HydroxyPropyyl methylulose (HPMC, HydroxyPropylulose uas tau siv dav hlau-soluble polymellulose uas tau siv dav hauv kev tsim kho, tshwj xeeb tshaj yog siv hmoov av, tsho tshaj plaws thiab lwm yam ntaub ntawv. HPMC tsis tsuas yog muaj cov khoom siv hluav taws xob zoo, cov dej khaws cia, thiab thickening cov yam ntxwv, tab sis kuj tseem tuaj yeem txhim kho qhov kev ua haujlwm thiab cov nplaum ntawm cov hmoov. Rau cov qauv yas ntawm cov hmoov putty, tus nqi tsim nyog ntawm HPMC muaj qhov cuam tshuam tseem ceeb rau qhov zoo, kev tsim kho thiab kev lag luam ntawm cov khoom.
1. Lub luag haujlwm thiab kev ua haujlwm ntawm HPMC
Raws li tus tseem ceeb ntxiv hauv cov hmoov putty, HPMC muaj cov haujlwm tseem ceeb hauv qab no:
Thickening nyhuv: HPMC tuaj yeem nce viscosity ntawm hmoov putty thiab txhim kho nws cov rhineology. Los kho tus nqi HPMC ntxiv, kev sib xws ntawm cov hmoov putty thiab tuab thaum lub sijhawm kev tsim kho tuaj yeem tswj tau tias cov putty tuaj yeem yog tusyees coly ntawm phab ntsa.
Dej khaws cia: HPMC tuaj yeem txhim kho cov dej ua kom tau zoo ntawm cov hmoov uas muaj putty, thiab tsis txhob ua kom qhuav thiab tawg ntawm cov ntaub ntawv thaum lub sijhawm ua haujlwm. Qhov no yog qhov tshwj xeeb tshaj yog thaum ua tiav ntau qhov chaw loj, tshwj xeeb tshaj yog nyob rau hauv kub tshaj plaws, tshuab ziab khaub ncaws.
Txhim Kho Adhesion: Kev siv HPMC hauv cov hmoov txhuas ua kom muaj cov nplaum ntawm nws thiab cov pa taws, thiab lwm yam), thiab lwm yam)
Txhim kho nto ua tiav ntawm HPMC, Putty hmoov tuaj yeem sau cov kab nrib hoom me me hauv phab ntsa, ua rau saum npoo du thiab muag heev, thiab txhim kho cov loog.
2. Cov nyhuv ntawm HPMC ntau npaum li cas ntawm kev ua yeeb yam ntawm cov hmoov putty
Kev Siv Ua Haujlwm
Tus nqi ntawm HPMC hauv hmoov putty ncaj qha cuam tshuam nws txoj kev tsim kho. Tus nqi ntawm HPMC tsim nyog tuaj yeem txhim kho kom muaj cov kua dej thiab ua haujlwm ntawm cov hmoov ua kom muaj hmoov. Cov kev siv tshuaj ntau ntau yog 0.3% ~ 1.0% (suav raws li qhov hnyav tag nrho ntawm cov hmoov putty). Thaum HPMC noj tshuaj tsawg, cov hmoov muaj zaub muaj cov hmoov av muaj cov nplaum thiab nplua zuj zus mus tswj cov tuab; Thaum lub sijhawm HPMC ntau dhau yuav ua rau cov hmoov tsis muaj zog ntau dhau thiab nyuaj rau kev tsim kho, nce ntxiv kev siv zog.
Nto Zoo
Cov nyhuv tuab ntawm HPMC ua rau cov hmoov puty muaj kev tsim kho kev tsim kho tau zoo. Tshwj xeeb tshaj yog thaum ua cov txheej txheem kev tsim kho, cov hmoov ua kom muaj zog tuaj yeem ua raws li phab ntsa saum npoo av thiab txo qhov tshwm sim ntawm cov hmoov poob tawm. Tus nqi HPMC muaj peev xwm tswj tau kom muaj kev ziab kom qhuav ntawm cov hmoov uas muaj zaub mov zoo thiab zam cov khoom tsis zoo saum npoo los ntawm kev tawg. Tsawg heev HPMC kev tshuaj HPMC yuav ua rau cov hmoov puty kom qhuav sai thiab daim ntawv tawg; Thaum lub sij hawm muaj ntau dhau heev yuav ua rau lub saum npoo kom tau du heev, yooj yim ua rau txo qis hauv adhesion thiab hollowing.
