Hydroxypropyl methylcellulose ua dab tsi?

Hauv kev siv cov khoom siv hauv kev tsim kho,hydroxypropyl methylcelluloseyog ib qho khoom siv ntxiv rau kev tsim kho uas siv ntau dua, thiab hydroxypropyl methylcellulose siv dav hauv kev lag luam thiab muaj ntau hom. Hydroxypropyl methylcellulose tuaj yeem muab faib ua hom dej txias tam sim ntawd thiab hom kub yaj, dej txias tam sim ntawd HPMC tuaj yeem siv rau hauv hmoov putty, mortar, kua nplaum, kua xim thiab cov khoom siv tshuaj txhua hnub; kub yaj HPMC feem ntau yog siv rau hauv cov khoom hmoov qhuav, thiab Sib tov ncaj qha nrog cov hmoov qhuav xws li hmoov putty thiab mortars rau daim ntawv thov sib npaug.

Hydroxypropyl methylcellulose siv tau dav los txhim kho kev ua haujlwm ntawm cov cement, gypsum thiab lwm yam khoom siv hauv tsev hydrated. Hauv cov cement mortar, nws tuaj yeem txhim kho kev khaws dej, ncua lub sijhawm kho thiab lub sijhawm qhib, thiab txo qhov tshwm sim ntawm kev ncua dej.

Hydroxypropyl methylcellulose siv tau rau hauv kev sib tov thiab kev tsim kho cov ntaub ntawv hauv tsev, thiab cov mis sib tov qhuav tuaj yeem sib tov nrog dej sai thiab qhov sib xws xav tau tuaj yeem tau txais sai. Cellulose ether yaj sai dua thiab tsis muaj agglomeration, propylmethylcellulose tuaj yeem sib tov nrog hmoov qhuav hauv cov ntaub ntawv hauv tsev, nws muaj cov yam ntxwv ntawm kev tawg hauv dej txias, uas tuaj yeem ncua cov khoom khov zoo thiab ua rau cov khoom sib tov zoo dua thiab sib xws.

Tsis tas li ntawd xwb, nws tuaj yeem txhim kho qhov lubricity thiab plasticity, ua rau kev ua haujlwm yooj yim dua, ua kom cov qauv khoom yooj yim dua, ua kom muaj zog rau kev khaws dej, ua kom lub sijhawm ua haujlwm ntev dua, pab tiv thaiv kev ntws ntsug ntawm cov mortar, mortar thiab vuas, thiab txuas ntxiv lub sijhawm txias, los txhawb kev ua haujlwm zoo.

Hydroxypropyl methylcellulosetxhim kho lub zog sib txuas ntawm cov nplaum pobzeb, txhim kho qhov tsis kam tawg ntawm cov nplaum mortar thiab cov ntoo board, tsis yog tsuas yog ua rau cov huab cua hauv cov mortar ntau ntxiv, tab sis kuj txo qhov ua tau ntawm kev tawg, thiab tseem txhim kho Txhim kho qhov zoo li ntawm cov khoom thiab txhim kho kev ua haujlwm tiv thaiv kev poob ntawm cov nplaum pobzeb.