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Kev soj ntsuam kev paub txog cov roj silicone thiab cov roj uas tsis muaj hydrogen silicone

Silicone roj yog ib hom polysiloxane nrog ntau qib ntawm polymerization saw qauv.Nws yog tsim los ntawm dimethyldichlorosilane los ntawm hydrolysis nrog dej los tsim thawj lub nplhaib polycondensation.Lub nplhaib lub cev yog tawg thiab kho kom tsim tau lub nplhaib qis.Tom qab ntawd lub nplhaib lub cev, lub taub hau sealing tus neeg saib xyuas thiab cov catalyst tau muab tso ua ke rau polycondensation kom tau txais ntau yam sib xyaw nrog ntau qib ntawm polymerization.Tom qab cov teeb meem qis qis raug tshem tawm los ntawm lub tshuab nqus tsev distillation, cov roj silicone tuaj yeem tsim tau.

Feem ntau siv cov roj silicone, cov pawg organic yog tag nrho cov methyl, hu ua methyl silicone roj.Lwm pawg organic kuj tuaj yeem siv los hloov qee pawg methyl txhawm rau txhim kho qee yam khoom ntawm silicone roj thiab siv rau ntau lub hom phiaj.Lwm pawg yog hydrogen, ethyl, phenyl, chlorophenyl, trifluoropropyl, thiab lwm yam. Nyob rau hauv xyoo tas los no, organic hloov silicone roj tau tsim sai heev, thiab muaj ntau cov organic hloov silicone roj nrog cov khoom tshwj xeeb.

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Jiangxi Huahao Chemical Co., Ltd.

Silicone roj feem ntau tsis muaj xim (los yog lub teeb daj), saj tsis qab, tsis muaj tshuaj lom, tsis muaj kuab paug.Silicone roj yog insoluble hauv dej, methanol, glycol thiab - ethoxyethanol.Nws yog miscible nrog benzene, dimethyl ether, methyl ethyl ketone, carbon tetrachloride los yog kerosene.Nws yog me ntsis soluble hauv acetone, dioxane, ethanol thiab cawv.Nws muaj me me vapor siab, siab flash point thiab ignition point, thiab tsis tshua muaj freezing point.Nrog rau qhov sib txawv ntawm cov saw ntu n, qhov hnyav molecular nce thiab cov viscosity kuj nce.Muaj ntau yam viscosities rau kho cov roj silicone, xws li ntawm 0.65 centistokes mus rau lab centistokes.Yog tias tsis tshua muaj viscosity silicone roj yuav tsum tau npaj, acid av nplaum yuav siv tau raws li catalyst thiab polymerized ntawm 180 ℃, los yog sulfuric acid yuav siv tau raws li catalyst thiab polymerized ntawm qhov kub thiab txias los tsim high viscosity silicone roj los yog viscous khoom.

Raws li cov qauv tshuaj, cov roj silicone tuaj yeem muab faib ua methyl silicone roj, ethyl silicone roj, phenyl silicone roj, methyl hydrosilicon roj, methyl phenylsilicone roj, methyl chlorophenyl silicone roj, methyl ethoxy silicone roj, methyl trifluoropyl silicone roj, methyl vinyl silicone roj. roj, methyl hydroxysilicone roj, ethyl hydrosilicon roj, hydroxyhydrosilicone roj, cyanogen silicone roj, roj tsawg hydrosilicone, thiab lwm yam .;los ntawm lub hom phiaj, damping silicone roj yog muaj.Roj, diffusion twj tso kua mis silicone roj, hydraulic roj, insulating roj, tshav kub hloov roj, nres roj, thiab lwm yam.

Silicone roj muaj cov cua kub zoo heev, hluav taws xob rwb thaiv tsev, huab cua tsis kam, hydrophobicity, physiological inertia thiab me me nto nro, ntxiv rau qhov qis viscosity kub coefficient, siab compression kuj) qee hom kuj muaj hluav taws xob tsis kam.

