Yuav ua li cas los txhim kho lub constructability ntawm cellulose nyob rau hauv high kub phab ntsa nyob rau hauv lub caij ntuj sov

Tam sim no, nws tab tom yuav mus rau lub caij ntuj sov, thiab qhov kub thiab txias yog qhov siab, tshwj xeeb tshaj yog nyob rau sab qaum teb.Qhov kub thiab txias yog cua qhuav.Qhov kub ntawm phab ntsa tuaj yeem ncav cuag 60 ° C.Vim qhov kub thiab txias, cov cellulose feem ntau muaj teeb meem xws li kev tsim kho tsis zoo thiab cov hmoov tshem tawm thaum lub sij hawm tsim kho.Qhov laj thawj tseem ceeb yog vim qhov kub ntawm cov phab ntsa, cov dej tuav ntawm lub putty tsis zoo, yog li cov dej hauv lub putty yog sai absorbed los yog evaporated los ntawm phab ntsa, yog li ntawd lub putty tsis tuaj yeem rov coated thiab khawb.Hollowing thiab tev tawm tshwm.Yuav ua li cas txhim kho cov dej tuav ntawm powdery sab nrauv phab ntsa putty feem ntau muaj cov hauv qab no:

1. Ua kom cov cellulose ether ntau ntxiv

Cellulose ether muaj cov dej tuav tau zoo, tab sis cov dej tuav tsis tau nce ntxiv tom qab qee cov cellulose ether ntxiv.Nyob rau tib lub sijhawm, qhov nce hauv cellulose nce viscosity ntawm putty thiab kev tsim kho tsis du.Tsis tas li ntawd, tus nqi ntawm putty nce.

2. Ua kom tus nqi ntawm lignocellulose

Lignocellulose muaj qee yam dej tuav cov nyhuv.Qhov sib ntxiv ntawm cov ntoo fiber ntau txhim kho cov dej tuav lub peev xwm ntawm cov khoom, ua rau cov khoom siv hydrated tusyees, thiab tuaj yeem txhim kho kev ua haujlwm tau zoo tib lub sijhawm, tab sis txoj cai tswj dej ntawm lignocellulose txawv ntawm cov cellulose.Nws muaj cov yam ntxwv ntawm cov plaub hau nqus.(Dej conduction), yuav muaj noo noo ntawm txhua cov fibers, thiab thaum cov dej noo nyob ib puag ncig ntawm cov fibers hloov thiab txo qis, cov dej noo ntawm cov fibers yuav raug tso tawm sib npaug.Qhib lub sijhawm, tsis yooj yim tawg.Txawm li cas los xij, vim hais tias lub thickness ntawm lub putty nyob rau sab nrauv phab ntsa yog nyias nyias, lub thickness ntawm txhua txheej txheej tsuas yog 0.5-1 hli.Thaum qhov kub thiab txias ntawm lub hauv paus txheej thiab huab cua kub yog qhov siab, nws cov dej tuav kev ua haujlwm tsis pom tseeb, thiab qhov rov ua dua txheej txheej yog qhov nruab nrab.

3. Ua kom cov polymer ntau ntxiv

Nyob rau hauv cov phab ntsa nrog thinner putty, qhuav huab cua thiab lub hauv paus kub, nce tus nqi ntawm polymer yog ib tug ntawm cov zoo tshaj txoj kev uas yuav ua rau lub putty muaj rov scraping zog, tab sis tus nqi ntawm redispersible latex hmoov yog kuj siab, ib tug loj npaum li cas yuav zoo heev nce. tus nqi ntawm putty.Nws tseem tuaj yeem ua lub luag haujlwm zoo dua los ntawm kev ntxiv me me ntawm polyvinyl cawv hmoov, tab sis cov viscosity ntawm polyvinyl cawv hmoov kuj loj, uas yuav cuam tshuam rau kev ua haujlwm, thiab cov khoom siv sanding ntawm putty tsis zoo..

4. Ntxiv cov roj ntsha polymer

Los ntawm kev ntsuam xyuas, nws tau txiav txim siab tias nws yog ib qho kev xaiv zoo dua los ntxiv cov roj nplua nyeem rau sab nrauv phab ntsa putty nyob rau hauv ib puag ncig ntawm qhov kub ntawm lub caij ntuj sov.Lub lubricant belongs rau lub polymer compound, thiab rheological lubricant yog tsuas yog tsom rau kev txhim kho kev tsim kho hauv cov cement-based system.Qhib lub sijhawm thiab ua haujlwm zoo ib yam.Ua kom muaj peev xwm ua haujlwm thiab sag tsis kam ntawm mortars, plasters, renders, plasters thiab adhesives thiab tiv thaiv delamination ntawm tus kheej-leveling cement.Qhov laj thawj rau kev tuav dej yog tias muaj ntau pawg hydrophilic ua haujlwm ntawm nws cov saw hlau molecular.Nyob rau hauv cov ntaub ntawv ntawm rov qab scraping thiab txheej, nws yuav tsis poob dej, muaj zoo heev dej tuav kev ua tau zoo, thiab muaj thickening thiab thixotropy nyob rau tib lub sij hawm, ua rau kev tsim kho smoother thiab muaj peev xwm hloov ib feem ntawm cellulose, tab sis nws cov nqi tsuas yog cellulose ether, thiab nws cov koob tshuaj yog 0.1-0.2%., yog ib qho khoom siv zoo heev, yog siv ua ke nrog cellulose ether, lignocellulose, thiab redispersible latex hmoov, cov nyhuv yuav zoo dua.