Cov qauv yooj yim ntawm cov roj silicone

Cov yam ntxwv zoo 1:

chemical bonds Siloxilicone bond (Si-O-Si):txias tsis kam, compressibility, tsawg vapor siab, physiological ininertia / tshav kub tsis kam, nplaim tsis kam, oxidation kuj, corona kuj, arc kuj, irradiation kuj, dielectric tsis kam, huab cua kuj.

Silicon carbon bond (Si-C):txias tsis kam, compressibility, tsawg vapor siab, physiological inert / deg kev ua si, hydrophobic, tso tawm, defosion.
Cov qauv muaj ob: plaub cell qauv

Cov yam ntxwv yam ntxwv peb: silicon methyl pawg yog indispensable

Methyl silicon carbon daim ntawv cog lus yog qhov ruaj khov tshaj plaws silicon carbon daim ntawv cog lus; Lub xub ntiag ntawm silicone methyl muab cov roj silicone cov khoom tshwj xeeb; Txhua yam ntawm silicone roj yog derivatives ntawm methyl silicone roj; Cov roj silicone derivative muaj npe tom qab pab pawg uas tsis yog pawg methyl.

Silicon roj classification

Inert silicone roj:Hauv kev siv feem ntau tsis koom nrog cov tshuaj tiv thaiv, ntau dua yog siv cov khoom siv lub cev ntawm silicone roj, tsis yog tshuaj lom neeg. Xws li: methyl silicone roj, phenyl silicone roj, polyether silicone roj, ntev alkyl silicone roj, trifluoropropyl silicone roj, ethyl silicone roj, thiab lwm yam.

Reactive silicone roj: muaj ib pab pawg neeg pom tseeb, feem ntau koom nrog cov tshuaj tiv thaiv hauv kev siv.
Xws li: roj hydroxysilicone, vinyl silicone roj, hydrogen silicone roj, amino silicone roj, sulfhydryl silicone roj. Silicone roj yog ib yam tshwj xeeb ntawm cov roj ua kua nrog silicon carbon daim ntawv cog lus thiab silicon silicon daim ntawv cog lus. Silicon methyl muab kev ua haujlwm saum npoo av, hydrophobic, thiab tso tawm; silicon qauv muab kev ruaj ntseg (inert) thiab cov khoom hluav taws xob zoo heev.

Common silicone roj taw qhia
methylsilicone yog'i
Txhais:Txhua pawg organic hauv cov qauv molecular yog methyl pawg.
Nta:zoo thermal stability; zoo dielectric; hydrophobicity; viscosity thiab defamescence. Cov lag luam tseem ceeb tshaj plaws, cov roj silicone (201, DC200, KF 96, TSF451).
Txoj kev npaj:Npaj los ntawm kev siv cov tshuaj tiv thaiv sib npaug.
Characterization txhais tau tias:Lub viscosity feem ntau yog siv los sawv cev rau cov polymerization ntawm silicone roj, viscosity yog siv los ua kom paub qhov txawv ntawm cov khoom, kev nruam synthesis ntawm viscosity methyl silicone roj hauv qab 50mPa.s.
Cov ntaub ntawv npaj:50mPa.s Commercial methylsilicone roj, hexamethyldisiloxane (head agent), macroporous acid cationic resin.
flash system.
Kev npaj ntaus ntawv:ib qho tshuaj tiv thaiv kab uas muaj cov resin, lub tshuab nqus tsev flash.
Cov txheej txheem luv luv:Sib tov cov roj methyl silicone thiab tus neeg sawv cev sib faib ua feem los ntawm cov kab lus tshuaj tiv thaiv, thiab nyem kom tau cov roj silicone tiav.

muaj hydrogen silicone roj.

Reactive silicone roj uas muaj Si-H daim ntawv cog lus (KF 99, TSF484)
Ob qho tib si structural units:

Kev npaj los ntawm acid tshuav nyiaj li cas:

Main siv:silicon hydrogen ntxiv raw khoom, silicone roj hmab additives, waterproof kho tus neeg saib xyuas.

Amino silicone roj
Txhais:ib tug reactive silicone roj uas muaj ib tug hydrocarbon amino pawg.
Common structural units:

Main siv:fabric finishing, pwm tso tus neeg sawv cev, tshuaj pleev ib ce, organic hloov.

Vinyl silicone roj

Common structural units:

Kev npaj cov tshuaj tiv thaiv equilibrium:

Siv:Siv vinyl rau hauv paus kua nplaum thiab hloov kho cov organic.

Hydroxysilicon roj
Txhais:polysiloxane.
High-molecular-weight synthesis method:

Txoj kev uas tsis tshua muaj molecular synthesis:

Kev lag luam hydroxyl silicone roj:
107 daim nplaum:siab molecular hnyav hydroxysilicone roj (viscosity ntawm 1000mPa.s saum toj no), raws li cov roj hmab raws li roj hmab (xws li phenyl pawg ntawm 108 nplaum).
Tsawg molecular hydroxyl roj:Cov ntsiab lus hydroxyl ntau dua 6%, tus neeg saib xyuas kev tswj hwm, fluorinated hydroxyl roj rau kev tswj hwm ntawm fluorosilicone roj hmab.
Hom kab:viscosity 100mPa.s ~ 1000mPa.s, feem ntau siv los tsim cov roj silicone hloov.

Phenyl silicone roj

Kev siv phenyl silicone roj:High phenyl cov ntsiab lus ntawm silicone roj yog siv nyob rau hauv high kub thiab irradiation tej yam kev mob. Tsawg phenyl cov ntsiab lus ntawm silicone roj uas tsis muaj qhov kub thiab txias kev ua tau zoo, siv rau kev ua kom txias. Lub refractive tus nqi ntawm phenyl silicone roj yog dav heev los ntawm 1.41 mus rau 1.58, uas yog haum rau daim ntaub ntawv nrog cov refractive tus nqi yuav tsum tau.
Tshwj xeeb phenyl silicone roj:

Polyether silicone roj

Txheej txheem cej luam:los ntawm kev ua tau zoo ntawm polyether saw segment thiab polyether saw segment, los ntawm cov tshuaj bonds, hydrophilic polyether saw segment muab nws hydrophilic, polydimethyl siloxane saw segment muab tsawg nto nro, thiab tsim ntawm tag nrho cov hom ntawm nto kev ua si, lub hom phiaj ntawm polyethylene silicone roj. kev tshawb fawb thiab kev loj hlob yog daim ntawv thov kev tshuaj ntsuam xyuas, cov txheej txheem synthesis dav dav, kev hloov cov qauv yooj yim, hauv kev tshawb xav tuaj yeem ua kom muaj ntau yam ntawm polyether silicone roj, los ntawm cov qauv tsis tuaj yeem txiav txim siab tag nrho nws daim ntawv thov kev ua tau zoo, kev tshuaj xyuas daim ntawv thov yog lub hom phiaj ntawm kev ua haujlwm.
Kev siv ntawm polyether silicone roj:polyurethane ua npuas ncauj foaming agent (L580), coating leveling agent (BYK 3 prefix), surfactant (L-77), fabric finishing agent (softener), water-based release agent, antistatic agent, defoaming agent (self-emulsifying type).