Jiangxi Huahao Tshuaj Co., Ltd. yog nyob rau hauv Xinghuo Industrial Park.Nws tau tsim nyob rau lub Kaum Ib Hlis 2011 thiab npog thaj tsam ntawm ntau tshaj 30 mu.Hauv 2014, theem I Project (4500t / ib cov khoom siv silicone) tau muab tso rau hauv kev ua haujlwm thiab txais.Cov khoom tseem ceeb yog: hydroxy silicone roj, dimethylsilicone roj, tsis tshua muaj hydrogen silicone roj, polyether hloov silicone roj thiab 107 roj hmab.Nyob rau hauv 2017, nws enriched lub downstream organic cov khoom, nce vinyl silicone roj, amino silicone roj thiab silanes, xws li methyltrimethoxysilane, methyltriethoxysilane thiab methylsilicic acid, thiab kuj txhim kho ntau yam ntawm hydrogenated silicone roj, nrog rau ib sab hydrogen nyob rau hauv thaum ntxov theem, thiab. nce kawg hydrogen thiab lwm yam hydrogenated structural khoom.Tam sim no, cov roj kub kub kub uas muaj peev xwm hloov tau methyl silicone roj tau raug kawm.Pib ua haujlwm nyob rau theem III project hauv 2018, cov khoom muaj xws li heptamethicone, polyether hloov silicone roj, silazane, silicon ether, dimethyldiethoxysilane thiab lwm yam khoom.

Silicone Emulsion

Silicone emulsion yog ib daim ntawv ntawm silicone roj.Cov nram qab no yog qhia los ntawm ob yam: silicone roj softener thiab silicone roj emulsion defoamer.

I. silicone roj ntaub softener

Silicone emulsion feem ntau yog siv los ua softener rau silicone roj fabrics.Thawj tiam ntawm silicone fabric finishing agent yog ib tug neeg kho tshuab sib tov ntawm dimethylsilicone roj thiab hydrosilicon roj (thiab nws cov derivatives).Ob tiam ntawm organosilicon ntaub xov xov yog hydroxyl terminated poly ob methyl siloxane emulsion.Nws yog tsim los ntawm emulsion polymerization ntawm yim methyl nplhaib plaub siloxane monomer, dej, emulsifier, catalyst thiab lwm yam raw khoom nyob rau hauv tej yam kev mob.Vim tias polymerization thiab emulsification tau ua tiav hauv ib kauj ruam, nws muaj qhov zoo ntawm cov sijhawm ua haujlwm luv luv, kev ua haujlwm siab, cov khoom siv yooj yim thiab kev ua haujlwm yooj yim.Cov emulsion tau txais yog ruaj khov heev, thiab cov khoom sib xws heev.Lub active polymer (hydroxyl) ntawm ob qho kawg ntawm cov polymer tuaj yeem ua rau muaj kev cuam tshuam ntxiv los ua ib zaj duab xis, uas yog qhov tsim nyog rau kev txhim kho daim ntawv thov cov nyhuv ntawm emulsion, uas tsis txaus rau txhua yam emulsified silicone roj.

Hydroxyl silicone roj emulsion tuaj yeem muab faib ua ntau hom emulsion, xws li cation, anion, nonionic thiab compound ions, raws li qhov sib txawv surfactants siv.

1. cationic hydroxyl silicone roj emulsion

Cov emulsifier siv nyob rau hauv cationic emulsion polymerization feem ntau yog quaternary amine ntsev (octadecyltrimethyl ammonium chloride qhia nyob rau hauv Txawv Teb Chaws Literature), thiab cov catalyst yog ammonium hydroxide.Cationic hydroxyl mis nyuj tuaj yeem siv rau hauv ntau yam textiles tom qab ua tiav.Nws muaj cov yam ntxwv ntawm kev txhim kho ntaub kov, txhim kho ntaub elasticity thiab smoothness.Nws muaj lwm qhov tshwj xeeb zoo: tus neeg saib xyuas dej tsis zoo rau cov ntaub, nws yog sib xws nrog methyl hydrogen silicone roj emulsion, waterproofing thiab waterproof durability.Nws tuaj yeem siv los ua tus neeg saib xyuas dej rau polyester npog canvas thiab tus neeg saib xyuas dej tsis zoo rau polyester daim ntaub.Thiab li ntawd.

2. anionic hydroxyl silicone roj emulsion

Lub anionic hydroxyl mis nyuj yog tus cwj pwm los ntawm nws txoj kev sib raug zoo hauv cov ntaub xov xov, thiab cov emulsion ruaj khov heev.Tshwj xeeb, feem ntau ntawm cov pab cuam hauv textile printing thiab dyeing yog anionic.Yog tias siv cov cationic hydroxy emulsion, nws yog ib qho yooj yim ua rau demulsification thiab bleaching roj, thaum anionic hydroxy emulsion tuaj yeem zam qhov tsis zoo no, yog li nws nrov dua nrog cov neeg siv thiab siv dav.

