Hauv cov txheej txheem ntau lawm ntawm cov hmoov putty, ntxiv cov nqi tsim nyog ntawmf Hydroxypropyl Methyl Cellulose (HPMC)tuaj yeem txhim kho nws cov kev ua tau zoo, xws li kev txhim kho rheology ntawm putty hmoov, ntev lub sijhawm tsim kho, thiab nce kev nplaum. HPMC yog ib qho thickener thiab modifier, siv dav hauv cov ntaub ntawv tsim kho, coatings, adhesives thiab lwm yam teb. Rau putty hmoov, ntxiv HPMC tsis yog tsuas yog txhim kho kev ua tau zoo ntawm kev tsim kho, tab sis kuj txhim kho lub peev xwm sau thiab tiv thaiv kev tawg ntawm putty.

 

Lub luag haujlwm ntawm hydroxypropyl methylcellulose
Txhim kho qhov fluidity thiab kev ua haujlwm ntawm kev tsim kho: HPMC muaj cov nyhuv thickening zoo, uas tuaj yeem txhim kho qhov fluidity ntawm cov hmoov putty, ua rau cov hmoov putty sib xws thiab tsis tshua muaj peev xwm ntws thaum thov thiab kho, thiab txhim kho kev ua haujlwm zoo thiab zoo ntawm kev tsim kho.

 

Txhim kho kev nplaum: Kev ntxiv HPMC tuaj yeem txhim kho kev nplaum ntawm cov hmoov putty thiab cov khoom siv hauv paus, zam cov teeb meem xws li cov hmoov putty poob thiab tawg.

 

Txhim kho kev khaws dej: HPMC tuaj yeem ua rau kom cov hmoov putty khaws dej ntau ntxiv, qeeb qeeb qhov dej evaporation, yog li tiv thaiv cov putty kom tsis txhob qhuav thiab tawg, thiab pab cov putty kom tswj tau qhov sib npaug thaum lub sijhawm ziab.

 

Kev tiv thaiv kab nrib pleb zoo dua: Cov qauv polymer ntawm HPMC tuaj yeem txhim kho qhov yooj ywm ntawm cov hmoov putty thiab txo cov kab nrib pleb los ntawm kev tawg, kev hloov pauv kub lossis kev hloov pauv ntawm lub hauv paus.

 

Tus nqi ntawm Hydroxypropyl Methylcellulose ntxiv
Feem ntau hais lus, qhov ntau ntawm hydroxypropyl methylcellulose ntxiv feem ntau yog ntawm 0.3% thiab 1.5% ntawm tag nrho qhov hnyav ntawm cov hmoov putty, nyob ntawm hom hmoov putty siv, qhov kev ua tau zoo xav tau, thiab qhov yuav tsum tau ua ntawm daim ntawv thov.

 

Cov hmoov putty uas tsis muaj viscosity ntau: Rau qee cov hmoov putty uas xav tau kev ua haujlwm zoo dua, qhov ntxiv HPMC qis dua tuaj yeem siv tau, feem ntau yog li ntawm 0.3% -0.5%. Lub hom phiaj ntawm hom hmoov putty no yog los txhim kho kev ua haujlwm ntawm kev tsim kho thiab txuas ntxiv lub sijhawm qhib. HPMC ntau dhau yuav ua rau cov hmoov putty viscous dhau thiab cuam tshuam rau kev tsim kho.

 

Cov hmoov putty viscosity siab: Yog tias lub hom phiaj yog los txhim kho qhov kev nplaum thiab kev tawg ntawm cov putty, lossis rau cov phab ntsa uas muaj kev kho mob nyuaj (xws li ib puag ncig nrog cov av noo siab), yuav siv tau ntau dua HPMC ntxiv, feem ntau yog 0.8% -1.5%. Lub hom phiaj ntawm cov hmoov putty no yog los txhim kho kev nplaum, kev tawg tiv thaiv thiab kev khaws cia dej.

 

Lub hauv paus rau kev kho qhov ntau ntxiv
Siv ib puag ncig: Yog tias qhov chaw tsim kho muaj cov av noo siab lossis qhov kub qis, qhov ntau ntawm HPMC ntxiv feem ntau yog nce ntxiv los txhim kho kev khaws dej thiab kev ua haujlwm tiv thaiv kev tawg ntawm cov hmoov putty.
Hom putty: Ntau hom hmoov putty (xws li putty sab hauv phab ntsa, putty sab nraud phab ntsa, putty zoo, putty ntxhib, thiab lwm yam) muaj cov kev cai sib txawv rau HPMC. Cov putty zoo xav tau cov nyhuv tuab dua, yog li qhov ntau ntawm HPMC siv yuav siab dua; thaum rau putty ntxhib, qhov ntau ntxiv yuav me me.
Lub hauv paus mob: Yog tias lub hauv paus tsis zoo lossis muaj dej nqus tau zoo, tej zaum yuav tsum tau ntxiv HPMC ntau ntxiv kom txhim kho qhov sib txuas ntawm cov putty thiab lub hauv paus.

 

Cov kev ceev faj rau kev siv HPMC

Tsis txhob ntxiv ntau dhau: Txawm hais tias HPMC tuaj yeem txhim kho kev ua tau zoo ntawm cov hmoov putty, HPMC ntau dhau yuav ua rau cov hmoov putty khov dhau thiab nyuaj rau tsim, thiab txawm tias cuam tshuam rau qhov ceev ziab thiab qhov nyuaj kawg. Yog li ntawd, qhov ntau ntawm kev ntxiv yuav tsum tau tswj hwm raws li qhov xav tau tshwj xeeb.

 

Kev sib xyaw nrog lwm cov khoom ntxiv: HPMC feem ntau yog siv ua ke nrog lwm cov khoom ntxiv xws li roj hmab hmoov, cellulose, thiab lwm yam. Yog tias nws siv ua ke nrog lwm cov khoom ua kom tuab lossis cov neeg sawv cev khaws dej, yuav tsum tau them sai sai rau qhov cuam tshuam synergistic ntawm lawv kom tsis txhob muaj kev tsis sib haum xeeb ntawm kev ua tau zoo.

 

Khoom ruaj khov:HPMCyog ib yam khoom uas yaj tau hauv dej. Kev ntxiv ntau dhau yuav ua rau cov hmoov putty nqus tau cov dej noo thiab lwj thaum lub sijhawm khaws cia. Yog li ntawd, thaum lub sijhawm tsim khoom thiab khaws cia, yuav tsum xav txog qhov ntau ntawm HPMC siv kom ntseeg tau tias cov hmoov putty ruaj khov nyob rau hauv cov xwm txheej khaws cia ib txwm muaj.

 

Ntxiv HPMC rau hauv cov hmoov putty tuaj yeem txhim kho nws cov kev ua tau zoo, tshwj xeeb tshaj yog hais txog kev ua haujlwm ntawm kev tsim kho, kev khaws dej thiab kev tiv thaiv tawg. Feem ntau hais lus, qhov ntxiv ntawm HPMC yog ntawm 0.3% thiab 1.5%, uas tau kho raws li qhov xav tau ntawm ntau hom hmoov putty. Thaum siv nws, nws yog qhov tsim nyog los sib npaug nws cov nyhuv tuab nrog cov kev xav tau ntawm kev tsim kho kom tsis txhob muaj cov teebmeem tsis tsim nyog los ntawm kev siv ntau dhau.