Kushandiswa kwe cellulose ethers mumatombo ekuvaka neplastering ibudiriro yakakosha muhunyanzvi hwemazuva ano hwezvinhu zvekuvaka. Haingogone chete kuvandudza mashandiro ekuvaka uye mashandiro ekubatanidza matope, asiwo inovandudza kuchengetedza mvura, kushanda zvakanaka uye hunhu hwayo hwekudzivirira kudzika, nokudaro ichivandudza zvikuru kushanda zvakanaka kwekuvaka uye mhando yekuvaka.
1. Tsanangudzo uye mhando dze cellulose ethers
Cellulose ethers imhando yemakemikari asiri eionic kana ionic polymer anoumbwa nekuchinja kwemakemikari e cellulose yechisikigo. Ine hunhu hwakanaka hwekunyungudika mumvura uye kugadzira firimu uye inowanzoshandiswa mukuvaka, mishonga, chikafu, makemikari ezuva nezuva nedzimwe nzvimbo. Mukuvaka dhaka, ma ether ecellulose anoshandiswa zvakanyanya ndeaya:
Hydroxypropyl methylcellulose (HPMC)
Methyl hydroxyethyl cellulose (MHEC)
HPMC inonyanya kushandiswa mukugadzira masonry neplastering mortar nekuda kwekuchengetedza kwayo mvura zvakanaka, kugadzikana kwayo pakupisa kwakanyanya uye kushanda kwayo zvakanaka pakuvaka.
2. Basa re cellulose ether mumatombo ekugadzira masonry
Dhaka remasonry rinoshandiswa kubatanidza zvinhu zvemasonry zvakaita sezvidhinha nematombo. Zvinoda kuti dhaka rive rakanyatsonamira uye richengetedzwe mvura kudzivirira hunyoro kuti husakurumidze kunyudzwa nezvidhinha panguva yekuvaka, nokudaro zvichikanganisa kubatana kwaro.
Kuvandudza kuchengetwa kwemvura
Cellulose ether ine simba rakanaka rekuchengetedza mvura uye inogona kugadzira firimu rakanaka mudura kuti ivhare hunyoro uye kudzivirira hunyoro kuti husanyungudike nekukurumidza panguva yekugadzira masonry. Izvi zvinobatsira simende kuti inyorove zvizere, nokudaro zvichivandudza kusimba uye kunamira kwedura.
Kuvandudza mashandiro ekuvaka
Mushure mekuwedzera cellulose ether, masonry mortar inozorwa mafuta akawanda uye inotsvedzerera, ine kunzwa kwakanaka kwekuvaka, uye inoderedza matambudziko emhando yepamusoro akadai sekutsemuka kwevhu uye kupwanyika.
Kuvandudza mashandiro ekubatana
Kuchengeta mvura zvakanaka uye kukora kunoita kuti dhaka rive nyore kunamira pamusoro pezvidhinha nematombo, rirege kudonha nyore, uye rinovandudza mashandiro ekuvaka.
3. Basa re cellulose ether mu plaster mortar
Dhaka repurasta rinoshandiswa zvakanyanya pakuenzana nekushongedza madziro echivako, uye rine zvinodiwa zvepamusoro pakushanda kwechivako uye kunaka kwenzvimbo yacho.
Kudzora mwero wemvura inoyerera nesimende
Mu plaster mortar, cellulose ether inogona kunonotsa kurasikirwa nemvura uye kuita kuti simende inyatsoshanda, zvichiita kuti iwedzere simba uye ideredze kupwanyika kwematombo.
Dzivisa kudonha uye kuvandudza mashandiro ekuvaka facade
Nekuda kwekusimba kwakanaka kwe cellulose ether, inogona kudzivirira plaster mortar kuti isatsvedze kana yakavakwa pamusoro wakamira, zvichiita kuti ishande zvakanaka.
Kuvandudza kugona kushanda
Cellulose ether inoita kuti plaster mortar ive nyore kupfava nekupedzisa, inovandudza kushanda zvakanaka kwekuvaka uye kunaka kwenzvimbo, uye inoita kuti nzvimbo ive yakapfava uye ine hunyoro.
Kudzivirira kutsemuka kwakanyanya
Kuvandudzwa kwekuchengetwa kwemvura uye kuchinjika kwayo kunobatsira kuwedzera kusimba kwepurasita uye kuderedza njodzi yekutsemuka nekudonha.
4. Zvinhu zvinokanganisa mashandiro e cellulose ether
Kushanda kwe cellulose ether kwakabatana zvakanyanya nechimiro chayo chemakemikari, mwero wekutsiva (DS), viscosity, saizi yezvikamu nezvimwe zvinhu. Zvikuru sei:
Dhigirii rekutsiva:inokanganisa kunyungudika kwemvura yayo uye mwero wekunyungudika kwayo. Kazhinji, mwero wekutsiva uri pakati pe1.4 ne1.9 wakanyanya kukodzera pakuvaka.
Kusviba:inosarudza kukora kwayo mumota, uye huwandu hwehukobvu hunoshandiswa kazhinji i400~100,000 mPa·s.
Saizi yezvikamu:inokanganisa kupararira kwayo uye mwero wekunyungudika kwayo. Kana saizi yezvikamu zvidiki, inonyungudika nekukurumidza.
5. Chipimo chinoshanda uye matanho ekudzivirira
Mumasonry neplastering mortar, huwandu hwe cellulose ether hunowanzo dzorwa pa 0.1% ~ 0.4% (zvichienderana nehuremu hwesimende kana zvinhu zvinosimbisa). Pakushandisa, kutarisirwa kunofanira kupiwa kune:
Sanganisai zvakakwana kuti musaungane;
Tembiricha yekuputsika uye nguva ye cellulose ether;
Kushanda kwe cellulose ethers dzemhando dzakasiyana uye magiredhi ekupenya kwakasiyana zvakanyanya, uye chiyero chakanakisa chinofanira kutsanangurwa kuburikidza nekuyedza.
Sechinowedzera chine mashandiro akanaka kwazvo,ether ye celluloseyakavandudza zvikuru mashandiro akazara edhaka rekuvaka nepurasita, zvichiita kuti kuvaka kuve kwakanaka uye mhando ive yakavimbika. Nekugadzirwa kwezvinhu zvekuvaka zvakasvibirira, kudiwa kwe ether dze cellulose dzisingakuvadzi nharaunda uye dzinoshanda zvakanyanya kucharamba kuchikura. Mukushandiswa kwakakodzera, kusarudza mhando yakakodzera uye modhi ye cellulose ether uye kudzora nesainzi chiyero chayo ndizvo zvakakosha pakuona kuti mashandiro edhaka anosangana nezvinodiwa.
Nguva yekutumira: Chivabvu-09-2025