HEMC rau Putty nrog Zoo Wetting Ua

HEMC, los yog Hydroxyethyl methyl cellulose, yog ib hom thickener, binder, thiab emulsifier siv nyob rau hauv ntau yam lag luam, nrog rau kev tsim kho, tshuaj pleev ib ce, thiab zaub mov. Ib qho ntawm cov khoom tseem ceeb ntawm HEMC yog nws lub peev xwm los txhim kho kev ua haujlwm ntub dej ntawm cov khoom nws ntxiv rau. Hauv qhov no, peb yuav tham txog yuav ua li cas HEMC tuaj yeem siv los txhim kho kev ua haujlwm ntub dej ntawm Putty.

Putty yog ib hom khoom siv uas feem ntau siv rau hauv kev tsim kho, tshwj xeeb tshaj yog rau txhaws qhov khoob, tawg, thiab qhov hauv cov phab ntsa thiab qab nthab. Nws yog ib yam khoom zoo li tshuaj pleev ib ce uas feem ntau tsim los ntawm kev sib xyaw ntawm calcium carbonate, dej, thiab cov khoom siv khi, xws li latex lossis acrylic. Thaum putty feem ntau yooj yim rau kev ua haujlwm nrog, ib qho ntawm nws cov teeb meem tshwm sim yog kev ua haujlwm tsis zoo wetting. Qhov no txhais tau hais tias nws muaj teeb meem ua raws li qhov chaw thiab sau qhov khoob zoo, ua rau qhov ua tiav zoo tshaj plaws.

Txhawm rau daws qhov teeb meem no, HEMC tuaj yeem muab ntxiv rau putty los txhim kho nws cov kev ua haujlwm ntub dej. HEMC yog ib qho dej-soluble polymer uas tau muab los ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag cell phab ntsa. Thaum ntxiv rau putty, HEMC txhim kho nws lub peev xwm los ntub dej, tso cai rau nws ua kom zoo dua qub thiab ua kom muaj qhov khoob zoo dua. Qhov no ua rau kev ua tiav smoother thiab kev ua tau zoo tag nrho.

Txhawm rau ua tiav qhov xav tau ntawm kev ua haujlwm ntub dej, nws yog ib qho tseem ceeb uas yuav tsum siv hom HEMC thiab ua raws li cov txheej txheem sib xyaw kom haum. Cov hauv qab no yog qee yam tseem ceeb los xav txog thaum siv HEMC hauv Putty:

Hom HEMC: Muaj ntau ntau hom HEMC muaj, txhua tus muaj cov khoom sib txawv thiab cov yam ntxwv. Hom HEMC uas yog qhov zoo tshaj plaws rau putty yuav nyob ntawm seb yam xws li qhov xav tau sib xws, viscosity, thiab daim ntawv thov txheej txheem. Feem ntau, tsawg mus rau nruab nrab viscosity HEMC raug pom zoo rau cov ntawv thov putty.

Cov txheej txheem sib xyaw: Txhawm rau kom ntseeg tau tias HEMC tau muab faib sib npaug thoob plaws hauv lub putty, nws yog ib qho tseem ceeb uas yuav tsum ua raws li cov txheej txheem sib xyaw kom haum. Qhov no feem ntau suav nrog ntxiv HEMC rau hauv dej ua ntej thiab sib tov kom huv si ua ntej ntxiv cov putty. Nws yog ib qho tseem ceeb uas yuav tsum sib tov lub putty kom huv si kom paub meej tias HEMC yog sib npaug zos thiab tsis muaj pob los yog clumps.

Tus nqi ntawm HEMC: Tus nqi ntawm HEMC yuav tsum tau ntxiv rau lub putty yuav nyob ntawm seb cov kev cai tshwj xeeb ntawm daim ntawv thov. Feem ntau, qhov concentration ntawm 0.2% mus rau 0.5% HEMC los ntawm qhov hnyav ntawm lub putty yog pom zoo rau kev ua kom pom kev ntub dej.

Ntxiv nrog rau kev txhim kho kev ua haujlwm ntub dej, HEMC tseem tuaj yeem muab lwm cov txiaj ntsig thaum siv hauv putty. Cov no suav nrog kev txhim kho kev ua haujlwm, zoo dua adhesion rau saum npoo, thiab txo qhov tawg thiab shrinkage. Zuag qhia tag nrho, kev siv HEMC hauv putty yog ib qho txiaj ntsig zoo los txhim kho nws cov kev ua tau zoo thiab ua tiav tiav.