Cov hauv qab no yog cov ncauj lus kom ntxaws ntxaws ntawm tsab xov xwm "synthesis thiab kev ua tau zoo ntawm cov ntaub ntawv uas sinlicone" (Zhangone cov lus xaus ntawm polyether hloov cov roj silicone.
Synthesis txoj kev
Xaiv cov khoom siv Raw:
Npaj los ntawm hydrogilylation cov tshuaj tiv thaiv ntawm hydrogenated Silicone roj (PMHS) thiab allyl polyeters ntawm cov qauv sib txawv (xws li lwm yam), siv platinum catalyst (karstedt catalyst).
Tsim qauv qauv:
Los ntawm kev tswj hwm lub eo / po piv (ethylene oxide / {}}} {} {{{{{{{{4 {lipophilic tshuav nyiaj (HLB qhov tseem ceeb) tau synthesized.
Cov nyhuv ntawm kev polyether ntu ntawm kev ua tau zoo
| Cov yam ntxwv ntawm Polyether Segments | Siv rau Silicone Roj Kev Ua Haujlwm |
| Eo / po piv | O piv → hydrophilicity ↑, dej solubility yog txhim kho; Po piv → Hydrophobicity ↑, cov txiaj ntsig ntawm txo cov npoo nro yog qhov tseem ceeb tshaj plaws. |
| Molecular hnyav | molecular hnyav ↑ → viscosity ↑, tab sis ntau dhau yuav txo cov dej num saum npoo; Luv -} saw saw polyether (xws li n=3-5}) yog yooj yim dua los ua cov txheej txheem molecular. |
| Pab Pawg Kawg | - Au End → ReveE recharity yog txhim kho); -}} ch ₃ → stability yog txhim kho tab sis sib xyaw yog kev txo qis. |
| Grafting txoj kev | Sab saw grafting → zoo dua yooj (haum rau cov tshuaj pleev ib ce); Thaiv grafting → zoo emulsification kev ua tau zoo (haum rau kev lag luam ntxiv). |
Tseem ceeb ua kev tshawb fawb
Cov haujlwm saum npoo:
Thaum eo / po =3}
Emulsification:
Polyether Segments nrog - Oh xaus yog ntau tshaj li cov tshuab autre thiab tuaj yeem tsim emulsions ruaj khov.
Thermal Stability:
Kev Taw qhia ntawm ntu kev sib tw yuav txo qis dua cov thermal stock (}}}}}} 50 degree), tab sis nws yog qhov zoo dua li cov dog dig tsis yog cov dog dig tsis muaj qhov tseeb.
Daim Ntawv Thov Kev Ua Haujlwm Pov Hwm
Cov teb kom hniav zoo nkauj:
Luv - saw} Hom (EO / PO=4}}=4}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
Textile auxilies:
Nruab Nrab - thiab ntev} s saw po hom (EO / PO}
Defoaming Tus Neeg Sawv Cev:
Thaiv Qauv Polyether Silicone Roj tseem tswj hwm siab ua haujlwm siab nyob rau hauv kub acid thiab alkali.
Kev tshawb nrhiav txuas ntxiv
Cov Qauv Kev Ua Haujlwm Zoo:
Qhia cov aminoino lossis epoxy pawg rau ob pab pawg hloov tuaj yeem txhim kho kev ua tiav adsorption ntxiv (siv: line li al., 2020).
Sim hyperbranched polyether kev hloov kho kom txhim kho cov molecular sticys thaiv (patent CN110256689A).
Cov cim thev naus laus zis:
Ftir nthuav qhia cov qib ntawm hydrosilylation cov tshuaj tiv thaiv (tus xeeb ceem peak: 2160 cm⁻¹ si {1} h sib npaug ploj).
NMR Kev Ntsuam Xyuas Cov kab ntawv faib ntawm cov ntu polyether (¹h NMR δ 3.5-3.8 yog EO / Piaj xeeb ntxwv Peak).
Cov kev cov nyom thiab cov kev daws teeb meem:
SOLINEETE SABTSWV yog ib qho yooj yim nqus dej, uas ua rau muaj kev ruaj khov ruaj khov → dehydrating cov neeg sawv cev tuaj yeem ntxiv los yog xaus} Capping tshuab siv tau.
Kev kub siab tshem tawm cov teeb meem → txhim kho los ntawm cov antioxidants (xws li BHT) lossis txo qis pab pawg kho mob.
Jiujiang sib sib zog nqus dej thev naus laus zis Co., Ltd. Kev hloov pauv roj ...} Soluble Silicone Roj nrog kev ua haujlwm ruaj khov, muaj kev ua tau zoo thiab dav thiab dav thiab ntsuas kom zoo thiab. Txais tos tham.
