Hauv kev ua lag luam niaj hnub thiab muaj cov txheej txheem kev ua yeeb yam, kev ua tau zoo thiab kev ua tau zoo ntawm cov txheej yog ncaj qha rau cov nyhuv thiab kev pabcuam lub neej ntawm cov khoom kawg. Txhawm rau txhim kho kev ua tau zoo ntawm cov xim tha xim, cov quav roj ntsha ua tau lub luag haujlwm tseem ceeb hauv cov xim tsim. Raws li cov txheej txheej ntxiv ntxiv, HPMC (HydroxyPropyyl methylcellose) muaj cov zog ntawm dispersant thiab tuab thiab siv dav nyob rau hauv kev lag luam txheej.
Cov Khoom Yooj Yim thiab Kev Ua Kom Zoo ntawm HPMC
HPMC yog cov kev cai nonicol yog ether tau los ntawm kev hloov tshuaj lom neeg ntawm cov cellulose ntuj. Nws cov qauv molecular muaj ntau ntau ntawm cov pab pawg hydroxyl thiab methoxy, uas muab nws zoo rau solubility thiab daws teeb meem ruaj khov.
Thickening cov nyhuv: HPMC tuaj yeem tsim cov kev daws ntsha-viscosity tom qab tau yaj hauv dej. Qhov kev daws teeb meem no tuaj yeem ua rau muaj cov xim paug ntawm cov xim, yog li txhim kho lub thixotrostropy thiab los tiv thaiv cov khoom ntawm cov xim. Qhov no yog qhov tseem ceeb kom tswj cov xim sib dhos thiab txo cov sagging thaum lub ntawv thov.
Kev Ua Haujlwm: Cov molecular chains ntawm HPMC tuaj yeem raug Adsorbed ntawm cov duab tiv thaiv ruaj khov los tiv thaiv cov khoom ntawm cov txheej txheem qub. Nyob rau hauv txoj kev no, HPMC tuaj yeem txhim kho cov dispersion ntawm cov pigments, muab cov txheej txheej zoo dua cov kab thiab cov khoom sib xyaw.
Dej Tuav Tseg Kev Ua Tau Zoo: HPMC muaj dej zoo heev, uas tuaj yeem tiv thaiv kom tiv thaiv kom qhuav ntawm dej thaum lub sijhawm tsim kho. Nyob rau tib lub sijhawm, nws kuj tuaj yeem txuas ntxiv lub sijhawm qhib ntawm cov xim, ua kev tsim kho kom yooj yim dua.
Zaj duab xis-tsim cov khoom: HPMC tuaj yeem tsim cov txheej txheem ua si txuas ntxiv thaum lub sijhawm ua kom qhuav ntawm cov xim. Daim duab ua yeeb yaj kiab txheej no tsis tuaj yeem txhim kho cov nplaum ntawm cov xim, tab sis kuj txhim kho cov hnav tsis kam thiab huab cua tsis kam ntawm txheej, txuas ntxiv kev pabcuam lub neej ntawm cov xim tha xim.
Daim ntawv thov HPMC hauv cov txheej txheem sib txawv
HPMC yog dav siv nyob rau hauv ntau hom kev pleev xim, nrog rau sab hauv phab ntsa, cov xim av ntoo, thiab cov xim ntoo, qhov ntau ntawm HPMC sib txawv.
Txheej Txheem Architectural: Hauv Phab Ntsa Sab Hauv Tsev, cov nyhuv ntawm HPMC tshwj xeeb yog qhov tseem ceeb. Not only does it improve the paint's resistance to sag, it also improves the paint's application properties, making it easier to brush, roll or spray. Txij li cov duab kos duab tsim nyog feem ntau yuav tsum tau ua kom dej siab, dej khaws cia ntawm HPMC kuj tseem tuaj yeem tiv thaiv txheej tawg thiab tawg.
Waterproof txheej: Dej Txheej yuav tsum muaj cov yeeb yaj kiab muaj zog thiab dej tsis yeem. Kev ua yeeb yaj kiab kev ua yeeb yam thiab dej-khaws cov kev ua tau zoo HPMC ua lub luag haujlwm tseem ceeb hauv qhov no. Nws nce qhov ntom ntom ntawm cov xim, tiv thaiv cov dej noo noo, thiab txhim kho lub zog ntawm txheej.
Hluav Taws Kub-Retardant Txheej: Hluav Taws Xob-Retardant Txheej Txheem yuav tsum tau tsim cov txheej kub-insulating txheej thaum kub. Lub luag haujlwm ntawm HPMC nyob rau hauv cov txheej txheem xws li tsuas yog kom tuab thiab disperse, tab sis kuj yog ua yeeb yaj kiab txheej txheem ib qho chaw tiv thaiv ruaj khov ntawm cov kub.
Kev ua ntoo ntoo: hauv cov txheej ntoo ntoo, HPMC feem ntau ua rau lub luag haujlwm ntawm thickening, ua cov xim pleev xim duab smoother thiab smoother, thaum txhim kho lub hardness thiab hnav tsis kam ntawm txheej.
Ceev faj rau kev siv HPMC
Txawm hais tias HPMC muaj ntau yam zoo hauv cov txheej txheej, cov ntsiab lus hauv qab no tseem yuav tsum tau sau tseg thaum siv tau:
Kev tshem tawm txoj kev: Thaum HPMC yog yaj yuav tsum tau them tswj cov dej kub thiab nplawm kom tsis txhob muaj qhov ua tsis tiav los yog agglomeration. Nws yog feem ntau pom zoo maj mam ntxiv HPMC mus rau chav sov lossis dej sov thiab txuas ntxiv mus txog thaum nws yaj tag.
Ib qho ntxiv ntawm kev tswj hwm: tus nqi ntawm HPMC yuav tsum tau hloov kho raws li hom thiab xav tau ntawm txheej. Ntau dhau lawm ntxiv yuav ua rau cov txheej sib txawv kom tau dhau siab thiab cuam tshuam rau kev ua haujlwm tsim kho; Ntxiv ntxiv tsis tuaj yeem ua tiav cov nyhuv xav tau.
Compatibility nrog lwm cov tshuaj sib ntxiv: hauv txheej txheej ua yeeb yam, qhov sib xyaw ntawm HPMC nrog lwm cov kev ntxiv ntawm HPMC nrog rau lwm cov kev txuas ntxiv kom ntseeg tau tias nws tuaj yeem ua haujlwm tau zoo nyob rau hauv cov qauv.
Raws li cov txheej sib ntxiv ntau txheej ntxiv, HPMC nyob hauv txoj haujlwm tseem ceeb hauv kev lag luam niaj hnub. Nws tsis tuaj yeem txhim kho kev tsim kho cov kev tsim kho ntawm cov txheej txheem, tab sis kuj txhim kho cov khoom siv lub cev thiab kev pabcuam lub neej ntawm txheej. Nrog kev txhim kho tas mus li ntawm cov txheej txheem kev lag luam, kev thov kev lag luam ntawm HPMC tseem yuav dhau los ua kev lag luam ntau dua, muab ntau ntxiv rau cov khoom lag luam tshiab thiab kev txhim kho cov khoom lag luam.
Lub Sijhawm Post: Feb-17-2025