Kev Ua Haujlwm ntawm Daim Ntawv Thov HPMC
Hydroxypropyl methyl cellulose (HPMC) yog ib hom non-ionic cellulose ether, uas yog ua los ntawm cov khoom siv polymer ntuj ua cov khoom siv raw thiab ua kom zoo los ntawm ntau cov txheej txheem tshuaj lom neeg. Hnub no peb yuav kawm txog kev ua haujlwm ntawm HPMC.
● Kev yaj dej: nws tuaj yeem yaj rau hauv dej hauv txhua qhov sib piv, qhov siab tshaj plaws nyob ntawm qhov viscosity, thiab qhov kev yaj tsis cuam tshuam los ntawm PH.l Kev yaj organic: HPMC tuaj yeem yaj rau hauv qee cov organic solvents lossis cov organic solvent aqueous xws li dichloroethane, ethanol kua, thiab lwm yam.
● Cov yam ntxwv ntawm cov tshuaj gel thermal: Cov tshuaj gel uas tig tau yuav tshwm sim thaum lawv cov kua dej raug cua sov rau qee qhov kub, nrog rau kev ua haujlwm ceev ceev uas tswj tau.
● Tsis muaj ionic charge: HPMC yog ib qho non-ionic cellulose ether thiab yuav tsis sib xyaw nrog cov hlau ions lossis cov organics los tsim cov insoluble precipitates.
● Ua kom tuab: Nws cov kua dej muaj qhov tuab, thiab qhov ua kom tuab yog cuam tshuam nrog nws cov viscosity, concentration, thiab system.
● Kev khaws dej: HPMC lossis nws cov kua tuaj yeem nqus thiab khaws dej.
● Kev tsim zaj duab xis: HPMC tuaj yeem ua rau hauv zaj duab xis du, tawv, thiab ywj, thiab muaj roj zoo heev thiab tiv taus oxidation.
● Kev tiv thaiv enzyme: HPMC cov kua muaj kev tiv thaiv enzyme zoo heev thiab kev ruaj khov viscosity zoo.
● PH ruaj khov: HPMC ruaj khov rau cov kua qaub thiab alkali, thiab pH tsis cuam tshuam rau hauv qhov ntau ntawm 3-11. (10) Kev ua haujlwm ntawm qhov chaw: HPMC muab kev ua haujlwm ntawm qhov chaw hauv cov tshuaj kom ua tiav cov emulsification thiab cov teebmeem tiv thaiv colloid.
● Cov khoom tiv thaiv kev poob qis: HPMC ntxiv cov khoom thixotropic rau cov hmoov putty, mortar, vuas vov, thiab lwm yam khoom, thiab muaj peev xwm tiv thaiv kev poob qis zoo heev.
● Kev tawg ua tej daim me me: HPMC tuaj yeem txo qhov kev sib txhuam ntawm cov theem thiab ua rau cov theem tawg ua tej daim me me sib npaug zos rau hauv cov tee dej uas muaj qhov loj me tsim nyog.
● Kev nplaum: Nws siv tau ua ib qho khoom nplaum rau cov xim ntom ntom: 370-380g/l³ ntawv, thiab kuj siv tau rau hauv cov txheej thiab cov nplaum.
● Lubricity: Nws siv tau rau hauv roj hmab, asbestos, cement, thiab cov khoom siv ceramic kom txo qhov kev sib txhuam thiab txhim kho qhov permeability ntawm cov slurry pob zeb.
● Kev Ncua: Nws tuaj yeem tiv thaiv cov khoom ruaj khov kom tsis txhob los nag thiab tiv thaiv kev tsim cov nag.
● Kev ua kom cov emulsification ruaj khov: Vim tias nws tuaj yeem txo qhov kev ntxhov siab ntawm qhov chaw thiab qhov sib txuas ntawm lub ntsej muag, nws tuaj yeem ua kom cov emulsion ruaj khov.
● Cov tshuaj colloid tiv thaiv: Ib txheej tiv thaiv tau tsim rau ntawm qhov chaw ntawm cov tee dej uas tawg mus kom tiv thaiv cov tee dej kom tsis txhob sib sau ua ke thiab sib sau ua ke kom ua tiav cov txiaj ntsig tiv thaiv ruaj khov.
Lub sijhawm tshaj tawm: Tsib Hlis-08-2025