Parizvino, zvakawanda masonry uye kupururudza motsi ane basa rekuchengetedza mvura, uye mvura slurry ichaparadzaniswa mushure memaminitsi mashoma ekumira. Saka zvakakosha kwazvo kuwedzera huwandu hwakakodzera hwe cellulose ether kune siment dol.
1. Kuchengetwa kwemvura kwe cellulose ether
Kuchengetwa kwemvura kwakakosha kuita kwemheremalose ether, uye zvakare kuita kuti vazhinji vemugadziri vemweya vakaoma vanogadzira, kunyanya avo vari munzvimbo dzekumaodzanyemba vane tembiricha dzakakwirira, teerera.
Mukugadzirwa kwezvinhu zvekuvakisa, kunyanya kuoma poda dowder, cellulose ether inoita basa risingaperi, kunyanya mukugadzirwa kweanokosha moter (yakagadziriswa moter), chinhu chakakosha uye chakakosha chinhu. Iyo viscosity, dosage, ambient tembiricha uye molecular chimiro che cellulose ether ane pesvedzero huru pakubata kwayo kwemvura. Mumamiriro ezvinhu mamwechete, iyo yakakura iyo visikopo ye cellulose ether, iri nani kuchengetwa kwemvura; Iyo yakakwira dosage, iri nani kuchengetwa kwemvura. Kazhinji, chidiki chidiki che cellulose ether chinogona kuvandudza kudzikisira kwemvura kune dhaka. Pakasvika dosage ichisvika pane imwe nguva yekuchengetwa kwemvura inowedzera, maitiro ehuwandu hwekuchengetwa kwemvura anoregedza; Kana iyo ambure tembiricha ichisimuka, kuchengetwa kwemvura kwemusangano ether kazhinji kunowanzo kuderera, asi vamwe cellulose ma cellulose vaine kuchengetedzwa kwemvura zviri nani pasi pemamiriro ekunze ekushisa; Machira ane madhigirii akadzika ezvekutsiva vegan ether ane mari yekuchengetedza mvura.
Iyo hydroxyl boka pane cellulose ether molecule uye okisijeni pane iyo yekubatanidza inoshamwaridzana nemamolekhodhi yemvura kuti abatanidze mvura yehydrogen, nekudaro ichitamba basa rakanaka mukuchengetwa kwemvura; Mamolekhou emvura uye cellulose ether molecular keteni inobvumidza mamalekhollencules yemvura kuti ivhu macromolecular. Cellulose Ether inovandudza iyo nyowani slement slurry iyo rateological zvivakwa, osmotic network kana iyo firimu-inoumba midziyo ye cellulose ether inotadzisa kusiyana kwemvura.
2. Kukakavara uye iyo thisiotropy ye cellulose ether
Cellulose ether inowana mongororo yakanyorova neyekukwazisa, iyo inogona kuwedzera zvakanyanya kugona kwekurongedza pakati pemucheka weruboshwe uye nekuvandudza basa rekutyaira. Iyo inoshandiswa zvakanyanya mulastering motsi, zvidhinha maruva marara uye kunze kwemadziro ekunze system system. Mhedzisiro inoshamisa ye cellulose ether inogonawo kuwedzera iyo anti-kupararira kugona uye kudzivisa kusagadzikana, uye inogona kushandiswa mufiriji kongiri, pasi pemvura concrete uye yekuzvibata-converting kongiri.
Iko kukonzeresa simba re cellulose ether pa coment-based zvigadzirwa zvinobva kune viscosity ye cellulose erthime. Pasi pemamiriro ezvinhu akafanana, iyo yekukwirira kwemasangano e cellulose ether, zviri nani zvisizvo zvezvinyorwa zvakasarudzika, asi kana visikoity yakakwira kwazvo, ichakanganisa iyo yezvinhu (sekunonamira banga ripi). Kuzvibata-kuyambuka dhaka uye kuzvimiririra kongiri, kunoda yakakwirira fluidity, inoda viscosity yakaderera ye cellulose ether. Uye zvakare, iyo inoshamisa mhedzisiro ye cellulose ether ichawedzera iyo yemvura inodiwa yezvinhu zvemukati-zvakavakirwa uye wedzera gobvu remuumbi.
Yakakwira-viscosity cellulose ether mhinduro yemvura ine yakakwira thixotropy, iyo zvakare hombe hunhu hwe cellulose ether. Mhinduro dzemumhepo dze methyl cellulose kazhinji dzine pseudoplastics uye isina-thixotropic fluidity pazasi payo its gleng tembiricha, Pseudoplasticality inowedzera neyekuwedzera uremu kana kusunganidzwa kwemheremelle ether, zvisinei nerudzi rwetsiva uye degree rekutsiva. Naizvozvo, mheremalose etana emagrosity gracosity giredhi, hpmc, hemc, inogara ichiratidza zvimwe zvinhu zvechitsidzo kwenguva yakareba sekusangana uye tembiricha inogara ichichengetwa nguva dzose. Matura emhando ikagadzirwa kana tembiricha yamutswa, uye zvakanyanya thisiotropic inoyerera inoitika.
