Cov tshuaj lom neeg txhua hnub hydroxypropyl methylcellulose yog cov polymer hluavtaws ua los ntawm cov paj rwb cellulose ntuj los ntawm kev hloov pauv etherification. Cellulose ether yog ib qho derivative ntawm cellulose ntuj. Kev tsim cov cellulose ether txawv ntawm cov polymers hluavtaws. Nws cov khoom siv yooj yim tshaj plaws yog cellulose, ib qho tshuaj polymer ntuj. Vim yog qhov tshwj xeeb ntawm cov qauv cellulose ntuj, cellulose nws tus kheej tsis muaj peev xwm los cuam tshuam nrog cov neeg sawv cev etherification. Txawm li cas los xij, tom qab kev kho mob ntawm tus neeg sawv cev o, cov hydrogen bonds muaj zog ntawm cov saw hlau molecular thiab cov saw hlau raug rhuav tshem, thiab kev tso tawm ntawm pawg hydroxyl ua rau cov alkali cellulose reactive. Tau txais cellulose ether.
Cov tshuaj hydroxypropyl methylcellulose uas yog tshuaj lom neeg txhua hnub yog cov hmoov dawb lossis me ntsis daj, thiab nws tsis muaj ntxhiab, tsis muaj saj thiab tsis muaj tshuaj lom. Ib qho tshuaj uas tuaj yeem tawg sai sai hauv dej txias thiab sib xyaw nrog cov organic, thiab ncav cuag qhov sib xws siab tshaj plaws hauv ob peb feeb los tsim cov tshuaj viscous pob tshab. Cov kua dej muaj kev ua haujlwm ntawm qhov chaw, pob tshab siab, ruaj khov, thiab tsis cuam tshuam los ntawm pH thaum yaj hauv dej. Nws muaj cov teebmeem thickening thiab antifreeze hauv cov tshuaj zawv plaub hau thiab cov tshuaj da dej gels, thiab muaj cov dej khaws cia thiab cov khoom zoo rau cov plaub hau thiab daim tawv nqaij. Nrog rau kev nce siab ntawm cov khoom siv raw, cellulose (antifreeze thickener) siv hauv cov tshuaj ntxhua khaub ncaws, tshuaj zawv plaub hau, tshuaj da dej gel tuaj yeem txo qhov nqi thiab ua tiav cov txiaj ntsig xav tau.
Cov yam ntxwv thiab qhov zoo ntawm cov tshuaj lom neeg txhua hnub dej txias instant cellulose HPMC:
1. Tsis khaus, kub thiab tsis muaj tshuaj lom;
2. Kev ruaj ntseg ntawm tus nqi pH dav dav, uas tuaj yeem ua kom nws ruaj khov hauv qhov ntau ntawm tus nqi pH 3-11;
3. Txhim kho kev mob nkeeg;
4. Ua kom npuas dej ntau ntxiv, ua kom npuas dej ruaj khov, txhim kho kev xav ntawm daim tawv nqaij;
5. Ua kom zoo dua qhov fluidity ntawm lub system.
6. Siv tau yooj yim, muab tso rau hauv dej txias kom sai sai tawg tsis muaj clumping
Lub Scope ntawm daim ntawv thov ntawm cov tshuaj lom neeg txhua hnub cellulose HPMC:
Siv rau hauv cov tshuaj ntxhua khaub ncaws, tshuaj zawv plaub hau, tshuaj ntxuav lub cev, tshuaj ntxuav ntsej muag, tshuaj pleev, tshuaj pleev gel, toner, tshuaj pleev, tshuaj pleev styling, tshuaj txhuam hniav, tshuaj ntxuav qhov ncauj, dej ua si npuas.
Lub luag haujlwm ntawm cov tshuaj lom neeg txhua hnub cellulose HPMC:
Hauv cov ntawv thov kom zoo nkauj, nws feem ntau yog siv rau kev ua kom tuab, ua npuas dej, ruaj khov emulsification, dispersion, adhesion, txhim kho cov khoom tsim zaj duab xis thiab khaws dej ntawm cov tshuaj pleev ib ce, cov khoom siv viscosity siab yog siv rau kev ua kom tuab, cov khoom siv viscosity qis yog siv rau kev ncua dispersion thiab zaj duab xis tsim.
Cov thev naus laus zis cellulose HPMC txhua hnub:
Qhov viscosity ntawm hydroxypropyl methyl fiber uas haum rau kev lag luam tshuaj txhua hnub yog feem ntau 100,000, 150,000, thiab 200,000. Feem ntau, viscosity siab feem ntau yog siv, thiab qhov thickening effect yog qhov zoo tshaj plaws. Raws li koj tus kheej cov mis, qhov ntau ntxiv hauv cov khoom feem ntau yog 1,000. 2 qhov rau 4 qhov ib txhiab.
Cov kev ceev faj
Cov tshuaj hydroxypropyl methylcellulose uas tsis tsim nyog txhua hnub qhia txog qhov tsis pom tseeb, qhov ua rau tuab tsis zoo, ua rau nyias tom qab khaws cia ntev, thiab qee qhov chaw yuav pwm. Yuav kom tsis txhob muaj cellulose los nag thaum siv, yuav tsum tau do ua ntej kom sib xws. Siv.
Lub sijhawm tshaj tawm: Plaub Hlis-14-2023