Isakhiwo esiyisisekelo samafutha abicah

Isici sesakhiwo 1:

amabhondi amakhemikhali Ibhondi ye-Siloxilicone (Si-O-Si):ukumelana nokubanda, ukucindezelwa, umfutho we-vapor ophansi, i-physiological ininertia / ukumelana nokushisa, ukumelana nelangabi, ukumelana ne-oxidation, ukumelana ne-corona, ukumelana ne-arc, ukumelana ne-irradiation, ukumelana ne-dielectric, ukumelana nesimo sezulu.

Ibhondi ye-Silicon carbon (Si-C):ukumelana nokubanda, ukucindezelwa, ukucindezela komhwamuko ophansi, umsebenzi we-physiological inert / surface, i-hydrophobic, ukukhululwa, ukubola.
Isakhiwo sifaka okubili: izakhiwo zamaseli amane

Isici sesithathu sesakhiwo: iqembu le-silicon methyl libalulekile

I-Methyl silicon carbon bond iyisibopho esizinzile kakhulu se-silicon carbon; Ukuba khona kwe-silicone methyl kunikeza uwoyela we-silicone izakhiwo eziyingqayizivele; Zonke izinhlobo zamafutha abicah ziphuma kuwoyela we-methyl silicone; Uwoyela we-silicone osuselwe kuye uqanjwe ngamaqembu ngaphandle kwamaqembu e-methyl.

Ukuhlukaniswa kwamafutha e-silicon

Amafutha e-silicone anert:esetshenziswayo ngokuvamile ayihlanganyeli ekuphenduleni kwamakhemikhali, ngaphezu kwalokho ukusetshenziswa kwezakhiwo zomzimba zamafutha abicah, kunezakhiwo zamakhemikhali. Okufana nalokhu: uwoyela we-methyl silicone, uwoyela we-phenyl silicone, uwoyela we-silicone we-polyether, uwoyela omude we-alkyl, uwoyela we-silicone we-trifluoropropyl, uwoyela we-silicone ethyl, njll.

Amafutha e-silicone asebenzayo: aneqembu elicacile elisebenzayo, elivame ukubandakanyeka ekuphenduleni kwamakhemikhali asetshenziswayo.
Okufana nalokhu: uwoyela we-hydroxysilicone, uwoyela we-vinyl silicone, uwoyela we-hydrogen silicone, uwoyela we-amino silicone, uwoyela we-sulfihydryl silicone. Amafutha e-Silicone uhlobo olukhethekile lukawoyela oluwuketshezi olune-silicon carbon bond ne-silicon silicon bond. I-silicon methyl inikeza umsebenzi ongaphezulu, i-hydrophobic, nokukhululwa; isakhiwo se-silicon sinikeza ukuzinza (inert) kanye nezakhiwo ezinhle kakhulu zikagesi.

Isingeniso esivamile samafutha e-silicone
amafutha e-methylsilicone
Incazelo:Wonke amaqembu e-organic esakhiweni samangqamuzana angamaqembu e-methyl.
Izici:ukuzinza okuhle kokushisa; i-dielectric enhle; i-hydrophobicity; i-viscosity kanye ne-defamescence. Okubaluleke kakhulu kwezohwebo, amafutha abicah (201, DC200, KF 96, TSF451).
Indlela yokulungiselela:Lungiselela ngokusebenzisa ukusabela kokulingana.
Ukwenziwa kwezinhlamvu kusho:i-viscosity ivame ukusetshenziselwa ukumela i-polymerization yamafutha abicah, i-viscosity isetshenziselwa ukuhlukanisa imikhiqizo, ukuhlanganiswa okuqhubekayo kwamafutha e-viscosity methyl asilicone ngaphansi kwe-50mPa.s.
Izinto zokulungiselela:I-50mPa.s Amafutha e-Methylsilicone yezentengiso, i-hexamethyldisiloxane (i-ejenti yekhanda), i-macroporous acid cationic resin.
uhlelo lwe-flash.
Idivayisi yokulungiselela:ikholomu yokusabela egcwele inhlaka, isistimu ye-vacuum flash.
Inqubo emfushane:Hlanganisa uwoyela we-silicone ye-methyl kanye ne-ejenti ehlukanisayo ngokulingana kukholamu yokusabela, bese ubaneka ukuze uthole uwoyela we-silicone oqediwe.

equkethe i-hydrogen silicone oil.

