Interfacial zog alkyl polyglycoside derivatives.

Txhawm rau ua tus yam ntxwv ntawm cov khoom sib txuas ntawm alkyl polyglycoside derivatives, nto nro / concentration curves tau sau tseg thiab qhov tseem ceeb micelle concentrations (cmc) thiab cov toj roob hauv pes nro qhov tseem ceeb saum cmc tau txiav txim los ntawm lawv. Lub interfacial nro tawm tsam ob tus qauv tshuaj: octyl dodecanol thiab decane-tau soj ntsuam raws li qhov tsis ntxiv. Cov txiaj ntsig cmc tau los ntawm cov kab nkhaus no tau pom hauv daim duab 8. cov ntaub ntawv sib raug rau C₁₂ alkyl monoglycoside thiab a_{C 12/14}alkyl polyglycoside suav nrog rau kev sib piv. Nws tuaj yeem pom tau tias alkyl polyglycoside glycerol ethers thiab carbonates muaj cov txiaj ntsig cmc siab dua li alkyl polyglycosides ntawm cov saw ntev piv thaum lub cmc qhov tseem ceeb ntawm monobutyl ethers yog qis dua li cov ntawm alkyl polyglycosides.

Kev ntsuas qhov nro interfacial tau ua nrog Kri.iss spinning nco tensiometer. Txhawm rau simulate cov kev ua tau zoo, cov kev ntsuas tau ua nyob rau hauv cov dej tawv (270 ppm Ca : Mg = 5: ll ntawm surfactant concentration ntawm 0.15 g / l thiab ntawm SO Daim duab 9 qhia qhov sib piv ntawm qhov sib cuam tshuam ntawm C₁₂alkyl polyglycoside derivatives tawm tsam octyl dodecanol. Cov C₁₂mono[1]butyl ether muaj qhov siab tshaj plaws ntawm kev sib tshuam thiab yog li qhov kev ua haujlwm qis tshaj plaws thaum lub C₁₂monoglycerol ether yog qhov tseem ceeb ntawm qib C₁₂polybutyl ether. Cov C₁₂alkyl polyglycoside suav nrog rau kev sib piv lus dag nyob rau theem ntawm ob lub xeem alkyl polyglycoside derivatives hais. Zuag qhia tag nrho, qhov cuam tshuam ntawm qhov cuam tshuam rau octyl dodecanol yog qhov siab. Qhov no txhais tau hais tias, rau kev siv tswv yim, nws yog ib qho tseem ceeb kom ntseeg tau tias cov khoom siv surfactant siv muaj kev sib koom ua ke ntawm cov roj polar.

Kev kuaj ua npuas ncauj raws li daim duab 10.Qhov ua npuas ncauj ntawm ntau yam alkyl polyglycoside monoglycerol ethers thiab monocarbonates tau ntsuas los ntawm kev sib piv nrog C₁₂alkyl polyglycoside rau ob qhov dej hardness qhov tseem ceeb hauv qhov tsis muaj roj av. Kev ntsuas tau ua raws li DIN 53 902. Lub C₁₀thiab C₁₂alkyl polyglycoside monoglycerol ethers ua npuas ncauj loj dua li C₁₂alkyl polyglycoside muaj. Ua npuas ncauj ruaj khov yog qhov loj dua nyob rau hauv rooj plaub ntawm C₁₂monoglycerol ether dua li ntawm C₁₀ derivative ntawm 16 ° dH. Cov C₁₄alkyl polyglycoside monoglycerol ether tsis piv nrog C₁₀thiab C₁₂ derivatives nyob rau hauv nws foaming hwj chim thiab, tag nrho, tus nqi phem tshaj C₁₂alkyl polyglycoside muaj. Cov mono-carbonates nrog alkyl saw ntev n ntawm 8 thiab 12 yog qhov txawv ntawm cov npuas dej tsawg heev, raws li xav tau ntawm hydrophobic alkyl polyglycoside derivative.