Methyl hydroxyethyl cellulose (MHEC)ichinhu chinobva mu ether chisiri che ionic cellulose chine kukora kwakanaka, kuchengetedza mvura, kugadzira mafirimu uye kushanda zvakanaka. Chinoita basa rakakosha zvikuru mukuvaka kwemazuva ano kwemarara akasanganiswa ne dry-mixed mortar. Chinoshandiswa zvakanyanya muzvigadzirwa zvakasiyana-siyana zvakaita se masonry mortar, plaster mortar, tile adhesive, cement self-leveling uye thermal insulation mortar, izvo zvinogona kuvandudza mashandiro emarara uye kuvandudza kunaka kwekuvaka uye kushanda zvakanaka.
1. Kuvandudza kuchengetwa kwemvura kwedhaka
Rimwe remabasa anonyanya kuzivikanwa eMHEC ibasa rayo rakanaka rekuchengetedza mvura. Munguva yekuvaka dhaka, zvinhu zvinosimbisa simende zvakaita sesimende kana gypsum zvinoda rutsigiro rwakakwana rwemvura mukuoma, nepo dhaka repasi rinowanzo tora mvura yakasimba, izvo zvinokurumidza kunwisa mvura iri mudhaka, zvichikonzera kurasikirwa nemvura nekukurumidza mudhaka uye zvichikanganisa kufambira mberi kwedanho remvura. MHEC inoumba chimiro chemesh chakapararira zvakaenzana mudhaka, inovhara hunyoro zvakasimba, inodzivirira hunyoro kuti husanyungudike nedhaka repasi kana mhepo, uye nokudaro inochengetedza kushanda kwedhaka kwenguva yakareba. Kuchengetedza mvura uku kwakakosha pakuwedzera nguva yekuvaka, kuvandudza kukura kwesimba uye kudzivirira kutsemuka.
2. Kuvandudza mashandiro ekuvaka uye kunzwa kwekushanda
MHEC, semuchina unoshanda, inogona kuvandudza zvakanyanya kugadzikana uye hunhu hwethixotropic hwedhaka, zvichiita kuti dhaka rive nekushanda kwakanaka kwekuvaka. Munguva yekuvaka senge kupurasita nekugadzira, dhaka rine MHEC rine pamusoro wakatsetseka, riri nyore kupararira, harinamati pabanga, uye rine hunhu hwakanaka hwekudzivirira kudonha. Kunyanya kana richivakwa panzvimbo dzakamira, dhaka harisi nyore kutsvedza pasi, izvo zviri nyore kudzora ukobvu hwekuputira uye kuvandudza kushanda kwekuvaka. Pamusoro pezvo, hunhu hwekuzora hweMHEC hunowedzera kushanda kwedhaka, kuderedza kushanda nesimba kwevashandi vekuvaka, uye kunatsiridza kunyaradzwa kwekuvaka.
3. Kubatanidzwa kwakasimbiswa
Kunyangwe MHEC pachayo isiri namati, inobatsira simende kana zvimwe zvinhu zvinobatanidza kuti zvinyatsobatana nehwaro nekuvandudza kunyorova kwedhaka uye kuwedzera nguva yekuvhurika, nokudaro zvichivandudza simba rekubatanidza dhaka nehwaro, zvidhinha, mataira nezvimwe zvinhu. Kunyanya muma tile adhesives uye ma interface agents, MHEC inogona kugadzira firimu rinonamira rakafanana uye rinoramba richienderera mberi, zvichibvumira zvinhu kuti zvinamatire zvakasimba pahwaro, zvichivandudza mashandiro ekubatanidza uye kugadzikana kwehurongwa hwese.
4. Gadzirisa mamiriro uye nguva yekuomesa dhaka
MHEC inogona kunonotsa kunyoroveswa kwesimbi yesimbi kana gypsum mumota, nokudaro ichiwedzera nguva yekuiswa kwesimbi. Izvi zvinobatsira zvikuru pakuvaka munzvimbo dzinopisa zvakanyanya kana dzakaoma, uye zvinogona kudzivirira matambudziko ekuvaka anokonzerwa nekuiswa kwesimbi nekukurumidza, senge kutsemuka kwenzvimbo uye kubatana kusina kusimba. Nekugadzirisa huwandu hweMHEC inowedzerwa zvine mwero, nguva inoshanda yesimbi inogona kudzorwa nemazvo kuti ienderane nezvinodiwa zvekuvaka zvemaitiro akasiyana.
5. Kuvandudza kuramba kwesimbi uye kugara kwenguva refu kwesimbi
Sezvo MHEC ichivandudza kuchengetedza mvura uye kuchinjika kwedhaka, inoderedza kupwanyika uye kurasikirwa nemvura nekukurumidza, inogona kudzivirira kuitika kwekupwanyika kwedhaka uye inovandudza kuramba kwedhaka uye kugara kwenguva refu. Mumasystem ekudzivirira madziro ekunze kana zvivakwa zvinodzivirira kudengenyeka kwenyika, mashandiro aya akakosha zvikuru uye anobatsira pakugadzikana uye hupenyu hwechivakwa.
6. Kuenderana kwakasimba nehurongwa hwedhaka
MHEC, sepolymer isiri ionic, inoenderana zvakanaka nezvinhu zvakasiyana-siyana zvinosimbisa zvakaita sesimende, lime, gypsum, nezvimwe zvinowedzera (zvakaita sehupfu hwelatex hunonyungudika, chinoderedza mvura, chinorwisa kutonhora, nezvimwewo). Izvi zvinoita kuti ishandiswe nyore nyore kune akasiyana masisitimu emota anoshanda, haiwanzoitiki nemakemikari kana kusawirirana kwekushanda, uye inopa rusununguko rwakanyanya rwekugadzira mota yakasanganiswa yakaoma.
7. Kuchinjika uye kugadzikana kwezvakatipoteredza
MHEC inogona kuchinjika zvakanyanya ku pH netembiricha, inogara zvakanaka munzvimbo dzine acidic, neutral kana alkaline shoma, uye inogona kuchengetedza kugadzikana kwakanaka uye kuchengetedza mvura kunyangwe munzvimbo dzine tembiricha yepamusoro. Hunhu uhwu hunoibvumira kushandiswa zvakanyanya mumidziyo yevhu munzvimbo dzakasiyana-siyana dzemamiriro ekunze, kunyanya mukuvaka kwezhizha.
Methyl hydroxyethyl cellulose (MHEC) ine mhedzisiro yakasiyana-siyana.basa mudhaka. Inopa mhinduro yakavimbika, inoshanda uye inodzoreka yekuvaka nekuvandudza kuchengetedza mvura, kuvandudza kushanda, kuwedzera kunamira, kugadzirisa nguva yekugadzika uye kuvandudza kuramba kwekuputika uye kugara kwenguva refu. Nekukura nekukurumidza kwezvinhu zvekuvaka zvakasvibira uye dhaka dzakasanganiswa kare, basa reMHEC richawedzera kuzivikanwa, richiva mubatsiri akakosha uye akakosha mukugadzira dhaka rine simba guru.
Nguva yekutumira: Chikumi-21-2025