HPMC (hydroxypropyl methylcellulose) yog cov khoom siv hauv tsev tseem ceeb, tshwj xeeb tshaj yog siv dav hauv cov txheej txheem tsim kho xws li pobzeb tso. Nws yog non-ionic cellulose ether tau los ntawm kev hloov kho tshuaj ntawm cov paj rwb ntuj fibers. HPMC ua lub luag haujlwm tseem ceeb hauv cov nplaum nplaum vim nws qhov kev ua tau zoo heev.
1. Thickening nyhuv
HPMC muaj cov khoom thickening zoo, uas tuaj yeem ua rau kom cov viscosity ntawm cov nplais nplaum, ua kom yooj yim rau kev sib kis ntawm qhov chaw tsim kho thiab tswj cov ntawv sib xws. Cov cuab yeej thickening tsis tsuas yog txhim kho kev ua haujlwm ntawm kev tsim kho, tab sis kuj tseem pab tswj lub sijhawm qhib ntev dua thaum tsim kho, uas yog, cov vuas tuaj yeem hloov kho nyob rau hauv txoj hauj lwm rau ib lub sij hawm tom qab daim ntawv thov.
2. Kev tuav dej
Lwm qhov tseem ceeb ntawm HPMC yog kev tuav dej. Thaum siv cov nplais nplaum, ib qho dej yuav tsum tau ua kom ntseeg tau tias cov cement lossis lwm cov ntaub ntawv cementitious tuaj yeem coagulate thiab tawv ib txwm. Yog tias cov dej poob sai dhau lawm, cov khoom siv cementitious tsis tuaj yeem hnov qab tag nrho, ua rau txo qis hauv kev sib txuas. HPMC tuaj yeem tiv thaiv dej tsis zoo, tswj cov dej hauv cov nplaum, thiab muab sijhawm rau cov nplaum kom ruaj khov thiab tsim cov txheej txheem sib txuas.
3. Anti-slip khoom
Hauv cov pobzeb tso, cov cuab yeej tiv thaiv plam yog qhov tseem ceeb heev vim tias cov vuas yog yooj yim rau swb thaum lawv tau nruab rau ntawm phab ntsa lossis ntsug. HPMC tsub kom thixotropy ntawm cov nplaum, kom ntseeg tau tias cov vuas tuaj yeem ruaj khov rau ntawm qhov chaw ntsug yam tsis muaj zawv zawg, yog li txhim kho qhov tseeb ntawm kev tsim kho.
4. Txuas lub sijhawm qhib
Thaum lub sij hawm kev tsim kho, lub sij hawm qhib yog hais txog lub sij hawm lub qhov rais thaum lub sij hawm lub pobzeb nplaum nplaum tseem zoo nplaum tom qab siv. HPMC tuaj yeem txuas lub sijhawm qhib tau zoo, tso cai rau cov neeg ua haujlwm kho thiab tso cov vuas rau lub sijhawm ntev dua, txhim kho qhov yooj yim ntawm kev tsim kho, tshwj xeeb tshaj yog tsim rau kev tsim loj loj lossis kev tsim kho.
5. Txhim kho kev sib raug zoo
HPMC tseem tuaj yeem txhim kho lub zog sib txuas ntawm cov nplais nplaum. Thaum siv los ua ke nrog cov khoom siv tsis zoo xws li cov cement, lub xub ntiag ntawm HPMC tuaj yeem txhim kho cov khoom sib txuas ntawm cov nplaum, kom ntseeg tau tias cov vuas vov ruaj khov thiab tsis poob tawm tom qab kho, thiab ua kom lawv ruaj khov rau lub sijhawm ntev.
6. Txhim kho kev tsim kho kev ua haujlwm
Lubricity ntawm HPMC ua rau cov nplaum yooj yim rau kev thov, tshwj xeeb tshaj yog thaum lub sij hawm loj tso, nws tuaj yeem ua rau daim ntawv thov smoother thiab txo lub cev kev tawm dag zog ntawm cov neeg ua haujlwm tsim kho. Nyob rau tib lub sijhawm, qhov zoo tshaj plaws dispersibility ntawm HPMC tuaj yeem ua rau ntau yam khoom sib npaug sib npaug thaum nplawm, yog li txhim kho qhov sib xws ntawm qhov sib tov.
7. Huab cua tsis kam thiab khov-thaw tsis kam
Vim nws cov huab cua tsis zoo thiab khov-thaw tsis kam, HPMC tuaj yeem ua haujlwm ruaj khov nyob rau hauv cov huab cua sib txawv. Tshwj xeeb tshaj yog nyob rau hauv qhov chaw txias, cov nplais nplaum yuav muaj kev rov ua kom khov-thaw, uas ua rau muaj kev xav tau ntau dua ntawm lawv cov khoom sib txuas. HPMC tuaj yeem pab cov nplaum nplaum tseem tuav lawv cov kev sib raug zoo thiab cov tawv nqaij nyob rau hauv cov xwm txheej no.
Lub luag haujlwm ntawm HPMC hauv cov nplais nplaum nplaum yog ntau yam, suav nrog kev ua kom tuab, dej tuav, txhim kho kev sib raug zoo, tiv thaiv plam thiab ncua sijhawm qhib. Nws yog qhov tseeb vim hais tias ntawm cov khoom zoo heev uas HPMC tau dhau los ua ib qho khoom siv tseem ceeb hauv kev tsim kho, tshwj xeeb tshaj yog hauv cov pobzeb tso. Nws siv tsis tau tsuas yog txhim kho kev tsim kho kom zoo, tab sis kuj ua kom muaj kev ruaj ntseg ntev tom qab tso.
Post lub sij hawm: Oct-08-2024