3. compound ionic hydroxyl silicone roj emulsion

Txawm hais tias cationic hydroxyapatite yog cov ntaub softener zoo heev, cov emulsion no tsis tiv taus cov dej tawv thiab tsis tuaj yeem siv nrog dimethylolyl ob hydroxyurea urea resin.

Txawm hais tias cationic hydroxyapatite yog cov ntaub softener zoo heev, cov emulsion no tsis tiv taus cov dej tawv, thiab tsis tuaj yeem siv rau hauv tib da dej nrog dimethoxylated ob hydroxyvinyl urea resin (2D) resin, catalyst magnesium chloride thiab anionic whitening agent.Tsis tas li ntawd, vim tias tsis muaj kev ruaj ntseg ntawm cov emulsion, silicone polymers tau yooj yim sib cais los ntawm emulsion thiab ntab rau ntawm cov kua dej, feem ntau hu ua "bleaching oil".Yog tias cov cationic thiab non-ionic emulsifiers siv rau hauv emulsion polymerization, qhov tsis txaus ntawm cationic emulsifier rau kev npaj hydroxyl silicone roj emulsion tuaj yeem kov yeej.Cov khoom siv silicone emulsion tuaj yeem tiv taus cov dej tawv, thiab tuaj yeem siv rau hauv tib da dej nrog 2D resin, magnesium chloride thiab whitening agent VBL, thiab muaj qhov kub thiab txias tsis kam.

4. Tsis yog ionic hydroxyl silicone roj emulsion

Nonionic hydroxy mis nyuj muaj qhov hloov tau zoo dua thiab ruaj khov dua li cov kua mis hydroxy cais, yog li ntau lub tebchaws tau siv zog los kawm cov mis nyuj nonionic hydroxy.Piv txwv li, UltrateX FSA, ib yam khoom tshiab ua nyob rau hauv Switzerland, yog ib tug uas tsis yog-ionic emulsion nrog ib tug molecular luj ntawm ntau tshaj 200 txhiab thiab ib tug hydroxyl lub taub hau ntawm ob methylsiloxane.Nws yog ib kauj ruam tom ntej tshaj Dc-1111 anionic hydroxyapatite emulsion hauv Tebchaws Meskas.

5. Organosilicon finishing agent nrog rau lwm pab pawg neeg nquag

Txhawm rau ua kom tau raws li qhov xav tau ntawm kev ua tiav ntawm txhua yam ntawm cov ntaub, txhim kho cov roj los tiv thaiv, tiv thaiv zoo li qub thiab hydrophilic zog ntawm silicone xov ntaub, thiab ua rau cov khoom siv fiber ntau muaj ntau qhov zoo ntawm cov ntaub ntuj, cov neeg ua haujlwm silicone tau kawm txog kev qhia ntawm lwm pab pawg xws li amino pawg, amide pawg, ester pawg, cyano pawg, carboxyl pawg, epoxy pawg, thiab lwm yam. yog haum rau preshrunk thiab mos xov ntawm ntaub plaub;kev taw qhia ntawm amide pab pawg yog tsim rau antifouling xov, thiab cov softness yog zoo heev txhim kho: cov kev taw qhia ntawm cyano pab pawg neeg muaj zoo roj kuj, thiab anti-static nyhuv ntawm cov copolymer ntawm polyoxyethylene ether thiab organosilicon yog zoo;organofluorine hloov organosilicon muaj roj repellency.Anti-pollution, anti-static, dej repellent thiab ntau lwm yam zoo.

Ob.Silicone roj emulsion defoamer.

Silicone roj emulsion defoamer feem ntau yog roj hauv dej (O / W) emulsion, uas yog, dej yog ib ntus tas mus li, roj silicone yog ib ntus tsis tu ncua.Nws yog pre tov nrog silicone roj, emulsifier thiab thickening tus neeg sawv cev, thiab ces maj mam ntxiv dej mus sib tov, rov sib tsoo nyob rau hauv lub colloid zeb kom txog rau thaum lub emulsion xav tau.

