Hauv cov cement mortar thiab gypsum-based slurry, HPMC feem ntau ua lub luag haujlwm ntawm kev khaws dej thiab thickening. Nws tuaj yeem txhim kho lub zog khi thiab tiv thaiv pituitary ntawm slurry.
Qhov kub ntawm huab cua, qhov kub ntawm huab cua thiab qhov ceev ntawm huab cua cuam tshuam rau qhov nrawm ntawm cov dej hauv cov cement mortar thiab cov khoom lag luam gypsum.
Nyob rau hauv ntau lub caij sib txawv, muaj qee qhov sib txawv ntawm cov dej tuav ntawm HPMC. Hauv kev tsim kho tshwj xeeb, cov dej tuav ntawm cov slurry tuaj yeem hloov kho los ntawm kev nce lossis txo cov nyiaj ntawm HPMC ntxiv. Kev khaws dej ntawm methyl cellulose ether nyob rau hauv qhov kub siab yog qhov qhia tseem ceeb los paub qhov txawv ntawm qhov zoo ntawm methyl cellulose ether. Cov khoom zoo heev HPMC series tuaj yeem daws tau qhov teeb meem ntawm kev khaws dej nyob rau hauv qhov kub siab.
Thaum lub caij kub thiab txias, tshwj xeeb tshaj yog nyob rau thaj chaw kub thiab qhuav thiab kev tsim cov txheej nyias nyias ntawm sab hnub ci. HPMC zoo yog qhov yuav tsum tau los txhim kho qhov khaws cia dej ntawm cov slurry. Nws tuaj yeem txhim kho lub peev xwm ntawm cov pa oxygen ntawm pawg hydroxyl los tsim cov hydrogen sib txuas nrog cov ether sib txuas. Ua kom cov dej dawb mus rau hauv cov dej khi, kom tswj tau qhov evaporation ntawm cov dej los ntawm huab cua kub thiab txias. Qib khaws cia dej siab.
Cov cellulose HPMC zoo tuaj yeem sib xyaw thiab sib kis tau zoo hauv cov cement mortar thiab cov khoom siv gypsum. Thiab qhwv tag nrho cov khoom khov kho kom tsim tau ib zaj duab xis ntub dej. Cov dej noo hauv cov txheej hauv paus maj mam tso tawm ntev, thiab cov khoom siv inorganic gelling dhau los ua cov tshuaj tiv thaiv dej. Yog li ntawd, ua kom lub zog sib txuas thiab lub zog compressive ntawm cov khoom siv. Yog li ntawd, nws yuav tsum tau tsim nyob rau hauv lub caij ntuj sov kub kom ua tiav cov dej khaws cia. Nco ntsoov ntxiv cov khoom zoo HPMC raws li cov mis, txwv tsis pub yuav muaj teeb meem zoo xws li tsis txaus dej. Tab sis nws kuj ua rau muaj teeb meem kev tsim kho ntawm cov neeg ua haujlwm. Thaum qhov kub poob qis, qhov ntau ntawm HPMC tuaj yeem maj mam txo qis, thiab cov dej khaws cia kuj tuaj yeem ua tiav.
Lub sijhawm tshaj tawm: Plaub Hlis-21-2023