Tam sim no ntau tus neeg tsis paub ntau txog hydroxypropyl starch ether. Lawv xav tias muaj me me sib txawv ntawm hydroxypropyl starch ether thiab cov hmoov txhuv nplej siab, tab sis nws tsis yog. Tus nqi ntawm hydroxypropyl hmoov ether siv nyob rau hauv coll cov khoom yog qhov tsawg heev, thiab tus ntxiv ntawm polar tuaj yeem ua tiav cov txiaj ntsig zoo.
HydroxyPropyl Starch Ethere ether (HPS) Muaj hmoov zoo, muaj cov khoom siv txau, tsis muaj tshuab yas. Nws yog qhov sib txawv kiag li los ntawm cov hmoov txhuv nplej siab lossis hloov cov hmoov txhuv nplej siab.
Thiab hydroxypropyl methyl cellulose, tseem hu ua hypromellose, hydroxypropyl vixe, thiab kho nws nrog lye ntawm 35-40 ° CY rau ib nrab ib teev, nyem, zuaj lub cellulose, thiab Lub hnub nyoog zoo nyob ntawm 35 ° C, yog li hais tias qhov nruab nrab degree ntawm polymerization ntawm tau alkali fiber ntau nyob hauv cov khoom uas yuav tsum tau. Tso cov alkali mus rau hauv lub hwj txwv ethermicification, ntxiv rau nws ntawm 50-80 ° C rau 5-80 ° C rau 5-80 °, thiab qhov siab tshaj plaws yog hais txog 1.8MPA. Tom qab ntawd ntxiv ib qho tsim nyog ntawm hydrochloric acid thiab oxalic acid rau cov khoom kub ntawm 90 ° thiab thaum kawg ntxuav nws pheej ntxuav nws rov qab dua rau qhov tsis zoo. Dav siv hauv kev tsim kho, kev lag luam tshuaj, xim, kev ua lag luam, sib sau ua yeeb yaj kiab, binder, stabilizer, thickener, thiab lwm yam.
HydroxyPropyl Starch yuav siv tau ua admixature rau cov khoom noj khoom haus cement, gypsum-based khoom thiab txiv qaub calcium cov khoom. Nws muaj kev sib raug zoo nrog lwm lub tsev admixtures. Siv ua ke nrog hydroxypropyl metthylcellulose etherlcellulose ntawm hydmc los ntawm txog 20% -30%)), thiab tuaj yeem ua cov nyhuv tuab, los txhawb sab hauv Cov qauv, nrog kev tawg zoo dua thiab txhim kho cov haujlwm ua haujlwm.
Lub Sijhawm Post: Apr-24-2023