Cov cellulose ethers uas siv ntau suav nrog HEC, HPMC, CMC, PAC, MHEC thiab lwm yam. Cov cellulose ether uas yaj tau hauv dej uas tsis yog ionic muaj qhov nplaum, kev ruaj khov ntawm kev sib kis thiab lub peev xwm khaws dej, thiab yog cov khoom siv ntxiv rau cov ntaub ntawv siv hauv tsev. HPMC, MC lossis EHEC siv rau hauv feem ntau cov kev tsim kho uas ua los ntawm cement lossis gypsum, xws li masonry mortar, cement mortar, cement coating, gypsum, cementitious mixture, thiab milky putty, thiab lwm yam, uas tuaj yeem txhim kho qhov kev sib kis ntawm cement lossis xuab zeb thiab txhim kho qhov kev sib txuas zoo heev, uas yog qhov tseem ceeb heev rau plaster, tile cement thiab putty. HEC siv rau hauv cement, tsis yog tsuas yog ua tus neeg tiv thaiv xwb, tab sis kuj yog tus neeg sawv cev khaws dej. HEHPC kuj muaj daim ntawv thov no.
Cov khoom Hydroxypropyl methylcellulose HPMC muab ntau yam khoom siv lub cev thiab tshuaj lom neeg ua ke rau hauv cov khoom tshwj xeeb nrog ntau yam kev siv thiab cov khoom:
Kev khaws dej: Nws tuaj yeem khaws dej rau ntawm cov qhov chaw xws li phab ntsa cement boards thiab cib.
Zaj duab xis-ua: Nws tuaj yeem tsim ib zaj duab xis pob tshab, tawv thiab mos nrog kev tiv thaiv roj zoo heev.
Kev yaj ntawm cov organic: Cov khoom no yaj tau hauv qee cov kuab tshuaj organic, xws li cov feem pua ntawm ethanol / dej, propanol / dej, dichloroethane thiab lub kaw lus yaj uas muaj ob lub kuab tshuaj organic.
Kev ua kom sov: Thaum cov kua dej ntawm cov khoom raug cua sov, cov gel yuav tsim, thiab cov gel uas tsim yuav tig rov qab mus ua cov kua thaum txias.
Kev ua haujlwm ntawm qhov chaw: Muab kev ua haujlwm ntawm qhov chaw hauv cov tshuaj kom ua tiav qhov xav tau emulsification thiab cov colloids tiv thaiv, nrog rau kev ruaj khov theem.
Kev Ncua: Hydroxypropyl methylcellulose tiv thaiv cov khoom khov kho kom tsis txhob lo rau hauv av, yog li ntawd nws thiaj li tiv thaiv kev tsim cov av noo.
Cov Colloids Tiv Thaiv: Tiv thaiv cov tee dej thiab cov khoom me me kom tsis txhob sib sau ua ke lossis coagulating.
Yaj hauv dej: Cov khoom no tuaj yeem yaj hauv dej ntau yam, qhov siab tshaj plaws tsuas yog txwv los ntawm viscosity.
Tsis-ionic inertness: Cov khoom yog cov cellulose ether uas tsis yog-ionic uas tsis sib xyaw nrog cov ntsev hlau lossis lwm cov ions los tsim cov dej tsis yaj.
Kev ruaj khov ntawm acid-base: tsim nyog rau kev siv hauv qhov ntau ntawm PH3.0-11.0.
Lub sijhawm tshaj tawm: Cuaj hlis-22-2022