Txhim kho cov nyhuv ntawm HPMC mortar ntawm pob zeb

Nyob rau hauv xyoo tas los no, nrog kev txhim kho txuas ntxiv ntawm cov cuab yeej hluav taws xob sab nraud, kev nce qib ntawm cellulose ntau lawm technology, thiab cov yam ntxwv zoo ntawm HP cellulose nws tus kheej, HP cellulose tau siv dav hauv kev tsim kho kev lag luam. Txhawm rau kom nkag siab tob txog cov txheej txheem ntawm HP cellulose thiab cov khoom siv cement, daim ntawv no qhia txog kev txhim kho ntawm HP cellulose ntawm kev sib koom ua ke ntawm cov khoom siv cement.

teem sijhawm：

Lub sijhawm teeb tsa ntawm cov pob zeb feem ntau cuam tshuam nrog lub sijhawm teeb tsa ntawm cov cement, thiab qhov sib xyaw ua ke tsis tshua muaj txiaj ntsig, yog li lub sijhawm teeb tsa ntawm mortar tuaj yeem siv es tsis txhob kawm txog cov txiaj ntsig ntawm HP cellulose ntawm lub sijhawm teeb tsa ntawm cov dej hauv qab dej tsis sib xyaw. Txij li thaum lub sijhawm teeb tsa ntawm mortar raug cuam tshuam los ntawm dej cement piv thiab cement xuab zeb piv, txhawm rau ntsuas qhov cuam tshuam ntawm HP cellulose ntawm lub sijhawm teeb tsa ntawm mortar, nws yog ib qho tsim nyog los kho cov dej cement piv thiab cement xuab zeb piv ntawm mortar.

Cov txiaj ntsig kev sim qhia tau hais tias qhov sib ntxiv ntawm HP cellulose muaj qhov cuam tshuam pom tseeb ntawm cov tshuaj khib nyiab sib xyaw, thiab lub sijhawm teem sijhawm ntawm cov tshuaj khib nyiab yog ncua ntev nrog qhov nce ntawm HP cellulose cov ntsiab lus. Raws li tib hp cellulose cov ntsiab lus, lub sij hawm teem ntawm mortar tsim nyob rau hauv dej yog ntev tshaj li uas tsim nyob rau hauv cov huab cua. Thaum ntsuas hauv dej, lub sijhawm teeb tsa ntawm mortar tov nrog HP cellulose yog 6 ~ 18 teev ncua sij hawm hauv qhov chaw pib thiab 6 ~ 22 teev qeeb hauv qhov chaw kawg piv nrog cov qauv dawb. Yog li, HP cellulose yuav tsum tau ua ke nrog cov neeg sawv cev thaum ntxov.

HP cellulose yog ib tug siab molecular polymer nrog ib tug macromolecular linear qauv thiab hydroxyl pawg nyob rau hauv lub functional pawg, uas muaj peev xwm tsim hydrogen bonds nrog cov dej molecules sib tov kom viscosity ntawm cov dej sib tov. Qhov ntev molecular chains ntawm HP cellulose nyiam ib leeg, ua rau HP cellulose molecules intertwine los tsim ib lub network qauv, uas qhwv cov cement thiab sib tov dej. Vim lub network qauv zoo ib yam li cov yeeb yaj kiab tsim los ntawm HP cellulose thiab nws cov nyhuv wrapping ntawm cov cement, nws tuaj yeem tiv thaiv cov evaporation ntawm cov dej hauv mortar thiab cuam tshuam los yog txo qis cov dej ceev ntawm cov cement.