Yog hais tias fatty alcohols uas muaj 16 los yog ntau dua carbon atoms ib molecule yog siv nyob rau hauv lub synthesis ntawm alkyl polyglycosides, cov khoom uas tshwm sim yog soluble nyob rau hauv dej tsuas yog nyob rau hauv tsawg concentrations, feem ntau DP ntawm 1.2 mus rau 2. Lawv yog hereinafter hu ua dej-insoluble alkyl. Polyglycosides.Ntawm cov alkyl polyglycosides no, cov yam ntxwv tsis muaj polar yog cov tseem ceeb vim yog cov saw ntev alkyl.Cov no tsis yog siv los ua surfactants tab sis feem ntau yog siv los ua emulsifiers hauv cov tshuaj pleev ib ce.
Cov tshuaj tiv thaiv ntawm cov piam thaj nrog dodecanols / tetradecanols feem ntau siv tau rau kev sib txuas ntawm cov dej-insoluble alkyl polyglycosides, xws li cetyl / octadecyl polyglycosides.Acid catalyzed tshua tshwm sim ntawm qhov kub thiab txias, siab, thiab molar ratios ntawm feedstocks. Txawm li cas los xij, vim tias lawv cov solubility tsawg, cov khoom no nyuaj rau kev ua kom zoo dua qub thiab tshuaj dawb li dej-raws li pastes. Nws yog ib qho tseem ceeb los tsim cov khoom uas tsis muaj cov ntsiab lus thiab lub teeb xim ncaj qha tom qab cov kauj ruam cov tshuaj tiv thaiv, yog li tsis txhob muaj kev kho mob ntxiv.
Qhov tseem ceeb tshaj plaws uas tsis xav tau los ntawm cov khoom lag luam yog polyglucose.Nws yog xim daj-xim av thiab ua rau cov xim tsis zoo. Tsis tas li ntawd, lub xub ntiag ntawm ntau ntau ntawm polyglucose ua rau nws nyuaj rau mloog zoo rau cov tshuaj tiv thaiv sib tov los ntawm distillation, vim hais tias polyglucose nyhav decompose sai heev thaum kub nce. Qhov no thaum kawg tseem cuam tshuam cov khoom ua haujlwm.
Txij li thaum tus nqi ntawm polydextrose tsim tau nce ntau nyob ze ntawm qhov kawg ntawm cov tshuaj tiv thaiv, cov tshuaj tiv thaiv txiav tawm ntxov ntxov ntawm li 80% qabzib hloov dua siab tshiab los ntawm kev txo qhov kub thiab qhov nruab nrab ntawm cov catalyst. Txhawm rau kom ntseeg tau tias cov khoom zoo sib xws thiab rov tsim dua tshiab, kev tshuaj xyuas online yog siv los ntsuas qhov kev hloov pauv kom raug. Thaum txiav tawm, cov piam thaj uas tsis muaj kev cuam tshuam yog tam sim no raws li cov khoom raug tshem tawm thiab tuaj yeem raug tshem tawm yooj yim los ntawm kev pom tom ntej. Tom qab tshem tawm cov piam thaj, cov khoom lag luam muaj kwv yees li 1-2q ntawm polydextrose, uas yog emulsified hauv cov tee zoo heev. Los ntawm kev xaiv cov kev pab lim tsim nyog, polydextrose tuaj yeem raug tshem tawm tag nrho hauv qib thib ob pom.
Cov khoom lag luam tsis muaj glycose thiab polydextrose uas muaj 15 mus rau 30% ntawm cov saw ntev (C 16/18) alkyl polyglycosides thiab 85 mus rau 70% ntawm cov cawv muaj roj (C16/18-OH) tau txais los ntawm cov txheej txheem no. Txij li thaum cov khoom muaj qhov siab melting point, nws yog ib txwm ua lag luam raws li cov khoom nyob rau hauv daim ntawv ntawm flakes los yog pellets.
Cov dej cawv ntev ntev tau txais txiaj ntsig zoo vim tias ntau cov tshuaj pleev ib ce muaj cov cawv ntau ntau. Yog li, alkyl polyglycosides tuaj yeem siv ncaj qha ua alkyl polyglycosides / fatty alcohols.
Cov hom dej-insoluble alkyl polyglycosides tsis ntev los no muaj txog 500% alkyl polyglycosides thiab 500% fatty alcohols.Qhov no, ib feem ntawm cov cawv fatty cawv raug tshem tawm los ntawm lub tshuab nqus tsev distillation thiab thermal decomposition yog suppressed los ntawm kev ua kom qhov kub thiab txias nyob rau lub sijhawm. tsawg li tsawg tau. (Daim duab 7) Cov khoom lag luam concentrated no nthuav dav ntau yam kev siv dej-insoluble alkyl polyglycosides.