Kuchengetwa kwemvura kwecellulose ethers
Kuchengetedzwa kwemvura (water retention of mortar) zvinoreva kugona kwedhaka kuchengetedza nekukiya mwando.Iyo yakakwirira viscosity ye cellulose ether, zviri nani kuchengetedza mvura.Nekuti iyo cellulose chimiro chine hydroxyl uye ether zvisungo, atomu reokisijeni riri pahydroxyl uye ether bond boka rinosanganiswa nemorekuru remvura kuumba mabhondi ehydrogen, kuitira kuti mvura yemahara inosungwa mvura uye inovhuvhuta mvura, nokudaro ichiita basa remvura. kuchengetedza.
Solubility yecellulose ether
1. Iyo coarser cellulose ether inoparadzirwa nyore nyore mumvura pasina agglomeration, asi chiyero chekuparara chinononoka zvikuru.Cellulose etherspasi pe60 mesh inonyungudika mumvura kwemaminitsi makumi matanhatu.
2. Zvikamu zvakanaka zve cellulose ether zvinoparadzirwa nyore nyore mumvura pasina agglomeration, uye chiyero chekuparara chiri pakati.Kupfuura 80 meshcellulose etherinonyungudutswa mumvura kwemaminitsi matatu.
3. Ultra-fine cellulose ether inopararira nekukurumidza mumvura, inonyungudika nekukasira, uye inoita kukurumidza viscosity.Kupfuura 120 meshcellulose etherinonyungudutswa mumvura kweanenge 10-30 seconds.
Kunaka kwezvikamu zve cellulose ether, zviri nani kuchengetedza mvura.The surface of coarseCellulose Ether HEMCinonyungudika pakarepo mushure mekusangana nemvura uye inoita gel phenomenon.Iyo glue inoputira zvinhu kudzivirira mamorekuru emvura kuti asarambe achipinda, uye dzimwe nguva haigone kuparadzirwa zvakaenzana nekunyungudutswa mushure menguva yakareba yekushushikana, ichigadzira turbidized flocculent solution kana caking.Iyo yakanaka particles pakarepo inopararira uye inonyungudika ichisangana nemvura kuti iite yunifomu viscosity.
Aeration ye cellulose ether
Kufefetedza kwe cellulose ether kunonyanya kukonzerwa nekuti cellulose ether imhando ye surfactant, uye kupindirana kwemaitiro e cellulose ether kunonyanya kuitika pagasi-liquid-solid interface, kutanga nekuunza mabhuru, kuteverwa nekupararira nekunyorova.Cellulose ethers ine alkyl mapoka, ayo anoderedza zvakanyanya kusimba kwepasi uye kupindirana kwesimba remvura, zvichiita kuti mvura ine mvura ibudise mabhuru madiki akavharika nyore nyore panguva yekushushikana.
Gelatincity ye cellulose ethers
Mushure mekunge cellulose ether yanyungudutswa mudhaka, boka remethoxy uye hydroxypropyl boka riri pa molecular chain richabatana ne calcium uye aluminium ions mu slurry kuumba gel viscous uye kuzadza kusina kwesamende dhaka, kuvandudza densification. dhaka uye kutamba basa rekuchinjika kuzadza nekusimbisa.Nekudaro, kana iyo composite matrix ikatsikirirwa, iyo polima haigone kutamba yakasimba kutsigira basa, saka iyo simba uye kupeta kupeta reshiyo yedhaka inodzikira.
Mafirimu ekugadzira zvinhu zve cellulose ether
Firimu yakaonda yelatex inoumbwa pakati pe cellulose ether uye simende zvimedu mushure me hydration, iyo ine chisimbiso mhedzisiro uye inovandudza kuomeswa kwepasi kwedhaka.Nekuda kwekuchengetwa kwakanaka kwemvura kwe cellulose ether, mamorekuru emvura akakwana anochengeterwa mukati medhaka, kuitira kuti ave nechokwadi chekuti hydration uye kuomeswa kwesimende uye kukura kwakazara kwesimba, kuvandudza kusimba kwechisungo chedhaka, uye kugadzirisa kubatana kwedhaka, kuitira kuti dhaka rive nepurasitiki yakanaka uye kushanduka, uye kuderedza shrinkage deformation yedhaka.
Nguva yekutumira: Mar-12-2024