Isakhiwo esisisiseko seoli ye-silicone

Uphawu lolwakhiwo 1:

iibhondi zeekhemikhali zeSiloxilicone bond (Si-O-Si):ukumelana nokubanda, ukucinezeleka, uxinzelelo oluphantsi lomphunga, ukunganyangeki komzimba / ukunganyangeki kobushushu, ukuxhathisa idangatye, ukumelana ne-oxidation, ukuxhathisa kwe-corona, ukuxhathisa kwe-arc, ukuxhathisa i-irradiation, ukumelana ne-dielectric, ukumelana nemozulu.

Ibhondi ye-silicon yekhabhoni (Si-C):ukumelana nokubanda, ukunyanzeliswa, uxinzelelo lomphunga oluphantsi, i-inert ye-physiological / surface work, i-hydrophobic, ukukhululwa, ukuchithwa.
Ulwakhiwo lubonisa izinto ezimbini: iiseli ezine

Ulwakhiwo lweempawu ezintathu: iqela le-silicon methyl liyimfuneko

I-Methyl silicon carbon bond yeyona nto izinzileyo ye-silicon carbon bond; Ubukho be-silicone methyl bunika iimpawu ezizodwa zeoli ye-silicone; Zonke iintlobo zeoli ye-silicone ziphuma kwioli ye-silicone ye-methyl; Ioli ye-silicone ephuma kuyo ithiywe ngamagama amaqela ngaphandle kwamaqela e-methyl.

Ukuhlelwa kweoli ye-silicon

Ioli ye-silicone enert:esetyenziswayo ngokubanzi ayithathi nxaxheba kwiimpendulo zemichiza, ngakumbi ukusetyenziswa kweempawu zomzimba zeoli ye-silicone, kuneempawu zekhemikhali. Njenge: ioli ye-methyl silicone, ioli ye-phenyl silicone, ioli ye-silicone ye-polyether, ioli ye-silicone ende, ioli ye-silicone ye-trifluoropropyl, ioli ye-silicone ye-ethyl, njl.

Ioli ye-silicone esebenzayo: ineqela elicacileyo elisebenzayo, elidla ngokubandakanyeka kwiikhemikhali ezisetyenziswayo.
Njenge: ioli ye-hydroxysilicone, ioli ye-vinyl ye-silicone, ioli ye-silicone ye-hydrogen, ioli ye-amino silicone, ioli ye-silicone ye-sulfhydryl. Ioli yeSilicone luhlobo olukhethekileyo lolwelo lweoyile enesilicon carbon bond kunye nesilicon bond yesilicon. I-silicon methyl ibonelela ngomsebenzi ongaphezulu, i-hydrophobic, kunye nokukhululwa; isakhiwo se-silicon sinika uzinzo (inert) kunye neempawu ezibalaseleyo zombane.

Intshayelelo yeoli ye-silicone eqhelekileyo
ioli ye-methylsilicone
Ingcaciso:Onke amaqela e-organic kwisakhiwo semolekyuli ngamaqela e-methyl.
Iimbonakalo:ukuzinza okuhle kwe-thermal; idielectric elungileyo; i-hydrophobicity; i-viscosity kunye ne-defamescence. Eyona nto ibalulekileyo yorhwebo, ioli ye-silicone (201, DC200, KF 96, TSF451).
Indlela yokulungiselela:Lungiselela ngokusebenzisa i-equilibrium reaction.
Ukulinganisa amagama kuthetha:i-viscosity isoloko isetyenziselwa ukumela i-polymerization yeoli ye-silicone, i-viscosity isetyenziselwa ukwahlula iimveliso, i-synthesis eqhubekayo ye-viscosity methyl silicone ioli engaphantsi kwe-50mPa.s.
Izixhobo zokulungiselela:I-50mPa.s Ioli ye-Methylsilicone yorhwebo, i-hexamethyldisiloxane (i-agent yentloko), i-macroporous acid cationic resin.
inkqubo flash.
Isixhobo sokulungiselela:ikholamu yokusabela egcwele i-resin, inkqubo ye-vacuum flash.
Inkqubo emfutshane:Xuba ioli ye-silicone ye-methyl kunye ne-arhente yokwahlula ngokomlinganiselo kwikholamu yokusabela, kunye ne-flash ukufumana ioli ye-silicone egqityiweyo.

equlethe ioli ye-silicone ye-hydrogen.

