Cement-based tile adhesive parizvino ndiyo yakakura kushandiswa kwedhaka yakaoma-yakasanganiswa, iyo inoumbwa nesamende sechinhu chikuru chesimende uye inowedzerwa nemagiredhi aggregates, anochengetedza mvura, maajenti ekutanga simba, latex poda uye zvimwe organic kana inorganic additives. musanganiswa.Kazhinji, inongoda kusanganiswa nemvura kana ichishandiswa.Kana ichienzaniswa neyakajairika simende dhaka, inogona kuvandudza zvakanyanya simba rekubatanidza pakati pechinhu chakatarisana neiyo substrate, uye ine yakanaka kutsvedza kuramba uye yakanakisa kudzivirira kwemvura uye kupisa kupisa.Uye mabhenefiti echando-thaw cycle kuramba, anonyanya kushandiswa kunamira mukati mechivako uye ekunze madziro mataira, pasi mataira uye zvimwe zvekushongedza zvinhu, zvinoshandiswa zvakanyanya mukati nekunze madziro, pasi, imba yekugezera, kicheni uye dzimwe nzvimbo dzekushongedza kwekuvaka. inonyanya kushandiswa ceramic tile bonding zvinhu.
Kazhinji kana isu tichitonga kushanda kweadhesive tile, isu hatisi kungoteerera kune yayo yekushanda kwekuita uye anti-sliding kugona, asi zvakare teerera kune yayo mechanical simba uye kuvhura nguva.Cellulose ether in tile adhesive haingokanganisa rheological properties ye porcelain adhesive, yakadai sekushanda kwakatsetseka, banga rinonamatira, nezvimwewo, asi inewo simba rakasimba pamagetsi emagetsi ekunamatira tile.
1. Maawa ekuvhura
Kana rabha hupfu uye serulosi eteri kubatanidzwa mune nyoro dhaka, mamwe data mienzaniso inoratidza kuti rabha upfu ane simba kinetic simba kubatanidza simende hydration zvigadzirwa, uye cellulose ether riripo zvakawanda ari interstitial fluid, izvo zvinokanganisa zvakawanda Mortar viscosity uye nokuisa nguva.Kurwisana kwepamusoro kwe cellulose ether yakakura kudarika iyo yehupfu yerabha, uye yakawanda cellulose ether yakafumiswa pamatope interface ichave inobatsira pakuumbwa kwehydrogen bonds pakati pepasi pepasi uye cellulose ether.
Mumatope emvura, mvura iri mudhaka inoputika, uye cellulose ether inowedzerwa pamusoro, uye firimu ichaumbwa pamusoro pevhu mukati memaminitsi mashanu, izvo zvinoderedza kuderera kwemhepo kunotevera, sezvo mvura yakawanda ichiitwa. yakabviswa kubva kune yakakora dhaka Chikamu chacho chinotamira kune yakaonda dhaka layer, uye firimu rakaumbwa pakutanga rinopedzwa zvishoma, uye kutama kwemvura kuchaunza mamwe serulosi eteri kupfumisa pamusoro pevhu pevhu.
Iyo firimu kuumbwa kwe cellulose ether pamusoro pedhaka ine simba guru pakuita kwedhaka:
1. Iyo firimu yakaumbwa yakanyanya kuonda uye ichanyungudutswa kaviri, isingakwanisi kugadzirisa evaporation yemvura uye kuderedza simba.
2. Iyo firimu yakaumbwa yakanyanyisa.Iko kusanganiswa kwe cellulose ether mumatope interstitial fluid yakakwirira uye viscosity yakakwirira.Hazvisi nyore kuputsa firimu repamusoro kana matiles akaiswa.
Zvinogona kuonekwa kuti firimu-inogadzira zvinhu zve cellulose ether ine simba guru pane yakazaruka nguva.Mhando ye cellulose ether (HPMC, HEMC, MC, etc.) uye dhigirii ye etherification (inotsiva dhigirii) inobata zvakananga maitiro ekugadzira mafirimu e cellulose ether, uye kuoma uye kuoma kwefirimu.
Nguva yekutumira: Zvita-26-2022