Vim yog kev ua haujlwm zoo heev ntawm cov organicsilicone roj, nws yog dav siv nyob rau hauv textile softening xov.Nws lub ntsiab ntau yam yog: thawj tiam hydroxyl silicone roj thiab hydrogen silicone roj, lub thib ob tiam amino silicone roj, mus rau peb tiam ntau block silicone roj.Raws li tib neeg qhov kev thov rau kev tuav tau zoo tuaj, cov roj silicone roj tau dhau los ntau xyoo ntawm kev txhim kho.
1.Hydroxyl silicone roj
Lub ntsiab qauv ntawm hydroxyl silicone roj yog linear polymer nrog hydroxyl pawg ntawm ob qho kawg thiab silica silicon ua cov saw tseem ceeb.Txoj kev sib xyaw ua ke yog ua los ntawm hydrolyzing polycondensation ntawm dimethyl dichlorosilane.Vim tias nws lub zog qis qis, polarity tsis muaj zog thiab tsis muaj zog adsorption ntawm substrate nto, cov pa siv hydroxyl silicone roj yuav tsum muaj qhov hnyav molecular kom muaj cov txiaj ntsig zoo.Yog li ntawd, feem ntau hydroxyl silicone roj siv los ua tiavsofteneryog ib tug polymer nrog siab molecular hnyav.Muaj los ntawm qhov tsis zoo uas yog cov roj silicone, vim tias lub zog ntawm lub zog qis thiab cov dej tsis zoo dispersibility, ntau dua ntawm emulsifiers thiab lub tshuab shearing thiab dispersing nrog siab dispersion yog xav tau rau emulsify thiab disperse nws mus rau hauv zoo microemulsions.Tab sis txawm li cas los xij, nws txoj kev laus ruaj khov tseem tsis zoo.Tseem yuav muaj emulsion stratification tshwm sim tom qab lub sij hawm ntev tso.
2.Hydrogen silicone roj
Cov qauv tseem ceeb ntawm hydrogen silicone roj yog polysiloxane nrog silicon-hydrogen daim ntawv cog lus sib npaug sib npaug ntawm pawg ntawm silicon oxygen saw.Cov kev sib xyaw ua ke muaj xws li hydrolytic polycondensation ntawm methyl hydrodichlorosilane thiab lub nplhaib-qhib polymerization ntawm hydrosiloxane nplhaib lub cev.Vim tias qhov ruaj khov ntawm silicon-hydrogen daim ntawv cog lus tsis zoo, nws yooj yim rau dehydrogenate thiab yog li yooj yim rau adsorb nrog pawg polar ntawm cov ntaub ntawv textile.Yog li nws muaj cov cuab yeej adsorptive zoo dua.Nws muaj kev ua haujlwm zoo ntawm cov cellulose fibers thiab protein fibers, thaum tsis zoo rau cov tshuaj fibers.Ib yam li hydroxyl silicone roj, nws cov emulsifying kev ua tau zoo tsis zoo thiab nws cov stability tsis zoo.Yog hais tias cov ntsiab lus hydrogen siab dhau thaum lub sij hawm thov, nws yog ib qho yooj yim uas yuav ua rau lub striped hydrogen cov ntsiab lus siab dhau lawm, uas yog txaus ntshai rau qhov kub thiab txias ib puag ncig thaum teeb tsa.
3.Amino silicone roj
Lub ntsiab qauv ntawmamino silicone roj isa polysiloxane muaj cov amino pawg ntawm ob sab tom qab polymerization los ntawm kev ntxiv cov amino silane coupling tus neeg sawv cev.Lub softness thiab dej dispersibility ntawm polysiloxane tau zoo heev vim qhov zoo adsorption thiab binding muaj peev xwm ntawm cov amino pawg rau ntaub thiab polarity zoo.Tshwj xeeb tshaj yog rau fabrics ntawm cellulose fibers, nws muaj zoo heev daim ntawv thov nyhuv.Los ntawm kev kho tus nqi ammonia, hom amino silane coupling tus neeg sawv cev thiab qhov hnyav molecular ntawm amino silicone roj tuaj yeem hloov kho.Qhov ntawd tuaj yeem npaj cov ntawv thov nplua nuj.Txawm li cas los xij, vim nws cov saw tseem ceeb tseem yog cov qauv siloxane, yog li nws xav tau ntau tus neeg sawv cev emulsifying kom ua tiav cov nyhuv emulsifying zoo dua.Nyob rau tib lub sij hawm, vim hais tias cov amino kev ua ntawm cov amino silicone roj yog siab thiab nws kuj yog nyob rau sab pob txha.Yog li nws yog qhov nyuaj rau tshem tawm nws los ntawm cov ntaub tom qab adsorption.Qhov ntawd yuav nyuaj rau tshem tawm hauv textile dyeing thiab ua tiav cov txheej txheem thaum nws xav tau hloov xim, tshem tawm wrinkles los yog silicone me ntsis.Tsis tas li ntawd qhov tsis kam mus rau cov dej tawv lossis dej alkali ntawm nws cov emulsion yog ob qho tib si tsis muaj zog.
4.Thaiv cov roj silicone
Lub ntsiab qauv ntawm block silicone roj yog tias nyob rau hauv lub ntsiab saw ntawm polysiloxane nws yog embedded, forged thiab polymerized nrog ib co hydrophilic polyether saw ntu.Los ntawm txoj kev thaiv, forging thiab polymerizing nrog amino saw ntu, uas txhim kho hydrophilic kev ua tau zoo thiab emulsifying khoom ntawm siloxane.Los ntawm kev kho qhov sib piv, hom thiab qhov hnyav molecular ntawm peb ntu ntu, tuaj yeem npaj ntau cov khoom.Rau nws zoo dua hydrophilic permeability, nws yog tsim nyog rau cov softening tiav rau cov tshuaj fibers, nrog rau kev ua tau zoo ntawm kev hloov xim thiab tshem tawm.Vim hais tias cov amino pawg belongs rau ammonia, tertiary ammonia thiab txawm quaternary ammonia, nws tsis yooj yim rau daj.Tsis tas li ntawd nws yog ib qho nrov softener hauv kev tshawb fawb hloov kho tam sim no.
Post lub sij hawm: Oct-08-2021