Amafutha e-silicone asebenzayo aqukethe ibhondi ye-Si-H (KF 99, TSF484)
Amayunithi esakhiwo amabili ajwayelekile:

Ukulungiswa ngendlela yebhalansi ye-asidi:

Ukusetshenziswa okuyinhloko:i-silicon hydrogen ukwengeza impahla eluhlaza, izithasiselo zerabha ze-silicone, i-ejenti yokwelapha engangeni manzi.

Amafutha abicah amino
Incazelo:uwoyela we-silicone osebenzayo oqukethe iqembu le-hydrocarbon amino.
Amayunithi esakhiwo ajwayelekile:

Ukusetshenziswa okuyinhloko:ukuqedela indwangu, i-ejenti yokukhululwa kwesikhunta, izimonyo, ukuguqulwa kwezinto eziphilayo.

Amafutha e-silicone ye-vinyl

Amayunithi esakhiwo ajwayelekile:

Ukulungiswa kokusabela kokulingana:

Sebenzisa:Sebenzisa i-vinyl ngeglue eyisisekelo kanye nokuguqulwa kwezinto eziphilayo.

Amafutha e-Hydroxysilicon
Incazelo:i-polysiloxane.
Indlela ye-high-molecular-weight synthesis:

Indlela ye-low molecular weight synthesis:

Amafutha e-silicone e-hydroxyl yezentengiso:
107 ingcina:uwoyela we-hydroxysilicone wamangqamuzana aphezulu (i-viscosity engu-1000mPa.s ngenhla), njengerabha esekelwe enjoloba (kuhlanganise neqembu le-phenyl le-adhesive engu-108).
Uwoyela we-molecule ye-hydroxyl ephansi:okuqukethwe kwe-hydroxyl okungaphezu kuka-6%, i-ejenti yokulawula ehlelekile, i-fluorinated hydroxyl uwoyela wokulawula okuhlelekile kwerabha ye-fluorosilicone.
Uhlobo lomugqa:i-viscosity 100mPa.s~1000mPa.s, evame ukusetshenziselwa ukuhlanganiswa uwoyela we-silicone oguquliwe.

Phenyl silicone amafutha

Ukusetshenziswa kwe-phenyl silicone oil:Okuqukethwe okuphezulu kwe-phenyl kawoyela we-silicone kusetshenziselwa ukushisa okuphezulu nezimo zokushiswa kwemisebe. Okuqukethwe kwe-phenyl ephansi kawoyela we-silicone ukusebenza kwezinga lokushisa eliphansi kuhle, kusetshenziselwa izidingo zokumelana nokubanda. Izinga le-refractive lamafutha a-silicone e-phenyl libanzi kakhulu ukusuka ku-1.41 kuya ku-1.58, elifanele izinhlelo zokusebenza ezinezidingo zesilinganiso sokuphendula.
Amafutha akhethekile we-phenyl silicone:

Amafutha e-polyether abicah

Uhlolojikelele:ngomehluko wokusebenza kwengxenye yeketango le-polyether nengxenye yeketango le-polyether, ngokusebenzisa izibopho zamakhemikhali, ingxenye ye-hydrophilic polyether chain inikeza ingxenye yayo ye-hydrophilic, i-polydimethyl siloxane chain inika ukungezwani okuphansi kwendawo, kanye nokwakheka kwazo zonke izinhlobo zomsebenzi ongaphezulu, ukugxila kuwoyela we-silicone we-polyethylene. ucwaningo nokuthuthukiswa kuwukuhlola isicelo, indlela yokuhlanganisa jikelele, ukuguqulwa kwesakhiwo esikahle, ngokombono kungahlanganisa izinhlobonhlobo ezingapheli zamafutha abicah we-polyether, kusukela esakhiweni akukwazi ukunquma ngokugcwele ukusebenza kwesicelo sayo, ukuhlolwa kwesicelo kugxile emsebenzini.
Ukusetshenziswa kwamafutha e-polyether silicone:i-ejenti ye-polyurethane Foam Foam (L580), i-ejenti yokulinganisa (isiqalo se-BYK 3), i-surfactant (L-77), i-ejenti yokuqedela indwangu (i-softener), i-ejenti yokukhululwa esekelwe emanzini, i-antistatic, i-ejenti yokukhipha amagwebu (uhlobo lokuzikhandla).