Basa re cellulose ether mudhaka

Cellulose etherkuchengetedza mvura

Kuchengetedzwa kwemvura (water retention of mortar) zvinoreva kugona kwedhaka kubata nekukiya mvura.Iyo yakakwirira viscosity ye cellulose ether, zviri nani kuchengetedza mvura.Nekuti cellulose chimiro chine hydroxyl uye ether bond, hydroxyl uye ether bond boka reokisijeni maatomu nemamorekuru emvura kugadzira hydrogen bond, kuitira kuti mvura yemahara ipinde mumvura inosunga, inomonereka mvura, kuitira kuti iite basa rekuchengetedza mvura.

Solubility yecellulose ether

1. Iyo coarser cellulose ether iri nyore kupararira mumvura pasina agglomerating, asi chiyero chekunyungudika chinononoka.Cellulose ether iri pasi pe60 mesh inonyungudutswa mumvura kwemaminitsi makumi matanhatu.

2. Zvikamu zvakanaka zve cellulose ether mumvura zviri nyore kuparadzira uye kwete agglomerate, uye chiyero chekuparara chiri pakati nepakati.Cellulose ether pamusoro pe80 mesh yakanyungudutswa mumvura kwemaminitsi matatu.

3. Ultrafine cellulose ether inopararira nokukurumidza mumvura, inonyunguduka nokukurumidza uye inoita viscosity inokurumidza.Cellulose ether pamusoro pe120 mesh inonyungudutswa mumvura kwemasekonzi gumi-30.

Kunyatsonaka kwe cellulose ether particles, zviri nani kuchengetedza mvura, zvidimbu zvakakasharara zve cellulose ether uye mvura yekubata kumeso inonyunguduka nekukasika gel phenomenon.Nama inoputira zvinhu kudzivirira mamorekuru emvura kuti asarambe achipinda.Dzimwe nguva, kunyangwe ikamutswa kwenguva yakareba, mhinduro haigone kuparadzirwa uye kunyungudika zvakaenzana, ichigadzira madhaka flocculent mhinduro kana agglomerate.Zvimedu zvakanaka zvinopararira uye zvinonyungudika pakarepo kana zvasangana nemvura kuita yunifomu viscosity.

PH kukosha kwe cellulose ether (kunonoka coagulation kana simba rekutanga)

Iko PH kukosha kwevagadziri ve cellulose ether kumba nekune dzimwe nyika inodzorwa paanenge 7, iyo ine acidic.Nekuti kuchine yakawanda dehydrated glucose mhete chimiro mune molecular chimiro che cellulose ether, dehydrated glucose mhete ndiro boka guru rinokonzera simende kunonoka.Dehydrated glucose ring inogona kugadzira calcium ions mu simenti hydration solution kuita shuga calcium molecular compounds, kuderedza calcium ion concentration mu simenti hydration induction period, kudzivirira kuumbwa uye kunaya kwe calcium hydroxide uye calcium salt crystals, nokudaro kunonotsa nzira ye simenti hydration.Kana PH kukosha ikava alkaline state, dhaka richaonekwa rekutanga simba mamiriro.Iye zvino mazhinji emafekitori ekugadzirisa PH kukosha achishandisa sodium carbonate, sodium carbonate imhando yeanomhanyisa agent, sodium carbonate inogona kuvandudza mashandiro esimende particle pamusoro, zvichiita kuti kubatana pakati pezvimedu kuwedzere, kuwedzera kuwedzera viscosity ye slurry, dhaka uye sodium carbonate. uye calcium ion compound nokukurumidza, yakakonzera kuumbwa kwe ettringite, simenti condensation nokukurumidza.Naizvozvo, kukosha kwePH kunofanirwa kugadziridzwa zvinoenderana nevatengi vakasiyana mune chaiyo yekugadzira maitiro.

Cellulose ether gasi induction

Kupinda kwemhepo kwe cellulose ether kunonyanya kukonzerwa nekuti cellulose ether zvakare i surfactant, iyo interface basa re cellulose ether rinonyanya kuitika mugasi-liquid-solid interface, yekutanga ndiko kuiswa kwemabhuru, kuteverwa nekupararira uye kunyorova.Cellulose ether ine alkyl boka, inoderedza zvakanyanya tension yepasi uye interfacial simba remvura, mhinduro yemvura mukuita kubvongodza iri nyore kugadzira mabhuru madiki akawanda akavharwa.

Gelation ye cellulose ether

Cellulose ether yakanyungudutswa mudhaka nekuda kweiyo molecular cheni yemethoxy uye hydroxypropyl boka mune slurry ine calcium ion uye aluminium ions mukugadzira viscous gel uye yakazadzwa musimende dhaka gap, inovandudza density yedhaka, ita basa rekuzadza uye kusimbisa.Nekudaro, kana iyo composite matrix ikatsikirirwa, iyo polymer haigone kutamba yakaomesesa rutsigiro, saka iyo simba uye yekumanikidza reshiyo yedhaka inodzikira.

Mafirimu ekugadzirwa kwe cellulose ether

Firimu rakatetepa relatex rinoumbwa pakati pe cellulose ether nesamende zvimedu mushure memvura.Iyo firimu ine yekuisa chisimbiso uye inovandudza pamusoro pakaoma chiitiko chedhaka.Nemhaka yokuti cellulose ether ine mvura yakanaka yekuchengetedza mvura, chengetedza mamorekuru emvura akakwana mukati medhaka, nokudaro kuve nechokwadi chesimba re simenti hydration uye kuoma uye kubudirira zvachose, kuvandudza simba rekubatanidza redhaka, panguva imwechete kuvandudza kunamatira kwe simenti. dhaka, dhaka rine yakanaka plasticity uye kuoma, kuderedza dhaka contraction deformation.