Lub luag haujlwm ntawm hydroxypropyl methylcellulose hauv putty

Lub luag haujlwm ntawm hydroxypropyl methylcellulose hauv putty

Los ntawm thickening, dej retention thiab kev tsim kho ntawm peb lub luag haujlwm.

Ua kom tuab: Cellulose tuaj yeem ua kom tuab kom dai, ua kom cov tshuaj sib npaug thiab sib xws, thiab tiv taus kev poob qis. Kev khaws dej: Ua kom cov hmoov putty qhuav qeeb qeeb, thiab pab cov tshuaj calcium tshauv ua haujlwm hauv qab dej. Kev tsim kho: Cellulose muaj cov nyhuv ua kom lubricating, uas tuaj yeem ua rau cov hmoov putty ua haujlwm tau zoo. Hydroxypropyl methylcellulose tsis koom nrog hauv kev tshuaj lom neeg thiab tsuas yog ua lub luag haujlwm pabcuam. Hmoov putty raug ntxiv nrog dej los ua kom phab ntsa sib xyaw, uas yog kev tshuaj lom neeg, vim tias muaj kev tsim cov khoom tshiab calcium carbonate. Cov khoom tseem ceeb ntawm cov hmoov calcium tshauv yog: sib xyaw ntawm calcium hydroxide Ca(OH)2, calcium oxide CaO thiab me me ntawm calcium carbonate CaCO3. Cov calcium tshauv tsim calcium carbonate hauv qab CO2 hauv dej thiab huab cua, thaum hydroxypropyl methyl Cellulose tsuas yog khaws dej thiab pab cov tshuaj calcium tshauv ua haujlwm zoo dua, uas nws tus kheej tsis koom nrog hauv kev tshuaj lom neeg.

Peb xub tshuaj xyuas cov laj thawj rau cov hmoov poob ntawm cov putty los ntawm cov khoom siv raw ntawm cov putty: tshauv calcium hmoov, hydroxypropyl methylcellulose, hnyav calcium hmoov, dej tshauv calcium hmoov

1. Hauv kev tsim khoom tiag tiag, txhawm rau kom ua kom sai dua qhov kev lwj, qhov kub ntawm calcination feem ntau nce mus txog 1000-1100 ° C. Vim yog qhov loj ntawm cov khoom siv limestone raw lossis qhov kub tsis sib xws hauv lub qhov cub thaum lub sijhawm calcination, cov txiv qaub feem ntau muaj cov txiv qaub tsis muaj zog thiab cov txiv qaub overfired. Cov calcium carbonate hauv cov txiv qaub tsis muaj zog tsis lwj tag nrho, thiab nws tsis muaj lub zog sib koom ua ke thaum siv, uas tsis tuaj yeem muab lub zog sib koom ua ke txaus rau cov putty, ua rau cov hmoov tshem tawm los ntawm qhov tsis txaus ntawm qhov tawv thiab lub zog ntawm cov putty.

2. Qhov ntau dua ntawm cov calcium hydroxide hauv cov hmoov tshauv calcium, qhov zoo dua qhov nyuaj ntawm cov putty tsim tawm. Ntawm qhov tsis sib xws, qhov tsawg dua ntawm cov calcium hydroxide hauv cov hmoov tshauv calcium, qhov nyuaj ntawm cov putty ntawm qhov chaw tsim khoom zuj zus, ua rau muaj teeb meem ntawm kev tshem tawm hmoov thiab kev tshem tawm hmoov.

3. Cov hmoov calcium tshauv sib xyaw nrog ntau cov hmoov calcium hnyav, uas ua rau cov ntsiab lus ntawm cov hmoov calcium tshauv qis dhau los muab qhov tawv thiab lub zog txaus rau cov putty, ua rau cov putty poob hmoov. Lub luag haujlwm tseem ceeb ntawm cov hmoov putty yog khaws dej, muab dej txaus rau cov hmoov calcium tshauv tawv, thiab xyuas kom meej cov nyhuv tawv txaus. Yog tias muaj teeb meem nrog qhov zoo ntawm hydroxypropyl methylcellulose lossis cov ntsiab lus ua haujlwm qis, cov dej noo txaus tsis tuaj yeem muab, uas yuav ua rau qhov tawv tsis txaus thiab ua rau cov putty poob hmoov.

Los ntawm cov saum toj no, qhov zoo ntawm hydroxypropyl methylcellulose tsis zoo thiab tsis tuaj yeem ua tiav qee yam, thiab cov hmoov putty yuav poob tawm. Qhov laj thawj tseem ceeb yog grey thov khawv hnyav calcium.