Silicone roj emulsion defoamer yog tus neeg saib xyuas defoaming dav siv hauv silicone defoamer.Nws tuaj yeem siv dav ua defoamer hauv aqueous system.Thaum siv, emulsion tuaj yeem ntxiv ncaj qha rau hauv lub tshuab ua npuas dej, thiab cov nyhuv defoaming zoo tuaj yeem tau txais.Txhawm rau txhim kho cov nyhuv defoaming ntawm emulsion thiab qhov tseeb ntawm kev ntsuas, nws yog feem ntau tsis siv ncaj qha ntau tshaj 10% ntawm cov concentrated silicone roj emulsion: ua ntej, nws yog diluted rau 10% los yog tsawg dua nrog dej txias los yog ncaj qha nrog foaming tov.Taboo yuav tsum tau diluted nrog overheated los yog undercooled kua, txwv tsis pub nws yuav ua rau emulsion demulsification.Kev ruaj ntseg ntawm emulsion yuav ua phem dua tom qab dilution, thiab txheej txheej (roj bleaching) tshwm sim tuaj yeem tshwm sim hauv cov txheej txheem cia, uas yog, demulsification.Yog li ntawd, lub diluted emulsion yuav tsum tau siv sai li sai tau.Yog tias tsim nyog, cov thickeners tuaj yeem ntxiv los txhim kho kev ruaj ntseg ntawm emulsion.Rau kev ua haujlwm batch, silicone roj emulsion tuaj yeem muab ntxiv ua ntej lub kaw lus khiav lossis hauv cov khoom siv.Rau kev ua haujlwm tas mus li, silicone roj emulsion yuav tsum tau ntxiv tsis tu ncua lossis cuam tshuam hauv qhov tsim nyog ntawm qhov system.

Nyob rau hauv kev siv emulsion defoamers, qhov kub thiab txias thiab acid thiab alkaline tej yam kev mob ntawm lub foaming system yuav tsum tau muab coj los xav.Vim tias cov roj silicone emulsion yog qhov muag heev, nws cov emulsion yuav demulsified ua ntej, thiab nws yuav ua tsis tau zoo lossis tsis muaj txiaj ntsig.Tus nqi ntawm silicone roj emulsion feem ntau yog 10 mus rau 10Oppm ntawm qhov hnyav ntawm cov kua foaming (raws li silicone roj meter).Tau kawg, kuj tseem muaj tsawg dua 10 ppm thiab ntau dua 100 ppm hauv cov xwm txheej tshwj xeeb.Qhov ntau npaum li cas yog txiav txim siab los ntawm kev sim.

Feem ntau, silicone roj emulsion defoamer feem ntau yog roj hauv dej.Raws li ntau hom roj silicone, silicone roj emulsion defoamer muaj cov hauv qab no:

1. silicone roj emulsion raws li ob methyl silicone roj

Hom defoamer no yog tsim los ntawm cov roj dimethylsilicone, emulsifier thiab dej.Nws tuaj yeem siv dav hauv fermentation, zaub mov, papermaking, fiber ntau, chaw muag tshuaj, hluavtaws cob thiab lwm yam.

2. silicone roj emulsion raws li methyl ethoxy silicone roj

Hom defoamer no yog ua los ntawm methyl ethoxy silicone roj thiab nws cov neeg sawv cev sib xyaw.

3. silicone roj emulsion raws li ethyl silicone roj

Nyob rau hauv xyoo tas los no, organosilicon defoamer tab tom txhim kho ntawm thaiv copolymerization (los yog graft copolymerization) ntawm organosilicon polyether.Hom defoamer no muaj cov yam ntxwv ntawm ob qho tib si organosilicon thiab polyether, yog li lub zog defoaming tau zoo heev;organosilicon polyether copolymer defoamer, tseem hu ua tus kheej emulsifying organosilicon defoamer, yog hydrophilic ethylene oxide saw los yog ethylene oxide propylene oxide chain block (los yog graft) nyob rau hauv lub organosilicon molecular saw, kom cov hydrophobic siloxane ib feem polyether.Raws li ib tug defoamer, xws li ib tug molecule muaj ib tug loj kis coefficient, yuav disperse tusyees nyob rau hauv lub foaming nruab nrab, thiab muaj ib tug siab defoamer efficiency.Nws yog ib hom tshiab ntawm high-efficiency defoamer.Cov nyhuv emulsifying ntawm tus kheej emulsifying silicone roj yam tsis muaj emulsifier yog qhov txaus siab heev rau qee lub tshuab.Nws yog qhov tshwj xeeb tshaj yog tsim rau cov tsis haum rau cov roj silicone roj emulsion thiab cov roj silicone roj emulsion.


Post lub sij hawm: Sep-24-2022