Hydroxypropylencellulose (HPMC) yog lub cellulose derivative dav siv ua cov binder thiab thinener hauv ntau lub teb suav nrog kev tsim kho, tshuaj thiab khoom noj. HPMC yog dej soluble polymer uas tuaj yeem muab cov txiaj ntsig cov txiaj ntsig zoo li cov nplaum kev lag luam. Hauv tsab xov xwm no, peb sib tham txog lub luag haujlwm ntawm hydroxyprropylardcellulose (HPMC) nyob rau hauv cov pobzeb cov khoom nplaum.
ntsib thawj zaug
Cov khoom nplaum cov khoom siv hluav taws xob yog cov ntaub ntawv polymer siv rau cov vuas sib tov rau cov sib txawv xws li xis xis, pob zeb plasterboard thiab lwm qhov chaw. Pobzeb Adhesives yuav muab faib ua cov khoom nplaum thiab cov nplaum nplaum hauv sab hauv. Organic pobzeb nplaum feem ntau yog raws cov hluavtaws hluavtaws xws li epoxy, thaum acrylic cov nplaum yog ua raws li cov tshuaj txhuam thiab cov tshuaj ntxhia.
HPMC tau dav siv los ua kev ntxiv rau hauv cov nplais classic ua vim nws cov khoom sib luag xws li dej cia, cov khoom siv tuab, thiab rheological cov khoom. Cov khoom no yog qhov tseem ceeb kom ntseeg tau pobzeb cov khoom nplaum tau zoo sib xyaw, txhawb txoj haujlwm zoo thiab txo lub sijhawm kom qhuav. HPMC kuj yuav pab txhawb kom lub zog ntawm cov nplais nplaum, ua rau nws ruaj khov dua.
Dej ceev
Dej khaws cia yog ib qho khoom tseem ceeb kom ntseeg tau pobzeb cov nplaum tsis qhuav sai. HPMC yog ib qho dej txhawb nqa zoo tshaj plaws, nws tuaj yeem khaws tau txog 80% ntawm nws qhov hnyav hauv dej. Cov cuab yeej no kom ntseeg tau tias cov nplaum tseem siv tau rau lub sijhawm ntev dua, muab cov pob zeb ntev dua los tso cov nplais, txawm tias muaj hnub nyoog. Tsis tas li ntawd, HPMC txhim kho cov txheej txheem kho, kom ntseeg tau cov nyiaj sib raug zoo thiab txhim kho lub siab.
tuab dua
Lub viscosity ntawm cov nplaum cov nplaum yog ncaj qha cuam tshuam nrog cov tuab ntawm cov sib tov, cuam tshuam yooj yim ntawm kev thov thiab nyiaj txiag lub zog. HPMC yog qhov ua kom tuab heev uas tuaj yeem ua tiav cov viscosities siab txawm tias muaj kev cuam tshuam qis. Yog li, cov vais cov khoom tsim tawm tuaj yeem siv HPMC los tsim cov nplais nplaum uas muaj kev sib xws rau ib qho kev xav tau ntawm daim ntawv thov.
Rheological Khoom
Lub zog rheological ntawm HPMC tuaj yeem txhim kho kev ua haujlwm ntawm cov vuas luaj. Viscosity hloov nrog cov qib ntawm kev thov shear kev ntxhov siab, ib qho cuab yeej hu ua shear thinning. Shear thinning cov yam ntxwv ntws ntawm cov nplais nplaum, ua kom nws yooj yim dua mus rau kis rau phab ntsa thiab cov plag tsev nrog kev siv zog me me. Ib qho ntxiv, HPMC muab txawm faib ntawm cov sib tov, zam kev clumping thiab uneven daim ntawv thov.
Txhim kho txoj hlua khi
Kev ua yeeb yam ntawm cov vile adhesives nyob ntawm txoj kev sib tw ntawm Bondgely: Tus nplaum yuav tsum muaj zog txaus kom ua rau cov npoo av thiab tiv thaiv cov pob zeb kom tawg lossis hloov. HPMC pab txhawb rau cov cuab yeej no los ntawm kev txhim kho qhov zoo ntawm cov nplaum thiab txhim kho nws cov nplaum. HPMC resins tsim cov kev ua tau zoo pobzeb cov khoom nplaum nrog qib siab ntawm cov nyiaj sib koom tes thiab muaj zog ntxiv. Kev siv HPMC pab tiv thaiv cov grout los yog pobzeb nruam thiab ua kom cov vuas luaj li cas ntev kom tiav.
Hauv kev xaus
Hauv kev xaus, HPMC txhim kho cov nplaum organic cov nplaum los ntawm kev muab cov txiaj ntsig zoo, suav nrog cov dej cia, thickening, rheatoral cov khoom thiab txhim kho lub zog. HPMC lub peev xwm los txhim kho kev ua haujlwm, txo lub sijhawm kom qhuav thiab tiv thaiv cov pobzeb cracking tau ua nws qhov tseem ceeb ntawm kev lag luam nplais. Kev siv HPMC hauv kev txhim kho cov vile cov nplaum tuaj yeem txhim kho cov khoom lag luam zoo thaum muab cov kev daws teeb meem ruaj khov uas yog ua haujlwm zoo li kev ua kom zoo nkauj. Tag nrho cov txiaj ntsig no ua pov thawj tias HPMC yog kev ua si-hloov polymer polymer nyob rau hauv lub booming vais nplaum ua lag luam.
Lub sij hawm Post: Jun-21-2023