1. Nws ruaj khov rau cov kua qaub thiab alkali, thiab nws cov kua dej ruaj khov heev hauv pH = 2 ~ 12. Caustic soda thiab dej txiv qaub tsis muaj ntau yam cuam tshuam rau nws cov kev ua tau zoo, tab sis alkali tuaj yeem ua kom nws cov nqi yaj sai dua thiab ua rau nws cov viscosity me ntsis.
2. HPMC yog ib qho tshuaj uas ua rau cov dej tuav tau zoo rau cov hmoov qhuav, uas tuaj yeem txo qhov nrawm ntawm kev los ntshav thiab qib txheej ntawm cov hmoov, txhim kho kev sib koom ua ke ntawm cov hmoov, tiv thaiv kev tsim cov yas tawg hauv cov hmoov, thiab txo cov yas tawg ntawm cov hmoov.
3. Nws yog cov electrolyte uas tsis yog ionic thiab tsis yog polymeric, uas ruaj khov heev hauv cov kua dej uas muaj cov ntsev hlau thiab cov electrolytes organic, thiab tuaj yeem ntxiv rau cov ntaub ntawv tsim kho kom ntev ntev kom ntseeg tau tias nws cov khoom siv tau zoo dua.
4. Kev ua haujlwm ntawm cov mortar tau zoo dua qub. Cov mortar zoo li "oily", uas tuaj yeem ua rau cov pob qij txha puv, ua kom du, ua rau cov mortar thiab cov txheej hauv paus sib txuas ruaj khov, thiab ua kom lub sijhawm ua haujlwm ntev dua.
kev khaws dej
Ua tiav kev saib xyuas sab hauv, uas yog qhov zoo rau kev txhim kho lub zog mus sij hawm ntev
Tiv thaiv kev los ntshav, tiv thaiv cov mortar los ntawm kev sib sau ua ke thiab ntsws
Txhim kho qhov tawg tsis kam ntawm mortar.
ua kom tuab
Tiv thaiv kev sib cais, txhim kho kev sib npaug ntawm cov av nplaum
Txhim kho lub zog ntawm kev sib txuas ntub thiab txhim kho kev tiv thaiv sag.
cua ntws
Txhim kho kev ua haujlwm ntawm cov mortar
Raws li qhov viscosity ntawm cellulose ua siab dua thiab cov saw molecular ntev dua, cov nyhuv ntawm huab cua-entraining yog qhov pom tseeb dua.
Kev ncua sijhawm
Ua ke nrog kev khaws dej kom ntev lub sijhawm qhib ntawm cov mortar.
Hydroxypropyl Starch Ether
1. Cov ntsiab lus hydroxypropyl siab dua hauv cov hmoov txhuv nplej siab ua rau lub cev muaj hydrophilicity ruaj khov, ua rau dej dawb mus rau hauv dej khi thiab ua lub luag haujlwm zoo hauv kev khaws cia dej.
2. Cov hmoov txhuv nplej siab ethers nrog cov ntsiab lus hydroxypropyl sib txawv hauv lawv lub peev xwm los pab cellulose hauv kev khaws cia dej nyob rau hauv tib qho koob tshuaj.
3. Kev hloov pauv ntawm hydroxypropyl pawg ua rau qib kev nthuav dav hauv dej thiab nias qhov chaw ntws ntawm cov khoom me me, yog li ua rau cov viscosity thiab cov nyhuv tuab.
Thixotropic lubricity
Qhov kev tawg sai ntawm cov hmoov txhuv nplej siab hauv lub cev mortar hloov pauv qhov rheology ntawm cov mortar thiab muab nws nrog thixotropy. Thaum lub zog sab nraud siv, qhov viscosity ntawm cov mortar yuav txo qis, ua kom muaj kev ua haujlwm zoo, pumpability, thiab endowment Thaum lub zog sab nraud raug rho tawm, qhov viscosity nce, yog li cov mortar muaj kev ua tau zoo tiv thaiv kev sagging thiab tiv thaiv kev sag, thiab hauv cov hmoov putty, nws muaj qhov zoo ntawm kev txhim kho qhov ci ntawm cov roj putty, polishing ci, thiab lwm yam.
Cov txiaj ntsig ntawm kev khaws dej pab
Vim yog qhov cuam tshuam ntawm pawg hydroxypropyl hauv lub cev, cov hmoov txhuv nplej siab nws tus kheej muaj cov yam ntxwv hydrophilic. Thaum nws sib xyaw nrog cellulose lossis ntxiv rau qee qhov ntawm cov mortar, nws tuaj yeem ua rau kom muaj dej ntau ntxiv rau qee qhov thiab txhim kho lub sijhawm ziab ntawm qhov chaw.
Tiv thaiv kev poob thiab tiv thaiv kev plam
Zoo heev tiv thaiv kev sagging, shaping effect
Cov hmoov latex uas yaj tau dua tshiab
1. Txhim kho qhov ua haujlwm tau ntawm cov mortar
Cov hmoov roj hmab tau tawg ua tej daim me me hauv lub cev, ua rau lub cev muaj dej ntws zoo, txhim kho kev ua haujlwm thiab kev ua haujlwm ntawm cov tshuaj khib.
2. Txhim kho lub zog sib txuas thiab kev sib koom ua ke ntawm cov mortar
Tom qab cov hmoov roj hmab tau tawg mus rau hauv ib zaj duab xis, cov khoom tsis muaj zog thiab cov khoom siv organic hauv lub cev mortar tau sib xyaw ua ke. Nws tuaj yeem xav tias cov xuab zeb cement hauv lub mortar yog lub cev pob txha, thiab cov hmoov latex tsim cov leeg hauv nws, uas ua rau muaj kev sib koom ua ke thiab lub zog. tsim cov qauv yooj ywm.
3. Txhim kho qhov tiv taus huab cua thiab khov-thaw tiv taus ntawm cov mortar
Hmoov latex yog cov thermoplastic resin nrog kev ywj pheej zoo, uas tuaj yeem ua rau cov mortar tiv taus qhov txias thiab cua sov hloov pauv sab nraud, thiab tiv thaiv cov mortar kom tsis txhob tawg vim qhov kub hloov pauv.
4. Txhim kho lub zog ntawm cov mortar
Cov txiaj ntsig ntawm polymer thiab cement paste ua ke sib pab. Thaum cov kab nrib pleb raug tsim los ntawm lub zog sab nraud, cov polymer tuaj yeem hla cov kab nrib pleb thiab tiv thaiv cov kab nrib pleb kom tsis txhob nthuav dav, yog li ntawd qhov tawg thiab deformability ntawm cov mortar tau zoo dua.
Lub sijhawm tshaj tawm: Lub Peb Hlis-03-2023