Hardness thiab lub zog
Tus nqi HPMC kuj muaj qee yam cuam tshuam rau lub hardness thiab lub zog ntawm cov hmoov putty. Feem ntau hais lus, thaum tus mob HPM yog tsawg, lub zog ntawm lub zog tsis zoo, thiab txo qis lossis txo qis lossis poob dej ntawm ob peb teev tom qab kev tsim kho; Kev tsim kho kom nce tus nqi HPMC tuaj yeem txhim kho qhov tawg tsis kam thiab lub zog ntawm cov hmoov putty. Lub zog, muab nws zoo dua durability tom qab ua kom tawv.
Dej tuav thiab ziab nrawm
Ib qho kev sib txawv ntawm HPMC yog tias nws tuaj yeem txhim kho cov dej khaws cia ntawm cov hmoov txhuas, uas yog qhov tseem ceeb rau kev ua haujlwm thaum lub sijhawm ua haujlwm. Thaum cov tshuaj muaj nuj nqis tsawg, cov hmoov txhuas yooj yim yuav ua rau muaj teeb meem sai sai, yuav ua rau muaj teeb meem xws li kev tshem tawm hmoov thiab tawg thaum lub sijhawm kev tsim kho. Tus nqi ntawm HPMC tsim nyog tuaj yeem ua kom cov hmoov putty ntawm phab ntsa nrog txaus noo noo, kom muaj lub sijhawm txaus rau kev txhuam hniav thiab txiav. Thaum cov tshuaj ntau dhau, cov hmoov nqaij tawv yuav dhau los ua cov xim tsis sib xws, ua rau kom qhuav ntawm cov nplaim tom qab kev tsim kho thiab cuam tshuam rau cov txheej putty.
Kev khwv nyiaj txiag
Txawm hais tias HPMC muaj ntau cov yam ntxwv zoo heev, raws li kev ua haujlwm ntxiv, nws tus nqi yog qhov siab. Txawm hais tias ntau dhau ntawm HPMC tuaj yeem txhim kho kev ua tau zoo ntawm cov hmoov uas muaj putty, nws tseem yuav nce nqi ntau ntau. Yog li ntawd, nyob rau hauv cov txheej txheem ntau lawm ntawm putty hmoov, kev siv ntawm HPMC yuav tsum tau tswj hwm raws li cov kev xav tau thiab kev lag luam kom ua tiav kev ua tau zoo thiab raug nqi.
3. Qhov sib txawv hauv ntim ntawm ntau hom HPMC
HPMC tau muab faib ua ntau hom raws li kev hloov kho cov qauv sib txawv, xws li HPMC nrog cov qib qis dua thiab qib siab dua. Cov nyhuv ntawm nws siv nyob rau hauv putty hmoov tej zaum yuav txawv. HPMC nrog lub sijhawm tsawg dua ntawm kev hloov pauv feem ntau muaj lub sijhawm siv ua kom sov thiab lub sijhawm zaum ntev, thiab haum rau lub sijhawm ua haujlwm ntev; Thaum HPMC nrog cov qib siab ntawm kev hloov pauv tuaj yeem txhim kho kom muaj kua thiab kua ntawm cov hmoov uas muaj putty nyob rau lub sijhawm luv luv. Kev tsim muaj. Raws li hom HPMC sib txawv, ntau npaum li cas ntau npaum li cas tseem yuav kho tau. Feem ntau, cov nqi ntawm cov qis-chaw hpmc yog qib siab dua.
Tus nqi ntawm HPMC siv hauv Putty Hmoov muaj qhov cuam tshuam ncaj qha rau kev ua yeeb yam ntawm hmoov putty. Cov tshuaj tsim nyog tuaj yeem txhim kho kev ua tau zoo ntawm kev tsim kho cov hmoov txhuas, txhim kho cov dej zoo, txhim kho cov dej khaws cia, txhim kho cov nplaum thiab ua kom muaj zog. Txawm li cas los xij, siv ntau dhau los yog dhau tsawg tsawg tuaj yeem cuam tshuam tsis zoo rau kev ua tau zoo ntawm cov hmoov uas muaj zaub. Txhawm rau kom suav nrog HPMC tsim nyog yuav tsum muaj kev txiav txim siab tau txiav txim siab raws li cov ntaub ntawv tshwj xeeb ntawm kev siv putty, tsim kho cov nyiaj txiag, nqi nyiaj txiag thiab lwm yam. Los ntawm kev txhim kho tus nqi HPMC, kev ua tau zoo thiab kev ua tau zoo ntawm Putty hmoov tuaj yeem hloov kho kom tau zoo rau kev xav tau ntawm kev lag luam thiab cov neeg siv.
Lub sijhawm Post: Feb-15-2025