Yakanyanya kuderera uye yakaderera viscosity cellulose ana anairatidzira thixotropy kunyangwe pazasi pegomba tembiricha. Ichi chivakwa chinobatsira zvikuru kugadzirisa kwekuwedzera uye kusekerera mukuvakwa kwekuvaka moter. Zvinoda kutsanangurwa pano iyo yakakwira viscosity ye cellulose ether, iko zviri nani kuchengetwa kwemvura, asi iyo inoenderana nehukama hwemaCellulose ether, uye inoenderana nekukanganiswa kwayo, iyo ine yakaipa kukonzeresa kusimba kwemotokari uye kuita kwekuvaka.
Iyo viscosity, dosage, ambient tembiricha uye molecular chimiro che cellulose ether ane pesvedzero huru pakubata kwayo kwemvura. Mumamiriro ezvinhu mamwechete, iyo yakakura iyo visikopo ye cellulose ether, iri nani kuchengetwa kwemvura; Iyo yakakwira dosage, iri nani kuchengetwa kwemvura. Kazhinji, chidiki chidiki che cellulose ether chinogona kuvandudza kudzikisira kwemvura kune dhaka. Pakasvika dosage ichisvika pane imwe nguva yekuchengetwa kwemvura inowedzera, maitiro ehuwandu hwekuchengetwa kwemvura anoregedza; Kana iyo ambure tembiricha ichisimuka, kuchengetwa kwemvura kwemusangano ether kazhinji kunowanzo kuderera, asi vamwe cellulose ma cellulose vaine kuchengetedzwa kwemvura zviri nani pasi pemamiriro ekunze ekushisa; Machira ane madhigirii akadzika ezvekutsiva vegan ether ane mari yekuchengetedza mvura.
Iyo hydroxyl boka pane cellulose ether molecule uye okisijeni pane iyo yekubatanidza inoshamwaridzana nemamolekhodhi yemvura kuti abatanidze mvura yehydrogen, nekudaro ichitamba basa rakanaka mukuchengetwa kwemvura; Mamolekhou emvura uye cellulose ether molecular keteni inobvumidza mamalekhollencules yemvura kuti ivhu macromolecular. Cellulose Ether inovandudza iyo nyowani slement slurry iyo rateological zvivakwa, osmotic network kana iyo firimu-inoumba midziyo ye cellulose ether inotadzisa kusiyana kwemvura.
3. Iyo mhepo-yekupindira mhedzisiro ye cellulose ether
Cellulose ether ine zviri pachena mweya-yekupindira inokanganisa pane yakachena cement-yakavakirwa zvinhu. Cellulose ether ine ese mapoka ehydrophilic (hydroxyl mapoka, emagetsi emapoka) uye mapoka e hydrophobic (methyl mapoka, denderedzwa nemhepo, nekudaro ine mhepo-yekupindirana. Mhepo-yekupindira yemari ye cellulose ichabereka "bhora" maitiro, ayo anogona kuwedzera kupatsanurana uye nekutsvedza kwemunyeredzi panguva yekuvhiringidza, iyo inokodzera kupararira kwemotokari; Izvo zvichawedzerawo kubudiswa kwemutya, kuderedza mari yekugadzira yemota; Asi ichawedzera rorosimba kwechinhu chakaomeswa uye kuderedza michina yayo michina yakadai sesimba uye elastic modulus.
Semunhu anofamba-famba, cellulose ether ane yakanyoroveswa kana kuisirwa mari pane spoment zvikamu zveSemende. Iyo pesvedzero pane iyo fluidity yeiyo simende-yakavakirwa zvinhu kusanganiswa kweplastictizing uye kwakakora mhedzisiro. Kazhinji, kana zviri mukati meCellulose ether zvakanyanyisa kuderera, iko kugona kukuru kupurasitiki kana kuderedzwa kwemvura; Kana zvirimo zvakakwira, mhedzisiro yemasero e cellulose ether inowedzera nekukurumidza, uye iyo yemhepo-inopinda mhedzisiro inowanzogutsa. Saka zvinoratidza sekukanganisa kwakasiyana kana kuwedzera kwekuda kwemvura.
4. Kudzorera mhedzisiro yemheremalose ether
Cellulose ether ichawedzera nguva yekuisa nguva yekukanda kana dhiri, uye kunonoka kuwiriranwa kweiyo mongororo uye kurasikirwa nekongiri nekufamba kwenguva, asi zvinogona zvakare kunonoka kufambira mberi kwekuvaka.
Post Nguva: Kukadzi-03-2023