Ioli ye-silicone esebenzayo equlethe i-Si-H bond (KF 99, TSF484)
Iiyunithi ezimbini eziqhelekileyo zolwakhiwo:

Ukulungiswa kwendlela yokulinganisa iasidi:

Eyona nto isetyenziswayo:I-silicon hydrogen yokongeza imathiriyeli ekrwada, izongezo zerabha ye-silicone, iarhente yonyango olungangeni manzi.

Amino ioli ye-silicone
Ingcaciso:ioli ye-silicone esebenzayo equkethe iqela le-amino ye-hydrocarbon.
Iiyunithi zolwakhiwo eziqhelekileyo:

Eyona nto isetyenziswayo:ukugqitywa kwelaphu, i-ejenti yokukhululwa kwe-mold, izithambiso, ukuguqulwa kwezinto eziphilayo.

Ioli ye-silicone yevinyl

Iiyunithi zolwakhiwo eziqhelekileyo:

Ukulungiswa kokusabela kolungelelwaniso:

Sebenzisa:Sebenzisa i-vinyl kwisiseko seglue kunye nokuguqulwa kwezinto eziphilayo.

Ioli yeHydroxysilicon
Ingcaciso:i-polysiloxane.
Indlela yokudibanisa ubunzima obuphezulu bemolekyuli:

Indlela yokwenziwa kobunzima bemolekyuli ephantsi:

Ioli ye-silicone ye-hydroxyl yorhwebo:
107 incamathiso:ioli ephezulu ye-molecular weight hydroxysilicone (i-viscosity ye-1000mPa.s ngasentla), njenge-rubber esekelwe kwi-rubber (kubandakanywa neqela le-phenyl le-adhesive ye-108).
Ioli ye-hydroxyl yeemolekyuli ephantsi:Umxholo we-hydroxyl ongaphezulu kwe-6%, i-arhente yokulawula ehleliweyo, ioli ye-fluorinated hydroxyl yolawulo olucwangcisiweyo lwerubha ye-fluorosilicone.
Uhlobo lomgca:i-viscosity 100mPa.s ~ 1000mPa.s, ehlala isetyenziselwa ukudibanisa ioli ye-silicone elungisiweyo.

Phenyl ioli ye-silicone

Ukusetyenziswa kweoli ye-silicone ye-phenyl:Umxholo ophezulu we-phenyl weoli ye-silicone isetyenziselwa ukushisa okuphezulu kunye neemeko ze-irradiation. Isiqulatho sephenyl esisezantsi se-silicone oyile ukusebenza kobushushu obuphantsi kulungile, sisetyenziselwa iimfuno zokumelana nokubanda. Izinga lokuhlaziya ioli ye-silicone ye-phenyl ibanzi kakhulu ukusuka kwi-1.41 ukuya kwi-1.58, efanelekileyo kwizicelo kunye neemfuno zezinga lokuhlaziya.
Ioli ye-silicone yephenyl ekhethekileyo:

Ioli ye-silicone ye-polyether

Isishwankathelo:Ngomahluko wokusebenza wecandelo lekhonkco le-polyether kunye ne-polyether chain chain, ngokusebenzisa iibhondi zekhemikhali, i-hydrophilic polyether chain segment inika i-hydrophilic yayo, i-polydimethyl siloxane segment yekhonkco inika ukuxinwa okuphantsi komhlaba, kunye nokwakheka kwazo zonke iintlobo zomsebenzi ongaphezulu, ugxininiso lweoli ye-silicone ye-polyethylene. uphando kunye nophuhliso kukuhlolwa kwesicelo, indlela yokudibanisa ngokubanzi, ukuguqulwa kwesakhiwo esifanelekileyo, kwithiyori inokudibanisa iindidi ezingenasiphelo zeoli ye-silicone ye-polyether, ukusuka kwisakhiwo asikwazi ukugqiba ngokupheleleyo ukusebenza kwesicelo sayo, ukuhlolwa kwesicelo kugxininiso lomsebenzi.
Ukusetyenziswa kweoli ye-silicone ye-polyether:i-agent ye-polyurethane foam foaming (L580), i-agent yokulinganisa i-coating (i-BYK 3 prefix), i-surfactant (L-77), i-ejenti yokugqiba ilaphu (i-softener), i-arhente yokukhutshwa kwamanzi, i-antistatic agent, i-agent e-defoaming (i-self-emulsifying type).