Iroyin

Ọpọlọpọ awọn oriṣi ti organosilicon lo wa, laarin eyiti awọn aṣoju isọpọ silane ati awọn aṣoju alakọja jẹ iru kanna. O ti wa ni gbogbo soro fun awon ti o ti o kan wa si olubasọrọ pẹlu organosilicon lati ni oye. Kini asopọ ati iyatọ laarin awọn mejeeji?
oluranlowo asopọ silane
O jẹ iru ti ohun alumọni ohun alumọni ti o ni awọn ohun-ini kemikali oriṣiriṣi meji ninu awọn ohun elo rẹ, ti a lo lati mu ilọsiwaju agbara isunmọ gangan laarin awọn polima ati awọn ohun elo aibikita. Eyi le tọka si ilọsiwaju mejeeji ti ifaramọ otitọ ati imudara ti wettability, rheology, ati awọn ohun-ini iṣiṣẹ miiran. Awọn aṣoju idapọmọra le tun ni ipa iyipada lori agbegbe wiwo lati jẹki iyẹfun ala laarin awọn ẹya ara-ara ati awọn ipele aibikita.
Nitorinaa, awọn aṣoju idapọ silane ni lilo pupọ ni awọn ile-iṣẹ bii awọn adhesives, awọn aṣọ ati awọn inki, roba, simẹnti, gilaasi, awọn kebulu, awọn aṣọ, awọn pilasitik, awọn kikun, awọn itọju dada, ati bẹbẹ lọ.

Awọn aṣoju asopọ silane ti o wọpọ pẹlu:
Sulfur ti o ni silane ninu: bis – [3- (triethoxysilane) – propyl] – tetrasulfide, bis – [3- (triethoxysilane) – propyl] – disulfide
Aminosilane: gamma aminopropyltriethoxysilane, N - β - (aminoethyl) - gamma aminopropyltrimethoxysilane.
Vinylsilane: Ethylenetriethoxysilane, Ethylenetrimethoxysilane
Silane iposii: 3-glycidoxypropyltrimethoxysilane

Methacryloyloxysilane: gamma methacryloyloxypropyltrimethoxysilane, gamma methacryloyloxypropyltriisopropoxysilane

Ilana ti iṣe ti oluranlowo silane sisopọ:
Silane crosslinking oluranlowo
Silane ti o ni meji tabi diẹ ẹ sii awọn ẹgbẹ iṣẹ ṣiṣe ohun alumọni le ṣe bi aṣoju asopọ laarin awọn ohun alumọni laini, gbigba awọn ohun elo laini pupọ tabi awọn macromolecules ti o ni irẹwẹsi tabi awọn polima lati ṣopọ ati ọna asopọ si ọna nẹtiwọọki onisẹpo mẹta, igbega tabi laja dida ti covalent tabi ionic bonds laarin awọn ẹwọn polymer.
Aṣoju Crosslinking jẹ paati akọkọ ti paati silikoni rọba silikoni vulcanized yara paati kanṣoṣo, ati pe o jẹ ipilẹ fun ṣiṣe ipinnu ilana ọna asopọ agbelebu ati sisọ orukọ ọja naa.
Ni ibamu si awọn oriṣiriṣi awọn ọja ti ifaseyin condensation, ẹya paati iwọn otutu yara ẹyọkan silikoni rọba vulcanized ni a le pin si awọn oriṣi oriṣiriṣi bii iru deacidification, iru ketoxime, iru adehun, iru deamination, iru deamidation, ati iru deacetylation. Lara wọn, awọn oriṣi mẹta akọkọ jẹ awọn ọja gbogbogbo ti a ṣe lori iwọn nla.

Mu methyltriacetoxysilane crosslinking oluranlowo bi apẹẹrẹ, nitori awọn condensation lenu ọja jije acetic acid, o ni a npe ni deacetylated yara otutu vulcanized roba silikoni.
Ni gbogbogbo, awọn aṣoju ọna asopọ agbelebu ati awọn aṣoju asopọ silane yatọ, ṣugbọn awọn imukuro wa, gẹgẹbi alpha jara silane idapọ awọn aṣoju aṣoju nipasẹ phenylmethyltriethoxysilane, eyiti o jẹ lilo pupọ ni paati ẹyọkan dealcoholized yara otutu silikoni roba vulcanized.

Awọn crosslinkers silane ti o wọpọ pẹlu:

Silane ti o gbẹ: alkyltriethoxyl, methyltrimethoxy
Deacidification iru silane: triacetoxy, propyl triacetoxy silane
Ketoxime Iru silane: Vinyl tributone oxime silane, Methyl tributone oxime silane