kooban silane: bis - [3- (triethoxysilane) - propyl] - tetrasulfide, bis - [3- (triethoxysilane) - propyl] - disulfide
Aminosilane: gamma aminopropyltriethoxysilane, N - β - (aminoethyl) - gamma aminopropyltrimethoxysilane
Vinylsilane: Ethylenetriethoxysilane, Ethylenetrimethoxysilane
Epoxy silane: 3-glycidoxypropyltrimethoxysilane

Methacryloyloxysilane: gamma methacryloyloxypropyltrimethoxysilane, gamma methacryloyloxypropyltriisopropoxysilane

Habka ficilka ee wakiilka isku xirka silane:
Wakiilka isku xirka Silane
Silane oo ka kooban laba ama in ka badan oo kooxo silikoon shaqaynaysa waxay u dhaqmi karaan sidii wakiilka isku xidhka u dhexeeya molecules toosan, taasoo u oggolaanaysa unugyo toosan oo badan ama macromolecules si khafiif ah u jajaban ama polymers inay isku xidhaan oo ay isku xidhaan qaab-dhismeedka shabakad saddex-geesood ah, kor u qaadida ama dhexdhexaadinta samaynta curaarta isku xidhan ama ionic inta u dhaxaysa silsiladaha polymer.
Wakiilka iskutallaabtu waa qaybta udub-dhexaadka u ah heerkulka qolka kaliya ee caag silikoon ah, waana saldhigga go'aaminta habka isku xidhka iyo kala soocidda alaabta.
Marka loo eego alaabada kala duwan ee falcelinta uumiga, hal qaybood oo ka mid ah heerkulka qolka silikoon vulcanized ayaa loo kala saari karaa noocyo kala duwan sida nooca deacidification, nooca ketoxime, nooca dealcoholization, nooca deamination, nooca deamidation, iyo nooca deacetylation. Waxaa ka mid ah, saddexda nooc ee ugu horreeya waa alaabooyin guud oo lagu soo saaro miisaan ballaaran.

Qaadashada wakiilka iskutallaabta ee methyltriacetoxysilane tusaale ahaan, sababta oo ah badeecada falcelinta uumiga oo ah acetic acid, waxa loo yaqaan heerkulka qolka deacetylated caag silikoon ah.
Guud ahaan, wakiilada iskutallaabta iyo wakiilada isku xidhka silane way kala duwan yihiin, laakiin waxaa jira waxyaabo ka reeban, sida alfa taxane silane isku xidhka wakiilada phenylmethyltriethoxysilane, kuwaas oo si weyn loogu isticmaalay hal qayb oo ka mid ah qolalka heerkulka qolka silikoon vulcanized ah.

Isku xirka silane ee caadiga ah waxaa ka mid ah:

Silane fuuqbaxay: alkyltriethoxyl, methyltrimethoxy
Deacidification nooca silane: triacetoxy, propyl triacetoxy silane
Nooca Ketoxime silane: Vinyl tributone oxime silane, Methyl tributone oxime silane